/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/locks/test_locks_9.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 22:16:25,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 22:16:25,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 22:16:25,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 22:16:25,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 22:16:25,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 22:16:25,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 22:16:25,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 22:16:25,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 22:16:25,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 22:16:25,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 22:16:25,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 22:16:25,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 22:16:25,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 22:16:25,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 22:16:25,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 22:16:25,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 22:16:25,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 22:16:25,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 22:16:25,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 22:16:25,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 22:16:25,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 22:16:25,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 22:16:25,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 22:16:25,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 22:16:25,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 22:16:25,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 22:16:25,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 22:16:25,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 22:16:25,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 22:16:25,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 22:16:25,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 22:16:25,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 22:16:25,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 22:16:25,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 22:16:25,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 22:16:25,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 22:16:25,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 22:16:25,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 22:16:25,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 22:16:25,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 22:16:25,130 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 22:16:25,143 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 22:16:25,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 22:16:25,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 22:16:25,146 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 22:16:25,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 22:16:25,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 22:16:25,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 22:16:25,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 22:16:25,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 22:16:25,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 22:16:25,148 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 22:16:25,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 22:16:25,148 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 22:16:25,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 22:16:25,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 22:16:25,149 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 22:16:25,150 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 22:16:25,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 22:16:25,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 22:16:25,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 22:16:25,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 22:16:25,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 22:16:25,151 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-08 22:16:25,431 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 22:16:25,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 22:16:25,449 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 22:16:25,450 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 22:16:25,451 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 22:16:25,451 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_9.c [2020-07-08 22:16:25,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fa3318cf/af0cc32d07ce49ffbe6ca4983c398a63/FLAG26e83aa8a [2020-07-08 22:16:26,050 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 22:16:26,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_9.c [2020-07-08 22:16:26,059 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fa3318cf/af0cc32d07ce49ffbe6ca4983c398a63/FLAG26e83aa8a [2020-07-08 22:16:26,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fa3318cf/af0cc32d07ce49ffbe6ca4983c398a63 [2020-07-08 22:16:26,382 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 22:16:26,384 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 22:16:26,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 22:16:26,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 22:16:26,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 22:16:26,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 10:16:26" (1/1) ... [2020-07-08 22:16:26,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1279cfc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:16:26, skipping insertion in model container [2020-07-08 22:16:26,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 10:16:26" (1/1) ... [2020-07-08 22:16:26,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 22:16:26,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 22:16:26,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 22:16:26,625 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 22:16:26,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 22:16:26,704 INFO L208 MainTranslator]: Completed translation [2020-07-08 22:16:26,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:16:26 WrapperNode [2020-07-08 22:16:26,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 22:16:26,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 22:16:26,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 22:16:26,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 22:16:26,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:16:26" (1/1) ... [2020-07-08 22:16:26,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:16:26" (1/1) ... [2020-07-08 22:16:26,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:16:26" (1/1) ... [2020-07-08 22:16:26,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:16:26" (1/1) ... [2020-07-08 22:16:26,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:16:26" (1/1) ... [2020-07-08 22:16:26,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:16:26" (1/1) ... [2020-07-08 22:16:26,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:16:26" (1/1) ... [2020-07-08 22:16:26,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 22:16:26,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 22:16:26,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 22:16:26,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 22:16:26,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:16:26" (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 22:16:26,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 22:16:26,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 22:16:26,915 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 22:16:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 22:16:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 22:16:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 22:16:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 22:16:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 22:16:27,534 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 22:16:27,534 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-08 22:16:27,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 10:16:27 BoogieIcfgContainer [2020-07-08 22:16:27,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 22:16:27,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 22:16:27,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 22:16:27,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 22:16:27,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 10:16:26" (1/3) ... [2020-07-08 22:16:27,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305a87a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 10:16:27, skipping insertion in model container [2020-07-08 22:16:27,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:16:26" (2/3) ... [2020-07-08 22:16:27,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305a87a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 10:16:27, skipping insertion in model container [2020-07-08 22:16:27,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 10:16:27" (3/3) ... [2020-07-08 22:16:27,550 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_9.c [2020-07-08 22:16:27,562 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 22:16:27,571 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 22:16:27,586 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 22:16:27,612 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 22:16:27,612 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 22:16:27,612 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 22:16:27,612 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 22:16:27,613 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 22:16:27,613 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 22:16:27,613 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 22:16:27,614 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 22:16:27,633 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2020-07-08 22:16:27,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-08 22:16:27,648 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:16:27,650 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 22:16:27,650 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:16:27,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:16:27,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1511648252, now seen corresponding path program 1 times [2020-07-08 22:16:27,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:16:27,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254053897] [2020-07-08 22:16:27,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:16:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:27,930 INFO L280 TraceCheckUtils]: 0: Hoare triple {111#true} assume true; {111#true} is VALID [2020-07-08 22:16:27,931 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {111#true} {111#true} #247#return; {111#true} is VALID [2020-07-08 22:16:27,933 INFO L263 TraceCheckUtils]: 0: Hoare triple {111#true} call ULTIMATE.init(); {111#true} is VALID [2020-07-08 22:16:27,934 INFO L280 TraceCheckUtils]: 1: Hoare triple {111#true} assume true; {111#true} is VALID [2020-07-08 22:16:27,935 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {111#true} {111#true} #247#return; {111#true} is VALID [2020-07-08 22:16:27,935 INFO L263 TraceCheckUtils]: 3: Hoare triple {111#true} call #t~ret10 := main(); {111#true} is VALID [2020-07-08 22:16:27,936 INFO L280 TraceCheckUtils]: 4: Hoare triple {111#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {111#true} is VALID [2020-07-08 22:16:27,936 INFO L280 TraceCheckUtils]: 5: Hoare triple {111#true} ~p1~0 := #t~nondet0; {111#true} is VALID [2020-07-08 22:16:27,937 INFO L280 TraceCheckUtils]: 6: Hoare triple {111#true} havoc #t~nondet0; {111#true} is VALID [2020-07-08 22:16:27,937 INFO L280 TraceCheckUtils]: 7: Hoare triple {111#true} havoc ~lk1~0; {111#true} is VALID [2020-07-08 22:16:27,937 INFO L280 TraceCheckUtils]: 8: Hoare triple {111#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {111#true} is VALID [2020-07-08 22:16:27,938 INFO L280 TraceCheckUtils]: 9: Hoare triple {111#true} ~p2~0 := #t~nondet1; {111#true} is VALID [2020-07-08 22:16:27,938 INFO L280 TraceCheckUtils]: 10: Hoare triple {111#true} havoc #t~nondet1; {111#true} is VALID [2020-07-08 22:16:27,939 INFO L280 TraceCheckUtils]: 11: Hoare triple {111#true} havoc ~lk2~0; {111#true} is VALID [2020-07-08 22:16:27,939 INFO L280 TraceCheckUtils]: 12: Hoare triple {111#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {111#true} is VALID [2020-07-08 22:16:27,939 INFO L280 TraceCheckUtils]: 13: Hoare triple {111#true} ~p3~0 := #t~nondet2; {111#true} is VALID [2020-07-08 22:16:27,940 INFO L280 TraceCheckUtils]: 14: Hoare triple {111#true} havoc #t~nondet2; {111#true} is VALID [2020-07-08 22:16:27,940 INFO L280 TraceCheckUtils]: 15: Hoare triple {111#true} havoc ~lk3~0; {111#true} is VALID [2020-07-08 22:16:27,941 INFO L280 TraceCheckUtils]: 16: Hoare triple {111#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {111#true} is VALID [2020-07-08 22:16:27,941 INFO L280 TraceCheckUtils]: 17: Hoare triple {111#true} ~p4~0 := #t~nondet3; {111#true} is VALID [2020-07-08 22:16:27,941 INFO L280 TraceCheckUtils]: 18: Hoare triple {111#true} havoc #t~nondet3; {111#true} is VALID [2020-07-08 22:16:27,942 INFO L280 TraceCheckUtils]: 19: Hoare triple {111#true} havoc ~lk4~0; {111#true} is VALID [2020-07-08 22:16:27,942 INFO L280 TraceCheckUtils]: 20: Hoare triple {111#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {111#true} is VALID [2020-07-08 22:16:27,942 INFO L280 TraceCheckUtils]: 21: Hoare triple {111#true} ~p5~0 := #t~nondet4; {111#true} is VALID [2020-07-08 22:16:27,943 INFO L280 TraceCheckUtils]: 22: Hoare triple {111#true} havoc #t~nondet4; {111#true} is VALID [2020-07-08 22:16:27,943 INFO L280 TraceCheckUtils]: 23: Hoare triple {111#true} havoc ~lk5~0; {111#true} is VALID [2020-07-08 22:16:27,944 INFO L280 TraceCheckUtils]: 24: Hoare triple {111#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {111#true} is VALID [2020-07-08 22:16:27,944 INFO L280 TraceCheckUtils]: 25: Hoare triple {111#true} ~p6~0 := #t~nondet5; {111#true} is VALID [2020-07-08 22:16:27,945 INFO L280 TraceCheckUtils]: 26: Hoare triple {111#true} havoc #t~nondet5; {111#true} is VALID [2020-07-08 22:16:27,945 INFO L280 TraceCheckUtils]: 27: Hoare triple {111#true} havoc ~lk6~0; {111#true} is VALID [2020-07-08 22:16:27,945 INFO L280 TraceCheckUtils]: 28: Hoare triple {111#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {111#true} is VALID [2020-07-08 22:16:27,946 INFO L280 TraceCheckUtils]: 29: Hoare triple {111#true} ~p7~0 := #t~nondet6; {111#true} is VALID [2020-07-08 22:16:27,946 INFO L280 TraceCheckUtils]: 30: Hoare triple {111#true} havoc #t~nondet6; {111#true} is VALID [2020-07-08 22:16:27,946 INFO L280 TraceCheckUtils]: 31: Hoare triple {111#true} havoc ~lk7~0; {111#true} is VALID [2020-07-08 22:16:27,947 INFO L280 TraceCheckUtils]: 32: Hoare triple {111#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {111#true} is VALID [2020-07-08 22:16:27,947 INFO L280 TraceCheckUtils]: 33: Hoare triple {111#true} ~p8~0 := #t~nondet7; {111#true} is VALID [2020-07-08 22:16:27,948 INFO L280 TraceCheckUtils]: 34: Hoare triple {111#true} havoc #t~nondet7; {111#true} is VALID [2020-07-08 22:16:27,948 INFO L280 TraceCheckUtils]: 35: Hoare triple {111#true} havoc ~lk8~0; {111#true} is VALID [2020-07-08 22:16:27,949 INFO L280 TraceCheckUtils]: 36: Hoare triple {111#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {111#true} is VALID [2020-07-08 22:16:27,949 INFO L280 TraceCheckUtils]: 37: Hoare triple {111#true} ~p9~0 := #t~nondet8; {111#true} is VALID [2020-07-08 22:16:27,949 INFO L280 TraceCheckUtils]: 38: Hoare triple {111#true} havoc #t~nondet8; {111#true} is VALID [2020-07-08 22:16:27,950 INFO L280 TraceCheckUtils]: 39: Hoare triple {111#true} havoc ~lk9~0; {111#true} is VALID [2020-07-08 22:16:27,950 INFO L280 TraceCheckUtils]: 40: Hoare triple {111#true} havoc ~cond~0; {111#true} is VALID [2020-07-08 22:16:27,950 INFO L280 TraceCheckUtils]: 41: Hoare triple {111#true} assume !false; {111#true} is VALID [2020-07-08 22:16:27,951 INFO L280 TraceCheckUtils]: 42: Hoare triple {111#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {111#true} is VALID [2020-07-08 22:16:27,951 INFO L280 TraceCheckUtils]: 43: Hoare triple {111#true} ~cond~0 := #t~nondet9; {111#true} is VALID [2020-07-08 22:16:27,951 INFO L280 TraceCheckUtils]: 44: Hoare triple {111#true} havoc #t~nondet9; {111#true} is VALID [2020-07-08 22:16:27,952 INFO L280 TraceCheckUtils]: 45: Hoare triple {111#true} assume !(0 == ~cond~0); {111#true} is VALID [2020-07-08 22:16:27,952 INFO L280 TraceCheckUtils]: 46: Hoare triple {111#true} ~lk1~0 := 0; {111#true} is VALID [2020-07-08 22:16:27,952 INFO L280 TraceCheckUtils]: 47: Hoare triple {111#true} ~lk2~0 := 0; {111#true} is VALID [2020-07-08 22:16:27,953 INFO L280 TraceCheckUtils]: 48: Hoare triple {111#true} ~lk3~0 := 0; {111#true} is VALID [2020-07-08 22:16:27,953 INFO L280 TraceCheckUtils]: 49: Hoare triple {111#true} ~lk4~0 := 0; {111#true} is VALID [2020-07-08 22:16:27,953 INFO L280 TraceCheckUtils]: 50: Hoare triple {111#true} ~lk5~0 := 0; {111#true} is VALID [2020-07-08 22:16:27,954 INFO L280 TraceCheckUtils]: 51: Hoare triple {111#true} ~lk6~0 := 0; {111#true} is VALID [2020-07-08 22:16:27,954 INFO L280 TraceCheckUtils]: 52: Hoare triple {111#true} ~lk7~0 := 0; {111#true} is VALID [2020-07-08 22:16:27,954 INFO L280 TraceCheckUtils]: 53: Hoare triple {111#true} ~lk8~0 := 0; {111#true} is VALID [2020-07-08 22:16:27,955 INFO L280 TraceCheckUtils]: 54: Hoare triple {111#true} ~lk9~0 := 0; {111#true} is VALID [2020-07-08 22:16:27,956 INFO L280 TraceCheckUtils]: 55: Hoare triple {111#true} assume !(0 != ~p1~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-08 22:16:27,960 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 22:16:27,961 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 22:16:27,962 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 22:16:27,963 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 22:16:27,963 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 22:16:27,964 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 22:16:27,965 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 22:16:27,966 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 22:16:27,967 INFO L280 TraceCheckUtils]: 64: Hoare triple {115#(= 0 main_~p1~0)} assume 0 != ~p1~0; {112#false} is VALID [2020-07-08 22:16:27,968 INFO L280 TraceCheckUtils]: 65: Hoare triple {112#false} assume 1 != ~lk1~0; {112#false} is VALID [2020-07-08 22:16:27,968 INFO L280 TraceCheckUtils]: 66: Hoare triple {112#false} assume !false; {112#false} is VALID [2020-07-08 22:16:27,980 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 22:16:27,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254053897] [2020-07-08 22:16:27,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:16:27,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:16:27,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703936899] [2020-07-08 22:16:27,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-08 22:16:27,995 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:16:27,999 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:16:28,119 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 22:16:28,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:16:28,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:16:28,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:16:28,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:16:28,131 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 3 states. [2020-07-08 22:16:28,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:28,794 INFO L93 Difference]: Finished difference Result 235 states and 322 transitions. [2020-07-08 22:16:28,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:16:28,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-08 22:16:28,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:16:28,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:28,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2020-07-08 22:16:28,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:28,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2020-07-08 22:16:28,833 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 322 transitions. [2020-07-08 22:16:29,265 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 22:16:29,304 INFO L225 Difference]: With dead ends: 235 [2020-07-08 22:16:29,305 INFO L226 Difference]: Without dead ends: 160 [2020-07-08 22:16:29,316 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 22:16:29,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-08 22:16:29,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2020-07-08 22:16:29,523 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:16:29,524 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 158 states. [2020-07-08 22:16:29,525 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 158 states. [2020-07-08 22:16:29,525 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 158 states. [2020-07-08 22:16:29,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:29,537 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2020-07-08 22:16:29,537 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2020-07-08 22:16:29,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:29,540 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:29,540 INFO L74 IsIncluded]: Start isIncluded. First operand 158 states. Second operand 160 states. [2020-07-08 22:16:29,540 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 160 states. [2020-07-08 22:16:29,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:29,552 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2020-07-08 22:16:29,552 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2020-07-08 22:16:29,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:29,554 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:29,554 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:16:29,555 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:16:29,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-07-08 22:16:29,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2020-07-08 22:16:29,565 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 67 [2020-07-08 22:16:29,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:16:29,566 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2020-07-08 22:16:29,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:16:29,566 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 158 states and 208 transitions. [2020-07-08 22:16:29,779 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 22:16:29,779 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2020-07-08 22:16:29,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-08 22:16:29,782 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:16:29,782 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 22:16:29,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 22:16:29,783 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:16:29,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:16:29,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1267771135, now seen corresponding path program 1 times [2020-07-08 22:16:29,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:16:29,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669254096] [2020-07-08 22:16:29,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:16:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:29,862 INFO L280 TraceCheckUtils]: 0: Hoare triple {1224#true} assume true; {1224#true} is VALID [2020-07-08 22:16:29,862 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1224#true} {1224#true} #247#return; {1224#true} is VALID [2020-07-08 22:16:29,863 INFO L263 TraceCheckUtils]: 0: Hoare triple {1224#true} call ULTIMATE.init(); {1224#true} is VALID [2020-07-08 22:16:29,863 INFO L280 TraceCheckUtils]: 1: Hoare triple {1224#true} assume true; {1224#true} is VALID [2020-07-08 22:16:29,863 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1224#true} {1224#true} #247#return; {1224#true} is VALID [2020-07-08 22:16:29,863 INFO L263 TraceCheckUtils]: 3: Hoare triple {1224#true} call #t~ret10 := main(); {1224#true} is VALID [2020-07-08 22:16:29,864 INFO L280 TraceCheckUtils]: 4: Hoare triple {1224#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1224#true} is VALID [2020-07-08 22:16:29,864 INFO L280 TraceCheckUtils]: 5: Hoare triple {1224#true} ~p1~0 := #t~nondet0; {1224#true} is VALID [2020-07-08 22:16:29,864 INFO L280 TraceCheckUtils]: 6: Hoare triple {1224#true} havoc #t~nondet0; {1224#true} is VALID [2020-07-08 22:16:29,865 INFO L280 TraceCheckUtils]: 7: Hoare triple {1224#true} havoc ~lk1~0; {1224#true} is VALID [2020-07-08 22:16:29,865 INFO L280 TraceCheckUtils]: 8: Hoare triple {1224#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1224#true} is VALID [2020-07-08 22:16:29,865 INFO L280 TraceCheckUtils]: 9: Hoare triple {1224#true} ~p2~0 := #t~nondet1; {1224#true} is VALID [2020-07-08 22:16:29,865 INFO L280 TraceCheckUtils]: 10: Hoare triple {1224#true} havoc #t~nondet1; {1224#true} is VALID [2020-07-08 22:16:29,866 INFO L280 TraceCheckUtils]: 11: Hoare triple {1224#true} havoc ~lk2~0; {1224#true} is VALID [2020-07-08 22:16:29,866 INFO L280 TraceCheckUtils]: 12: Hoare triple {1224#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {1224#true} is VALID [2020-07-08 22:16:29,866 INFO L280 TraceCheckUtils]: 13: Hoare triple {1224#true} ~p3~0 := #t~nondet2; {1224#true} is VALID [2020-07-08 22:16:29,866 INFO L280 TraceCheckUtils]: 14: Hoare triple {1224#true} havoc #t~nondet2; {1224#true} is VALID [2020-07-08 22:16:29,867 INFO L280 TraceCheckUtils]: 15: Hoare triple {1224#true} havoc ~lk3~0; {1224#true} is VALID [2020-07-08 22:16:29,867 INFO L280 TraceCheckUtils]: 16: Hoare triple {1224#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {1224#true} is VALID [2020-07-08 22:16:29,867 INFO L280 TraceCheckUtils]: 17: Hoare triple {1224#true} ~p4~0 := #t~nondet3; {1224#true} is VALID [2020-07-08 22:16:29,868 INFO L280 TraceCheckUtils]: 18: Hoare triple {1224#true} havoc #t~nondet3; {1224#true} is VALID [2020-07-08 22:16:29,868 INFO L280 TraceCheckUtils]: 19: Hoare triple {1224#true} havoc ~lk4~0; {1224#true} is VALID [2020-07-08 22:16:29,868 INFO L280 TraceCheckUtils]: 20: Hoare triple {1224#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {1224#true} is VALID [2020-07-08 22:16:29,868 INFO L280 TraceCheckUtils]: 21: Hoare triple {1224#true} ~p5~0 := #t~nondet4; {1224#true} is VALID [2020-07-08 22:16:29,869 INFO L280 TraceCheckUtils]: 22: Hoare triple {1224#true} havoc #t~nondet4; {1224#true} is VALID [2020-07-08 22:16:29,869 INFO L280 TraceCheckUtils]: 23: Hoare triple {1224#true} havoc ~lk5~0; {1224#true} is VALID [2020-07-08 22:16:29,869 INFO L280 TraceCheckUtils]: 24: Hoare triple {1224#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {1224#true} is VALID [2020-07-08 22:16:29,869 INFO L280 TraceCheckUtils]: 25: Hoare triple {1224#true} ~p6~0 := #t~nondet5; {1224#true} is VALID [2020-07-08 22:16:29,870 INFO L280 TraceCheckUtils]: 26: Hoare triple {1224#true} havoc #t~nondet5; {1224#true} is VALID [2020-07-08 22:16:29,870 INFO L280 TraceCheckUtils]: 27: Hoare triple {1224#true} havoc ~lk6~0; {1224#true} is VALID [2020-07-08 22:16:29,870 INFO L280 TraceCheckUtils]: 28: Hoare triple {1224#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {1224#true} is VALID [2020-07-08 22:16:29,871 INFO L280 TraceCheckUtils]: 29: Hoare triple {1224#true} ~p7~0 := #t~nondet6; {1224#true} is VALID [2020-07-08 22:16:29,871 INFO L280 TraceCheckUtils]: 30: Hoare triple {1224#true} havoc #t~nondet6; {1224#true} is VALID [2020-07-08 22:16:29,871 INFO L280 TraceCheckUtils]: 31: Hoare triple {1224#true} havoc ~lk7~0; {1224#true} is VALID [2020-07-08 22:16:29,871 INFO L280 TraceCheckUtils]: 32: Hoare triple {1224#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {1224#true} is VALID [2020-07-08 22:16:29,872 INFO L280 TraceCheckUtils]: 33: Hoare triple {1224#true} ~p8~0 := #t~nondet7; {1224#true} is VALID [2020-07-08 22:16:29,872 INFO L280 TraceCheckUtils]: 34: Hoare triple {1224#true} havoc #t~nondet7; {1224#true} is VALID [2020-07-08 22:16:29,872 INFO L280 TraceCheckUtils]: 35: Hoare triple {1224#true} havoc ~lk8~0; {1224#true} is VALID [2020-07-08 22:16:29,873 INFO L280 TraceCheckUtils]: 36: Hoare triple {1224#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {1224#true} is VALID [2020-07-08 22:16:29,873 INFO L280 TraceCheckUtils]: 37: Hoare triple {1224#true} ~p9~0 := #t~nondet8; {1224#true} is VALID [2020-07-08 22:16:29,873 INFO L280 TraceCheckUtils]: 38: Hoare triple {1224#true} havoc #t~nondet8; {1224#true} is VALID [2020-07-08 22:16:29,873 INFO L280 TraceCheckUtils]: 39: Hoare triple {1224#true} havoc ~lk9~0; {1224#true} is VALID [2020-07-08 22:16:29,874 INFO L280 TraceCheckUtils]: 40: Hoare triple {1224#true} havoc ~cond~0; {1224#true} is VALID [2020-07-08 22:16:29,874 INFO L280 TraceCheckUtils]: 41: Hoare triple {1224#true} assume !false; {1224#true} is VALID [2020-07-08 22:16:29,874 INFO L280 TraceCheckUtils]: 42: Hoare triple {1224#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {1224#true} is VALID [2020-07-08 22:16:29,874 INFO L280 TraceCheckUtils]: 43: Hoare triple {1224#true} ~cond~0 := #t~nondet9; {1224#true} is VALID [2020-07-08 22:16:29,875 INFO L280 TraceCheckUtils]: 44: Hoare triple {1224#true} havoc #t~nondet9; {1224#true} is VALID [2020-07-08 22:16:29,875 INFO L280 TraceCheckUtils]: 45: Hoare triple {1224#true} assume !