/usr/bin/java -ea -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_9.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 16:18:13,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 16:18:13,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 16:18:13,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 16:18:13,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 16:18:13,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 16:18:13,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 16:18:13,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 16:18:13,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 16:18:13,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 16:18:13,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 16:18:13,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 16:18:13,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 16:18:13,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 16:18:13,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 16:18:13,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 16:18:13,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 16:18:13,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 16:18:13,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 16:18:13,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 16:18:13,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 16:18:13,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 16:18:13,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 16:18:13,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 16:18:13,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 16:18:13,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 16:18:13,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 16:18:13,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 16:18:13,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 16:18:13,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 16:18:13,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 16:18:13,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 16:18:13,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 16:18:13,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 16:18:13,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 16:18:13,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 16:18:13,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 16:18:13,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 16:18:13,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 16:18:13,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 16:18:13,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 16:18:13,152 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 16:18:13,162 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 16:18:13,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 16:18:13,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 16:18:13,164 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 16:18:13,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 16:18:13,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 16:18:13,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 16:18:13,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 16:18:13,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 16:18:13,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 16:18:13,165 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 16:18:13,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 16:18:13,165 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 16:18:13,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 16:18:13,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 16:18:13,166 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 16:18:13,166 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 16:18:13,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 16:18:13,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 16:18:13,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 16:18:13,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 16:18:13,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 16:18:13,167 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 16:18:13,439 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 16:18:13,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 16:18:13,455 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 16:18:13,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 16:18:13,457 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 16:18:13,458 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_9.c [2020-07-08 16:18:13,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc5c41905/bda7bba2172c4e0a84f8230a1d0c7ba2/FLAG377527164 [2020-07-08 16:18:14,006 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 16:18:14,007 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_9.c [2020-07-08 16:18:14,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc5c41905/bda7bba2172c4e0a84f8230a1d0c7ba2/FLAG377527164 [2020-07-08 16:18:14,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc5c41905/bda7bba2172c4e0a84f8230a1d0c7ba2 [2020-07-08 16:18:14,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 16:18:14,359 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 16:18:14,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 16:18:14,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 16:18:14,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 16:18:14,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:18:14" (1/1) ... [2020-07-08 16:18:14,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc01980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:18:14, skipping insertion in model container [2020-07-08 16:18:14,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:18:14" (1/1) ... [2020-07-08 16:18:14,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 16:18:14,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 16:18:14,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:18:14,596 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 16:18:14,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:18:14,639 INFO L208 MainTranslator]: Completed translation [2020-07-08 16:18:14,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:18:14 WrapperNode [2020-07-08 16:18:14,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 16:18:14,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 16:18:14,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 16:18:14,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 16:18:14,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:18:14" (1/1) ... [2020-07-08 16:18:14,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:18:14" (1/1) ... [2020-07-08 16:18:14,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:18:14" (1/1) ... [2020-07-08 16:18:14,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:18:14" (1/1) ... [2020-07-08 16:18:14,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:18:14" (1/1) ... [2020-07-08 16:18:14,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:18:14" (1/1) ... [2020-07-08 16:18:14,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:18:14" (1/1) ... [2020-07-08 16:18:14,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 16:18:14,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 16:18:14,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 16:18:14,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 16:18:14,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:18:14" (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 [2020-07-08 16:18:14,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 16:18:14,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 16:18:14,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 16:18:14,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 16:18:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 16:18:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 16:18:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 16:18:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 16:18:15,401 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 16:18:15,401 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-08 16:18:15,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:18:15 BoogieIcfgContainer [2020-07-08 16:18:15,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 16:18:15,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 16:18:15,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 16:18:15,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 16:18:15,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 04:18:14" (1/3) ... [2020-07-08 16:18:15,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1525bc73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:18:15, skipping insertion in model container [2020-07-08 16:18:15,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:18:14" (2/3) ... [2020-07-08 16:18:15,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1525bc73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:18:15, skipping insertion in model container [2020-07-08 16:18:15,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:18:15" (3/3) ... [2020-07-08 16:18:15,415 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_9.c [2020-07-08 16:18:15,424 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 16:18:15,432 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 16:18:15,446 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 16:18:15,470 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 16:18:15,471 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 16:18:15,471 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 16:18:15,471 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 16:18:15,471 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 16:18:15,471 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 16:18:15,472 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 16:18:15,472 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 16:18:15,491 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2020-07-08 16:18:15,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-08 16:18:15,505 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:18:15,506 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:18:15,506 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:18:15,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:18:15,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1511648252, now seen corresponding path program 1 times [2020-07-08 16:18:15,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:18:15,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301981366] [2020-07-08 16:18:15,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:18:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:15,793 INFO L280 TraceCheckUtils]: 0: Hoare triple {111#true} assume true; {111#true} is VALID [2020-07-08 16:18:15,793 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {111#true} {111#true} #247#return; {111#true} is VALID [2020-07-08 16:18:15,795 INFO L263 TraceCheckUtils]: 0: Hoare triple {111#true} call ULTIMATE.init(); {111#true} is VALID [2020-07-08 16:18:15,796 INFO L280 TraceCheckUtils]: 1: Hoare triple {111#true} assume true; {111#true} is VALID [2020-07-08 16:18:15,796 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {111#true} {111#true} #247#return; {111#true} is VALID [2020-07-08 16:18:15,797 INFO L263 TraceCheckUtils]: 3: Hoare triple {111#true} call #t~ret10 := main(); {111#true} is VALID [2020-07-08 16:18:15,797 INFO L280 TraceCheckUtils]: 4: Hoare triple {111#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {111#true} is VALID [2020-07-08 16:18:15,798 INFO L280 TraceCheckUtils]: 5: Hoare triple {111#true} ~p1~0 := #t~nondet0; {111#true} is VALID [2020-07-08 16:18:15,798 INFO L280 TraceCheckUtils]: 6: Hoare triple {111#true} havoc #t~nondet0; {111#true} is VALID [2020-07-08 16:18:15,799 INFO L280 TraceCheckUtils]: 7: Hoare triple {111#true} havoc ~lk1~0; {111#true} is VALID [2020-07-08 16:18:15,799 INFO L280 TraceCheckUtils]: 8: Hoare triple {111#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {111#true} is VALID [2020-07-08 16:18:15,799 INFO L280 TraceCheckUtils]: 9: Hoare triple {111#true} ~p2~0 := #t~nondet1; {111#true} is VALID [2020-07-08 16:18:15,800 INFO L280 TraceCheckUtils]: 10: Hoare triple {111#true} havoc #t~nondet1; {111#true} is VALID [2020-07-08 16:18:15,800 INFO L280 TraceCheckUtils]: 11: Hoare triple {111#true} havoc ~lk2~0; {111#true} is VALID [2020-07-08 16:18:15,801 INFO L280 TraceCheckUtils]: 12: Hoare triple {111#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {111#true} is VALID [2020-07-08 16:18:15,801 INFO L280 TraceCheckUtils]: 13: Hoare triple {111#true} ~p3~0 := #t~nondet2; {111#true} is VALID [2020-07-08 16:18:15,802 INFO L280 TraceCheckUtils]: 14: Hoare triple {111#true} havoc #t~nondet2; {111#true} is VALID [2020-07-08 16:18:15,802 INFO L280 TraceCheckUtils]: 15: Hoare triple {111#true} havoc ~lk3~0; {111#true} is VALID [2020-07-08 16:18:15,802 INFO L280 TraceCheckUtils]: 16: Hoare triple {111#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {111#true} is VALID [2020-07-08 16:18:15,803 INFO L280 TraceCheckUtils]: 17: Hoare triple {111#true} ~p4~0 := #t~nondet3; {111#true} is VALID [2020-07-08 16:18:15,803 INFO L280 TraceCheckUtils]: 18: Hoare triple {111#true} havoc #t~nondet3; {111#true} is VALID [2020-07-08 16:18:15,804 INFO L280 TraceCheckUtils]: 19: Hoare triple {111#true} havoc ~lk4~0; {111#true} is VALID [2020-07-08 16:18:15,804 INFO L280 TraceCheckUtils]: 20: Hoare triple {111#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {111#true} is VALID [2020-07-08 16:18:15,805 INFO L280 TraceCheckUtils]: 21: Hoare triple {111#true} ~p5~0 := #t~nondet4; {111#true} is VALID [2020-07-08 16:18:15,805 INFO L280 TraceCheckUtils]: 22: Hoare triple {111#true} havoc #t~nondet4; {111#true} is VALID [2020-07-08 16:18:15,805 INFO L280 TraceCheckUtils]: 23: Hoare triple {111#true} havoc ~lk5~0; {111#true} is VALID [2020-07-08 16:18:15,806 INFO L280 TraceCheckUtils]: 24: Hoare triple {111#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {111#true} is VALID [2020-07-08 16:18:15,806 INFO L280 TraceCheckUtils]: 25: Hoare triple {111#true} ~p6~0 := #t~nondet5; {111#true} is VALID [2020-07-08 16:18:15,807 INFO L280 TraceCheckUtils]: 26: Hoare triple {111#true} havoc #t~nondet5; {111#true} is VALID [2020-07-08 16:18:15,807 INFO L280 TraceCheckUtils]: 27: Hoare triple {111#true} havoc ~lk6~0; {111#true} is VALID [2020-07-08 16:18:15,807 INFO L280 TraceCheckUtils]: 28: Hoare triple {111#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {111#true} is VALID [2020-07-08 16:18:15,808 INFO L280 TraceCheckUtils]: 29: Hoare triple {111#true} ~p7~0 := #t~nondet6; {111#true} is VALID [2020-07-08 16:18:15,808 INFO L280 TraceCheckUtils]: 30: Hoare triple {111#true} havoc #t~nondet6; {111#true} is VALID [2020-07-08 16:18:15,809 INFO L280 TraceCheckUtils]: 31: Hoare triple {111#true} havoc ~lk7~0; {111#true} is VALID [2020-07-08 16:18:15,809 INFO L280 TraceCheckUtils]: 32: Hoare triple {111#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {111#true} is VALID [2020-07-08 16:18:15,809 INFO L280 TraceCheckUtils]: 33: Hoare triple {111#true} ~p8~0 := #t~nondet7; {111#true} is VALID [2020-07-08 16:18:15,810 INFO L280 TraceCheckUtils]: 34: Hoare triple {111#true} havoc #t~nondet7; {111#true} is VALID [2020-07-08 16:18:15,810 INFO L280 TraceCheckUtils]: 35: Hoare triple {111#true} havoc ~lk8~0; {111#true} is VALID [2020-07-08 16:18:15,811 INFO L280 TraceCheckUtils]: 36: Hoare triple {111#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {111#true} is VALID [2020-07-08 16:18:15,811 INFO L280 TraceCheckUtils]: 37: Hoare triple {111#true} ~p9~0 := #t~nondet8; {111#true} is VALID [2020-07-08 16:18:15,811 INFO L280 TraceCheckUtils]: 38: Hoare triple {111#true} havoc #t~nondet8; {111#true} is VALID [2020-07-08 16:18:15,812 INFO L280 TraceCheckUtils]: 39: Hoare triple {111#true} havoc ~lk9~0; {111#true} is VALID [2020-07-08 16:18:15,812 INFO L280 TraceCheckUtils]: 40: Hoare triple {111#true} havoc ~cond~0; {111#true} is VALID [2020-07-08 16:18:15,812 INFO L280 TraceCheckUtils]: 41: Hoare triple {111#true} assume !false; {111#true} is VALID [2020-07-08 16:18:15,813 INFO L280 TraceCheckUtils]: 42: Hoare triple {111#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {111#true} is VALID [2020-07-08 16:18:15,813 INFO L280 TraceCheckUtils]: 43: Hoare triple {111#true} ~cond~0 := #t~nondet9; {111#true} is VALID [2020-07-08 16:18:15,814 INFO L280 TraceCheckUtils]: 44: Hoare triple {111#true} havoc #t~nondet9; {111#true} is VALID [2020-07-08 16:18:15,814 INFO L280 TraceCheckUtils]: 45: Hoare triple {111#true} assume !(0 == ~cond~0); {111#true} is VALID [2020-07-08 16:18:15,814 INFO L280 TraceCheckUtils]: 46: Hoare triple {111#true} ~lk1~0 := 0; {111#true} is VALID [2020-07-08 16:18:15,815 INFO L280 TraceCheckUtils]: 47: Hoare triple {111#true} ~lk2~0 := 0; {111#true} is VALID [2020-07-08 16:18:15,815 INFO L280 TraceCheckUtils]: 48: Hoare triple {111#true} ~lk3~0 := 0; {111#true} is VALID [2020-07-08 16:18:15,815 INFO L280 TraceCheckUtils]: 49: Hoare triple {111#true} ~lk4~0 := 0; {111#true} is VALID [2020-07-08 16:18:15,816 INFO L280 TraceCheckUtils]: 50: Hoare triple {111#true} ~lk5~0 := 0; {111#true} is VALID [2020-07-08 16:18:15,816 INFO L280 TraceCheckUtils]: 51: Hoare triple {111#true} ~lk6~0 := 0; {111#true} is VALID [2020-07-08 16:18:15,816 INFO L280 TraceCheckUtils]: 52: Hoare triple {111#true} ~lk7~0 := 0; {111#true} is VALID [2020-07-08 16:18:15,817 INFO L280 TraceCheckUtils]: 53: Hoare triple {111#true} ~lk8~0 := 0; {111#true} is VALID [2020-07-08 16:18:15,817 INFO L280 TraceCheckUtils]: 54: Hoare triple {111#true} ~lk9~0 := 0; {111#true} is VALID [2020-07-08 16:18:15,818 INFO L280 TraceCheckUtils]: 55: Hoare triple {111#true} assume !(0 != ~p1~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-08 16:18:15,820 INFO L280 TraceCheckUtils]: 56: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p2~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-08 16:18:15,822 INFO L280 TraceCheckUtils]: 57: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p3~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-08 16:18:15,824 INFO L280 TraceCheckUtils]: 58: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p4~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-08 16:18:15,826 INFO L280 TraceCheckUtils]: 59: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p5~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-08 16:18:15,827 INFO L280 TraceCheckUtils]: 60: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p6~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-08 16:18:15,828 INFO L280 TraceCheckUtils]: 61: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p7~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-08 16:18:15,829 INFO L280 TraceCheckUtils]: 62: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p8~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-08 16:18:15,830 INFO L280 TraceCheckUtils]: 63: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p9~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-08 16:18:15,831 INFO L280 TraceCheckUtils]: 64: Hoare triple {115#(= 0 main_~p1~0)} assume 0 != ~p1~0; {112#false} is VALID [2020-07-08 16:18:15,831 INFO L280 TraceCheckUtils]: 65: Hoare triple {112#false} assume 1 != ~lk1~0; {112#false} is VALID [2020-07-08 16:18:15,832 INFO L280 TraceCheckUtils]: 66: Hoare triple {112#false} assume !false; {112#false} is VALID [2020-07-08 16:18:15,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:18:15,846 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:18:15,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301981366] [2020-07-08 16:18:15,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:18:15,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:18:15,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415312634] [2020-07-08 16:18:15,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-08 16:18:15,862 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:18:15,866 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:18:15,977 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:15,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:18:15,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:18:15,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:18:15,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:18:15,991 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 3 states. [2020-07-08 16:18:16,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:16,625 INFO L93 Difference]: Finished difference Result 235 states and 322 transitions. [2020-07-08 16:18:16,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:18:16,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-08 16:18:16,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:18:16,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:16,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2020-07-08 16:18:16,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:16,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2020-07-08 16:18:16,657 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 322 transitions. [2020-07-08 16:18:17,040 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 322 edges. 322 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:17,087 INFO L225 Difference]: With dead ends: 235 [2020-07-08 16:18:17,087 INFO L226 Difference]: Without dead ends: 160 [2020-07-08 16:18:17,093 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 [2020-07-08 16:18:17,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-08 16:18:17,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2020-07-08 16:18:17,245 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:18:17,245 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 158 states. [2020-07-08 16:18:17,246 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 158 states. [2020-07-08 16:18:17,246 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 158 states. [2020-07-08 16:18:17,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:17,259 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2020-07-08 16:18:17,259 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2020-07-08 16:18:17,261 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:17,261 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:17,261 INFO L74 IsIncluded]: Start isIncluded. First operand 158 states. Second operand 160 states. [2020-07-08 16:18:17,262 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 160 states. [2020-07-08 16:18:17,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:17,281 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2020-07-08 16:18:17,281 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2020-07-08 16:18:17,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:17,285 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:17,285 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:18:17,285 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:18:17,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-07-08 16:18:17,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2020-07-08 16:18:17,301 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 67 [2020-07-08 16:18:17,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:18:17,303 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2020-07-08 16:18:17,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:18:17,303 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 158 states and 208 transitions. [2020-07-08 16:18:17,512 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 208 edges. 208 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:17,512 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2020-07-08 16:18:17,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-08 16:18:17,517 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:18:17,517 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:18:17,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 16:18:17,518 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:18:17,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:18:17,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1267771135, now seen corresponding path program 1 times [2020-07-08 16:18:17,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:18:17,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096927764] [2020-07-08 16:18:17,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:18:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:17,602 INFO L280 TraceCheckUtils]: 0: Hoare triple {1224#true} assume true; {1224#true} is VALID [2020-07-08 16:18:17,602 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1224#true} {1224#true} #247#return; {1224#true} is VALID [2020-07-08 16:18:17,603 INFO L263 TraceCheckUtils]: 0: Hoare triple {1224#true} call ULTIMATE.init(); {1224#true} is VALID [2020-07-08 16:18:17,603 INFO L280 TraceCheckUtils]: 1: Hoare triple {1224#true} assume true; {1224#true} is VALID [2020-07-08 16:18:17,603 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1224#true} {1224#true} #247#return; {1224#true} is VALID [2020-07-08 16:18:17,604 INFO L263 TraceCheckUtils]: 3: Hoare triple {1224#true} call #t~ret10 := main(); {1224#true} is VALID [2020-07-08 16:18:17,604 INFO L280 TraceCheckUtils]: 4: Hoare triple {1224#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1224#true} is VALID [2020-07-08 16:18:17,604 INFO L280 TraceCheckUtils]: 5: Hoare triple {1224#true} ~p1~0 := #t~nondet0; {1224#true} is VALID [2020-07-08 16:18:17,605 INFO L280 TraceCheckUtils]: 6: Hoare triple {1224#true} havoc #t~nondet0; {1224#true} is VALID [2020-07-08 16:18:17,605 INFO L280 TraceCheckUtils]: 7: Hoare triple {1224#true} havoc ~lk1~0; {1224#true} is VALID [2020-07-08 16:18:17,605 INFO L280 TraceCheckUtils]: 8: Hoare triple {1224#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1224#true} is VALID [2020-07-08 16:18:17,606 INFO L280 TraceCheckUtils]: 9: Hoare triple {1224#true} ~p2~0 := #t~nondet1; {1224#true} is VALID [2020-07-08 16:18:17,606 INFO L280 TraceCheckUtils]: 10: Hoare triple {1224#true} havoc #t~nondet1; {1224#true} is VALID [2020-07-08 16:18:17,606 INFO L280 TraceCheckUtils]: 11: Hoare triple {1224#true} havoc ~lk2~0; {1224#true} is VALID [2020-07-08 16:18:17,606 INFO L280 TraceCheckUtils]: 12: Hoare triple {1224#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {1224#true} is VALID [2020-07-08 16:18:17,607 INFO L280 TraceCheckUtils]: 13: Hoare triple {1224#true} ~p3~0 := #t~nondet2; {1224#true} is VALID [2020-07-08 16:18:17,607 INFO L280 TraceCheckUtils]: 14: Hoare triple {1224#true} havoc #t~nondet2; {1224#true} is VALID [2020-07-08 16:18:17,607 INFO L280 TraceCheckUtils]: 15: Hoare triple {1224#true} havoc ~lk3~0; {1224#true} is VALID [2020-07-08 16:18:17,608 INFO L280 TraceCheckUtils]: 16: Hoare triple {1224#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {1224#true} is VALID [2020-07-08 16:18:17,608 INFO L280 TraceCheckUtils]: 17: Hoare triple {1224#true} ~p4~0 := #t~nondet3; {1224#true} is VALID [2020-07-08 16:18:17,608 INFO L280 TraceCheckUtils]: 18: Hoare triple {1224#true} havoc #t~nondet3; {1224#true} is VALID [2020-07-08 16:18:17,609 INFO L280 TraceCheckUtils]: 19: Hoare triple {1224#true} havoc ~lk4~0; {1224#true} is VALID [2020-07-08 16:18:17,609 INFO L280 TraceCheckUtils]: 20: Hoare triple {1224#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {1224#true} is VALID [2020-07-08 16:18:17,609 INFO L280 TraceCheckUtils]: 21: Hoare triple {1224#true} ~p5~0 := #t~nondet4; {1224#true} is VALID [2020-07-08 16:18:17,610 INFO L280 TraceCheckUtils]: 22: Hoare triple {1224#true} havoc #t~nondet4; {1224#true} is VALID [2020-07-08 16:18:17,610 INFO L280 TraceCheckUtils]: 23: Hoare triple {1224#true} havoc ~lk5~0; {1224#true} is VALID [2020-07-08 16:18:17,610 INFO L280 TraceCheckUtils]: 24: Hoare triple {1224#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {1224#true} is VALID [2020-07-08 16:18:17,610 INFO L280 TraceCheckUtils]: 25: Hoare triple {1224#true} ~p6~0 := #t~nondet5; {1224#true} is VALID [2020-07-08 16:18:17,611 INFO L280 TraceCheckUtils]: 26: Hoare triple {1224#true} havoc #t~nondet5; {1224#true} is VALID [2020-07-08 16:18:17,611 INFO L280 TraceCheckUtils]: 27: Hoare triple {1224#true} havoc ~lk6~0; {1224#true} is VALID [2020-07-08 16:18:17,611 INFO L280 TraceCheckUtils]: 28: Hoare triple {1224#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {1224#true} is VALID [2020-07-08 16:18:17,612 INFO L280 TraceCheckUtils]: 29: Hoare triple {1224#true} ~p7~0 := #t~nondet6; {1224#true} is VALID [2020-07-08 16:18:17,612 INFO L280 TraceCheckUtils]: 30: Hoare triple {1224#true} havoc #t~nondet6; {1224#true} is VALID [2020-07-08 16:18:17,612 INFO L280 TraceCheckUtils]: 31: Hoare triple {1224#true} havoc ~lk7~0; {1224#true} is VALID [2020-07-08 16:18:17,613 INFO L280 TraceCheckUtils]: 32: Hoare triple {1224#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {1224#true} is VALID [2020-07-08 16:18:17,613 INFO L280 TraceCheckUtils]: 33: Hoare triple {1224#true} ~p8~0 := #t~nondet7; {1224#true} is VALID [2020-07-08 16:18:17,613 INFO L280 TraceCheckUtils]: 34: Hoare triple {1224#true} havoc #t~nondet7; {1224#true} is VALID [2020-07-08 16:18:17,614 INFO L280 TraceCheckUtils]: 35: Hoare triple {1224#true} havoc ~lk8~0; {1224#true} is VALID [2020-07-08 16:18:17,614 INFO L280 TraceCheckUtils]: 36: Hoare triple {1224#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {1224#true} is VALID [2020-07-08 16:18:17,614 INFO L280 TraceCheckUtils]: 37: Hoare triple {1224#true} ~p9~0 := #t~nondet8; {1224#true} is VALID [2020-07-08 16:18:17,614 INFO L280 TraceCheckUtils]: 38: Hoare triple {1224#true} havoc #t~nondet8; {1224#true} is VALID [2020-07-08 16:18:17,615 INFO L280 TraceCheckUtils]: 39: Hoare triple {1224#true} havoc ~lk9~0; {1224#true} is VALID [2020-07-08 16:18:17,615 INFO L280 TraceCheckUtils]: 40: Hoare triple {1224#true} havoc ~cond~0; {1224#true} is VALID [2020-07-08 16:18:17,615 INFO L280 TraceCheckUtils]: 41: Hoare triple {1224#true} assume !false; {1224#true} is VALID [2020-07-08 16:18:17,616 INFO L280 TraceCheckUtils]: 42: Hoare triple {1224#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {1224#true} is VALID [2020-07-08 16:18:17,616 INFO L280 TraceCheckUtils]: 43: Hoare triple {1224#true} ~cond~0 := #t~nondet9; {1224#true} is VALID [2020-07-08 16:18:17,616 INFO L280 TraceCheckUtils]: 44: Hoare triple {1224#true} havoc #t~nondet9; {1224#true} is VALID [2020-07-08 16:18:17,617 INFO L280 TraceCheckUtils]: 45: Hoare triple {1224#true} assume !