/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/locks/test_locks_9.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:17:37,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:17:37,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:17:38,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:17:38,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:17:38,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:17:38,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:17:38,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:17:38,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:17:38,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:17:38,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:17:38,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:17:38,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:17:38,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:17:38,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:17:38,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:17:38,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:17:38,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:17:38,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:17:38,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:17:38,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:17:38,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:17:38,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:17:38,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:17:38,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:17:38,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:17:38,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:17:38,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:17:38,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:17:38,091 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:17:38,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:17:38,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:17:38,096 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:17:38,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:17:38,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:17:38,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:17:38,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:17:38,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:17:38,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:17:38,100 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:17:38,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:17:38,100 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:17:38,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:17:38,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:17:38,101 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:17:38,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:17:38,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:17:38,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:17:38,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:17:38,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:17:38,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:17:38,102 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:17:38,365 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:17:38,380 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:17:38,383 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:17:38,384 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:17:38,385 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:17:38,385 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_9.c [2020-07-18 00:17:38,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce46d0e84/9aedfb72c8b4404ba4c1160be88963ca/FLAG058466e50 [2020-07-18 00:17:38,911 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:17:38,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_9.c [2020-07-18 00:17:38,921 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce46d0e84/9aedfb72c8b4404ba4c1160be88963ca/FLAG058466e50 [2020-07-18 00:17:39,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce46d0e84/9aedfb72c8b4404ba4c1160be88963ca [2020-07-18 00:17:39,293 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:17:39,296 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:17:39,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:17:39,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:17:39,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:17:39,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:17:39" (1/1) ... [2020-07-18 00:17:39,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4be4e3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:17:39, skipping insertion in model container [2020-07-18 00:17:39,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:17:39" (1/1) ... [2020-07-18 00:17:39,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:17:39,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:17:39,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:17:39,537 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:17:39,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:17:39,578 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:17:39,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:17:39 WrapperNode [2020-07-18 00:17:39,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:17:39,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:17:39,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:17:39,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:17:39,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:17:39" (1/1) ... [2020-07-18 00:17:39,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:17:39" (1/1) ... [2020-07-18 00:17:39,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:17:39" (1/1) ... [2020-07-18 00:17:39,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:17:39" (1/1) ... [2020-07-18 00:17:39,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:17:39" (1/1) ... [2020-07-18 00:17:39,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:17:39" (1/1) ... [2020-07-18 00:17:39,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:17:39" (1/1) ... [2020-07-18 00:17:39,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:17:39,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:17:39,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:17:39,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:17:39,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:17:39" (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 [2020-07-18 00:17:39,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:17:39,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:17:39,776 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:17:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:17:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:17:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:17:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:17:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:17:40,326 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:17:40,326 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-18 00:17:40,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:17:40 BoogieIcfgContainer [2020-07-18 00:17:40,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:17:40,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:17:40,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:17:40,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:17:40,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:17:39" (1/3) ... [2020-07-18 00:17:40,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a754d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:17:40, skipping insertion in model container [2020-07-18 00:17:40,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:17:39" (2/3) ... [2020-07-18 00:17:40,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a754d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:17:40, skipping insertion in model container [2020-07-18 00:17:40,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:17:40" (3/3) ... [2020-07-18 00:17:40,342 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_9.c [2020-07-18 00:17:40,353 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:17:40,361 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:17:40,377 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:17:40,400 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:17:40,400 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:17:40,400 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:17:40,401 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:17:40,401 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:17:40,401 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:17:40,402 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:17:40,402 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:17:40,420 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2020-07-18 00:17:40,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-18 00:17:40,434 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:17:40,435 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] [2020-07-18 00:17:40,436 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:17:40,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:17:40,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1511648252, now seen corresponding path program 1 times [2020-07-18 00:17:40,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:17:40,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143560029] [2020-07-18 00:17:40,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:17:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:40,752 INFO L280 TraceCheckUtils]: 0: Hoare triple {111#true} assume true; {111#true} is VALID [2020-07-18 00:17:40,753 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {111#true} {111#true} #247#return; {111#true} is VALID [2020-07-18 00:17:40,755 INFO L263 TraceCheckUtils]: 0: Hoare triple {111#true} call ULTIMATE.init(); {111#true} is VALID [2020-07-18 00:17:40,755 INFO L280 TraceCheckUtils]: 1: Hoare triple {111#true} assume true; {111#true} is VALID [2020-07-18 00:17:40,756 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {111#true} {111#true} #247#return; {111#true} is VALID [2020-07-18 00:17:40,756 INFO L263 TraceCheckUtils]: 3: Hoare triple {111#true} call #t~ret10 := main(); {111#true} is VALID [2020-07-18 00:17:40,757 INFO L280 TraceCheckUtils]: 4: Hoare triple {111#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {111#true} is VALID [2020-07-18 00:17:40,757 INFO L280 TraceCheckUtils]: 5: Hoare triple {111#true} ~p1~0 := #t~nondet0; {111#true} is VALID [2020-07-18 00:17:40,757 INFO L280 TraceCheckUtils]: 6: Hoare triple {111#true} havoc #t~nondet0; {111#true} is VALID [2020-07-18 00:17:40,758 INFO L280 TraceCheckUtils]: 7: Hoare triple {111#true} havoc ~lk1~0; {111#true} is VALID [2020-07-18 00:17:40,758 INFO L280 TraceCheckUtils]: 8: Hoare triple {111#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {111#true} is VALID [2020-07-18 00:17:40,758 INFO L280 TraceCheckUtils]: 9: Hoare triple {111#true} ~p2~0 := #t~nondet1; {111#true} is VALID [2020-07-18 00:17:40,759 INFO L280 TraceCheckUtils]: 10: Hoare triple {111#true} havoc #t~nondet1; {111#true} is VALID [2020-07-18 00:17:40,759 INFO L280 TraceCheckUtils]: 11: Hoare triple {111#true} havoc ~lk2~0; {111#true} is VALID [2020-07-18 00:17:40,760 INFO L280 TraceCheckUtils]: 12: Hoare triple {111#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {111#true} is VALID [2020-07-18 00:17:40,761 INFO L280 TraceCheckUtils]: 13: Hoare triple {111#true} ~p3~0 := #t~nondet2; {111#true} is VALID [2020-07-18 00:17:40,761 INFO L280 TraceCheckUtils]: 14: Hoare triple {111#true} havoc #t~nondet2; {111#true} is VALID [2020-07-18 00:17:40,761 INFO L280 TraceCheckUtils]: 15: Hoare triple {111#true} havoc ~lk3~0; {111#true} is VALID [2020-07-18 00:17:40,762 INFO L280 TraceCheckUtils]: 16: Hoare triple {111#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {111#true} is VALID [2020-07-18 00:17:40,762 INFO L280 TraceCheckUtils]: 17: Hoare triple {111#true} ~p4~0 := #t~nondet3; {111#true} is VALID [2020-07-18 00:17:40,763 INFO L280 TraceCheckUtils]: 18: Hoare triple {111#true} havoc #t~nondet3; {111#true} is VALID [2020-07-18 00:17:40,764 INFO L280 TraceCheckUtils]: 19: Hoare triple {111#true} havoc ~lk4~0; {111#true} is VALID [2020-07-18 00:17:40,764 INFO L280 TraceCheckUtils]: 20: Hoare triple {111#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {111#true} is VALID [2020-07-18 00:17:40,767 INFO L280 TraceCheckUtils]: 21: Hoare triple {111#true} ~p5~0 := #t~nondet4; {111#true} is VALID [2020-07-18 00:17:40,768 INFO L280 TraceCheckUtils]: 22: Hoare triple {111#true} havoc #t~nondet4; {111#true} is VALID [2020-07-18 00:17:40,768 INFO L280 TraceCheckUtils]: 23: Hoare triple {111#true} havoc ~lk5~0; {111#true} is VALID [2020-07-18 00:17:40,769 INFO L280 TraceCheckUtils]: 24: Hoare triple {111#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {111#true} is VALID [2020-07-18 00:17:40,769 INFO L280 TraceCheckUtils]: 25: Hoare triple {111#true} ~p6~0 := #t~nondet5; {111#true} is VALID [2020-07-18 00:17:40,770 INFO L280 TraceCheckUtils]: 26: Hoare triple {111#true} havoc #t~nondet5; {111#true} is VALID [2020-07-18 00:17:40,770 INFO L280 TraceCheckUtils]: 27: Hoare triple {111#true} havoc ~lk6~0; {111#true} is VALID [2020-07-18 00:17:40,771 INFO L280 TraceCheckUtils]: 28: Hoare triple {111#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {111#true} is VALID [2020-07-18 00:17:40,771 INFO L280 TraceCheckUtils]: 29: Hoare triple {111#true} ~p7~0 := #t~nondet6; {111#true} is VALID [2020-07-18 00:17:40,772 INFO L280 TraceCheckUtils]: 30: Hoare triple {111#true} havoc #t~nondet6; {111#true} is VALID [2020-07-18 00:17:40,773 INFO L280 TraceCheckUtils]: 31: Hoare triple {111#true} havoc ~lk7~0; {111#true} is VALID [2020-07-18 00:17:40,773 INFO L280 TraceCheckUtils]: 32: Hoare triple {111#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {111#true} is VALID [2020-07-18 00:17:40,774 INFO L280 TraceCheckUtils]: 33: Hoare triple {111#true} ~p8~0 := #t~nondet7; {111#true} is VALID [2020-07-18 00:17:40,775 INFO L280 TraceCheckUtils]: 34: Hoare triple {111#true} havoc #t~nondet7; {111#true} is VALID [2020-07-18 00:17:40,775 INFO L280 TraceCheckUtils]: 35: Hoare triple {111#true} havoc ~lk8~0; {111#true} is VALID [2020-07-18 00:17:40,776 INFO L280 TraceCheckUtils]: 36: Hoare triple {111#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {111#true} is VALID [2020-07-18 00:17:40,776 INFO L280 TraceCheckUtils]: 37: Hoare triple {111#true} ~p9~0 := #t~nondet8; {111#true} is VALID [2020-07-18 00:17:40,777 INFO L280 TraceCheckUtils]: 38: Hoare triple {111#true} havoc #t~nondet8; {111#true} is VALID [2020-07-18 00:17:40,777 INFO L280 TraceCheckUtils]: 39: Hoare triple {111#true} havoc ~lk9~0; {111#true} is VALID [2020-07-18 00:17:40,778 INFO L280 TraceCheckUtils]: 40: Hoare triple {111#true} havoc ~cond~0; {111#true} is VALID [2020-07-18 00:17:40,778 INFO L280 TraceCheckUtils]: 41: Hoare triple {111#true} assume !false; {111#true} is VALID [2020-07-18 00:17:40,779 INFO L280 TraceCheckUtils]: 42: Hoare triple {111#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {111#true} is VALID [2020-07-18 00:17:40,779 INFO L280 TraceCheckUtils]: 43: Hoare triple {111#true} ~cond~0 := #t~nondet9; {111#true} is VALID [2020-07-18 00:17:40,779 INFO L280 TraceCheckUtils]: 44: Hoare triple {111#true} havoc #t~nondet9; {111#true} is VALID [2020-07-18 00:17:40,780 INFO L280 TraceCheckUtils]: 45: Hoare triple {111#true} assume !(0 == ~cond~0); {111#true} is VALID [2020-07-18 00:17:40,780 INFO L280 TraceCheckUtils]: 46: Hoare triple {111#true} ~lk1~0 := 0; {111#true} is VALID [2020-07-18 00:17:40,780 INFO L280 TraceCheckUtils]: 47: Hoare triple {111#true} ~lk2~0 := 0; {111#true} is VALID [2020-07-18 00:17:40,785 INFO L280 TraceCheckUtils]: 48: Hoare triple {111#true} ~lk3~0 := 0; {111#true} is VALID [2020-07-18 00:17:40,785 INFO L280 TraceCheckUtils]: 49: Hoare triple {111#true} ~lk4~0 := 0; {111#true} is VALID [2020-07-18 00:17:40,786 INFO L280 TraceCheckUtils]: 50: Hoare triple {111#true} ~lk5~0 := 0; {111#true} is VALID [2020-07-18 00:17:40,786 INFO L280 TraceCheckUtils]: 51: Hoare triple {111#true} ~lk6~0 := 0; {111#true} is VALID [2020-07-18 00:17:40,786 INFO L280 TraceCheckUtils]: 52: Hoare triple {111#true} ~lk7~0 := 0; {111#true} is VALID [2020-07-18 00:17:40,787 INFO L280 TraceCheckUtils]: 53: Hoare triple {111#true} ~lk8~0 := 0; {111#true} is VALID [2020-07-18 00:17:40,787 INFO L280 TraceCheckUtils]: 54: Hoare triple {111#true} ~lk9~0 := 0; {111#true} is VALID [2020-07-18 00:17:40,790 INFO L280 TraceCheckUtils]: 55: Hoare triple {111#true} assume !(0 != ~p1~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 00:17:40,792 INFO L280 TraceCheckUtils]: 56: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p2~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 00:17:40,799 INFO L280 TraceCheckUtils]: 57: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p3~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 00:17:40,800 INFO L280 TraceCheckUtils]: 58: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p4~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 00:17:40,802 INFO L280 TraceCheckUtils]: 59: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p5~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 00:17:40,806 INFO L280 TraceCheckUtils]: 60: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p6~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 00:17:40,807 INFO L280 TraceCheckUtils]: 61: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p7~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 00:17:40,808 INFO L280 TraceCheckUtils]: 62: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p8~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 00:17:40,809 INFO L280 TraceCheckUtils]: 63: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p9~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-18 00:17:40,811 INFO L280 TraceCheckUtils]: 64: Hoare triple {115#(= 0 main_~p1~0)} assume 0 != ~p1~0; {112#false} is VALID [2020-07-18 00:17:40,812 INFO L280 TraceCheckUtils]: 65: Hoare triple {112#false} assume 1 != ~lk1~0; {112#false} is VALID [2020-07-18 00:17:40,812 INFO L280 TraceCheckUtils]: 66: Hoare triple {112#false} assume !false; {112#false} is VALID [2020-07-18 00:17:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:17:40,834 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:17:40,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143560029] [2020-07-18 00:17:40,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:17:40,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:17:40,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076134080] [2020-07-18 00:17:40,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-18 00:17:40,858 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:17:40,863 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:17:41,009 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:41,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:17:41,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:17:41,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:17:41,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:41,024 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 3 states. [2020-07-18 00:17:41,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:41,570 INFO L93 Difference]: Finished difference Result 235 states and 322 transitions. [2020-07-18 00:17:41,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:17:41,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-18 00:17:41,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:17:41,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:17:41,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2020-07-18 00:17:41,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:17:41,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2020-07-18 00:17:41,601 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 322 transitions. [2020-07-18 00:17:42,006 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 322 edges. 