(0 == ~cond~0); {1224#true} is VALID [2020-07-08 22:16:29,875 INFO L280 TraceCheckUtils]: 46: Hoare triple {1224#true} ~lk1~0 := 0; {1224#true} is VALID [2020-07-08 22:16:29,876 INFO L280 TraceCheckUtils]: 47: Hoare triple {1224#true} ~lk2~0 := 0; {1224#true} is VALID [2020-07-08 22:16:29,876 INFO L280 TraceCheckUtils]: 48: Hoare triple {1224#true} ~lk3~0 := 0; {1224#true} is VALID [2020-07-08 22:16:29,876 INFO L280 TraceCheckUtils]: 49: Hoare triple {1224#true} ~lk4~0 := 0; {1224#true} is VALID [2020-07-08 22:16:29,876 INFO L280 TraceCheckUtils]: 50: Hoare triple {1224#true} ~lk5~0 := 0; {1224#true} is VALID [2020-07-08 22:16:29,877 INFO L280 TraceCheckUtils]: 51: Hoare triple {1224#true} ~lk6~0 := 0; {1224#true} is VALID [2020-07-08 22:16:29,877 INFO L280 TraceCheckUtils]: 52: Hoare triple {1224#true} ~lk7~0 := 0; {1224#true} is VALID [2020-07-08 22:16:29,877 INFO L280 TraceCheckUtils]: 53: Hoare triple {1224#true} ~lk8~0 := 0; {1224#true} is VALID [2020-07-08 22:16:29,878 INFO L280 TraceCheckUtils]: 54: Hoare triple {1224#true} ~lk9~0 := 0; {1224#true} is VALID [2020-07-08 22:16:29,878 INFO L280 TraceCheckUtils]: 55: Hoare triple {1224#true} assume 0 != ~p1~0; {1224#true} is VALID [2020-07-08 22:16:29,879 INFO L280 TraceCheckUtils]: 56: Hoare triple {1224#true} ~lk1~0 := 1; {1228#(= 1 main_~lk1~0)} is VALID [2020-07-08 22:16:29,879 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 22:16:29,880 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 22:16:29,881 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 22:16:29,881 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 22:16:29,882 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 22:16:29,883 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 22:16:29,883 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 22:16:29,884 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 22:16:29,885 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 22:16:29,885 INFO L280 TraceCheckUtils]: 66: Hoare triple {1228#(= 1 main_~lk1~0)} assume 1 != ~lk1~0; {1225#false} is VALID [2020-07-08 22:16:29,885 INFO L280 TraceCheckUtils]: 67: Hoare triple {1225#false} assume !false; {1225#false} is VALID [2020-07-08 22:16:29,892 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 22:16:29,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669254096] [2020-07-08 22:16:29,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:16:29,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:16:29,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59095979] [2020-07-08 22:16:29,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-08 22:16:29,895 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:16:29,895 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:16:29,957 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 22:16:29,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:16:29,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:16:29,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:16:29,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:16:29,958 INFO L87 Difference]: Start difference. First operand 158 states and 208 transitions. Second operand 3 states. [2020-07-08 22:16:30,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:30,351 INFO L93 Difference]: Finished difference Result 192 states and 256 transitions. [2020-07-08 22:16:30,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:16:30,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-08 22:16:30,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:16:30,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:30,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2020-07-08 22:16:30,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:30,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2020-07-08 22:16:30,360 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 201 transitions. [2020-07-08 22:16:30,522 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 22:16:30,528 INFO L225 Difference]: With dead ends: 192 [2020-07-08 22:16:30,529 INFO L226 Difference]: Without dead ends: 190 [2020-07-08 22:16:30,530 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 22:16:30,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-07-08 22:16:30,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 158. [2020-07-08 22:16:30,662 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:16:30,662 INFO L82 GeneralOperation]: Start isEquivalent. First operand 190 states. Second operand 158 states. [2020-07-08 22:16:30,662 INFO L74 IsIncluded]: Start isIncluded. First operand 190 states. Second operand 158 states. [2020-07-08 22:16:30,662 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 158 states. [2020-07-08 22:16:30,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:30,679 INFO L93 Difference]: Finished difference Result 190 states and 254 transitions. [2020-07-08 22:16:30,679 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2020-07-08 22:16:30,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:30,681 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:30,681 INFO L74 IsIncluded]: Start isIncluded. First operand 158 states. Second operand 190 states. [2020-07-08 22:16:30,681 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 190 states. [2020-07-08 22:16:30,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:30,697 INFO L93 Difference]: Finished difference Result 190 states and 254 transitions. [2020-07-08 22:16:30,697 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2020-07-08 22:16:30,698 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:30,699 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:30,699 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:16:30,699 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:16:30,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-07-08 22:16:30,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 207 transitions. [2020-07-08 22:16:30,710 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 207 transitions. Word has length 68 [2020-07-08 22:16:30,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:16:30,711 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 207 transitions. [2020-07-08 22:16:30,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:16:30,711 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 158 states and 207 transitions. [2020-07-08 22:16:30,923 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 22:16:30,923 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 207 transitions. [2020-07-08 22:16:30,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-08 22:16:30,925 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:16:30,925 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 22:16:30,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 22:16:30,926 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:16:30,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:16:30,926 INFO L82 PathProgramCache]: Analyzing trace with hash -383300170, now seen corresponding path program 1 times [2020-07-08 22:16:30,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:16:30,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710565661] [2020-07-08 22:16:30,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:16:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:30,993 INFO L280 TraceCheckUtils]: 0: Hoare triple {2311#true} assume true; {2311#true} is VALID [2020-07-08 22:16:30,993 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2311#true} {2311#true} #247#return; {2311#true} is VALID [2020-07-08 22:16:30,993 INFO L263 TraceCheckUtils]: 0: Hoare triple {2311#true} call ULTIMATE.init(); {2311#true} is VALID [2020-07-08 22:16:30,994 INFO L280 TraceCheckUtils]: 1: Hoare triple {2311#true} assume true; {2311#true} is VALID [2020-07-08 22:16:30,994 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2311#true} {2311#true} #247#return; {2311#true} is VALID [2020-07-08 22:16:30,994 INFO L263 TraceCheckUtils]: 3: Hoare triple {2311#true} call #t~ret10 := main(); {2311#true} is VALID [2020-07-08 22:16:30,994 INFO L280 TraceCheckUtils]: 4: Hoare triple {2311#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {2311#true} is VALID [2020-07-08 22:16:30,995 INFO L280 TraceCheckUtils]: 5: Hoare triple {2311#true} ~p1~0 := #t~nondet0; {2311#true} is VALID [2020-07-08 22:16:30,995 INFO L280 TraceCheckUtils]: 6: Hoare triple {2311#true} havoc #t~nondet0; {2311#true} is VALID [2020-07-08 22:16:30,995 INFO L280 TraceCheckUtils]: 7: Hoare triple {2311#true} havoc ~lk1~0; {2311#true} is VALID [2020-07-08 22:16:30,995 INFO L280 TraceCheckUtils]: 8: Hoare triple {2311#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {2311#true} is VALID [2020-07-08 22:16:30,996 INFO L280 TraceCheckUtils]: 9: Hoare triple {2311#true} ~p2~0 := #t~nondet1; {2311#true} is VALID [2020-07-08 22:16:30,996 INFO L280 TraceCheckUtils]: 10: Hoare triple {2311#true} havoc #t~nondet1; {2311#true} is VALID [2020-07-08 22:16:30,996 INFO L280 TraceCheckUtils]: 11: Hoare triple {2311#true} havoc ~lk2~0; {2311#true} is VALID [2020-07-08 22:16:30,996 INFO L280 TraceCheckUtils]: 12: Hoare triple {2311#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {2311#true} is VALID [2020-07-08 22:16:30,996 INFO L280 TraceCheckUtils]: 13: Hoare triple {2311#true} ~p3~0 := #t~nondet2; {2311#true} is VALID [2020-07-08 22:16:30,997 INFO L280 TraceCheckUtils]: 14: Hoare triple {2311#true} havoc #t~nondet2; {2311#true} is VALID [2020-07-08 22:16:30,997 INFO L280 TraceCheckUtils]: 15: Hoare triple {2311#true} havoc ~lk3~0; {2311#true} is VALID [2020-07-08 22:16:30,997 INFO L280 TraceCheckUtils]: 16: Hoare triple {2311#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {2311#true} is VALID [2020-07-08 22:16:30,997 INFO L280 TraceCheckUtils]: 17: Hoare triple {2311#true} ~p4~0 := #t~nondet3; {2311#true} is VALID [2020-07-08 22:16:30,998 INFO L280 TraceCheckUtils]: 18: Hoare triple {2311#true} havoc #t~nondet3; {2311#true} is VALID [2020-07-08 22:16:30,998 INFO L280 TraceCheckUtils]: 19: Hoare triple {2311#true} havoc ~lk4~0; {2311#true} is VALID [2020-07-08 22:16:30,998 INFO L280 TraceCheckUtils]: 20: Hoare triple {2311#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {2311#true} is VALID [2020-07-08 22:16:30,998 INFO L280 TraceCheckUtils]: 21: Hoare triple {2311#true} ~p5~0 := #t~nondet4; {2311#true} is VALID [2020-07-08 22:16:30,999 INFO L280 TraceCheckUtils]: 22: Hoare triple {2311#true} havoc #t~nondet4; {2311#true} is VALID [2020-07-08 22:16:30,999 INFO L280 TraceCheckUtils]: 23: Hoare triple {2311#true} havoc ~lk5~0; {2311#true} is VALID [2020-07-08 22:16:30,999 INFO L280 TraceCheckUtils]: 24: Hoare triple {2311#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {2311#true} is VALID [2020-07-08 22:16:30,999 INFO L280 TraceCheckUtils]: 25: Hoare triple {2311#true} ~p6~0 := #t~nondet5; {2311#true} is VALID [2020-07-08 22:16:30,999 INFO L280 TraceCheckUtils]: 26: Hoare triple {2311#true} havoc #t~nondet5; {2311#true} is VALID [2020-07-08 22:16:31,000 INFO L280 TraceCheckUtils]: 27: Hoare triple {2311#true} havoc ~lk6~0; {2311#true} is VALID [2020-07-08 22:16:31,000 INFO L280 TraceCheckUtils]: 28: Hoare triple {2311#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {2311#true} is VALID [2020-07-08 22:16:31,000 INFO L280 TraceCheckUtils]: 29: Hoare triple {2311#true} ~p7~0 := #t~nondet6; {2311#true} is VALID [2020-07-08 22:16:31,000 INFO L280 TraceCheckUtils]: 30: Hoare triple {2311#true} havoc #t~nondet6; {2311#true} is VALID [2020-07-08 22:16:31,001 INFO L280 TraceCheckUtils]: 31: Hoare triple {2311#true} havoc ~lk7~0; {2311#true} is VALID [2020-07-08 22:16:31,001 INFO L280 TraceCheckUtils]: 32: Hoare triple {2311#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {2311#true} is VALID [2020-07-08 22:16:31,001 INFO L280 TraceCheckUtils]: 33: Hoare triple {2311#true} ~p8~0 := #t~nondet7; {2311#true} is VALID [2020-07-08 22:16:31,001 INFO L280 TraceCheckUtils]: 34: Hoare triple {2311#true} havoc #t~nondet7; {2311#true} is VALID [2020-07-08 22:16:31,002 INFO L280 TraceCheckUtils]: 35: Hoare triple {2311#true} havoc ~lk8~0; {2311#true} is VALID [2020-07-08 22:16:31,002 INFO L280 TraceCheckUtils]: 36: Hoare triple {2311#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {2311#true} is VALID [2020-07-08 22:16:31,002 INFO L280 TraceCheckUtils]: 37: Hoare triple {2311#true} ~p9~0 := #t~nondet8; {2311#true} is VALID [2020-07-08 22:16:31,002 INFO L280 TraceCheckUtils]: 38: Hoare triple {2311#true} havoc #t~nondet8; {2311#true} is VALID [2020-07-08 22:16:31,003 INFO L280 TraceCheckUtils]: 39: Hoare triple {2311#true} havoc ~lk9~0; {2311#true} is VALID [2020-07-08 22:16:31,003 INFO L280 TraceCheckUtils]: 40: Hoare triple {2311#true} havoc ~cond~0; {2311#true} is VALID [2020-07-08 22:16:31,003 INFO L280 TraceCheckUtils]: 41: Hoare triple {2311#true} assume !false; {2311#true} is VALID [2020-07-08 22:16:31,003 INFO L280 TraceCheckUtils]: 42: Hoare triple {2311#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {2311#true} is VALID [2020-07-08 22:16:31,003 INFO L280 TraceCheckUtils]: 43: Hoare triple {2311#true} ~cond~0 := #t~nondet9; {2311#true} is VALID [2020-07-08 22:16:31,004 INFO L280 TraceCheckUtils]: 44: Hoare triple {2311#true} havoc #t~nondet9; {2311#true} is VALID [2020-07-08 22:16:31,004 INFO L280 TraceCheckUtils]: 45: Hoare triple {2311#true} assume !(0 == ~cond~0); {2311#true} is VALID [2020-07-08 22:16:31,004 INFO L280 TraceCheckUtils]: 46: Hoare triple {2311#true} ~lk1~0 := 0; {2311#true} is VALID [2020-07-08 22:16:31,004 INFO L280 TraceCheckUtils]: 47: Hoare triple {2311#true} ~lk2~0 := 0; {2311#true} is VALID [2020-07-08 22:16:31,005 INFO L280 TraceCheckUtils]: 48: Hoare triple {2311#true} ~lk3~0 := 0; {2311#true} is VALID [2020-07-08 22:16:31,005 INFO L280 TraceCheckUtils]: 49: Hoare triple {2311#true} ~lk4~0 := 0; {2311#true} is VALID [2020-07-08 22:16:31,005 INFO L280 TraceCheckUtils]: 50: Hoare triple {2311#true} ~lk5~0 := 0; {2311#true} is VALID [2020-07-08 22:16:31,006 INFO L280 TraceCheckUtils]: 51: Hoare triple {2311#true} ~lk6~0 := 0; {2311#true} is VALID [2020-07-08 22:16:31,006 INFO L280 TraceCheckUtils]: 52: Hoare triple {2311#true} ~lk7~0 := 0; {2311#true} is VALID [2020-07-08 22:16:31,006 INFO L280 TraceCheckUtils]: 53: Hoare triple {2311#true} ~lk8~0 := 0; {2311#true} is VALID [2020-07-08 22:16:31,006 INFO L280 TraceCheckUtils]: 54: Hoare triple {2311#true} ~lk9~0 := 0; {2311#true} is VALID [2020-07-08 22:16:31,006 INFO L280 TraceCheckUtils]: 55: Hoare triple {2311#true} assume !(0 != ~p1~0); {2311#true} is VALID [2020-07-08 22:16:31,007 INFO L280 TraceCheckUtils]: 56: Hoare triple {2311#true} assume !(0 != ~p2~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-08 22:16:31,010 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 22:16:31,011 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 22:16:31,012 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 22:16:31,012 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 22:16:31,013 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 22:16:31,014 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 22:16:31,014 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 22:16:31,015 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 22:16:31,016 INFO L280 TraceCheckUtils]: 65: Hoare triple {2315#(= 0 main_~p2~0)} assume 0 != ~p2~0; {2312#false} is VALID [2020-07-08 22:16:31,016 INFO L280 TraceCheckUtils]: 66: Hoare triple {2312#false} assume 1 != ~lk2~0; {2312#false} is VALID [2020-07-08 22:16:31,016 INFO L280 TraceCheckUtils]: 67: Hoare triple {2312#false} assume !false; {2312#false} is VALID [2020-07-08 22:16:31,021 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 22:16:31,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710565661] [2020-07-08 22:16:31,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:16:31,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:16:31,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688976699] [2020-07-08 22:16:31,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-08 22:16:31,023 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:16:31,023 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:16:31,083 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 22:16:31,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:16:31,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:16:31,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:16:31,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:16:31,084 INFO L87 Difference]: Start difference. First operand 158 states and 207 transitions. Second operand 3 states. [2020-07-08 22:16:31,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:31,618 INFO L93 Difference]: Finished difference Result 386 states and 531 transitions. [2020-07-08 22:16:31,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:16:31,619 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-08 22:16:31,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:16:31,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:31,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2020-07-08 22:16:31,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:31,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2020-07-08 22:16:31,628 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 295 transitions. [2020-07-08 22:16:31,914 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 22:16:31,922 INFO L225 Difference]: With dead ends: 386 [2020-07-08 22:16:31,922 INFO L226 Difference]: Without dead ends: 269 [2020-07-08 22:16:31,924 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 22:16:31,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-07-08 22:16:32,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2020-07-08 22:16:32,202 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:16:32,202 INFO L82 GeneralOperation]: Start isEquivalent. First operand 269 states. Second operand 267 states. [2020-07-08 22:16:32,202 INFO L74 IsIncluded]: Start isIncluded. First operand 269 states. Second operand 267 states. [2020-07-08 22:16:32,202 INFO L87 Difference]: Start difference. First operand 269 states. Second operand 267 states. [2020-07-08 22:16:32,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:32,215 INFO L93 Difference]: Finished difference Result 269 states and 361 transitions. [2020-07-08 22:16:32,215 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 361 transitions. [2020-07-08 22:16:32,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:32,216 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:32,216 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states. Second operand 269 states. [2020-07-08 22:16:32,216 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 269 states. [2020-07-08 22:16:32,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:32,228 INFO L93 Difference]: Finished difference Result 269 states and 361 transitions. [2020-07-08 22:16:32,228 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 361 transitions. [2020-07-08 22:16:32,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:32,229 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:32,229 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:16:32,229 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:16:32,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-07-08 22:16:32,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 360 transitions. [2020-07-08 22:16:32,240 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 360 transitions. Word has length 68 [2020-07-08 22:16:32,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:16:32,241 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 360 transitions. [2020-07-08 22:16:32,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:16:32,241 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 267 states and 360 transitions. [2020-07-08 22:16:32,625 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 22:16:32,626 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 360 transitions. [2020-07-08 22:16:32,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-08 22:16:32,627 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:16:32,627 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 22:16:32,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 22:16:32,628 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:16:32,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:16:32,628 INFO L82 PathProgramCache]: Analyzing trace with hash 113752694, now seen corresponding path program 1 times [2020-07-08 22:16:32,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:16:32,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [559531959] [2020-07-08 22:16:32,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:16:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:32,681 INFO L280 TraceCheckUtils]: 0: Hoare triple {4162#true} assume true; {4162#true} is VALID [2020-07-08 22:16:32,682 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {4162#true} {4162#true} #247#return; {4162#true} is VALID [2020-07-08 22:16:32,682 INFO L263 TraceCheckUtils]: 0: Hoare triple {4162#true} call ULTIMATE.init(); {4162#true} is VALID [2020-07-08 22:16:32,682 INFO L280 TraceCheckUtils]: 1: Hoare triple {4162#true} assume true; {4162#true} is VALID [2020-07-08 22:16:32,683 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4162#true} {4162#true} #247#return; {4162#true} is VALID [2020-07-08 22:16:32,683 INFO L263 TraceCheckUtils]: 3: Hoare triple {4162#true} call #t~ret10 := main(); {4162#true} is VALID [2020-07-08 22:16:32,683 INFO L280 TraceCheckUtils]: 4: Hoare triple {4162#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {4162#true} is VALID [2020-07-08 22:16:32,683 INFO L280 TraceCheckUtils]: 5: Hoare triple {4162#true} ~p1~0 := #t~nondet0; {4162#true} is VALID [2020-07-08 22:16:32,683 INFO L280 TraceCheckUtils]: 6: Hoare triple {4162#true} havoc #t~nondet0; {4162#true} is VALID [2020-07-08 22:16:32,684 INFO L280 TraceCheckUtils]: 7: Hoare triple {4162#true} havoc ~lk1~0; {4162#true} is VALID [2020-07-08 22:16:32,684 INFO L280 TraceCheckUtils]: 8: Hoare triple {4162#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {4162#true} is VALID [2020-07-08 22:16:32,684 INFO L280 TraceCheckUtils]: 9: Hoare triple {4162#true} ~p2~0 := #t~nondet1; {4162#true} is VALID [2020-07-08 22:16:32,684 INFO L280 TraceCheckUtils]: 10: Hoare triple {4162#true} havoc #t~nondet1; {4162#true} is VALID [2020-07-08 22:16:32,685 INFO L280 TraceCheckUtils]: 11: Hoare triple {4162#true} havoc ~lk2~0; {4162#true} is VALID [2020-07-08 22:16:32,685 INFO L280 TraceCheckUtils]: 12: Hoare triple {4162#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4162#true} is VALID [2020-07-08 22:16:32,685 INFO L280 TraceCheckUtils]: 13: Hoare triple {4162#true} ~p3~0 := #t~nondet2; {4162#true} is VALID [2020-07-08 22:16:32,685 INFO L280 TraceCheckUtils]: 14: Hoare triple {4162#true} havoc #t~nondet2; {4162#true} is VALID [2020-07-08 22:16:32,685 INFO L280 TraceCheckUtils]: 15: Hoare triple {4162#true} havoc ~lk3~0; {4162#true} is VALID [2020-07-08 22:16:32,686 INFO L280 TraceCheckUtils]: 16: Hoare triple {4162#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {4162#true} is VALID [2020-07-08 22:16:32,686 INFO L280 TraceCheckUtils]: 17: Hoare triple {4162#true} ~p4~0 := #t~nondet3; {4162#true} is VALID [2020-07-08 22:16:32,686 INFO L280 TraceCheckUtils]: 18: Hoare triple {4162#true} havoc #t~nondet3; {4162#true} is VALID [2020-07-08 22:16:32,686 INFO L280 TraceCheckUtils]: 19: Hoare triple {4162#true} havoc ~lk4~0; {4162#true} is VALID [2020-07-08 22:16:32,687 INFO L280 TraceCheckUtils]: 20: Hoare triple {4162#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {4162#true} is VALID [2020-07-08 22:16:32,687 INFO L280 TraceCheckUtils]: 21: Hoare triple {4162#true} ~p5~0 := #t~nondet4; {4162#true} is VALID [2020-07-08 22:16:32,687 INFO L280 TraceCheckUtils]: 22: Hoare triple {4162#true} havoc #t~nondet4; {4162#true} is VALID [2020-07-08 22:16:32,687 INFO L280 TraceCheckUtils]: 23: Hoare triple {4162#true} havoc ~lk5~0; {4162#true} is VALID [2020-07-08 22:16:32,687 INFO L280 TraceCheckUtils]: 24: Hoare triple {4162#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {4162#true} is VALID [2020-07-08 22:16:32,688 INFO L280 TraceCheckUtils]: 25: Hoare triple {4162#true} ~p6~0 := #t~nondet5; {4162#true} is VALID [2020-07-08 22:16:32,688 INFO L280 TraceCheckUtils]: 26: Hoare triple {4162#true} havoc #t~nondet5; {4162#true} is VALID [2020-07-08 22:16:32,688 INFO L280 TraceCheckUtils]: 27: Hoare triple {4162#true} havoc ~lk6~0; {4162#true} is VALID [2020-07-08 22:16:32,688 INFO L280 TraceCheckUtils]: 28: Hoare triple {4162#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {4162#true} is VALID [2020-07-08 22:16:32,689 INFO L280 TraceCheckUtils]: 29: Hoare triple {4162#true} ~p7~0 := #t~nondet6; {4162#true} is VALID [2020-07-08 22:16:32,689 INFO L280 TraceCheckUtils]: 30: Hoare triple {4162#true} havoc #t~nondet6; {4162#true} is VALID [2020-07-08 22:16:32,689 INFO L280 TraceCheckUtils]: 31: Hoare triple {4162#true} havoc ~lk7~0; {4162#true} is VALID [2020-07-08 22:16:32,689 INFO L280 TraceCheckUtils]: 32: Hoare triple {4162#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {4162#true} is VALID [2020-07-08 22:16:32,689 INFO L280 TraceCheckUtils]: 33: Hoare triple {4162#true} ~p8~0 := #t~nondet7; {4162#true} is VALID [2020-07-08 22:16:32,690 INFO L280 TraceCheckUtils]: 34: Hoare triple {4162#true} havoc #t~nondet7; {4162#true} is VALID [2020-07-08 22:16:32,690 INFO L280 TraceCheckUtils]: 35: Hoare triple {4162#true} havoc ~lk8~0; {4162#true} is VALID [2020-07-08 22:16:32,690 INFO L280 TraceCheckUtils]: 36: Hoare triple {4162#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {4162#true} is VALID [2020-07-08 22:16:32,690 INFO L280 TraceCheckUtils]: 37: Hoare triple {4162#true} ~p9~0 := #t~nondet8; {4162#true} is VALID [2020-07-08 22:16:32,690 INFO L280 TraceCheckUtils]: 38: Hoare triple {4162#true} havoc #t~nondet8; {4162#true} is VALID [2020-07-08 22:16:32,691 INFO L280 TraceCheckUtils]: 39: Hoare triple {4162#true} havoc ~lk9~0; {4162#true} is VALID [2020-07-08 22:16:32,691 INFO L280 TraceCheckUtils]: 40: Hoare triple {4162#true} havoc ~cond~0; {4162#true} is VALID [2020-07-08 22:16:32,691 INFO L280 TraceCheckUtils]: 41: Hoare triple {4162#true} assume !false; {4162#true} is VALID [2020-07-08 22:16:32,691 INFO L280 TraceCheckUtils]: 42: Hoare triple {4162#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {4162#true} is VALID [2020-07-08 22:16:32,692 INFO L280 TraceCheckUtils]: 43: Hoare triple {4162#true} ~cond~0 := #t~nondet9; {4162#true} is VALID [2020-07-08 22:16:32,692 INFO L280 TraceCheckUtils]: 44: Hoare triple {4162#true} havoc #t~nondet9; {4162#true} is VALID [2020-07-08 22:16:32,692 INFO L280 TraceCheckUtils]: 45: Hoare triple {4162#true} assume !(0 == ~cond~0); {4162#true} is VALID [2020-07-08 22:16:32,692 INFO L280 TraceCheckUtils]: 46: Hoare triple {4162#true} ~lk1~0 := 0; {4162#true} is VALID [2020-07-08 22:16:32,692 INFO L280 TraceCheckUtils]: 47: Hoare triple {4162#true} ~lk2~0 := 0; {4162#true} is VALID [2020-07-08 22:16:32,693 INFO L280 TraceCheckUtils]: 48: Hoare triple {4162#true} ~lk3~0 := 0; {4162#true} is VALID [2020-07-08 22:16:32,693 INFO L280 TraceCheckUtils]: 49: Hoare triple {4162#true} ~lk4~0 := 0; {4162#true} is VALID [2020-07-08 22:16:32,693 INFO L280 TraceCheckUtils]: 50: Hoare triple {4162#true} ~lk5~0 := 0; {4162#true} is VALID [2020-07-08 22:16:32,693 INFO L280 TraceCheckUtils]: 51: Hoare triple {4162#true} ~lk6~0 := 0; {4162#true} is VALID [2020-07-08 22:16:32,694 INFO L280 TraceCheckUtils]: 52: Hoare triple {4162#true} ~lk7~0 := 0; {4162#true} is VALID [2020-07-08 22:16:32,694 INFO L280 TraceCheckUtils]: 53: Hoare triple {4162#true} ~lk8~0 := 0; {4162#true} is VALID [2020-07-08 22:16:32,694 INFO L280 TraceCheckUtils]: 54: Hoare triple {4162#true} ~lk9~0 := 0; {4162#true} is VALID [2020-07-08 22:16:32,694 INFO L280 TraceCheckUtils]: 55: Hoare triple {4162#true} assume !