(0 == ~cond~0); {1224#true} is VALID [2020-07-08 16:18:17,617 INFO L280 TraceCheckUtils]: 46: Hoare triple {1224#true} ~lk1~0 := 0; {1224#true} is VALID [2020-07-08 16:18:17,617 INFO L280 TraceCheckUtils]: 47: Hoare triple {1224#true} ~lk2~0 := 0; {1224#true} is VALID [2020-07-08 16:18:17,617 INFO L280 TraceCheckUtils]: 48: Hoare triple {1224#true} ~lk3~0 := 0; {1224#true} is VALID [2020-07-08 16:18:17,618 INFO L280 TraceCheckUtils]: 49: Hoare triple {1224#true} ~lk4~0 := 0; {1224#true} is VALID [2020-07-08 16:18:17,618 INFO L280 TraceCheckUtils]: 50: Hoare triple {1224#true} ~lk5~0 := 0; {1224#true} is VALID [2020-07-08 16:18:17,618 INFO L280 TraceCheckUtils]: 51: Hoare triple {1224#true} ~lk6~0 := 0; {1224#true} is VALID [2020-07-08 16:18:17,619 INFO L280 TraceCheckUtils]: 52: Hoare triple {1224#true} ~lk7~0 := 0; {1224#true} is VALID [2020-07-08 16:18:17,619 INFO L280 TraceCheckUtils]: 53: Hoare triple {1224#true} ~lk8~0 := 0; {1224#true} is VALID [2020-07-08 16:18:17,619 INFO L280 TraceCheckUtils]: 54: Hoare triple {1224#true} ~lk9~0 := 0; {1224#true} is VALID [2020-07-08 16:18:17,620 INFO L280 TraceCheckUtils]: 55: Hoare triple {1224#true} assume 0 != ~p1~0; {1224#true} is VALID [2020-07-08 16:18:17,621 INFO L280 TraceCheckUtils]: 56: Hoare triple {1224#true} ~lk1~0 := 1; {1228#(= 1 main_~lk1~0)} is VALID [2020-07-08 16:18:17,621 INFO L280 TraceCheckUtils]: 57: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p2~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-08 16:18:17,622 INFO L280 TraceCheckUtils]: 58: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p3~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-08 16:18:17,623 INFO L280 TraceCheckUtils]: 59: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p4~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-08 16:18:17,623 INFO L280 TraceCheckUtils]: 60: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p5~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-08 16:18:17,624 INFO L280 TraceCheckUtils]: 61: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p6~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-08 16:18:17,625 INFO L280 TraceCheckUtils]: 62: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p7~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-08 16:18:17,625 INFO L280 TraceCheckUtils]: 63: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p8~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-08 16:18:17,626 INFO L280 TraceCheckUtils]: 64: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p9~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-08 16:18:17,627 INFO L280 TraceCheckUtils]: 65: Hoare triple {1228#(= 1 main_~lk1~0)} assume 0 != ~p1~0; {1228#(= 1 main_~lk1~0)} is VALID [2020-07-08 16:18:17,628 INFO L280 TraceCheckUtils]: 66: Hoare triple {1228#(= 1 main_~lk1~0)} assume 1 != ~lk1~0; {1225#false} is VALID [2020-07-08 16:18:17,628 INFO L280 TraceCheckUtils]: 67: Hoare triple {1225#false} assume !false; {1225#false} is VALID [2020-07-08 16:18:17,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:18:17,634 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:18:17,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096927764] [2020-07-08 16:18:17,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:18:17,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:18:17,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077010854] [2020-07-08 16:18:17,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-08 16:18:17,636 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:18:17,637 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:18:17,696 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:17,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:18:17,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:18:17,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:18:17,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:18:17,698 INFO L87 Difference]: Start difference. First operand 158 states and 208 transitions. Second operand 3 states. [2020-07-08 16:18:18,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:18,119 INFO L93 Difference]: Finished difference Result 192 states and 256 transitions. [2020-07-08 16:18:18,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:18:18,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-08 16:18:18,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:18:18,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:18,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2020-07-08 16:18:18,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:18,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2020-07-08 16:18:18,128 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 201 transitions. [2020-07-08 16:18:18,326 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 201 edges. 201 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:18,337 INFO L225 Difference]: With dead ends: 192 [2020-07-08 16:18:18,337 INFO L226 Difference]: Without dead ends: 190 [2020-07-08 16:18:18,339 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 [2020-07-08 16:18:18,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-07-08 16:18:18,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 158. [2020-07-08 16:18:18,472 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:18:18,473 INFO L82 GeneralOperation]: Start isEquivalent. First operand 190 states. Second operand 158 states. [2020-07-08 16:18:18,473 INFO L74 IsIncluded]: Start isIncluded. First operand 190 states. Second operand 158 states. [2020-07-08 16:18:18,473 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 158 states. [2020-07-08 16:18:18,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:18,488 INFO L93 Difference]: Finished difference Result 190 states and 254 transitions. [2020-07-08 16:18:18,488 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2020-07-08 16:18:18,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:18,490 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:18,491 INFO L74 IsIncluded]: Start isIncluded. First operand 158 states. Second operand 190 states. [2020-07-08 16:18:18,491 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 190 states. [2020-07-08 16:18:18,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:18,505 INFO L93 Difference]: Finished difference Result 190 states and 254 transitions. [2020-07-08 16:18:18,505 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2020-07-08 16:18:18,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:18,507 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:18,507 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:18:18,507 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:18:18,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-07-08 16:18:18,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 207 transitions. [2020-07-08 16:18:18,517 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 207 transitions. Word has length 68 [2020-07-08 16:18:18,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:18:18,518 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 207 transitions. [2020-07-08 16:18:18,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:18:18,518 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 158 states and 207 transitions. [2020-07-08 16:18:18,740 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 207 edges. 207 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:18,740 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 207 transitions. [2020-07-08 16:18:18,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-08 16:18:18,742 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:18:18,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:18:18,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 16:18:18,743 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:18:18,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:18:18,743 INFO L82 PathProgramCache]: Analyzing trace with hash -383300170, now seen corresponding path program 1 times [2020-07-08 16:18:18,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:18:18,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454210831] [2020-07-08 16:18:18,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:18:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:18,853 INFO L280 TraceCheckUtils]: 0: Hoare triple {2311#true} assume true; {2311#true} is VALID [2020-07-08 16:18:18,854 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2311#true} {2311#true} #247#return; {2311#true} is VALID [2020-07-08 16:18:18,854 INFO L263 TraceCheckUtils]: 0: Hoare triple {2311#true} call ULTIMATE.init(); {2311#true} is VALID [2020-07-08 16:18:18,854 INFO L280 TraceCheckUtils]: 1: Hoare triple {2311#true} assume true; {2311#true} is VALID [2020-07-08 16:18:18,855 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2311#true} {2311#true} #247#return; {2311#true} is VALID [2020-07-08 16:18:18,855 INFO L263 TraceCheckUtils]: 3: Hoare triple {2311#true} call #t~ret10 := main(); {2311#true} is VALID [2020-07-08 16:18:18,855 INFO L280 TraceCheckUtils]: 4: Hoare triple {2311#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {2311#true} is VALID [2020-07-08 16:18:18,856 INFO L280 TraceCheckUtils]: 5: Hoare triple {2311#true} ~p1~0 := #t~nondet0; {2311#true} is VALID [2020-07-08 16:18:18,856 INFO L280 TraceCheckUtils]: 6: Hoare triple {2311#true} havoc #t~nondet0; {2311#true} is VALID [2020-07-08 16:18:18,856 INFO L280 TraceCheckUtils]: 7: Hoare triple {2311#true} havoc ~lk1~0; {2311#true} is VALID [2020-07-08 16:18:18,856 INFO L280 TraceCheckUtils]: 8: Hoare triple {2311#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {2311#true} is VALID [2020-07-08 16:18:18,857 INFO L280 TraceCheckUtils]: 9: Hoare triple {2311#true} ~p2~0 := #t~nondet1; {2311#true} is VALID [2020-07-08 16:18:18,857 INFO L280 TraceCheckUtils]: 10: Hoare triple {2311#true} havoc #t~nondet1; {2311#true} is VALID [2020-07-08 16:18:18,857 INFO L280 TraceCheckUtils]: 11: Hoare triple {2311#true} havoc ~lk2~0; {2311#true} is VALID [2020-07-08 16:18:18,857 INFO L280 TraceCheckUtils]: 12: Hoare triple {2311#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {2311#true} is VALID [2020-07-08 16:18:18,858 INFO L280 TraceCheckUtils]: 13: Hoare triple {2311#true} ~p3~0 := #t~nondet2; {2311#true} is VALID [2020-07-08 16:18:18,858 INFO L280 TraceCheckUtils]: 14: Hoare triple {2311#true} havoc #t~nondet2; {2311#true} is VALID [2020-07-08 16:18:18,858 INFO L280 TraceCheckUtils]: 15: Hoare triple {2311#true} havoc ~lk3~0; {2311#true} is VALID [2020-07-08 16:18:18,859 INFO L280 TraceCheckUtils]: 16: Hoare triple {2311#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {2311#true} is VALID [2020-07-08 16:18:18,859 INFO L280 TraceCheckUtils]: 17: Hoare triple {2311#true} ~p4~0 := #t~nondet3; {2311#true} is VALID [2020-07-08 16:18:18,859 INFO L280 TraceCheckUtils]: 18: Hoare triple {2311#true} havoc #t~nondet3; {2311#true} is VALID [2020-07-08 16:18:18,859 INFO L280 TraceCheckUtils]: 19: Hoare triple {2311#true} havoc ~lk4~0; {2311#true} is VALID [2020-07-08 16:18:18,860 INFO L280 TraceCheckUtils]: 20: Hoare triple {2311#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {2311#true} is VALID [2020-07-08 16:18:18,860 INFO L280 TraceCheckUtils]: 21: Hoare triple {2311#true} ~p5~0 := #t~nondet4; {2311#true} is VALID [2020-07-08 16:18:18,860 INFO L280 TraceCheckUtils]: 22: Hoare triple {2311#true} havoc #t~nondet4; {2311#true} is VALID [2020-07-08 16:18:18,860 INFO L280 TraceCheckUtils]: 23: Hoare triple {2311#true} havoc ~lk5~0; {2311#true} is VALID [2020-07-08 16:18:18,861 INFO L280 TraceCheckUtils]: 24: Hoare triple {2311#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {2311#true} is VALID [2020-07-08 16:18:18,861 INFO L280 TraceCheckUtils]: 25: Hoare triple {2311#true} ~p6~0 := #t~nondet5; {2311#true} is VALID [2020-07-08 16:18:18,861 INFO L280 TraceCheckUtils]: 26: Hoare triple {2311#true} havoc #t~nondet5; {2311#true} is VALID [2020-07-08 16:18:18,871 INFO L280 TraceCheckUtils]: 27: Hoare triple {2311#true} havoc ~lk6~0; {2311#true} is VALID [2020-07-08 16:18:18,872 INFO L280 TraceCheckUtils]: 28: Hoare triple {2311#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {2311#true} is VALID [2020-07-08 16:18:18,872 INFO L280 TraceCheckUtils]: 29: Hoare triple {2311#true} ~p7~0 := #t~nondet6; {2311#true} is VALID [2020-07-08 16:18:18,872 INFO L280 TraceCheckUtils]: 30: Hoare triple {2311#true} havoc #t~nondet6; {2311#true} is VALID [2020-07-08 16:18:18,872 INFO L280 TraceCheckUtils]: 31: Hoare triple {2311#true} havoc ~lk7~0; {2311#true} is VALID [2020-07-08 16:18:18,873 INFO L280 TraceCheckUtils]: 32: Hoare triple {2311#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {2311#true} is VALID [2020-07-08 16:18:18,873 INFO L280 TraceCheckUtils]: 33: Hoare triple {2311#true} ~p8~0 := #t~nondet7; {2311#true} is VALID [2020-07-08 16:18:18,873 INFO L280 TraceCheckUtils]: 34: Hoare triple {2311#true} havoc #t~nondet7; {2311#true} is VALID [2020-07-08 16:18:18,874 INFO L280 TraceCheckUtils]: 35: Hoare triple {2311#true} havoc ~lk8~0; {2311#true} is VALID [2020-07-08 16:18:18,874 INFO L280 TraceCheckUtils]: 36: Hoare triple {2311#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {2311#true} is VALID [2020-07-08 16:18:18,874 INFO L280 TraceCheckUtils]: 37: Hoare triple {2311#true} ~p9~0 := #t~nondet8; {2311#true} is VALID [2020-07-08 16:18:18,874 INFO L280 TraceCheckUtils]: 38: Hoare triple {2311#true} havoc #t~nondet8; {2311#true} is VALID [2020-07-08 16:18:18,875 INFO L280 TraceCheckUtils]: 39: Hoare triple {2311#true} havoc ~lk9~0; {2311#true} is VALID [2020-07-08 16:18:18,875 INFO L280 TraceCheckUtils]: 40: Hoare triple {2311#true} havoc ~cond~0; {2311#true} is VALID [2020-07-08 16:18:18,875 INFO L280 TraceCheckUtils]: 41: Hoare triple {2311#true} assume !false; {2311#true} is VALID [2020-07-08 16:18:18,875 INFO L280 TraceCheckUtils]: 42: Hoare triple {2311#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {2311#true} is VALID [2020-07-08 16:18:18,876 INFO L280 TraceCheckUtils]: 43: Hoare triple {2311#true} ~cond~0 := #t~nondet9; {2311#true} is VALID [2020-07-08 16:18:18,876 INFO L280 TraceCheckUtils]: 44: Hoare triple {2311#true} havoc #t~nondet9; {2311#true} is VALID [2020-07-08 16:18:18,876 INFO L280 TraceCheckUtils]: 45: Hoare triple {2311#true} assume !(0 == ~cond~0); {2311#true} is VALID [2020-07-08 16:18:18,876 INFO L280 TraceCheckUtils]: 46: Hoare triple {2311#true} ~lk1~0 := 0; {2311#true} is VALID [2020-07-08 16:18:18,877 INFO L280 TraceCheckUtils]: 47: Hoare triple {2311#true} ~lk2~0 := 0; {2311#true} is VALID [2020-07-08 16:18:18,877 INFO L280 TraceCheckUtils]: 48: Hoare triple {2311#true} ~lk3~0 := 0; {2311#true} is VALID [2020-07-08 16:18:18,877 INFO L280 TraceCheckUtils]: 49: Hoare triple {2311#true} ~lk4~0 := 0; {2311#true} is VALID [2020-07-08 16:18:18,877 INFO L280 TraceCheckUtils]: 50: Hoare triple {2311#true} ~lk5~0 := 0; {2311#true} is VALID [2020-07-08 16:18:18,878 INFO L280 TraceCheckUtils]: 51: Hoare triple {2311#true} ~lk6~0 := 0; {2311#true} is VALID [2020-07-08 16:18:18,878 INFO L280 TraceCheckUtils]: 52: Hoare triple {2311#true} ~lk7~0 := 0; {2311#true} is VALID [2020-07-08 16:18:18,878 INFO L280 TraceCheckUtils]: 53: Hoare triple {2311#true} ~lk8~0 := 0; {2311#true} is VALID [2020-07-08 16:18:18,878 INFO L280 TraceCheckUtils]: 54: Hoare triple {2311#true} ~lk9~0 := 0; {2311#true} is VALID [2020-07-08 16:18:18,879 INFO L280 TraceCheckUtils]: 55: Hoare triple {2311#true} assume !(0 != ~p1~0); {2311#true} is VALID [2020-07-08 16:18:18,880 INFO L280 TraceCheckUtils]: 56: Hoare triple {2311#true} assume !(0 != ~p2~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-08 16:18:18,880 INFO L280 TraceCheckUtils]: 57: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p3~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-08 16:18:18,881 INFO L280 TraceCheckUtils]: 58: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p4~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-08 16:18:18,882 INFO L280 TraceCheckUtils]: 59: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p5~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-08 16:18:18,882 INFO L280 TraceCheckUtils]: 60: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p6~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-08 16:18:18,883 INFO L280 TraceCheckUtils]: 61: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p7~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-08 16:18:18,884 INFO L280 TraceCheckUtils]: 62: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p8~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-08 16:18:18,884 INFO L280 TraceCheckUtils]: 63: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p9~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-08 16:18:18,885 INFO L280 TraceCheckUtils]: 64: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p1~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-08 16:18:18,886 INFO L280 TraceCheckUtils]: 65: Hoare triple {2315#(= 0 main_~p2~0)} assume 0 != ~p2~0; {2312#false} is VALID [2020-07-08 16:18:18,886 INFO L280 TraceCheckUtils]: 66: Hoare triple {2312#false} assume 1 != ~lk2~0; {2312#false} is VALID [2020-07-08 16:18:18,886 INFO L280 TraceCheckUtils]: 67: Hoare triple {2312#false} assume !false; {2312#false} is VALID [2020-07-08 16:18:18,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:18:18,891 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:18:18,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454210831] [2020-07-08 16:18:18,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:18:18,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:18:18,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189456885] [2020-07-08 16:18:18,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-08 16:18:18,893 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:18:18,893 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:18:18,950 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:18,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:18:18,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:18:18,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:18:18,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:18:18,952 INFO L87 Difference]: Start difference. First operand 158 states and 207 transitions. Second operand 3 states. [2020-07-08 16:18:19,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:19,445 INFO L93 Difference]: Finished difference Result 386 states and 531 transitions. [2020-07-08 16:18:19,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:18:19,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-08 16:18:19,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:18:19,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:19,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2020-07-08 16:18:19,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:19,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2020-07-08 16:18:19,455 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 295 transitions. [2020-07-08 16:18:19,748 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 295 edges. 295 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:19,755 INFO L225 Difference]: With dead ends: 386 [2020-07-08 16:18:19,755 INFO L226 Difference]: Without dead ends: 269 [2020-07-08 16:18:19,756 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 [2020-07-08 16:18:19,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-07-08 16:18:20,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2020-07-08 16:18:20,023 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:18:20,024 INFO L82 GeneralOperation]: Start isEquivalent. First operand 269 states. Second operand 267 states. [2020-07-08 16:18:20,024 INFO L74 IsIncluded]: Start isIncluded. First operand 269 states. Second operand 267 states. [2020-07-08 16:18:20,024 INFO L87 Difference]: Start difference. First operand 269 states. Second operand 267 states. [2020-07-08 16:18:20,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:20,035 INFO L93 Difference]: Finished difference Result 269 states and 361 transitions. [2020-07-08 16:18:20,036 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 361 transitions. [2020-07-08 16:18:20,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:20,036 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:20,037 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states. Second operand 269 states. [2020-07-08 16:18:20,037 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 269 states. [2020-07-08 16:18:20,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:20,048 INFO L93 Difference]: Finished difference Result 269 states and 361 transitions. [2020-07-08 16:18:20,048 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 361 transitions. [2020-07-08 16:18:20,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:20,049 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:20,049 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:18:20,049 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:18:20,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-07-08 16:18:20,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 360 transitions. [2020-07-08 16:18:20,059 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 360 transitions. Word has length 68 [2020-07-08 16:18:20,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:18:20,060 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 360 transitions. [2020-07-08 16:18:20,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:18:20,060 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 267 states and 360 transitions. [2020-07-08 16:18:20,466 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 360 edges. 360 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:20,467 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 360 transitions. [2020-07-08 16:18:20,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-08 16:18:20,468 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:18:20,468 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:18:20,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 16:18:20,469 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:18:20,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:18:20,469 INFO L82 PathProgramCache]: Analyzing trace with hash 113752694, now seen corresponding path program 1 times [2020-07-08 16:18:20,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:18:20,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789147133] [2020-07-08 16:18:20,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:18:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:20,526 INFO L280 TraceCheckUtils]: 0: Hoare triple {4162#true} assume true; {4162#true} is VALID [2020-07-08 16:18:20,527 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {4162#true} {4162#true} #247#return; {4162#true} is VALID [2020-07-08 16:18:20,527 INFO L263 TraceCheckUtils]: 0: Hoare triple {4162#true} call ULTIMATE.init(); {4162#true} is VALID [2020-07-08 16:18:20,527 INFO L280 TraceCheckUtils]: 1: Hoare triple {4162#true} assume true; {4162#true} is VALID [2020-07-08 16:18:20,528 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4162#true} {4162#true} #247#return; {4162#true} is VALID [2020-07-08 16:18:20,528 INFO L263 TraceCheckUtils]: 3: Hoare triple {4162#true} call #t~ret10 := main(); {4162#true} is VALID [2020-07-08 16:18:20,528 INFO L280 TraceCheckUtils]: 4: Hoare triple {4162#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {4162#true} is VALID [2020-07-08 16:18:20,528 INFO L280 TraceCheckUtils]: 5: Hoare triple {4162#true} ~p1~0 := #t~nondet0; {4162#true} is VALID [2020-07-08 16:18:20,529 INFO L280 TraceCheckUtils]: 6: Hoare triple {4162#true} havoc #t~nondet0; {4162#true} is VALID [2020-07-08 16:18:20,529 INFO L280 TraceCheckUtils]: 7: Hoare triple {4162#true} havoc ~lk1~0; {4162#true} is VALID [2020-07-08 16:18:20,529 INFO L280 TraceCheckUtils]: 8: Hoare triple {4162#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {4162#true} is VALID [2020-07-08 16:18:20,529 INFO L280 TraceCheckUtils]: 9: Hoare triple {4162#true} ~p2~0 := #t~nondet1; {4162#true} is VALID [2020-07-08 16:18:20,530 INFO L280 TraceCheckUtils]: 10: Hoare triple {4162#true} havoc #t~nondet1; {4162#true} is VALID [2020-07-08 16:18:20,530 INFO L280 TraceCheckUtils]: 11: Hoare triple {4162#true} havoc ~lk2~0; {4162#true} is VALID [2020-07-08 16:18:20,530 INFO L280 TraceCheckUtils]: 12: Hoare triple {4162#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4162#true} is VALID [2020-07-08 16:18:20,530 INFO L280 TraceCheckUtils]: 13: Hoare triple {4162#true} ~p3~0 := #t~nondet2; {4162#true} is VALID [2020-07-08 16:18:20,531 INFO L280 TraceCheckUtils]: 14: Hoare triple {4162#true} havoc #t~nondet2; {4162#true} is VALID [2020-07-08 16:18:20,531 INFO L280 TraceCheckUtils]: 15: Hoare triple {4162#true} havoc ~lk3~0; {4162#true} is VALID [2020-07-08 16:18:20,531 INFO L280 TraceCheckUtils]: 16: Hoare triple {4162#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {4162#true} is VALID [2020-07-08 16:18:20,531 INFO L280 TraceCheckUtils]: 17: Hoare triple {4162#true} ~p4~0 := #t~nondet3; {4162#true} is VALID [2020-07-08 16:18:20,531 INFO L280 TraceCheckUtils]: 18: Hoare triple {4162#true} havoc #t~nondet3; {4162#true} is VALID [2020-07-08 16:18:20,532 INFO L280 TraceCheckUtils]: 19: Hoare triple {4162#true} havoc ~lk4~0; {4162#true} is VALID [2020-07-08 16:18:20,532 INFO L280 TraceCheckUtils]: 20: Hoare triple {4162#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {4162#true} is VALID [2020-07-08 16:18:20,532 INFO L280 TraceCheckUtils]: 21: Hoare triple {4162#true} ~p5~0 := #t~nondet4; {4162#true} is VALID [2020-07-08 16:18:20,532 INFO L280 TraceCheckUtils]: 22: Hoare triple {4162#true} havoc #t~nondet4; {4162#true} is VALID [2020-07-08 16:18:20,533 INFO L280 TraceCheckUtils]: 23: Hoare triple {4162#true} havoc ~lk5~0; {4162#true} is VALID [2020-07-08 16:18:20,533 INFO L280 TraceCheckUtils]: 24: Hoare triple {4162#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {4162#true} is VALID [2020-07-08 16:18:20,533 INFO L280 TraceCheckUtils]: 25: Hoare triple {4162#true} ~p6~0 := #t~nondet5; {4162#true} is VALID [2020-07-08 16:18:20,533 INFO L280 TraceCheckUtils]: 26: Hoare triple {4162#true} havoc #t~nondet5; {4162#true} is VALID [2020-07-08 16:18:20,534 INFO L280 TraceCheckUtils]: 27: Hoare triple {4162#true} havoc ~lk6~0; {4162#true} is VALID [2020-07-08 16:18:20,534 INFO L280 TraceCheckUtils]: 28: Hoare triple {4162#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {4162#true} is VALID [2020-07-08 16:18:20,534 INFO L280 TraceCheckUtils]: 29: Hoare triple {4162#true} ~p7~0 := #t~nondet6; {4162#true} is VALID [2020-07-08 16:18:20,534 INFO L280 TraceCheckUtils]: 30: Hoare triple {4162#true} havoc #t~nondet6; {4162#true} is VALID [2020-07-08 16:18:20,535 INFO L280 TraceCheckUtils]: 31: Hoare triple {4162#true} havoc ~lk7~0; {4162#true} is VALID [2020-07-08 16:18:20,535 INFO L280 TraceCheckUtils]: 32: Hoare triple {4162#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {4162#true} is VALID [2020-07-08 16:18:20,535 INFO L280 TraceCheckUtils]: 33: Hoare triple {4162#true} ~p8~0 := #t~nondet7; {4162#true} is VALID [2020-07-08 16:18:20,535 INFO L280 TraceCheckUtils]: 34: Hoare triple {4162#true} havoc #t~nondet7; {4162#true} is VALID [2020-07-08 16:18:20,536 INFO L280 TraceCheckUtils]: 35: Hoare triple {4162#true} havoc ~lk8~0; {4162#true} is VALID [2020-07-08 16:18:20,536 INFO L280 TraceCheckUtils]: 36: Hoare triple {4162#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {4162#true} is VALID [2020-07-08 16:18:20,536 INFO L280 TraceCheckUtils]: 37: Hoare triple {4162#true} ~p9~0 := #t~nondet8; {4162#true} is VALID [2020-07-08 16:18:20,536 INFO L280 TraceCheckUtils]: 38: Hoare triple {4162#true} havoc #t~nondet8; {4162#true} is VALID [2020-07-08 16:18:20,537 INFO L280 TraceCheckUtils]: 39: Hoare triple {4162#true} havoc ~lk9~0; {4162#true} is VALID [2020-07-08 16:18:20,537 INFO L280 TraceCheckUtils]: 40: Hoare triple {4162#true} havoc ~cond~0; {4162#true} is VALID [2020-07-08 16:18:20,537 INFO L280 TraceCheckUtils]: 41: Hoare triple {4162#true} assume !false; {4162#true} is VALID [2020-07-08 16:18:20,537 INFO L280 TraceCheckUtils]: 42: Hoare triple {4162#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {4162#true} is VALID [2020-07-08 16:18:20,538 INFO L280 TraceCheckUtils]: 43: Hoare triple {4162#true} ~cond~0 := #t~nondet9; {4162#true} is VALID [2020-07-08 16:18:20,538 INFO L280 TraceCheckUtils]: 44: Hoare triple {4162#true} havoc #t~nondet9; {4162#true} is VALID [2020-07-08 16:18:20,538 INFO L280 TraceCheckUtils]: 45: Hoare triple {4162#true} assume !(0 == ~cond~0); {4162#true} is VALID [2020-07-08 16:18:20,539 INFO L280 TraceCheckUtils]: 46: Hoare triple {4162#true} ~lk1~0 := 0; {4162#true} is VALID [2020-07-08 16:18:20,539 INFO L280 TraceCheckUtils]: 47: Hoare triple {4162#true} ~lk2~0 := 0; {4162#true} is VALID [2020-07-08 16:18:20,539 INFO L280 TraceCheckUtils]: 48: Hoare triple {4162#true} ~lk3~0 := 0; {4162#true} is VALID [2020-07-08 16:18:20,539 INFO L280 TraceCheckUtils]: 49: Hoare triple {4162#true} ~lk4~0 := 0; {4162#true} is VALID [2020-07-08 16:18:20,540 INFO L280 TraceCheckUtils]: 50: Hoare triple {4162#true} ~lk5~0 := 0; {4162#true} is VALID [2020-07-08 16:18:20,540 INFO L280 TraceCheckUtils]: 51: Hoare triple {4162#true} ~lk6~0 := 0; {4162#true} is VALID [2020-07-08 16:18:20,540 INFO L280 TraceCheckUtils]: 52: Hoare triple {4162#true} ~lk7~0 := 0; {4162#true} is VALID [2020-07-08 16:18:20,540 INFO L280 TraceCheckUtils]: 53: Hoare triple {4162#true} ~lk8~0 := 0; {4162#true} is VALID [2020-07-08 16:18:20,540 INFO L280 TraceCheckUtils]: 54: Hoare triple {4162#true} ~lk9~0 := 0; {4162#true} is VALID [2020-07-08 16:18:20,541 INFO L280 TraceCheckUtils]: 55: Hoare triple {4162#true} assume !(0 != ~p1~0); {4162#true} is VALID [2020-07-08 16:18:20,541 INFO L280 TraceCheckUtils]: 56: Hoare triple {4162#true} assume 0 != ~p2~0; {4162#true} is VALID [2020-07-08 16:18:20,542 INFO L280 TraceCheckUtils]: 57: Hoare triple {4162#true} ~lk2~0 := 1; {4166#(= 1 main_~lk2~0)} is VALID [2020-07-08 16:18:20,543 INFO L280 TraceCheckUtils]: 58: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p3~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-08 16:18:20,543 INFO L280 TraceCheckUtils]: 59: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p4~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-08 16:18:20,544 INFO L280 TraceCheckUtils]: 60: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p5~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-08 16:18:20,544 INFO L280 TraceCheckUtils]: 61: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p6~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-08 16:18:20,545 INFO L280 TraceCheckUtils]: 62: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p7~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-08 16:18:20,545 INFO L280 TraceCheckUtils]: 63: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p8~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-08 16:18:20,546 INFO L280 TraceCheckUtils]: 64: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p9~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-08 16:18:20,547 INFO L280 TraceCheckUtils]: 65: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p1~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-08 16:18:20,547 INFO L280 TraceCheckUtils]: 66: Hoare triple {4166#(= 1 main_~lk2~0)} assume 0 != ~p2~0; {4166#(= 1 main_~lk2~0)} is VALID [2020-07-08 16:18:20,548 INFO L280 TraceCheckUtils]: 67: Hoare triple {4166#(= 1 main_~lk2~0)} assume 1 != ~lk2~0; {4163#false} is VALID [2020-07-08 16:18:20,548 INFO L280 TraceCheckUtils]: 68: Hoare triple {4163#false} assume !false; {4163#false} is VALID [2020-07-08 16:18:20,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:18:20,552 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:18:20,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789147133] [2020-07-08 16:18:20,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:18:20,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:18:20,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719355255] [2020-07-08 16:18:20,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-08 16:18:20,554 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:18:20,554 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:18:20,624 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:20,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:18:20,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:18:20,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:18:20,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:18:20,625 INFO L87 Difference]: Start difference. First operand 267 states and 360 transitions. Second operand 3 states. [2020-07-08 16:18:21,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:21,156 INFO L93 Difference]: Finished difference Result 327 states and 446 transitions. [2020-07-08 16:18:21,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:18:21,156 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-08 16:18:21,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:18:21,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:21,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2020-07-08 16:18:21,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:21,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2020-07-08 16:18:21,163 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 197 transitions. [2020-07-08 16:18:21,362 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 197 edges. 