322 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:42,050 INFO L225 Difference]: With dead ends: 235 [2020-07-18 00:17:42,051 INFO L226 Difference]: Without dead ends: 160 [2020-07-18 00:17:42,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:42,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-18 00:17:42,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2020-07-18 00:17:42,241 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:17:42,242 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 158 states. [2020-07-18 00:17:42,242 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 158 states. [2020-07-18 00:17:42,242 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 158 states. [2020-07-18 00:17:42,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:42,255 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2020-07-18 00:17:42,255 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2020-07-18 00:17:42,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:17:42,257 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:17:42,257 INFO L74 IsIncluded]: Start isIncluded. First operand 158 states. Second operand 160 states. [2020-07-18 00:17:42,258 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 160 states. [2020-07-18 00:17:42,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:42,269 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2020-07-18 00:17:42,270 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2020-07-18 00:17:42,272 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:17:42,272 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:17:42,272 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:17:42,273 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:17:42,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-07-18 00:17:42,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2020-07-18 00:17:42,287 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 67 [2020-07-18 00:17:42,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:17:42,288 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2020-07-18 00:17:42,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:17:42,288 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 158 states and 208 transitions. [2020-07-18 00:17:42,494 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 208 edges. 208 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:42,495 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2020-07-18 00:17:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-18 00:17:42,497 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:17:42,498 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] [2020-07-18 00:17:42,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:17:42,498 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:17:42,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:17:42,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1267771135, now seen corresponding path program 1 times [2020-07-18 00:17:42,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:17:42,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459252564] [2020-07-18 00:17:42,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:17:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:42,571 INFO L280 TraceCheckUtils]: 0: Hoare triple {1224#true} assume true; {1224#true} is VALID [2020-07-18 00:17:42,572 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1224#true} {1224#true} #247#return; {1224#true} is VALID [2020-07-18 00:17:42,572 INFO L263 TraceCheckUtils]: 0: Hoare triple {1224#true} call ULTIMATE.init(); {1224#true} is VALID [2020-07-18 00:17:42,572 INFO L280 TraceCheckUtils]: 1: Hoare triple {1224#true} assume true; {1224#true} is VALID [2020-07-18 00:17:42,573 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1224#true} {1224#true} #247#return; {1224#true} is VALID [2020-07-18 00:17:42,573 INFO L263 TraceCheckUtils]: 3: Hoare triple {1224#true} call #t~ret10 := main(); {1224#true} is VALID [2020-07-18 00:17:42,573 INFO L280 TraceCheckUtils]: 4: Hoare triple {1224#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1224#true} is VALID [2020-07-18 00:17:42,574 INFO L280 TraceCheckUtils]: 5: Hoare triple {1224#true} ~p1~0 := #t~nondet0; {1224#true} is VALID [2020-07-18 00:17:42,574 INFO L280 TraceCheckUtils]: 6: Hoare triple {1224#true} havoc #t~nondet0; {1224#true} is VALID [2020-07-18 00:17:42,574 INFO L280 TraceCheckUtils]: 7: Hoare triple {1224#true} havoc ~lk1~0; {1224#true} is VALID [2020-07-18 00:17:42,575 INFO L280 TraceCheckUtils]: 8: Hoare triple {1224#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1224#true} is VALID [2020-07-18 00:17:42,575 INFO L280 TraceCheckUtils]: 9: Hoare triple {1224#true} ~p2~0 := #t~nondet1; {1224#true} is VALID [2020-07-18 00:17:42,575 INFO L280 TraceCheckUtils]: 10: Hoare triple {1224#true} havoc #t~nondet1; {1224#true} is VALID [2020-07-18 00:17:42,575 INFO L280 TraceCheckUtils]: 11: Hoare triple {1224#true} havoc ~lk2~0; {1224#true} is VALID [2020-07-18 00:17:42,576 INFO L280 TraceCheckUtils]: 12: Hoare triple {1224#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {1224#true} is VALID [2020-07-18 00:17:42,576 INFO L280 TraceCheckUtils]: 13: Hoare triple {1224#true} ~p3~0 := #t~nondet2; {1224#true} is VALID [2020-07-18 00:17:42,576 INFO L280 TraceCheckUtils]: 14: Hoare triple {1224#true} havoc #t~nondet2; {1224#true} is VALID [2020-07-18 00:17:42,577 INFO L280 TraceCheckUtils]: 15: Hoare triple {1224#true} havoc ~lk3~0; {1224#true} is VALID [2020-07-18 00:17:42,577 INFO L280 TraceCheckUtils]: 16: Hoare triple {1224#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {1224#true} is VALID [2020-07-18 00:17:42,577 INFO L280 TraceCheckUtils]: 17: Hoare triple {1224#true} ~p4~0 := #t~nondet3; {1224#true} is VALID [2020-07-18 00:17:42,578 INFO L280 TraceCheckUtils]: 18: Hoare triple {1224#true} havoc #t~nondet3; {1224#true} is VALID [2020-07-18 00:17:42,578 INFO L280 TraceCheckUtils]: 19: Hoare triple {1224#true} havoc ~lk4~0; {1224#true} is VALID [2020-07-18 00:17:42,578 INFO L280 TraceCheckUtils]: 20: Hoare triple {1224#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {1224#true} is VALID [2020-07-18 00:17:42,578 INFO L280 TraceCheckUtils]: 21: Hoare triple {1224#true} ~p5~0 := #t~nondet4; {1224#true} is VALID [2020-07-18 00:17:42,579 INFO L280 TraceCheckUtils]: 22: Hoare triple {1224#true} havoc #t~nondet4; {1224#true} is VALID [2020-07-18 00:17:42,579 INFO L280 TraceCheckUtils]: 23: Hoare triple {1224#true} havoc ~lk5~0; {1224#true} is VALID [2020-07-18 00:17:42,579 INFO L280 TraceCheckUtils]: 24: Hoare triple {1224#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {1224#true} is VALID [2020-07-18 00:17:42,580 INFO L280 TraceCheckUtils]: 25: Hoare triple {1224#true} ~p6~0 := #t~nondet5; {1224#true} is VALID [2020-07-18 00:17:42,580 INFO L280 TraceCheckUtils]: 26: Hoare triple {1224#true} havoc #t~nondet5; {1224#true} is VALID [2020-07-18 00:17:42,580 INFO L280 TraceCheckUtils]: 27: Hoare triple {1224#true} havoc ~lk6~0; {1224#true} is VALID [2020-07-18 00:17:42,581 INFO L280 TraceCheckUtils]: 28: Hoare triple {1224#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {1224#true} is VALID [2020-07-18 00:17:42,581 INFO L280 TraceCheckUtils]: 29: Hoare triple {1224#true} ~p7~0 := #t~nondet6; {1224#true} is VALID [2020-07-18 00:17:42,581 INFO L280 TraceCheckUtils]: 30: Hoare triple {1224#true} havoc #t~nondet6; {1224#true} is VALID [2020-07-18 00:17:42,582 INFO L280 TraceCheckUtils]: 31: Hoare triple {1224#true} havoc ~lk7~0; {1224#true} is VALID [2020-07-18 00:17:42,582 INFO L280 TraceCheckUtils]: 32: Hoare triple {1224#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {1224#true} is VALID [2020-07-18 00:17:42,582 INFO L280 TraceCheckUtils]: 33: Hoare triple {1224#true} ~p8~0 := #t~nondet7; {1224#true} is VALID [2020-07-18 00:17:42,582 INFO L280 TraceCheckUtils]: 34: Hoare triple {1224#true} havoc #t~nondet7; {1224#true} is VALID [2020-07-18 00:17:42,583 INFO L280 TraceCheckUtils]: 35: Hoare triple {1224#true} havoc ~lk8~0; {1224#true} is VALID [2020-07-18 00:17:42,583 INFO L280 TraceCheckUtils]: 36: Hoare triple {1224#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {1224#true} is VALID [2020-07-18 00:17:42,583 INFO L280 TraceCheckUtils]: 37: Hoare triple {1224#true} ~p9~0 := #t~nondet8; {1224#true} is VALID [2020-07-18 00:17:42,584 INFO L280 TraceCheckUtils]: 38: Hoare triple {1224#true} havoc #t~nondet8; {1224#true} is VALID [2020-07-18 00:17:42,584 INFO L280 TraceCheckUtils]: 39: Hoare triple {1224#true} havoc ~lk9~0; {1224#true} is VALID [2020-07-18 00:17:42,584 INFO L280 TraceCheckUtils]: 40: Hoare triple {1224#true} havoc ~cond~0; {1224#true} is VALID [2020-07-18 00:17:42,585 INFO L280 TraceCheckUtils]: 41: Hoare triple {1224#true} assume !false; {1224#true} is VALID [2020-07-18 00:17:42,585 INFO L280 TraceCheckUtils]: 42: Hoare triple {1224#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {1224#true} is VALID [2020-07-18 00:17:42,585 INFO L280 TraceCheckUtils]: 43: Hoare triple {1224#true} ~cond~0 := #t~nondet9; {1224#true} is VALID [2020-07-18 00:17:42,586 INFO L280 TraceCheckUtils]: 44: Hoare triple {1224#true} havoc #t~nondet9; {1224#true} is VALID [2020-07-18 00:17:42,586 INFO L280 TraceCheckUtils]: 45: Hoare triple {1224#true} assume !(0 == ~cond~0); {1224#true} is VALID [2020-07-18 00:17:42,586 INFO L280 TraceCheckUtils]: 46: Hoare triple {1224#true} ~lk1~0 := 0; {1224#true} is VALID [2020-07-18 00:17:42,586 INFO L280 TraceCheckUtils]: 47: Hoare triple {1224#true} ~lk2~0 := 0; {1224#true} is VALID [2020-07-18 00:17:42,587 INFO L280 TraceCheckUtils]: 48: Hoare triple {1224#true} ~lk3~0 := 0; {1224#true} is VALID [2020-07-18 00:17:42,587 INFO L280 TraceCheckUtils]: 49: Hoare triple {1224#true} ~lk4~0 := 0; {1224#true} is VALID [2020-07-18 00:17:42,587 INFO L280 TraceCheckUtils]: 50: Hoare triple {1224#true} ~lk5~0 := 0; {1224#true} is VALID [2020-07-18 00:17:42,588 INFO L280 TraceCheckUtils]: 51: Hoare triple {1224#true} ~lk6~0 := 0; {1224#true} is VALID [2020-07-18 00:17:42,588 INFO L280 TraceCheckUtils]: 52: Hoare triple {1224#true} ~lk7~0 := 0; {1224#true} is VALID [2020-07-18 00:17:42,588 INFO L280 TraceCheckUtils]: 53: Hoare triple {1224#true} ~lk8~0 := 0; {1224#true} is VALID [2020-07-18 00:17:42,589 INFO L280 TraceCheckUtils]: 54: Hoare triple {1224#true} ~lk9~0 := 0; {1224#true} is VALID [2020-07-18 00:17:42,589 INFO L280 TraceCheckUtils]: 55: Hoare triple {1224#true} assume 0 != ~p1~0; {1224#true} is VALID [2020-07-18 00:17:42,590 INFO L280 TraceCheckUtils]: 56: Hoare triple {1224#true} ~lk1~0 := 1; {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 00:17:42,591 INFO L280 TraceCheckUtils]: 57: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p2~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 00:17:42,591 INFO L280 TraceCheckUtils]: 58: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p3~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 00:17:42,592 INFO L280 TraceCheckUtils]: 59: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p4~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 00:17:42,593 INFO L280 TraceCheckUtils]: 60: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p5~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 00:17:42,593 INFO L280 TraceCheckUtils]: 61: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p6~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 00:17:42,594 INFO L280 TraceCheckUtils]: 62: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p7~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 00:17:42,595 INFO L280 TraceCheckUtils]: 