(0 != ~p1~0); {4162#true} is VALID [2020-07-08 22:16:32,695 INFO L280 TraceCheckUtils]: 56: Hoare triple {4162#true} assume 0 != ~p2~0; {4162#true} is VALID [2020-07-08 22:16:32,695 INFO L280 TraceCheckUtils]: 57: Hoare triple {4162#true} ~lk2~0 := 1; {4166#(= 1 main_~lk2~0)} is VALID [2020-07-08 22:16:32,696 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 22:16:32,696 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 22:16:32,697 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 22:16:32,698 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 22:16:32,698 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 22:16:32,699 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 22:16:32,699 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 22:16:32,700 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 22:16:32,700 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 22:16:32,701 INFO L280 TraceCheckUtils]: 67: Hoare triple {4166#(= 1 main_~lk2~0)} assume 1 != ~lk2~0; {4163#false} is VALID [2020-07-08 22:16:32,701 INFO L280 TraceCheckUtils]: 68: Hoare triple {4163#false} assume !false; {4163#false} is VALID [2020-07-08 22:16:32,717 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 22:16:32,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [559531959] [2020-07-08 22:16:32,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:16:32,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:16:32,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80585649] [2020-07-08 22:16:32,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-08 22:16:32,720 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:16:32,720 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:16:32,773 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 22:16:32,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:16:32,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:16:32,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:16:32,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:16:32,774 INFO L87 Difference]: Start difference. First operand 267 states and 360 transitions. Second operand 3 states. [2020-07-08 22:16:33,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:33,336 INFO L93 Difference]: Finished difference Result 327 states and 446 transitions. [2020-07-08 22:16:33,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:16:33,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-08 22:16:33,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:16:33,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:33,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2020-07-08 22:16:33,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:33,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2020-07-08 22:16:33,343 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 197 transitions. [2020-07-08 22:16:33,521 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 22:16:33,531 INFO L225 Difference]: With dead ends: 327 [2020-07-08 22:16:33,531 INFO L226 Difference]: Without dead ends: 325 [2020-07-08 22:16:33,532 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 22:16:33,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-07-08 22:16:33,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 267. [2020-07-08 22:16:33,837 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:16:33,837 INFO L82 GeneralOperation]: Start isEquivalent. First operand 325 states. Second operand 267 states. [2020-07-08 22:16:33,837 INFO L74 IsIncluded]: Start isIncluded. First operand 325 states. Second operand 267 states. [2020-07-08 22:16:33,837 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 267 states. [2020-07-08 22:16:33,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:33,851 INFO L93 Difference]: Finished difference Result 325 states and 443 transitions. [2020-07-08 22:16:33,852 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 443 transitions. [2020-07-08 22:16:33,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:33,853 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:33,853 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states. Second operand 325 states. [2020-07-08 22:16:33,853 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 325 states. [2020-07-08 22:16:33,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:33,867 INFO L93 Difference]: Finished difference Result 325 states and 443 transitions. [2020-07-08 22:16:33,868 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 443 transitions. [2020-07-08 22:16:33,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:33,869 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:33,869 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:16:33,869 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:16:33,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-07-08 22:16:33,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 358 transitions. [2020-07-08 22:16:33,879 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 358 transitions. Word has length 69 [2020-07-08 22:16:33,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:16:33,880 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 358 transitions. [2020-07-08 22:16:33,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:16:33,880 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 267 states and 358 transitions. [2020-07-08 22:16:34,263 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 22:16:34,263 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 358 transitions. [2020-07-08 22:16:34,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-08 22:16:34,265 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:16:34,265 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 22:16:34,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-08 22:16:34,266 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:16:34,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:16:34,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1002841264, now seen corresponding path program 1 times [2020-07-08 22:16:34,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:16:34,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047536666] [2020-07-08 22:16:34,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:16:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:34,339 INFO L280 TraceCheckUtils]: 0: Hoare triple {6007#true} assume true; {6007#true} is VALID [2020-07-08 22:16:34,339 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {6007#true} {6007#true} #247#return; {6007#true} is VALID [2020-07-08 22:16:34,340 INFO L263 TraceCheckUtils]: 0: Hoare triple {6007#true} call ULTIMATE.init(); {6007#true} is VALID [2020-07-08 22:16:34,340 INFO L280 TraceCheckUtils]: 1: Hoare triple {6007#true} assume true; {6007#true} is VALID [2020-07-08 22:16:34,340 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6007#true} {6007#true} #247#return; {6007#true} is VALID [2020-07-08 22:16:34,340 INFO L263 TraceCheckUtils]: 3: Hoare triple {6007#true} call #t~ret10 := main(); {6007#true} is VALID [2020-07-08 22:16:34,341 INFO L280 TraceCheckUtils]: 4: Hoare triple {6007#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {6007#true} is VALID [2020-07-08 22:16:34,341 INFO L280 TraceCheckUtils]: 5: Hoare triple {6007#true} ~p1~0 := #t~nondet0; {6007#true} is VALID [2020-07-08 22:16:34,341 INFO L280 TraceCheckUtils]: 6: Hoare triple {6007#true} havoc #t~nondet0; {6007#true} is VALID [2020-07-08 22:16:34,341 INFO L280 TraceCheckUtils]: 7: Hoare triple {6007#true} havoc ~lk1~0; {6007#true} is VALID [2020-07-08 22:16:34,341 INFO L280 TraceCheckUtils]: 8: Hoare triple {6007#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {6007#true} is VALID [2020-07-08 22:16:34,342 INFO L280 TraceCheckUtils]: 9: Hoare triple {6007#true} ~p2~0 := #t~nondet1; {6007#true} is VALID [2020-07-08 22:16:34,342 INFO L280 TraceCheckUtils]: 10: Hoare triple {6007#true} havoc #t~nondet1; {6007#true} is VALID [2020-07-08 22:16:34,342 INFO L280 TraceCheckUtils]: 11: Hoare triple {6007#true} havoc ~lk2~0; {6007#true} is VALID [2020-07-08 22:16:34,342 INFO L280 TraceCheckUtils]: 12: Hoare triple {6007#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6007#true} is VALID [2020-07-08 22:16:34,342 INFO L280 TraceCheckUtils]: 13: Hoare triple {6007#true} ~p3~0 := #t~nondet2; {6007#true} is VALID [2020-07-08 22:16:34,343 INFO L280 TraceCheckUtils]: 14: Hoare triple {6007#true} havoc #t~nondet2; {6007#true} is VALID [2020-07-08 22:16:34,343 INFO L280 TraceCheckUtils]: 15: Hoare triple {6007#true} havoc ~lk3~0; {6007#true} is VALID [2020-07-08 22:16:34,343 INFO L280 TraceCheckUtils]: 16: Hoare triple {6007#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {6007#true} is VALID [2020-07-08 22:16:34,343 INFO L280 TraceCheckUtils]: 17: Hoare triple {6007#true} ~p4~0 := #t~nondet3; {6007#true} is VALID [2020-07-08 22:16:34,344 INFO L280 TraceCheckUtils]: 18: Hoare triple {6007#true} havoc #t~nondet3; {6007#true} is VALID [2020-07-08 22:16:34,344 INFO L280 TraceCheckUtils]: 19: Hoare triple {6007#true} havoc ~lk4~0; {6007#true} is VALID [2020-07-08 22:16:34,344 INFO L280 TraceCheckUtils]: 20: Hoare triple {6007#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {6007#true} is VALID [2020-07-08 22:16:34,344 INFO L280 TraceCheckUtils]: 21: Hoare triple {6007#true} ~p5~0 := #t~nondet4; {6007#true} is VALID [2020-07-08 22:16:34,345 INFO L280 TraceCheckUtils]: 22: Hoare triple {6007#true} havoc #t~nondet4; {6007#true} is VALID [2020-07-08 22:16:34,345 INFO L280 TraceCheckUtils]: 23: Hoare triple {6007#true} havoc ~lk5~0; {6007#true} is VALID [2020-07-08 22:16:34,345 INFO L280 TraceCheckUtils]: 24: Hoare triple {6007#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {6007#true} is VALID [2020-07-08 22:16:34,345 INFO L280 TraceCheckUtils]: 25: Hoare triple {6007#true} ~p6~0 := #t~nondet5; {6007#true} is VALID [2020-07-08 22:16:34,345 INFO L280 TraceCheckUtils]: 26: Hoare triple {6007#true} havoc #t~nondet5; {6007#true} is VALID [2020-07-08 22:16:34,346 INFO L280 TraceCheckUtils]: 27: Hoare triple {6007#true} havoc ~lk6~0; {6007#true} is VALID [2020-07-08 22:16:34,346 INFO L280 TraceCheckUtils]: 28: Hoare triple {6007#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {6007#true} is VALID [2020-07-08 22:16:34,346 INFO L280 TraceCheckUtils]: 29: Hoare triple {6007#true} ~p7~0 := #t~nondet6; {6007#true} is VALID [2020-07-08 22:16:34,346 INFO L280 TraceCheckUtils]: 30: Hoare triple {6007#true} havoc #t~nondet6; {6007#true} is VALID [2020-07-08 22:16:34,347 INFO L280 TraceCheckUtils]: 31: Hoare triple {6007#true} havoc ~lk7~0; {6007#true} is VALID [2020-07-08 22:16:34,347 INFO L280 TraceCheckUtils]: 32: Hoare triple {6007#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {6007#true} is VALID [2020-07-08 22:16:34,347 INFO L280 TraceCheckUtils]: 33: Hoare triple {6007#true} ~p8~0 := #t~nondet7; {6007#true} is VALID [2020-07-08 22:16:34,347 INFO L280 TraceCheckUtils]: 34: Hoare triple {6007#true} havoc #t~nondet7; {6007#true} is VALID [2020-07-08 22:16:34,347 INFO L280 TraceCheckUtils]: 35: Hoare triple {6007#true} havoc ~lk8~0; {6007#true} is VALID [2020-07-08 22:16:34,348 INFO L280 TraceCheckUtils]: 36: Hoare triple {6007#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {6007#true} is VALID [2020-07-08 22:16:34,348 INFO L280 TraceCheckUtils]: 37: Hoare triple {6007#true} ~p9~0 := #t~nondet8; {6007#true} is VALID [2020-07-08 22:16:34,348 INFO L280 TraceCheckUtils]: 38: Hoare triple {6007#true} havoc #t~nondet8; {6007#true} is VALID [2020-07-08 22:16:34,348 INFO L280 TraceCheckUtils]: 39: Hoare triple {6007#true} havoc ~lk9~0; {6007#true} is VALID [2020-07-08 22:16:34,348 INFO L280 TraceCheckUtils]: 40: Hoare triple {6007#true} havoc ~cond~0; {6007#true} is VALID [2020-07-08 22:16:34,349 INFO L280 TraceCheckUtils]: 41: Hoare triple {6007#true} assume !false; {6007#true} is VALID [2020-07-08 22:16:34,349 INFO L280 TraceCheckUtils]: 42: Hoare triple {6007#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {6007#true} is VALID [2020-07-08 22:16:34,349 INFO L280 TraceCheckUtils]: 43: Hoare triple {6007#true} ~cond~0 := #t~nondet9; {6007#true} is VALID [2020-07-08 22:16:34,349 INFO L280 TraceCheckUtils]: 44: Hoare triple {6007#true} havoc #t~nondet9; {6007#true} is VALID [2020-07-08 22:16:34,349 INFO L280 TraceCheckUtils]: 45: Hoare triple {6007#true} assume !(0 == ~cond~0); {6007#true} is VALID [2020-07-08 22:16:34,350 INFO L280 TraceCheckUtils]: 46: Hoare triple {6007#true} ~lk1~0 := 0; {6007#true} is VALID [2020-07-08 22:16:34,350 INFO L280 TraceCheckUtils]: 47: Hoare triple {6007#true} ~lk2~0 := 0; {6007#true} is VALID [2020-07-08 22:16:34,350 INFO L280 TraceCheckUtils]: 48: Hoare triple {6007#true} ~lk3~0 := 0; {6007#true} is VALID [2020-07-08 22:16:34,350 INFO L280 TraceCheckUtils]: 49: Hoare triple {6007#true} ~lk4~0 := 0; {6007#true} is VALID [2020-07-08 22:16:34,351 INFO L280 TraceCheckUtils]: 50: Hoare triple {6007#true} ~lk5~0 := 0; {6007#true} is VALID [2020-07-08 22:16:34,351 INFO L280 TraceCheckUtils]: 51: Hoare triple {6007#true} ~lk6~0 := 0; {6007#true} is VALID [2020-07-08 22:16:34,351 INFO L280 TraceCheckUtils]: 52: Hoare triple {6007#true} ~lk7~0 := 0; {6007#true} is VALID [2020-07-08 22:16:34,351 INFO L280 TraceCheckUtils]: 53: Hoare triple {6007#true} ~lk8~0 := 0; {6007#true} is VALID [2020-07-08 22:16:34,351 INFO L280 TraceCheckUtils]: 54: Hoare triple {6007#true} ~lk9~0 := 0; {6007#true} is VALID [2020-07-08 22:16:34,352 INFO L280 TraceCheckUtils]: 55: Hoare triple {6007#true} assume !(0 != ~p1~0); {6007#true} is VALID [2020-07-08 22:16:34,352 INFO L280 TraceCheckUtils]: 56: Hoare triple {6007#true} assume !(0 != ~p2~0); {6007#true} is VALID [2020-07-08 22:16:34,353 INFO L280 TraceCheckUtils]: 57: Hoare triple {6007#true} assume !(0 != ~p3~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-08 22:16:34,354 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 22:16:34,355 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 22:16:34,356 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 22:16:34,357 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 22:16:34,358 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 22:16:34,359 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 22:16:34,360 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 22:16:34,360 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 22:16:34,361 INFO L280 TraceCheckUtils]: 66: Hoare triple {6011#(= 0 main_~p3~0)} assume 0 != ~p3~0; {6008#false} is VALID [2020-07-08 22:16:34,362 INFO L280 TraceCheckUtils]: 67: Hoare triple {6008#false} assume 1 != ~lk3~0; {6008#false} is VALID [2020-07-08 22:16:34,362 INFO L280 TraceCheckUtils]: 68: Hoare triple {6008#false} assume !false; {6008#false} is VALID [2020-07-08 22:16:34,365 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 22:16:34,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047536666] [2020-07-08 22:16:34,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:16:34,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:16:34,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278878914] [2020-07-08 22:16:34,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-08 22:16:34,367 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:16:34,367 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:16:34,431 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 22:16:34,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:16:34,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:16:34,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:16:34,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:16:34,432 INFO L87 Difference]: Start difference. First operand 267 states and 358 transitions. Second operand 3 states. [2020-07-08 22:16:35,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:35,373 INFO L93 Difference]: Finished difference Result 707 states and 976 transitions. [2020-07-08 22:16:35,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:16:35,373 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-08 22:16:35,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:16:35,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:35,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2020-07-08 22:16:35,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:35,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2020-07-08 22:16:35,383 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 292 transitions. [2020-07-08 22:16:35,720 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 22:16:35,747 INFO L225 Difference]: With dead ends: 707 [2020-07-08 22:16:35,747 INFO L226 Difference]: Without dead ends: 481 [2020-07-08 22:16:35,757 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 22:16:35,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-07-08 22:16:36,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2020-07-08 22:16:36,424 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:16:36,424 INFO L82 GeneralOperation]: Start isEquivalent. First operand 481 states. Second operand 479 states. [2020-07-08 22:16:36,424 INFO L74 IsIncluded]: Start isIncluded. First operand 481 states. Second operand 479 states. [2020-07-08 22:16:36,424 INFO L87 Difference]: Start difference. First operand 481 states. Second operand 479 states. [2020-07-08 22:16:36,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:36,442 INFO L93 Difference]: Finished difference Result 481 states and 651 transitions. [2020-07-08 22:16:36,442 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 651 transitions. [2020-07-08 22:16:36,443 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:36,444 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:36,444 INFO L74 IsIncluded]: Start isIncluded. First operand 479 states. Second operand 481 states. [2020-07-08 22:16:36,444 INFO L87 Difference]: Start difference. First operand 479 states. Second operand 481 states. [2020-07-08 22:16:36,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:36,462 INFO L93 Difference]: Finished difference Result 481 states and 651 transitions. [2020-07-08 22:16:36,462 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 651 transitions. [2020-07-08 22:16:36,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:36,463 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:36,463 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:16:36,463 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:16:36,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-07-08 22:16:36,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 650 transitions. [2020-07-08 22:16:36,480 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 650 transitions. Word has length 69 [2020-07-08 22:16:36,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:16:36,481 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 650 transitions. [2020-07-08 22:16:36,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:16:36,481 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 479 states and 650 transitions. [2020-07-08 22:16:37,174 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 22:16:37,175 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 650 transitions. [2020-07-08 22:16:37,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-08 22:16:37,176 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:16:37,176 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 22:16:37,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-08 22:16:37,177 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:16:37,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:16:37,178 INFO L82 PathProgramCache]: Analyzing trace with hash -8681195, now seen corresponding path program 1 times [2020-07-08 22:16:37,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:16:37,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407861909] [2020-07-08 22:16:37,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:16:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:37,236 INFO L280 TraceCheckUtils]: 0: Hoare triple {9348#true} assume true; {9348#true} is VALID [2020-07-08 22:16:37,237 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {9348#true} {9348#true} #247#return; {9348#true} is VALID [2020-07-08 22:16:37,237 INFO L263 TraceCheckUtils]: 0: Hoare triple {9348#true} call ULTIMATE.init(); {9348#true} is VALID [2020-07-08 22:16:37,238 INFO L280 TraceCheckUtils]: 1: Hoare triple {9348#true} assume true; {9348#true} is VALID [2020-07-08 22:16:37,238 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {9348#true} {9348#true} #247#return; {9348#true} is VALID [2020-07-08 22:16:37,238 INFO L263 TraceCheckUtils]: 3: Hoare triple {9348#true} call #t~ret10 := main(); {9348#true} is VALID [2020-07-08 22:16:37,238 INFO L280 TraceCheckUtils]: 4: Hoare triple {9348#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {9348#true} is VALID [2020-07-08 22:16:37,239 INFO L280 TraceCheckUtils]: 5: Hoare triple {9348#true} ~p1~0 := #t~nondet0; {9348#true} is VALID [2020-07-08 22:16:37,239 INFO L280 TraceCheckUtils]: 6: Hoare triple {9348#true} havoc #t~nondet0; {9348#true} is VALID [2020-07-08 22:16:37,239 INFO L280 TraceCheckUtils]: 7: Hoare triple {9348#true} havoc ~lk1~0; {9348#true} is VALID [2020-07-08 22:16:37,239 INFO L280 TraceCheckUtils]: 8: Hoare triple {9348#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {9348#true} is VALID [2020-07-08 22:16:37,240 INFO L280 TraceCheckUtils]: 9: Hoare triple {9348#true} ~p2~0 := #t~nondet1; {9348#true} is VALID [2020-07-08 22:16:37,240 INFO L280 TraceCheckUtils]: 10: Hoare triple {9348#true} havoc #t~nondet1; {9348#true} is VALID [2020-07-08 22:16:37,240 INFO L280 TraceCheckUtils]: 11: Hoare triple {9348#true} havoc ~lk2~0; {9348#true} is VALID [2020-07-08 22:16:37,240 INFO L280 TraceCheckUtils]: 12: Hoare triple {9348#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9348#true} is VALID [2020-07-08 22:16:37,241 INFO L280 TraceCheckUtils]: 13: Hoare triple {9348#true} ~p3~0 := #t~nondet2; {9348#true} is VALID [2020-07-08 22:16:37,241 INFO L280 TraceCheckUtils]: 14: Hoare triple {9348#true} havoc #t~nondet2; {9348#true} is VALID [2020-07-08 22:16:37,241 INFO L280 TraceCheckUtils]: 15: Hoare triple {9348#true} havoc ~lk3~0; {9348#true} is VALID [2020-07-08 22:16:37,241 INFO L280 TraceCheckUtils]: 16: Hoare triple {9348#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {9348#true} is VALID [2020-07-08 22:16:37,241 INFO L280 TraceCheckUtils]: 17: Hoare triple {9348#true} ~p4~0 := #t~nondet3; {9348#true} is VALID [2020-07-08 22:16:37,242 INFO L280 TraceCheckUtils]: 18: Hoare triple {9348#true} havoc #t~nondet3; {9348#true} is VALID [2020-07-08 22:16:37,242 INFO L280 TraceCheckUtils]: 19: Hoare triple {9348#true} havoc ~lk4~0; {9348#true} is VALID [2020-07-08 22:16:37,242 INFO L280 TraceCheckUtils]: 20: Hoare triple {9348#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {9348#true} is VALID [2020-07-08 22:16:37,242 INFO L280 TraceCheckUtils]: 21: Hoare triple {9348#true} ~p5~0 := #t~nondet4; {9348#true} is VALID [2020-07-08 22:16:37,242 INFO L280 TraceCheckUtils]: 22: Hoare triple {9348#true} havoc #t~nondet4; {9348#true} is VALID [2020-07-08 22:16:37,243 INFO L280 TraceCheckUtils]: 23: Hoare triple {9348#true} havoc ~lk5~0; {9348#true} is VALID [2020-07-08 22:16:37,243 INFO L280 TraceCheckUtils]: 24: Hoare triple {9348#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {9348#true} is VALID [2020-07-08 22:16:37,243 INFO L280 TraceCheckUtils]: 25: Hoare triple {9348#true} ~p6~0 := #t~nondet5; {9348#true} is VALID [2020-07-08 22:16:37,243 INFO L280 TraceCheckUtils]: 26: Hoare triple {9348#true} havoc #t~nondet5; {9348#true} is VALID [2020-07-08 22:16:37,244 INFO L280 TraceCheckUtils]: 27: Hoare triple {9348#true} havoc ~lk6~0; {9348#true} is VALID [2020-07-08 22:16:37,244 INFO L280 TraceCheckUtils]: 28: Hoare triple {9348#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {9348#true} is VALID [2020-07-08 22:16:37,244 INFO L280 TraceCheckUtils]: 29: Hoare triple {9348#true} ~p7~0 := #t~nondet6; {9348#true} is VALID [2020-07-08 22:16:37,244 INFO L280 TraceCheckUtils]: 30: Hoare triple {9348#true} havoc #t~nondet6; {9348#true} is VALID [2020-07-08 22:16:37,245 INFO L280 TraceCheckUtils]: 31: Hoare triple {9348#true} havoc ~lk7~0; {9348#true} is VALID [2020-07-08 22:16:37,245 INFO L280 TraceCheckUtils]: 32: Hoare triple {9348#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {9348#true} is VALID [2020-07-08 22:16:37,245 INFO L280 TraceCheckUtils]: 33: Hoare triple {9348#true} ~p8~0 := #t~nondet7; {9348#true} is VALID [2020-07-08 22:16:37,245 INFO L280 TraceCheckUtils]: 34: Hoare triple {9348#true} havoc #t~nondet7; {9348#true} is VALID [2020-07-08 22:16:37,246 INFO L280 TraceCheckUtils]: 35: Hoare triple {9348#true} havoc ~lk8~0; {9348#true} is VALID [2020-07-08 22:16:37,246 INFO L280 TraceCheckUtils]: 36: Hoare triple {9348#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {9348#true} is VALID [2020-07-08 22:16:37,246 INFO L280 TraceCheckUtils]: 37: Hoare triple {9348#true} ~p9~0 := #t~nondet8; {9348#true} is VALID [2020-07-08 22:16:37,246 INFO L280 TraceCheckUtils]: 38: Hoare triple {9348#true} havoc #t~nondet8; {9348#true} is VALID [2020-07-08 22:16:37,246 INFO L280 TraceCheckUtils]: 39: Hoare triple {9348#true} havoc ~lk9~0; {9348#true} is VALID [2020-07-08 22:16:37,247 INFO L280 TraceCheckUtils]: 40: Hoare triple {9348#true} havoc ~cond~0; {9348#true} is VALID [2020-07-08 22:16:37,247 INFO L280 TraceCheckUtils]: 41: Hoare triple {9348#true} assume !false; {9348#true} is VALID [2020-07-08 22:16:37,247 INFO L280 TraceCheckUtils]: 42: Hoare triple {9348#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {9348#true} is VALID [2020-07-08 22:16:37,247 INFO L280 TraceCheckUtils]: 43: Hoare triple {9348#true} ~cond~0 := #t~nondet9; {9348#true} is VALID [2020-07-08 22:16:37,248 INFO L280 TraceCheckUtils]: 44: Hoare triple {9348#true} havoc #t~nondet9; {9348#true} is VALID [2020-07-08 22:16:37,248 INFO L280 TraceCheckUtils]: 45: Hoare triple {9348#true} assume !(0 == ~cond~0); {9348#true} is VALID [2020-07-08 22:16:37,248 INFO L280 TraceCheckUtils]: 46: Hoare triple {9348#true} ~lk1~0 := 0; {9348#true} is VALID [2020-07-08 22:16:37,248 INFO L280 TraceCheckUtils]: 47: Hoare triple {9348#true} ~lk2~0 := 0; {9348#true} is VALID [2020-07-08 22:16:37,249 INFO L280 TraceCheckUtils]: 48: Hoare triple {9348#true} ~lk3~0 := 0; {9348#true} is VALID [2020-07-08 22:16:37,249 INFO L280 TraceCheckUtils]: 49: Hoare triple {9348#true} ~lk4~0 := 0; {9348#true} is VALID [2020-07-08 22:16:37,249 INFO L280 TraceCheckUtils]: 50: Hoare triple {9348#true} ~lk5~0 := 0; {9348#true} is VALID [2020-07-08 22:16:37,249 INFO L280 TraceCheckUtils]: 51: Hoare triple {9348#true} ~lk6~0 := 0; {9348#true} is VALID [2020-07-08 22:16:37,249 INFO L280 TraceCheckUtils]: 52: Hoare triple {9348#true} ~lk7~0 := 0; {9348#true} is VALID [2020-07-08 22:16:37,250 INFO L280 TraceCheckUtils]: 53: Hoare triple {9348#true} ~lk8~0 := 0; {9348#true} is VALID [2020-07-08 22:16:37,250 INFO L280 TraceCheckUtils]: 54: Hoare triple {9348#true} ~lk9~0 := 0; {9348#true} is VALID [2020-07-08 22:16:37,250 INFO L280 TraceCheckUtils]: 55: Hoare triple {9348#true} assume !(0 != ~p1~0); {9348#true} is VALID [2020-07-08 22:16:37,250 INFO L280 TraceCheckUtils]: 56: Hoare triple {9348#true} assume !(0 != ~p2~0); {9348#true} is VALID [2020-07-08 22:16:37,251 INFO L280 TraceCheckUtils]: 57: Hoare triple {9348#true} assume 0 != ~p3~0; {9348#true} is VALID [2020-07-08 22:16:37,252 INFO L280 TraceCheckUtils]: 58: Hoare triple {9348#true} ~lk3~0 := 1; {9352#(= 1 main_~lk3~0)} is VALID [2020-07-08 22:16:37,253 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 22:16:37,254 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 22:16:37,254 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 22:16:37,255 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 22:16:37,255 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 22:16:37,256 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 22:16:37,257 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 22:16:37,258 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 22:16:37,259 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 22:16:37,259 INFO L280 TraceCheckUtils]: 68: Hoare triple {9352#(= 1 main_~lk3~0)} assume 1 != ~lk3~0; {9349#false} is VALID [2020-07-08 22:16:37,260 INFO L280 TraceCheckUtils]: 69: Hoare triple {9349#false} assume !false; {9349#false} is VALID [2020-07-08 22:16:37,264 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 22:16:37,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407861909] [2020-07-08 22:16:37,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:16:37,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:16:37,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500005601] [2020-07-08 22:16:37,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-08 22:16:37,266 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:16:37,266 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:16:37,325 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 22:16:37,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:16:37,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:16:37,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:16:37,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:16:37,326 INFO L87 Difference]: Start difference. First operand 479 states and 650 transitions. Second operand 3 states. [2020-07-08 22:16:38,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:38,471 INFO L93 Difference]: Finished difference Result 587 states and 804 transitions. [2020-07-08 22:16:38,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:16:38,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-08 22:16:38,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:16:38,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:38,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2020-07-08 22:16:38,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:38,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2020-07-08 22:16:38,482 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 193 transitions. [2020-07-08 22:16:38,662 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 22:16:38,687 INFO L225 Difference]: With dead ends: 587 [2020-07-08 22:16:38,688 INFO L226 Difference]: Without dead ends: 585 [2020-07-08 22:16:38,689 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 22:16:38,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-07-08 22:16:39,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 479. [2020-07-08 22:16:39,501 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:16:39,501 INFO L82 GeneralOperation]: Start isEquivalent. First operand 585 states. Second operand 479 states. [2020-07-08 22:16:39,501 INFO L74 IsIncluded]: Start isIncluded. First operand 585 states. Second operand 479 states. [2020-07-08 22:16:39,502 INFO L87 Difference]: Start difference. First operand 585 states. Second operand 479 states. [2020-07-08 22:16:39,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:39,524 INFO L93 Difference]: Finished difference Result 585 states and 799 transitions. [2020-07-08 22:16:39,524 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 799 transitions. [2020-07-08 22:16:39,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:39,526 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:39,526 INFO L74 IsIncluded]: Start isIncluded. First operand 479 states. Second operand 585 states. [2020-07-08 22:16:39,527 INFO L87 Difference]: Start difference. First operand 479 states. Second operand 585 states. [2020-07-08 22:16:39,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:39,550 INFO L93 Difference]: Finished difference Result 585 states and 799 transitions. [2020-07-08 22:16:39,550 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 799 transitions. [2020-07-08 22:16:39,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:39,552 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:39,552 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:16:39,552 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:16:39,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-07-08 22:16:39,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 646 transitions. [2020-07-08 22:16:39,567 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 646 transitions. Word has length 70 [2020-07-08 22:16:39,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:16:39,568 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 646 transitions. [2020-07-08 22:16:39,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:16:39,568 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 479 states and 646 transitions. [2020-07-08 22:16:40,244 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 22:16:40,244 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 646 transitions. [2020-07-08 22:16:40,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-08 22:16:40,246 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:16:40,246 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 22:16:40,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-08 22:16:40,247 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:16:40,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:16:40,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1023553130, now seen corresponding path program 1 times [2020-07-08 22:16:40,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:16:40,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613838941] [2020-07-08 22:16:40,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:16:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:40,307 INFO L280 TraceCheckUtils]: 0: Hoare triple {12657#true} assume true; {12657#true} is VALID [2020-07-08 22:16:40,307 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {12657#true} {12657#true} #247#return; {12657#true} is VALID [2020-07-08 22:16:40,307 INFO L263 TraceCheckUtils]: 0: Hoare triple {12657#true} call ULTIMATE.init(); {12657#true} is VALID [2020-07-08 22:16:40,307 INFO L280 TraceCheckUtils]: 1: Hoare triple {12657#true} assume true; {12657#true} is VALID [2020-07-08 22:16:40,308 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {12657#true} {12657#true} #247#return; {12657#true} is VALID [2020-07-08 22:16:40,308 INFO L263 TraceCheckUtils]: 3: Hoare triple {12657#true} call #t~ret10 := main(); {12657#true} is VALID [2020-07-08 22:16:40,308 INFO L280 TraceCheckUtils]: 4: Hoare triple {12657#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {12657#true} is VALID [2020-07-08 22:16:40,308 INFO L280 TraceCheckUtils]: 5: Hoare triple {12657#true} ~p1~0 := #t~nondet0; {12657#true} is VALID [2020-07-08 22:16:40,308 INFO L280 TraceCheckUtils]: 6: Hoare triple {12657#true} havoc #t~nondet0; {12657#true} is VALID [2020-07-08 22:16:40,309 INFO L280 TraceCheckUtils]: 7: Hoare triple {12657#true} havoc ~lk1~0; {12657#true} is VALID [2020-07-08 22:16:40,309 INFO L280 TraceCheckUtils]: 8: Hoare triple {12657#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {12657#true} is VALID [2020-07-08 22:16:40,309 INFO L280 TraceCheckUtils]: 9: Hoare triple {12657#true} ~p2~0 := #t~nondet1; {12657#true} is VALID [2020-07-08 22:16:40,309 INFO L280 TraceCheckUtils]: 10: Hoare triple {12657#true} havoc #t~nondet1; {12657#true} is VALID [2020-07-08 22:16:40,309 INFO L280 TraceCheckUtils]: 11: Hoare triple {12657#true} havoc ~lk2~0; {12657#true} is VALID [2020-07-08 22:16:40,310 INFO L280 TraceCheckUtils]: 12: Hoare triple {12657#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {12657#true} is VALID [2020-07-08 22:16:40,310 INFO L280 TraceCheckUtils]: 13: Hoare triple {12657#true} ~p3~0 := #t~nondet2; {12657#true} is VALID [2020-07-08 22:16:40,310 INFO L280 TraceCheckUtils]: 14: Hoare triple {12657#true} havoc #t~nondet2; {12657#true} is VALID [2020-07-08 22:16:40,310 INFO L280 TraceCheckUtils]: 15: Hoare triple {12657#true} havoc ~lk3~0; {12657#true} is VALID [2020-07-08 22:16:40,310 INFO L280 TraceCheckUtils]: 16: Hoare triple {12657#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {12657#true} is VALID [2020-07-08 22:16:40,311 INFO L280 TraceCheckUtils]: 17: Hoare triple {12657#true} ~p4~0 := #t~nondet3; {12657#true} is VALID [2020-07-08 22:16:40,311 INFO L280 TraceCheckUtils]: 18: Hoare triple {12657#true} havoc #t~nondet3; {12657#true} is VALID [2020-07-08 22:16:40,311 INFO L280 TraceCheckUtils]: 19: Hoare triple {12657#true} havoc ~lk4~0; {12657#true} is VALID [2020-07-08 22:16:40,311 INFO L280 TraceCheckUtils]: 20: Hoare triple {12657#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {12657#true} is VALID [2020-07-08 22:16:40,311 INFO L280 TraceCheckUtils]: 21: Hoare triple {12657#true} ~p5~0 := #t~nondet4; {12657#true} is VALID [2020-07-08 22:16:40,311 INFO L280 TraceCheckUtils]: 22: Hoare triple {12657#true} havoc #t~nondet4; {12657#true} is VALID [2020-07-08 22:16:40,312 INFO L280 TraceCheckUtils]: 23: Hoare triple {12657#true} havoc ~lk5~0; {12657#true} is VALID [2020-07-08 22:16:40,312 INFO L280 TraceCheckUtils]: 24: Hoare triple {12657#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {12657#true} is VALID [2020-07-08 22:16:40,312 INFO L280 TraceCheckUtils]: 25: Hoare triple {12657#true} ~p6~0 := #t~nondet5; {12657#true} is VALID [2020-07-08 22:16:40,312 INFO L280 TraceCheckUtils]: 26: Hoare triple {12657#true} havoc #t~nondet5; {12657#true} is VALID [2020-07-08 22:16:40,312 INFO L280 TraceCheckUtils]: 27: Hoare triple {12657#true} havoc ~lk6~0; {12657#true} is VALID [2020-07-08 22:16:40,312 INFO L280 TraceCheckUtils]: 28: Hoare triple {12657#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {12657#true} is VALID [2020-07-08 22:16:40,312 INFO L280 TraceCheckUtils]: 29: Hoare triple {12657#true} ~p7~0 := #t~nondet6; {12657#true} is VALID [2020-07-08 22:16:40,313 INFO L280 TraceCheckUtils]: 30: Hoare triple {12657#true} havoc #t~nondet6; {12657#true} is VALID [2020-07-08 22:16:40,313 INFO L280 TraceCheckUtils]: 31: Hoare triple {12657#true} havoc ~lk7~0; {12657#true} is VALID [2020-07-08 22:16:40,313 INFO L280 TraceCheckUtils]: 32: Hoare triple {12657#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {12657#true} is VALID [2020-07-08 22:16:40,313 INFO L280 TraceCheckUtils]: 33: Hoare triple {12657#true} ~p8~0 := #t~nondet7; {12657#true} is VALID [2020-07-08 22:16:40,313 INFO L280 TraceCheckUtils]: 34: Hoare triple {12657#true} havoc #t~nondet7; {12657#true} is VALID [2020-07-08 22:16:40,313 INFO L280 TraceCheckUtils]: 35: Hoare triple {12657#true} havoc ~lk8~0; {12657#true} is VALID [2020-07-08 22:16:40,314 INFO L280 TraceCheckUtils]: 36: Hoare triple {12657#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {12657#true} is VALID [2020-07-08 22:16:40,314 INFO L280 TraceCheckUtils]: 37: Hoare triple {12657#true} ~p9~0 := #t~nondet8; {12657#true} is VALID [2020-07-08 22:16:40,314 INFO L280 TraceCheckUtils]: 38: Hoare triple {12657#true} havoc #t~nondet8; {12657#true} is VALID [2020-07-08 22:16:40,314 INFO L280 TraceCheckUtils]: 39: Hoare triple {12657#true} havoc ~lk9~0; {12657#true} is VALID [2020-07-08 22:16:40,314 INFO L280 TraceCheckUtils]: 40: Hoare triple {12657#true} havoc ~cond~0; {12657#true} is VALID [2020-07-08 22:16:40,314 INFO L280 TraceCheckUtils]: 41: Hoare triple {12657#true} assume !false; {12657#true} is VALID [2020-07-08 22:16:40,314 INFO L280 TraceCheckUtils]: 42: Hoare triple {12657#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {12657#true} is VALID [2020-07-08 22:16:40,315 INFO L280 TraceCheckUtils]: 43: Hoare triple {12657#true} ~cond~0 := #t~nondet9; {12657#true} is VALID [2020-07-08 22:16:40,315 INFO L280 TraceCheckUtils]: 44: Hoare triple {12657#true} havoc #t~nondet9; {12657#true} is VALID [2020-07-08 22:16:40,315 INFO L280 TraceCheckUtils]: 45: Hoare triple {12657#true} assume !(0 == ~cond~0); {12657#true} is VALID [2020-07-08 22:16:40,315 INFO L280 TraceCheckUtils]: 46: Hoare triple {12657#true} ~lk1~0 := 0; {12657#true} is VALID [2020-07-08 22:16:40,315 INFO L280 TraceCheckUtils]: 47: Hoare triple {12657#true} ~lk2~0 := 0; {12657#true} is VALID [2020-07-08 22:16:40,315 INFO L280 TraceCheckUtils]: 48: Hoare triple {12657#true} ~lk3~0 := 0; {12657#true} is VALID [2020-07-08 22:16:40,315 INFO L280 TraceCheckUtils]: 49: Hoare triple {12657#true} ~lk4~0 := 0; {12657#true} is VALID [2020-07-08 22:16:40,315 INFO L280 TraceCheckUtils]: 50: Hoare triple {12657#true} ~lk5~0 := 0; {12657#true} is VALID [2020-07-08 22:16:40,316 INFO L280 TraceCheckUtils]: 51: Hoare triple {12657#true} ~lk6~0 := 0; {12657#true} is VALID [2020-07-08 22:16:40,316 INFO L280 TraceCheckUtils]: 52: Hoare triple {12657#true} ~lk7~0 := 0; {12657#true} is VALID [2020-07-08 22:16:40,316 INFO L280 TraceCheckUtils]: 53: Hoare triple {12657#true} ~lk8~0 := 0; {12657#true} is VALID [2020-07-08 22:16:40,316 INFO L280 TraceCheckUtils]: 54: Hoare triple {12657#true} ~lk9~0 := 0; {12657#true} is VALID [2020-07-08 22:16:40,316 INFO L280 TraceCheckUtils]: 55: Hoare triple {12657#true} assume !(0 != ~p1~0); {12657#true} is VALID [2020-07-08 22:16:40,316 INFO L280 TraceCheckUtils]: 56: Hoare triple {12657#true} assume !(0 != ~p2~0); {12657#true} is VALID [2020-07-08 22:16:40,316 INFO L280 TraceCheckUtils]: 57: Hoare triple {12657#true} assume !(0 != ~p3~0); {12657#true} is VALID [2020-07-08 22:16:40,317 INFO L280 TraceCheckUtils]: 58: Hoare triple {12657#true} assume !(0 != ~p4~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-08 22:16:40,317 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 22:16:40,318 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 22:16:40,318 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 22:16:40,318 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 22:16:40,319 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 22:16:40,319 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 22:16:40,320 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 22:16:40,320 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 22:16:40,320 INFO L280 TraceCheckUtils]: 67: Hoare triple {12661#(= 0 main_~p4~0)} assume 0 != ~p4~0; {12658#false} is VALID [2020-07-08 22:16:40,321 INFO L280 TraceCheckUtils]: 68: Hoare triple {12658#false} assume 1 != ~lk4~0; {12658#false} is VALID [2020-07-08 22:16:40,321 INFO L280 TraceCheckUtils]: 69: Hoare triple {12658#false} assume !false; {12658#false} is VALID [2020-07-08 22:16:40,323 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 22:16:40,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613838941] [2020-07-08 22:16:40,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:16:40,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:16:40,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479314144] [2020-07-08 22:16:40,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-08 22:16:40,324 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:16:40,325 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:16:40,395 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 22:16:40,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:16:40,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:16:40,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:16:40,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:16:40,396 INFO L87 Difference]: Start difference. First operand 479 states and 646 transitions. Second operand 3 states. [2020-07-08 22:16:42,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:42,369 INFO L93 Difference]: Finished difference Result 1331 states and 1824 transitions. [2020-07-08 22:16:42,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:16:42,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-08 22:16:42,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:16:42,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:42,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2020-07-08 22:16:42,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:42,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2020-07-08 22:16:42,376 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 289 transitions. [2020-07-08 22:16:42,625 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 22:16:42,674 INFO L225 Difference]: With dead ends: 1331 [2020-07-08 22:16:42,674 INFO L226 Difference]: Without dead ends: 893 [2020-07-08 22:16:42,676 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 22:16:42,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-07-08 22:16:44,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 891. [2020-07-08 22:16:44,133 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:16:44,133 INFO L82 GeneralOperation]: Start isEquivalent. First operand 893 states. Second operand 891 states. [2020-07-08 22:16:44,133 INFO L74 IsIncluded]: Start isIncluded. First operand 893 states. Second operand 891 states. [2020-07-08 22:16:44,133 INFO L87 Difference]: Start difference. First operand 893 states. Second operand 891 states. [2020-07-08 22:16:44,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:44,182 INFO L93 Difference]: Finished difference Result 893 states and 1203 transitions. [2020-07-08 22:16:44,182 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1203 transitions. [2020-07-08 22:16:44,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:44,185 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:44,185 INFO L74 IsIncluded]: Start isIncluded. First operand 891 states. Second operand 893 states. [2020-07-08 22:16:44,185 INFO L87 Difference]: Start difference. First operand 891 states. Second operand 893 states. [2020-07-08 22:16:44,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:44,236 INFO L93 Difference]: Finished difference Result 893 states and 1203 transitions. [2020-07-08 22:16:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1203 transitions. [2020-07-08 22:16:44,238 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:44,238 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:44,239 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:16:44,239 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:16:44,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-07-08 22:16:44,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1202 transitions. [2020-07-08 22:16:44,293 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1202 transitions. Word has length 70 [2020-07-08 22:16:44,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:16:44,294 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1202 transitions. [2020-07-08 22:16:44,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:16:44,294 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 891 states and 1202 transitions. [2020-07-08 22:16:45,899 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 22:16:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1202 transitions. [2020-07-08 22:16:45,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-08 22:16:45,902 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:16:45,902 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 22:16:45,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-08 22:16:45,903 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:16:45,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:16:45,903 INFO L82 PathProgramCache]: Analyzing trace with hash 490835914, now seen corresponding path program 1 times [2020-07-08 22:16:45,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:16:45,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048710010] [2020-07-08 22:16:45,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:16:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:45,972 INFO L280 TraceCheckUtils]: 0: Hoare triple {18894#true} assume true; {18894#true} is VALID [2020-07-08 22:16:45,973 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {18894#true} {18894#true} #247#return; {18894#true} is VALID [2020-07-08 22:16:45,973 INFO L263 TraceCheckUtils]: 0: Hoare triple {18894#true} call ULTIMATE.init(); {18894#true} is VALID [2020-07-08 22:16:45,973 INFO L280 TraceCheckUtils]: 1: Hoare triple {18894#true} assume true; {18894#true} is VALID [2020-07-08 22:16:45,973 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {18894#true} {18894#true} #247#return; {18894#true} is VALID [2020-07-08 22:16:45,974 INFO L263 TraceCheckUtils]: 3: Hoare triple {18894#true} call #t~ret10 := main(); {18894#true} is VALID [2020-07-08 22:16:45,974 INFO L280 TraceCheckUtils]: 4: Hoare triple {18894#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {18894#true} is VALID [2020-07-08 22:16:45,974 INFO L280 TraceCheckUtils]: 5: Hoare triple {18894#true} ~p1~0 := #t~nondet0; {18894#true} is VALID [2020-07-08 22:16:45,974 INFO L280 TraceCheckUtils]: 6: Hoare triple {18894#true} havoc #t~nondet0; {18894#true} is VALID [2020-07-08 22:16:45,974 INFO L280 TraceCheckUtils]: 7: Hoare triple {18894#true} havoc ~lk1~0; {18894#true} is VALID [2020-07-08 22:16:45,975 INFO L280 TraceCheckUtils]: 8: Hoare triple {18894#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {18894#true} is VALID [2020-07-08 22:16:45,975 INFO L280 TraceCheckUtils]: 9: Hoare triple {18894#true} ~p2~0 := #t~nondet1; {18894#true} is VALID [2020-07-08 22:16:45,975 INFO L280 TraceCheckUtils]: 10: Hoare triple {18894#true} havoc #t~nondet1; {18894#true} is VALID [2020-07-08 22:16:45,975 INFO L280 TraceCheckUtils]: 11: Hoare triple {18894#true} havoc ~lk2~0; {18894#true} is VALID [2020-07-08 22:16:45,975 INFO L280 TraceCheckUtils]: 12: Hoare triple {18894#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {18894#true} is VALID [2020-07-08 22:16:45,976 INFO L280 TraceCheckUtils]: 13: Hoare triple {18894#true} ~p3~0 := #t~nondet2; {18894#true} is VALID [2020-07-08 22:16:45,976 INFO L280 TraceCheckUtils]: 14: Hoare triple {18894#true} havoc #t~nondet2; {18894#true} is VALID [2020-07-08 22:16:45,976 INFO L280 TraceCheckUtils]: 15: Hoare triple {18894#true} havoc ~lk3~0; {18894#true} is VALID [2020-07-08 22:16:45,977 INFO L280 TraceCheckUtils]: 16: Hoare triple {18894#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {18894#true} is VALID [2020-07-08 22:16:45,977 INFO L280 TraceCheckUtils]: 17: Hoare triple {18894#true} ~p4~0 := #t~nondet3; {18894#true} is VALID [2020-07-08 22:16:45,977 INFO L280 TraceCheckUtils]: 18: Hoare triple {18894#true} havoc #t~nondet3; {18894#true} is VALID [2020-07-08 22:16:45,977 INFO L280 TraceCheckUtils]: 19: Hoare triple {18894#true} havoc ~lk4~0; {18894#true} is VALID [2020-07-08 22:16:45,977 INFO L280 TraceCheckUtils]: 20: Hoare triple {18894#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {18894#true} is VALID [2020-07-08 22:16:45,978 INFO L280 TraceCheckUtils]: 21: Hoare triple {18894#true} ~p5~0 := #t~nondet4; {18894#true} is VALID [2020-07-08 22:16:45,978 INFO L280 TraceCheckUtils]: 22: Hoare triple {18894#true} havoc #t~nondet4; {18894#true} is VALID [2020-07-08 22:16:45,983 INFO L280 TraceCheckUtils]: 23: Hoare triple {18894#true} havoc ~lk5~0; {18894#true} is VALID [2020-07-08 22:16:45,983 INFO L280 TraceCheckUtils]: 24: Hoare triple {18894#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {18894#true} is VALID [2020-07-08 22:16:45,983 INFO L280 TraceCheckUtils]: 25: Hoare triple {18894#true} ~p6~0 := #t~nondet5; {18894#true} is VALID [2020-07-08 22:16:45,984 INFO L280 TraceCheckUtils]: 26: Hoare triple {18894#true} havoc #t~nondet5; {18894#true} is VALID [2020-07-08 22:16:45,984 INFO L280 TraceCheckUtils]: 27: Hoare triple {18894#true} havoc ~lk6~0; {18894#true} is VALID [2020-07-08 22:16:45,984 INFO L280 TraceCheckUtils]: 28: Hoare triple {18894#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {18894#true} is VALID [2020-07-08 22:16:45,984 INFO L280 TraceCheckUtils]: 29: Hoare triple {18894#true} ~p7~0 := #t~nondet6; {18894#true} is VALID [2020-07-08 22:16:45,984 INFO L280 TraceCheckUtils]: 30: Hoare triple {18894#true} havoc #t~nondet6; {18894#true} is VALID [2020-07-08 22:16:45,985 INFO L280 TraceCheckUtils]: 31: Hoare triple {18894#true} havoc ~lk7~0; {18894#true} is VALID [2020-07-08 22:16:45,985 INFO L280 TraceCheckUtils]: 32: Hoare triple {18894#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {18894#true} is VALID [2020-07-08 22:16:45,985 INFO L280 TraceCheckUtils]: 33: Hoare triple {18894#true} ~p8~0 := #t~nondet7; {18894#true} is VALID [2020-07-08 22:16:45,985 INFO L280 TraceCheckUtils]: 34: Hoare triple {18894#true} havoc #t~nondet7; {18894#true} is VALID [2020-07-08 22:16:45,985 INFO L280 TraceCheckUtils]: 35: Hoare triple {18894#true} havoc ~lk8~0; {18894#true} is VALID [2020-07-08 22:16:45,985 INFO L280 TraceCheckUtils]: 36: Hoare triple {18894#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {18894#true} is VALID [2020-07-08 22:16:45,986 INFO L280 TraceCheckUtils]: 37: Hoare triple {18894#true} ~p9~0 := #t~nondet8; {18894#true} is VALID [2020-07-08 22:16:45,986 INFO L280 TraceCheckUtils]: 38: Hoare triple {18894#true} havoc #t~nondet8; {18894#true} is VALID [2020-07-08 22:16:45,986 INFO L280 TraceCheckUtils]: 39: Hoare triple {18894#true} havoc ~lk9~0; {18894#true} is VALID [2020-07-08 22:16:45,986 INFO L280 TraceCheckUtils]: 40: Hoare triple {18894#true} havoc ~cond~0; {18894#true} is VALID [2020-07-08 22:16:45,986 INFO L280 TraceCheckUtils]: 41: Hoare triple {18894#true} assume !false; {18894#true} is VALID [2020-07-08 22:16:45,987 INFO L280 TraceCheckUtils]: 42: Hoare triple {18894#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {18894#true} is VALID [2020-07-08 22:16:45,987 INFO L280 TraceCheckUtils]: 43: Hoare triple {18894#true} ~cond~0 := #t~nondet9; {18894#true} is VALID [2020-07-08 22:16:45,987 INFO L280 TraceCheckUtils]: 44: Hoare triple {18894#true} havoc #t~nondet9; {18894#true} is VALID [2020-07-08 22:16:45,987 INFO L280 TraceCheckUtils]: 45: Hoare triple {18894#true} assume !(0 == ~cond~0); {18894#true} is VALID [2020-07-08 22:16:45,987 INFO L280 TraceCheckUtils]: 46: Hoare triple {18894#true} ~lk1~0 := 0; {18894#true} is VALID [2020-07-08 22:16:45,988 INFO L280 TraceCheckUtils]: 47: Hoare triple {18894#true} ~lk2~0 := 0; {18894#true} is VALID [2020-07-08 22:16:45,988 INFO L280 TraceCheckUtils]: 48: Hoare triple {18894#true} ~lk3~0 := 0; {18894#true} is VALID [2020-07-08 22:16:45,988 INFO L280 TraceCheckUtils]: 49: Hoare triple {18894#true} ~lk4~0 := 0; {18894#true} is VALID [2020-07-08 22:16:45,988 INFO L280 TraceCheckUtils]: 50: Hoare triple {18894#true} ~lk5~0 := 0; {18894#true} is VALID [2020-07-08 22:16:45,988 INFO L280 TraceCheckUtils]: 51: Hoare triple {18894#true} ~lk6~0 := 0; {18894#true} is VALID [2020-07-08 22:16:45,989 INFO L280 TraceCheckUtils]: 52: Hoare triple {18894#true} ~lk7~0 := 0; {18894#true} is VALID [2020-07-08 22:16:45,989 INFO L280 TraceCheckUtils]: 53: Hoare triple {18894#true} ~lk8~0 := 0; {18894#true} is VALID [2020-07-08 22:16:45,989 INFO L280 TraceCheckUtils]: 54: Hoare triple {18894#true} ~lk9~0 := 0; {18894#true} is VALID [2020-07-08 22:16:45,989 INFO L280 TraceCheckUtils]: 55: Hoare triple {18894#true} assume !(0 != ~p1~0); {18894#true} is VALID [2020-07-08 22:16:45,989 INFO L280 TraceCheckUtils]: 56: Hoare triple {18894#true} assume !(0 != ~p2~0); {18894#true} is VALID [2020-07-08 22:16:45,989 INFO L280 TraceCheckUtils]: 57: Hoare triple {18894#true} assume !(0 != ~p3~0); {18894#true} is VALID [2020-07-08 22:16:45,990 INFO L280 TraceCheckUtils]: 58: Hoare triple {18894#true} assume 0 != ~p4~0; {18894#true} is VALID [2020-07-08 22:16:45,990 INFO L280 TraceCheckUtils]: 59: Hoare triple {18894#true} ~lk4~0 := 1; {18898#(= 1 main_~lk4~0)} is VALID [2020-07-08 22:16:45,991 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 22:16:45,992 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 22:16:45,992 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 22:16:45,993 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 22:16:45,993 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 22:16:45,994 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 22:16:45,994 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 22:16:45,995 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 22:16:45,995 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 22:16:45,996 INFO L280 TraceCheckUtils]: 69: Hoare triple {18898#(= 1 main_~lk4~0)} assume 1 != ~lk4~0; {18895#false} is VALID [2020-07-08 22:16:45,996 INFO L280 TraceCheckUtils]: 70: Hoare triple {18895#false} assume !false; {18895#false} is VALID [2020-07-08 22:16:45,999 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 22:16:45,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048710010] [2020-07-08 22:16:45,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:16:45,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:16:46,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62668538] [2020-07-08 22:16:46,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-08 22:16:46,000 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:16:46,001 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:16:46,063 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 22:16:46,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:16:46,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:16:46,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:16:46,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:16:46,064 INFO L87 Difference]: Start difference. First operand 891 states and 1202 transitions. Second operand 3 states. [2020-07-08 22:16:48,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:48,366 INFO L93 Difference]: Finished difference Result 1087 states and 1476 transitions. [2020-07-08 22:16:48,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:16:48,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-08 22:16:48,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:16:48,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:48,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2020-07-08 22:16:48,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:48,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2020-07-08 22:16:48,375 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 189 transitions. [2020-07-08 22:16:48,549 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 22:16:48,602 INFO L225 Difference]: With dead ends: 1087 [2020-07-08 22:16:48,603 INFO L226 Difference]: Without dead ends: 1085 [2020-07-08 22:16:48,603 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 22:16:48,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2020-07-08 22:16:50,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 891. [2020-07-08 22:16:50,310 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:16:50,310 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1085 states. Second operand 891 states. [2020-07-08 22:16:50,310 INFO L74 IsIncluded]: Start isIncluded. First operand 1085 states. Second operand 891 states. [2020-07-08 22:16:50,310 INFO L87 Difference]: Start difference. First operand 1085 states. Second operand 891 states. [2020-07-08 22:16:50,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:50,350 INFO L93 Difference]: Finished difference Result 1085 states and 1467 transitions. [2020-07-08 22:16:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1467 transitions. [2020-07-08 22:16:50,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:50,352 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:50,352 INFO L74 IsIncluded]: Start isIncluded. First operand 891 states. Second operand 1085 states. [2020-07-08 22:16:50,352 INFO L87 Difference]: Start difference. First operand 891 states. Second operand 1085 states. [2020-07-08 22:16:50,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:50,407 INFO L93 Difference]: Finished difference Result 1085 states and 1467 transitions. [2020-07-08 22:16:50,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1467 transitions. [2020-07-08 22:16:50,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:16:50,410 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:16:50,410 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:16:50,410 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:16:50,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-07-08 22:16:50,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1194 transitions. [2020-07-08 22:16:50,443 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1194 transitions. Word has length 71 [2020-07-08 22:16:50,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:16:50,443 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1194 transitions. [2020-07-08 22:16:50,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:16:50,443 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 891 states and 1194 transitions. [2020-07-08 22:16:51,886 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 22:16:51,887 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1194 transitions. [2020-07-08 22:16:51,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-08 22:16:51,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:16:51,889 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 22:16:51,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-08 22:16:51,889 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:16:51,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:16:51,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1665621348, now seen corresponding path program 1 times [2020-07-08 22:16:51,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:16:51,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424568626] [2020-07-08 22:16:51,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:16:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:16:51,950 INFO L280 TraceCheckUtils]: 0: Hoare triple {25027#true} assume true; {25027#true} is VALID [2020-07-08 22:16:51,950 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {25027#true} {25027#true} #247#return; {25027#true} is VALID [2020-07-08 22:16:51,950 INFO L263 TraceCheckUtils]: 0: Hoare triple {25027#true} call ULTIMATE.init(); {25027#true} is VALID [2020-07-08 22:16:51,950 INFO L280 TraceCheckUtils]: 1: Hoare triple {25027#true} assume true; {25027#true} is VALID [2020-07-08 22:16:51,950 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {25027#true} {25027#true} #247#return; {25027#true} is VALID [2020-07-08 22:16:51,951 INFO L263 TraceCheckUtils]: 3: Hoare triple {25027#true} call #t~ret10 := main(); {25027#true} is VALID [2020-07-08 22:16:51,951 INFO L280 TraceCheckUtils]: 4: Hoare triple {25027#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {25027#true} is VALID [2020-07-08 22:16:51,951 INFO L280 TraceCheckUtils]: 5: Hoare triple {25027#true} ~p1~0 := #t~nondet0; {25027#true} is VALID [2020-07-08 22:16:51,951 INFO L280 TraceCheckUtils]: 6: Hoare triple {25027#true} havoc #t~nondet0; {25027#true} is VALID [2020-07-08 22:16:51,951 INFO L280 TraceCheckUtils]: 7: Hoare triple {25027#true} havoc ~lk1~0; {25027#true} is VALID [2020-07-08 22:16:51,951 INFO L280 TraceCheckUtils]: 8: Hoare triple {25027#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {25027#true} is VALID [2020-07-08 22:16:51,952 INFO L280 TraceCheckUtils]: 9: Hoare triple {25027#true} ~p2~0 := #t~nondet1; {25027#true} is VALID [2020-07-08 22:16:51,952 INFO L280 TraceCheckUtils]: 10: Hoare triple {25027#true} havoc #t~nondet1; {25027#true} is VALID [2020-07-08 22:16:51,952 INFO L280 TraceCheckUtils]: 11: Hoare triple {25027#true} havoc ~lk2~0; {25027#true} is VALID [2020-07-08 22:16:51,952 INFO L280 TraceCheckUtils]: 12: Hoare triple {25027#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {25027#true} is VALID [2020-07-08 22:16:51,952 INFO L280 TraceCheckUtils]: 13: Hoare triple {25027#true} ~p3~0 := #t~nondet2; {25027#true} is VALID [2020-07-08 22:16:51,953 INFO L280 TraceCheckUtils]: 14: Hoare triple {25027#true} havoc #t~nondet2; {25027#true} is VALID [2020-07-08 22:16:51,953 INFO L280 TraceCheckUtils]: 15: Hoare triple {25027#true} havoc ~lk3~0; {25027#true} is VALID [2020-07-08 22:16:51,953 INFO L280 TraceCheckUtils]: 16: Hoare triple {25027#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {25027#true} is VALID [2020-07-08 22:16:51,953 INFO L280 TraceCheckUtils]: 17: Hoare triple {25027#true} ~p4~0 := #t~nondet3; {25027#true} is VALID [2020-07-08 22:16:51,953 INFO L280 TraceCheckUtils]: 18: Hoare triple {25027#true} havoc #t~nondet3; {25027#true} is VALID [2020-07-08 22:16:51,954 INFO L280 TraceCheckUtils]: 19: Hoare triple {25027#true} havoc ~lk4~0; {25027#true} is VALID [2020-07-08 22:16:51,954 INFO L280 TraceCheckUtils]: 20: Hoare triple {25027#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {25027#true} is VALID [2020-07-08 22:16:51,954 INFO L280 TraceCheckUtils]: 21: Hoare triple {25027#true} ~p5~0 := #t~nondet4; {25027#true} is VALID [2020-07-08 22:16:51,954 INFO L280 TraceCheckUtils]: 22: Hoare triple {25027#true} havoc #t~nondet4; {25027#true} is VALID [2020-07-08 22:16:51,954 INFO L280 TraceCheckUtils]: 23: Hoare triple {25027#true} havoc ~lk5~0; {25027#true} is VALID [2020-07-08 22:16:51,954 INFO L280 TraceCheckUtils]: 24: Hoare triple {25027#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {25027#true} is VALID [2020-07-08 22:16:51,955 INFO L280 TraceCheckUtils]: 25: Hoare triple {25027#true} ~p6~0 := #t~nondet5; {25027#true} is VALID [2020-07-08 22:16:51,955 INFO L280 TraceCheckUtils]: 26: Hoare triple {25027#true} havoc #t~nondet5; {25027#true} is VALID [2020-07-08 22:16:51,955 INFO L280 TraceCheckUtils]: 27: Hoare triple {25027#true} havoc ~lk6~0; {25027#true} is VALID [2020-07-08 22:16:51,955 INFO L280 TraceCheckUtils]: 28: Hoare triple {25027#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {25027#true} is VALID [2020-07-08 22:16:51,955 INFO L280 TraceCheckUtils]: 29: Hoare triple {25027#true} ~p7~0 := #t~nondet6; {25027#true} is VALID [2020-07-08 22:16:51,956 INFO L280 TraceCheckUtils]: 30: Hoare triple {25027#true} havoc #t~nondet6; {25027#true} is VALID [2020-07-08 22:16:51,956 INFO L280 TraceCheckUtils]: 31: Hoare triple {25027#true} havoc ~lk7~0; {25027#true} is VALID [2020-07-08 22:16:51,956 INFO L280 TraceCheckUtils]: 32: Hoare triple {25027#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {25027#true} is VALID [2020-07-08 22:16:51,956 INFO L280 TraceCheckUtils]: 33: Hoare triple {25027#true} ~p8~0 := #t~nondet7; {25027#true} is VALID [2020-07-08 22:16:51,956 INFO L280 TraceCheckUtils]: 34: Hoare triple {25027#true} havoc #t~nondet7; {25027#true} is VALID [2020-07-08 22:16:51,957 INFO L280 TraceCheckUtils]: 35: Hoare triple {25027#true} havoc ~lk8~0; {25027#true} is VALID [2020-07-08 22:16:51,957 INFO L280 TraceCheckUtils]: 36: Hoare triple {25027#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {25027#true} is VALID [2020-07-08 22:16:51,957 INFO L280 TraceCheckUtils]: 37: Hoare triple {25027#true} ~p9~0 := #t~nondet8; {25027#true} is VALID [2020-07-08 22:16:51,957 INFO L280 TraceCheckUtils]: 38: Hoare triple {25027#true} havoc #t~nondet8; {25027#true} is VALID [2020-07-08 22:16:51,957 INFO L280 TraceCheckUtils]: 39: Hoare triple {25027#true} havoc ~lk9~0; {25027#true} is VALID [2020-07-08 22:16:51,957 INFO L280 TraceCheckUtils]: 40: Hoare triple {25027#true} havoc ~cond~0; {25027#true} is VALID [2020-07-08 22:16:51,958 INFO L280 TraceCheckUtils]: 41: Hoare triple {25027#true} assume !false; {25027#true} is VALID [2020-07-08 22:16:51,958 INFO L280 TraceCheckUtils]: 42: Hoare triple {25027#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {25027#true} is VALID [2020-07-08 22:16:51,958 INFO L280 TraceCheckUtils]: 43: Hoare triple {25027#true} ~cond~0 := #t~nondet9; {25027#true} is VALID [2020-07-08 22:16:51,958 INFO L280 TraceCheckUtils]: 44: Hoare triple {25027#true} havoc #t~nondet9; {25027#true} is VALID [2020-07-08 22:16:51,958 INFO L280 TraceCheckUtils]: 45: Hoare triple {25027#true} assume !