197 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:21,371 INFO L225 Difference]: With dead ends: 327 [2020-07-08 16:18:21,371 INFO L226 Difference]: Without dead ends: 325 [2020-07-08 16:18:21,372 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 [2020-07-08 16:18:21,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-07-08 16:18:21,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 267. [2020-07-08 16:18:21,677 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:18:21,677 INFO L82 GeneralOperation]: Start isEquivalent. First operand 325 states. Second operand 267 states. [2020-07-08 16:18:21,677 INFO L74 IsIncluded]: Start isIncluded. First operand 325 states. Second operand 267 states. [2020-07-08 16:18:21,677 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 267 states. [2020-07-08 16:18:21,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:21,690 INFO L93 Difference]: Finished difference Result 325 states and 443 transitions. [2020-07-08 16:18:21,691 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 443 transitions. [2020-07-08 16:18:21,692 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:21,692 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:21,692 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states. Second operand 325 states. [2020-07-08 16:18:21,692 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 325 states. [2020-07-08 16:18:21,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:21,705 INFO L93 Difference]: Finished difference Result 325 states and 443 transitions. [2020-07-08 16:18:21,705 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 443 transitions. [2020-07-08 16:18:21,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:21,706 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:21,706 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:18:21,707 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:18:21,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-07-08 16:18:21,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 358 transitions. [2020-07-08 16:18:21,717 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 358 transitions. Word has length 69 [2020-07-08 16:18:21,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:18:21,717 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 358 transitions. [2020-07-08 16:18:21,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:18:21,717 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 267 states and 358 transitions. [2020-07-08 16:18:22,050 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 358 edges. 358 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:22,050 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 358 transitions. [2020-07-08 16:18:22,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-08 16:18:22,051 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:18:22,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:18:22,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-08 16:18:22,052 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:18:22,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:18:22,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1002841264, now seen corresponding path program 1 times [2020-07-08 16:18:22,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:18:22,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111033183] [2020-07-08 16:18:22,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:18:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:22,158 INFO L280 TraceCheckUtils]: 0: Hoare triple {6007#true} assume true; {6007#true} is VALID [2020-07-08 16:18:22,159 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {6007#true} {6007#true} #247#return; {6007#true} is VALID [2020-07-08 16:18:22,159 INFO L263 TraceCheckUtils]: 0: Hoare triple {6007#true} call ULTIMATE.init(); {6007#true} is VALID [2020-07-08 16:18:22,160 INFO L280 TraceCheckUtils]: 1: Hoare triple {6007#true} assume true; {6007#true} is VALID [2020-07-08 16:18:22,160 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6007#true} {6007#true} #247#return; {6007#true} is VALID [2020-07-08 16:18:22,160 INFO L263 TraceCheckUtils]: 3: Hoare triple {6007#true} call #t~ret10 := main(); {6007#true} is VALID [2020-07-08 16:18:22,161 INFO L280 TraceCheckUtils]: 4: Hoare triple {6007#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {6007#true} is VALID [2020-07-08 16:18:22,161 INFO L280 TraceCheckUtils]: 5: Hoare triple {6007#true} ~p1~0 := #t~nondet0; {6007#true} is VALID [2020-07-08 16:18:22,161 INFO L280 TraceCheckUtils]: 6: Hoare triple {6007#true} havoc #t~nondet0; {6007#true} is VALID [2020-07-08 16:18:22,162 INFO L280 TraceCheckUtils]: 7: Hoare triple {6007#true} havoc ~lk1~0; {6007#true} is VALID [2020-07-08 16:18:22,162 INFO L280 TraceCheckUtils]: 8: Hoare triple {6007#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {6007#true} is VALID [2020-07-08 16:18:22,162 INFO L280 TraceCheckUtils]: 9: Hoare triple {6007#true} ~p2~0 := #t~nondet1; {6007#true} is VALID [2020-07-08 16:18:22,162 INFO L280 TraceCheckUtils]: 10: Hoare triple {6007#true} havoc #t~nondet1; {6007#true} is VALID [2020-07-08 16:18:22,163 INFO L280 TraceCheckUtils]: 11: Hoare triple {6007#true} havoc ~lk2~0; {6007#true} is VALID [2020-07-08 16:18:22,163 INFO L280 TraceCheckUtils]: 12: Hoare triple {6007#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6007#true} is VALID [2020-07-08 16:18:22,163 INFO L280 TraceCheckUtils]: 13: Hoare triple {6007#true} ~p3~0 := #t~nondet2; {6007#true} is VALID [2020-07-08 16:18:22,164 INFO L280 TraceCheckUtils]: 14: Hoare triple {6007#true} havoc #t~nondet2; {6007#true} is VALID [2020-07-08 16:18:22,164 INFO L280 TraceCheckUtils]: 15: Hoare triple {6007#true} havoc ~lk3~0; {6007#true} is VALID [2020-07-08 16:18:22,164 INFO L280 TraceCheckUtils]: 16: Hoare triple {6007#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {6007#true} is VALID [2020-07-08 16:18:22,165 INFO L280 TraceCheckUtils]: 17: Hoare triple {6007#true} ~p4~0 := #t~nondet3; {6007#true} is VALID [2020-07-08 16:18:22,165 INFO L280 TraceCheckUtils]: 18: Hoare triple {6007#true} havoc #t~nondet3; {6007#true} is VALID [2020-07-08 16:18:22,165 INFO L280 TraceCheckUtils]: 19: Hoare triple {6007#true} havoc ~lk4~0; {6007#true} is VALID [2020-07-08 16:18:22,168 INFO L280 TraceCheckUtils]: 20: Hoare triple {6007#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {6007#true} is VALID [2020-07-08 16:18:22,169 INFO L280 TraceCheckUtils]: 21: Hoare triple {6007#true} ~p5~0 := #t~nondet4; {6007#true} is VALID [2020-07-08 16:18:22,169 INFO L280 TraceCheckUtils]: 22: Hoare triple {6007#true} havoc #t~nondet4; {6007#true} is VALID [2020-07-08 16:18:22,170 INFO L280 TraceCheckUtils]: 23: Hoare triple {6007#true} havoc ~lk5~0; {6007#true} is VALID [2020-07-08 16:18:22,170 INFO L280 TraceCheckUtils]: 24: Hoare triple {6007#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {6007#true} is VALID [2020-07-08 16:18:22,170 INFO L280 TraceCheckUtils]: 25: Hoare triple {6007#true} ~p6~0 := #t~nondet5; {6007#true} is VALID [2020-07-08 16:18:22,171 INFO L280 TraceCheckUtils]: 26: Hoare triple {6007#true} havoc #t~nondet5; {6007#true} is VALID [2020-07-08 16:18:22,171 INFO L280 TraceCheckUtils]: 27: Hoare triple {6007#true} havoc ~lk6~0; {6007#true} is VALID [2020-07-08 16:18:22,172 INFO L280 TraceCheckUtils]: 28: Hoare triple {6007#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {6007#true} is VALID [2020-07-08 16:18:22,172 INFO L280 TraceCheckUtils]: 29: Hoare triple {6007#true} ~p7~0 := #t~nondet6; {6007#true} is VALID [2020-07-08 16:18:22,172 INFO L280 TraceCheckUtils]: 30: Hoare triple {6007#true} havoc #t~nondet6; {6007#true} is VALID [2020-07-08 16:18:22,173 INFO L280 TraceCheckUtils]: 31: Hoare triple {6007#true} havoc ~lk7~0; {6007#true} is VALID [2020-07-08 16:18:22,173 INFO L280 TraceCheckUtils]: 32: Hoare triple {6007#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {6007#true} is VALID [2020-07-08 16:18:22,173 INFO L280 TraceCheckUtils]: 33: Hoare triple {6007#true} ~p8~0 := #t~nondet7; {6007#true} is VALID [2020-07-08 16:18:22,174 INFO L280 TraceCheckUtils]: 34: Hoare triple {6007#true} havoc #t~nondet7; {6007#true} is VALID [2020-07-08 16:18:22,174 INFO L280 TraceCheckUtils]: 35: Hoare triple {6007#true} havoc ~lk8~0; {6007#true} is VALID [2020-07-08 16:18:22,174 INFO L280 TraceCheckUtils]: 36: Hoare triple {6007#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {6007#true} is VALID [2020-07-08 16:18:22,174 INFO L280 TraceCheckUtils]: 37: Hoare triple {6007#true} ~p9~0 := #t~nondet8; {6007#true} is VALID [2020-07-08 16:18:22,175 INFO L280 TraceCheckUtils]: 38: Hoare triple {6007#true} havoc #t~nondet8; {6007#true} is VALID [2020-07-08 16:18:22,175 INFO L280 TraceCheckUtils]: 39: Hoare triple {6007#true} havoc ~lk9~0; {6007#true} is VALID [2020-07-08 16:18:22,175 INFO L280 TraceCheckUtils]: 40: Hoare triple {6007#true} havoc ~cond~0; {6007#true} is VALID [2020-07-08 16:18:22,176 INFO L280 TraceCheckUtils]: 41: Hoare triple {6007#true} assume !false; {6007#true} is VALID [2020-07-08 16:18:22,176 INFO L280 TraceCheckUtils]: 42: Hoare triple {6007#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {6007#true} is VALID [2020-07-08 16:18:22,176 INFO L280 TraceCheckUtils]: 43: Hoare triple {6007#true} ~cond~0 := #t~nondet9; {6007#true} is VALID [2020-07-08 16:18:22,180 INFO L280 TraceCheckUtils]: 44: Hoare triple {6007#true} havoc #t~nondet9; {6007#true} is VALID [2020-07-08 16:18:22,180 INFO L280 TraceCheckUtils]: 45: Hoare triple {6007#true} assume !(0 == ~cond~0); {6007#true} is VALID [2020-07-08 16:18:22,180 INFO L280 TraceCheckUtils]: 46: Hoare triple {6007#true} ~lk1~0 := 0; {6007#true} is VALID [2020-07-08 16:18:22,181 INFO L280 TraceCheckUtils]: 47: Hoare triple {6007#true} ~lk2~0 := 0; {6007#true} is VALID [2020-07-08 16:18:22,181 INFO L280 TraceCheckUtils]: 48: Hoare triple {6007#true} ~lk3~0 := 0; {6007#true} is VALID [2020-07-08 16:18:22,181 INFO L280 TraceCheckUtils]: 49: Hoare triple {6007#true} ~lk4~0 := 0; {6007#true} is VALID [2020-07-08 16:18:22,181 INFO L280 TraceCheckUtils]: 50: Hoare triple {6007#true} ~lk5~0 := 0; {6007#true} is VALID [2020-07-08 16:18:22,181 INFO L280 TraceCheckUtils]: 51: Hoare triple {6007#true} ~lk6~0 := 0; {6007#true} is VALID [2020-07-08 16:18:22,182 INFO L280 TraceCheckUtils]: 52: Hoare triple {6007#true} ~lk7~0 := 0; {6007#true} is VALID [2020-07-08 16:18:22,182 INFO L280 TraceCheckUtils]: 53: Hoare triple {6007#true} ~lk8~0 := 0; {6007#true} is VALID [2020-07-08 16:18:22,182 INFO L280 TraceCheckUtils]: 54: Hoare triple {6007#true} ~lk9~0 := 0; {6007#true} is VALID [2020-07-08 16:18:22,182 INFO L280 TraceCheckUtils]: 55: Hoare triple {6007#true} assume !(0 != ~p1~0); {6007#true} is VALID [2020-07-08 16:18:22,183 INFO L280 TraceCheckUtils]: 56: Hoare triple {6007#true} assume !(0 != ~p2~0); {6007#true} is VALID [2020-07-08 16:18:22,186 INFO L280 TraceCheckUtils]: 57: Hoare triple {6007#true} assume !(0 != ~p3~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-08 16:18:22,187 INFO L280 TraceCheckUtils]: 58: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p4~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-08 16:18:22,188 INFO L280 TraceCheckUtils]: 59: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p5~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-08 16:18:22,189 INFO L280 TraceCheckUtils]: 60: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p6~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-08 16:18:22,190 INFO L280 TraceCheckUtils]: 61: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p7~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-08 16:18:22,191 INFO L280 TraceCheckUtils]: 62: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p8~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-08 16:18:22,192 INFO L280 TraceCheckUtils]: 63: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p9~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-08 16:18:22,193 INFO L280 TraceCheckUtils]: 64: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p1~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-08 16:18:22,194 INFO L280 TraceCheckUtils]: 65: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p2~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-08 16:18:22,194 INFO L280 TraceCheckUtils]: 66: Hoare triple {6011#(= 0 main_~p3~0)} assume 0 != ~p3~0; {6008#false} is VALID [2020-07-08 16:18:22,195 INFO L280 TraceCheckUtils]: 67: Hoare triple {6008#false} assume 1 != ~lk3~0; {6008#false} is VALID [2020-07-08 16:18:22,195 INFO L280 TraceCheckUtils]: 68: Hoare triple {6008#false} assume !false; {6008#false} is VALID [2020-07-08 16:18:22,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:18:22,198 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:18:22,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111033183] [2020-07-08 16:18:22,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:18:22,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:18:22,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418022197] [2020-07-08 16:18:22,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-08 16:18:22,201 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:18:22,202 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:18:22,258 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:22,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:18:22,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:18:22,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:18:22,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:18:22,259 INFO L87 Difference]: Start difference. First operand 267 states and 358 transitions. Second operand 3 states. [2020-07-08 16:18:23,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:23,139 INFO L93 Difference]: Finished difference Result 707 states and 976 transitions. [2020-07-08 16:18:23,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:18:23,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-08 16:18:23,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:18:23,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:23,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2020-07-08 16:18:23,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:23,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2020-07-08 16:18:23,146 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 292 transitions. [2020-07-08 16:18:23,493 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 292 edges. 292 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:23,516 INFO L225 Difference]: With dead ends: 707 [2020-07-08 16:18:23,517 INFO L226 Difference]: Without dead ends: 481 [2020-07-08 16:18:23,519 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 [2020-07-08 16:18:23,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-07-08 16:18:24,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2020-07-08 16:18:24,132 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:18:24,132 INFO L82 GeneralOperation]: Start isEquivalent. First operand 481 states. Second operand 479 states. [2020-07-08 16:18:24,133 INFO L74 IsIncluded]: Start isIncluded. First operand 481 states. Second operand 479 states. [2020-07-08 16:18:24,133 INFO L87 Difference]: Start difference. First operand 481 states. Second operand 479 states. [2020-07-08 16:18:24,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:24,153 INFO L93 Difference]: Finished difference Result 481 states and 651 transitions. [2020-07-08 16:18:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 651 transitions. [2020-07-08 16:18:24,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:24,155 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:24,155 INFO L74 IsIncluded]: Start isIncluded. First operand 479 states. Second operand 481 states. [2020-07-08 16:18:24,155 INFO L87 Difference]: Start difference. First operand 479 states. Second operand 481 states. [2020-07-08 16:18:24,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:24,175 INFO L93 Difference]: Finished difference Result 481 states and 651 transitions. [2020-07-08 16:18:24,176 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 651 transitions. [2020-07-08 16:18:24,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:24,178 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:24,178 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:18:24,178 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:18:24,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-07-08 16:18:24,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 650 transitions. [2020-07-08 16:18:24,195 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 650 transitions. Word has length 69 [2020-07-08 16:18:24,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:18:24,195 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 650 transitions. [2020-07-08 16:18:24,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:18:24,196 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 479 states and 650 transitions. [2020-07-08 16:18:24,912 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 650 edges. 650 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:24,913 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 650 transitions. [2020-07-08 16:18:24,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-08 16:18:24,914 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:18:24,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:18:24,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-08 16:18:24,915 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:18:24,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:18:24,915 INFO L82 PathProgramCache]: Analyzing trace with hash -8681195, now seen corresponding path program 1 times [2020-07-08 16:18:24,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:18:24,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724298155] [2020-07-08 16:18:24,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:18:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:24,960 INFO L280 TraceCheckUtils]: 0: Hoare triple {9348#true} assume true; {9348#true} is VALID [2020-07-08 16:18:24,960 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {9348#true} {9348#true} #247#return; {9348#true} is VALID [2020-07-08 16:18:24,960 INFO L263 TraceCheckUtils]: 0: Hoare triple {9348#true} call ULTIMATE.init(); {9348#true} is VALID [2020-07-08 16:18:24,961 INFO L280 TraceCheckUtils]: 1: Hoare triple {9348#true} assume true; {9348#true} is VALID [2020-07-08 16:18:24,961 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {9348#true} {9348#true} #247#return; {9348#true} is VALID [2020-07-08 16:18:24,961 INFO L263 TraceCheckUtils]: 3: Hoare triple {9348#true} call #t~ret10 := main(); {9348#true} is VALID [2020-07-08 16:18:24,961 INFO L280 TraceCheckUtils]: 4: Hoare triple {9348#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {9348#true} is VALID [2020-07-08 16:18:24,961 INFO L280 TraceCheckUtils]: 5: Hoare triple {9348#true} ~p1~0 := #t~nondet0; {9348#true} is VALID [2020-07-08 16:18:24,961 INFO L280 TraceCheckUtils]: 6: Hoare triple {9348#true} havoc #t~nondet0; {9348#true} is VALID [2020-07-08 16:18:24,962 INFO L280 TraceCheckUtils]: 7: Hoare triple {9348#true} havoc ~lk1~0; {9348#true} is VALID [2020-07-08 16:18:24,962 INFO L280 TraceCheckUtils]: 8: Hoare triple {9348#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {9348#true} is VALID [2020-07-08 16:18:24,962 INFO L280 TraceCheckUtils]: 9: Hoare triple {9348#true} ~p2~0 := #t~nondet1; {9348#true} is VALID [2020-07-08 16:18:24,962 INFO L280 TraceCheckUtils]: 10: Hoare triple {9348#true} havoc #t~nondet1; {9348#true} is VALID [2020-07-08 16:18:24,962 INFO L280 TraceCheckUtils]: 11: Hoare triple {9348#true} havoc ~lk2~0; {9348#true} is VALID [2020-07-08 16:18:24,962 INFO L280 TraceCheckUtils]: 12: Hoare triple {9348#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9348#true} is VALID [2020-07-08 16:18:24,963 INFO L280 TraceCheckUtils]: 13: Hoare triple {9348#true} ~p3~0 := #t~nondet2; {9348#true} is VALID [2020-07-08 16:18:24,963 INFO L280 TraceCheckUtils]: 14: Hoare triple {9348#true} havoc #t~nondet2; {9348#true} is VALID [2020-07-08 16:18:24,963 INFO L280 TraceCheckUtils]: 15: Hoare triple {9348#true} havoc ~lk3~0; {9348#true} is VALID [2020-07-08 16:18:24,963 INFO L280 TraceCheckUtils]: 16: Hoare triple {9348#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {9348#true} is VALID [2020-07-08 16:18:24,963 INFO L280 TraceCheckUtils]: 17: Hoare triple {9348#true} ~p4~0 := #t~nondet3; {9348#true} is VALID [2020-07-08 16:18:24,963 INFO L280 TraceCheckUtils]: 18: Hoare triple {9348#true} havoc #t~nondet3; {9348#true} is VALID [2020-07-08 16:18:24,964 INFO L280 TraceCheckUtils]: 19: Hoare triple {9348#true} havoc ~lk4~0; {9348#true} is VALID [2020-07-08 16:18:24,964 INFO L280 TraceCheckUtils]: 20: Hoare triple {9348#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {9348#true} is VALID [2020-07-08 16:18:24,964 INFO L280 TraceCheckUtils]: 21: Hoare triple {9348#true} ~p5~0 := #t~nondet4; {9348#true} is VALID [2020-07-08 16:18:24,964 INFO L280 TraceCheckUtils]: 22: Hoare triple {9348#true} havoc #t~nondet4; {9348#true} is VALID [2020-07-08 16:18:24,964 INFO L280 TraceCheckUtils]: 23: Hoare triple {9348#true} havoc ~lk5~0; {9348#true} is VALID [2020-07-08 16:18:24,964 INFO L280 TraceCheckUtils]: 24: Hoare triple {9348#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {9348#true} is VALID [2020-07-08 16:18:24,965 INFO L280 TraceCheckUtils]: 25: Hoare triple {9348#true} ~p6~0 := #t~nondet5; {9348#true} is VALID [2020-07-08 16:18:24,965 INFO L280 TraceCheckUtils]: 26: Hoare triple {9348#true} havoc #t~nondet5; {9348#true} is VALID [2020-07-08 16:18:24,965 INFO L280 TraceCheckUtils]: 27: Hoare triple {9348#true} havoc ~lk6~0; {9348#true} is VALID [2020-07-08 16:18:24,965 INFO L280 TraceCheckUtils]: 28: Hoare triple {9348#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {9348#true} is VALID [2020-07-08 16:18:24,965 INFO L280 TraceCheckUtils]: 29: Hoare triple {9348#true} ~p7~0 := #t~nondet6; {9348#true} is VALID [2020-07-08 16:18:24,966 INFO L280 TraceCheckUtils]: 30: Hoare triple {9348#true} havoc #t~nondet6; {9348#true} is VALID [2020-07-08 16:18:24,966 INFO L280 TraceCheckUtils]: 31: Hoare triple {9348#true} havoc ~lk7~0; {9348#true} is VALID [2020-07-08 16:18:24,966 INFO L280 TraceCheckUtils]: 32: Hoare triple {9348#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {9348#true} is VALID [2020-07-08 16:18:24,966 INFO L280 TraceCheckUtils]: 33: Hoare triple {9348#true} ~p8~0 := #t~nondet7; {9348#true} is VALID [2020-07-08 16:18:24,967 INFO L280 TraceCheckUtils]: 34: Hoare triple {9348#true} havoc #t~nondet7; {9348#true} is VALID [2020-07-08 16:18:24,967 INFO L280 TraceCheckUtils]: 35: Hoare triple {9348#true} havoc ~lk8~0; {9348#true} is VALID [2020-07-08 16:18:24,967 INFO L280 TraceCheckUtils]: 36: Hoare triple {9348#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {9348#true} is VALID [2020-07-08 16:18:24,967 INFO L280 TraceCheckUtils]: 37: Hoare triple {9348#true} ~p9~0 := #t~nondet8; {9348#true} is VALID [2020-07-08 16:18:24,968 INFO L280 TraceCheckUtils]: 38: Hoare triple {9348#true} havoc #t~nondet8; {9348#true} is VALID [2020-07-08 16:18:24,968 INFO L280 TraceCheckUtils]: 39: Hoare triple {9348#true} havoc ~lk9~0; {9348#true} is VALID [2020-07-08 16:18:24,968 INFO L280 TraceCheckUtils]: 40: Hoare triple {9348#true} havoc ~cond~0; {9348#true} is VALID [2020-07-08 16:18:24,968 INFO L280 TraceCheckUtils]: 41: Hoare triple {9348#true} assume !false; {9348#true} is VALID [2020-07-08 16:18:24,968 INFO L280 TraceCheckUtils]: 42: Hoare triple {9348#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {9348#true} is VALID [2020-07-08 16:18:24,969 INFO L280 TraceCheckUtils]: 43: Hoare triple {9348#true} ~cond~0 := #t~nondet9; {9348#true} is VALID [2020-07-08 16:18:24,969 INFO L280 TraceCheckUtils]: 44: Hoare triple {9348#true} havoc #t~nondet9; {9348#true} is VALID [2020-07-08 16:18:24,969 INFO L280 TraceCheckUtils]: 45: Hoare triple {9348#true} assume !(0 == ~cond~0); {9348#true} is VALID [2020-07-08 16:18:24,969 INFO L280 TraceCheckUtils]: 46: Hoare triple {9348#true} ~lk1~0 := 0; {9348#true} is VALID [2020-07-08 16:18:24,970 INFO L280 TraceCheckUtils]: 47: Hoare triple {9348#true} ~lk2~0 := 0; {9348#true} is VALID [2020-07-08 16:18:24,970 INFO L280 TraceCheckUtils]: 48: Hoare triple {9348#true} ~lk3~0 := 0; {9348#true} is VALID [2020-07-08 16:18:24,970 INFO L280 TraceCheckUtils]: 49: Hoare triple {9348#true} ~lk4~0 := 0; {9348#true} is VALID [2020-07-08 16:18:24,970 INFO L280 TraceCheckUtils]: 50: Hoare triple {9348#true} ~lk5~0 := 0; {9348#true} is VALID [2020-07-08 16:18:24,970 INFO L280 TraceCheckUtils]: 51: Hoare triple {9348#true} ~lk6~0 := 0; {9348#true} is VALID [2020-07-08 16:18:24,970 INFO L280 TraceCheckUtils]: 52: Hoare triple {9348#true} ~lk7~0 := 0; {9348#true} is VALID [2020-07-08 16:18:24,971 INFO L280 TraceCheckUtils]: 53: Hoare triple {9348#true} ~lk8~0 := 0; {9348#true} is VALID [2020-07-08 16:18:24,971 INFO L280 TraceCheckUtils]: 54: Hoare triple {9348#true} ~lk9~0 := 0; {9348#true} is VALID [2020-07-08 16:18:24,971 INFO L280 TraceCheckUtils]: 55: Hoare triple {9348#true} assume !(0 != ~p1~0); {9348#true} is VALID [2020-07-08 16:18:24,971 INFO L280 TraceCheckUtils]: 56: Hoare triple {9348#true} assume !(0 != ~p2~0); {9348#true} is VALID [2020-07-08 16:18:24,972 INFO L280 TraceCheckUtils]: 57: Hoare triple {9348#true} assume 0 != ~p3~0; {9348#true} is VALID [2020-07-08 16:18:24,978 INFO L280 TraceCheckUtils]: 58: Hoare triple {9348#true} ~lk3~0 := 1; {9352#(= 1 main_~lk3~0)} is VALID [2020-07-08 16:18:24,978 INFO L280 TraceCheckUtils]: 59: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p4~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-08 16:18:24,980 INFO L280 TraceCheckUtils]: 60: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p5~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-08 16:18:24,980 INFO L280 TraceCheckUtils]: 61: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p6~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-08 16:18:24,981 INFO L280 TraceCheckUtils]: 62: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p7~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-08 16:18:24,981 INFO L280 TraceCheckUtils]: 63: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p8~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-08 16:18:24,981 INFO L280 TraceCheckUtils]: 64: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p9~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-08 16:18:24,982 INFO L280 TraceCheckUtils]: 65: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p1~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-08 16:18:24,982 INFO L280 TraceCheckUtils]: 66: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p2~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-08 16:18:24,983 INFO L280 TraceCheckUtils]: 67: Hoare triple {9352#(= 1 main_~lk3~0)} assume 0 != ~p3~0; {9352#(= 1 main_~lk3~0)} is VALID [2020-07-08 16:18:24,984 INFO L280 TraceCheckUtils]: 68: Hoare triple {9352#(= 1 main_~lk3~0)} assume 1 != ~lk3~0; {9349#false} is VALID [2020-07-08 16:18:24,984 INFO L280 TraceCheckUtils]: 69: Hoare triple {9349#false} assume !false; {9349#false} is VALID [2020-07-08 16:18:24,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:18:24,986 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:18:24,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724298155] [2020-07-08 16:18:24,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:18:24,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:18:24,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703641917] [2020-07-08 16:18:24,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-08 16:18:24,988 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:18:24,988 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:18:25,049 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:25,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:18:25,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:18:25,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:18:25,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:18:25,050 INFO L87 Difference]: Start difference. First operand 479 states and 650 transitions. Second operand 3 states. [2020-07-08 16:18:26,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:26,116 INFO L93 Difference]: Finished difference Result 587 states and 804 transitions. [2020-07-08 16:18:26,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:18:26,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-08 16:18:26,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:18:26,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:26,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2020-07-08 16:18:26,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:26,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2020-07-08 16:18:26,122 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 193 transitions. [2020-07-08 16:18:26,275 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 193 edges. 193 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:26,296 INFO L225 Difference]: With dead ends: 587 [2020-07-08 16:18:26,296 INFO L226 Difference]: Without dead ends: 585 [2020-07-08 16:18:26,297 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 [2020-07-08 16:18:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-07-08 16:18:27,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 479. [2020-07-08 16:18:27,013 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:18:27,013 INFO L82 GeneralOperation]: Start isEquivalent. First operand 585 states. Second operand 479 states. [2020-07-08 16:18:27,013 INFO L74 IsIncluded]: Start isIncluded. First operand 585 states. Second operand 479 states. [2020-07-08 16:18:27,013 INFO L87 Difference]: Start difference. First operand 585 states. Second operand 479 states. [2020-07-08 16:18:27,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:27,037 INFO L93 Difference]: Finished difference Result 585 states and 799 transitions. [2020-07-08 16:18:27,037 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 799 transitions. [2020-07-08 16:18:27,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:27,039 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:27,039 INFO L74 IsIncluded]: Start isIncluded. First operand 479 states. Second operand 585 states. [2020-07-08 16:18:27,040 INFO L87 Difference]: Start difference. First operand 479 states. Second operand 585 states. [2020-07-08 16:18:27,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:27,073 INFO L93 Difference]: Finished difference Result 585 states and 799 transitions. [2020-07-08 16:18:27,074 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 799 transitions. [2020-07-08 16:18:27,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:27,076 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:27,076 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:18:27,077 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:18:27,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-07-08 16:18:27,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 646 transitions. [2020-07-08 16:18:27,105 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 646 transitions. Word has length 70 [2020-07-08 16:18:27,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:18:27,106 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 646 transitions. [2020-07-08 16:18:27,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:18:27,106 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 479 states and 646 transitions. [2020-07-08 16:18:27,826 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 646 edges. 