63: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p8~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 00:17:42,595 INFO L280 TraceCheckUtils]: 64: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p9~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 00:17:42,596 INFO L280 TraceCheckUtils]: 65: Hoare triple {1228#(= 1 main_~lk1~0)} assume 0 != ~p1~0; {1228#(= 1 main_~lk1~0)} is VALID [2020-07-18 00:17:42,597 INFO L280 TraceCheckUtils]: 66: Hoare triple {1228#(= 1 main_~lk1~0)} assume 1 != ~lk1~0; {1225#false} is VALID [2020-07-18 00:17:42,597 INFO L280 TraceCheckUtils]: 67: Hoare triple {1225#false} assume !false; {1225#false} is VALID [2020-07-18 00:17:42,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:17:42,603 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:17:42,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459252564] [2020-07-18 00:17:42,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:17:42,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:17:42,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812605463] [2020-07-18 00:17:42,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-18 00:17:42,605 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:17:42,605 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:17:42,695 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:42,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:17:42,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:17:42,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:17:42,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:42,696 INFO L87 Difference]: Start difference. First operand 158 states and 208 transitions. Second operand 3 states. [2020-07-18 00:17:43,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:43,134 INFO L93 Difference]: Finished difference Result 192 states and 256 transitions. [2020-07-18 00:17:43,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:17:43,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-18 00:17:43,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:17:43,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:17:43,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2020-07-18 00:17:43,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:17:43,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2020-07-18 00:17:43,150 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 201 transitions. [2020-07-18 00:17:43,357 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 201 edges. 201 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:43,365 INFO L225 Difference]: With dead ends: 192 [2020-07-18 00:17:43,366 INFO L226 Difference]: Without dead ends: 190 [2020-07-18 00:17:43,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:43,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-07-18 00:17:43,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 158. [2020-07-18 00:17:43,496 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:17:43,496 INFO L82 GeneralOperation]: Start isEquivalent. First operand 190 states. Second operand 158 states. [2020-07-18 00:17:43,496 INFO L74 IsIncluded]: Start isIncluded. First operand 190 states. Second operand 158 states. [2020-07-18 00:17:43,496 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 158 states. [2020-07-18 00:17:43,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:43,511 INFO L93 Difference]: Finished difference Result 190 states and 254 transitions. [2020-07-18 00:17:43,512 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2020-07-18 00:17:43,513 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:17:43,513 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:17:43,514 INFO L74 IsIncluded]: Start isIncluded. First operand 158 states. Second operand 190 states. [2020-07-18 00:17:43,514 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 190 states. [2020-07-18 00:17:43,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:43,528 INFO L93 Difference]: Finished difference Result 190 states and 254 transitions. [2020-07-18 00:17:43,528 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2020-07-18 00:17:43,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:17:43,530 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:17:43,530 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:17:43,530 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:17:43,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-07-18 00:17:43,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 207 transitions. [2020-07-18 00:17:43,540 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 207 transitions. Word has length 68 [2020-07-18 00:17:43,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:17:43,541 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 207 transitions. [2020-07-18 00:17:43,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:17:43,541 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 158 states and 207 transitions. [2020-07-18 00:17:43,749 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 207 edges. 207 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:43,750 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 207 transitions. [2020-07-18 00:17:43,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-18 00:17:43,752 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:17:43,752 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] [2020-07-18 00:17:43,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:17:43,752 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:17:43,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:17:43,753 INFO L82 PathProgramCache]: Analyzing trace with hash -383300170, now seen corresponding path program 1 times [2020-07-18 00:17:43,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:17:43,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191236805] [2020-07-18 00:17:43,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:17:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:43,823 INFO L280 TraceCheckUtils]: 0: Hoare triple {2311#true} assume true; {2311#true} is VALID [2020-07-18 00:17:43,823 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2311#true} {2311#true} #247#return; {2311#true} is VALID [2020-07-18 00:17:43,824 INFO L263 TraceCheckUtils]: 0: Hoare triple {2311#true} call ULTIMATE.init(); {2311#true} is VALID [2020-07-18 00:17:43,824 INFO L280 TraceCheckUtils]: 1: Hoare triple {2311#true} assume true; {2311#true} is VALID [2020-07-18 00:17:43,825 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2311#true} {2311#true} #247#return; {2311#true} is VALID [2020-07-18 00:17:43,825 INFO L263 TraceCheckUtils]: 3: Hoare triple {2311#true} call #t~ret10 := main(); {2311#true} is VALID [2020-07-18 00:17:43,825 INFO L280 TraceCheckUtils]: 4: Hoare triple {2311#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {2311#true} is VALID [2020-07-18 00:17:43,826 INFO L280 TraceCheckUtils]: 5: Hoare triple {2311#true} ~p1~0 := #t~nondet0; {2311#true} is VALID [2020-07-18 00:17:43,826 INFO L280 TraceCheckUtils]: 6: Hoare triple {2311#true} havoc #t~nondet0; {2311#true} is VALID [2020-07-18 00:17:43,826 INFO L280 TraceCheckUtils]: 7: Hoare triple {2311#true} havoc ~lk1~0; {2311#true} is VALID [2020-07-18 00:17:43,826 INFO L280 TraceCheckUtils]: 8: Hoare triple {2311#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {2311#true} is VALID [2020-07-18 00:17:43,827 INFO L280 TraceCheckUtils]: 9: Hoare triple {2311#true} ~p2~0 := #t~nondet1; {2311#true} is VALID [2020-07-18 00:17:43,827 INFO L280 TraceCheckUtils]: 10: Hoare triple {2311#true} havoc #t~nondet1; {2311#true} is VALID [2020-07-18 00:17:43,827 INFO L280 TraceCheckUtils]: 11: Hoare triple {2311#true} havoc ~lk2~0; {2311#true} is VALID [2020-07-18 00:17:43,827 INFO L280 TraceCheckUtils]: 12: Hoare triple {2311#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {2311#true} is VALID [2020-07-18 00:17:43,828 INFO L280 TraceCheckUtils]: 13: Hoare triple {2311#true} ~p3~0 := #t~nondet2; {2311#true} is VALID [2020-07-18 00:17:43,828 INFO L280 TraceCheckUtils]: 14: Hoare triple {2311#true} havoc #t~nondet2; {2311#true} is VALID [2020-07-18 00:17:43,828 INFO L280 TraceCheckUtils]: 15: Hoare triple {2311#true} havoc ~lk3~0; {2311#true} is VALID [2020-07-18 00:17:43,829 INFO L280 TraceCheckUtils]: 16: Hoare triple {2311#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {2311#true} is VALID [2020-07-18 00:17:43,829 INFO L280 TraceCheckUtils]: 17: Hoare triple {2311#true} ~p4~0 := #t~nondet3; {2311#true} is VALID [2020-07-18 00:17:43,829 INFO L280 TraceCheckUtils]: 18: Hoare triple {2311#true} havoc #t~nondet3; {2311#true} is VALID [2020-07-18 00:17:43,829 INFO L280 TraceCheckUtils]: 19: Hoare triple {2311#true} havoc ~lk4~0; {2311#true} is VALID [2020-07-18 00:17:43,830 INFO L280 TraceCheckUtils]: 20: Hoare triple {2311#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {2311#true} is VALID [2020-07-18 00:17:43,830 INFO L280 TraceCheckUtils]: 21: Hoare triple {2311#true} ~p5~0 := #t~nondet4; {2311#true} is VALID [2020-07-18 00:17:43,830 INFO L280 TraceCheckUtils]: 22: Hoare triple {2311#true} havoc #t~nondet4; {2311#true} is VALID [2020-07-18 00:17:43,830 INFO L280 TraceCheckUtils]: 23: Hoare triple {2311#true} havoc ~lk5~0; {2311#true} is VALID [2020-07-18 00:17:43,830 INFO L280 TraceCheckUtils]: 24: Hoare triple {2311#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {2311#true} is VALID [2020-07-18 00:17:43,831 INFO L280 TraceCheckUtils]: 25: Hoare triple {2311#true} ~p6~0 := #t~nondet5; {2311#true} is VALID [2020-07-18 00:17:43,831 INFO L280 TraceCheckUtils]: 26: Hoare triple {2311#true} havoc #t~nondet5; {2311#true} is VALID [2020-07-18 00:17:43,831 INFO L280 TraceCheckUtils]: 27: Hoare triple {2311#true} havoc ~lk6~0; {2311#true} is VALID [2020-07-18 00:17:43,831 INFO L280 TraceCheckUtils]: 28: Hoare triple {2311#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {2311#true} is VALID [2020-07-18 00:17:43,832 INFO L280 TraceCheckUtils]: 29: Hoare triple {2311#true} ~p7~0 := #t~nondet6; {2311#true} is VALID [2020-07-18 00:17:43,832 INFO L280 TraceCheckUtils]: 30: Hoare triple {2311#true} havoc #t~nondet6; {2311#true} is VALID [2020-07-18 00:17:43,832 INFO L280 TraceCheckUtils]: 31: Hoare triple {2311#true} havoc ~lk7~0; {2311#true} is VALID [2020-07-18 00:17:43,832 INFO L280 TraceCheckUtils]: 32: Hoare triple {2311#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {2311#true} is VALID [2020-07-18 00:17:43,833 INFO L280 TraceCheckUtils]: 33: Hoare triple {2311#true} ~p8~0 := #t~nondet7; {2311#true} is VALID [2020-07-18 00:17:43,833 INFO L280 TraceCheckUtils]: 34: Hoare triple {2311#true} havoc #t~nondet7; {2311#true} is VALID [2020-07-18 00:17:43,833 INFO L280 TraceCheckUtils]: 35: Hoare triple {2311#true} havoc ~lk8~0; {2311#true} is VALID [2020-07-18 00:17:43,833 INFO L280 TraceCheckUtils]: 36: Hoare triple {2311#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {2311#true} is VALID [2020-07-18 00:17:43,834 INFO L280 TraceCheckUtils]: 37: Hoare triple {2311#true} ~p9~0 := #t~nondet8; {2311#true} is VALID [2020-07-18 00:17:43,834 INFO L280 TraceCheckUtils]: 38: Hoare triple {2311#true} havoc #t~nondet8; {2311#true} is VALID [2020-07-18 00:17:43,834 INFO L280 TraceCheckUtils]: 39: Hoare triple {2311#true} havoc ~lk9~0; {2311#true} is VALID [2020-07-18 00:17:43,834 INFO L280 TraceCheckUtils]: 40: Hoare triple {2311#true} havoc ~cond~0; {2311#true} is VALID [2020-07-18 00:17:43,835 INFO L280 TraceCheckUtils]: 41: Hoare triple {2311#true} assume !false; {2311#true} is VALID [2020-07-18 00:17:43,835 INFO L280 TraceCheckUtils]: 42: Hoare triple {2311#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {2311#true} is VALID [2020-07-18 00:17:43,835 INFO L280 TraceCheckUtils]: 43: Hoare triple {2311#true} ~cond~0 := #t~nondet9; {2311#true} is VALID [2020-07-18 00:17:43,835 INFO L280 TraceCheckUtils]: 44: Hoare triple {2311#true} havoc #t~nondet9; {2311#true} is VALID [2020-07-18 00:17:43,836 INFO L280 TraceCheckUtils]: 45: Hoare triple {2311#true} assume !