(0 == ~cond~0); {25027#true} is VALID [2020-07-08 22:16:51,959 INFO L280 TraceCheckUtils]: 46: Hoare triple {25027#true} ~lk1~0 := 0; {25027#true} is VALID [2020-07-08 22:16:51,959 INFO L280 TraceCheckUtils]: 47: Hoare triple {25027#true} ~lk2~0 := 0; {25027#true} is VALID [2020-07-08 22:16:51,959 INFO L280 TraceCheckUtils]: 48: Hoare triple {25027#true} ~lk3~0 := 0; {25027#true} is VALID [2020-07-08 22:16:51,959 INFO L280 TraceCheckUtils]: 49: Hoare triple {25027#true} ~lk4~0 := 0; {25027#true} is VALID [2020-07-08 22:16:51,959 INFO L280 TraceCheckUtils]: 50: Hoare triple {25027#true} ~lk5~0 := 0; {25027#true} is VALID [2020-07-08 22:16:51,959 INFO L280 TraceCheckUtils]: 51: Hoare triple {25027#true} ~lk6~0 := 0; {25027#true} is VALID [2020-07-08 22:16:51,960 INFO L280 TraceCheckUtils]: 52: Hoare triple {25027#true} ~lk7~0 := 0; {25027#true} is VALID [2020-07-08 22:16:51,960 INFO L280 TraceCheckUtils]: 53: Hoare triple {25027#true} ~lk8~0 := 0; {25027#true} is VALID [2020-07-08 22:16:51,960 INFO L280 TraceCheckUtils]: 54: Hoare triple {25027#true} ~lk9~0 := 0; {25027#true} is VALID [2020-07-08 22:16:51,960 INFO L280 TraceCheckUtils]: 55: Hoare triple {25027#true} assume !(0 != ~p1~0); {25027#true} is VALID [2020-07-08 22:16:51,960 INFO L280 TraceCheckUtils]: 56: Hoare triple {25027#true} assume !(0 != ~p2~0); {25027#true} is VALID [2020-07-08 22:16:51,960 INFO L280 TraceCheckUtils]: 57: Hoare triple {25027#true} assume !(0 != ~p3~0); {25027#true} is VALID [2020-07-08 22:16:51,961 INFO L280 TraceCheckUtils]: 58: Hoare triple {25027#true} assume !(0 != ~p4~0); {25027#true} is VALID [2020-07-08 22:16:51,969 INFO L280 TraceCheckUtils]: 59: Hoare triple {25027#true} assume !(0 != ~p5~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-08 22:16:51,970 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 22:16:51,971 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 22:16:51,971 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 22:16:51,974 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 22:16:51,976 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 22:16:51,977 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 22:16:51,977 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 22:16:51,978 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 22:16:51,978 INFO L280 TraceCheckUtils]: 68: Hoare triple {25031#(= 0 main_~p5~0)} assume 0 != ~p5~0; {25028#false} is VALID [2020-07-08 22:16:51,978 INFO L280 TraceCheckUtils]: 69: Hoare triple {25028#false} assume 1 != ~lk5~0; {25028#false} is VALID [2020-07-08 22:16:51,979 INFO L280 TraceCheckUtils]: 70: Hoare triple {25028#false} assume !false; {25028#false} is VALID [2020-07-08 22:16:51,985 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 22:16:51,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424568626] [2020-07-08 22:16:51,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:16:51,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:16:51,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572912566] [2020-07-08 22:16:51,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-08 22:16:51,989 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:16:51,990 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:16:52,062 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 22:16:52,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:16:52,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:16:52,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:16:52,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:16:52,064 INFO L87 Difference]: Start difference. First operand 891 states and 1194 transitions. Second operand 3 states. [2020-07-08 22:16:56,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:16:56,206 INFO L93 Difference]: Finished difference Result 2543 states and 3436 transitions. [2020-07-08 22:16:56,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:16:56,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-08 22:16:56,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:16:56,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:56,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-08 22:16:56,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:16:56,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-08 22:16:56,210 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 286 transitions. [2020-07-08 22:16:56,471 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 22:16:56,580 INFO L225 Difference]: With dead ends: 2543 [2020-07-08 22:16:56,580 INFO L226 Difference]: Without dead ends: 1693 [2020-07-08 22:16:56,583 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 22:16:56,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2020-07-08 22:17:00,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1691. [2020-07-08 22:17:00,009 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:17:00,009 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1693 states. Second operand 1691 states. [2020-07-08 22:17:00,009 INFO L74 IsIncluded]: Start isIncluded. First operand 1693 states. Second operand 1691 states. [2020-07-08 22:17:00,009 INFO L87 Difference]: Start difference. First operand 1693 states. Second operand 1691 states. [2020-07-08 22:17:00,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:17:00,102 INFO L93 Difference]: Finished difference Result 1693 states and 2251 transitions. [2020-07-08 22:17:00,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2251 transitions. [2020-07-08 22:17:00,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:17:00,104 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:17:00,104 INFO L74 IsIncluded]: Start isIncluded. First operand 1691 states. Second operand 1693 states. [2020-07-08 22:17:00,105 INFO L87 Difference]: Start difference. First operand 1691 states. Second operand 1693 states. [2020-07-08 22:17:00,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:17:00,211 INFO L93 Difference]: Finished difference Result 1693 states and 2251 transitions. [2020-07-08 22:17:00,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2251 transitions. [2020-07-08 22:17:00,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:17:00,214 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:17:00,215 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:17:00,215 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:17:00,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-07-08 22:17:00,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2250 transitions. [2020-07-08 22:17:00,302 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2250 transitions. Word has length 71 [2020-07-08 22:17:00,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:17:00,303 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2250 transitions. [2020-07-08 22:17:00,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:17:00,303 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 1691 states and 2250 transitions. [2020-07-08 22:17:03,124 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 22:17:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2250 transitions. [2020-07-08 22:17:03,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-07-08 22:17:03,127 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:17:03,127 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 22:17:03,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-08 22:17:03,127 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:17:03,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:17:03,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1204002519, now seen corresponding path program 1 times [2020-07-08 22:17:03,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:17:03,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248957242] [2020-07-08 22:17:03,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:17:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:17:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:17:03,196 INFO L280 TraceCheckUtils]: 0: Hoare triple {36888#true} assume true; {36888#true} is VALID [2020-07-08 22:17:03,196 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {36888#true} {36888#true} #247#return; {36888#true} is VALID [2020-07-08 22:17:03,196 INFO L263 TraceCheckUtils]: 0: Hoare triple {36888#true} call ULTIMATE.init(); {36888#true} is VALID [2020-07-08 22:17:03,196 INFO L280 TraceCheckUtils]: 1: Hoare triple {36888#true} assume true; {36888#true} is VALID [2020-07-08 22:17:03,197 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36888#true} {36888#true} #247#return; {36888#true} is VALID [2020-07-08 22:17:03,197 INFO L263 TraceCheckUtils]: 3: Hoare triple {36888#true} call #t~ret10 := main(); {36888#true} is VALID [2020-07-08 22:17:03,197 INFO L280 TraceCheckUtils]: 4: Hoare triple {36888#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {36888#true} is VALID [2020-07-08 22:17:03,197 INFO L280 TraceCheckUtils]: 5: Hoare triple {36888#true} ~p1~0 := #t~nondet0; {36888#true} is VALID [2020-07-08 22:17:03,197 INFO L280 TraceCheckUtils]: 6: Hoare triple {36888#true} havoc #t~nondet0; {36888#true} is VALID [2020-07-08 22:17:03,198 INFO L280 TraceCheckUtils]: 7: Hoare triple {36888#true} havoc ~lk1~0; {36888#true} is VALID [2020-07-08 22:17:03,198 INFO L280 TraceCheckUtils]: 8: Hoare triple {36888#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {36888#true} is VALID [2020-07-08 22:17:03,198 INFO L280 TraceCheckUtils]: 9: Hoare triple {36888#true} ~p2~0 := #t~nondet1; {36888#true} is VALID [2020-07-08 22:17:03,198 INFO L280 TraceCheckUtils]: 10: Hoare triple {36888#true} havoc #t~nondet1; {36888#true} is VALID [2020-07-08 22:17:03,198 INFO L280 TraceCheckUtils]: 11: Hoare triple {36888#true} havoc ~lk2~0; {36888#true} is VALID [2020-07-08 22:17:03,198 INFO L280 TraceCheckUtils]: 12: Hoare triple {36888#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {36888#true} is VALID [2020-07-08 22:17:03,199 INFO L280 TraceCheckUtils]: 13: Hoare triple {36888#true} ~p3~0 := #t~nondet2; {36888#true} is VALID [2020-07-08 22:17:03,199 INFO L280 TraceCheckUtils]: 14: Hoare triple {36888#true} havoc #t~nondet2; {36888#true} is VALID [2020-07-08 22:17:03,199 INFO L280 TraceCheckUtils]: 15: Hoare triple {36888#true} havoc ~lk3~0; {36888#true} is VALID [2020-07-08 22:17:03,199 INFO L280 TraceCheckUtils]: 16: Hoare triple {36888#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {36888#true} is VALID [2020-07-08 22:17:03,199 INFO L280 TraceCheckUtils]: 17: Hoare triple {36888#true} ~p4~0 := #t~nondet3; {36888#true} is VALID [2020-07-08 22:17:03,199 INFO L280 TraceCheckUtils]: 18: Hoare triple {36888#true} havoc #t~nondet3; {36888#true} is VALID [2020-07-08 22:17:03,200 INFO L280 TraceCheckUtils]: 19: Hoare triple {36888#true} havoc ~lk4~0; {36888#true} is VALID [2020-07-08 22:17:03,200 INFO L280 TraceCheckUtils]: 20: Hoare triple {36888#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {36888#true} is VALID [2020-07-08 22:17:03,200 INFO L280 TraceCheckUtils]: 21: Hoare triple {36888#true} ~p5~0 := #t~nondet4; {36888#true} is VALID [2020-07-08 22:17:03,200 INFO L280 TraceCheckUtils]: 22: Hoare triple {36888#true} havoc #t~nondet4; {36888#true} is VALID [2020-07-08 22:17:03,200 INFO L280 TraceCheckUtils]: 23: Hoare triple {36888#true} havoc ~lk5~0; {36888#true} is VALID [2020-07-08 22:17:03,201 INFO L280 TraceCheckUtils]: 24: Hoare triple {36888#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {36888#true} is VALID [2020-07-08 22:17:03,201 INFO L280 TraceCheckUtils]: 25: Hoare triple {36888#true} ~p6~0 := #t~nondet5; {36888#true} is VALID [2020-07-08 22:17:03,201 INFO L280 TraceCheckUtils]: 26: Hoare triple {36888#true} havoc #t~nondet5; {36888#true} is VALID [2020-07-08 22:17:03,201 INFO L280 TraceCheckUtils]: 27: Hoare triple {36888#true} havoc ~lk6~0; {36888#true} is VALID [2020-07-08 22:17:03,201 INFO L280 TraceCheckUtils]: 28: Hoare triple {36888#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {36888#true} is VALID [2020-07-08 22:17:03,201 INFO L280 TraceCheckUtils]: 29: Hoare triple {36888#true} ~p7~0 := #t~nondet6; {36888#true} is VALID [2020-07-08 22:17:03,202 INFO L280 TraceCheckUtils]: 30: Hoare triple {36888#true} havoc #t~nondet6; {36888#true} is VALID [2020-07-08 22:17:03,202 INFO L280 TraceCheckUtils]: 31: Hoare triple {36888#true} havoc ~lk7~0; {36888#true} is VALID [2020-07-08 22:17:03,202 INFO L280 TraceCheckUtils]: 32: Hoare triple {36888#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {36888#true} is VALID [2020-07-08 22:17:03,202 INFO L280 TraceCheckUtils]: 33: Hoare triple {36888#true} ~p8~0 := #t~nondet7; {36888#true} is VALID [2020-07-08 22:17:03,202 INFO L280 TraceCheckUtils]: 34: Hoare triple {36888#true} havoc #t~nondet7; {36888#true} is VALID [2020-07-08 22:17:03,202 INFO L280 TraceCheckUtils]: 35: Hoare triple {36888#true} havoc ~lk8~0; {36888#true} is VALID [2020-07-08 22:17:03,203 INFO L280 TraceCheckUtils]: 36: Hoare triple {36888#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {36888#true} is VALID [2020-07-08 22:17:03,203 INFO L280 TraceCheckUtils]: 37: Hoare triple {36888#true} ~p9~0 := #t~nondet8; {36888#true} is VALID [2020-07-08 22:17:03,203 INFO L280 TraceCheckUtils]: 38: Hoare triple {36888#true} havoc #t~nondet8; {36888#true} is VALID [2020-07-08 22:17:03,203 INFO L280 TraceCheckUtils]: 39: Hoare triple {36888#true} havoc ~lk9~0; {36888#true} is VALID [2020-07-08 22:17:03,203 INFO L280 TraceCheckUtils]: 40: Hoare triple {36888#true} havoc ~cond~0; {36888#true} is VALID [2020-07-08 22:17:03,204 INFO L280 TraceCheckUtils]: 41: Hoare triple {36888#true} assume !false; {36888#true} is VALID [2020-07-08 22:17:03,204 INFO L280 TraceCheckUtils]: 42: Hoare triple {36888#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {36888#true} is VALID [2020-07-08 22:17:03,204 INFO L280 TraceCheckUtils]: 43: Hoare triple {36888#true} ~cond~0 := #t~nondet9; {36888#true} is VALID [2020-07-08 22:17:03,204 INFO L280 TraceCheckUtils]: 44: Hoare triple {36888#true} havoc #t~nondet9; {36888#true} is VALID [2020-07-08 22:17:03,204 INFO L280 TraceCheckUtils]: 45: Hoare triple {36888#true} assume !(0 == ~cond~0); {36888#true} is VALID [2020-07-08 22:17:03,205 INFO L280 TraceCheckUtils]: 46: Hoare triple {36888#true} ~lk1~0 := 0; {36888#true} is VALID [2020-07-08 22:17:03,205 INFO L280 TraceCheckUtils]: 47: Hoare triple {36888#true} ~lk2~0 := 0; {36888#true} is VALID [2020-07-08 22:17:03,205 INFO L280 TraceCheckUtils]: 48: Hoare triple {36888#true} ~lk3~0 := 0; {36888#true} is VALID [2020-07-08 22:17:03,205 INFO L280 TraceCheckUtils]: 49: Hoare triple {36888#true} ~lk4~0 := 0; {36888#true} is VALID [2020-07-08 22:17:03,205 INFO L280 TraceCheckUtils]: 50: Hoare triple {36888#true} ~lk5~0 := 0; {36888#true} is VALID [2020-07-08 22:17:03,205 INFO L280 TraceCheckUtils]: 51: Hoare triple {36888#true} ~lk6~0 := 0; {36888#true} is VALID [2020-07-08 22:17:03,206 INFO L280 TraceCheckUtils]: 52: Hoare triple {36888#true} ~lk7~0 := 0; {36888#true} is VALID [2020-07-08 22:17:03,206 INFO L280 TraceCheckUtils]: 53: Hoare triple {36888#true} ~lk8~0 := 0; {36888#true} is VALID [2020-07-08 22:17:03,206 INFO L280 TraceCheckUtils]: 54: Hoare triple {36888#true} ~lk9~0 := 0; {36888#true} is VALID [2020-07-08 22:17:03,206 INFO L280 TraceCheckUtils]: 55: Hoare triple {36888#true} assume !(0 != ~p1~0); {36888#true} is VALID [2020-07-08 22:17:03,206 INFO L280 TraceCheckUtils]: 56: Hoare triple {36888#true} assume !(0 != ~p2~0); {36888#true} is VALID [2020-07-08 22:17:03,206 INFO L280 TraceCheckUtils]: 57: Hoare triple {36888#true} assume !(0 != ~p3~0); {36888#true} is VALID [2020-07-08 22:17:03,207 INFO L280 TraceCheckUtils]: 58: Hoare triple {36888#true} assume !(0 != ~p4~0); {36888#true} is VALID [2020-07-08 22:17:03,207 INFO L280 TraceCheckUtils]: 59: Hoare triple {36888#true} assume 0 != ~p5~0; {36888#true} is VALID [2020-07-08 22:17:03,207 INFO L280 TraceCheckUtils]: 60: Hoare triple {36888#true} ~lk5~0 := 1; {36892#(= 1 main_~lk5~0)} is VALID [2020-07-08 22:17:03,208 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 22:17:03,208 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 22:17:03,209 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 22:17:03,209 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 22:17:03,210 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 22:17:03,210 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 22:17:03,211 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 22:17:03,211 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 22:17:03,212 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 22:17:03,212 INFO L280 TraceCheckUtils]: 70: Hoare triple {36892#(= 1 main_~lk5~0)} assume 1 != ~lk5~0; {36889#false} is VALID [2020-07-08 22:17:03,213 INFO L280 TraceCheckUtils]: 71: Hoare triple {36889#false} assume !false; {36889#false} is VALID [2020-07-08 22:17:03,216 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 22:17:03,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248957242] [2020-07-08 22:17:03,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:17:03,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:17:03,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264627822] [2020-07-08 22:17:03,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-08 22:17:03,218 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:17:03,218 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:17:03,272 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 22:17:03,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:17:03,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:17:03,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:17:03,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:17:03,274 INFO L87 Difference]: Start difference. First operand 1691 states and 2250 transitions. Second operand 3 states. [2020-07-08 22:17:08,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:17:08,248 INFO L93 Difference]: Finished difference Result 2047 states and 2732 transitions. [2020-07-08 22:17:08,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:17:08,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-08 22:17:08,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:17:08,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:17:08,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2020-07-08 22:17:08,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:17:08,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2020-07-08 22:17:08,251 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 185 transitions. [2020-07-08 22:17:08,426 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 22:17:08,561 INFO L225 Difference]: With dead ends: 2047 [2020-07-08 22:17:08,561 INFO L226 Difference]: Without dead ends: 2045 [2020-07-08 22:17:08,562 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 22:17:08,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2020-07-08 22:17:12,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1691. [2020-07-08 22:17:12,340 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:17:12,340 INFO L82 GeneralOperation]: Start isEquivalent. First operand 2045 states. Second operand 1691 states. [2020-07-08 22:17:12,340 INFO L74 IsIncluded]: Start isIncluded. First operand 2045 states. Second operand 1691 states. [2020-07-08 22:17:12,340 INFO L87 Difference]: Start difference. First operand 2045 states. Second operand 1691 states. [2020-07-08 22:17:12,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:17:12,475 INFO L93 Difference]: Finished difference Result 2045 states and 2715 transitions. [2020-07-08 22:17:12,475 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2715 transitions. [2020-07-08 22:17:12,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:17:12,479 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:17:12,479 INFO L74 IsIncluded]: Start isIncluded. First operand 1691 states. Second operand 2045 states. [2020-07-08 22:17:12,479 INFO L87 Difference]: Start difference. First operand 1691 states. Second operand 2045 states. [2020-07-08 22:17:12,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:17:12,658 INFO L93 Difference]: Finished difference Result 2045 states and 2715 transitions. [2020-07-08 22:17:12,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2715 transitions. [2020-07-08 22:17:12,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:17:12,661 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:17:12,661 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:17:12,661 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:17:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-07-08 22:17:12,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2234 transitions. [2020-07-08 22:17:12,754 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2234 transitions. Word has length 72 [2020-07-08 22:17:12,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:17:12,754 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2234 transitions. [2020-07-08 22:17:12,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:17:12,754 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 1691 states and 2234 transitions. [2020-07-08 22:17:15,585 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 22:17:15,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2234 transitions. [2020-07-08 22:17:15,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-07-08 22:17:15,587 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:17:15,588 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 22:17:15,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-08 22:17:15,590 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:17:15,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:17:15,590 INFO L82 PathProgramCache]: Analyzing trace with hash 94899998, now seen corresponding path program 1 times [2020-07-08 22:17:15,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:17:15,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48318088] [2020-07-08 22:17:15,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:17:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:17:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:17:15,639 INFO L280 TraceCheckUtils]: 0: Hoare triple {48461#true} assume true; {48461#true} is VALID [2020-07-08 22:17:15,640 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {48461#true} {48461#true} #247#return; {48461#true} is VALID [2020-07-08 22:17:15,640 INFO L263 TraceCheckUtils]: 0: Hoare triple {48461#true} call ULTIMATE.init(); {48461#true} is VALID [2020-07-08 22:17:15,640 INFO L280 TraceCheckUtils]: 1: Hoare triple {48461#true} assume true; {48461#true} is VALID [2020-07-08 22:17:15,640 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {48461#true} {48461#true} #247#return; {48461#true} is VALID [2020-07-08 22:17:15,640 INFO L263 TraceCheckUtils]: 3: Hoare triple {48461#true} call #t~ret10 := main(); {48461#true} is VALID [2020-07-08 22:17:15,641 INFO L280 TraceCheckUtils]: 4: Hoare triple {48461#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {48461#true} is VALID [2020-07-08 22:17:15,641 INFO L280 TraceCheckUtils]: 5: Hoare triple {48461#true} ~p1~0 := #t~nondet0; {48461#true} is VALID [2020-07-08 22:17:15,641 INFO L280 TraceCheckUtils]: 6: Hoare triple {48461#true} havoc #t~nondet0; {48461#true} is VALID [2020-07-08 22:17:15,641 INFO L280 TraceCheckUtils]: 7: Hoare triple {48461#true} havoc ~lk1~0; {48461#true} is VALID [2020-07-08 22:17:15,641 INFO L280 TraceCheckUtils]: 8: Hoare triple {48461#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {48461#true} is VALID [2020-07-08 22:17:15,642 INFO L280 TraceCheckUtils]: 9: Hoare triple {48461#true} ~p2~0 := #t~nondet1; {48461#true} is VALID [2020-07-08 22:17:15,642 INFO L280 TraceCheckUtils]: 10: Hoare triple {48461#true} havoc #t~nondet1; {48461#true} is VALID [2020-07-08 22:17:15,642 INFO L280 TraceCheckUtils]: 11: Hoare triple {48461#true} havoc ~lk2~0; {48461#true} is VALID [2020-07-08 22:17:15,642 INFO L280 TraceCheckUtils]: 12: Hoare triple {48461#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {48461#true} is VALID [2020-07-08 22:17:15,642 INFO L280 TraceCheckUtils]: 13: Hoare triple {48461#true} ~p3~0 := #t~nondet2; {48461#true} is VALID [2020-07-08 22:17:15,643 INFO L280 TraceCheckUtils]: 14: Hoare triple {48461#true} havoc #t~nondet2; {48461#true} is VALID [2020-07-08 22:17:15,643 INFO L280 TraceCheckUtils]: 15: Hoare triple {48461#true} havoc ~lk3~0; {48461#true} is VALID [2020-07-08 22:17:15,643 INFO L280 TraceCheckUtils]: 16: Hoare triple {48461#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {48461#true} is VALID [2020-07-08 22:17:15,643 INFO L280 TraceCheckUtils]: 17: Hoare triple {48461#true} ~p4~0 := #t~nondet3; {48461#true} is VALID [2020-07-08 22:17:15,643 INFO L280 TraceCheckUtils]: 18: Hoare triple {48461#true} havoc #t~nondet3; {48461#true} is VALID [2020-07-08 22:17:15,644 INFO L280 TraceCheckUtils]: 19: Hoare triple {48461#true} havoc ~lk4~0; {48461#true} is VALID [2020-07-08 22:17:15,644 INFO L280 TraceCheckUtils]: 20: Hoare triple {48461#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {48461#true} is VALID [2020-07-08 22:17:15,644 INFO L280 TraceCheckUtils]: 21: Hoare triple {48461#true} ~p5~0 := #t~nondet4; {48461#true} is VALID [2020-07-08 22:17:15,644 INFO L280 TraceCheckUtils]: 22: Hoare triple {48461#true} havoc #t~nondet4; {48461#true} is VALID [2020-07-08 22:17:15,644 INFO L280 TraceCheckUtils]: 23: Hoare triple {48461#true} havoc ~lk5~0; {48461#true} is VALID [2020-07-08 22:17:15,645 INFO L280 TraceCheckUtils]: 24: Hoare triple {48461#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {48461#true} is VALID [2020-07-08 22:17:15,645 INFO L280 TraceCheckUtils]: 25: Hoare triple {48461#true} ~p6~0 := #t~nondet5; {48461#true} is VALID [2020-07-08 22:17:15,645 INFO L280 TraceCheckUtils]: 26: Hoare triple {48461#true} havoc #t~nondet5; {48461#true} is VALID [2020-07-08 22:17:15,645 INFO L280 TraceCheckUtils]: 27: Hoare triple {48461#true} havoc ~lk6~0; {48461#true} is VALID [2020-07-08 22:17:15,645 INFO L280 TraceCheckUtils]: 28: Hoare triple {48461#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {48461#true} is VALID [2020-07-08 22:17:15,646 INFO L280 TraceCheckUtils]: 29: Hoare triple {48461#true} ~p7~0 := #t~nondet6; {48461#true} is VALID [2020-07-08 22:17:15,646 INFO L280 TraceCheckUtils]: 30: Hoare triple {48461#true} havoc #t~nondet6; {48461#true} is VALID [2020-07-08 22:17:15,646 INFO L280 TraceCheckUtils]: 31: Hoare triple {48461#true} havoc ~lk7~0; {48461#true} is VALID [2020-07-08 22:17:15,646 INFO L280 TraceCheckUtils]: 32: Hoare triple {48461#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {48461#true} is VALID [2020-07-08 22:17:15,646 INFO L280 TraceCheckUtils]: 33: Hoare triple {48461#true} ~p8~0 := #t~nondet7; {48461#true} is VALID [2020-07-08 22:17:15,646 INFO L280 TraceCheckUtils]: 34: Hoare triple {48461#true} havoc #t~nondet7; {48461#true} is VALID [2020-07-08 22:17:15,647 INFO L280 TraceCheckUtils]: 35: Hoare triple {48461#true} havoc ~lk8~0; {48461#true} is VALID [2020-07-08 22:17:15,647 INFO L280 TraceCheckUtils]: 36: Hoare triple {48461#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {48461#true} is VALID [2020-07-08 22:17:15,647 INFO L280 TraceCheckUtils]: 37: Hoare triple {48461#true} ~p9~0 := #t~nondet8; {48461#true} is VALID [2020-07-08 22:17:15,647 INFO L280 TraceCheckUtils]: 38: Hoare triple {48461#true} havoc #t~nondet8; {48461#true} is VALID [2020-07-08 22:17:15,647 INFO L280 TraceCheckUtils]: 39: Hoare triple {48461#true} havoc ~lk9~0; {48461#true} is VALID [2020-07-08 22:17:15,647 INFO L280 TraceCheckUtils]: 40: Hoare triple {48461#true} havoc ~cond~0; {48461#true} is VALID [2020-07-08 22:17:15,648 INFO L280 TraceCheckUtils]: 41: Hoare triple {48461#true} assume !false; {48461#true} is VALID [2020-07-08 22:17:15,648 INFO L280 TraceCheckUtils]: 42: Hoare triple {48461#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {48461#true} is VALID [2020-07-08 22:17:15,648 INFO L280 TraceCheckUtils]: 43: Hoare triple {48461#true} ~cond~0 := #t~nondet9; {48461#true} is VALID [2020-07-08 22:17:15,648 INFO L280 TraceCheckUtils]: 44: Hoare triple {48461#true} havoc #t~nondet9; {48461#true} is VALID [2020-07-08 22:17:15,648 INFO L280 TraceCheckUtils]: 45: Hoare triple {48461#true} assume !