646 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:27,826 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 646 transitions. [2020-07-08 16:18:27,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-08 16:18:27,827 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:18:27,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:18:27,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-08 16:18:27,828 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:18:27,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:18:27,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1023553130, now seen corresponding path program 1 times [2020-07-08 16:18:27,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:18:27,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464179974] [2020-07-08 16:18:27,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:18:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:27,884 INFO L280 TraceCheckUtils]: 0: Hoare triple {12657#true} assume true; {12657#true} is VALID [2020-07-08 16:18:27,885 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {12657#true} {12657#true} #247#return; {12657#true} is VALID [2020-07-08 16:18:27,886 INFO L263 TraceCheckUtils]: 0: Hoare triple {12657#true} call ULTIMATE.init(); {12657#true} is VALID [2020-07-08 16:18:27,886 INFO L280 TraceCheckUtils]: 1: Hoare triple {12657#true} assume true; {12657#true} is VALID [2020-07-08 16:18:27,887 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {12657#true} {12657#true} #247#return; {12657#true} is VALID [2020-07-08 16:18:27,887 INFO L263 TraceCheckUtils]: 3: Hoare triple {12657#true} call #t~ret10 := main(); {12657#true} is VALID [2020-07-08 16:18:27,887 INFO L280 TraceCheckUtils]: 4: Hoare triple {12657#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {12657#true} is VALID [2020-07-08 16:18:27,887 INFO L280 TraceCheckUtils]: 5: Hoare triple {12657#true} ~p1~0 := #t~nondet0; {12657#true} is VALID [2020-07-08 16:18:27,888 INFO L280 TraceCheckUtils]: 6: Hoare triple {12657#true} havoc #t~nondet0; {12657#true} is VALID [2020-07-08 16:18:27,888 INFO L280 TraceCheckUtils]: 7: Hoare triple {12657#true} havoc ~lk1~0; {12657#true} is VALID [2020-07-08 16:18:27,888 INFO L280 TraceCheckUtils]: 8: Hoare triple {12657#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {12657#true} is VALID [2020-07-08 16:18:27,890 INFO L280 TraceCheckUtils]: 9: Hoare triple {12657#true} ~p2~0 := #t~nondet1; {12657#true} is VALID [2020-07-08 16:18:27,890 INFO L280 TraceCheckUtils]: 10: Hoare triple {12657#true} havoc #t~nondet1; {12657#true} is VALID [2020-07-08 16:18:27,891 INFO L280 TraceCheckUtils]: 11: Hoare triple {12657#true} havoc ~lk2~0; {12657#true} is VALID [2020-07-08 16:18:27,891 INFO L280 TraceCheckUtils]: 12: Hoare triple {12657#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {12657#true} is VALID [2020-07-08 16:18:27,891 INFO L280 TraceCheckUtils]: 13: Hoare triple {12657#true} ~p3~0 := #t~nondet2; {12657#true} is VALID [2020-07-08 16:18:27,893 INFO L280 TraceCheckUtils]: 14: Hoare triple {12657#true} havoc #t~nondet2; {12657#true} is VALID [2020-07-08 16:18:27,893 INFO L280 TraceCheckUtils]: 15: Hoare triple {12657#true} havoc ~lk3~0; {12657#true} is VALID [2020-07-08 16:18:27,893 INFO L280 TraceCheckUtils]: 16: Hoare triple {12657#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {12657#true} is VALID [2020-07-08 16:18:27,893 INFO L280 TraceCheckUtils]: 17: Hoare triple {12657#true} ~p4~0 := #t~nondet3; {12657#true} is VALID [2020-07-08 16:18:27,893 INFO L280 TraceCheckUtils]: 18: Hoare triple {12657#true} havoc #t~nondet3; {12657#true} is VALID [2020-07-08 16:18:27,894 INFO L280 TraceCheckUtils]: 19: Hoare triple {12657#true} havoc ~lk4~0; {12657#true} is VALID [2020-07-08 16:18:27,894 INFO L280 TraceCheckUtils]: 20: Hoare triple {12657#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {12657#true} is VALID [2020-07-08 16:18:27,894 INFO L280 TraceCheckUtils]: 21: Hoare triple {12657#true} ~p5~0 := #t~nondet4; {12657#true} is VALID [2020-07-08 16:18:27,894 INFO L280 TraceCheckUtils]: 22: Hoare triple {12657#true} havoc #t~nondet4; {12657#true} is VALID [2020-07-08 16:18:27,894 INFO L280 TraceCheckUtils]: 23: Hoare triple {12657#true} havoc ~lk5~0; {12657#true} is VALID [2020-07-08 16:18:27,895 INFO L280 TraceCheckUtils]: 24: Hoare triple {12657#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {12657#true} is VALID [2020-07-08 16:18:27,895 INFO L280 TraceCheckUtils]: 25: Hoare triple {12657#true} ~p6~0 := #t~nondet5; {12657#true} is VALID [2020-07-08 16:18:27,895 INFO L280 TraceCheckUtils]: 26: Hoare triple {12657#true} havoc #t~nondet5; {12657#true} is VALID [2020-07-08 16:18:27,895 INFO L280 TraceCheckUtils]: 27: Hoare triple {12657#true} havoc ~lk6~0; {12657#true} is VALID [2020-07-08 16:18:27,895 INFO L280 TraceCheckUtils]: 28: Hoare triple {12657#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {12657#true} is VALID [2020-07-08 16:18:27,895 INFO L280 TraceCheckUtils]: 29: Hoare triple {12657#true} ~p7~0 := #t~nondet6; {12657#true} is VALID [2020-07-08 16:18:27,896 INFO L280 TraceCheckUtils]: 30: Hoare triple {12657#true} havoc #t~nondet6; {12657#true} is VALID [2020-07-08 16:18:27,896 INFO L280 TraceCheckUtils]: 31: Hoare triple {12657#true} havoc ~lk7~0; {12657#true} is VALID [2020-07-08 16:18:27,896 INFO L280 TraceCheckUtils]: 32: Hoare triple {12657#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {12657#true} is VALID [2020-07-08 16:18:27,896 INFO L280 TraceCheckUtils]: 33: Hoare triple {12657#true} ~p8~0 := #t~nondet7; {12657#true} is VALID [2020-07-08 16:18:27,896 INFO L280 TraceCheckUtils]: 34: Hoare triple {12657#true} havoc #t~nondet7; {12657#true} is VALID [2020-07-08 16:18:27,896 INFO L280 TraceCheckUtils]: 35: Hoare triple {12657#true} havoc ~lk8~0; {12657#true} is VALID [2020-07-08 16:18:27,896 INFO L280 TraceCheckUtils]: 36: Hoare triple {12657#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {12657#true} is VALID [2020-07-08 16:18:27,897 INFO L280 TraceCheckUtils]: 37: Hoare triple {12657#true} ~p9~0 := #t~nondet8; {12657#true} is VALID [2020-07-08 16:18:27,897 INFO L280 TraceCheckUtils]: 38: Hoare triple {12657#true} havoc #t~nondet8; {12657#true} is VALID [2020-07-08 16:18:27,897 INFO L280 TraceCheckUtils]: 39: Hoare triple {12657#true} havoc ~lk9~0; {12657#true} is VALID [2020-07-08 16:18:27,897 INFO L280 TraceCheckUtils]: 40: Hoare triple {12657#true} havoc ~cond~0; {12657#true} is VALID [2020-07-08 16:18:27,897 INFO L280 TraceCheckUtils]: 41: Hoare triple {12657#true} assume !false; {12657#true} is VALID [2020-07-08 16:18:27,897 INFO L280 TraceCheckUtils]: 42: Hoare triple {12657#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {12657#true} is VALID [2020-07-08 16:18:27,897 INFO L280 TraceCheckUtils]: 43: Hoare triple {12657#true} ~cond~0 := #t~nondet9; {12657#true} is VALID [2020-07-08 16:18:27,897 INFO L280 TraceCheckUtils]: 44: Hoare triple {12657#true} havoc #t~nondet9; {12657#true} is VALID [2020-07-08 16:18:27,898 INFO L280 TraceCheckUtils]: 45: Hoare triple {12657#true} assume !(0 == ~cond~0); {12657#true} is VALID [2020-07-08 16:18:27,898 INFO L280 TraceCheckUtils]: 46: Hoare triple {12657#true} ~lk1~0 := 0; {12657#true} is VALID [2020-07-08 16:18:27,898 INFO L280 TraceCheckUtils]: 47: Hoare triple {12657#true} ~lk2~0 := 0; {12657#true} is VALID [2020-07-08 16:18:27,898 INFO L280 TraceCheckUtils]: 48: Hoare triple {12657#true} ~lk3~0 := 0; {12657#true} is VALID [2020-07-08 16:18:27,898 INFO L280 TraceCheckUtils]: 49: Hoare triple {12657#true} ~lk4~0 := 0; {12657#true} is VALID [2020-07-08 16:18:27,898 INFO L280 TraceCheckUtils]: 50: Hoare triple {12657#true} ~lk5~0 := 0; {12657#true} is VALID [2020-07-08 16:18:27,899 INFO L280 TraceCheckUtils]: 51: Hoare triple {12657#true} ~lk6~0 := 0; {12657#true} is VALID [2020-07-08 16:18:27,899 INFO L280 TraceCheckUtils]: 52: Hoare triple {12657#true} ~lk7~0 := 0; {12657#true} is VALID [2020-07-08 16:18:27,899 INFO L280 TraceCheckUtils]: 53: Hoare triple {12657#true} ~lk8~0 := 0; {12657#true} is VALID [2020-07-08 16:18:27,899 INFO L280 TraceCheckUtils]: 54: Hoare triple {12657#true} ~lk9~0 := 0; {12657#true} is VALID [2020-07-08 16:18:27,899 INFO L280 TraceCheckUtils]: 55: Hoare triple {12657#true} assume !(0 != ~p1~0); {12657#true} is VALID [2020-07-08 16:18:27,899 INFO L280 TraceCheckUtils]: 56: Hoare triple {12657#true} assume !(0 != ~p2~0); {12657#true} is VALID [2020-07-08 16:18:27,899 INFO L280 TraceCheckUtils]: 57: Hoare triple {12657#true} assume !(0 != ~p3~0); {12657#true} is VALID [2020-07-08 16:18:27,900 INFO L280 TraceCheckUtils]: 58: Hoare triple {12657#true} assume !(0 != ~p4~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-08 16:18:27,900 INFO L280 TraceCheckUtils]: 59: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p5~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-08 16:18:27,901 INFO L280 TraceCheckUtils]: 60: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p6~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-08 16:18:27,901 INFO L280 TraceCheckUtils]: 61: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p7~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-08 16:18:27,901 INFO L280 TraceCheckUtils]: 62: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p8~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-08 16:18:27,902 INFO L280 TraceCheckUtils]: 63: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p9~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-08 16:18:27,902 INFO L280 TraceCheckUtils]: 64: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p1~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-08 16:18:27,902 INFO L280 TraceCheckUtils]: 65: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p2~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-08 16:18:27,903 INFO L280 TraceCheckUtils]: 66: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p3~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-08 16:18:27,903 INFO L280 TraceCheckUtils]: 67: Hoare triple {12661#(= 0 main_~p4~0)} assume 0 != ~p4~0; {12658#false} is VALID [2020-07-08 16:18:27,904 INFO L280 TraceCheckUtils]: 68: Hoare triple {12658#false} assume 1 != ~lk4~0; {12658#false} is VALID [2020-07-08 16:18:27,904 INFO L280 TraceCheckUtils]: 69: Hoare triple {12658#false} assume !false; {12658#false} is VALID [2020-07-08 16:18:27,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:18:27,906 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:18:27,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464179974] [2020-07-08 16:18:27,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:18:27,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:18:27,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637433565] [2020-07-08 16:18:27,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-08 16:18:27,907 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:18:27,907 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:18:27,967 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:27,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:18:27,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:18:27,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:18:27,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:18:27,969 INFO L87 Difference]: Start difference. First operand 479 states and 646 transitions. Second operand 3 states. [2020-07-08 16:18:29,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:29,869 INFO L93 Difference]: Finished difference Result 1331 states and 1824 transitions. [2020-07-08 16:18:29,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:18:29,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-08 16:18:29,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:18:29,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:29,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2020-07-08 16:18:29,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:29,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2020-07-08 16:18:29,876 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 289 transitions. [2020-07-08 16:18:30,127 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 289 edges. 289 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:30,177 INFO L225 Difference]: With dead ends: 1331 [2020-07-08 16:18:30,177 INFO L226 Difference]: Without dead ends: 893 [2020-07-08 16:18:30,180 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 [2020-07-08 16:18:30,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-07-08 16:18:31,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 891. [2020-07-08 16:18:31,671 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:18:31,671 INFO L82 GeneralOperation]: Start isEquivalent. First operand 893 states. Second operand 891 states. [2020-07-08 16:18:31,672 INFO L74 IsIncluded]: Start isIncluded. First operand 893 states. Second operand 891 states. [2020-07-08 16:18:31,672 INFO L87 Difference]: Start difference. First operand 893 states. Second operand 891 states. [2020-07-08 16:18:31,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:31,717 INFO L93 Difference]: Finished difference Result 893 states and 1203 transitions. [2020-07-08 16:18:31,718 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1203 transitions. [2020-07-08 16:18:31,719 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:31,720 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:31,720 INFO L74 IsIncluded]: Start isIncluded. First operand 891 states. Second operand 893 states. [2020-07-08 16:18:31,720 INFO L87 Difference]: Start difference. First operand 891 states. Second operand 893 states. [2020-07-08 16:18:31,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:31,768 INFO L93 Difference]: Finished difference Result 893 states and 1203 transitions. [2020-07-08 16:18:31,768 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1203 transitions. [2020-07-08 16:18:31,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:31,770 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:31,771 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:18:31,771 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:18:31,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-07-08 16:18:31,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1202 transitions. [2020-07-08 16:18:31,822 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1202 transitions. Word has length 70 [2020-07-08 16:18:31,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:18:31,822 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1202 transitions. [2020-07-08 16:18:31,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:18:31,822 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 891 states and 1202 transitions. [2020-07-08 16:18:33,375 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 1202 edges. 1202 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:33,376 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1202 transitions. [2020-07-08 16:18:33,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-08 16:18:33,378 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:18:33,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:18:33,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-08 16:18:33,379 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:18:33,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:18:33,379 INFO L82 PathProgramCache]: Analyzing trace with hash 490835914, now seen corresponding path program 1 times [2020-07-08 16:18:33,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:18:33,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370640477] [2020-07-08 16:18:33,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:18:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:33,470 INFO L280 TraceCheckUtils]: 0: Hoare triple {18894#true} assume true; {18894#true} is VALID [2020-07-08 16:18:33,470 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {18894#true} {18894#true} #247#return; {18894#true} is VALID [2020-07-08 16:18:33,470 INFO L263 TraceCheckUtils]: 0: Hoare triple {18894#true} call ULTIMATE.init(); {18894#true} is VALID [2020-07-08 16:18:33,471 INFO L280 TraceCheckUtils]: 1: Hoare triple {18894#true} assume true; {18894#true} is VALID [2020-07-08 16:18:33,471 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {18894#true} {18894#true} #247#return; {18894#true} is VALID [2020-07-08 16:18:33,471 INFO L263 TraceCheckUtils]: 3: Hoare triple {18894#true} call #t~ret10 := main(); {18894#true} is VALID [2020-07-08 16:18:33,471 INFO L280 TraceCheckUtils]: 4: Hoare triple {18894#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {18894#true} is VALID [2020-07-08 16:18:33,472 INFO L280 TraceCheckUtils]: 5: Hoare triple {18894#true} ~p1~0 := #t~nondet0; {18894#true} is VALID [2020-07-08 16:18:33,472 INFO L280 TraceCheckUtils]: 6: Hoare triple {18894#true} havoc #t~nondet0; {18894#true} is VALID [2020-07-08 16:18:33,472 INFO L280 TraceCheckUtils]: 7: Hoare triple {18894#true} havoc ~lk1~0; {18894#true} is VALID [2020-07-08 16:18:33,472 INFO L280 TraceCheckUtils]: 8: Hoare triple {18894#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {18894#true} is VALID [2020-07-08 16:18:33,472 INFO L280 TraceCheckUtils]: 9: Hoare triple {18894#true} ~p2~0 := #t~nondet1; {18894#true} is VALID [2020-07-08 16:18:33,473 INFO L280 TraceCheckUtils]: 10: Hoare triple {18894#true} havoc #t~nondet1; {18894#true} is VALID [2020-07-08 16:18:33,473 INFO L280 TraceCheckUtils]: 11: Hoare triple {18894#true} havoc ~lk2~0; {18894#true} is VALID [2020-07-08 16:18:33,473 INFO L280 TraceCheckUtils]: 12: Hoare triple {18894#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {18894#true} is VALID [2020-07-08 16:18:33,473 INFO L280 TraceCheckUtils]: 13: Hoare triple {18894#true} ~p3~0 := #t~nondet2; {18894#true} is VALID [2020-07-08 16:18:33,474 INFO L280 TraceCheckUtils]: 14: Hoare triple {18894#true} havoc #t~nondet2; {18894#true} is VALID [2020-07-08 16:18:33,474 INFO L280 TraceCheckUtils]: 15: Hoare triple {18894#true} havoc ~lk3~0; {18894#true} is VALID [2020-07-08 16:18:33,474 INFO L280 TraceCheckUtils]: 16: Hoare triple {18894#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {18894#true} is VALID [2020-07-08 16:18:33,474 INFO L280 TraceCheckUtils]: 17: Hoare triple {18894#true} ~p4~0 := #t~nondet3; {18894#true} is VALID [2020-07-08 16:18:33,474 INFO L280 TraceCheckUtils]: 18: Hoare triple {18894#true} havoc #t~nondet3; {18894#true} is VALID [2020-07-08 16:18:33,475 INFO L280 TraceCheckUtils]: 19: Hoare triple {18894#true} havoc ~lk4~0; {18894#true} is VALID [2020-07-08 16:18:33,475 INFO L280 TraceCheckUtils]: 20: Hoare triple {18894#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {18894#true} is VALID [2020-07-08 16:18:33,475 INFO L280 TraceCheckUtils]: 21: Hoare triple {18894#true} ~p5~0 := #t~nondet4; {18894#true} is VALID [2020-07-08 16:18:33,481 INFO L280 TraceCheckUtils]: 22: Hoare triple {18894#true} havoc #t~nondet4; {18894#true} is VALID [2020-07-08 16:18:33,482 INFO L280 TraceCheckUtils]: 23: Hoare triple {18894#true} havoc ~lk5~0; {18894#true} is VALID [2020-07-08 16:18:33,482 INFO L280 TraceCheckUtils]: 24: Hoare triple {18894#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {18894#true} is VALID [2020-07-08 16:18:33,482 INFO L280 TraceCheckUtils]: 25: Hoare triple {18894#true} ~p6~0 := #t~nondet5; {18894#true} is VALID [2020-07-08 16:18:33,483 INFO L280 TraceCheckUtils]: 26: Hoare triple {18894#true} havoc #t~nondet5; {18894#true} is VALID [2020-07-08 16:18:33,483 INFO L280 TraceCheckUtils]: 27: Hoare triple {18894#true} havoc ~lk6~0; {18894#true} is VALID [2020-07-08 16:18:33,486 INFO L280 TraceCheckUtils]: 28: Hoare triple {18894#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {18894#true} is VALID [2020-07-08 16:18:33,487 INFO L280 TraceCheckUtils]: 29: Hoare triple {18894#true} ~p7~0 := #t~nondet6; {18894#true} is VALID [2020-07-08 16:18:33,487 INFO L280 TraceCheckUtils]: 30: Hoare triple {18894#true} havoc #t~nondet6; {18894#true} is VALID [2020-07-08 16:18:33,487 INFO L280 TraceCheckUtils]: 31: Hoare triple {18894#true} havoc ~lk7~0; {18894#true} is VALID [2020-07-08 16:18:33,488 INFO L280 TraceCheckUtils]: 32: Hoare triple {18894#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {18894#true} is VALID [2020-07-08 16:18:33,488 INFO L280 TraceCheckUtils]: 33: Hoare triple {18894#true} ~p8~0 := #t~nondet7; {18894#true} is VALID [2020-07-08 16:18:33,488 INFO L280 TraceCheckUtils]: 34: Hoare triple {18894#true} havoc #t~nondet7; {18894#true} is VALID [2020-07-08 16:18:33,489 INFO L280 TraceCheckUtils]: 35: Hoare triple {18894#true} havoc ~lk8~0; {18894#true} is VALID [2020-07-08 16:18:33,489 INFO L280 TraceCheckUtils]: 36: Hoare triple {18894#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {18894#true} is VALID [2020-07-08 16:18:33,492 INFO L280 TraceCheckUtils]: 37: Hoare triple {18894#true} ~p9~0 := #t~nondet8; {18894#true} is VALID [2020-07-08 16:18:33,493 INFO L280 TraceCheckUtils]: 38: Hoare triple {18894#true} havoc #t~nondet8; {18894#true} is VALID [2020-07-08 16:18:33,493 INFO L280 TraceCheckUtils]: 39: Hoare triple {18894#true} havoc ~lk9~0; {18894#true} is VALID [2020-07-08 16:18:33,493 INFO L280 TraceCheckUtils]: 40: Hoare triple {18894#true} havoc ~cond~0; {18894#true} is VALID [2020-07-08 16:18:33,494 INFO L280 TraceCheckUtils]: 41: Hoare triple {18894#true} assume !false; {18894#true} is VALID [2020-07-08 16:18:33,496 INFO L280 TraceCheckUtils]: 42: Hoare triple {18894#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {18894#true} is VALID [2020-07-08 16:18:33,497 INFO L280 TraceCheckUtils]: 43: Hoare triple {18894#true} ~cond~0 := #t~nondet9; {18894#true} is VALID [2020-07-08 16:18:33,497 INFO L280 TraceCheckUtils]: 44: Hoare triple {18894#true} havoc #t~nondet9; {18894#true} is VALID [2020-07-08 16:18:33,497 INFO L280 TraceCheckUtils]: 45: Hoare triple {18894#true} assume !(0 == ~cond~0); {18894#true} is VALID [2020-07-08 16:18:33,498 INFO L280 TraceCheckUtils]: 46: Hoare triple {18894#true} ~lk1~0 := 0; {18894#true} is VALID [2020-07-08 16:18:33,498 INFO L280 TraceCheckUtils]: 47: Hoare triple {18894#true} ~lk2~0 := 0; {18894#true} is VALID [2020-07-08 16:18:33,501 INFO L280 TraceCheckUtils]: 48: Hoare triple {18894#true} ~lk3~0 := 0; {18894#true} is VALID [2020-07-08 16:18:33,502 INFO L280 TraceCheckUtils]: 49: Hoare triple {18894#true} ~lk4~0 := 0; {18894#true} is VALID [2020-07-08 16:18:33,502 INFO L280 TraceCheckUtils]: 50: Hoare triple {18894#true} ~lk5~0 := 0; {18894#true} is VALID [2020-07-08 16:18:33,502 INFO L280 TraceCheckUtils]: 51: Hoare triple {18894#true} ~lk6~0 := 0; {18894#true} is VALID [2020-07-08 16:18:33,503 INFO L280 TraceCheckUtils]: 52: Hoare triple {18894#true} ~lk7~0 := 0; {18894#true} is VALID [2020-07-08 16:18:33,503 INFO L280 TraceCheckUtils]: 53: Hoare triple {18894#true} ~lk8~0 := 0; {18894#true} is VALID [2020-07-08 16:18:33,503 INFO L280 TraceCheckUtils]: 54: Hoare triple {18894#true} ~lk9~0 := 0; {18894#true} is VALID [2020-07-08 16:18:33,504 INFO L280 TraceCheckUtils]: 55: Hoare triple {18894#true} assume !(0 != ~p1~0); {18894#true} is VALID [2020-07-08 16:18:33,504 INFO L280 TraceCheckUtils]: 56: Hoare triple {18894#true} assume !(0 != ~p2~0); {18894#true} is VALID [2020-07-08 16:18:33,504 INFO L280 TraceCheckUtils]: 57: Hoare triple {18894#true} assume !(0 != ~p3~0); {18894#true} is VALID [2020-07-08 16:18:33,505 INFO L280 TraceCheckUtils]: 58: Hoare triple {18894#true} assume 0 != ~p4~0; {18894#true} is VALID [2020-07-08 16:18:33,515 INFO L280 TraceCheckUtils]: 59: Hoare triple {18894#true} ~lk4~0 := 1; {18898#(= 1 main_~lk4~0)} is VALID [2020-07-08 16:18:33,516 INFO L280 TraceCheckUtils]: 60: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p5~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-08 16:18:33,517 INFO L280 TraceCheckUtils]: 61: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p6~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-08 16:18:33,519 INFO L280 TraceCheckUtils]: 62: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p7~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-08 16:18:33,519 INFO L280 TraceCheckUtils]: 63: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p8~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-08 16:18:33,520 INFO L280 TraceCheckUtils]: 64: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p9~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-08 16:18:33,521 INFO L280 TraceCheckUtils]: 65: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p1~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-08 16:18:33,522 INFO L280 TraceCheckUtils]: 66: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p2~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-08 16:18:33,523 INFO L280 TraceCheckUtils]: 67: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p3~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-08 16:18:33,523 INFO L280 TraceCheckUtils]: 68: Hoare triple {18898#(= 1 main_~lk4~0)} assume 0 != ~p4~0; {18898#(= 1 main_~lk4~0)} is VALID [2020-07-08 16:18:33,524 INFO L280 TraceCheckUtils]: 69: Hoare triple {18898#(= 1 main_~lk4~0)} assume 1 != ~lk4~0; {18895#false} is VALID [2020-07-08 16:18:33,525 INFO L280 TraceCheckUtils]: 70: Hoare triple {18895#false} assume !false; {18895#false} is VALID [2020-07-08 16:18:33,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:18:33,531 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:18:33,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370640477] [2020-07-08 16:18:33,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:18:33,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:18:33,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070778695] [2020-07-08 16:18:33,533 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-08 16:18:33,534 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:18:33,534 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:18:33,620 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:33,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:18:33,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:18:33,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:18:33,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:18:33,621 INFO L87 Difference]: Start difference. First operand 891 states and 1202 transitions. Second operand 3 states. [2020-07-08 16:18:35,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:35,869 INFO L93 Difference]: Finished difference Result 1087 states and 1476 transitions. [2020-07-08 16:18:35,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:18:35,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-08 16:18:35,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:18:35,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:35,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2020-07-08 16:18:35,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:35,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2020-07-08 16:18:35,874 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 189 transitions. [2020-07-08 16:18:36,033 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:36,121 INFO L225 Difference]: With dead ends: 1087 [2020-07-08 16:18:36,121 INFO L226 Difference]: Without dead ends: 1085 [2020-07-08 16:18:36,122 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 [2020-07-08 16:18:36,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2020-07-08 16:18:37,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 891. [2020-07-08 16:18:37,724 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:18:37,724 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1085 states. Second operand 891 states. [2020-07-08 16:18:37,724 INFO L74 IsIncluded]: Start isIncluded. First operand 1085 states. Second operand 891 states. [2020-07-08 16:18:37,724 INFO L87 Difference]: Start difference. First operand 1085 states. Second operand 891 states. [2020-07-08 16:18:37,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:37,788 INFO L93 Difference]: Finished difference Result 1085 states and 1467 transitions. [2020-07-08 16:18:37,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1467 transitions. [2020-07-08 16:18:37,790 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:37,791 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:37,791 INFO L74 IsIncluded]: Start isIncluded. First operand 891 states. Second operand 1085 states. [2020-07-08 16:18:37,791 INFO L87 Difference]: Start difference. First operand 891 states. Second operand 1085 states. [2020-07-08 16:18:37,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:37,860 INFO L93 Difference]: Finished difference Result 1085 states and 1467 transitions. [2020-07-08 16:18:37,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1467 transitions. [2020-07-08 16:18:37,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:37,863 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:37,863 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:18:37,863 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:18:37,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-07-08 16:18:37,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1194 transitions. [2020-07-08 16:18:37,914 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1194 transitions. Word has length 71 [2020-07-08 16:18:37,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:18:37,914 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1194 transitions. [2020-07-08 16:18:37,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:18:37,915 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 891 states and 1194 transitions. [2020-07-08 16:18:39,322 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 1194 edges. 1194 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:39,323 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1194 transitions. [2020-07-08 16:18:39,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-08 16:18:39,324 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:18:39,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:18:39,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-08 16:18:39,325 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:18:39,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:18:39,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1665621348, now seen corresponding path program 1 times [2020-07-08 16:18:39,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:18:39,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852926094] [2020-07-08 16:18:39,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:18:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:39,383 INFO L280 TraceCheckUtils]: 0: Hoare triple {25027#true} assume true; {25027#true} is VALID [2020-07-08 16:18:39,383 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {25027#true} {25027#true} #247#return; {25027#true} is VALID [2020-07-08 16:18:39,384 INFO L263 TraceCheckUtils]: 0: Hoare triple {25027#true} call ULTIMATE.init(); {25027#true} is VALID [2020-07-08 16:18:39,384 INFO L280 TraceCheckUtils]: 1: Hoare triple {25027#true} assume true; {25027#true} is VALID [2020-07-08 16:18:39,384 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {25027#true} {25027#true} #247#return; {25027#true} is VALID [2020-07-08 16:18:39,384 INFO L263 TraceCheckUtils]: 3: Hoare triple {25027#true} call #t~ret10 := main(); {25027#true} is VALID [2020-07-08 16:18:39,384 INFO L280 TraceCheckUtils]: 4: Hoare triple {25027#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {25027#true} is VALID [2020-07-08 16:18:39,385 INFO L280 TraceCheckUtils]: 5: Hoare triple {25027#true} ~p1~0 := #t~nondet0; {25027#true} is VALID [2020-07-08 16:18:39,385 INFO L280 TraceCheckUtils]: 6: Hoare triple {25027#true} havoc #t~nondet0; {25027#true} is VALID [2020-07-08 16:18:39,385 INFO L280 TraceCheckUtils]: 7: Hoare triple {25027#true} havoc ~lk1~0; {25027#true} is VALID [2020-07-08 16:18:39,385 INFO L280 TraceCheckUtils]: 8: Hoare triple {25027#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {25027#true} is VALID [2020-07-08 16:18:39,385 INFO L280 TraceCheckUtils]: 9: Hoare triple {25027#true} ~p2~0 := #t~nondet1; {25027#true} is VALID [2020-07-08 16:18:39,385 INFO L280 TraceCheckUtils]: 10: Hoare triple {25027#true} havoc #t~nondet1; {25027#true} is VALID [2020-07-08 16:18:39,386 INFO L280 TraceCheckUtils]: 11: Hoare triple {25027#true} havoc ~lk2~0; {25027#true} is VALID [2020-07-08 16:18:39,386 INFO L280 TraceCheckUtils]: 12: Hoare triple {25027#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {25027#true} is VALID [2020-07-08 16:18:39,386 INFO L280 TraceCheckUtils]: 13: Hoare triple {25027#true} ~p3~0 := #t~nondet2; {25027#true} is VALID [2020-07-08 16:18:39,386 INFO L280 TraceCheckUtils]: 14: Hoare triple {25027#true} havoc #t~nondet2; {25027#true} is VALID [2020-07-08 16:18:39,386 INFO L280 TraceCheckUtils]: 15: Hoare triple {25027#true} havoc ~lk3~0; {25027#true} is VALID [2020-07-08 16:18:39,386 INFO L280 TraceCheckUtils]: 16: Hoare triple {25027#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {25027#true} is VALID [2020-07-08 16:18:39,387 INFO L280 TraceCheckUtils]: 17: Hoare triple {25027#true} ~p4~0 := #t~nondet3; {25027#true} is VALID [2020-07-08 16:18:39,387 INFO L280 TraceCheckUtils]: 18: Hoare triple {25027#true} havoc #t~nondet3; {25027#true} is VALID [2020-07-08 16:18:39,387 INFO L280 TraceCheckUtils]: 19: Hoare triple {25027#true} havoc ~lk4~0; {25027#true} is VALID [2020-07-08 16:18:39,387 INFO L280 TraceCheckUtils]: 20: Hoare triple {25027#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {25027#true} is VALID [2020-07-08 16:18:39,387 INFO L280 TraceCheckUtils]: 21: Hoare triple {25027#true} ~p5~0 := #t~nondet4; {25027#true} is VALID [2020-07-08 16:18:39,388 INFO L280 TraceCheckUtils]: 22: Hoare triple {25027#true} havoc #t~nondet4; {25027#true} is VALID [2020-07-08 16:18:39,388 INFO L280 TraceCheckUtils]: 23: Hoare triple {25027#true} havoc ~lk5~0; {25027#true} is VALID [2020-07-08 16:18:39,388 INFO L280 TraceCheckUtils]: 24: Hoare triple {25027#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {25027#true} is VALID [2020-07-08 16:18:39,388 INFO L280 TraceCheckUtils]: 25: Hoare triple {25027#true} ~p6~0 := #t~nondet5; {25027#true} is VALID [2020-07-08 16:18:39,388 INFO L280 TraceCheckUtils]: 26: Hoare triple {25027#true} havoc #t~nondet5; {25027#true} is VALID [2020-07-08 16:18:39,389 INFO L280 TraceCheckUtils]: 27: Hoare triple {25027#true} havoc ~lk6~0; {25027#true} is VALID [2020-07-08 16:18:39,389 INFO L280 TraceCheckUtils]: 28: Hoare triple {25027#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {25027#true} is VALID [2020-07-08 16:18:39,389 INFO L280 TraceCheckUtils]: 29: Hoare triple {25027#true} ~p7~0 := #t~nondet6; {25027#true} is VALID [2020-07-08 16:18:39,389 INFO L280 TraceCheckUtils]: 30: Hoare triple {25027#true} havoc #t~nondet6; {25027#true} is VALID [2020-07-08 16:18:39,389 INFO L280 TraceCheckUtils]: 31: Hoare triple {25027#true} havoc ~lk7~0; {25027#true} is VALID [2020-07-08 16:18:39,390 INFO L280 TraceCheckUtils]: 32: Hoare triple {25027#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {25027#true} is VALID [2020-07-08 16:18:39,390 INFO L280 TraceCheckUtils]: 33: Hoare triple {25027#true} ~p8~0 := #t~nondet7; {25027#true} is VALID [2020-07-08 16:18:39,390 INFO L280 TraceCheckUtils]: 34: Hoare triple {25027#true} havoc #t~nondet7; {25027#true} is VALID [2020-07-08 16:18:39,390 INFO L280 TraceCheckUtils]: 35: Hoare triple {25027#true} havoc ~lk8~0; {25027#true} is VALID [2020-07-08 16:18:39,390 INFO L280 TraceCheckUtils]: 36: Hoare triple {25027#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {25027#true} is VALID [2020-07-08 16:18:39,391 INFO L280 TraceCheckUtils]: 37: Hoare triple {25027#true} ~p9~0 := #t~nondet8; {25027#true} is VALID [2020-07-08 16:18:39,391 INFO L280 TraceCheckUtils]: 38: Hoare triple {25027#true} havoc #t~nondet8; {25027#true} is VALID [2020-07-08 16:18:39,391 INFO L280 TraceCheckUtils]: 39: Hoare triple {25027#true} havoc ~lk9~0; {25027#true} is VALID [2020-07-08 16:18:39,391 INFO L280 TraceCheckUtils]: 40: Hoare triple {25027#true} havoc ~cond~0; {25027#true} is VALID [2020-07-08 16:18:39,391 INFO L280 TraceCheckUtils]: 41: Hoare triple {25027#true} assume !false; {25027#true} is VALID [2020-07-08 16:18:39,391 INFO L280 TraceCheckUtils]: 42: Hoare triple {25027#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {25027#true} is VALID [2020-07-08 16:18:39,392 INFO L280 TraceCheckUtils]: 43: Hoare triple {25027#true} ~cond~0 := #t~nondet9; {25027#true} is VALID [2020-07-08 16:18:39,392 INFO L280 TraceCheckUtils]: 44: Hoare triple {25027#true} havoc #t~nondet9; {25027#true} is VALID [2020-07-08 16:18:39,392 INFO L280 TraceCheckUtils]: 45: Hoare triple {25027#true} assume !