(0 == ~cond~0); {2311#true} is VALID [2020-07-18 00:17:43,836 INFO L280 TraceCheckUtils]: 46: Hoare triple {2311#true} ~lk1~0 := 0; {2311#true} is VALID [2020-07-18 00:17:43,836 INFO L280 TraceCheckUtils]: 47: Hoare triple {2311#true} ~lk2~0 := 0; {2311#true} is VALID [2020-07-18 00:17:43,836 INFO L280 TraceCheckUtils]: 48: Hoare triple {2311#true} ~lk3~0 := 0; {2311#true} is VALID [2020-07-18 00:17:43,836 INFO L280 TraceCheckUtils]: 49: Hoare triple {2311#true} ~lk4~0 := 0; {2311#true} is VALID [2020-07-18 00:17:43,837 INFO L280 TraceCheckUtils]: 50: Hoare triple {2311#true} ~lk5~0 := 0; {2311#true} is VALID [2020-07-18 00:17:43,837 INFO L280 TraceCheckUtils]: 51: Hoare triple {2311#true} ~lk6~0 := 0; {2311#true} is VALID [2020-07-18 00:17:43,837 INFO L280 TraceCheckUtils]: 52: Hoare triple {2311#true} ~lk7~0 := 0; {2311#true} is VALID [2020-07-18 00:17:43,838 INFO L280 TraceCheckUtils]: 53: Hoare triple {2311#true} ~lk8~0 := 0; {2311#true} is VALID [2020-07-18 00:17:43,838 INFO L280 TraceCheckUtils]: 54: Hoare triple {2311#true} ~lk9~0 := 0; {2311#true} is VALID [2020-07-18 00:17:43,838 INFO L280 TraceCheckUtils]: 55: Hoare triple {2311#true} assume !(0 != ~p1~0); {2311#true} is VALID [2020-07-18 00:17:43,839 INFO L280 TraceCheckUtils]: 56: Hoare triple {2311#true} assume !(0 != ~p2~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 00:17:43,842 INFO L280 TraceCheckUtils]: 57: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p3~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 00:17:43,843 INFO L280 TraceCheckUtils]: 58: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p4~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 00:17:43,845 INFO L280 TraceCheckUtils]: 59: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p5~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 00:17:43,846 INFO L280 TraceCheckUtils]: 60: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p6~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 00:17:43,847 INFO L280 TraceCheckUtils]: 61: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p7~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 00:17:43,847 INFO L280 TraceCheckUtils]: 62: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p8~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 00:17:43,848 INFO L280 TraceCheckUtils]: 63: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p9~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 00:17:43,848 INFO L280 TraceCheckUtils]: 64: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p1~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-18 00:17:43,849 INFO L280 TraceCheckUtils]: 65: Hoare triple {2315#(= 0 main_~p2~0)} assume 0 != ~p2~0; {2312#false} is VALID [2020-07-18 00:17:43,849 INFO L280 TraceCheckUtils]: 66: Hoare triple {2312#false} assume 1 != ~lk2~0; {2312#false} is VALID [2020-07-18 00:17:43,850 INFO L280 TraceCheckUtils]: 67: Hoare triple {2312#false} assume !false; {2312#false} is VALID [2020-07-18 00:17:43,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:17:43,855 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:17:43,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [191236805] [2020-07-18 00:17:43,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:17:43,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:17:43,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519523598] [2020-07-18 00:17:43,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-18 00:17:43,857 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:17:43,857 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:17:43,914 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:43,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:17:43,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:17:43,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:17:43,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:43,916 INFO L87 Difference]: Start difference. First operand 158 states and 207 transitions. Second operand 3 states. [2020-07-18 00:17:44,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:44,429 INFO L93 Difference]: Finished difference Result 386 states and 531 transitions. [2020-07-18 00:17:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:17:44,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-18 00:17:44,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:17:44,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:17:44,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2020-07-18 00:17:44,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:17:44,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2020-07-18 00:17:44,438 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 295 transitions. [2020-07-18 00:17:44,733 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 295 edges. 295 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:44,741 INFO L225 Difference]: With dead ends: 386 [2020-07-18 00:17:44,741 INFO L226 Difference]: Without dead ends: 269 [2020-07-18 00:17:44,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:44,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-07-18 00:17:45,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2020-07-18 00:17:45,006 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:17:45,006 INFO L82 GeneralOperation]: Start isEquivalent. First operand 269 states. Second operand 267 states. [2020-07-18 00:17:45,006 INFO L74 IsIncluded]: Start isIncluded. First operand 269 states. Second operand 267 states. [2020-07-18 00:17:45,006 INFO L87 Difference]: Start difference. First operand 269 states. Second operand 267 states. [2020-07-18 00:17:45,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:45,017 INFO L93 Difference]: Finished difference Result 269 states and 361 transitions. [2020-07-18 00:17:45,018 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 361 transitions. [2020-07-18 00:17:45,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:17:45,019 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:17:45,019 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states. Second operand 269 states. [2020-07-18 00:17:45,019 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 269 states. [2020-07-18 00:17:45,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:45,030 INFO L93 Difference]: Finished difference Result 269 states and 361 transitions. [2020-07-18 00:17:45,030 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 361 transitions. [2020-07-18 00:17:45,031 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:17:45,031 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:17:45,031 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:17:45,031 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:17:45,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-07-18 00:17:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 360 transitions. [2020-07-18 00:17:45,041 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 360 transitions. Word has length 68 [2020-07-18 00:17:45,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:17:45,042 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 360 transitions. [2020-07-18 00:17:45,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:17:45,042 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 267 states and 360 transitions. [2020-07-18 00:17:45,445 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 360 edges. 360 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:45,446 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 360 transitions. [2020-07-18 00:17:45,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-18 00:17:45,447 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:17:45,448 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] [2020-07-18 00:17:45,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-18 00:17:45,448 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:17:45,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:17:45,449 INFO L82 PathProgramCache]: Analyzing trace with hash 113752694, now seen corresponding path program 1 times [2020-07-18 00:17:45,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:17:45,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81016021] [2020-07-18 00:17:45,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:17:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:45,501 INFO L280 TraceCheckUtils]: 0: Hoare triple {4162#true} assume true; {4162#true} is VALID [2020-07-18 00:17:45,501 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {4162#true} {4162#true} #247#return; {4162#true} is VALID [2020-07-18 00:17:45,502 INFO L263 TraceCheckUtils]: 0: Hoare triple {4162#true} call ULTIMATE.init(); {4162#true} is VALID [2020-07-18 00:17:45,502 INFO L280 TraceCheckUtils]: 1: Hoare triple {4162#true} assume true; {4162#true} is VALID [2020-07-18 00:17:45,502 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4162#true} {4162#true} #247#return; {4162#true} is VALID [2020-07-18 00:17:45,502 INFO L263 TraceCheckUtils]: 3: Hoare triple {4162#true} call #t~ret10 := main(); {4162#true} is VALID [2020-07-18 00:17:45,503 INFO L280 TraceCheckUtils]: 4: Hoare triple {4162#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {4162#true} is VALID [2020-07-18 00:17:45,503 INFO L280 TraceCheckUtils]: 