(0 == ~cond~0); {48461#true} is VALID [2020-07-08 22:17:15,649 INFO L280 TraceCheckUtils]: 46: Hoare triple {48461#true} ~lk1~0 := 0; {48461#true} is VALID [2020-07-08 22:17:15,649 INFO L280 TraceCheckUtils]: 47: Hoare triple {48461#true} ~lk2~0 := 0; {48461#true} is VALID [2020-07-08 22:17:15,649 INFO L280 TraceCheckUtils]: 48: Hoare triple {48461#true} ~lk3~0 := 0; {48461#true} is VALID [2020-07-08 22:17:15,649 INFO L280 TraceCheckUtils]: 49: Hoare triple {48461#true} ~lk4~0 := 0; {48461#true} is VALID [2020-07-08 22:17:15,649 INFO L280 TraceCheckUtils]: 50: Hoare triple {48461#true} ~lk5~0 := 0; {48461#true} is VALID [2020-07-08 22:17:15,649 INFO L280 TraceCheckUtils]: 51: Hoare triple {48461#true} ~lk6~0 := 0; {48461#true} is VALID [2020-07-08 22:17:15,650 INFO L280 TraceCheckUtils]: 52: Hoare triple {48461#true} ~lk7~0 := 0; {48461#true} is VALID [2020-07-08 22:17:15,650 INFO L280 TraceCheckUtils]: 53: Hoare triple {48461#true} ~lk8~0 := 0; {48461#true} is VALID [2020-07-08 22:17:15,650 INFO L280 TraceCheckUtils]: 54: Hoare triple {48461#true} ~lk9~0 := 0; {48461#true} is VALID [2020-07-08 22:17:15,650 INFO L280 TraceCheckUtils]: 55: Hoare triple {48461#true} assume !(0 != ~p1~0); {48461#true} is VALID [2020-07-08 22:17:15,650 INFO L280 TraceCheckUtils]: 56: Hoare triple {48461#true} assume !(0 != ~p2~0); {48461#true} is VALID [2020-07-08 22:17:15,650 INFO L280 TraceCheckUtils]: 57: Hoare triple {48461#true} assume !(0 != ~p3~0); {48461#true} is VALID [2020-07-08 22:17:15,651 INFO L280 TraceCheckUtils]: 58: Hoare triple {48461#true} assume !(0 != ~p4~0); {48461#true} is VALID [2020-07-08 22:17:15,651 INFO L280 TraceCheckUtils]: 59: Hoare triple {48461#true} assume !(0 != ~p5~0); {48461#true} is VALID [2020-07-08 22:17:15,651 INFO L280 TraceCheckUtils]: 60: Hoare triple {48461#true} assume !(0 != ~p6~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-08 22:17:15,652 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 22:17:15,652 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 22:17:15,653 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 22:17:15,653 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 22:17:15,654 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 22:17:15,654 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 22:17:15,654 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 22:17:15,655 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 22:17:15,655 INFO L280 TraceCheckUtils]: 69: Hoare triple {48465#(= 0 main_~p6~0)} assume 0 != ~p6~0; {48462#false} is VALID [2020-07-08 22:17:15,656 INFO L280 TraceCheckUtils]: 70: Hoare triple {48462#false} assume 1 != ~lk6~0; {48462#false} is VALID [2020-07-08 22:17:15,656 INFO L280 TraceCheckUtils]: 71: Hoare triple {48462#false} assume !false; {48462#false} is VALID [2020-07-08 22:17:15,659 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 22:17:15,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48318088] [2020-07-08 22:17:15,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:17:15,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:17:15,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184897230] [2020-07-08 22:17:15,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-08 22:17:15,661 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:17:15,661 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:17:15,714 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 22:17:15,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:17:15,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:17:15,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:17:15,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:17:15,715 INFO L87 Difference]: Start difference. First operand 1691 states and 2234 transitions. Second operand 3 states. [2020-07-08 22:17:25,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:17:25,039 INFO L93 Difference]: Finished difference Result 4895 states and 6492 transitions. [2020-07-08 22:17:25,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:17:25,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-08 22:17:25,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:17:25,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:17:25,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2020-07-08 22:17:25,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:17:25,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2020-07-08 22:17:25,044 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 283 transitions. [2020-07-08 22:17:25,291 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 22:17:25,668 INFO L225 Difference]: With dead ends: 4895 [2020-07-08 22:17:25,668 INFO L226 Difference]: Without dead ends: 3245 [2020-07-08 22:17:25,672 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 22:17:25,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2020-07-08 22:17:33,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3243. [2020-07-08 22:17:33,401 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:17:33,401 INFO L82 GeneralOperation]: Start isEquivalent. First operand 3245 states. Second operand 3243 states. [2020-07-08 22:17:33,401 INFO L74 IsIncluded]: Start isIncluded. First operand 3245 states. Second operand 3243 states. [2020-07-08 22:17:33,401 INFO L87 Difference]: Start difference. First operand 3245 states. Second operand 3243 states. [2020-07-08 22:17:33,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:17:33,722 INFO L93 Difference]: Finished difference Result 3245 states and 4235 transitions. [2020-07-08 22:17:33,722 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4235 transitions. [2020-07-08 22:17:33,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:17:33,725 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:17:33,725 INFO L74 IsIncluded]: Start isIncluded. First operand 3243 states. Second operand 3245 states. [2020-07-08 22:17:33,725 INFO L87 Difference]: Start difference. First operand 3243 states. Second operand 3245 states. [2020-07-08 22:17:34,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:17:34,067 INFO L93 Difference]: Finished difference Result 3245 states and 4235 transitions. [2020-07-08 22:17:34,067 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4235 transitions. [2020-07-08 22:17:34,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:17:34,071 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:17:34,071 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:17:34,071 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:17:34,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-07-08 22:17:34,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4234 transitions. [2020-07-08 22:17:34,435 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4234 transitions. Word has length 72 [2020-07-08 22:17:34,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:17:34,435 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 4234 transitions. [2020-07-08 22:17:34,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:17:34,435 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3243 states and 4234 transitions. [2020-07-08 22:17:39,921 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 22:17:39,922 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4234 transitions. [2020-07-08 22:17:39,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-08 22:17:39,924 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:17:39,925 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 22:17:39,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-08 22:17:39,925 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:17:39,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:17:39,925 INFO L82 PathProgramCache]: Analyzing trace with hash 2090581278, now seen corresponding path program 1 times [2020-07-08 22:17:39,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:17:39,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1614722761] [2020-07-08 22:17:39,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:17:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:17:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:17:39,965 INFO L280 TraceCheckUtils]: 0: Hoare triple {71234#true} assume true; {71234#true} is VALID [2020-07-08 22:17:39,965 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {71234#true} {71234#true} #247#return; {71234#true} is VALID [2020-07-08 22:17:39,966 INFO L263 TraceCheckUtils]: 0: Hoare triple {71234#true} call ULTIMATE.init(); {71234#true} is VALID [2020-07-08 22:17:39,966 INFO L280 TraceCheckUtils]: 1: Hoare triple {71234#true} assume true; {71234#true} is VALID [2020-07-08 22:17:39,966 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {71234#true} {71234#true} #247#return; {71234#true} is VALID [2020-07-08 22:17:39,966 INFO L263 TraceCheckUtils]: 3: Hoare triple {71234#true} call #t~ret10 := main(); {71234#true} is VALID [2020-07-08 22:17:39,966 INFO L280 TraceCheckUtils]: 4: Hoare triple {71234#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {71234#true} is VALID [2020-07-08 22:17:39,967 INFO L280 TraceCheckUtils]: 5: Hoare triple {71234#true} ~p1~0 := #t~nondet0; {71234#true} is VALID [2020-07-08 22:17:39,967 INFO L280 TraceCheckUtils]: 6: Hoare triple {71234#true} havoc #t~nondet0; {71234#true} is VALID [2020-07-08 22:17:39,967 INFO L280 TraceCheckUtils]: 7: Hoare triple {71234#true} havoc ~lk1~0; {71234#true} is VALID [2020-07-08 22:17:39,967 INFO L280 TraceCheckUtils]: 8: Hoare triple {71234#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {71234#true} is VALID [2020-07-08 22:17:39,967 INFO L280 TraceCheckUtils]: 9: Hoare triple {71234#true} ~p2~0 := #t~nondet1; {71234#true} is VALID [2020-07-08 22:17:39,968 INFO L280 TraceCheckUtils]: 10: Hoare triple {71234#true} havoc #t~nondet1; {71234#true} is VALID [2020-07-08 22:17:39,968 INFO L280 TraceCheckUtils]: 11: Hoare triple {71234#true} havoc ~lk2~0; {71234#true} is VALID [2020-07-08 22:17:39,968 INFO L280 TraceCheckUtils]: 12: Hoare triple {71234#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {71234#true} is VALID [2020-07-08 22:17:39,968 INFO L280 TraceCheckUtils]: 13: Hoare triple {71234#true} ~p3~0 := #t~nondet2; {71234#true} is VALID [2020-07-08 22:17:39,968 INFO L280 TraceCheckUtils]: 14: Hoare triple {71234#true} havoc #t~nondet2; {71234#true} is VALID [2020-07-08 22:17:39,969 INFO L280 TraceCheckUtils]: 15: Hoare triple {71234#true} havoc ~lk3~0; {71234#true} is VALID [2020-07-08 22:17:39,969 INFO L280 TraceCheckUtils]: 16: Hoare triple {71234#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {71234#true} is VALID [2020-07-08 22:17:39,969 INFO L280 TraceCheckUtils]: 17: Hoare triple {71234#true} ~p4~0 := #t~nondet3; {71234#true} is VALID [2020-07-08 22:17:39,969 INFO L280 TraceCheckUtils]: 18: Hoare triple {71234#true} havoc #t~nondet3; {71234#true} is VALID [2020-07-08 22:17:39,969 INFO L280 TraceCheckUtils]: 19: Hoare triple {71234#true} havoc ~lk4~0; {71234#true} is VALID [2020-07-08 22:17:39,969 INFO L280 TraceCheckUtils]: 20: Hoare triple {71234#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {71234#true} is VALID [2020-07-08 22:17:39,970 INFO L280 TraceCheckUtils]: 21: Hoare triple {71234#true} ~p5~0 := #t~nondet4; {71234#true} is VALID [2020-07-08 22:17:39,970 INFO L280 TraceCheckUtils]: 22: Hoare triple {71234#true} havoc #t~nondet4; {71234#true} is VALID [2020-07-08 22:17:39,970 INFO L280 TraceCheckUtils]: 23: Hoare triple {71234#true} havoc ~lk5~0; {71234#true} is VALID [2020-07-08 22:17:39,970 INFO L280 TraceCheckUtils]: 24: Hoare triple {71234#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {71234#true} is VALID [2020-07-08 22:17:39,970 INFO L280 TraceCheckUtils]: 25: Hoare triple {71234#true} ~p6~0 := #t~nondet5; {71234#true} is VALID [2020-07-08 22:17:39,971 INFO L280 TraceCheckUtils]: 26: Hoare triple {71234#true} havoc #t~nondet5; {71234#true} is VALID [2020-07-08 22:17:39,971 INFO L280 TraceCheckUtils]: 27: Hoare triple {71234#true} havoc ~lk6~0; {71234#true} is VALID [2020-07-08 22:17:39,971 INFO L280 TraceCheckUtils]: 28: Hoare triple {71234#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {71234#true} is VALID [2020-07-08 22:17:39,971 INFO L280 TraceCheckUtils]: 29: Hoare triple {71234#true} ~p7~0 := #t~nondet6; {71234#true} is VALID [2020-07-08 22:17:39,971 INFO L280 TraceCheckUtils]: 30: Hoare triple {71234#true} havoc #t~nondet6; {71234#true} is VALID [2020-07-08 22:17:39,972 INFO L280 TraceCheckUtils]: 31: Hoare triple {71234#true} havoc ~lk7~0; {71234#true} is VALID [2020-07-08 22:17:39,972 INFO L280 TraceCheckUtils]: 32: Hoare triple {71234#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {71234#true} is VALID [2020-07-08 22:17:39,972 INFO L280 TraceCheckUtils]: 33: Hoare triple {71234#true} ~p8~0 := #t~nondet7; {71234#true} is VALID [2020-07-08 22:17:39,972 INFO L280 TraceCheckUtils]: 34: Hoare triple {71234#true} havoc #t~nondet7; {71234#true} is VALID [2020-07-08 22:17:39,972 INFO L280 TraceCheckUtils]: 35: Hoare triple {71234#true} havoc ~lk8~0; {71234#true} is VALID [2020-07-08 22:17:39,973 INFO L280 TraceCheckUtils]: 36: Hoare triple {71234#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {71234#true} is VALID [2020-07-08 22:17:39,973 INFO L280 TraceCheckUtils]: 37: Hoare triple {71234#true} ~p9~0 := #t~nondet8; {71234#true} is VALID [2020-07-08 22:17:39,973 INFO L280 TraceCheckUtils]: 38: Hoare triple {71234#true} havoc #t~nondet8; {71234#true} is VALID [2020-07-08 22:17:39,973 INFO L280 TraceCheckUtils]: 39: Hoare triple {71234#true} havoc ~lk9~0; {71234#true} is VALID [2020-07-08 22:17:39,973 INFO L280 TraceCheckUtils]: 40: Hoare triple {71234#true} havoc ~cond~0; {71234#true} is VALID [2020-07-08 22:17:39,973 INFO L280 TraceCheckUtils]: 41: Hoare triple {71234#true} assume !false; {71234#true} is VALID [2020-07-08 22:17:39,974 INFO L280 TraceCheckUtils]: 42: Hoare triple {71234#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {71234#true} is VALID [2020-07-08 22:17:39,974 INFO L280 TraceCheckUtils]: 43: Hoare triple {71234#true} ~cond~0 := #t~nondet9; {71234#true} is VALID [2020-07-08 22:17:39,974 INFO L280 TraceCheckUtils]: 44: Hoare triple {71234#true} havoc #t~nondet9; {71234#true} is VALID [2020-07-08 22:17:39,974 INFO L280 TraceCheckUtils]: 45: Hoare triple {71234#true} assume !(0 == ~cond~0); {71234#true} is VALID [2020-07-08 22:17:39,974 INFO L280 TraceCheckUtils]: 46: Hoare triple {71234#true} ~lk1~0 := 0; {71234#true} is VALID [2020-07-08 22:17:39,975 INFO L280 TraceCheckUtils]: 47: Hoare triple {71234#true} ~lk2~0 := 0; {71234#true} is VALID [2020-07-08 22:17:39,975 INFO L280 TraceCheckUtils]: 48: Hoare triple {71234#true} ~lk3~0 := 0; {71234#true} is VALID [2020-07-08 22:17:39,975 INFO L280 TraceCheckUtils]: 49: Hoare triple {71234#true} ~lk4~0 := 0; {71234#true} is VALID [2020-07-08 22:17:39,975 INFO L280 TraceCheckUtils]: 50: Hoare triple {71234#true} ~lk5~0 := 0; {71234#true} is VALID [2020-07-08 22:17:39,975 INFO L280 TraceCheckUtils]: 51: Hoare triple {71234#true} ~lk6~0 := 0; {71234#true} is VALID [2020-07-08 22:17:39,976 INFO L280 TraceCheckUtils]: 52: Hoare triple {71234#true} ~lk7~0 := 0; {71234#true} is VALID [2020-07-08 22:17:39,976 INFO L280 TraceCheckUtils]: 53: Hoare triple {71234#true} ~lk8~0 := 0; {71234#true} is VALID [2020-07-08 22:17:39,976 INFO L280 TraceCheckUtils]: 54: Hoare triple {71234#true} ~lk9~0 := 0; {71234#true} is VALID [2020-07-08 22:17:39,976 INFO L280 TraceCheckUtils]: 55: Hoare triple {71234#true} assume !(0 != ~p1~0); {71234#true} is VALID [2020-07-08 22:17:39,976 INFO L280 TraceCheckUtils]: 56: Hoare triple {71234#true} assume !(0 != ~p2~0); {71234#true} is VALID [2020-07-08 22:17:39,976 INFO L280 TraceCheckUtils]: 57: Hoare triple {71234#true} assume !(0 != ~p3~0); {71234#true} is VALID [2020-07-08 22:17:39,977 INFO L280 TraceCheckUtils]: 58: Hoare triple {71234#true} assume !(0 != ~p4~0); {71234#true} is VALID [2020-07-08 22:17:39,977 INFO L280 TraceCheckUtils]: 59: Hoare triple {71234#true} assume !(0 != ~p5~0); {71234#true} is VALID [2020-07-08 22:17:39,977 INFO L280 TraceCheckUtils]: 60: Hoare triple {71234#true} assume 0 != ~p6~0; {71234#true} is VALID [2020-07-08 22:17:39,978 INFO L280 TraceCheckUtils]: 61: Hoare triple {71234#true} ~lk6~0 := 1; {71238#(= 1 main_~lk6~0)} is VALID [2020-07-08 22:17:39,978 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 22:17:39,979 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 22:17:39,980 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 22:17:39,980 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 22:17:39,981 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 22:17:39,981 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 22:17:39,982 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 22:17:39,982 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 22:17:39,983 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 22:17:39,983 INFO L280 TraceCheckUtils]: 71: Hoare triple {71238#(= 1 main_~lk6~0)} assume 1 != ~lk6~0; {71235#false} is VALID [2020-07-08 22:17:39,984 INFO L280 TraceCheckUtils]: 72: Hoare triple {71235#false} assume !false; {71235#false} is VALID [2020-07-08 22:17:39,987 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 22:17:39,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1614722761] [2020-07-08 22:17:39,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:17:39,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:17:39,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167038836] [2020-07-08 22:17:39,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-08 22:17:39,990 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:17:39,991 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:17:40,073 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 22:17:40,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:17:40,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:17:40,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:17:40,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:17:40,074 INFO L87 Difference]: Start difference. First operand 3243 states and 4234 transitions. Second operand 3 states. [2020-07-08 22:17:51,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:17:51,060 INFO L93 Difference]: Finished difference Result 3887 states and 5068 transitions. [2020-07-08 22:17:51,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:17:51,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-08 22:17:51,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:17:51,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:17:51,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2020-07-08 22:17:51,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:17:51,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2020-07-08 22:17:51,063 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 181 transitions. [2020-07-08 22:17:51,229 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 22:17:51,774 INFO L225 Difference]: With dead ends: 3887 [2020-07-08 22:17:51,775 INFO L226 Difference]: Without dead ends: 3885 [2020-07-08 22:17:51,776 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 22:17:51,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2020-07-08 22:18:00,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3243. [2020-07-08 22:18:00,473 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:18:00,473 INFO L82 GeneralOperation]: Start isEquivalent. First operand 3885 states. Second operand 3243 states. [2020-07-08 22:18:00,474 INFO L74 IsIncluded]: Start isIncluded. First operand 3885 states. Second operand 3243 states. [2020-07-08 22:18:00,474 INFO L87 Difference]: Start difference. First operand 3885 states. Second operand 3243 states. [2020-07-08 22:18:00,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:18:00,927 INFO L93 Difference]: Finished difference Result 3885 states and 5035 transitions. [2020-07-08 22:18:00,928 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5035 transitions. [2020-07-08 22:18:00,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:18:00,932 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:18:00,932 INFO L74 IsIncluded]: Start isIncluded. First operand 3243 states. Second operand 3885 states. [2020-07-08 22:18:00,932 INFO L87 Difference]: Start difference. First operand 3243 states. Second operand 3885 states. [2020-07-08 22:18:01,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:18:01,377 INFO L93 Difference]: Finished difference Result 3885 states and 5035 transitions. [2020-07-08 22:18:01,377 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5035 transitions. [2020-07-08 22:18:01,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:18:01,381 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:18:01,381 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:18:01,381 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:18:01,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-07-08 22:18:01,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4202 transitions. [2020-07-08 22:18:01,717 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4202 transitions. Word has length 73 [2020-07-08 22:18:01,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:18:01,717 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 4202 transitions. [2020-07-08 22:18:01,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:18:01,718 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3243 states and 4202 transitions. [2020-07-08 22:18:07,332 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 22:18:07,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4202 transitions. [2020-07-08 22:18:07,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-08 22:18:07,335 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:18:07,335 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 22:18:07,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-08 22:18:07,335 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:18:07,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:18:07,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1352821224, now seen corresponding path program 1 times [2020-07-08 22:18:07,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:18:07,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199105675] [2020-07-08 22:18:07,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:18:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:18:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:18:07,369 INFO L280 TraceCheckUtils]: 0: Hoare triple {93271#true} assume true; {93271#true} is VALID [2020-07-08 22:18:07,370 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {93271#true} {93271#true} #247#return; {93271#true} is VALID [2020-07-08 22:18:07,370 INFO L263 TraceCheckUtils]: 0: Hoare triple {93271#true} call ULTIMATE.init(); {93271#true} is VALID [2020-07-08 22:18:07,370 INFO L280 TraceCheckUtils]: 1: Hoare triple {93271#true} assume true; {93271#true} is VALID [2020-07-08 22:18:07,370 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {93271#true} {93271#true} #247#return; {93271#true} is VALID [2020-07-08 22:18:07,370 INFO L263 TraceCheckUtils]: 3: Hoare triple {93271#true} call #t~ret10 := main(); {93271#true} is VALID [2020-07-08 22:18:07,371 INFO L280 TraceCheckUtils]: 4: Hoare triple {93271#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {93271#true} is VALID [2020-07-08 22:18:07,371 INFO L280 TraceCheckUtils]: 5: Hoare triple {93271#true} ~p1~0 := #t~nondet0; {93271#true} is VALID [2020-07-08 22:18:07,371 INFO L280 TraceCheckUtils]: 6: Hoare triple {93271#true} havoc #t~nondet0; {93271#true} is VALID [2020-07-08 22:18:07,371 INFO L280 TraceCheckUtils]: 7: Hoare triple {93271#true} havoc ~lk1~0; {93271#true} is VALID [2020-07-08 22:18:07,371 INFO L280 TraceCheckUtils]: 8: Hoare triple {93271#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {93271#true} is VALID [2020-07-08 22:18:07,371 INFO L280 TraceCheckUtils]: 9: Hoare triple {93271#true} ~p2~0 := #t~nondet1; {93271#true} is VALID [2020-07-08 22:18:07,372 INFO L280 TraceCheckUtils]: 10: Hoare triple {93271#true} havoc #t~nondet1; {93271#true} is VALID [2020-07-08 22:18:07,372 INFO L280 TraceCheckUtils]: 11: Hoare triple {93271#true} havoc ~lk2~0; {93271#true} is VALID [2020-07-08 22:18:07,372 INFO L280 TraceCheckUtils]: 12: Hoare triple {93271#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {93271#true} is VALID [2020-07-08 22:18:07,372 INFO L280 TraceCheckUtils]: 13: Hoare triple {93271#true} ~p3~0 := #t~nondet2; {93271#true} is VALID [2020-07-08 22:18:07,372 INFO L280 TraceCheckUtils]: 14: Hoare triple {93271#true} havoc #t~nondet2; {93271#true} is VALID [2020-07-08 22:18:07,373 INFO L280 TraceCheckUtils]: 15: Hoare triple {93271#true} havoc ~lk3~0; {93271#true} is VALID [2020-07-08 22:18:07,373 INFO L280 TraceCheckUtils]: 16: Hoare triple {93271#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {93271#true} is VALID [2020-07-08 22:18:07,373 INFO L280 TraceCheckUtils]: 17: Hoare triple {93271#true} ~p4~0 := #t~nondet3; {93271#true} is VALID [2020-07-08 22:18:07,373 INFO L280 TraceCheckUtils]: 18: Hoare triple {93271#true} havoc #t~nondet3; {93271#true} is VALID [2020-07-08 22:18:07,373 INFO L280 TraceCheckUtils]: 19: Hoare triple {93271#true} havoc ~lk4~0; {93271#true} is VALID [2020-07-08 22:18:07,373 INFO L280 TraceCheckUtils]: 20: Hoare triple {93271#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {93271#true} is VALID [2020-07-08 22:18:07,374 INFO L280 TraceCheckUtils]: 21: Hoare triple {93271#true} ~p5~0 := #t~nondet4; {93271#true} is VALID [2020-07-08 22:18:07,374 INFO L280 TraceCheckUtils]: 22: Hoare triple {93271#true} havoc #t~nondet4; {93271#true} is VALID [2020-07-08 22:18:07,374 INFO L280 TraceCheckUtils]: 23: Hoare triple {93271#true} havoc ~lk5~0; {93271#true} is VALID [2020-07-08 22:18:07,374 INFO L280 TraceCheckUtils]: 24: Hoare triple {93271#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {93271#true} is VALID [2020-07-08 22:18:07,374 INFO L280 TraceCheckUtils]: 25: Hoare triple {93271#true} ~p6~0 := #t~nondet5; {93271#true} is VALID [2020-07-08 22:18:07,374 INFO L280 TraceCheckUtils]: 26: Hoare triple {93271#true} havoc #t~nondet5; {93271#true} is VALID [2020-07-08 22:18:07,375 INFO L280 TraceCheckUtils]: 27: Hoare triple {93271#true} havoc ~lk6~0; {93271#true} is VALID [2020-07-08 22:18:07,375 INFO L280 TraceCheckUtils]: 28: Hoare triple {93271#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {93271#true} is VALID [2020-07-08 22:18:07,375 INFO L280 TraceCheckUtils]: 29: Hoare triple {93271#true} ~p7~0 := #t~nondet6; {93271#true} is VALID [2020-07-08 22:18:07,375 INFO L280 TraceCheckUtils]: 30: Hoare triple {93271#true} havoc #t~nondet6; {93271#true} is VALID [2020-07-08 22:18:07,375 INFO L280 TraceCheckUtils]: 31: Hoare triple {93271#true} havoc ~lk7~0; {93271#true} is VALID [2020-07-08 22:18:07,376 INFO L280 TraceCheckUtils]: 32: Hoare triple {93271#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {93271#true} is VALID [2020-07-08 22:18:07,376 INFO L280 TraceCheckUtils]: 33: Hoare triple {93271#true} ~p8~0 := #t~nondet7; {93271#true} is VALID [2020-07-08 22:18:07,376 INFO L280 TraceCheckUtils]: 34: Hoare triple {93271#true} havoc #t~nondet7; {93271#true} is VALID [2020-07-08 22:18:07,376 INFO L280 TraceCheckUtils]: 35: Hoare triple {93271#true} havoc ~lk8~0; {93271#true} is VALID [2020-07-08 22:18:07,376 INFO L280 TraceCheckUtils]: 36: Hoare triple {93271#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {93271#true} is VALID [2020-07-08 22:18:07,376 INFO L280 TraceCheckUtils]: 37: Hoare triple {93271#true} ~p9~0 := #t~nondet8; {93271#true} is VALID [2020-07-08 22:18:07,377 INFO L280 TraceCheckUtils]: 38: Hoare triple {93271#true} havoc #t~nondet8; {93271#true} is VALID [2020-07-08 22:18:07,377 INFO L280 TraceCheckUtils]: 39: Hoare triple {93271#true} havoc ~lk9~0; {93271#true} is VALID [2020-07-08 22:18:07,377 INFO L280 TraceCheckUtils]: 40: Hoare triple {93271#true} havoc ~cond~0; {93271#true} is VALID [2020-07-08 22:18:07,377 INFO L280 TraceCheckUtils]: 41: Hoare triple {93271#true} assume !false; {93271#true} is VALID [2020-07-08 22:18:07,377 INFO L280 TraceCheckUtils]: 42: Hoare triple {93271#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {93271#true} is VALID [2020-07-08 22:18:07,377 INFO L280 TraceCheckUtils]: 43: Hoare triple {93271#true} ~cond~0 := #t~nondet9; {93271#true} is VALID [2020-07-08 22:18:07,378 INFO L280 TraceCheckUtils]: 44: Hoare triple {93271#true} havoc #t~nondet9; {93271#true} is VALID [2020-07-08 22:18:07,378 INFO L280 TraceCheckUtils]: 45: Hoare triple {93271#true} assume !(0 == ~cond~0); {93271#true} is VALID [2020-07-08 22:18:07,378 INFO L280 TraceCheckUtils]: 46: Hoare triple {93271#true} ~lk1~0 := 0; {93271#true} is VALID [2020-07-08 22:18:07,378 INFO L280 TraceCheckUtils]: 47: Hoare triple {93271#true} ~lk2~0 := 0; {93271#true} is VALID [2020-07-08 22:18:07,378 INFO L280 TraceCheckUtils]: 48: Hoare triple {93271#true} ~lk3~0 := 0; {93271#true} is VALID [2020-07-08 22:18:07,378 INFO L280 TraceCheckUtils]: 49: Hoare triple {93271#true} ~lk4~0 := 0; {93271#true} is VALID [2020-07-08 22:18:07,379 INFO L280 TraceCheckUtils]: 50: Hoare triple {93271#true} ~lk5~0 := 0; {93271#true} is VALID [2020-07-08 22:18:07,379 INFO L280 TraceCheckUtils]: 51: Hoare triple {93271#true} ~lk6~0 := 0; {93271#true} is VALID [2020-07-08 22:18:07,379 INFO L280 TraceCheckUtils]: 52: Hoare triple {93271#true} ~lk7~0 := 0; {93271#true} is VALID [2020-07-08 22:18:07,379 INFO L280 TraceCheckUtils]: 53: Hoare triple {93271#true} ~lk8~0 := 0; {93271#true} is VALID [2020-07-08 22:18:07,379 INFO L280 TraceCheckUtils]: 54: Hoare triple {93271#true} ~lk9~0 := 0; {93271#true} is VALID [2020-07-08 22:18:07,380 INFO L280 TraceCheckUtils]: 55: Hoare triple {93271#true} assume !(0 != ~p1~0); {93271#true} is VALID [2020-07-08 22:18:07,380 INFO L280 TraceCheckUtils]: 56: Hoare triple {93271#true} assume !(0 != ~p2~0); {93271#true} is VALID [2020-07-08 22:18:07,380 INFO L280 TraceCheckUtils]: 57: Hoare triple {93271#true} assume !