(0 == ~cond~0); {25027#true} is VALID [2020-07-08 16:18:39,392 INFO L280 TraceCheckUtils]: 46: Hoare triple {25027#true} ~lk1~0 := 0; {25027#true} is VALID [2020-07-08 16:18:39,392 INFO L280 TraceCheckUtils]: 47: Hoare triple {25027#true} ~lk2~0 := 0; {25027#true} is VALID [2020-07-08 16:18:39,393 INFO L280 TraceCheckUtils]: 48: Hoare triple {25027#true} ~lk3~0 := 0; {25027#true} is VALID [2020-07-08 16:18:39,393 INFO L280 TraceCheckUtils]: 49: Hoare triple {25027#true} ~lk4~0 := 0; {25027#true} is VALID [2020-07-08 16:18:39,393 INFO L280 TraceCheckUtils]: 50: Hoare triple {25027#true} ~lk5~0 := 0; {25027#true} is VALID [2020-07-08 16:18:39,393 INFO L280 TraceCheckUtils]: 51: Hoare triple {25027#true} ~lk6~0 := 0; {25027#true} is VALID [2020-07-08 16:18:39,393 INFO L280 TraceCheckUtils]: 52: Hoare triple {25027#true} ~lk7~0 := 0; {25027#true} is VALID [2020-07-08 16:18:39,394 INFO L280 TraceCheckUtils]: 53: Hoare triple {25027#true} ~lk8~0 := 0; {25027#true} is VALID [2020-07-08 16:18:39,394 INFO L280 TraceCheckUtils]: 54: Hoare triple {25027#true} ~lk9~0 := 0; {25027#true} is VALID [2020-07-08 16:18:39,394 INFO L280 TraceCheckUtils]: 55: Hoare triple {25027#true} assume !(0 != ~p1~0); {25027#true} is VALID [2020-07-08 16:18:39,394 INFO L280 TraceCheckUtils]: 56: Hoare triple {25027#true} assume !(0 != ~p2~0); {25027#true} is VALID [2020-07-08 16:18:39,394 INFO L280 TraceCheckUtils]: 57: Hoare triple {25027#true} assume !(0 != ~p3~0); {25027#true} is VALID [2020-07-08 16:18:39,395 INFO L280 TraceCheckUtils]: 58: Hoare triple {25027#true} assume !(0 != ~p4~0); {25027#true} is VALID [2020-07-08 16:18:39,395 INFO L280 TraceCheckUtils]: 59: Hoare triple {25027#true} assume !(0 != ~p5~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-08 16:18:39,396 INFO L280 TraceCheckUtils]: 60: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p6~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-08 16:18:39,396 INFO L280 TraceCheckUtils]: 61: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p7~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-08 16:18:39,398 INFO L280 TraceCheckUtils]: 62: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p8~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-08 16:18:39,398 INFO L280 TraceCheckUtils]: 63: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p9~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-08 16:18:39,399 INFO L280 TraceCheckUtils]: 64: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p1~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-08 16:18:39,399 INFO L280 TraceCheckUtils]: 65: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p2~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-08 16:18:39,400 INFO L280 TraceCheckUtils]: 66: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p3~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-08 16:18:39,400 INFO L280 TraceCheckUtils]: 67: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p4~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-08 16:18:39,401 INFO L280 TraceCheckUtils]: 68: Hoare triple {25031#(= 0 main_~p5~0)} assume 0 != ~p5~0; {25028#false} is VALID [2020-07-08 16:18:39,401 INFO L280 TraceCheckUtils]: 69: Hoare triple {25028#false} assume 1 != ~lk5~0; {25028#false} is VALID [2020-07-08 16:18:39,401 INFO L280 TraceCheckUtils]: 70: Hoare triple {25028#false} assume !false; {25028#false} is VALID [2020-07-08 16:18:39,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:18:39,404 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:18:39,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852926094] [2020-07-08 16:18:39,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:18:39,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:18:39,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156967071] [2020-07-08 16:18:39,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-08 16:18:39,406 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:18:39,406 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:18:39,466 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:39,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:18:39,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:18:39,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:18:39,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:18:39,467 INFO L87 Difference]: Start difference. First operand 891 states and 1194 transitions. Second operand 3 states. [2020-07-08 16:18:43,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:43,628 INFO L93 Difference]: Finished difference Result 2543 states and 3436 transitions. [2020-07-08 16:18:43,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:18:43,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-08 16:18:43,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:18:43,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:43,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-08 16:18:43,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:43,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-08 16:18:43,636 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 286 transitions. [2020-07-08 16:18:43,884 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 286 edges. 286 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:44,012 INFO L225 Difference]: With dead ends: 2543 [2020-07-08 16:18:44,012 INFO L226 Difference]: Without dead ends: 1693 [2020-07-08 16:18:44,014 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 [2020-07-08 16:18:44,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2020-07-08 16:18:47,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1691. [2020-07-08 16:18:47,390 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:18:47,390 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1693 states. Second operand 1691 states. [2020-07-08 16:18:47,391 INFO L74 IsIncluded]: Start isIncluded. First operand 1693 states. Second operand 1691 states. [2020-07-08 16:18:47,391 INFO L87 Difference]: Start difference. First operand 1693 states. Second operand 1691 states. [2020-07-08 16:18:47,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:47,545 INFO L93 Difference]: Finished difference Result 1693 states and 2251 transitions. [2020-07-08 16:18:47,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2251 transitions. [2020-07-08 16:18:47,548 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:47,549 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:47,549 INFO L74 IsIncluded]: Start isIncluded. First operand 1691 states. Second operand 1693 states. [2020-07-08 16:18:47,549 INFO L87 Difference]: Start difference. First operand 1691 states. Second operand 1693 states. [2020-07-08 16:18:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:47,726 INFO L93 Difference]: Finished difference Result 1693 states and 2251 transitions. [2020-07-08 16:18:47,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2251 transitions. [2020-07-08 16:18:47,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:18:47,729 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:18:47,730 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:18:47,730 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:18:47,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-07-08 16:18:47,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2250 transitions. [2020-07-08 16:18:47,904 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2250 transitions. Word has length 71 [2020-07-08 16:18:47,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:18:47,905 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2250 transitions. [2020-07-08 16:18:47,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:18:47,905 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 1691 states and 2250 transitions. [2020-07-08 16:18:50,631 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2250 edges. 2250 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:50,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2250 transitions. [2020-07-08 16:18:50,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-07-08 16:18:50,633 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:18:50,633 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:18:50,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-08 16:18:50,634 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:18:50,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:18:50,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1204002519, now seen corresponding path program 1 times [2020-07-08 16:18:50,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:18:50,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788155075] [2020-07-08 16:18:50,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:18:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:18:50,670 INFO L280 TraceCheckUtils]: 0: Hoare triple {36888#true} assume true; {36888#true} is VALID [2020-07-08 16:18:50,670 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {36888#true} {36888#true} #247#return; {36888#true} is VALID [2020-07-08 16:18:50,670 INFO L263 TraceCheckUtils]: 0: Hoare triple {36888#true} call ULTIMATE.init(); {36888#true} is VALID [2020-07-08 16:18:50,670 INFO L280 TraceCheckUtils]: 1: Hoare triple {36888#true} assume true; {36888#true} is VALID [2020-07-08 16:18:50,670 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36888#true} {36888#true} #247#return; {36888#true} is VALID [2020-07-08 16:18:50,671 INFO L263 TraceCheckUtils]: 3: Hoare triple {36888#true} call #t~ret10 := main(); {36888#true} is VALID [2020-07-08 16:18:50,671 INFO L280 TraceCheckUtils]: 4: Hoare triple {36888#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {36888#true} is VALID [2020-07-08 16:18:50,671 INFO L280 TraceCheckUtils]: 5: Hoare triple {36888#true} ~p1~0 := #t~nondet0; {36888#true} is VALID [2020-07-08 16:18:50,671 INFO L280 TraceCheckUtils]: 6: Hoare triple {36888#true} havoc #t~nondet0; {36888#true} is VALID [2020-07-08 16:18:50,671 INFO L280 TraceCheckUtils]: 7: Hoare triple {36888#true} havoc ~lk1~0; {36888#true} is VALID [2020-07-08 16:18:50,671 INFO L280 TraceCheckUtils]: 8: Hoare triple {36888#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {36888#true} is VALID [2020-07-08 16:18:50,671 INFO L280 TraceCheckUtils]: 9: Hoare triple {36888#true} ~p2~0 := #t~nondet1; {36888#true} is VALID [2020-07-08 16:18:50,671 INFO L280 TraceCheckUtils]: 10: Hoare triple {36888#true} havoc #t~nondet1; {36888#true} is VALID [2020-07-08 16:18:50,672 INFO L280 TraceCheckUtils]: 11: Hoare triple {36888#true} havoc ~lk2~0; {36888#true} is VALID [2020-07-08 16:18:50,672 INFO L280 TraceCheckUtils]: 12: Hoare triple {36888#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {36888#true} is VALID [2020-07-08 16:18:50,672 INFO L280 TraceCheckUtils]: 13: Hoare triple {36888#true} ~p3~0 := #t~nondet2; {36888#true} is VALID [2020-07-08 16:18:50,672 INFO L280 TraceCheckUtils]: 14: Hoare triple {36888#true} havoc #t~nondet2; {36888#true} is VALID [2020-07-08 16:18:50,672 INFO L280 TraceCheckUtils]: 15: Hoare triple {36888#true} havoc ~lk3~0; {36888#true} is VALID [2020-07-08 16:18:50,672 INFO L280 TraceCheckUtils]: 16: Hoare triple {36888#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {36888#true} is VALID [2020-07-08 16:18:50,672 INFO L280 TraceCheckUtils]: 17: Hoare triple {36888#true} ~p4~0 := #t~nondet3; {36888#true} is VALID [2020-07-08 16:18:50,673 INFO L280 TraceCheckUtils]: 18: Hoare triple {36888#true} havoc #t~nondet3; {36888#true} is VALID [2020-07-08 16:18:50,673 INFO L280 TraceCheckUtils]: 19: Hoare triple {36888#true} havoc ~lk4~0; {36888#true} is VALID [2020-07-08 16:18:50,673 INFO L280 TraceCheckUtils]: 20: Hoare triple {36888#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {36888#true} is VALID [2020-07-08 16:18:50,673 INFO L280 TraceCheckUtils]: 21: Hoare triple {36888#true} ~p5~0 := #t~nondet4; {36888#true} is VALID [2020-07-08 16:18:50,673 INFO L280 TraceCheckUtils]: 22: Hoare triple {36888#true} havoc #t~nondet4; {36888#true} is VALID [2020-07-08 16:18:50,673 INFO L280 TraceCheckUtils]: 23: Hoare triple {36888#true} havoc ~lk5~0; {36888#true} is VALID [2020-07-08 16:18:50,673 INFO L280 TraceCheckUtils]: 24: Hoare triple {36888#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {36888#true} is VALID [2020-07-08 16:18:50,674 INFO L280 TraceCheckUtils]: 25: Hoare triple {36888#true} ~p6~0 := #t~nondet5; {36888#true} is VALID [2020-07-08 16:18:50,674 INFO L280 TraceCheckUtils]: 26: Hoare triple {36888#true} havoc #t~nondet5; {36888#true} is VALID [2020-07-08 16:18:50,674 INFO L280 TraceCheckUtils]: 27: Hoare triple {36888#true} havoc ~lk6~0; {36888#true} is VALID [2020-07-08 16:18:50,674 INFO L280 TraceCheckUtils]: 28: Hoare triple {36888#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {36888#true} is VALID [2020-07-08 16:18:50,674 INFO L280 TraceCheckUtils]: 29: Hoare triple {36888#true} ~p7~0 := #t~nondet6; {36888#true} is VALID [2020-07-08 16:18:50,674 INFO L280 TraceCheckUtils]: 30: Hoare triple {36888#true} havoc #t~nondet6; {36888#true} is VALID [2020-07-08 16:18:50,674 INFO L280 TraceCheckUtils]: 31: Hoare triple {36888#true} havoc ~lk7~0; {36888#true} is VALID [2020-07-08 16:18:50,674 INFO L280 TraceCheckUtils]: 32: Hoare triple {36888#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {36888#true} is VALID [2020-07-08 16:18:50,675 INFO L280 TraceCheckUtils]: 33: Hoare triple {36888#true} ~p8~0 := #t~nondet7; {36888#true} is VALID [2020-07-08 16:18:50,675 INFO L280 TraceCheckUtils]: 34: Hoare triple {36888#true} havoc #t~nondet7; {36888#true} is VALID [2020-07-08 16:18:50,675 INFO L280 TraceCheckUtils]: 35: Hoare triple {36888#true} havoc ~lk8~0; {36888#true} is VALID [2020-07-08 16:18:50,675 INFO L280 TraceCheckUtils]: 36: Hoare triple {36888#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {36888#true} is VALID [2020-07-08 16:18:50,675 INFO L280 TraceCheckUtils]: 37: Hoare triple {36888#true} ~p9~0 := #t~nondet8; {36888#true} is VALID [2020-07-08 16:18:50,675 INFO L280 TraceCheckUtils]: 38: Hoare triple {36888#true} havoc #t~nondet8; {36888#true} is VALID [2020-07-08 16:18:50,675 INFO L280 TraceCheckUtils]: 39: Hoare triple {36888#true} havoc ~lk9~0; {36888#true} is VALID [2020-07-08 16:18:50,676 INFO L280 TraceCheckUtils]: 40: Hoare triple {36888#true} havoc ~cond~0; {36888#true} is VALID [2020-07-08 16:18:50,676 INFO L280 TraceCheckUtils]: 41: Hoare triple {36888#true} assume !false; {36888#true} is VALID [2020-07-08 16:18:50,676 INFO L280 TraceCheckUtils]: 42: Hoare triple {36888#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {36888#true} is VALID [2020-07-08 16:18:50,676 INFO L280 TraceCheckUtils]: 43: Hoare triple {36888#true} ~cond~0 := #t~nondet9; {36888#true} is VALID [2020-07-08 16:18:50,676 INFO L280 TraceCheckUtils]: 44: Hoare triple {36888#true} havoc #t~nondet9; {36888#true} is VALID [2020-07-08 16:18:50,676 INFO L280 TraceCheckUtils]: 45: Hoare triple {36888#true} assume !(0 == ~cond~0); {36888#true} is VALID [2020-07-08 16:18:50,676 INFO L280 TraceCheckUtils]: 46: Hoare triple {36888#true} ~lk1~0 := 0; {36888#true} is VALID [2020-07-08 16:18:50,677 INFO L280 TraceCheckUtils]: 47: Hoare triple {36888#true} ~lk2~0 := 0; {36888#true} is VALID [2020-07-08 16:18:50,677 INFO L280 TraceCheckUtils]: 48: Hoare triple {36888#true} ~lk3~0 := 0; {36888#true} is VALID [2020-07-08 16:18:50,677 INFO L280 TraceCheckUtils]: 49: Hoare triple {36888#true} ~lk4~0 := 0; {36888#true} is VALID [2020-07-08 16:18:50,677 INFO L280 TraceCheckUtils]: 50: Hoare triple {36888#true} ~lk5~0 := 0; {36888#true} is VALID [2020-07-08 16:18:50,677 INFO L280 TraceCheckUtils]: 51: Hoare triple {36888#true} ~lk6~0 := 0; {36888#true} is VALID [2020-07-08 16:18:50,678 INFO L280 TraceCheckUtils]: 52: Hoare triple {36888#true} ~lk7~0 := 0; {36888#true} is VALID [2020-07-08 16:18:50,678 INFO L280 TraceCheckUtils]: 53: Hoare triple {36888#true} ~lk8~0 := 0; {36888#true} is VALID [2020-07-08 16:18:50,678 INFO L280 TraceCheckUtils]: 54: Hoare triple {36888#true} ~lk9~0 := 0; {36888#true} is VALID [2020-07-08 16:18:50,678 INFO L280 TraceCheckUtils]: 55: Hoare triple {36888#true} assume !(0 != ~p1~0); {36888#true} is VALID [2020-07-08 16:18:50,678 INFO L280 TraceCheckUtils]: 56: Hoare triple {36888#true} assume !(0 != ~p2~0); {36888#true} is VALID [2020-07-08 16:18:50,678 INFO L280 TraceCheckUtils]: 57: Hoare triple {36888#true} assume !(0 != ~p3~0); {36888#true} is VALID [2020-07-08 16:18:50,679 INFO L280 TraceCheckUtils]: 58: Hoare triple {36888#true} assume !(0 != ~p4~0); {36888#true} is VALID [2020-07-08 16:18:50,679 INFO L280 TraceCheckUtils]: 59: Hoare triple {36888#true} assume 0 != ~p5~0; {36888#true} is VALID [2020-07-08 16:18:50,681 INFO L280 TraceCheckUtils]: 60: Hoare triple {36888#true} ~lk5~0 := 1; {36892#(= 1 main_~lk5~0)} is VALID [2020-07-08 16:18:50,681 INFO L280 TraceCheckUtils]: 61: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p6~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-08 16:18:50,681 INFO L280 TraceCheckUtils]: 62: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p7~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-08 16:18:50,682 INFO L280 TraceCheckUtils]: 63: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p8~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-08 16:18:50,682 INFO L280 TraceCheckUtils]: 64: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p9~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-08 16:18:50,683 INFO L280 TraceCheckUtils]: 65: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p1~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-08 16:18:50,683 INFO L280 TraceCheckUtils]: 66: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p2~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-08 16:18:50,683 INFO L280 TraceCheckUtils]: 67: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p3~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-08 16:18:50,684 INFO L280 TraceCheckUtils]: 68: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p4~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-08 16:18:50,684 INFO L280 TraceCheckUtils]: 69: Hoare triple {36892#(= 1 main_~lk5~0)} assume 0 != ~p5~0; {36892#(= 1 main_~lk5~0)} is VALID [2020-07-08 16:18:50,685 INFO L280 TraceCheckUtils]: 70: Hoare triple {36892#(= 1 main_~lk5~0)} assume 1 != ~lk5~0; {36889#false} is VALID [2020-07-08 16:18:50,685 INFO L280 TraceCheckUtils]: 71: Hoare triple {36889#false} assume !false; {36889#false} is VALID [2020-07-08 16:18:50,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:18:50,687 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:18:50,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788155075] [2020-07-08 16:18:50,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:18:50,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:18:50,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486949391] [2020-07-08 16:18:50,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-08 16:18:50,688 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:18:50,689 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:18:50,748 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:50,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:18:50,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:18:50,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:18:50,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:18:50,749 INFO L87 Difference]: Start difference. First operand 1691 states and 2250 transitions. Second operand 3 states. [2020-07-08 16:18:55,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:18:55,756 INFO L93 Difference]: Finished difference Result 2047 states and 2732 transitions. [2020-07-08 16:18:55,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:18:55,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-08 16:18:55,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:18:55,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:55,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2020-07-08 16:18:55,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:18:55,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2020-07-08 16:18:55,765 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 185 transitions. [2020-07-08 16:18:55,913 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:18:56,120 INFO L225 Difference]: With dead ends: 2047 [2020-07-08 16:18:56,121 INFO L226 Difference]: Without dead ends: 2045 [2020-07-08 16:18:56,121 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 [2020-07-08 16:18:56,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2020-07-08 16:18:59,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1691. [2020-07-08 16:18:59,882 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:18:59,883 INFO L82 GeneralOperation]: Start isEquivalent. First operand 2045 states. Second operand 1691 states. [2020-07-08 16:18:59,883 INFO L74 IsIncluded]: Start isIncluded. First operand 2045 states. Second operand 1691 states. [2020-07-08 16:18:59,883 INFO L87 Difference]: Start difference. First operand 2045 states. Second operand 1691 states. [2020-07-08 16:19:00,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:19:00,006 INFO L93 Difference]: Finished difference Result 2045 states and 2715 transitions. [2020-07-08 16:19:00,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2715 transitions. [2020-07-08 16:19:00,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:19:00,010 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:19:00,010 INFO L74 IsIncluded]: Start isIncluded. First operand 1691 states. Second operand 2045 states. [2020-07-08 16:19:00,010 INFO L87 Difference]: Start difference. First operand 1691 states. Second operand 2045 states. [2020-07-08 16:19:00,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:19:00,162 INFO L93 Difference]: Finished difference Result 2045 states and 2715 transitions. [2020-07-08 16:19:00,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2715 transitions. [2020-07-08 16:19:00,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:19:00,166 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:19:00,166 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:19:00,166 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:19:00,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-07-08 16:19:00,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2234 transitions. [2020-07-08 16:19:00,263 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2234 transitions. Word has length 72 [2020-07-08 16:19:00,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:19:00,263 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2234 transitions. [2020-07-08 16:19:00,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:19:00,264 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 1691 states and 2234 transitions. [2020-07-08 16:19:02,992 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2234 edges. 2234 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:19:02,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2234 transitions. [2020-07-08 16:19:02,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-07-08 16:19:02,994 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:19:02,994 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:19:02,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-08 16:19:02,995 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:19:02,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:19:02,995 INFO L82 PathProgramCache]: Analyzing trace with hash 94899998, now seen corresponding path program 1 times [2020-07-08 16:19:02,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:19:02,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937920261] [2020-07-08 16:19:02,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:19:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:19:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:19:03,034 INFO L280 TraceCheckUtils]: 0: Hoare triple {48461#true} assume true; {48461#true} is VALID [2020-07-08 16:19:03,035 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {48461#true} {48461#true} #247#return; {48461#true} is VALID [2020-07-08 16:19:03,035 INFO L263 TraceCheckUtils]: 0: Hoare triple {48461#true} call ULTIMATE.init(); {48461#true} is VALID [2020-07-08 16:19:03,035 INFO L280 TraceCheckUtils]: 1: Hoare triple {48461#true} assume true; {48461#true} is VALID [2020-07-08 16:19:03,035 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {48461#true} {48461#true} #247#return; {48461#true} is VALID [2020-07-08 16:19:03,036 INFO L263 TraceCheckUtils]: 3: Hoare triple {48461#true} call #t~ret10 := main(); {48461#true} is VALID [2020-07-08 16:19:03,036 INFO L280 TraceCheckUtils]: 4: Hoare triple {48461#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {48461#true} is VALID [2020-07-08 16:19:03,036 INFO L280 TraceCheckUtils]: 5: Hoare triple {48461#true} ~p1~0 := #t~nondet0; {48461#true} is VALID [2020-07-08 16:19:03,036 INFO L280 TraceCheckUtils]: 6: Hoare triple {48461#true} havoc #t~nondet0; {48461#true} is VALID [2020-07-08 16:19:03,036 INFO L280 TraceCheckUtils]: 7: Hoare triple {48461#true} havoc ~lk1~0; {48461#true} is VALID [2020-07-08 16:19:03,037 INFO L280 TraceCheckUtils]: 8: Hoare triple {48461#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {48461#true} is VALID [2020-07-08 16:19:03,037 INFO L280 TraceCheckUtils]: 9: Hoare triple {48461#true} ~p2~0 := #t~nondet1; {48461#true} is VALID [2020-07-08 16:19:03,037 INFO L280 TraceCheckUtils]: 10: Hoare triple {48461#true} havoc #t~nondet1; {48461#true} is VALID [2020-07-08 16:19:03,037 INFO L280 TraceCheckUtils]: 11: Hoare triple {48461#true} havoc ~lk2~0; {48461#true} is VALID [2020-07-08 16:19:03,037 INFO L280 TraceCheckUtils]: 12: Hoare triple {48461#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {48461#true} is VALID [2020-07-08 16:19:03,038 INFO L280 TraceCheckUtils]: 13: Hoare triple {48461#true} ~p3~0 := #t~nondet2; {48461#true} is VALID [2020-07-08 16:19:03,038 INFO L280 TraceCheckUtils]: 14: Hoare triple {48461#true} havoc #t~nondet2; {48461#true} is VALID [2020-07-08 16:19:03,038 INFO L280 TraceCheckUtils]: 15: Hoare triple {48461#true} havoc ~lk3~0; {48461#true} is VALID [2020-07-08 16:19:03,038 INFO L280 TraceCheckUtils]: 16: Hoare triple {48461#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {48461#true} is VALID [2020-07-08 16:19:03,038 INFO L280 TraceCheckUtils]: 17: Hoare triple {48461#true} ~p4~0 := #t~nondet3; {48461#true} is VALID [2020-07-08 16:19:03,039 INFO L280 TraceCheckUtils]: 18: Hoare triple {48461#true} havoc #t~nondet3; {48461#true} is VALID [2020-07-08 16:19:03,039 INFO L280 TraceCheckUtils]: 19: Hoare triple {48461#true} havoc ~lk4~0; {48461#true} is VALID [2020-07-08 16:19:03,039 INFO L280 TraceCheckUtils]: 20: Hoare triple {48461#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {48461#true} is VALID [2020-07-08 16:19:03,039 INFO L280 TraceCheckUtils]: 21: Hoare triple {48461#true} ~p5~0 := #t~nondet4; {48461#true} is VALID [2020-07-08 16:19:03,039 INFO L280 TraceCheckUtils]: 22: Hoare triple {48461#true} havoc #t~nondet4; {48461#true} is VALID [2020-07-08 16:19:03,040 INFO L280 TraceCheckUtils]: 23: Hoare triple {48461#true} havoc ~lk5~0; {48461#true} is VALID [2020-07-08 16:19:03,040 INFO L280 TraceCheckUtils]: 24: Hoare triple {48461#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {48461#true} is VALID [2020-07-08 16:19:03,040 INFO L280 TraceCheckUtils]: 25: Hoare triple {48461#true} ~p6~0 := #t~nondet5; {48461#true} is VALID [2020-07-08 16:19:03,040 INFO L280 TraceCheckUtils]: 26: Hoare triple {48461#true} havoc #t~nondet5; {48461#true} is VALID [2020-07-08 16:19:03,040 INFO L280 TraceCheckUtils]: 27: Hoare triple {48461#true} havoc ~lk6~0; {48461#true} is VALID [2020-07-08 16:19:03,041 INFO L280 TraceCheckUtils]: 28: Hoare triple {48461#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {48461#true} is VALID [2020-07-08 16:19:03,041 INFO L280 TraceCheckUtils]: 29: Hoare triple {48461#true} ~p7~0 := #t~nondet6; {48461#true} is VALID [2020-07-08 16:19:03,041 INFO L280 TraceCheckUtils]: 30: Hoare triple {48461#true} havoc #t~nondet6; {48461#true} is VALID [2020-07-08 16:19:03,041 INFO L280 TraceCheckUtils]: 31: Hoare triple {48461#true} havoc ~lk7~0; {48461#true} is VALID [2020-07-08 16:19:03,041 INFO L280 TraceCheckUtils]: 32: Hoare triple {48461#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {48461#true} is VALID [2020-07-08 16:19:03,042 INFO L280 TraceCheckUtils]: 33: Hoare triple {48461#true} ~p8~0 := #t~nondet7; {48461#true} is VALID [2020-07-08 16:19:03,042 INFO L280 TraceCheckUtils]: 34: Hoare triple {48461#true} havoc #t~nondet7; {48461#true} is VALID [2020-07-08 16:19:03,042 INFO L280 TraceCheckUtils]: 35: Hoare triple {48461#true} havoc ~lk8~0; {48461#true} is VALID [2020-07-08 16:19:03,042 INFO L280 TraceCheckUtils]: 36: Hoare triple {48461#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {48461#true} is VALID [2020-07-08 16:19:03,042 INFO L280 TraceCheckUtils]: 37: Hoare triple {48461#true} ~p9~0 := #t~nondet8; {48461#true} is VALID [2020-07-08 16:19:03,043 INFO L280 TraceCheckUtils]: 38: Hoare triple {48461#true} havoc #t~nondet8; {48461#true} is VALID [2020-07-08 16:19:03,043 INFO L280 TraceCheckUtils]: 39: Hoare triple {48461#true} havoc ~lk9~0; {48461#true} is VALID [2020-07-08 16:19:03,043 INFO L280 TraceCheckUtils]: 40: Hoare triple {48461#true} havoc ~cond~0; {48461#true} is VALID [2020-07-08 16:19:03,043 INFO L280 TraceCheckUtils]: 41: Hoare triple {48461#true} assume !false; {48461#true} is VALID [2020-07-08 16:19:03,043 INFO L280 TraceCheckUtils]: 42: Hoare triple {48461#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {48461#true} is VALID [2020-07-08 16:19:03,044 INFO L280 TraceCheckUtils]: 43: Hoare triple {48461#true} ~cond~0 := #t~nondet9; {48461#true} is VALID [2020-07-08 16:19:03,044 INFO L280 TraceCheckUtils]: 44: Hoare triple {48461#true} havoc #t~nondet9; {48461#true} is VALID [2020-07-08 16:19:03,044 INFO L280 TraceCheckUtils]: 45: Hoare triple {48461#true} assume !