5: Hoare triple {4162#true} ~p1~0 := #t~nondet0; {4162#true} is VALID [2020-07-18 00:17:45,503 INFO L280 TraceCheckUtils]: 6: Hoare triple {4162#true} havoc #t~nondet0; {4162#true} is VALID [2020-07-18 00:17:45,503 INFO L280 TraceCheckUtils]: 7: Hoare triple {4162#true} havoc ~lk1~0; {4162#true} is VALID [2020-07-18 00:17:45,504 INFO L280 TraceCheckUtils]: 8: Hoare triple {4162#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {4162#true} is VALID [2020-07-18 00:17:45,504 INFO L280 TraceCheckUtils]: 9: Hoare triple {4162#true} ~p2~0 := #t~nondet1; {4162#true} is VALID [2020-07-18 00:17:45,504 INFO L280 TraceCheckUtils]: 10: Hoare triple {4162#true} havoc #t~nondet1; {4162#true} is VALID [2020-07-18 00:17:45,504 INFO L280 TraceCheckUtils]: 11: Hoare triple {4162#true} havoc ~lk2~0; {4162#true} is VALID [2020-07-18 00:17:45,505 INFO L280 TraceCheckUtils]: 12: Hoare triple {4162#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4162#true} is VALID [2020-07-18 00:17:45,505 INFO L280 TraceCheckUtils]: 13: Hoare triple {4162#true} ~p3~0 := #t~nondet2; {4162#true} is VALID [2020-07-18 00:17:45,505 INFO L280 TraceCheckUtils]: 14: Hoare triple {4162#true} havoc #t~nondet2; {4162#true} is VALID [2020-07-18 00:17:45,505 INFO L280 TraceCheckUtils]: 15: Hoare triple {4162#true} havoc ~lk3~0; {4162#true} is VALID [2020-07-18 00:17:45,505 INFO L280 TraceCheckUtils]: 16: Hoare triple {4162#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {4162#true} is VALID [2020-07-18 00:17:45,506 INFO L280 TraceCheckUtils]: 17: Hoare triple {4162#true} ~p4~0 := #t~nondet3; {4162#true} is VALID [2020-07-18 00:17:45,506 INFO L280 TraceCheckUtils]: 18: Hoare triple {4162#true} havoc #t~nondet3; {4162#true} is VALID [2020-07-18 00:17:45,506 INFO L280 TraceCheckUtils]: 19: Hoare triple {4162#true} havoc ~lk4~0; {4162#true} is VALID [2020-07-18 00:17:45,506 INFO L280 TraceCheckUtils]: 20: Hoare triple {4162#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {4162#true} is VALID [2020-07-18 00:17:45,507 INFO L280 TraceCheckUtils]: 21: Hoare triple {4162#true} ~p5~0 := #t~nondet4; {4162#true} is VALID [2020-07-18 00:17:45,507 INFO L280 TraceCheckUtils]: 22: Hoare triple {4162#true} havoc #t~nondet4; {4162#true} is VALID [2020-07-18 00:17:45,507 INFO L280 TraceCheckUtils]: 23: Hoare triple {4162#true} havoc ~lk5~0; {4162#true} is VALID [2020-07-18 00:17:45,507 INFO L280 TraceCheckUtils]: 24: Hoare triple {4162#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {4162#true} is VALID [2020-07-18 00:17:45,508 INFO L280 TraceCheckUtils]: 25: Hoare triple {4162#true} ~p6~0 := #t~nondet5; {4162#true} is VALID [2020-07-18 00:17:45,508 INFO L280 TraceCheckUtils]: 26: Hoare triple {4162#true} havoc #t~nondet5; {4162#true} is VALID [2020-07-18 00:17:45,508 INFO L280 TraceCheckUtils]: 27: Hoare triple {4162#true} havoc ~lk6~0; {4162#true} is VALID [2020-07-18 00:17:45,508 INFO L280 TraceCheckUtils]: 28: Hoare triple {4162#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {4162#true} is VALID [2020-07-18 00:17:45,508 INFO L280 TraceCheckUtils]: 29: Hoare triple {4162#true} ~p7~0 := #t~nondet6; {4162#true} is VALID [2020-07-18 00:17:45,509 INFO L280 TraceCheckUtils]: 30: Hoare triple {4162#true} havoc #t~nondet6; {4162#true} is VALID [2020-07-18 00:17:45,509 INFO L280 TraceCheckUtils]: 31: Hoare triple {4162#true} havoc ~lk7~0; {4162#true} is VALID [2020-07-18 00:17:45,509 INFO L280 TraceCheckUtils]: 32: Hoare triple {4162#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {4162#true} is VALID [2020-07-18 00:17:45,509 INFO L280 TraceCheckUtils]: 33: Hoare triple {4162#true} ~p8~0 := #t~nondet7; {4162#true} is VALID [2020-07-18 00:17:45,510 INFO L280 TraceCheckUtils]: 34: Hoare triple {4162#true} havoc #t~nondet7; {4162#true} is VALID [2020-07-18 00:17:45,510 INFO L280 TraceCheckUtils]: 35: Hoare triple {4162#true} havoc ~lk8~0; {4162#true} is VALID [2020-07-18 00:17:45,510 INFO L280 TraceCheckUtils]: 36: Hoare triple {4162#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {4162#true} is VALID [2020-07-18 00:17:45,510 INFO L280 TraceCheckUtils]: 37: Hoare triple {4162#true} ~p9~0 := #t~nondet8; {4162#true} is VALID [2020-07-18 00:17:45,510 INFO L280 TraceCheckUtils]: 38: Hoare triple {4162#true} havoc #t~nondet8; {4162#true} is VALID [2020-07-18 00:17:45,511 INFO L280 TraceCheckUtils]: 39: Hoare triple {4162#true} havoc ~lk9~0; {4162#true} is VALID [2020-07-18 00:17:45,511 INFO L280 TraceCheckUtils]: 40: Hoare triple {4162#true} havoc ~cond~0; {4162#true} is VALID [2020-07-18 00:17:45,511 INFO L280 TraceCheckUtils]: 41: Hoare triple {4162#true} assume !false; {4162#true} is VALID [2020-07-18 00:17:45,511 INFO L280 TraceCheckUtils]: 42: Hoare triple {4162#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {4162#true} is VALID [2020-07-18 00:17:45,512 INFO L280 TraceCheckUtils]: 43: Hoare triple {4162#true} ~cond~0 := #t~nondet9; {4162#true} is VALID [2020-07-18 00:17:45,512 INFO L280 TraceCheckUtils]: 44: Hoare triple {4162#true} havoc #t~nondet9; {4162#true} is VALID [2020-07-18 00:17:45,512 INFO L280 TraceCheckUtils]: 45: Hoare triple {4162#true} assume !(0 == ~cond~0); {4162#true} is VALID [2020-07-18 00:17:45,512 INFO L280 TraceCheckUtils]: 46: Hoare triple {4162#true} ~lk1~0 := 0; {4162#true} is VALID [2020-07-18 00:17:45,513 INFO L280 TraceCheckUtils]: 47: Hoare triple {4162#true} ~lk2~0 := 0; {4162#true} is VALID [2020-07-18 00:17:45,513 INFO L280 TraceCheckUtils]: 48: Hoare triple {4162#true} ~lk3~0 := 0; {4162#true} is VALID [2020-07-18 00:17:45,513 INFO L280 TraceCheckUtils]: 49: Hoare triple {4162#true} ~lk4~0 := 0; {4162#true} is VALID [2020-07-18 00:17:45,513 INFO L280 TraceCheckUtils]: 50: Hoare triple {4162#true} ~lk5~0 := 0; {4162#true} is VALID [2020-07-18 00:17:45,513 INFO L280 TraceCheckUtils]: 51: Hoare triple {4162#true} ~lk6~0 := 0; {4162#true} is VALID [2020-07-18 00:17:45,514 INFO L280 TraceCheckUtils]: 52: Hoare triple {4162#true} ~lk7~0 := 0; {4162#true} is VALID [2020-07-18 00:17:45,514 INFO L280 TraceCheckUtils]: 53: Hoare triple {4162#true} ~lk8~0 := 0; {4162#true} is VALID [2020-07-18 00:17:45,514 INFO L280 TraceCheckUtils]: 54: Hoare triple {4162#true} ~lk9~0 := 0; {4162#true} is VALID [2020-07-18 00:17:45,514 INFO L280 TraceCheckUtils]: 55: Hoare triple {4162#true} assume !(0 != ~p1~0); {4162#true} is VALID [2020-07-18 00:17:45,524 INFO L280 TraceCheckUtils]: 56: Hoare triple {4162#true} assume 0 != ~p2~0; {4162#true} is VALID [2020-07-18 00:17:45,525 INFO L280 TraceCheckUtils]: 57: Hoare triple {4162#true} ~lk2~0 := 1; {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 00:17:45,526 INFO L280 TraceCheckUtils]: 58: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p3~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 00:17:45,526 INFO L280 TraceCheckUtils]: 59: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p4~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 00:17:45,527 INFO L280 TraceCheckUtils]: 60: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p5~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 00:17:45,529 INFO L280 TraceCheckUtils]: 61: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p6~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 00:17:45,535 INFO L280 TraceCheckUtils]: 62: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p7~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 00:17:45,540 INFO L280 TraceCheckUtils]: 63: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p8~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 00:17:45,541 INFO L280 TraceCheckUtils]: 64: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p9~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 00:17:45,542 INFO L280 TraceCheckUtils]: 65: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p1~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 00:17:45,542 INFO L280 TraceCheckUtils]: 66: Hoare triple {4166#(= 1 main_~lk2~0)} assume 0 != ~p2~0; {4166#(= 1 main_~lk2~0)} is VALID [2020-07-18 00:17:45,543 INFO L280 TraceCheckUtils]: 67: Hoare triple {4166#(= 1 main_~lk2~0)} assume 1 != ~lk2~0; {4163#false} is VALID [2020-07-18 00:17:45,543 INFO L280 TraceCheckUtils]: 68: Hoare triple {4163#false} assume !false; {4163#false} is VALID [2020-07-18 00:17:45,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:17:45,549 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:17:45,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81016021] [2020-07-18 00:17:45,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:17:45,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:17:45,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311567128] [2020-07-18 00:17:45,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-18 00:17:45,553 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:17:45,553 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:17:45,604 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:45,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:17:45,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:17:45,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:17:45,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:45,606 INFO L87 Difference]: Start difference. First operand 267 states and 360 transitions. Second operand 3 states. [2020-07-18 00:17:46,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:46,160 INFO L93 Difference]: Finished difference Result 327 states and 446 transitions. [2020-07-18 00:17:46,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:17:46,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-18 00:17:46,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:17:46,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:17:46,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2020-07-18 00:17:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:17:46,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2020-07-18 00:17:46,171 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 197 transitions. [2020-07-18 00:17:46,369 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 197 edges. 