(0 != ~p3~0); {93271#true} is VALID [2020-07-08 22:18:07,380 INFO L280 TraceCheckUtils]: 58: Hoare triple {93271#true} assume !(0 != ~p4~0); {93271#true} is VALID [2020-07-08 22:18:07,380 INFO L280 TraceCheckUtils]: 59: Hoare triple {93271#true} assume !(0 != ~p5~0); {93271#true} is VALID [2020-07-08 22:18:07,380 INFO L280 TraceCheckUtils]: 60: Hoare triple {93271#true} assume !(0 != ~p6~0); {93271#true} is VALID [2020-07-08 22:18:07,381 INFO L280 TraceCheckUtils]: 61: Hoare triple {93271#true} assume !(0 != ~p7~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-08 22:18:07,382 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 22:18:07,382 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 22:18:07,383 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 22:18:07,383 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 22:18:07,384 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 22:18:07,384 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 22:18:07,385 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 22:18:07,385 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 22:18:07,386 INFO L280 TraceCheckUtils]: 70: Hoare triple {93275#(= 0 main_~p7~0)} assume 0 != ~p7~0; {93272#false} is VALID [2020-07-08 22:18:07,386 INFO L280 TraceCheckUtils]: 71: Hoare triple {93272#false} assume 1 != ~lk7~0; {93272#false} is VALID [2020-07-08 22:18:07,386 INFO L280 TraceCheckUtils]: 72: Hoare triple {93272#false} assume !false; {93272#false} is VALID [2020-07-08 22:18:07,389 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 22:18:07,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199105675] [2020-07-08 22:18:07,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:18:07,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:18:07,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374274083] [2020-07-08 22:18:07,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-08 22:18:07,391 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:18:07,391 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:18:07,457 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 22:18:07,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:18:07,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:18:07,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:18:07,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:18:07,458 INFO L87 Difference]: Start difference. First operand 3243 states and 4202 transitions. Second operand 3 states. [2020-07-08 22:18:29,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:18:29,392 INFO L93 Difference]: Finished difference Result 9455 states and 12268 transitions. [2020-07-08 22:18:29,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:18:29,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-08 22:18:29,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:18:29,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:18:29,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-08 22:18:29,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:18:29,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-08 22:18:29,395 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 280 transitions. [2020-07-08 22:18:29,654 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 22:18:31,060 INFO L225 Difference]: With dead ends: 9455 [2020-07-08 22:18:31,060 INFO L226 Difference]: Without dead ends: 6253 [2020-07-08 22:18:31,066 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 22:18:31,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6253 states. [2020-07-08 22:18:49,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6253 to 6251. [2020-07-08 22:18:49,265 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:18:49,265 INFO L82 GeneralOperation]: Start isEquivalent. First operand 6253 states. Second operand 6251 states. [2020-07-08 22:18:49,265 INFO L74 IsIncluded]: Start isIncluded. First operand 6253 states. Second operand 6251 states. [2020-07-08 22:18:49,265 INFO L87 Difference]: Start difference. First operand 6253 states. Second operand 6251 states. [2020-07-08 22:18:50,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:18:50,488 INFO L93 Difference]: Finished difference Result 6253 states and 7979 transitions. [2020-07-08 22:18:50,488 INFO L276 IsEmpty]: Start isEmpty. Operand 6253 states and 7979 transitions. [2020-07-08 22:18:50,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:18:50,494 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:18:50,494 INFO L74 IsIncluded]: Start isIncluded. First operand 6251 states. Second operand 6253 states. [2020-07-08 22:18:50,495 INFO L87 Difference]: Start difference. First operand 6251 states. Second operand 6253 states. [2020-07-08 22:18:51,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:18:51,703 INFO L93 Difference]: Finished difference Result 6253 states and 7979 transitions. [2020-07-08 22:18:51,703 INFO L276 IsEmpty]: Start isEmpty. Operand 6253 states and 7979 transitions. [2020-07-08 22:18:51,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:18:51,710 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:18:51,710 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:18:51,710 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:18:51,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6251 states. [2020-07-08 22:18:53,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6251 states to 6251 states and 7978 transitions. [2020-07-08 22:18:53,007 INFO L78 Accepts]: Start accepts. Automaton has 6251 states and 7978 transitions. Word has length 73 [2020-07-08 22:18:53,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:18:53,007 INFO L479 AbstractCegarLoop]: Abstraction has 6251 states and 7978 transitions. [2020-07-08 22:18:53,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:18:53,007 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6251 states and 7978 transitions. [2020-07-08 22:19:03,396 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 22:19:03,396 INFO L276 IsEmpty]: Start isEmpty. Operand 6251 states and 7978 transitions. [2020-07-08 22:19:03,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-08 22:19:03,400 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:19:03,400 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 22:19:03,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-08 22:19:03,400 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:19:03,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:19:03,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1012461522, now seen corresponding path program 1 times [2020-07-08 22:19:03,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:19:03,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645879764] [2020-07-08 22:19:03,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:19:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:19:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:19:03,435 INFO L280 TraceCheckUtils]: 0: Hoare triple {137196#true} assume true; {137196#true} is VALID [2020-07-08 22:19:03,435 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {137196#true} {137196#true} #247#return; {137196#true} is VALID [2020-07-08 22:19:03,435 INFO L263 TraceCheckUtils]: 0: Hoare triple {137196#true} call ULTIMATE.init(); {137196#true} is VALID [2020-07-08 22:19:03,436 INFO L280 TraceCheckUtils]: 1: Hoare triple {137196#true} assume true; {137196#true} is VALID [2020-07-08 22:19:03,436 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {137196#true} {137196#true} #247#return; {137196#true} is VALID [2020-07-08 22:19:03,436 INFO L263 TraceCheckUtils]: 3: Hoare triple {137196#true} call #t~ret10 := main(); {137196#true} is VALID [2020-07-08 22:19:03,436 INFO L280 TraceCheckUtils]: 4: Hoare triple {137196#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {137196#true} is VALID [2020-07-08 22:19:03,436 INFO L280 TraceCheckUtils]: 5: Hoare triple {137196#true} ~p1~0 := #t~nondet0; {137196#true} is VALID [2020-07-08 22:19:03,437 INFO L280 TraceCheckUtils]: 6: Hoare triple {137196#true} havoc #t~nondet0; {137196#true} is VALID [2020-07-08 22:19:03,437 INFO L280 TraceCheckUtils]: 7: Hoare triple {137196#true} havoc ~lk1~0; {137196#true} is VALID [2020-07-08 22:19:03,437 INFO L280 TraceCheckUtils]: 8: Hoare triple {137196#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {137196#true} is VALID [2020-07-08 22:19:03,437 INFO L280 TraceCheckUtils]: 9: Hoare triple {137196#true} ~p2~0 := #t~nondet1; {137196#true} is VALID [2020-07-08 22:19:03,437 INFO L280 TraceCheckUtils]: 10: Hoare triple {137196#true} havoc #t~nondet1; {137196#true} is VALID [2020-07-08 22:19:03,437 INFO L280 TraceCheckUtils]: 11: Hoare triple {137196#true} havoc ~lk2~0; {137196#true} is VALID [2020-07-08 22:19:03,438 INFO L280 TraceCheckUtils]: 12: Hoare triple {137196#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {137196#true} is VALID [2020-07-08 22:19:03,438 INFO L280 TraceCheckUtils]: 13: Hoare triple {137196#true} ~p3~0 := #t~nondet2; {137196#true} is VALID [2020-07-08 22:19:03,438 INFO L280 TraceCheckUtils]: 14: Hoare triple {137196#true} havoc #t~nondet2; {137196#true} is VALID [2020-07-08 22:19:03,438 INFO L280 TraceCheckUtils]: 15: Hoare triple {137196#true} havoc ~lk3~0; {137196#true} is VALID [2020-07-08 22:19:03,438 INFO L280 TraceCheckUtils]: 16: Hoare triple {137196#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {137196#true} is VALID [2020-07-08 22:19:03,439 INFO L280 TraceCheckUtils]: 17: Hoare triple {137196#true} ~p4~0 := #t~nondet3; {137196#true} is VALID [2020-07-08 22:19:03,439 INFO L280 TraceCheckUtils]: 18: Hoare triple {137196#true} havoc #t~nondet3; {137196#true} is VALID [2020-07-08 22:19:03,439 INFO L280 TraceCheckUtils]: 19: Hoare triple {137196#true} havoc ~lk4~0; {137196#true} is VALID [2020-07-08 22:19:03,439 INFO L280 TraceCheckUtils]: 20: Hoare triple {137196#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {137196#true} is VALID [2020-07-08 22:19:03,439 INFO L280 TraceCheckUtils]: 21: Hoare triple {137196#true} ~p5~0 := #t~nondet4; {137196#true} is VALID [2020-07-08 22:19:03,440 INFO L280 TraceCheckUtils]: 22: Hoare triple {137196#true} havoc #t~nondet4; {137196#true} is VALID [2020-07-08 22:19:03,440 INFO L280 TraceCheckUtils]: 23: Hoare triple {137196#true} havoc ~lk5~0; {137196#true} is VALID [2020-07-08 22:19:03,440 INFO L280 TraceCheckUtils]: 24: Hoare triple {137196#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {137196#true} is VALID [2020-07-08 22:19:03,440 INFO L280 TraceCheckUtils]: 25: Hoare triple {137196#true} ~p6~0 := #t~nondet5; {137196#true} is VALID [2020-07-08 22:19:03,440 INFO L280 TraceCheckUtils]: 26: Hoare triple {137196#true} havoc #t~nondet5; {137196#true} is VALID [2020-07-08 22:19:03,440 INFO L280 TraceCheckUtils]: 27: Hoare triple {137196#true} havoc ~lk6~0; {137196#true} is VALID [2020-07-08 22:19:03,441 INFO L280 TraceCheckUtils]: 28: Hoare triple {137196#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {137196#true} is VALID [2020-07-08 22:19:03,441 INFO L280 TraceCheckUtils]: 29: Hoare triple {137196#true} ~p7~0 := #t~nondet6; {137196#true} is VALID [2020-07-08 22:19:03,441 INFO L280 TraceCheckUtils]: 30: Hoare triple {137196#true} havoc #t~nondet6; {137196#true} is VALID [2020-07-08 22:19:03,441 INFO L280 TraceCheckUtils]: 31: Hoare triple {137196#true} havoc ~lk7~0; {137196#true} is VALID [2020-07-08 22:19:03,441 INFO L280 TraceCheckUtils]: 32: Hoare triple {137196#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {137196#true} is VALID [2020-07-08 22:19:03,442 INFO L280 TraceCheckUtils]: 33: Hoare triple {137196#true} ~p8~0 := #t~nondet7; {137196#true} is VALID [2020-07-08 22:19:03,442 INFO L280 TraceCheckUtils]: 34: Hoare triple {137196#true} havoc #t~nondet7; {137196#true} is VALID [2020-07-08 22:19:03,442 INFO L280 TraceCheckUtils]: 35: Hoare triple {137196#true} havoc ~lk8~0; {137196#true} is VALID [2020-07-08 22:19:03,442 INFO L280 TraceCheckUtils]: 36: Hoare triple {137196#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {137196#true} is VALID [2020-07-08 22:19:03,442 INFO L280 TraceCheckUtils]: 37: Hoare triple {137196#true} ~p9~0 := #t~nondet8; {137196#true} is VALID [2020-07-08 22:19:03,443 INFO L280 TraceCheckUtils]: 38: Hoare triple {137196#true} havoc #t~nondet8; {137196#true} is VALID [2020-07-08 22:19:03,443 INFO L280 TraceCheckUtils]: 39: Hoare triple {137196#true} havoc ~lk9~0; {137196#true} is VALID [2020-07-08 22:19:03,443 INFO L280 TraceCheckUtils]: 40: Hoare triple {137196#true} havoc ~cond~0; {137196#true} is VALID [2020-07-08 22:19:03,443 INFO L280 TraceCheckUtils]: 41: Hoare triple {137196#true} assume !false; {137196#true} is VALID [2020-07-08 22:19:03,443 INFO L280 TraceCheckUtils]: 42: Hoare triple {137196#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {137196#true} is VALID [2020-07-08 22:19:03,443 INFO L280 TraceCheckUtils]: 43: Hoare triple {137196#true} ~cond~0 := #t~nondet9; {137196#true} is VALID [2020-07-08 22:19:03,444 INFO L280 TraceCheckUtils]: 44: Hoare triple {137196#true} havoc #t~nondet9; {137196#true} is VALID [2020-07-08 22:19:03,444 INFO L280 TraceCheckUtils]: 45: Hoare triple {137196#true} assume !(0 == ~cond~0); {137196#true} is VALID [2020-07-08 22:19:03,444 INFO L280 TraceCheckUtils]: 46: Hoare triple {137196#true} ~lk1~0 := 0; {137196#true} is VALID [2020-07-08 22:19:03,444 INFO L280 TraceCheckUtils]: 47: Hoare triple {137196#true} ~lk2~0 := 0; {137196#true} is VALID [2020-07-08 22:19:03,444 INFO L280 TraceCheckUtils]: 48: Hoare triple {137196#true} ~lk3~0 := 0; {137196#true} is VALID [2020-07-08 22:19:03,445 INFO L280 TraceCheckUtils]: 49: Hoare triple {137196#true} ~lk4~0 := 0; {137196#true} is VALID [2020-07-08 22:19:03,445 INFO L280 TraceCheckUtils]: 50: Hoare triple {137196#true} ~lk5~0 := 0; {137196#true} is VALID [2020-07-08 22:19:03,445 INFO L280 TraceCheckUtils]: 51: Hoare triple {137196#true} ~lk6~0 := 0; {137196#true} is VALID [2020-07-08 22:19:03,445 INFO L280 TraceCheckUtils]: 52: Hoare triple {137196#true} ~lk7~0 := 0; {137196#true} is VALID [2020-07-08 22:19:03,445 INFO L280 TraceCheckUtils]: 53: Hoare triple {137196#true} ~lk8~0 := 0; {137196#true} is VALID [2020-07-08 22:19:03,446 INFO L280 TraceCheckUtils]: 54: Hoare triple {137196#true} ~lk9~0 := 0; {137196#true} is VALID [2020-07-08 22:19:03,446 INFO L280 TraceCheckUtils]: 55: Hoare triple {137196#true} assume !(0 != ~p1~0); {137196#true} is VALID [2020-07-08 22:19:03,446 INFO L280 TraceCheckUtils]: 56: Hoare triple {137196#true} assume !(0 != ~p2~0); {137196#true} is VALID [2020-07-08 22:19:03,446 INFO L280 TraceCheckUtils]: 57: Hoare triple {137196#true} assume !(0 != ~p3~0); {137196#true} is VALID [2020-07-08 22:19:03,446 INFO L280 TraceCheckUtils]: 58: Hoare triple {137196#true} assume !(0 != ~p4~0); {137196#true} is VALID [2020-07-08 22:19:03,446 INFO L280 TraceCheckUtils]: 59: Hoare triple {137196#true} assume !(0 != ~p5~0); {137196#true} is VALID [2020-07-08 22:19:03,447 INFO L280 TraceCheckUtils]: 60: Hoare triple {137196#true} assume !(0 != ~p6~0); {137196#true} is VALID [2020-07-08 22:19:03,447 INFO L280 TraceCheckUtils]: 61: Hoare triple {137196#true} assume !(0 != ~p7~0); {137196#true} is VALID [2020-07-08 22:19:03,448 INFO L280 TraceCheckUtils]: 62: Hoare triple {137196#true} assume !(0 != ~p8~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-08 22:19:03,448 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 22:19:03,453 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 22:19:03,454 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 22:19:03,457 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 22:19:03,458 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 22:19:03,462 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 22:19:03,471 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 22:19:03,471 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 22:19:03,472 INFO L280 TraceCheckUtils]: 71: Hoare triple {137200#(= 0 main_~p8~0)} assume 0 != ~p8~0; {137197#false} is VALID [2020-07-08 22:19:03,472 INFO L280 TraceCheckUtils]: 72: Hoare triple {137197#false} assume 1 != ~lk8~0; {137197#false} is VALID [2020-07-08 22:19:03,472 INFO L280 TraceCheckUtils]: 73: Hoare triple {137197#false} assume !false; {137197#false} is VALID [2020-07-08 22:19:03,476 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 22:19:03,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645879764] [2020-07-08 22:19:03,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:19:03,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:19:03,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292110258] [2020-07-08 22:19:03,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-08 22:19:03,477 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:19:03,477 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:19:03,549 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 22:19:03,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:19:03,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:19:03,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:19:03,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:19:03,551 INFO L87 Difference]: Start difference. First operand 6251 states and 7978 transitions. Second operand 3 states. [2020-07-08 22:20:12,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:20:12,404 INFO L93 Difference]: Finished difference Result 18287 states and 23340 transitions. [2020-07-08 22:20:12,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:20:12,404 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-08 22:20:12,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:20:12,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:20:12,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-08 22:20:12,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:20:12,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-08 22:20:12,407 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 280 transitions. [2020-07-08 22:20:12,665 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 22:20:18,568 INFO L225 Difference]: With dead ends: 18287 [2020-07-08 22:20:18,568 INFO L226 Difference]: Without dead ends: 12077 [2020-07-08 22:20:18,581 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 22:20:18,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12077 states. [2020-07-08 22:20:58,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12077 to 12075. [2020-07-08 22:20:58,045 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:20:58,046 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12077 states. Second operand 12075 states. [2020-07-08 22:20:58,046 INFO L74 IsIncluded]: Start isIncluded. First operand 12077 states. Second operand 12075 states. [2020-07-08 22:20:58,046 INFO L87 Difference]: Start difference. First operand 12077 states. Second operand 12075 states. [2020-07-08 22:21:02,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:21:02,615 INFO L93 Difference]: Finished difference Result 12077 states and 15147 transitions. [2020-07-08 22:21:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 12077 states and 15147 transitions. [2020-07-08 22:21:02,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:21:02,628 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:21:02,628 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 12077 states. [2020-07-08 22:21:02,628 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 12077 states. [2020-07-08 22:21:08,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:21:08,049 INFO L93 Difference]: Finished difference Result 12077 states and 15147 transitions. [2020-07-08 22:21:08,050 INFO L276 IsEmpty]: Start isEmpty. Operand 12077 states and 15147 transitions. [2020-07-08 22:21:08,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:21:08,058 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:21:08,058 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:21:08,059 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:21:08,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-08 22:21:16,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 15146 transitions. [2020-07-08 22:21:16,966 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 15146 transitions. Word has length 74 [2020-07-08 22:21:16,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:21:16,967 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 15146 transitions. [2020-07-08 22:21:16,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:21:16,967 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 15146 transitions. [2020-07-08 22:21:38,419 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 22:21:38,420 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 15146 transitions. [2020-07-08 22:21:38,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-08 22:21:38,424 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:21:38,424 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 22:21:38,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-08 22:21:38,424 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:21:38,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:21:38,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1143464253, now seen corresponding path program 1 times [2020-07-08 22:21:38,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:21:38,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529689732] [2020-07-08 22:21:38,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:21:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:21:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:21:38,461 INFO L280 TraceCheckUtils]: 0: Hoare triple {222081#true} assume true; {222081#true} is VALID [2020-07-08 22:21:38,461 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {222081#true} {222081#true} #247#return; {222081#true} is VALID [2020-07-08 22:21:38,461 INFO L263 TraceCheckUtils]: 0: Hoare triple {222081#true} call ULTIMATE.init(); {222081#true} is VALID [2020-07-08 22:21:38,462 INFO L280 TraceCheckUtils]: 1: Hoare triple {222081#true} assume true; {222081#true} is VALID [2020-07-08 22:21:38,462 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {222081#true} {222081#true} #247#return; {222081#true} is VALID [2020-07-08 22:21:38,462 INFO L263 TraceCheckUtils]: 3: Hoare triple {222081#true} call #t~ret10 := main(); {222081#true} is VALID [2020-07-08 22:21:38,462 INFO L280 TraceCheckUtils]: 4: Hoare triple {222081#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {222081#true} is VALID [2020-07-08 22:21:38,462 INFO L280 TraceCheckUtils]: 5: Hoare triple {222081#true} ~p1~0 := #t~nondet0; {222081#true} is VALID [2020-07-08 22:21:38,463 INFO L280 TraceCheckUtils]: 6: Hoare triple {222081#true} havoc #t~nondet0; {222081#true} is VALID [2020-07-08 22:21:38,463 INFO L280 TraceCheckUtils]: 7: Hoare triple {222081#true} havoc ~lk1~0; {222081#true} is VALID [2020-07-08 22:21:38,463 INFO L280 TraceCheckUtils]: 8: Hoare triple {222081#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {222081#true} is VALID [2020-07-08 22:21:38,463 INFO L280 TraceCheckUtils]: 9: Hoare triple {222081#true} ~p2~0 := #t~nondet1; {222081#true} is VALID [2020-07-08 22:21:38,463 INFO L280 TraceCheckUtils]: 10: Hoare triple {222081#true} havoc #t~nondet1; {222081#true} is VALID [2020-07-08 22:21:38,463 INFO L280 TraceCheckUtils]: 11: Hoare triple {222081#true} havoc ~lk2~0; {222081#true} is VALID [2020-07-08 22:21:38,464 INFO L280 TraceCheckUtils]: 12: Hoare triple {222081#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {222081#true} is VALID [2020-07-08 22:21:38,464 INFO L280 TraceCheckUtils]: 13: Hoare triple {222081#true} ~p3~0 := #t~nondet2; {222081#true} is VALID [2020-07-08 22:21:38,464 INFO L280 TraceCheckUtils]: 14: Hoare triple {222081#true} havoc #t~nondet2; {222081#true} is VALID [2020-07-08 22:21:38,464 INFO L280 TraceCheckUtils]: 15: Hoare triple {222081#true} havoc ~lk3~0; {222081#true} is VALID [2020-07-08 22:21:38,464 INFO L280 TraceCheckUtils]: 16: Hoare triple {222081#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {222081#true} is VALID [2020-07-08 22:21:38,464 INFO L280 TraceCheckUtils]: 17: Hoare triple {222081#true} ~p4~0 := #t~nondet3; {222081#true} is VALID [2020-07-08 22:21:38,465 INFO L280 TraceCheckUtils]: 18: Hoare triple {222081#true} havoc #t~nondet3; {222081#true} is VALID [2020-07-08 22:21:38,465 INFO L280 TraceCheckUtils]: 19: Hoare triple {222081#true} havoc ~lk4~0; {222081#true} is VALID [2020-07-08 22:21:38,465 INFO L280 TraceCheckUtils]: 20: Hoare triple {222081#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {222081#true} is VALID [2020-07-08 22:21:38,465 INFO L280 TraceCheckUtils]: 21: Hoare triple {222081#true} ~p5~0 := #t~nondet4; {222081#true} is VALID [2020-07-08 22:21:38,466 INFO L280 TraceCheckUtils]: 22: Hoare triple {222081#true} havoc #t~nondet4; {222081#true} is VALID [2020-07-08 22:21:38,466 INFO L280 TraceCheckUtils]: 23: Hoare triple {222081#true} havoc ~lk5~0; {222081#true} is VALID [2020-07-08 22:21:38,466 INFO L280 TraceCheckUtils]: 24: Hoare triple {222081#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {222081#true} is VALID [2020-07-08 22:21:38,466 INFO L280 TraceCheckUtils]: 25: Hoare triple {222081#true} ~p6~0 := #t~nondet5; {222081#true} is VALID [2020-07-08 22:21:38,467 INFO L280 TraceCheckUtils]: 26: Hoare triple {222081#true} havoc #t~nondet5; {222081#true} is VALID [2020-07-08 22:21:38,467 INFO L280 TraceCheckUtils]: 27: Hoare triple {222081#true} havoc ~lk6~0; {222081#true} is VALID [2020-07-08 22:21:38,467 INFO L280 TraceCheckUtils]: 28: Hoare triple {222081#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {222081#true} is VALID [2020-07-08 22:21:38,467 INFO L280 TraceCheckUtils]: 29: Hoare triple {222081#true} ~p7~0 := #t~nondet6; {222081#true} is VALID [2020-07-08 22:21:38,467 INFO L280 TraceCheckUtils]: 30: Hoare triple {222081#true} havoc #t~nondet6; {222081#true} is VALID [2020-07-08 22:21:38,468 INFO L280 TraceCheckUtils]: 31: Hoare triple {222081#true} havoc ~lk7~0; {222081#true} is VALID [2020-07-08 22:21:38,468 INFO L280 TraceCheckUtils]: 32: Hoare triple {222081#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {222081#true} is VALID [2020-07-08 22:21:38,468 INFO L280 TraceCheckUtils]: 33: Hoare triple {222081#true} ~p8~0 := #t~nondet7; {222081#true} is VALID [2020-07-08 22:21:38,468 INFO L280 TraceCheckUtils]: 34: Hoare triple {222081#true} havoc #t~nondet7; {222081#true} is VALID [2020-07-08 22:21:38,469 INFO L280 TraceCheckUtils]: 35: Hoare triple {222081#true} havoc ~lk8~0; {222081#true} is VALID [2020-07-08 22:21:38,469 INFO L280 TraceCheckUtils]: 36: Hoare triple {222081#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {222081#true} is VALID [2020-07-08 22:21:38,469 INFO L280 TraceCheckUtils]: 37: Hoare triple {222081#true} ~p9~0 := #t~nondet8; {222081#true} is VALID [2020-07-08 22:21:38,469 INFO L280 TraceCheckUtils]: 38: Hoare triple {222081#true} havoc #t~nondet8; {222081#true} is VALID [2020-07-08 22:21:38,470 INFO L280 TraceCheckUtils]: 39: Hoare triple {222081#true} havoc ~lk9~0; {222081#true} is VALID [2020-07-08 22:21:38,470 INFO L280 TraceCheckUtils]: 40: Hoare triple {222081#true} havoc ~cond~0; {222081#true} is VALID [2020-07-08 22:21:38,470 INFO L280 TraceCheckUtils]: 41: Hoare triple {222081#true} assume !false; {222081#true} is VALID [2020-07-08 22:21:38,470 INFO L280 TraceCheckUtils]: 42: Hoare triple {222081#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {222081#true} is VALID [2020-07-08 22:21:38,471 INFO L280 TraceCheckUtils]: 43: Hoare triple {222081#true} ~cond~0 := #t~nondet9; {222081#true} is VALID [2020-07-08 22:21:38,471 INFO L280 TraceCheckUtils]: 44: Hoare triple {222081#true} havoc #t~nondet9; {222081#true} is VALID [2020-07-08 22:21:38,471 INFO L280 TraceCheckUtils]: 45: Hoare triple {222081#true} assume !(0 == ~cond~0); {222081#true} is VALID [2020-07-08 22:21:38,471 INFO L280 TraceCheckUtils]: 46: Hoare triple {222081#true} ~lk1~0 := 0; {222081#true} is VALID [2020-07-08 22:21:38,472 INFO L280 TraceCheckUtils]: 47: Hoare triple {222081#true} ~lk2~0 := 0; {222081#true} is VALID [2020-07-08 22:21:38,472 INFO L280 TraceCheckUtils]: 48: Hoare triple {222081#true} ~lk3~0 := 0; {222081#true} is VALID [2020-07-08 22:21:38,472 INFO L280 TraceCheckUtils]: 49: Hoare triple {222081#true} ~lk4~0 := 0; {222081#true} is VALID [2020-07-08 22:21:38,472 INFO L280 TraceCheckUtils]: 50: Hoare triple {222081#true} ~lk5~0 := 0; {222081#true} is VALID [2020-07-08 22:21:38,473 INFO L280 TraceCheckUtils]: 51: Hoare triple {222081#true} ~lk6~0 := 0; {222081#true} is VALID [2020-07-08 22:21:38,473 INFO L280 TraceCheckUtils]: 52: Hoare triple {222081#true} ~lk7~0 := 0; {222081#true} is VALID [2020-07-08 22:21:38,473 INFO L280 TraceCheckUtils]: 53: Hoare triple {222081#true} ~lk8~0 := 0; {222081#true} is VALID [2020-07-08 22:21:38,473 INFO L280 TraceCheckUtils]: 54: Hoare triple {222081#true} ~lk9~0 := 0; {222081#true} is VALID [2020-07-08 22:21:38,473 INFO L280 TraceCheckUtils]: 55: Hoare triple {222081#true} assume !(0 != ~p1~0); {222081#true} is VALID [2020-07-08 22:21:38,474 INFO L280 TraceCheckUtils]: 56: Hoare triple {222081#true} assume !(0 != ~p2~0); {222081#true} is VALID [2020-07-08 22:21:38,474 INFO L280 TraceCheckUtils]: 57: Hoare triple {222081#true} assume !(0 != ~p3~0); {222081#true} is VALID [2020-07-08 22:21:38,474 INFO L280 TraceCheckUtils]: 58: Hoare triple {222081#true} assume !(0 != ~p4~0); {222081#true} is VALID [2020-07-08 22:21:38,474 INFO L280 TraceCheckUtils]: 59: Hoare triple {222081#true} assume !(0 != ~p5~0); {222081#true} is VALID [2020-07-08 22:21:38,475 INFO L280 TraceCheckUtils]: 60: Hoare triple {222081#true} assume !