(0 == ~cond~0); {48461#true} is VALID [2020-07-08 16:19:03,044 INFO L280 TraceCheckUtils]: 46: Hoare triple {48461#true} ~lk1~0 := 0; {48461#true} is VALID [2020-07-08 16:19:03,045 INFO L280 TraceCheckUtils]: 47: Hoare triple {48461#true} ~lk2~0 := 0; {48461#true} is VALID [2020-07-08 16:19:03,045 INFO L280 TraceCheckUtils]: 48: Hoare triple {48461#true} ~lk3~0 := 0; {48461#true} is VALID [2020-07-08 16:19:03,045 INFO L280 TraceCheckUtils]: 49: Hoare triple {48461#true} ~lk4~0 := 0; {48461#true} is VALID [2020-07-08 16:19:03,045 INFO L280 TraceCheckUtils]: 50: Hoare triple {48461#true} ~lk5~0 := 0; {48461#true} is VALID [2020-07-08 16:19:03,045 INFO L280 TraceCheckUtils]: 51: Hoare triple {48461#true} ~lk6~0 := 0; {48461#true} is VALID [2020-07-08 16:19:03,046 INFO L280 TraceCheckUtils]: 52: Hoare triple {48461#true} ~lk7~0 := 0; {48461#true} is VALID [2020-07-08 16:19:03,046 INFO L280 TraceCheckUtils]: 53: Hoare triple {48461#true} ~lk8~0 := 0; {48461#true} is VALID [2020-07-08 16:19:03,046 INFO L280 TraceCheckUtils]: 54: Hoare triple {48461#true} ~lk9~0 := 0; {48461#true} is VALID [2020-07-08 16:19:03,046 INFO L280 TraceCheckUtils]: 55: Hoare triple {48461#true} assume !(0 != ~p1~0); {48461#true} is VALID [2020-07-08 16:19:03,046 INFO L280 TraceCheckUtils]: 56: Hoare triple {48461#true} assume !(0 != ~p2~0); {48461#true} is VALID [2020-07-08 16:19:03,047 INFO L280 TraceCheckUtils]: 57: Hoare triple {48461#true} assume !(0 != ~p3~0); {48461#true} is VALID [2020-07-08 16:19:03,047 INFO L280 TraceCheckUtils]: 58: Hoare triple {48461#true} assume !(0 != ~p4~0); {48461#true} is VALID [2020-07-08 16:19:03,047 INFO L280 TraceCheckUtils]: 59: Hoare triple {48461#true} assume !(0 != ~p5~0); {48461#true} is VALID [2020-07-08 16:19:03,049 INFO L280 TraceCheckUtils]: 60: Hoare triple {48461#true} assume !(0 != ~p6~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-08 16:19:03,049 INFO L280 TraceCheckUtils]: 61: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p7~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-08 16:19:03,050 INFO L280 TraceCheckUtils]: 62: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p8~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-08 16:19:03,050 INFO L280 TraceCheckUtils]: 63: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p9~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-08 16:19:03,051 INFO L280 TraceCheckUtils]: 64: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p1~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-08 16:19:03,051 INFO L280 TraceCheckUtils]: 65: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p2~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-08 16:19:03,052 INFO L280 TraceCheckUtils]: 66: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p3~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-08 16:19:03,052 INFO L280 TraceCheckUtils]: 67: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p4~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-08 16:19:03,053 INFO L280 TraceCheckUtils]: 68: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p5~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-08 16:19:03,058 INFO L280 TraceCheckUtils]: 69: Hoare triple {48465#(= 0 main_~p6~0)} assume 0 != ~p6~0; {48462#false} is VALID [2020-07-08 16:19:03,058 INFO L280 TraceCheckUtils]: 70: Hoare triple {48462#false} assume 1 != ~lk6~0; {48462#false} is VALID [2020-07-08 16:19:03,058 INFO L280 TraceCheckUtils]: 71: Hoare triple {48462#false} assume !false; {48462#false} is VALID [2020-07-08 16:19:03,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:19:03,062 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:19:03,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1937920261] [2020-07-08 16:19:03,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:19:03,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:19:03,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883890902] [2020-07-08 16:19:03,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-08 16:19:03,063 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:19:03,063 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:19:03,118 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:19:03,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:19:03,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:19:03,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:19:03,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:19:03,119 INFO L87 Difference]: Start difference. First operand 1691 states and 2234 transitions. Second operand 3 states. [2020-07-08 16:19:12,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:19:12,285 INFO L93 Difference]: Finished difference Result 4895 states and 6492 transitions. [2020-07-08 16:19:12,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:19:12,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-08 16:19:12,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:19:12,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:19:12,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2020-07-08 16:19:12,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:19:12,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2020-07-08 16:19:12,291 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 283 transitions. [2020-07-08 16:19:12,543 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 283 edges. 283 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:19:12,911 INFO L225 Difference]: With dead ends: 4895 [2020-07-08 16:19:12,912 INFO L226 Difference]: Without dead ends: 3245 [2020-07-08 16:19:12,915 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 [2020-07-08 16:19:12,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2020-07-08 16:19:20,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3243. [2020-07-08 16:19:20,622 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:19:20,623 INFO L82 GeneralOperation]: Start isEquivalent. First operand 3245 states. Second operand 3243 states. [2020-07-08 16:19:20,623 INFO L74 IsIncluded]: Start isIncluded. First operand 3245 states. Second operand 3243 states. [2020-07-08 16:19:20,623 INFO L87 Difference]: Start difference. First operand 3245 states. Second operand 3243 states. [2020-07-08 16:19:20,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:19:20,938 INFO L93 Difference]: Finished difference Result 3245 states and 4235 transitions. [2020-07-08 16:19:20,939 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4235 transitions. [2020-07-08 16:19:20,942 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:19:20,942 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:19:20,942 INFO L74 IsIncluded]: Start isIncluded. First operand 3243 states. Second operand 3245 states. [2020-07-08 16:19:20,942 INFO L87 Difference]: Start difference. First operand 3243 states. Second operand 3245 states. [2020-07-08 16:19:21,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:19:21,288 INFO L93 Difference]: Finished difference Result 3245 states and 4235 transitions. [2020-07-08 16:19:21,289 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4235 transitions. [2020-07-08 16:19:21,292 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:19:21,292 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:19:21,292 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:19:21,292 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:19:21,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-07-08 16:19:21,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4234 transitions. [2020-07-08 16:19:21,661 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4234 transitions. Word has length 72 [2020-07-08 16:19:21,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:19:21,661 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 4234 transitions. [2020-07-08 16:19:21,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:19:21,662 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3243 states and 4234 transitions. [2020-07-08 16:19:27,010 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4234 edges. 4234 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:19:27,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4234 transitions. [2020-07-08 16:19:27,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-08 16:19:27,013 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:19:27,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:19:27,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-08 16:19:27,014 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:19:27,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:19:27,014 INFO L82 PathProgramCache]: Analyzing trace with hash 2090581278, now seen corresponding path program 1 times [2020-07-08 16:19:27,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:19:27,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249102123] [2020-07-08 16:19:27,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:19:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:19:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:19:27,051 INFO L280 TraceCheckUtils]: 0: Hoare triple {71234#true} assume true; {71234#true} is VALID [2020-07-08 16:19:27,051 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {71234#true} {71234#true} #247#return; {71234#true} is VALID [2020-07-08 16:19:27,052 INFO L263 TraceCheckUtils]: 0: Hoare triple {71234#true} call ULTIMATE.init(); {71234#true} is VALID [2020-07-08 16:19:27,052 INFO L280 TraceCheckUtils]: 1: Hoare triple {71234#true} assume true; {71234#true} is VALID [2020-07-08 16:19:27,052 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {71234#true} {71234#true} #247#return; {71234#true} is VALID [2020-07-08 16:19:27,052 INFO L263 TraceCheckUtils]: 3: Hoare triple {71234#true} call #t~ret10 := main(); {71234#true} is VALID [2020-07-08 16:19:27,052 INFO L280 TraceCheckUtils]: 4: Hoare triple {71234#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {71234#true} is VALID [2020-07-08 16:19:27,053 INFO L280 TraceCheckUtils]: 5: Hoare triple {71234#true} ~p1~0 := #t~nondet0; {71234#true} is VALID [2020-07-08 16:19:27,053 INFO L280 TraceCheckUtils]: 6: Hoare triple {71234#true} havoc #t~nondet0; {71234#true} is VALID [2020-07-08 16:19:27,053 INFO L280 TraceCheckUtils]: 7: Hoare triple {71234#true} havoc ~lk1~0; {71234#true} is VALID [2020-07-08 16:19:27,053 INFO L280 TraceCheckUtils]: 8: Hoare triple {71234#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {71234#true} is VALID [2020-07-08 16:19:27,053 INFO L280 TraceCheckUtils]: 9: Hoare triple {71234#true} ~p2~0 := #t~nondet1; {71234#true} is VALID [2020-07-08 16:19:27,054 INFO L280 TraceCheckUtils]: 10: Hoare triple {71234#true} havoc #t~nondet1; {71234#true} is VALID [2020-07-08 16:19:27,054 INFO L280 TraceCheckUtils]: 11: Hoare triple {71234#true} havoc ~lk2~0; {71234#true} is VALID [2020-07-08 16:19:27,054 INFO L280 TraceCheckUtils]: 12: Hoare triple {71234#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {71234#true} is VALID [2020-07-08 16:19:27,054 INFO L280 TraceCheckUtils]: 13: Hoare triple {71234#true} ~p3~0 := #t~nondet2; {71234#true} is VALID [2020-07-08 16:19:27,054 INFO L280 TraceCheckUtils]: 14: Hoare triple {71234#true} havoc #t~nondet2; {71234#true} is VALID [2020-07-08 16:19:27,054 INFO L280 TraceCheckUtils]: 15: Hoare triple {71234#true} havoc ~lk3~0; {71234#true} is VALID [2020-07-08 16:19:27,055 INFO L280 TraceCheckUtils]: 16: Hoare triple {71234#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {71234#true} is VALID [2020-07-08 16:19:27,055 INFO L280 TraceCheckUtils]: 17: Hoare triple {71234#true} ~p4~0 := #t~nondet3; {71234#true} is VALID [2020-07-08 16:19:27,055 INFO L280 TraceCheckUtils]: 18: Hoare triple {71234#true} havoc #t~nondet3; {71234#true} is VALID [2020-07-08 16:19:27,055 INFO L280 TraceCheckUtils]: 19: Hoare triple {71234#true} havoc ~lk4~0; {71234#true} is VALID [2020-07-08 16:19:27,055 INFO L280 TraceCheckUtils]: 20: Hoare triple {71234#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {71234#true} is VALID [2020-07-08 16:19:27,056 INFO L280 TraceCheckUtils]: 21: Hoare triple {71234#true} ~p5~0 := #t~nondet4; {71234#true} is VALID [2020-07-08 16:19:27,056 INFO L280 TraceCheckUtils]: 22: Hoare triple {71234#true} havoc #t~nondet4; {71234#true} is VALID [2020-07-08 16:19:27,056 INFO L280 TraceCheckUtils]: 23: Hoare triple {71234#true} havoc ~lk5~0; {71234#true} is VALID [2020-07-08 16:19:27,056 INFO L280 TraceCheckUtils]: 24: Hoare triple {71234#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {71234#true} is VALID [2020-07-08 16:19:27,056 INFO L280 TraceCheckUtils]: 25: Hoare triple {71234#true} ~p6~0 := #t~nondet5; {71234#true} is VALID [2020-07-08 16:19:27,056 INFO L280 TraceCheckUtils]: 26: Hoare triple {71234#true} havoc #t~nondet5; {71234#true} is VALID [2020-07-08 16:19:27,057 INFO L280 TraceCheckUtils]: 27: Hoare triple {71234#true} havoc ~lk6~0; {71234#true} is VALID [2020-07-08 16:19:27,057 INFO L280 TraceCheckUtils]: 28: Hoare triple {71234#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {71234#true} is VALID [2020-07-08 16:19:27,057 INFO L280 TraceCheckUtils]: 29: Hoare triple {71234#true} ~p7~0 := #t~nondet6; {71234#true} is VALID [2020-07-08 16:19:27,057 INFO L280 TraceCheckUtils]: 30: Hoare triple {71234#true} havoc #t~nondet6; {71234#true} is VALID [2020-07-08 16:19:27,057 INFO L280 TraceCheckUtils]: 31: Hoare triple {71234#true} havoc ~lk7~0; {71234#true} is VALID [2020-07-08 16:19:27,058 INFO L280 TraceCheckUtils]: 32: Hoare triple {71234#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {71234#true} is VALID [2020-07-08 16:19:27,058 INFO L280 TraceCheckUtils]: 33: Hoare triple {71234#true} ~p8~0 := #t~nondet7; {71234#true} is VALID [2020-07-08 16:19:27,058 INFO L280 TraceCheckUtils]: 34: Hoare triple {71234#true} havoc #t~nondet7; {71234#true} is VALID [2020-07-08 16:19:27,058 INFO L280 TraceCheckUtils]: 35: Hoare triple {71234#true} havoc ~lk8~0; {71234#true} is VALID [2020-07-08 16:19:27,058 INFO L280 TraceCheckUtils]: 36: Hoare triple {71234#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {71234#true} is VALID [2020-07-08 16:19:27,059 INFO L280 TraceCheckUtils]: 37: Hoare triple {71234#true} ~p9~0 := #t~nondet8; {71234#true} is VALID [2020-07-08 16:19:27,059 INFO L280 TraceCheckUtils]: 38: Hoare triple {71234#true} havoc #t~nondet8; {71234#true} is VALID [2020-07-08 16:19:27,059 INFO L280 TraceCheckUtils]: 39: Hoare triple {71234#true} havoc ~lk9~0; {71234#true} is VALID [2020-07-08 16:19:27,059 INFO L280 TraceCheckUtils]: 40: Hoare triple {71234#true} havoc ~cond~0; {71234#true} is VALID [2020-07-08 16:19:27,059 INFO L280 TraceCheckUtils]: 41: Hoare triple {71234#true} assume !false; {71234#true} is VALID [2020-07-08 16:19:27,060 INFO L280 TraceCheckUtils]: 42: Hoare triple {71234#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {71234#true} is VALID [2020-07-08 16:19:27,060 INFO L280 TraceCheckUtils]: 43: Hoare triple {71234#true} ~cond~0 := #t~nondet9; {71234#true} is VALID [2020-07-08 16:19:27,060 INFO L280 TraceCheckUtils]: 44: Hoare triple {71234#true} havoc #t~nondet9; {71234#true} is VALID [2020-07-08 16:19:27,060 INFO L280 TraceCheckUtils]: 45: Hoare triple {71234#true} assume !(0 == ~cond~0); {71234#true} is VALID [2020-07-08 16:19:27,060 INFO L280 TraceCheckUtils]: 46: Hoare triple {71234#true} ~lk1~0 := 0; {71234#true} is VALID [2020-07-08 16:19:27,061 INFO L280 TraceCheckUtils]: 47: Hoare triple {71234#true} ~lk2~0 := 0; {71234#true} is VALID [2020-07-08 16:19:27,061 INFO L280 TraceCheckUtils]: 48: Hoare triple {71234#true} ~lk3~0 := 0; {71234#true} is VALID [2020-07-08 16:19:27,061 INFO L280 TraceCheckUtils]: 49: Hoare triple {71234#true} ~lk4~0 := 0; {71234#true} is VALID [2020-07-08 16:19:27,061 INFO L280 TraceCheckUtils]: 50: Hoare triple {71234#true} ~lk5~0 := 0; {71234#true} is VALID [2020-07-08 16:19:27,061 INFO L280 TraceCheckUtils]: 51: Hoare triple {71234#true} ~lk6~0 := 0; {71234#true} is VALID [2020-07-08 16:19:27,062 INFO L280 TraceCheckUtils]: 52: Hoare triple {71234#true} ~lk7~0 := 0; {71234#true} is VALID [2020-07-08 16:19:27,062 INFO L280 TraceCheckUtils]: 53: Hoare triple {71234#true} ~lk8~0 := 0; {71234#true} is VALID [2020-07-08 16:19:27,062 INFO L280 TraceCheckUtils]: 54: Hoare triple {71234#true} ~lk9~0 := 0; {71234#true} is VALID [2020-07-08 16:19:27,062 INFO L280 TraceCheckUtils]: 55: Hoare triple {71234#true} assume !(0 != ~p1~0); {71234#true} is VALID [2020-07-08 16:19:27,062 INFO L280 TraceCheckUtils]: 56: Hoare triple {71234#true} assume !(0 != ~p2~0); {71234#true} is VALID [2020-07-08 16:19:27,062 INFO L280 TraceCheckUtils]: 57: Hoare triple {71234#true} assume !(0 != ~p3~0); {71234#true} is VALID [2020-07-08 16:19:27,063 INFO L280 TraceCheckUtils]: 58: Hoare triple {71234#true} assume !(0 != ~p4~0); {71234#true} is VALID [2020-07-08 16:19:27,063 INFO L280 TraceCheckUtils]: 59: Hoare triple {71234#true} assume !(0 != ~p5~0); {71234#true} is VALID [2020-07-08 16:19:27,063 INFO L280 TraceCheckUtils]: 60: Hoare triple {71234#true} assume 0 != ~p6~0; {71234#true} is VALID [2020-07-08 16:19:27,065 INFO L280 TraceCheckUtils]: 61: Hoare triple {71234#true} ~lk6~0 := 1; {71238#(= 1 main_~lk6~0)} is VALID [2020-07-08 16:19:27,065 INFO L280 TraceCheckUtils]: 62: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p7~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-08 16:19:27,066 INFO L280 TraceCheckUtils]: 63: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p8~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-08 16:19:27,066 INFO L280 TraceCheckUtils]: 64: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p9~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-08 16:19:27,067 INFO L280 TraceCheckUtils]: 65: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p1~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-08 16:19:27,067 INFO L280 TraceCheckUtils]: 66: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p2~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-08 16:19:27,068 INFO L280 TraceCheckUtils]: 67: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p3~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-08 16:19:27,068 INFO L280 TraceCheckUtils]: 68: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p4~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-08 16:19:27,069 INFO L280 TraceCheckUtils]: 69: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p5~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-08 16:19:27,069 INFO L280 TraceCheckUtils]: 70: Hoare triple {71238#(= 1 main_~lk6~0)} assume 0 != ~p6~0; {71238#(= 1 main_~lk6~0)} is VALID [2020-07-08 16:19:27,070 INFO L280 TraceCheckUtils]: 71: Hoare triple {71238#(= 1 main_~lk6~0)} assume 1 != ~lk6~0; {71235#false} is VALID [2020-07-08 16:19:27,070 INFO L280 TraceCheckUtils]: 72: Hoare triple {71235#false} assume !false; {71235#false} is VALID [2020-07-08 16:19:27,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:19:27,073 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:19:27,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249102123] [2020-07-08 16:19:27,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:19:27,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:19:27,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873510763] [2020-07-08 16:19:27,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-08 16:19:27,074 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:19:27,075 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:19:27,134 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:19:27,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:19:27,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:19:27,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:19:27,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:19:27,135 INFO L87 Difference]: Start difference. First operand 3243 states and 4234 transitions. Second operand 3 states. [2020-07-08 16:19:37,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:19:37,802 INFO L93 Difference]: Finished difference Result 3887 states and 5068 transitions. [2020-07-08 16:19:37,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:19:37,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-08 16:19:37,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:19:37,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:19:37,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2020-07-08 16:19:37,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:19:37,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2020-07-08 16:19:37,805 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 181 transitions. [2020-07-08 16:19:38,000 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 181 edges. 181 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:19:38,496 INFO L225 Difference]: With dead ends: 3887 [2020-07-08 16:19:38,496 INFO L226 Difference]: Without dead ends: 3885 [2020-07-08 16:19:38,497 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 [2020-07-08 16:19:38,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2020-07-08 16:19:46,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3243. [2020-07-08 16:19:46,783 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:19:46,783 INFO L82 GeneralOperation]: Start isEquivalent. First operand 3885 states. Second operand 3243 states. [2020-07-08 16:19:46,783 INFO L74 IsIncluded]: Start isIncluded. First operand 3885 states. Second operand 3243 states. [2020-07-08 16:19:46,784 INFO L87 Difference]: Start difference. First operand 3885 states. Second operand 3243 states. [2020-07-08 16:19:47,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:19:47,222 INFO L93 Difference]: Finished difference Result 3885 states and 5035 transitions. [2020-07-08 16:19:47,222 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5035 transitions. [2020-07-08 16:19:47,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:19:47,226 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:19:47,226 INFO L74 IsIncluded]: Start isIncluded. First operand 3243 states. Second operand 3885 states. [2020-07-08 16:19:47,226 INFO L87 Difference]: Start difference. First operand 3243 states. Second operand 3885 states. [2020-07-08 16:19:47,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:19:47,679 INFO L93 Difference]: Finished difference Result 3885 states and 5035 transitions. [2020-07-08 16:19:47,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5035 transitions. [2020-07-08 16:19:47,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:19:47,683 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:19:47,683 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:19:47,683 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:19:47,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-07-08 16:19:48,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4202 transitions. [2020-07-08 16:19:48,010 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4202 transitions. Word has length 73 [2020-07-08 16:19:48,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:19:48,011 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 4202 transitions. [2020-07-08 16:19:48,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:19:48,011 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3243 states and 4202 transitions. [2020-07-08 16:19:53,450 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4202 edges. 4202 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:19:53,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4202 transitions. [2020-07-08 16:19:53,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-08 16:19:53,453 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:19:53,454 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:19:53,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-08 16:19:53,454 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:19:53,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:19:53,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1352821224, now seen corresponding path program 1 times [2020-07-08 16:19:53,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:19:53,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827064302] [2020-07-08 16:19:53,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:19:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:19:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:19:53,506 INFO L280 TraceCheckUtils]: 0: Hoare triple {93271#true} assume true; {93271#true} is VALID [2020-07-08 16:19:53,506 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {93271#true} {93271#true} #247#return; {93271#true} is VALID [2020-07-08 16:19:53,507 INFO L263 TraceCheckUtils]: 0: Hoare triple {93271#true} call ULTIMATE.init(); {93271#true} is VALID [2020-07-08 16:19:53,507 INFO L280 TraceCheckUtils]: 1: Hoare triple {93271#true} assume true; {93271#true} is VALID [2020-07-08 16:19:53,507 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {93271#true} {93271#true} #247#return; {93271#true} is VALID [2020-07-08 16:19:53,507 INFO L263 TraceCheckUtils]: 3: Hoare triple {93271#true} call #t~ret10 := main(); {93271#true} is VALID [2020-07-08 16:19:53,507 INFO L280 TraceCheckUtils]: 4: Hoare triple {93271#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {93271#true} is VALID [2020-07-08 16:19:53,508 INFO L280 TraceCheckUtils]: 5: Hoare triple {93271#true} ~p1~0 := #t~nondet0; {93271#true} is VALID [2020-07-08 16:19:53,508 INFO L280 TraceCheckUtils]: 6: Hoare triple {93271#true} havoc #t~nondet0; {93271#true} is VALID [2020-07-08 16:19:53,508 INFO L280 TraceCheckUtils]: 7: Hoare triple {93271#true} havoc ~lk1~0; {93271#true} is VALID [2020-07-08 16:19:53,508 INFO L280 TraceCheckUtils]: 8: Hoare triple {93271#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {93271#true} is VALID [2020-07-08 16:19:53,508 INFO L280 TraceCheckUtils]: 9: Hoare triple {93271#true} ~p2~0 := #t~nondet1; {93271#true} is VALID [2020-07-08 16:19:53,509 INFO L280 TraceCheckUtils]: 10: Hoare triple {93271#true} havoc #t~nondet1; {93271#true} is VALID [2020-07-08 16:19:53,509 INFO L280 TraceCheckUtils]: 11: Hoare triple {93271#true} havoc ~lk2~0; {93271#true} is VALID [2020-07-08 16:19:53,509 INFO L280 TraceCheckUtils]: 12: Hoare triple {93271#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {93271#true} is VALID [2020-07-08 16:19:53,509 INFO L280 TraceCheckUtils]: 13: Hoare triple {93271#true} ~p3~0 := #t~nondet2; {93271#true} is VALID [2020-07-08 16:19:53,510 INFO L280 TraceCheckUtils]: 14: Hoare triple {93271#true} havoc #t~nondet2; {93271#true} is VALID [2020-07-08 16:19:53,511 INFO L280 TraceCheckUtils]: 15: Hoare triple {93271#true} havoc ~lk3~0; {93271#true} is VALID [2020-07-08 16:19:53,511 INFO L280 TraceCheckUtils]: 16: Hoare triple {93271#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {93271#true} is VALID [2020-07-08 16:19:53,511 INFO L280 TraceCheckUtils]: 17: Hoare triple {93271#true} ~p4~0 := #t~nondet3; {93271#true} is VALID [2020-07-08 16:19:53,511 INFO L280 TraceCheckUtils]: 18: Hoare triple {93271#true} havoc #t~nondet3; {93271#true} is VALID [2020-07-08 16:19:53,511 INFO L280 TraceCheckUtils]: 19: Hoare triple {93271#true} havoc ~lk4~0; {93271#true} is VALID [2020-07-08 16:19:53,512 INFO L280 TraceCheckUtils]: 20: Hoare triple {93271#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {93271#true} is VALID [2020-07-08 16:19:53,512 INFO L280 TraceCheckUtils]: 21: Hoare triple {93271#true} ~p5~0 := #t~nondet4; {93271#true} is VALID [2020-07-08 16:19:53,512 INFO L280 TraceCheckUtils]: 22: Hoare triple {93271#true} havoc #t~nondet4; {93271#true} is VALID [2020-07-08 16:19:53,512 INFO L280 TraceCheckUtils]: 23: Hoare triple {93271#true} havoc ~lk5~0; {93271#true} is VALID [2020-07-08 16:19:53,512 INFO L280 TraceCheckUtils]: 24: Hoare triple {93271#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {93271#true} is VALID [2020-07-08 16:19:53,512 INFO L280 TraceCheckUtils]: 25: Hoare triple {93271#true} ~p6~0 := #t~nondet5; {93271#true} is VALID [2020-07-08 16:19:53,513 INFO L280 TraceCheckUtils]: 26: Hoare triple {93271#true} havoc #t~nondet5; {93271#true} is VALID [2020-07-08 16:19:53,513 INFO L280 TraceCheckUtils]: 27: Hoare triple {93271#true} havoc ~lk6~0; {93271#true} is VALID [2020-07-08 16:19:53,513 INFO L280 TraceCheckUtils]: 28: Hoare triple {93271#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {93271#true} is VALID [2020-07-08 16:19:53,513 INFO L280 TraceCheckUtils]: 29: Hoare triple {93271#true} ~p7~0 := #t~nondet6; {93271#true} is VALID [2020-07-08 16:19:53,513 INFO L280 TraceCheckUtils]: 30: Hoare triple {93271#true} havoc #t~nondet6; {93271#true} is VALID [2020-07-08 16:19:53,514 INFO L280 TraceCheckUtils]: 31: Hoare triple {93271#true} havoc ~lk7~0; {93271#true} is VALID [2020-07-08 16:19:53,514 INFO L280 TraceCheckUtils]: 32: Hoare triple {93271#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {93271#true} is VALID [2020-07-08 16:19:53,514 INFO L280 TraceCheckUtils]: 33: Hoare triple {93271#true} ~p8~0 := #t~nondet7; {93271#true} is VALID [2020-07-08 16:19:53,514 INFO L280 TraceCheckUtils]: 34: Hoare triple {93271#true} havoc #t~nondet7; {93271#true} is VALID [2020-07-08 16:19:53,514 INFO L280 TraceCheckUtils]: 35: Hoare triple {93271#true} havoc ~lk8~0; {93271#true} is VALID [2020-07-08 16:19:53,515 INFO L280 TraceCheckUtils]: 36: Hoare triple {93271#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {93271#true} is VALID [2020-07-08 16:19:53,515 INFO L280 TraceCheckUtils]: 37: Hoare triple {93271#true} ~p9~0 := #t~nondet8; {93271#true} is VALID [2020-07-08 16:19:53,515 INFO L280 TraceCheckUtils]: 38: Hoare triple {93271#true} havoc #t~nondet8; {93271#true} is VALID [2020-07-08 16:19:53,515 INFO L280 TraceCheckUtils]: 39: Hoare triple {93271#true} havoc ~lk9~0; {93271#true} is VALID [2020-07-08 16:19:53,515 INFO L280 TraceCheckUtils]: 40: Hoare triple {93271#true} havoc ~cond~0; {93271#true} is VALID [2020-07-08 16:19:53,515 INFO L280 TraceCheckUtils]: 41: Hoare triple {93271#true} assume !false; {93271#true} is VALID [2020-07-08 16:19:53,516 INFO L280 TraceCheckUtils]: 42: Hoare triple {93271#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {93271#true} is VALID [2020-07-08 16:19:53,516 INFO L280 TraceCheckUtils]: 43: Hoare triple {93271#true} ~cond~0 := #t~nondet9; {93271#true} is VALID [2020-07-08 16:19:53,516 INFO L280 TraceCheckUtils]: 44: Hoare triple {93271#true} havoc #t~nondet9; {93271#true} is VALID [2020-07-08 16:19:53,516 INFO L280 TraceCheckUtils]: 45: Hoare triple {93271#true} assume !(0 == ~cond~0); {93271#true} is VALID [2020-07-08 16:19:53,516 INFO L280 TraceCheckUtils]: 46: Hoare triple {93271#true} ~lk1~0 := 0; {93271#true} is VALID [2020-07-08 16:19:53,516 INFO L280 TraceCheckUtils]: 47: Hoare triple {93271#true} ~lk2~0 := 0; {93271#true} is VALID [2020-07-08 16:19:53,516 INFO L280 TraceCheckUtils]: 48: Hoare triple {93271#true} ~lk3~0 := 0; {93271#true} is VALID [2020-07-08 16:19:53,517 INFO L280 TraceCheckUtils]: 49: Hoare triple {93271#true} ~lk4~0 := 0; {93271#true} is VALID [2020-07-08 16:19:53,517 INFO L280 TraceCheckUtils]: 50: Hoare triple {93271#true} ~lk5~0 := 0; {93271#true} is VALID [2020-07-08 16:19:53,517 INFO L280 TraceCheckUtils]: 51: Hoare triple {93271#true} ~lk6~0 := 0; {93271#true} is VALID [2020-07-08 16:19:53,517 INFO L280 TraceCheckUtils]: 52: Hoare triple {93271#true} ~lk7~0 := 0; {93271#true} is VALID [2020-07-08 16:19:53,517 INFO L280 TraceCheckUtils]: 53: Hoare triple {93271#true} ~lk8~0 := 0; {93271#true} is VALID [2020-07-08 16:19:53,517 INFO L280 TraceCheckUtils]: 54: Hoare triple {93271#true} ~lk9~0 := 0; {93271#true} is VALID [2020-07-08 16:19:53,518 INFO L280 TraceCheckUtils]: 55: Hoare triple {93271#true} assume !(0 != ~p1~0); {93271#true} is VALID [2020-07-08 16:19:53,518 INFO L280 TraceCheckUtils]: 56: Hoare triple {93271#true} assume !(0 != ~p2~0); {93271#true} is VALID [2020-07-08 16:19:53,518 INFO L280 TraceCheckUtils]: 57: Hoare triple {93271#true} assume !(0 != ~p3~0); {93271#true} is VALID [2020-07-08 16:19:53,518 INFO L280 TraceCheckUtils]: 58: Hoare triple {93271#true} assume !(0 != ~p4~0); {93271#true} is VALID [2020-07-08 16:19:53,518 INFO L280 TraceCheckUtils]: 59: Hoare triple {93271#true} assume !(0 != ~p5~0); {93271#true} is VALID [2020-07-08 16:19:53,519 INFO L280 TraceCheckUtils]: 60: Hoare triple {93271#true} assume !(0 != ~p6~0); {93271#true} is VALID [2020-07-08 16:19:53,519 INFO L280 TraceCheckUtils]: 61: Hoare triple {93271#true} assume !