197 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:46,376 INFO L225 Difference]: With dead ends: 327 [2020-07-18 00:17:46,377 INFO L226 Difference]: Without dead ends: 325 [2020-07-18 00:17:46,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:46,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-07-18 00:17:46,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 267. [2020-07-18 00:17:46,687 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:17:46,687 INFO L82 GeneralOperation]: Start isEquivalent. First operand 325 states. Second operand 267 states. [2020-07-18 00:17:46,687 INFO L74 IsIncluded]: Start isIncluded. First operand 325 states. Second operand 267 states. [2020-07-18 00:17:46,687 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 267 states. [2020-07-18 00:17:46,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:46,700 INFO L93 Difference]: Finished difference Result 325 states and 443 transitions. [2020-07-18 00:17:46,700 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 443 transitions. [2020-07-18 00:17:46,701 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:17:46,701 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:17:46,702 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states. Second operand 325 states. [2020-07-18 00:17:46,702 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 325 states. [2020-07-18 00:17:46,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:46,715 INFO L93 Difference]: Finished difference Result 325 states and 443 transitions. [2020-07-18 00:17:46,715 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 443 transitions. [2020-07-18 00:17:46,716 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:17:46,716 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:17:46,717 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:17:46,717 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:17:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-07-18 00:17:46,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 358 transitions. [2020-07-18 00:17:46,727 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 358 transitions. Word has length 69 [2020-07-18 00:17:46,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:17:46,727 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 358 transitions. [2020-07-18 00:17:46,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:17:46,727 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 267 states and 358 transitions. [2020-07-18 00:17:47,132 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 358 edges. 358 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:47,133 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 358 transitions. [2020-07-18 00:17:47,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-18 00:17:47,134 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:17:47,134 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] [2020-07-18 00:17:47,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-18 00:17:47,135 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:17:47,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:17:47,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1002841264, now seen corresponding path program 1 times [2020-07-18 00:17:47,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:17:47,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685059225] [2020-07-18 00:17:47,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:17:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:47,187 INFO L280 TraceCheckUtils]: 0: Hoare triple {6007#true} assume true; {6007#true} is VALID [2020-07-18 00:17:47,187 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {6007#true} {6007#true} #247#return; {6007#true} is VALID [2020-07-18 00:17:47,188 INFO L263 TraceCheckUtils]: 0: Hoare triple {6007#true} call ULTIMATE.init(); {6007#true} is VALID [2020-07-18 00:17:47,188 INFO L280 TraceCheckUtils]: 1: Hoare triple {6007#true} assume true; {6007#true} is VALID [2020-07-18 00:17:47,188 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6007#true} {6007#true} #247#return; {6007#true} is VALID [2020-07-18 00:17:47,188 INFO L263 TraceCheckUtils]: 3: Hoare triple {6007#true} call #t~ret10 := main(); {6007#true} is VALID [2020-07-18 00:17:47,189 INFO L280 TraceCheckUtils]: 4: Hoare triple {6007#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {6007#true} is VALID [2020-07-18 00:17:47,189 INFO L280 TraceCheckUtils]: 5: Hoare triple {6007#true} ~p1~0 := #t~nondet0; {6007#true} is VALID [2020-07-18 00:17:47,189 INFO L280 TraceCheckUtils]: 6: Hoare triple {6007#true} havoc #t~nondet0; {6007#true} is VALID [2020-07-18 00:17:47,189 INFO L280 TraceCheckUtils]: 7: Hoare triple {6007#true} havoc ~lk1~0; {6007#true} is VALID [2020-07-18 00:17:47,189 INFO L280 TraceCheckUtils]: 8: Hoare triple {6007#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {6007#true} is VALID [2020-07-18 00:17:47,190 INFO L280 TraceCheckUtils]: 9: Hoare triple {6007#true} ~p2~0 := #t~nondet1; {6007#true} is VALID [2020-07-18 00:17:47,190 INFO L280 TraceCheckUtils]: 10: Hoare triple {6007#true} havoc #t~nondet1; {6007#true} is VALID [2020-07-18 00:17:47,190 INFO L280 TraceCheckUtils]: 11: Hoare triple {6007#true} havoc ~lk2~0; {6007#true} is VALID [2020-07-18 00:17:47,190 INFO L280 TraceCheckUtils]: 12: Hoare triple {6007#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6007#true} is VALID [2020-07-18 00:17:47,191 INFO L280 TraceCheckUtils]: 13: Hoare triple {6007#true} ~p3~0 := #t~nondet2; {6007#true} is VALID [2020-07-18 00:17:47,191 INFO L280 TraceCheckUtils]: 14: Hoare triple {6007#true} havoc #t~nondet2; {6007#true} is VALID [2020-07-18 00:17:47,191 INFO L280 TraceCheckUtils]: 15: Hoare triple {6007#true} havoc ~lk3~0; {6007#true} is VALID [2020-07-18 00:17:47,191 INFO L280 TraceCheckUtils]: 16: Hoare triple {6007#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {6007#true} is VALID [2020-07-18 00:17:47,191 INFO L280 TraceCheckUtils]: 17: Hoare triple {6007#true} ~p4~0 := #t~nondet3; {6007#true} is VALID [2020-07-18 00:17:47,192 INFO L280 TraceCheckUtils]: 18: Hoare triple {6007#true} havoc #t~nondet3; {6007#true} is VALID [2020-07-18 00:17:47,192 INFO L280 TraceCheckUtils]: 19: Hoare triple {6007#true} havoc ~lk4~0; {6007#true} is VALID [2020-07-18 00:17:47,192 INFO L280 TraceCheckUtils]: 20: Hoare triple {6007#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {6007#true} is VALID [2020-07-18 00:17:47,192 INFO L280 TraceCheckUtils]: 21: Hoare triple {6007#true} ~p5~0 := #t~nondet4; {6007#true} is VALID [2020-07-18 00:17:47,193 INFO L280 TraceCheckUtils]: 22: Hoare triple {6007#true} havoc #t~nondet4; {6007#true} is VALID [2020-07-18 00:17:47,193 INFO L280 TraceCheckUtils]: 23: Hoare triple {6007#true} havoc ~lk5~0; {6007#true} is VALID [2020-07-18 00:17:47,193 INFO L280 TraceCheckUtils]: 24: Hoare triple {6007#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {6007#true} is VALID [2020-07-18 00:17:47,193 INFO L280 TraceCheckUtils]: 25: Hoare triple {6007#true} ~p6~0 := #t~nondet5; {6007#true} is VALID [2020-07-18 00:17:47,194 INFO L280 TraceCheckUtils]: 26: Hoare triple {6007#true} havoc #t~nondet5; {6007#true} is VALID [2020-07-18 00:17:47,194 INFO L280 TraceCheckUtils]: 27: Hoare triple {6007#true} havoc ~lk6~0; {6007#true} is VALID [2020-07-18 00:17:47,194 INFO L280 TraceCheckUtils]: 28: Hoare triple {6007#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {6007#true} is VALID [2020-07-18 00:17:47,194 INFO L280 TraceCheckUtils]: 29: Hoare triple {6007#true} ~p7~0 := #t~nondet6; {6007#true} is VALID [2020-07-18 00:17:47,194 INFO L280 TraceCheckUtils]: 30: Hoare triple {6007#true} havoc #t~nondet6; {6007#true} is VALID [2020-07-18 00:17:47,195 INFO L280 TraceCheckUtils]: 31: Hoare triple {6007#true} havoc ~lk7~0; {6007#true} is VALID [2020-07-18 00:17:47,195 INFO L280 TraceCheckUtils]: 32: Hoare triple {6007#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {6007#true} is VALID [2020-07-18 00:17:47,195 INFO L280 TraceCheckUtils]: 33: Hoare triple {6007#true} ~p8~0 := #t~nondet7; {6007#true} is VALID [2020-07-18 00:17:47,195 INFO L280 TraceCheckUtils]: 34: Hoare triple {6007#true} havoc #t~nondet7; {6007#true} is VALID [2020-07-18 00:17:47,196 INFO L280 TraceCheckUtils]: 35: Hoare triple {6007#true} havoc ~lk8~0; {6007#true} is VALID [2020-07-18 00:17:47,196 INFO L280 TraceCheckUtils]: 36: Hoare triple {6007#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {6007#true} is VALID [2020-07-18 00:17:47,196 INFO L280 TraceCheckUtils]: 37: Hoare triple {6007#true} ~p9~0 := #t~nondet8; {6007#true} is VALID [2020-07-18 00:17:47,196 INFO L280 TraceCheckUtils]: 38: Hoare triple {6007#true} havoc #t~nondet8; {6007#true} is VALID [2020-07-18 00:17:47,196 INFO L280 TraceCheckUtils]: 39: Hoare triple {6007#true} havoc ~lk9~0; {6007#true} is VALID [2020-07-18 00:17:47,197 INFO L280 TraceCheckUtils]: 40: Hoare triple {6007#true} havoc ~cond~0; {6007#true} is VALID [2020-07-18 00:17:47,197 INFO L280 TraceCheckUtils]: 41: Hoare triple {6007#true} assume !false; {6007#true} is VALID [2020-07-18 00:17:47,197 INFO L280 TraceCheckUtils]: 42: Hoare triple {6007#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {6007#true} is VALID [2020-07-18 00:17:47,197 INFO L280 TraceCheckUtils]: 43: Hoare triple {6007#true} ~cond~0 := #t~nondet9; {6007#true} is VALID [2020-07-18 00:17:47,198 INFO L280 TraceCheckUtils]: 44: Hoare triple {6007#true} havoc #t~nondet9; {6007#true} is VALID [2020-07-18 00:17:47,198 INFO L280 TraceCheckUtils]: 45: Hoare triple {6007#true} assume !(0 == ~cond~0); {6007#true} is VALID [2020-07-18 00:17:47,198 INFO L280 TraceCheckUtils]: 46: Hoare triple {6007#true} ~lk1~0 := 0; {6007#true} is VALID [2020-07-18 00:17:47,198 INFO L280 TraceCheckUtils]: 47: Hoare triple {6007#true} ~lk2~0 := 0; {6007#true} is VALID [2020-07-18 00:17:47,199 INFO L280 TraceCheckUtils]: 48: Hoare triple {6007#true} ~lk3~0 := 0; {6007#true} is VALID [2020-07-18 00:17:47,199 INFO L280 TraceCheckUtils]: 49: Hoare triple {6007#true} ~lk4~0 := 0; {6007#true} is VALID [2020-07-18 00:17:47,199 INFO L280 TraceCheckUtils]: 50: Hoare triple {6007#true} ~lk5~0 := 0; {6007#true} is VALID [2020-07-18 00:17:47,199 INFO L280 TraceCheckUtils]: 51: Hoare triple {6007#true} ~lk6~0 := 0; {6007#true} is VALID [2020-07-18 00:17:47,199 INFO L280 TraceCheckUtils]: 52: Hoare triple {6007#true} ~lk7~0 := 0; {6007#true} is VALID [2020-07-18 00:17:47,200 INFO L280 TraceCheckUtils]: 53: Hoare triple {6007#true} ~lk8~0 := 0; {6007#true} is VALID [2020-07-18 00:17:47,200 INFO L280 TraceCheckUtils]: 54: Hoare triple {6007#true} ~lk9~0 := 0; {6007#true} is VALID [2020-07-18 00:17:47,200 INFO L280 TraceCheckUtils]: 55: Hoare triple {6007#true} assume !(0 != ~p1~0); {6007#true} is VALID [2020-07-18 00:17:47,200 INFO L280 TraceCheckUtils]: 56: Hoare triple {6007#true} assume !(0 != ~p2~0); {6007#true} is VALID [2020-07-18 00:17:47,206 INFO L280 TraceCheckUtils]: 57: Hoare triple {6007#true} assume !