(0 != ~p6~0); {222081#true} is VALID [2020-07-08 22:21:38,475 INFO L280 TraceCheckUtils]: 61: Hoare triple {222081#true} assume 0 != ~p7~0; {222081#true} is VALID [2020-07-08 22:21:38,476 INFO L280 TraceCheckUtils]: 62: Hoare triple {222081#true} ~lk7~0 := 1; {222085#(= main_~lk7~0 1)} is VALID [2020-07-08 22:21:38,476 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 22:21:38,477 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 22:21:38,477 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 22:21:38,478 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 22:21:38,478 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 22:21:38,479 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 22:21:38,479 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 22:21:38,480 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 22:21:38,480 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 22:21:38,481 INFO L280 TraceCheckUtils]: 72: Hoare triple {222085#(= main_~lk7~0 1)} assume 1 != ~lk7~0; {222082#false} is VALID [2020-07-08 22:21:38,481 INFO L280 TraceCheckUtils]: 73: Hoare triple {222082#false} assume !false; {222082#false} is VALID [2020-07-08 22:21:38,485 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 22:21:38,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529689732] [2020-07-08 22:21:38,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:21:38,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:21:38,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397763543] [2020-07-08 22:21:38,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-08 22:21:38,488 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:21:38,488 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:21:38,573 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 22:21:38,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:21:38,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:21:38,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:21:38,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:21:38,575 INFO L87 Difference]: Start difference. First operand 12075 states and 15146 transitions. Second operand 3 states. [2020-07-08 22:22:39,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:22:39,228 INFO L93 Difference]: Finished difference Result 14255 states and 17708 transitions. [2020-07-08 22:22:39,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:22:39,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-08 22:22:39,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:22:39,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:22:39,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2020-07-08 22:22:39,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:22:39,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2020-07-08 22:22:39,231 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 177 transitions. [2020-07-08 22:22:39,389 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 22:22:49,122 INFO L225 Difference]: With dead ends: 14255 [2020-07-08 22:22:49,122 INFO L226 Difference]: Without dead ends: 14253 [2020-07-08 22:22:49,125 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 22:22:49,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14253 states. [2020-07-08 22:23:32,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14253 to 12075. [2020-07-08 22:23:32,881 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:23:32,881 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14253 states. Second operand 12075 states. [2020-07-08 22:23:32,881 INFO L74 IsIncluded]: Start isIncluded. First operand 14253 states. Second operand 12075 states. [2020-07-08 22:23:32,881 INFO L87 Difference]: Start difference. First operand 14253 states. Second operand 12075 states. [2020-07-08 22:23:40,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:23:40,684 INFO L93 Difference]: Finished difference Result 14253 states and 17579 transitions. [2020-07-08 22:23:40,684 INFO L276 IsEmpty]: Start isEmpty. Operand 14253 states and 17579 transitions. [2020-07-08 22:23:40,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:23:40,693 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:23:40,693 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 14253 states. [2020-07-08 22:23:40,693 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 14253 states. [2020-07-08 22:23:47,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:23:47,546 INFO L93 Difference]: Finished difference Result 14253 states and 17579 transitions. [2020-07-08 22:23:47,546 INFO L276 IsEmpty]: Start isEmpty. Operand 14253 states and 17579 transitions. [2020-07-08 22:23:47,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:23:47,558 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:23:47,558 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:23:47,558 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:23:47,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-08 22:23:53,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 15018 transitions. [2020-07-08 22:23:53,235 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 15018 transitions. Word has length 74 [2020-07-08 22:23:53,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:23:53,236 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 15018 transitions. [2020-07-08 22:23:53,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:23:53,236 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 15018 transitions. [2020-07-08 22:24:14,270 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 22:24:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 15018 transitions. [2020-07-08 22:24:14,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-08 22:24:14,275 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:24:14,275 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 22:24:14,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-08 22:24:14,275 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:24:14,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:24:14,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1847607922, now seen corresponding path program 1 times [2020-07-08 22:24:14,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:24:14,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302684496] [2020-07-08 22:24:14,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:24:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:14,325 INFO L280 TraceCheckUtils]: 0: Hoare triple {303254#true} assume true; {303254#true} is VALID [2020-07-08 22:24:14,325 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {303254#true} {303254#true} #247#return; {303254#true} is VALID [2020-07-08 22:24:14,325 INFO L263 TraceCheckUtils]: 0: Hoare triple {303254#true} call ULTIMATE.init(); {303254#true} is VALID [2020-07-08 22:24:14,325 INFO L280 TraceCheckUtils]: 1: Hoare triple {303254#true} assume true; {303254#true} is VALID [2020-07-08 22:24:14,325 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {303254#true} {303254#true} #247#return; {303254#true} is VALID [2020-07-08 22:24:14,325 INFO L263 TraceCheckUtils]: 3: Hoare triple {303254#true} call #t~ret10 := main(); {303254#true} is VALID [2020-07-08 22:24:14,326 INFO L280 TraceCheckUtils]: 4: Hoare triple {303254#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {303254#true} is VALID [2020-07-08 22:24:14,326 INFO L280 TraceCheckUtils]: 5: Hoare triple {303254#true} ~p1~0 := #t~nondet0; {303254#true} is VALID [2020-07-08 22:24:14,326 INFO L280 TraceCheckUtils]: 6: Hoare triple {303254#true} havoc #t~nondet0; {303254#true} is VALID [2020-07-08 22:24:14,326 INFO L280 TraceCheckUtils]: 7: Hoare triple {303254#true} havoc ~lk1~0; {303254#true} is VALID [2020-07-08 22:24:14,326 INFO L280 TraceCheckUtils]: 8: Hoare triple {303254#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {303254#true} is VALID [2020-07-08 22:24:14,326 INFO L280 TraceCheckUtils]: 9: Hoare triple {303254#true} ~p2~0 := #t~nondet1; {303254#true} is VALID [2020-07-08 22:24:14,326 INFO L280 TraceCheckUtils]: 10: Hoare triple {303254#true} havoc #t~nondet1; {303254#true} is VALID [2020-07-08 22:24:14,326 INFO L280 TraceCheckUtils]: 11: Hoare triple {303254#true} havoc ~lk2~0; {303254#true} is VALID [2020-07-08 22:24:14,327 INFO L280 TraceCheckUtils]: 12: Hoare triple {303254#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {303254#true} is VALID [2020-07-08 22:24:14,327 INFO L280 TraceCheckUtils]: 13: Hoare triple {303254#true} ~p3~0 := #t~nondet2; {303254#true} is VALID [2020-07-08 22:24:14,327 INFO L280 TraceCheckUtils]: 14: Hoare triple {303254#true} havoc #t~nondet2; {303254#true} is VALID [2020-07-08 22:24:14,327 INFO L280 TraceCheckUtils]: 15: Hoare triple {303254#true} havoc ~lk3~0; {303254#true} is VALID [2020-07-08 22:24:14,327 INFO L280 TraceCheckUtils]: 16: Hoare triple {303254#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {303254#true} is VALID [2020-07-08 22:24:14,327 INFO L280 TraceCheckUtils]: 17: Hoare triple {303254#true} ~p4~0 := #t~nondet3; {303254#true} is VALID [2020-07-08 22:24:14,327 INFO L280 TraceCheckUtils]: 18: Hoare triple {303254#true} havoc #t~nondet3; {303254#true} is VALID [2020-07-08 22:24:14,328 INFO L280 TraceCheckUtils]: 19: Hoare triple {303254#true} havoc ~lk4~0; {303254#true} is VALID [2020-07-08 22:24:14,328 INFO L280 TraceCheckUtils]: 20: Hoare triple {303254#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {303254#true} is VALID [2020-07-08 22:24:14,328 INFO L280 TraceCheckUtils]: 21: Hoare triple {303254#true} ~p5~0 := #t~nondet4; {303254#true} is VALID [2020-07-08 22:24:14,328 INFO L280 TraceCheckUtils]: 22: Hoare triple {303254#true} havoc #t~nondet4; {303254#true} is VALID [2020-07-08 22:24:14,328 INFO L280 TraceCheckUtils]: 23: Hoare triple {303254#true} havoc ~lk5~0; {303254#true} is VALID [2020-07-08 22:24:14,328 INFO L280 TraceCheckUtils]: 24: Hoare triple {303254#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {303254#true} is VALID [2020-07-08 22:24:14,328 INFO L280 TraceCheckUtils]: 25: Hoare triple {303254#true} ~p6~0 := #t~nondet5; {303254#true} is VALID [2020-07-08 22:24:14,328 INFO L280 TraceCheckUtils]: 26: Hoare triple {303254#true} havoc #t~nondet5; {303254#true} is VALID [2020-07-08 22:24:14,329 INFO L280 TraceCheckUtils]: 27: Hoare triple {303254#true} havoc ~lk6~0; {303254#true} is VALID [2020-07-08 22:24:14,329 INFO L280 TraceCheckUtils]: 28: Hoare triple {303254#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {303254#true} is VALID [2020-07-08 22:24:14,329 INFO L280 TraceCheckUtils]: 29: Hoare triple {303254#true} ~p7~0 := #t~nondet6; {303254#true} is VALID [2020-07-08 22:24:14,329 INFO L280 TraceCheckUtils]: 30: Hoare triple {303254#true} havoc #t~nondet6; {303254#true} is VALID [2020-07-08 22:24:14,329 INFO L280 TraceCheckUtils]: 31: Hoare triple {303254#true} havoc ~lk7~0; {303254#true} is VALID [2020-07-08 22:24:14,329 INFO L280 TraceCheckUtils]: 32: Hoare triple {303254#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {303254#true} is VALID [2020-07-08 22:24:14,329 INFO L280 TraceCheckUtils]: 33: Hoare triple {303254#true} ~p8~0 := #t~nondet7; {303254#true} is VALID [2020-07-08 22:24:14,329 INFO L280 TraceCheckUtils]: 34: Hoare triple {303254#true} havoc #t~nondet7; {303254#true} is VALID [2020-07-08 22:24:14,330 INFO L280 TraceCheckUtils]: 35: Hoare triple {303254#true} havoc ~lk8~0; {303254#true} is VALID [2020-07-08 22:24:14,330 INFO L280 TraceCheckUtils]: 36: Hoare triple {303254#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {303254#true} is VALID [2020-07-08 22:24:14,330 INFO L280 TraceCheckUtils]: 37: Hoare triple {303254#true} ~p9~0 := #t~nondet8; {303254#true} is VALID [2020-07-08 22:24:14,330 INFO L280 TraceCheckUtils]: 38: Hoare triple {303254#true} havoc #t~nondet8; {303254#true} is VALID [2020-07-08 22:24:14,330 INFO L280 TraceCheckUtils]: 39: Hoare triple {303254#true} havoc ~lk9~0; {303254#true} is VALID [2020-07-08 22:24:14,330 INFO L280 TraceCheckUtils]: 40: Hoare triple {303254#true} havoc ~cond~0; {303254#true} is VALID [2020-07-08 22:24:14,330 INFO L280 TraceCheckUtils]: 41: Hoare triple {303254#true} assume !false; {303254#true} is VALID [2020-07-08 22:24:14,330 INFO L280 TraceCheckUtils]: 42: Hoare triple {303254#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {303254#true} is VALID [2020-07-08 22:24:14,330 INFO L280 TraceCheckUtils]: 43: Hoare triple {303254#true} ~cond~0 := #t~nondet9; {303254#true} is VALID [2020-07-08 22:24:14,331 INFO L280 TraceCheckUtils]: 44: Hoare triple {303254#true} havoc #t~nondet9; {303254#true} is VALID [2020-07-08 22:24:14,331 INFO L280 TraceCheckUtils]: 45: Hoare triple {303254#true} assume !(0 == ~cond~0); {303254#true} is VALID [2020-07-08 22:24:14,331 INFO L280 TraceCheckUtils]: 46: Hoare triple {303254#true} ~lk1~0 := 0; {303254#true} is VALID [2020-07-08 22:24:14,331 INFO L280 TraceCheckUtils]: 47: Hoare triple {303254#true} ~lk2~0 := 0; {303254#true} is VALID [2020-07-08 22:24:14,331 INFO L280 TraceCheckUtils]: 48: Hoare triple {303254#true} ~lk3~0 := 0; {303254#true} is VALID [2020-07-08 22:24:14,331 INFO L280 TraceCheckUtils]: 49: Hoare triple {303254#true} ~lk4~0 := 0; {303254#true} is VALID [2020-07-08 22:24:14,331 INFO L280 TraceCheckUtils]: 50: Hoare triple {303254#true} ~lk5~0 := 0; {303254#true} is VALID [2020-07-08 22:24:14,331 INFO L280 TraceCheckUtils]: 51: Hoare triple {303254#true} ~lk6~0 := 0; {303254#true} is VALID [2020-07-08 22:24:14,332 INFO L280 TraceCheckUtils]: 52: Hoare triple {303254#true} ~lk7~0 := 0; {303254#true} is VALID [2020-07-08 22:24:14,334 INFO L280 TraceCheckUtils]: 53: Hoare triple {303254#true} ~lk8~0 := 0; {303254#true} is VALID [2020-07-08 22:24:14,334 INFO L280 TraceCheckUtils]: 54: Hoare triple {303254#true} ~lk9~0 := 0; {303254#true} is VALID [2020-07-08 22:24:14,335 INFO L280 TraceCheckUtils]: 55: Hoare triple {303254#true} assume !(0 != ~p1~0); {303254#true} is VALID [2020-07-08 22:24:14,335 INFO L280 TraceCheckUtils]: 56: Hoare triple {303254#true} assume !(0 != ~p2~0); {303254#true} is VALID [2020-07-08 22:24:14,335 INFO L280 TraceCheckUtils]: 57: Hoare triple {303254#true} assume !(0 != ~p3~0); {303254#true} is VALID [2020-07-08 22:24:14,335 INFO L280 TraceCheckUtils]: 58: Hoare triple {303254#true} assume !(0 != ~p4~0); {303254#true} is VALID [2020-07-08 22:24:14,335 INFO L280 TraceCheckUtils]: 59: Hoare triple {303254#true} assume !(0 != ~p5~0); {303254#true} is VALID [2020-07-08 22:24:14,335 INFO L280 TraceCheckUtils]: 60: Hoare triple {303254#true} assume !(0 != ~p6~0); {303254#true} is VALID [2020-07-08 22:24:14,336 INFO L280 TraceCheckUtils]: 61: Hoare triple {303254#true} assume !(0 != ~p7~0); {303254#true} is VALID [2020-07-08 22:24:14,336 INFO L280 TraceCheckUtils]: 62: Hoare triple {303254#true} assume 0 != ~p8~0; {303254#true} is VALID [2020-07-08 22:24:14,336 INFO L280 TraceCheckUtils]: 63: Hoare triple {303254#true} ~lk8~0 := 1; {303258#(= 1 main_~lk8~0)} is VALID [2020-07-08 22:24:14,337 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 22:24:14,337 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 22:24:14,338 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 22:24:14,338 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 22:24:14,339 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 22:24:14,339 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 22:24:14,340 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 22:24:14,340 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 22:24:14,341 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 22:24:14,341 INFO L280 TraceCheckUtils]: 73: Hoare triple {303258#(= 1 main_~lk8~0)} assume 1 != ~lk8~0; {303255#false} is VALID [2020-07-08 22:24:14,341 INFO L280 TraceCheckUtils]: 74: Hoare triple {303255#false} assume !false; {303255#false} is VALID [2020-07-08 22:24:14,344 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 22:24:14,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302684496] [2020-07-08 22:24:14,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:24:14,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:24:14,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581633336] [2020-07-08 22:24:14,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-08 22:24:14,345 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:24:14,346 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:24:14,412 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 22:24:14,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:24:14,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:24:14,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:24:14,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:24:14,414 INFO L87 Difference]: Start difference. First operand 12075 states and 15018 transitions. Second operand 3 states. [2020-07-08 22:25:17,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:17,951 INFO L93 Difference]: Finished difference Result 14127 states and 17324 transitions. [2020-07-08 22:25:17,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:25:17,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-08 22:25:17,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:25:17,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:25:17,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2020-07-08 22:25:17,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:25:17,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2020-07-08 22:25:17,954 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 173 transitions. [2020-07-08 22:25:18,110 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 22:25:27,280 INFO L225 Difference]: With dead ends: 14127 [2020-07-08 22:25:27,280 INFO L226 Difference]: Without dead ends: 14125 [2020-07-08 22:25:27,283 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 22:25:27,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14125 states. [2020-07-08 22:26:16,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14125 to 12075. [2020-07-08 22:26:16,948 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:26:16,948 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14125 states. Second operand 12075 states. [2020-07-08 22:26:16,949 INFO L74 IsIncluded]: Start isIncluded. First operand 14125 states. Second operand 12075 states. [2020-07-08 22:26:16,949 INFO L87 Difference]: Start difference. First operand 14125 states. Second operand 12075 states. [2020-07-08 22:26:29,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:26:29,442 INFO L93 Difference]: Finished difference Result 14125 states and 17195 transitions. [2020-07-08 22:26:29,442 INFO L276 IsEmpty]: Start isEmpty. Operand 14125 states and 17195 transitions. [2020-07-08 22:26:29,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:26:29,457 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:26:29,457 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 14125 states. [2020-07-08 22:26:29,457 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 14125 states. [2020-07-08 22:26:45,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:26:45,273 INFO L93 Difference]: Finished difference Result 14125 states and 17195 transitions. [2020-07-08 22:26:45,273 INFO L276 IsEmpty]: Start isEmpty. Operand 14125 states and 17195 transitions. [2020-07-08 22:26:45,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:26:45,283 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:26:45,283 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:26:45,283 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:26:45,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-08 22:26:54,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 14890 transitions. [2020-07-08 22:26:54,547 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 14890 transitions. Word has length 75 [2020-07-08 22:26:54,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:26:54,547 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 14890 transitions. [2020-07-08 22:26:54,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:26:54,547 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 14890 transitions. [2020-07-08 22:27:16,163 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 22:27:16,164 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 14890 transitions. [2020-07-08 22:27:16,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-08 22:27:16,169 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:27:16,169 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 22:27:16,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-08 22:27:16,169 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:27:16,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:27:16,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1321782988, now seen corresponding path program 1 times [2020-07-08 22:27:16,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:27:16,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493615117] [2020-07-08 22:27:16,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:27:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:27:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:27:16,192 INFO L280 TraceCheckUtils]: 0: Hoare triple {383915#true} assume true; {383915#true} is VALID [2020-07-08 22:27:16,192 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {383915#true} {383915#true} #247#return; {383915#true} is VALID [2020-07-08 22:27:16,193 INFO L263 TraceCheckUtils]: 0: Hoare triple {383915#true} call ULTIMATE.init(); {383915#true} is VALID [2020-07-08 22:27:16,193 INFO L280 TraceCheckUtils]: 1: Hoare triple {383915#true} assume true; {383915#true} is VALID [2020-07-08 22:27:16,193 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {383915#true} {383915#true} #247#return; {383915#true} is VALID [2020-07-08 22:27:16,193 INFO L263 TraceCheckUtils]: 3: Hoare triple {383915#true} call #t~ret10 := main(); {383915#true} is VALID [2020-07-08 22:27:16,193 INFO L280 TraceCheckUtils]: 4: Hoare triple {383915#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {383915#true} is VALID [2020-07-08 22:27:16,193 INFO L280 TraceCheckUtils]: 5: Hoare triple {383915#true} ~p1~0 := #t~nondet0; {383915#true} is VALID [2020-07-08 22:27:16,194 INFO L280 TraceCheckUtils]: 6: Hoare triple {383915#true} havoc #t~nondet0; {383915#true} is VALID [2020-07-08 22:27:16,194 INFO L280 TraceCheckUtils]: 7: Hoare triple {383915#true} havoc ~lk1~0; {383915#true} is VALID [2020-07-08 22:27:16,194 INFO L280 TraceCheckUtils]: 8: Hoare triple {383915#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {383915#true} is VALID [2020-07-08 22:27:16,194 INFO L280 TraceCheckUtils]: 9: Hoare triple {383915#true} ~p2~0 := #t~nondet1; {383915#true} is VALID [2020-07-08 22:27:16,194 INFO L280 TraceCheckUtils]: 10: Hoare triple {383915#true} havoc #t~nondet1; {383915#true} is VALID [2020-07-08 22:27:16,194 INFO L280 TraceCheckUtils]: 11: Hoare triple {383915#true} havoc ~lk2~0; {383915#true} is VALID [2020-07-08 22:27:16,195 INFO L280 TraceCheckUtils]: 12: Hoare triple {383915#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {383915#true} is VALID [2020-07-08 22:27:16,195 INFO L280 TraceCheckUtils]: 13: Hoare triple {383915#true} ~p3~0 := #t~nondet2; {383915#true} is VALID [2020-07-08 22:27:16,195 INFO L280 TraceCheckUtils]: 14: Hoare triple {383915#true} havoc #t~nondet2; {383915#true} is VALID [2020-07-08 22:27:16,195 INFO L280 TraceCheckUtils]: 15: Hoare triple {383915#true} havoc ~lk3~0; {383915#true} is VALID [2020-07-08 22:27:16,195 INFO L280 TraceCheckUtils]: 16: Hoare triple {383915#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {383915#true} is VALID [2020-07-08 22:27:16,195 INFO L280 TraceCheckUtils]: 17: Hoare triple {383915#true} ~p4~0 := #t~nondet3; {383915#true} is VALID [2020-07-08 22:27:16,196 INFO L280 TraceCheckUtils]: 18: Hoare triple {383915#true} havoc #t~nondet3; {383915#true} is VALID [2020-07-08 22:27:16,196 INFO L280 TraceCheckUtils]: 19: Hoare triple {383915#true} havoc ~lk4~0; {383915#true} is VALID [2020-07-08 22:27:16,196 INFO L280 TraceCheckUtils]: 20: Hoare triple {383915#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {383915#true} is VALID [2020-07-08 22:27:16,196 INFO L280 TraceCheckUtils]: 21: Hoare triple {383915#true} ~p5~0 := #t~nondet4; {383915#true} is VALID [2020-07-08 22:27:16,196 INFO L280 TraceCheckUtils]: 22: Hoare triple {383915#true} havoc #t~nondet4; {383915#true} is VALID [2020-07-08 22:27:16,196 INFO L280 TraceCheckUtils]: 23: Hoare triple {383915#true} havoc ~lk5~0; {383915#true} is VALID [2020-07-08 22:27:16,197 INFO L280 TraceCheckUtils]: 24: Hoare triple {383915#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {383915#true} is VALID [2020-07-08 22:27:16,197 INFO L280 TraceCheckUtils]: 25: Hoare triple {383915#true} ~p6~0 := #t~nondet5; {383915#true} is VALID [2020-07-08 22:27:16,197 INFO L280 TraceCheckUtils]: 26: Hoare triple {383915#true} havoc #t~nondet5; {383915#true} is VALID [2020-07-08 22:27:16,197 INFO L280 TraceCheckUtils]: 27: Hoare triple {383915#true} havoc ~lk6~0; {383915#true} is VALID [2020-07-08 22:27:16,197 INFO L280 TraceCheckUtils]: 28: Hoare triple {383915#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {383915#true} is VALID [2020-07-08 22:27:16,198 INFO L280 TraceCheckUtils]: 29: Hoare triple {383915#true} ~p7~0 := #t~nondet6; {383915#true} is VALID [2020-07-08 22:27:16,198 INFO L280 TraceCheckUtils]: 30: Hoare triple {383915#true} havoc #t~nondet6; {383915#true} is VALID [2020-07-08 22:27:16,198 INFO L280 TraceCheckUtils]: 31: Hoare triple {383915#true} havoc ~lk7~0; {383915#true} is VALID [2020-07-08 22:27:16,198 INFO L280 TraceCheckUtils]: 32: Hoare triple {383915#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {383915#true} is VALID [2020-07-08 22:27:16,198 INFO L280 TraceCheckUtils]: 33: Hoare triple {383915#true} ~p8~0 := #t~nondet7; {383915#true} is VALID [2020-07-08 22:27:16,199 INFO L280 TraceCheckUtils]: 34: Hoare triple {383915#true} havoc #t~nondet7; {383915#true} is VALID [2020-07-08 22:27:16,199 INFO L280 TraceCheckUtils]: 35: Hoare triple {383915#true} havoc ~lk8~0; {383915#true} is VALID [2020-07-08 22:27:16,199 INFO L280 TraceCheckUtils]: 36: Hoare triple {383915#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {383915#true} is VALID [2020-07-08 22:27:16,199 INFO L280 TraceCheckUtils]: 37: Hoare triple {383915#true} ~p9~0 := #t~nondet8; {383915#true} is VALID [2020-07-08 22:27:16,199 INFO L280 TraceCheckUtils]: 38: Hoare triple {383915#true} havoc #t~nondet8; {383915#true} is VALID [2020-07-08 22:27:16,200 INFO L280 TraceCheckUtils]: 39: Hoare triple {383915#true} havoc ~lk9~0; {383915#true} is VALID [2020-07-08 22:27:16,200 INFO L280 TraceCheckUtils]: 40: Hoare triple {383915#true} havoc ~cond~0; {383915#true} is VALID [2020-07-08 22:27:16,200 INFO L280 TraceCheckUtils]: 41: Hoare triple {383915#true} assume !false; {383915#true} is VALID [2020-07-08 22:27:16,200 INFO L280 TraceCheckUtils]: 42: Hoare triple {383915#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {383915#true} is VALID [2020-07-08 22:27:16,200 INFO L280 TraceCheckUtils]: 43: Hoare triple {383915#true} ~cond~0 := #t~nondet9; {383915#true} is VALID [2020-07-08 22:27:16,200 INFO L280 TraceCheckUtils]: 44: Hoare triple {383915#true} havoc #t~nondet9; {383915#true} is VALID [2020-07-08 22:27:16,201 INFO L280 TraceCheckUtils]: 45: Hoare triple {383915#true} assume !(0 == ~cond~0); {383915#true} is VALID [2020-07-08 22:27:16,201 INFO L280 TraceCheckUtils]: 46: Hoare triple {383915#true} ~lk1~0 := 0; {383915#true} is VALID [2020-07-08 22:27:16,201 INFO L280 TraceCheckUtils]: 47: Hoare triple {383915#true} ~lk2~0 := 0; {383915#true} is VALID [2020-07-08 22:27:16,201 INFO L280 TraceCheckUtils]: 48: Hoare triple {383915#true} ~lk3~0 := 0; {383915#true} is VALID [2020-07-08 22:27:16,201 INFO L280 TraceCheckUtils]: 49: Hoare triple {383915#true} ~lk4~0 := 0; {383915#true} is VALID [2020-07-08 22:27:16,202 INFO L280 TraceCheckUtils]: 50: Hoare triple {383915#true} ~lk5~0 := 0; {383915#true} is VALID [2020-07-08 22:27:16,202 INFO L280 TraceCheckUtils]: 51: Hoare triple {383915#true} ~lk6~0 := 0; {383915#true} is VALID [2020-07-08 22:27:16,202 INFO L280 TraceCheckUtils]: 52: Hoare triple {383915#true} ~lk7~0 := 0; {383915#true} is VALID [2020-07-08 22:27:16,202 INFO L280 TraceCheckUtils]: 53: Hoare triple {383915#true} ~lk8~0 := 0; {383915#true} is VALID [2020-07-08 22:27:16,202 INFO L280 TraceCheckUtils]: 54: Hoare triple {383915#true} ~lk9~0 := 0; {383915#true} is VALID [2020-07-08 22:27:16,202 INFO L280 TraceCheckUtils]: 55: Hoare triple {383915#true} assume !(0 != ~p1~0); {383915#true} is VALID [2020-07-08 22:27:16,203 INFO L280 TraceCheckUtils]: 56: Hoare triple {383915#true} assume !(0 != ~p2~0); {383915#true} is VALID [2020-07-08 22:27:16,203 INFO L280 TraceCheckUtils]: 57: Hoare triple {383915#true} assume !(0 != ~p3~0); {383915#true} is VALID [2020-07-08 22:27:16,203 INFO L280 TraceCheckUtils]: 58: Hoare triple {383915#true} assume !(0 != ~p4~0); {383915#true} is VALID [2020-07-08 22:27:16,203 INFO L280 TraceCheckUtils]: 59: Hoare triple {383915#true} assume !(0 != ~p5~0); {383915#true} is VALID [2020-07-08 22:27:16,203 INFO L280 TraceCheckUtils]: 60: Hoare triple {383915#true} assume !(0 != ~p6~0); {383915#true} is VALID [2020-07-08 22:27:16,203 INFO L280 TraceCheckUtils]: 61: Hoare triple {383915#true} assume !(0 != ~p7~0); {383915#true} is VALID [2020-07-08 22:27:16,204 INFO L280 TraceCheckUtils]: 62: Hoare triple {383915#true} assume !(0 != ~p8~0); {383915#true} is VALID [2020-07-08 22:27:16,210 INFO L280 TraceCheckUtils]: 63: Hoare triple {383915#true} assume !(0 != ~p9~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-08 22:27:16,210 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 22:27:16,211 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 22:27:16,211 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 22:27:16,211 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 22:27:16,212 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 22:27:16,212 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 22:27:16,212 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 22:27:16,213 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 22:27:16,213 INFO L280 TraceCheckUtils]: 72: Hoare triple {383919#(= 0 main_~p9~0)} assume 0 != ~p9~0; {383916#false} is VALID [2020-07-08 22:27:16,213 INFO L280 TraceCheckUtils]: 73: Hoare triple {383916#false} assume 1 != ~lk9~0; {383916#false} is VALID [2020-07-08 22:27:16,213 INFO L280 TraceCheckUtils]: 74: Hoare triple {383916#false} assume !false; {383916#false} is VALID [2020-07-08 22:27:16,254 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 22:27:16,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493615117] [2020-07-08 22:27:16,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:27:16,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:27:16,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100621541] [2020-07-08 22:27:16,256 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-08 22:27:16,256 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:27:16,256 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:27:16,320 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 22:27:16,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:27:16,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:27:16,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:27:16,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:27:16,321 INFO L87 Difference]: Start difference. First operand 12075 states and 14890 transitions. Second operand 3 states.