(0 != ~p7~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-08 16:19:53,520 INFO L280 TraceCheckUtils]: 62: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p8~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-08 16:19:53,520 INFO L280 TraceCheckUtils]: 63: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p9~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-08 16:19:53,521 INFO L280 TraceCheckUtils]: 64: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p1~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-08 16:19:53,521 INFO L280 TraceCheckUtils]: 65: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p2~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-08 16:19:53,522 INFO L280 TraceCheckUtils]: 66: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p3~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-08 16:19:53,522 INFO L280 TraceCheckUtils]: 67: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p4~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-08 16:19:53,523 INFO L280 TraceCheckUtils]: 68: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p5~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-08 16:19:53,523 INFO L280 TraceCheckUtils]: 69: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p6~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-08 16:19:53,524 INFO L280 TraceCheckUtils]: 70: Hoare triple {93275#(= 0 main_~p7~0)} assume 0 != ~p7~0; {93272#false} is VALID [2020-07-08 16:19:53,524 INFO L280 TraceCheckUtils]: 71: Hoare triple {93272#false} assume 1 != ~lk7~0; {93272#false} is VALID [2020-07-08 16:19:53,524 INFO L280 TraceCheckUtils]: 72: Hoare triple {93272#false} assume !false; {93272#false} is VALID [2020-07-08 16:19:53,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:19:53,527 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:19:53,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827064302] [2020-07-08 16:19:53,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:19:53,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:19:53,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583173386] [2020-07-08 16:19:53,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-08 16:19:53,528 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:19:53,528 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:19:53,603 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:19:53,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:19:53,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:19:53,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:19:53,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:19:53,605 INFO L87 Difference]: Start difference. First operand 3243 states and 4202 transitions. Second operand 3 states. [2020-07-08 16:20:15,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:20:15,235 INFO L93 Difference]: Finished difference Result 9455 states and 12268 transitions. [2020-07-08 16:20:15,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:20:15,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-08 16:20:15,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:20:15,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:20:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-08 16:20:15,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:20:15,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-08 16:20:15,239 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 280 transitions. [2020-07-08 16:20:15,480 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 280 edges. 280 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:20:16,757 INFO L225 Difference]: With dead ends: 9455 [2020-07-08 16:20:16,757 INFO L226 Difference]: Without dead ends: 6253 [2020-07-08 16:20:16,770 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 [2020-07-08 16:20:16,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6253 states. [2020-07-08 16:20:34,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6253 to 6251. [2020-07-08 16:20:34,119 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:20:34,119 INFO L82 GeneralOperation]: Start isEquivalent. First operand 6253 states. Second operand 6251 states. [2020-07-08 16:20:34,119 INFO L74 IsIncluded]: Start isIncluded. First operand 6253 states. Second operand 6251 states. [2020-07-08 16:20:34,119 INFO L87 Difference]: Start difference. First operand 6253 states. Second operand 6251 states. [2020-07-08 16:20:35,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:20:35,384 INFO L93 Difference]: Finished difference Result 6253 states and 7979 transitions. [2020-07-08 16:20:35,384 INFO L276 IsEmpty]: Start isEmpty. Operand 6253 states and 7979 transitions. [2020-07-08 16:20:35,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:20:35,391 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:20:35,391 INFO L74 IsIncluded]: Start isIncluded. First operand 6251 states. Second operand 6253 states. [2020-07-08 16:20:35,391 INFO L87 Difference]: Start difference. First operand 6251 states. Second operand 6253 states. [2020-07-08 16:20:36,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:20:36,650 INFO L93 Difference]: Finished difference Result 6253 states and 7979 transitions. [2020-07-08 16:20:36,650 INFO L276 IsEmpty]: Start isEmpty. Operand 6253 states and 7979 transitions. [2020-07-08 16:20:36,656 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:20:36,657 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:20:36,657 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:20:36,657 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:20:36,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6251 states. [2020-07-08 16:20:37,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6251 states to 6251 states and 7978 transitions. [2020-07-08 16:20:37,917 INFO L78 Accepts]: Start accepts. Automaton has 6251 states and 7978 transitions. Word has length 73 [2020-07-08 16:20:37,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:20:37,918 INFO L479 AbstractCegarLoop]: Abstraction has 6251 states and 7978 transitions. [2020-07-08 16:20:37,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:20:37,918 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6251 states and 7978 transitions. [2020-07-08 16:20:48,400 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7978 edges. 7978 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:20:48,400 INFO L276 IsEmpty]: Start isEmpty. Operand 6251 states and 7978 transitions. [2020-07-08 16:20:48,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-08 16:20:48,404 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:20:48,404 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:20:48,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-08 16:20:48,405 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:20:48,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:20:48,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1012461522, now seen corresponding path program 1 times [2020-07-08 16:20:48,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:20:48,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2089454002] [2020-07-08 16:20:48,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:20:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:20:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:20:48,440 INFO L280 TraceCheckUtils]: 0: Hoare triple {137196#true} assume true; {137196#true} is VALID [2020-07-08 16:20:48,440 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {137196#true} {137196#true} #247#return; {137196#true} is VALID [2020-07-08 16:20:48,440 INFO L263 TraceCheckUtils]: 0: Hoare triple {137196#true} call ULTIMATE.init(); {137196#true} is VALID [2020-07-08 16:20:48,441 INFO L280 TraceCheckUtils]: 1: Hoare triple {137196#true} assume true; {137196#true} is VALID [2020-07-08 16:20:48,441 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {137196#true} {137196#true} #247#return; {137196#true} is VALID [2020-07-08 16:20:48,441 INFO L263 TraceCheckUtils]: 3: Hoare triple {137196#true} call #t~ret10 := main(); {137196#true} is VALID [2020-07-08 16:20:48,441 INFO L280 TraceCheckUtils]: 4: Hoare triple {137196#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {137196#true} is VALID [2020-07-08 16:20:48,441 INFO L280 TraceCheckUtils]: 5: Hoare triple {137196#true} ~p1~0 := #t~nondet0; {137196#true} is VALID [2020-07-08 16:20:48,441 INFO L280 TraceCheckUtils]: 6: Hoare triple {137196#true} havoc #t~nondet0; {137196#true} is VALID [2020-07-08 16:20:48,441 INFO L280 TraceCheckUtils]: 7: Hoare triple {137196#true} havoc ~lk1~0; {137196#true} is VALID [2020-07-08 16:20:48,442 INFO L280 TraceCheckUtils]: 8: Hoare triple {137196#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {137196#true} is VALID [2020-07-08 16:20:48,442 INFO L280 TraceCheckUtils]: 9: Hoare triple {137196#true} ~p2~0 := #t~nondet1; {137196#true} is VALID [2020-07-08 16:20:48,442 INFO L280 TraceCheckUtils]: 10: Hoare triple {137196#true} havoc #t~nondet1; {137196#true} is VALID [2020-07-08 16:20:48,442 INFO L280 TraceCheckUtils]: 11: Hoare triple {137196#true} havoc ~lk2~0; {137196#true} is VALID [2020-07-08 16:20:48,442 INFO L280 TraceCheckUtils]: 12: Hoare triple {137196#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {137196#true} is VALID [2020-07-08 16:20:48,442 INFO L280 TraceCheckUtils]: 13: Hoare triple {137196#true} ~p3~0 := #t~nondet2; {137196#true} is VALID [2020-07-08 16:20:48,442 INFO L280 TraceCheckUtils]: 14: Hoare triple {137196#true} havoc #t~nondet2; {137196#true} is VALID [2020-07-08 16:20:48,443 INFO L280 TraceCheckUtils]: 15: Hoare triple {137196#true} havoc ~lk3~0; {137196#true} is VALID [2020-07-08 16:20:48,443 INFO L280 TraceCheckUtils]: 16: Hoare triple {137196#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {137196#true} is VALID [2020-07-08 16:20:48,443 INFO L280 TraceCheckUtils]: 17: Hoare triple {137196#true} ~p4~0 := #t~nondet3; {137196#true} is VALID [2020-07-08 16:20:48,443 INFO L280 TraceCheckUtils]: 18: Hoare triple {137196#true} havoc #t~nondet3; {137196#true} is VALID [2020-07-08 16:20:48,443 INFO L280 TraceCheckUtils]: 19: Hoare triple {137196#true} havoc ~lk4~0; {137196#true} is VALID [2020-07-08 16:20:48,443 INFO L280 TraceCheckUtils]: 20: Hoare triple {137196#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {137196#true} is VALID [2020-07-08 16:20:48,443 INFO L280 TraceCheckUtils]: 21: Hoare triple {137196#true} ~p5~0 := #t~nondet4; {137196#true} is VALID [2020-07-08 16:20:48,443 INFO L280 TraceCheckUtils]: 22: Hoare triple {137196#true} havoc #t~nondet4; {137196#true} is VALID [2020-07-08 16:20:48,444 INFO L280 TraceCheckUtils]: 23: Hoare triple {137196#true} havoc ~lk5~0; {137196#true} is VALID [2020-07-08 16:20:48,444 INFO L280 TraceCheckUtils]: 24: Hoare triple {137196#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {137196#true} is VALID [2020-07-08 16:20:48,444 INFO L280 TraceCheckUtils]: 25: Hoare triple {137196#true} ~p6~0 := #t~nondet5; {137196#true} is VALID [2020-07-08 16:20:48,444 INFO L280 TraceCheckUtils]: 26: Hoare triple {137196#true} havoc #t~nondet5; {137196#true} is VALID [2020-07-08 16:20:48,444 INFO L280 TraceCheckUtils]: 27: Hoare triple {137196#true} havoc ~lk6~0; {137196#true} is VALID [2020-07-08 16:20:48,444 INFO L280 TraceCheckUtils]: 28: Hoare triple {137196#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {137196#true} is VALID [2020-07-08 16:20:48,445 INFO L280 TraceCheckUtils]: 29: Hoare triple {137196#true} ~p7~0 := #t~nondet6; {137196#true} is VALID [2020-07-08 16:20:48,445 INFO L280 TraceCheckUtils]: 30: Hoare triple {137196#true} havoc #t~nondet6; {137196#true} is VALID [2020-07-08 16:20:48,445 INFO L280 TraceCheckUtils]: 31: Hoare triple {137196#true} havoc ~lk7~0; {137196#true} is VALID [2020-07-08 16:20:48,445 INFO L280 TraceCheckUtils]: 32: Hoare triple {137196#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {137196#true} is VALID [2020-07-08 16:20:48,445 INFO L280 TraceCheckUtils]: 33: Hoare triple {137196#true} ~p8~0 := #t~nondet7; {137196#true} is VALID [2020-07-08 16:20:48,446 INFO L280 TraceCheckUtils]: 34: Hoare triple {137196#true} havoc #t~nondet7; {137196#true} is VALID [2020-07-08 16:20:48,446 INFO L280 TraceCheckUtils]: 35: Hoare triple {137196#true} havoc ~lk8~0; {137196#true} is VALID [2020-07-08 16:20:48,446 INFO L280 TraceCheckUtils]: 36: Hoare triple {137196#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {137196#true} is VALID [2020-07-08 16:20:48,446 INFO L280 TraceCheckUtils]: 37: Hoare triple {137196#true} ~p9~0 := #t~nondet8; {137196#true} is VALID [2020-07-08 16:20:48,446 INFO L280 TraceCheckUtils]: 38: Hoare triple {137196#true} havoc #t~nondet8; {137196#true} is VALID [2020-07-08 16:20:48,446 INFO L280 TraceCheckUtils]: 39: Hoare triple {137196#true} havoc ~lk9~0; {137196#true} is VALID [2020-07-08 16:20:48,446 INFO L280 TraceCheckUtils]: 40: Hoare triple {137196#true} havoc ~cond~0; {137196#true} is VALID [2020-07-08 16:20:48,446 INFO L280 TraceCheckUtils]: 41: Hoare triple {137196#true} assume !false; {137196#true} is VALID [2020-07-08 16:20:48,447 INFO L280 TraceCheckUtils]: 42: Hoare triple {137196#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {137196#true} is VALID [2020-07-08 16:20:48,447 INFO L280 TraceCheckUtils]: 43: Hoare triple {137196#true} ~cond~0 := #t~nondet9; {137196#true} is VALID [2020-07-08 16:20:48,447 INFO L280 TraceCheckUtils]: 44: Hoare triple {137196#true} havoc #t~nondet9; {137196#true} is VALID [2020-07-08 16:20:48,447 INFO L280 TraceCheckUtils]: 45: Hoare triple {137196#true} assume !(0 == ~cond~0); {137196#true} is VALID [2020-07-08 16:20:48,447 INFO L280 TraceCheckUtils]: 46: Hoare triple {137196#true} ~lk1~0 := 0; {137196#true} is VALID [2020-07-08 16:20:48,447 INFO L280 TraceCheckUtils]: 47: Hoare triple {137196#true} ~lk2~0 := 0; {137196#true} is VALID [2020-07-08 16:20:48,447 INFO L280 TraceCheckUtils]: 48: Hoare triple {137196#true} ~lk3~0 := 0; {137196#true} is VALID [2020-07-08 16:20:48,448 INFO L280 TraceCheckUtils]: 49: Hoare triple {137196#true} ~lk4~0 := 0; {137196#true} is VALID [2020-07-08 16:20:48,448 INFO L280 TraceCheckUtils]: 50: Hoare triple {137196#true} ~lk5~0 := 0; {137196#true} is VALID [2020-07-08 16:20:48,448 INFO L280 TraceCheckUtils]: 51: Hoare triple {137196#true} ~lk6~0 := 0; {137196#true} is VALID [2020-07-08 16:20:48,448 INFO L280 TraceCheckUtils]: 52: Hoare triple {137196#true} ~lk7~0 := 0; {137196#true} is VALID [2020-07-08 16:20:48,448 INFO L280 TraceCheckUtils]: 53: Hoare triple {137196#true} ~lk8~0 := 0; {137196#true} is VALID [2020-07-08 16:20:48,448 INFO L280 TraceCheckUtils]: 54: Hoare triple {137196#true} ~lk9~0 := 0; {137196#true} is VALID [2020-07-08 16:20:48,448 INFO L280 TraceCheckUtils]: 55: Hoare triple {137196#true} assume !(0 != ~p1~0); {137196#true} is VALID [2020-07-08 16:20:48,448 INFO L280 TraceCheckUtils]: 56: Hoare triple {137196#true} assume !(0 != ~p2~0); {137196#true} is VALID [2020-07-08 16:20:48,449 INFO L280 TraceCheckUtils]: 57: Hoare triple {137196#true} assume !(0 != ~p3~0); {137196#true} is VALID [2020-07-08 16:20:48,449 INFO L280 TraceCheckUtils]: 58: Hoare triple {137196#true} assume !(0 != ~p4~0); {137196#true} is VALID [2020-07-08 16:20:48,449 INFO L280 TraceCheckUtils]: 59: Hoare triple {137196#true} assume !(0 != ~p5~0); {137196#true} is VALID [2020-07-08 16:20:48,449 INFO L280 TraceCheckUtils]: 60: Hoare triple {137196#true} assume !(0 != ~p6~0); {137196#true} is VALID [2020-07-08 16:20:48,449 INFO L280 TraceCheckUtils]: 61: Hoare triple {137196#true} assume !(0 != ~p7~0); {137196#true} is VALID [2020-07-08 16:20:48,454 INFO L280 TraceCheckUtils]: 62: Hoare triple {137196#true} assume !(0 != ~p8~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-08 16:20:48,455 INFO L280 TraceCheckUtils]: 63: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p9~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-08 16:20:48,456 INFO L280 TraceCheckUtils]: 64: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p1~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-08 16:20:48,456 INFO L280 TraceCheckUtils]: 65: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p2~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-08 16:20:48,457 INFO L280 TraceCheckUtils]: 66: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p3~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-08 16:20:48,457 INFO L280 TraceCheckUtils]: 67: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p4~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-08 16:20:48,458 INFO L280 TraceCheckUtils]: 68: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p5~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-08 16:20:48,458 INFO L280 TraceCheckUtils]: 69: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p6~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-08 16:20:48,459 INFO L280 TraceCheckUtils]: 70: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p7~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-08 16:20:48,459 INFO L280 TraceCheckUtils]: 71: Hoare triple {137200#(= 0 main_~p8~0)} assume 0 != ~p8~0; {137197#false} is VALID [2020-07-08 16:20:48,459 INFO L280 TraceCheckUtils]: 72: Hoare triple {137197#false} assume 1 != ~lk8~0; {137197#false} is VALID [2020-07-08 16:20:48,460 INFO L280 TraceCheckUtils]: 73: Hoare triple {137197#false} assume !false; {137197#false} is VALID [2020-07-08 16:20:48,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:20:48,463 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:20:48,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2089454002] [2020-07-08 16:20:48,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:20:48,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:20:48,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198430837] [2020-07-08 16:20:48,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-08 16:20:48,464 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:20:48,465 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:20:48,527 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:20:48,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:20:48,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:20:48,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:20:48,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:20:48,528 INFO L87 Difference]: Start difference. First operand 6251 states and 7978 transitions. Second operand 3 states. [2020-07-08 16:21:46,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:21:46,181 INFO L93 Difference]: Finished difference Result 18287 states and 23340 transitions. [2020-07-08 16:21:46,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:21:46,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-08 16:21:46,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:21:46,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:21:46,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-08 16:21:46,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:21:46,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-08 16:21:46,186 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 280 transitions. [2020-07-08 16:21:46,486 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 280 edges. 280 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:21:51,808 INFO L225 Difference]: With dead ends: 18287 [2020-07-08 16:21:51,808 INFO L226 Difference]: Without dead ends: 12077 [2020-07-08 16:21:51,819 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 [2020-07-08 16:21:51,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12077 states. [2020-07-08 16:22:30,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12077 to 12075. [2020-07-08 16:22:30,902 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:22:30,902 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12077 states. Second operand 12075 states. [2020-07-08 16:22:30,902 INFO L74 IsIncluded]: Start isIncluded. First operand 12077 states. Second operand 12075 states. [2020-07-08 16:22:30,902 INFO L87 Difference]: Start difference. First operand 12077 states. Second operand 12075 states. [2020-07-08 16:22:35,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:22:35,513 INFO L93 Difference]: Finished difference Result 12077 states and 15147 transitions. [2020-07-08 16:22:35,513 INFO L276 IsEmpty]: Start isEmpty. Operand 12077 states and 15147 transitions. [2020-07-08 16:22:35,525 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:22:35,526 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:22:35,526 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 12077 states. [2020-07-08 16:22:35,526 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 12077 states. [2020-07-08 16:22:40,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:22:40,071 INFO L93 Difference]: Finished difference Result 12077 states and 15147 transitions. [2020-07-08 16:22:40,071 INFO L276 IsEmpty]: Start isEmpty. Operand 12077 states and 15147 transitions. [2020-07-08 16:22:40,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:22:40,080 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:22:40,080 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:22:40,080 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:22:40,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-08 16:22:45,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 15146 transitions. [2020-07-08 16:22:45,785 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 15146 transitions. Word has length 74 [2020-07-08 16:22:45,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:22:45,785 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 15146 transitions. [2020-07-08 16:22:45,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:22:45,785 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 15146 transitions. [2020-07-08 16:23:06,356 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15146 edges. 15146 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:23:06,357 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 15146 transitions. [2020-07-08 16:23:06,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-08 16:23:06,361 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:23:06,361 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:23:06,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-08 16:23:06,362 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:23:06,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:23:06,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1143464253, now seen corresponding path program 1 times [2020-07-08 16:23:06,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:23:06,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802928487] [2020-07-08 16:23:06,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:23:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:23:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:23:06,407 INFO L280 TraceCheckUtils]: 0: Hoare triple {222081#true} assume true; {222081#true} is VALID [2020-07-08 16:23:06,407 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {222081#true} {222081#true} #247#return; {222081#true} is VALID [2020-07-08 16:23:06,408 INFO L263 TraceCheckUtils]: 0: Hoare triple {222081#true} call ULTIMATE.init(); {222081#true} is VALID [2020-07-08 16:23:06,408 INFO L280 TraceCheckUtils]: 1: Hoare triple {222081#true} assume true; {222081#true} is VALID [2020-07-08 16:23:06,408 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {222081#true} {222081#true} #247#return; {222081#true} is VALID [2020-07-08 16:23:06,408 INFO L263 TraceCheckUtils]: 3: Hoare triple {222081#true} call #t~ret10 := main(); {222081#true} is VALID [2020-07-08 16:23:06,408 INFO L280 TraceCheckUtils]: 4: Hoare triple {222081#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {222081#true} is VALID [2020-07-08 16:23:06,408 INFO L280 TraceCheckUtils]: 5: Hoare triple {222081#true} ~p1~0 := #t~nondet0; {222081#true} is VALID [2020-07-08 16:23:06,408 INFO L280 TraceCheckUtils]: 6: Hoare triple {222081#true} havoc #t~nondet0; {222081#true} is VALID [2020-07-08 16:23:06,408 INFO L280 TraceCheckUtils]: 7: Hoare triple {222081#true} havoc ~lk1~0; {222081#true} is VALID [2020-07-08 16:23:06,409 INFO L280 TraceCheckUtils]: 8: Hoare triple {222081#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {222081#true} is VALID [2020-07-08 16:23:06,409 INFO L280 TraceCheckUtils]: 9: Hoare triple {222081#true} ~p2~0 := #t~nondet1; {222081#true} is VALID [2020-07-08 16:23:06,409 INFO L280 TraceCheckUtils]: 10: Hoare triple {222081#true} havoc #t~nondet1; {222081#true} is VALID [2020-07-08 16:23:06,409 INFO L280 TraceCheckUtils]: 11: Hoare triple {222081#true} havoc ~lk2~0; {222081#true} is VALID [2020-07-08 16:23:06,409 INFO L280 TraceCheckUtils]: 12: Hoare triple {222081#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {222081#true} is VALID [2020-07-08 16:23:06,409 INFO L280 TraceCheckUtils]: 13: Hoare triple {222081#true} ~p3~0 := #t~nondet2; {222081#true} is VALID [2020-07-08 16:23:06,409 INFO L280 TraceCheckUtils]: 14: Hoare triple {222081#true} havoc #t~nondet2; {222081#true} is VALID [2020-07-08 16:23:06,409 INFO L280 TraceCheckUtils]: 15: Hoare triple {222081#true} havoc ~lk3~0; {222081#true} is VALID [2020-07-08 16:23:06,410 INFO L280 TraceCheckUtils]: 16: Hoare triple {222081#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {222081#true} is VALID [2020-07-08 16:23:06,410 INFO L280 TraceCheckUtils]: 17: Hoare triple {222081#true} ~p4~0 := #t~nondet3; {222081#true} is VALID [2020-07-08 16:23:06,410 INFO L280 TraceCheckUtils]: 18: Hoare triple {222081#true} havoc #t~nondet3; {222081#true} is VALID [2020-07-08 16:23:06,410 INFO L280 TraceCheckUtils]: 19: Hoare triple {222081#true} havoc ~lk4~0; {222081#true} is VALID [2020-07-08 16:23:06,410 INFO L280 TraceCheckUtils]: 20: Hoare triple {222081#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {222081#true} is VALID [2020-07-08 16:23:06,410 INFO L280 TraceCheckUtils]: 21: Hoare triple {222081#true} ~p5~0 := #t~nondet4; {222081#true} is VALID [2020-07-08 16:23:06,411 INFO L280 TraceCheckUtils]: 22: Hoare triple {222081#true} havoc #t~nondet4; {222081#true} is VALID [2020-07-08 16:23:06,411 INFO L280 TraceCheckUtils]: 23: Hoare triple {222081#true} havoc ~lk5~0; {222081#true} is VALID [2020-07-08 16:23:06,411 INFO L280 TraceCheckUtils]: 24: Hoare triple {222081#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {222081#true} is VALID [2020-07-08 16:23:06,411 INFO L280 TraceCheckUtils]: 25: Hoare triple {222081#true} ~p6~0 := #t~nondet5; {222081#true} is VALID [2020-07-08 16:23:06,411 INFO L280 TraceCheckUtils]: 26: Hoare triple {222081#true} havoc #t~nondet5; {222081#true} is VALID [2020-07-08 16:23:06,411 INFO L280 TraceCheckUtils]: 27: Hoare triple {222081#true} havoc ~lk6~0; {222081#true} is VALID [2020-07-08 16:23:06,412 INFO L280 TraceCheckUtils]: 28: Hoare triple {222081#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {222081#true} is VALID [2020-07-08 16:23:06,412 INFO L280 TraceCheckUtils]: 29: Hoare triple {222081#true} ~p7~0 := #t~nondet6; {222081#true} is VALID [2020-07-08 16:23:06,412 INFO L280 TraceCheckUtils]: 30: Hoare triple {222081#true} havoc #t~nondet6; {222081#true} is VALID [2020-07-08 16:23:06,412 INFO L280 TraceCheckUtils]: 31: Hoare triple {222081#true} havoc ~lk7~0; {222081#true} is VALID [2020-07-08 16:23:06,412 INFO L280 TraceCheckUtils]: 32: Hoare triple {222081#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {222081#true} is VALID [2020-07-08 16:23:06,412 INFO L280 TraceCheckUtils]: 33: Hoare triple {222081#true} ~p8~0 := #t~nondet7; {222081#true} is VALID [2020-07-08 16:23:06,412 INFO L280 TraceCheckUtils]: 34: Hoare triple {222081#true} havoc #t~nondet7; {222081#true} is VALID [2020-07-08 16:23:06,413 INFO L280 TraceCheckUtils]: 35: Hoare triple {222081#true} havoc ~lk8~0; {222081#true} is VALID [2020-07-08 16:23:06,413 INFO L280 TraceCheckUtils]: 36: Hoare triple {222081#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {222081#true} is VALID [2020-07-08 16:23:06,413 INFO L280 TraceCheckUtils]: 37: Hoare triple {222081#true} ~p9~0 := #t~nondet8; {222081#true} is VALID [2020-07-08 16:23:06,413 INFO L280 TraceCheckUtils]: 38: Hoare triple {222081#true} havoc #t~nondet8; {222081#true} is VALID [2020-07-08 16:23:06,413 INFO L280 TraceCheckUtils]: 39: Hoare triple {222081#true} havoc ~lk9~0; {222081#true} is VALID [2020-07-08 16:23:06,413 INFO L280 TraceCheckUtils]: 40: Hoare triple {222081#true} havoc ~cond~0; {222081#true} is VALID [2020-07-08 16:23:06,414 INFO L280 TraceCheckUtils]: 41: Hoare triple {222081#true} assume !false; {222081#true} is VALID [2020-07-08 16:23:06,414 INFO L280 TraceCheckUtils]: 42: Hoare triple {222081#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {222081#true} is VALID [2020-07-08 16:23:06,414 INFO L280 TraceCheckUtils]: 43: Hoare triple {222081#true} ~cond~0 := #t~nondet9; {222081#true} is VALID [2020-07-08 16:23:06,414 INFO L280 TraceCheckUtils]: 44: Hoare triple {222081#true} havoc #t~nondet9; {222081#true} is VALID [2020-07-08 16:23:06,414 INFO L280 TraceCheckUtils]: 45: Hoare triple {222081#true} assume !(0 == ~cond~0); {222081#true} is VALID [2020-07-08 16:23:06,414 INFO L280 TraceCheckUtils]: 46: Hoare triple {222081#true} ~lk1~0 := 0; {222081#true} is VALID [2020-07-08 16:23:06,414 INFO L280 TraceCheckUtils]: 47: Hoare triple {222081#true} ~lk2~0 := 0; {222081#true} is VALID [2020-07-08 16:23:06,414 INFO L280 TraceCheckUtils]: 48: Hoare triple {222081#true} ~lk3~0 := 0; {222081#true} is VALID [2020-07-08 16:23:06,415 INFO L280 TraceCheckUtils]: 49: Hoare triple {222081#true} ~lk4~0 := 0; {222081#true} is VALID [2020-07-08 16:23:06,415 INFO L280 TraceCheckUtils]: 50: Hoare triple {222081#true} ~lk5~0 := 0; {222081#true} is VALID [2020-07-08 16:23:06,415 INFO L280 TraceCheckUtils]: 51: Hoare triple {222081#true} ~lk6~0 := 0; {222081#true} is VALID [2020-07-08 16:23:06,415 INFO L280 TraceCheckUtils]: 52: Hoare triple {222081#true} ~lk7~0 := 0; {222081#true} is VALID [2020-07-08 16:23:06,415 INFO L280 TraceCheckUtils]: 53: Hoare triple {222081#true} ~lk8~0 := 0; {222081#true} is VALID [2020-07-08 16:23:06,415 INFO L280 TraceCheckUtils]: 54: Hoare triple {222081#true} ~lk9~0 := 0; {222081#true} is VALID [2020-07-08 16:23:06,415 INFO L280 TraceCheckUtils]: 55: Hoare triple {222081#true} assume !(0 != ~p1~0); {222081#true} is VALID [2020-07-08 16:23:06,415 INFO L280 TraceCheckUtils]: 56: Hoare triple {222081#true} assume !(0 != ~p2~0); {222081#true} is VALID [2020-07-08 16:23:06,415 INFO L280 TraceCheckUtils]: 57: Hoare triple {222081#true} assume !(0 != ~p3~0); {222081#true} is VALID [2020-07-08 16:23:06,416 INFO L280 TraceCheckUtils]: 58: Hoare triple {222081#true} assume !(0 != ~p4~0); {222081#true} is VALID [2020-07-08 16:23:06,416 INFO L280 TraceCheckUtils]: 59: Hoare triple {222081#true} assume !(0 != ~p5~0); {222081#true} is VALID [2020-07-08 16:23:06,416 INFO L280 TraceCheckUtils]: 60: Hoare triple {222081#true} assume !(0 != ~p6~0); {222081#true} is VALID [2020-07-08 16:23:06,416 INFO L280 TraceCheckUtils]: 61: Hoare triple {222081#true} assume 0 != ~p7~0; {222081#true} is VALID [2020-07-08 16:23:06,416 INFO L280 TraceCheckUtils]: 62: Hoare triple {222081#true} ~lk7~0 := 1; {222085#(= main_~lk7~0 1)} is VALID [2020-07-08 16:23:06,417 INFO L280 TraceCheckUtils]: 63: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p8~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-08 16:23:06,417 INFO L280 TraceCheckUtils]: 64: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p9~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-08 16:23:06,418 INFO L280 TraceCheckUtils]: 65: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p1~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-08 16:23:06,418 INFO L280 TraceCheckUtils]: 66: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p2~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-08 16:23:06,418 INFO L280 TraceCheckUtils]: 67: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p3~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-08 16:23:06,419 INFO L280 TraceCheckUtils]: 68: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p4~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-08 16:23:06,419 INFO L280 TraceCheckUtils]: 69: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p5~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-08 16:23:06,419 INFO L280 TraceCheckUtils]: 70: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p6~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-08 16:23:06,420 INFO L280 TraceCheckUtils]: 71: Hoare triple {222085#(= main_~lk7~0 1)} assume 0 != ~p7~0; {222085#(= main_~lk7~0 1)} is VALID [2020-07-08 16:23:06,421 INFO L280 TraceCheckUtils]: 72: Hoare triple {222085#(= main_~lk7~0 1)} assume 1 != ~lk7~0; {222082#false} is VALID [2020-07-08 16:23:06,421 INFO L280 TraceCheckUtils]: 73: Hoare triple {222082#false} assume !false; {222082#false} is VALID [2020-07-08 16:23:06,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:23:06,423 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:23:06,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802928487] [2020-07-08 16:23:06,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:23:06,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:23:06,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449618258] [2020-07-08 16:23:06,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-08 16:23:06,425 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:23:06,425 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:23:06,486 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:23:06,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:23:06,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:23:06,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:23:06,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:23:06,487 INFO L87 Difference]: Start difference. First operand 12075 states and 15146 transitions. Second operand 3 states. [2020-07-08 16:24:00,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:24:00,911 INFO L93 Difference]: Finished difference Result 14255 states and 17708 transitions. [2020-07-08 16:24:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:24:00,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-08 16:24:00,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:24:00,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:24:00,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2020-07-08 16:24:00,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:24:00,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2020-07-08 16:24:00,914 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 177 transitions. [2020-07-08 16:24:01,070 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 177 edges. 177 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:24:08,196 INFO L225 Difference]: With dead ends: 14255 [2020-07-08 16:24:08,197 INFO L226 Difference]: Without dead ends: 14253 [2020-07-08 16:24:08,199 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 [2020-07-08 16:24:08,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14253 states. [2020-07-08 16:24:47,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14253 to 12075. [2020-07-08 16:24:47,586 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:24:47,586 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14253 states. Second operand 12075 states. [2020-07-08 16:24:47,586 INFO L74 IsIncluded]: Start isIncluded. First operand 14253 states. Second operand 12075 states. [2020-07-08 16:24:47,586 INFO L87 Difference]: Start difference. First operand 14253 states. Second operand 12075 states. [2020-07-08 16:24:54,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:24:54,285 INFO L93 Difference]: Finished difference Result 14253 states and 17579 transitions. [2020-07-08 16:24:54,285 INFO L276 IsEmpty]: Start isEmpty. Operand 14253 states and 17579 transitions. [2020-07-08 16:24:54,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:24:54,294 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:24:54,295 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 14253 states. [2020-07-08 16:24:54,295 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 14253 states. [2020-07-08 16:25:01,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:01,165 INFO L93 Difference]: Finished difference Result 14253 states and 17579 transitions. [2020-07-08 16:25:01,165 INFO L276 IsEmpty]: Start isEmpty. Operand 14253 states and 17579 transitions. [2020-07-08 16:25:01,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:01,176 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:01,177 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:01,177 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:01,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-08 16:25:07,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 15018 transitions. [2020-07-08 16:25:07,210 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 15018 transitions. Word has length 74 [2020-07-08 16:25:07,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:07,211 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 15018 transitions. [2020-07-08 16:25:07,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:25:07,211 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 15018 transitions. [2020-07-08 16:25:28,630 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15018 edges. 15018 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:28,630 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 15018 transitions. [2020-07-08 16:25:28,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-08 16:25:28,635 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:28,635 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:25:28,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-08 16:25:28,636 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:25:28,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:28,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1847607922, now seen corresponding path program 1 times [2020-07-08 16:25:28,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:28,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760540101] [2020-07-08 16:25:28,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:28,676 INFO L280 TraceCheckUtils]: 0: Hoare triple {303254#true} assume true; {303254#true} is VALID [2020-07-08 16:25:28,676 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {303254#true} {303254#true} #247#return; {303254#true} is VALID [2020-07-08 16:25:28,676 INFO L263 TraceCheckUtils]: 0: Hoare triple {303254#true} call ULTIMATE.init(); {303254#true} is VALID [2020-07-08 16:25:28,676 INFO L280 TraceCheckUtils]: 1: Hoare triple {303254#true} assume true; {303254#true} is VALID [2020-07-08 16:25:28,677 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {303254#true} {303254#true} #247#return; {303254#true} is VALID [2020-07-08 16:25:28,677 INFO L263 TraceCheckUtils]: 3: Hoare triple {303254#true} call #t~ret10 := main(); {303254#true} is VALID [2020-07-08 16:25:28,677 INFO L280 TraceCheckUtils]: 4: Hoare triple {303254#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {303254#true} is VALID [2020-07-08 16:25:28,677 INFO L280 TraceCheckUtils]: 5: Hoare triple {303254#true} ~p1~0 := #t~nondet0; {303254#true} is VALID [2020-07-08 16:25:28,677 INFO L280 TraceCheckUtils]: 6: Hoare triple {303254#true} havoc #t~nondet0; {303254#true} is VALID [2020-07-08 16:25:28,678 INFO L280 TraceCheckUtils]: 7: Hoare triple {303254#true} havoc ~lk1~0; {303254#true} is VALID [2020-07-08 16:25:28,678 INFO L280 TraceCheckUtils]: 8: Hoare triple {303254#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {303254#true} is VALID [2020-07-08 16:25:28,678 INFO L280 TraceCheckUtils]: 9: Hoare triple {303254#true} ~p2~0 := #t~nondet1; {303254#true} is VALID [2020-07-08 16:25:28,678 INFO L280 TraceCheckUtils]: 10: Hoare triple {303254#true} havoc #t~nondet1; {303254#true} is VALID [2020-07-08 16:25:28,678 INFO L280 TraceCheckUtils]: 11: Hoare triple {303254#true} havoc ~lk2~0; {303254#true} is VALID [2020-07-08 16:25:28,679 INFO L280 TraceCheckUtils]: 12: Hoare triple {303254#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {303254#true} is VALID [2020-07-08 16:25:28,679 INFO L280 TraceCheckUtils]: 13: Hoare triple {303254#true} ~p3~0 := #t~nondet2; {303254#true} is VALID [2020-07-08 16:25:28,679 INFO L280 TraceCheckUtils]: 14: Hoare triple {303254#true} havoc #t~nondet2; {303254#true} is VALID [2020-07-08 16:25:28,679 INFO L280 TraceCheckUtils]: 15: Hoare triple {303254#true} havoc ~lk3~0; {303254#true} is VALID [2020-07-08 16:25:28,679 INFO L280 TraceCheckUtils]: 16: Hoare triple {303254#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {303254#true} is VALID [2020-07-08 16:25:28,680 INFO L280 TraceCheckUtils]: 17: Hoare triple {303254#true} ~p4~0 := #t~nondet3; {303254#true} is VALID [2020-07-08 16:25:28,680 INFO L280 TraceCheckUtils]: 18: Hoare triple {303254#true} havoc #t~nondet3; {303254#true} is VALID [2020-07-08 16:25:28,680 INFO L280 TraceCheckUtils]: 19: Hoare triple {303254#true} havoc ~lk4~0; {303254#true} is VALID [2020-07-08 16:25:28,680 INFO L280 TraceCheckUtils]: 20: Hoare triple {303254#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {303254#true} is VALID [2020-07-08 16:25:28,680 INFO L280 TraceCheckUtils]: 21: Hoare triple {303254#true} ~p5~0 := #t~nondet4; {303254#true} is VALID [2020-07-08 16:25:28,681 INFO L280 TraceCheckUtils]: 22: Hoare triple {303254#true} havoc #t~nondet4; {303254#true} is VALID [2020-07-08 16:25:28,681 INFO L280 TraceCheckUtils]: 23: Hoare triple {303254#true} havoc ~lk5~0; {303254#true} is VALID [2020-07-08 16:25:28,681 INFO L280 TraceCheckUtils]: 24: Hoare triple {303254#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {303254#true} is VALID [2020-07-08 16:25:28,681 INFO L280 TraceCheckUtils]: 25: Hoare triple {303254#true} ~p6~0 := #t~nondet5; {303254#true} is VALID [2020-07-08 16:25:28,681 INFO L280 TraceCheckUtils]: 26: Hoare triple {303254#true} havoc #t~nondet5; {303254#true} is VALID [2020-07-08 16:25:28,682 INFO L280 TraceCheckUtils]: 27: Hoare triple {303254#true} havoc ~lk6~0; {303254#true} is VALID [2020-07-08 16:25:28,682 INFO L280 TraceCheckUtils]: 28: Hoare triple {303254#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {303254#true} is VALID [2020-07-08 16:25:28,682 INFO L280 TraceCheckUtils]: 29: Hoare triple {303254#true} ~p7~0 := #t~nondet6; {303254#true} is VALID [2020-07-08 16:25:28,682 INFO L280 TraceCheckUtils]: 30: Hoare triple {303254#true} havoc #t~nondet6; {303254#true} is VALID [2020-07-08 16:25:28,682 INFO L280 TraceCheckUtils]: 31: Hoare triple {303254#true} havoc ~lk7~0; {303254#true} is VALID [2020-07-08 16:25:28,683 INFO L280 TraceCheckUtils]: 32: Hoare triple {303254#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {303254#true} is VALID [2020-07-08 16:25:28,683 INFO L280 TraceCheckUtils]: 33: Hoare triple {303254#true} ~p8~0 := #t~nondet7; {303254#true} is VALID [2020-07-08 16:25:28,683 INFO L280 TraceCheckUtils]: 34: Hoare triple {303254#true} havoc #t~nondet7; {303254#true} is VALID [2020-07-08 16:25:28,683 INFO L280 TraceCheckUtils]: 35: Hoare triple {303254#true} havoc ~lk8~0; {303254#true} is VALID [2020-07-08 16:25:28,683 INFO L280 TraceCheckUtils]: 36: Hoare triple {303254#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {303254#true} is VALID [2020-07-08 16:25:28,684 INFO L280 TraceCheckUtils]: 37: Hoare triple {303254#true} ~p9~0 := #t~nondet8; {303254#true} is VALID [2020-07-08 16:25:28,684 INFO L280 TraceCheckUtils]: 38: Hoare triple {303254#true} havoc #t~nondet8; {303254#true} is VALID [2020-07-08 16:25:28,684 INFO L280 TraceCheckUtils]: 39: Hoare triple {303254#true} havoc ~lk9~0; {303254#true} is VALID [2020-07-08 16:25:28,684 INFO L280 TraceCheckUtils]: 40: Hoare triple {303254#true} havoc ~cond~0; {303254#true} is VALID [2020-07-08 16:25:28,684 INFO L280 TraceCheckUtils]: 41: Hoare triple {303254#true} assume !false; {303254#true} is VALID [2020-07-08 16:25:28,685 INFO L280 TraceCheckUtils]: 42: Hoare triple {303254#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {303254#true} is VALID [2020-07-08 16:25:28,685 INFO L280 TraceCheckUtils]: 43: Hoare triple {303254#true} ~cond~0 := #t~nondet9; {303254#true} is VALID [2020-07-08 16:25:28,685 INFO L280 TraceCheckUtils]: 44: Hoare triple {303254#true} havoc #t~nondet9; {303254#true} is VALID [2020-07-08 16:25:28,685 INFO L280 TraceCheckUtils]: 45: Hoare triple {303254#true} assume !(0 == ~cond~0); {303254#true} is VALID [2020-07-08 16:25:28,685 INFO L280 TraceCheckUtils]: 46: Hoare triple {303254#true} ~lk1~0 := 0; {303254#true} is VALID [2020-07-08 16:25:28,686 INFO L280 TraceCheckUtils]: 47: Hoare triple {303254#true} ~lk2~0 := 0; {303254#true} is VALID [2020-07-08 16:25:28,686 INFO L280 TraceCheckUtils]: 48: Hoare triple {303254#true} ~lk3~0 := 0; {303254#true} is VALID [2020-07-08 16:25:28,686 INFO L280 TraceCheckUtils]: 49: Hoare triple {303254#true} ~lk4~0 := 0; {303254#true} is VALID [2020-07-08 16:25:28,686 INFO L280 TraceCheckUtils]: 50: Hoare triple {303254#true} ~lk5~0 := 0; {303254#true} is VALID [2020-07-08 16:25:28,686 INFO L280 TraceCheckUtils]: 51: Hoare triple {303254#true} ~lk6~0 := 0; {303254#true} is VALID [2020-07-08 16:25:28,687 INFO L280 TraceCheckUtils]: 52: Hoare triple {303254#true} ~lk7~0 := 0; {303254#true} is VALID [2020-07-08 16:25:28,687 INFO L280 TraceCheckUtils]: 53: Hoare triple {303254#true} ~lk8~0 := 0; {303254#true} is VALID [2020-07-08 16:25:28,687 INFO L280 TraceCheckUtils]: 54: Hoare triple {303254#true} ~lk9~0 := 0; {303254#true} is VALID [2020-07-08 16:25:28,687 INFO L280 TraceCheckUtils]: 55: Hoare triple {303254#true} assume !(0 != ~p1~0); {303254#true} is VALID [2020-07-08 16:25:28,687 INFO L280 TraceCheckUtils]: 56: Hoare triple {303254#true} assume !(0 != ~p2~0); {303254#true} is VALID [2020-07-08 16:25:28,688 INFO L280 TraceCheckUtils]: 57: Hoare triple {303254#true} assume !(0 != ~p3~0); {303254#true} is VALID [2020-07-08 16:25:28,688 INFO L280 TraceCheckUtils]: 58: Hoare triple {303254#true} assume !(0 != ~p4~0); {303254#true} is VALID [2020-07-08 16:25:28,688 INFO L280 TraceCheckUtils]: 59: Hoare triple {303254#true} assume !(0 != ~p5~0); {303254#true} is VALID [2020-07-08 16:25:28,688 INFO L280 TraceCheckUtils]: 60: Hoare triple {303254#true} assume !(0 != ~p6~0); {303254#true} is VALID [2020-07-08 16:25:28,688 INFO L280 TraceCheckUtils]: 61: Hoare triple {303254#true} assume !(0 != ~p7~0); {303254#true} is VALID [2020-07-08 16:25:28,689 INFO L280 TraceCheckUtils]: 62: Hoare triple {303254#true} assume 0 != ~p8~0; {303254#true} is VALID [2020-07-08 16:25:28,689 INFO L280 TraceCheckUtils]: 63: Hoare triple {303254#true} ~lk8~0 := 1; {303258#(= 1 main_~lk8~0)} is VALID [2020-07-08 16:25:28,690 INFO L280 TraceCheckUtils]: 64: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p9~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-08 16:25:28,690 INFO L280 TraceCheckUtils]: 65: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p1~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-08 16:25:28,691 INFO L280 TraceCheckUtils]: 66: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p2~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-08 16:25:28,691 INFO L280 TraceCheckUtils]: 67: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p3~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-08 16:25:28,692 INFO L280 TraceCheckUtils]: 68: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p4~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-08 16:25:28,692 INFO L280 TraceCheckUtils]: 69: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p5~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-08 16:25:28,693 INFO L280 TraceCheckUtils]: 70: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p6~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-08 16:25:28,693 INFO L280 TraceCheckUtils]: 71: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p7~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-08 16:25:28,694 INFO L280 TraceCheckUtils]: 72: Hoare triple {303258#(= 1 main_~lk8~0)} assume 0 != ~p8~0; {303258#(= 1 main_~lk8~0)} is VALID [2020-07-08 16:25:28,694 INFO L280 TraceCheckUtils]: 73: Hoare triple {303258#(= 1 main_~lk8~0)} assume 1 != ~lk8~0; {303255#false} is VALID [2020-07-08 16:25:28,695 INFO L280 TraceCheckUtils]: 74: Hoare triple {303255#false} assume !false; {303255#false} is VALID [2020-07-08 16:25:28,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:25:28,698 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:28,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760540101] [2020-07-08 16:25:28,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:28,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:25:28,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635165299] [2020-07-08 16:25:28,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-08 16:25:28,700 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:28,700 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:25:28,764 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:25:28,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:25:28,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:28,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:25:28,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:25:28,765 INFO L87 Difference]: Start difference. First operand 12075 states and 15018 transitions. Second operand 3 states. [2020-07-08 16:26:23,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:23,695 INFO L93 Difference]: Finished difference Result 14127 states and 17324 transitions. [2020-07-08 16:26:23,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:26:23,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-08 16:26:23,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:26:23,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:26:23,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2020-07-08 16:26:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:26:23,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2020-07-08 16:26:23,698 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 173 transitions. [2020-07-08 16:26:23,849 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:30,552 INFO L225 Difference]: With dead ends: 14127 [2020-07-08 16:26:30,552 INFO L226 Difference]: Without dead ends: 14125 [2020-07-08 16:26:30,554 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 [2020-07-08 16:26:30,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14125 states. [2020-07-08 16:27:14,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14125 to 12075. [2020-07-08 16:27:14,389 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:27:14,389 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14125 states. Second operand 12075 states. [2020-07-08 16:27:14,389 INFO L74 IsIncluded]: Start isIncluded. First operand 14125 states. Second operand 12075 states. [2020-07-08 16:27:14,389 INFO L87 Difference]: Start difference. First operand 14125 states. Second operand 12075 states. [2020-07-08 16:27:21,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:27:21,058 INFO L93 Difference]: Finished difference Result 14125 states and 17195 transitions. [2020-07-08 16:27:21,058 INFO L276 IsEmpty]: Start isEmpty. Operand 14125 states and 17195 transitions. [2020-07-08 16:27:21,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:27:21,071 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:27:21,071 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 14125 states. [2020-07-08 16:27:21,071 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 14125 states. [2020-07-08 16:27:27,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:27:27,977 INFO L93 Difference]: Finished difference Result 14125 states and 17195 transitions. [2020-07-08 16:27:27,977 INFO L276 IsEmpty]: Start isEmpty. Operand 14125 states and 17195 transitions. [2020-07-08 16:27:27,987 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:27:27,987 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:27:27,987 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:27:27,987 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:27:27,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-08 16:27:33,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 14890 transitions. [2020-07-08 16:27:33,304 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 14890 transitions. Word has length 75 [2020-07-08 16:27:33,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:27:33,304 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 14890 transitions. [2020-07-08 16:27:33,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:27:33,305 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 14890 transitions. [2020-07-08 16:27:54,752 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14890 edges. 14890 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:27:54,752 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 14890 transitions. [2020-07-08 16:27:54,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-08 16:27:54,757 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:27:54,758 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:27:54,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-08 16:27:54,758 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:27:54,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:27:54,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1321782988, now seen corresponding path program 1 times [2020-07-08 16:27:54,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:27:54,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480401570] [2020-07-08 16:27:54,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:27:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:27:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:27:54,797 INFO L280 TraceCheckUtils]: 0: Hoare triple {383915#true} assume true; {383915#true} is VALID [2020-07-08 16:27:54,798 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {383915#true} {383915#true} #247#return; {383915#true} is VALID [2020-07-08 16:27:54,798 INFO L263 TraceCheckUtils]: 0: Hoare triple {383915#true} call ULTIMATE.init(); {383915#true} is VALID [2020-07-08 16:27:54,798 INFO L280 TraceCheckUtils]: 1: Hoare triple {383915#true} assume true; {383915#true} is VALID [2020-07-08 16:27:54,798 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {383915#true} {383915#true} #247#return; {383915#true} is VALID [2020-07-08 16:27:54,799 INFO L263 TraceCheckUtils]: 3: Hoare triple {383915#true} call #t~ret10 := main(); {383915#true} is VALID [2020-07-08 16:27:54,799 INFO L280 TraceCheckUtils]: 4: Hoare triple {383915#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {383915#true} is VALID [2020-07-08 16:27:54,799 INFO L280 TraceCheckUtils]: 5: Hoare triple {383915#true} ~p1~0 := #t~nondet0; {383915#true} is VALID [2020-07-08 16:27:54,799 INFO L280 TraceCheckUtils]: 6: Hoare triple {383915#true} havoc #t~nondet0; {383915#true} is VALID [2020-07-08 16:27:54,799 INFO L280 TraceCheckUtils]: 7: Hoare triple {383915#true} havoc ~lk1~0; {383915#true} is VALID [2020-07-08 16:27:54,800 INFO L280 TraceCheckUtils]: 8: Hoare triple {383915#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {383915#true} is VALID [2020-07-08 16:27:54,800 INFO L280 TraceCheckUtils]: 9: Hoare triple {383915#true} ~p2~0 := #t~nondet1; {383915#true} is VALID [2020-07-08 16:27:54,800 INFO L280 TraceCheckUtils]: 10: Hoare triple {383915#true} havoc #t~nondet1; {383915#true} is VALID [2020-07-08 16:27:54,800 INFO L280 TraceCheckUtils]: 11: Hoare triple {383915#true} havoc ~lk2~0; {383915#true} is VALID [2020-07-08 16:27:54,800 INFO L280 TraceCheckUtils]: 12: Hoare triple {383915#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {383915#true} is VALID [2020-07-08 16:27:54,800 INFO L280 TraceCheckUtils]: 13: Hoare triple {383915#true} ~p3~0 := #t~nondet2; {383915#true} is VALID [2020-07-08 16:27:54,801 INFO L280 TraceCheckUtils]: 14: Hoare triple {383915#true} havoc #t~nondet2; {383915#true} is VALID [2020-07-08 16:27:54,801 INFO L280 TraceCheckUtils]: 15: Hoare triple {383915#true} havoc ~lk3~0; {383915#true} is VALID [2020-07-08 16:27:54,801 INFO L280 TraceCheckUtils]: 16: Hoare triple {383915#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {383915#true} is VALID [2020-07-08 16:27:54,801 INFO L280 TraceCheckUtils]: 17: Hoare triple {383915#true} ~p4~0 := #t~nondet3; {383915#true} is VALID [2020-07-08 16:27:54,801 INFO L280 TraceCheckUtils]: 18: Hoare triple {383915#true} havoc #t~nondet3; {383915#true} is VALID [2020-07-08 16:27:54,802 INFO L280 TraceCheckUtils]: 19: Hoare triple {383915#true} havoc ~lk4~0; {383915#true} is VALID [2020-07-08 16:27:54,802 INFO L280 TraceCheckUtils]: 20: Hoare triple {383915#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {383915#true} is VALID [2020-07-08 16:27:54,802 INFO L280 TraceCheckUtils]: 21: Hoare triple {383915#true} ~p5~0 := #t~nondet4; {383915#true} is VALID [2020-07-08 16:27:54,802 INFO L280 TraceCheckUtils]: 22: Hoare triple {383915#true} havoc #t~nondet4; {383915#true} is VALID [2020-07-08 16:27:54,802 INFO L280 TraceCheckUtils]: 23: Hoare triple {383915#true} havoc ~lk5~0; {383915#true} is VALID [2020-07-08 16:27:54,803 INFO L280 TraceCheckUtils]: 24: Hoare triple {383915#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {383915#true} is VALID [2020-07-08 16:27:54,803 INFO L280 TraceCheckUtils]: 25: Hoare triple {383915#true} ~p6~0 := #t~nondet5; {383915#true} is VALID [2020-07-08 16:27:54,803 INFO L280 TraceCheckUtils]: 26: Hoare triple {383915#true} havoc #t~nondet5; {383915#true} is VALID [2020-07-08 16:27:54,803 INFO L280 TraceCheckUtils]: 27: Hoare triple {383915#true} havoc ~lk6~0; {383915#true} is VALID [2020-07-08 16:27:54,803 INFO L280 TraceCheckUtils]: 28: Hoare triple {383915#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {383915#true} is VALID [2020-07-08 16:27:54,803 INFO L280 TraceCheckUtils]: 29: Hoare triple {383915#true} ~p7~0 := #t~nondet6; {383915#true} is VALID [2020-07-08 16:27:54,804 INFO L280 TraceCheckUtils]: 30: Hoare triple {383915#true} havoc #t~nondet6; {383915#true} is VALID [2020-07-08 16:27:54,804 INFO L280 TraceCheckUtils]: 31: Hoare triple {383915#true} havoc ~lk7~0; {383915#true} is VALID [2020-07-08 16:27:54,804 INFO L280 TraceCheckUtils]: 32: Hoare triple {383915#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {383915#true} is VALID [2020-07-08 16:27:54,804 INFO L280 TraceCheckUtils]: 33: Hoare triple {383915#true} ~p8~0 := #t~nondet7; {383915#true} is VALID [2020-07-08 16:27:54,804 INFO L280 TraceCheckUtils]: 34: Hoare triple {383915#true} havoc #t~nondet7; {383915#true} is VALID [2020-07-08 16:27:54,805 INFO L280 TraceCheckUtils]: 35: Hoare triple {383915#true} havoc ~lk8~0; {383915#true} is VALID [2020-07-08 16:27:54,805 INFO L280 TraceCheckUtils]: 36: Hoare triple {383915#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {383915#true} is VALID [2020-07-08 16:27:54,805 INFO L280 TraceCheckUtils]: 37: Hoare triple {383915#true} ~p9~0 := #t~nondet8; {383915#true} is VALID [2020-07-08 16:27:54,805 INFO L280 TraceCheckUtils]: 38: Hoare triple {383915#true} havoc #t~nondet8; {383915#true} is VALID [2020-07-08 16:27:54,805 INFO L280 TraceCheckUtils]: 39: Hoare triple {383915#true} havoc ~lk9~0; {383915#true} is VALID [2020-07-08 16:27:54,805 INFO L280 TraceCheckUtils]: 40: Hoare triple {383915#true} havoc ~cond~0; {383915#true} is VALID [2020-07-08 16:27:54,806 INFO L280 TraceCheckUtils]: 41: Hoare triple {383915#true} assume !false; {383915#true} is VALID [2020-07-08 16:27:54,806 INFO L280 TraceCheckUtils]: 42: Hoare triple {383915#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {383915#true} is VALID [2020-07-08 16:27:54,806 INFO L280 TraceCheckUtils]: 43: Hoare triple {383915#true} ~cond~0 := #t~nondet9; {383915#true} is VALID [2020-07-08 16:27:54,806 INFO L280 TraceCheckUtils]: 44: Hoare triple {383915#true} havoc #t~nondet9; {383915#true} is VALID [2020-07-08 16:27:54,806 INFO L280 TraceCheckUtils]: 45: Hoare triple {383915#true} assume !(0 == ~cond~0); {383915#true} is VALID [2020-07-08 16:27:54,807 INFO L280 TraceCheckUtils]: 46: Hoare triple {383915#true} ~lk1~0 := 0; {383915#true} is VALID [2020-07-08 16:27:54,807 INFO L280 TraceCheckUtils]: 47: Hoare triple {383915#true} ~lk2~0 := 0; {383915#true} is VALID [2020-07-08 16:27:54,807 INFO L280 TraceCheckUtils]: 48: Hoare triple {383915#true} ~lk3~0 := 0; {383915#true} is VALID [2020-07-08 16:27:54,807 INFO L280 TraceCheckUtils]: 49: Hoare triple {383915#true} ~lk4~0 := 0; {383915#true} is VALID [2020-07-08 16:27:54,807 INFO L280 TraceCheckUtils]: 50: Hoare triple {383915#true} ~lk5~0 := 0; {383915#true} is VALID [2020-07-08 16:27:54,808 INFO L280 TraceCheckUtils]: 51: Hoare triple {383915#true} ~lk6~0 := 0; {383915#true} is VALID [2020-07-08 16:27:54,808 INFO L280 TraceCheckUtils]: 52: Hoare triple {383915#true} ~lk7~0 := 0; {383915#true} is VALID [2020-07-08 16:27:54,808 INFO L280 TraceCheckUtils]: 53: Hoare triple {383915#true} ~lk8~0 := 0; {383915#true} is VALID [2020-07-08 16:27:54,808 INFO L280 TraceCheckUtils]: 54: Hoare triple {383915#true} ~lk9~0 := 0; {383915#true} is VALID [2020-07-08 16:27:54,808 INFO L280 TraceCheckUtils]: 55: Hoare triple {383915#true} assume !(0 != ~p1~0); {383915#true} is VALID [2020-07-08 16:27:54,809 INFO L280 TraceCheckUtils]: 56: Hoare triple {383915#true} assume !(0 != ~p2~0); {383915#true} is VALID [2020-07-08 16:27:54,809 INFO L280 TraceCheckUtils]: 57: Hoare triple {383915#true} assume !(0 != ~p3~0); {383915#true} is VALID [2020-07-08 16:27:54,809 INFO L280 TraceCheckUtils]: 58: Hoare triple {383915#true} assume !(0 != ~p4~0); {383915#true} is VALID [2020-07-08 16:27:54,809 INFO L280 TraceCheckUtils]: 59: Hoare triple {383915#true} assume !(0 != ~p5~0); {383915#true} is VALID [2020-07-08 16:27:54,809 INFO L280 TraceCheckUtils]: 60: Hoare triple {383915#true} assume !(0 != ~p6~0); {383915#true} is VALID [2020-07-08 16:27:54,809 INFO L280 TraceCheckUtils]: 61: Hoare triple {383915#true} assume !(0 != ~p7~0); {383915#true} is VALID [2020-07-08 16:27:54,810 INFO L280 TraceCheckUtils]: 62: Hoare triple {383915#true} assume !(0 != ~p8~0); {383915#true} is VALID [2020-07-08 16:27:54,816 INFO L280 TraceCheckUtils]: 63: Hoare triple {383915#true} assume !(0 != ~p9~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-08 16:27:54,817 INFO L280 TraceCheckUtils]: 64: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p1~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-08 16:27:54,817 INFO L280 TraceCheckUtils]: 65: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p2~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-08 16:27:54,818 INFO L280 TraceCheckUtils]: 66: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p3~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-08 16:27:54,819 INFO L280 TraceCheckUtils]: 67: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p4~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-08 16:27:54,819 INFO L280 TraceCheckUtils]: 68: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p5~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-08 16:27:54,820 INFO L280 TraceCheckUtils]: 69: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p6~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-08 16:27:54,821 INFO L280 TraceCheckUtils]: 70: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p7~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-08 16:27:54,821 INFO L280 TraceCheckUtils]: 71: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p8~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-08 16:27:54,822 INFO L280 TraceCheckUtils]: 72: Hoare triple {383919#(= 0 main_~p9~0)} assume 0 != ~p9~0; {383916#false} is VALID [2020-07-08 16:27:54,823 INFO L280 TraceCheckUtils]: 73: Hoare triple {383916#false} assume 1 != ~lk9~0; {383916#false} is VALID [2020-07-08 16:27:54,823 INFO L280 TraceCheckUtils]: 74: Hoare triple {383916#false} assume !false; {383916#false} is VALID [2020-07-08 16:27:54,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:27:54,826 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:27:54,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480401570] [2020-07-08 16:27:54,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:27:54,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:27:54,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728692382] [2020-07-08 16:27:54,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-08 16:27:54,828 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:27:54,828 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:27:54,896 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:27:54,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:27:54,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:27:54,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:27:54,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:27:54,898 INFO L87 Difference]: Start difference. First operand 12075 states and 14890 transitions. Second operand 3 states.