(0 != ~p3~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 00:17:47,207 INFO L280 TraceCheckUtils]: 58: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p4~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 00:17:47,208 INFO L280 TraceCheckUtils]: 59: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p5~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 00:17:47,209 INFO L280 TraceCheckUtils]: 60: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p6~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 00:17:47,210 INFO L280 TraceCheckUtils]: 61: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p7~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 00:17:47,211 INFO L280 TraceCheckUtils]: 62: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p8~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 00:17:47,211 INFO L280 TraceCheckUtils]: 63: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p9~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 00:17:47,212 INFO L280 TraceCheckUtils]: 64: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p1~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 00:17:47,212 INFO L280 TraceCheckUtils]: 65: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p2~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-18 00:17:47,213 INFO L280 TraceCheckUtils]: 66: Hoare triple {6011#(= 0 main_~p3~0)} assume 0 != ~p3~0; {6008#false} is VALID [2020-07-18 00:17:47,213 INFO L280 TraceCheckUtils]: 67: Hoare triple {6008#false} assume 1 != ~lk3~0; {6008#false} is VALID [2020-07-18 00:17:47,213 INFO L280 TraceCheckUtils]: 68: Hoare triple {6008#false} assume !false; {6008#false} is VALID [2020-07-18 00:17:47,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:17:47,217 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:17:47,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685059225] [2020-07-18 00:17:47,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:17:47,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:17:47,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904302310] [2020-07-18 00:17:47,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-18 00:17:47,219 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:17:47,219 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:17:47,289 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:47,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:17:47,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:17:47,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:17:47,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:47,290 INFO L87 Difference]: Start difference. First operand 267 states and 358 transitions. Second operand 3 states. [2020-07-18 00:17:48,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:48,229 INFO L93 Difference]: Finished difference Result 707 states and 976 transitions. [2020-07-18 00:17:48,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:17:48,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-18 00:17:48,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:17:48,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:17:48,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2020-07-18 00:17:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:17:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2020-07-18 00:17:48,237 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 292 transitions. [2020-07-18 00:17:48,530 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 292 edges. 292 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:48,546 INFO L225 Difference]: With dead ends: 707 [2020-07-18 00:17:48,547 INFO L226 Difference]: Without dead ends: 481 [2020-07-18 00:17:48,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:48,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-07-18 00:17:49,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2020-07-18 00:17:49,124 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:17:49,125 INFO L82 GeneralOperation]: Start isEquivalent. First operand 481 states. Second operand 479 states. [2020-07-18 00:17:49,125 INFO L74 IsIncluded]: Start isIncluded. First operand 481 states. Second operand 479 states. [2020-07-18 00:17:49,125 INFO L87 Difference]: Start difference. First operand 481 states. Second operand 479 states. [2020-07-18 00:17:49,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:49,144 INFO L93 Difference]: Finished difference Result 481 states and 651 transitions. [2020-07-18 00:17:49,144 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 651 transitions. [2020-07-18 00:17:49,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:17:49,145 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:17:49,145 INFO L74 IsIncluded]: Start isIncluded. First operand 479 states. Second operand 481 states. [2020-07-18 00:17:49,146 INFO L87 Difference]: Start difference. First operand 479 states. Second operand 481 states. [2020-07-18 00:17:49,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:49,163 INFO L93 Difference]: Finished difference Result 481 states and 651 transitions. [2020-07-18 00:17:49,163 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 651 transitions. [2020-07-18 00:17:49,164 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:17:49,164 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:17:49,165 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:17:49,165 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:17:49,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-07-18 00:17:49,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 650 transitions. [2020-07-18 00:17:49,182 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 650 transitions. Word has length 69 [2020-07-18 00:17:49,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:17:49,183 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 650 transitions. [2020-07-18 00:17:49,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:17:49,183 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 479 states and 650 transitions. [2020-07-18 00:17:49,827 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 650 edges. 650 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:49,828 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 650 transitions. [2020-07-18 00:17:49,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-18 00:17:49,829 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:17:49,829 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] [2020-07-18 00:17:49,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-18 00:17:49,830 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:17:49,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:17:49,830 INFO L82 PathProgramCache]: Analyzing trace with hash -8681195, now seen corresponding path program 1 times [2020-07-18 00:17:49,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:17:49,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108791408] [2020-07-18 00:17:49,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:17:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:49,899 INFO L280 TraceCheckUtils]: 0: Hoare triple {9348#true} assume true; {9348#true} is VALID [2020-07-18 00:17:49,899 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {9348#true} {9348#true} #247#return; {9348#true} is VALID [2020-07-18 00:17:49,900 INFO L263 TraceCheckUtils]: 0: Hoare triple {9348#true} call ULTIMATE.init(); {9348#true} is VALID [2020-07-18 00:17:49,900 INFO L280 TraceCheckUtils]: 1: Hoare triple {9348#true} assume true; {9348#true} is VALID [2020-07-18 00:17:49,900 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {9348#true} {9348#true} #247#return; {9348#true} is VALID [2020-07-18 00:17:49,900 INFO L263 TraceCheckUtils]: 3: Hoare triple {9348#true} call #t~ret10 := main(); {9348#true} is VALID [2020-07-18 00:17:49,901 INFO L280 TraceCheckUtils]: 4: Hoare triple {9348#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {9348#true} is VALID [2020-07-18 00:17:49,901 INFO L280 TraceCheckUtils]: 5: Hoare triple {9348#true} ~p1~0 := #t~nondet0; {9348#true} is VALID [2020-07-18 00:17:49,901 INFO L280 TraceCheckUtils]: 6: Hoare triple {9348#true} havoc #t~nondet0; {9348#true} is VALID [2020-07-18 00:17:49,901 INFO L280 TraceCheckUtils]: 7: Hoare triple {9348#true} havoc ~lk1~0; {9348#true} is VALID [2020-07-18 00:17:49,902 INFO L280 TraceCheckUtils]: 8: Hoare triple {9348#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {9348#true} is VALID [2020-07-18 00:17:49,902 INFO L280 TraceCheckUtils]: 9: Hoare triple {9348#true} ~p2~0 := #t~nondet1; {9348#true} is VALID [2020-07-18 00:17:49,902 INFO L280 TraceCheckUtils]: 10: Hoare triple {9348#true} havoc #t~nondet1; {9348#true} is VALID [2020-07-18 00:17:49,902 INFO L280 TraceCheckUtils]: 11: Hoare triple {9348#true} havoc ~lk2~0; {9348#true} is VALID [2020-07-18 00:17:49,903 INFO L280 TraceCheckUtils]: 12: Hoare triple {9348#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9348#true} is VALID [2020-07-18 00:17:49,903 INFO L280 TraceCheckUtils]: 13: Hoare triple {9348#true} ~p3~0 := #t~nondet2; {9348#true} is VALID [2020-07-18 00:17:49,903 INFO L280 TraceCheckUtils]: 14: Hoare triple {9348#true} havoc #t~nondet2; {9348#true} is VALID [2020-07-18 00:17:49,903 INFO L280 TraceCheckUtils]: 15: Hoare triple {9348#true} havoc ~lk3~0; {9348#true} is VALID [2020-07-18 00:17:49,904 INFO L280 TraceCheckUtils]: 16: Hoare triple {9348#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {9348#true} is VALID [2020-07-18 00:17:49,904 INFO L280 TraceCheckUtils]: 17: Hoare triple {9348#true} ~p4~0 := #t~nondet3; {9348#true} is VALID [2020-07-18 00:17:49,904 INFO L280 TraceCheckUtils]: 18: Hoare triple {9348#true} havoc #t~nondet3; {9348#true} is VALID [2020-07-18 00:17:49,904 INFO L280 TraceCheckUtils]: 19: Hoare triple {9348#true} havoc ~lk4~0; {9348#true} is VALID [2020-07-18 00:17:49,905 INFO L280 TraceCheckUtils]: 20: Hoare triple {9348#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {9348#true} is VALID [2020-07-18 00:17:49,905 INFO L280 TraceCheckUtils]: 21: Hoare triple {9348#true} ~p5~0 := #t~nondet4; {9348#true} is VALID [2020-07-18 00:17:49,905 INFO L280 TraceCheckUtils]: 22: Hoare triple {9348#true} havoc #t~nondet4; {9348#true} is VALID [2020-07-18 00:17:49,905 INFO L280 TraceCheckUtils]: 23: Hoare triple {9348#true} havoc ~lk5~0; {9348#true} is VALID [2020-07-18 00:17:49,906 INFO L280 TraceCheckUtils]: 24: Hoare triple {9348#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {9348#true} is VALID [2020-07-18 00:17:49,906 INFO L280 TraceCheckUtils]: 25: Hoare triple {9348#true} ~p6~0 := #t~nondet5; {9348#true} is VALID [2020-07-18 00:17:49,906 INFO L280 TraceCheckUtils]: 26: Hoare triple {9348#true} havoc #t~nondet5; {9348#true} is VALID [2020-07-18 00:17:49,906 INFO L280 TraceCheckUtils]: 27: Hoare triple {9348#true} havoc ~lk6~0; {9348#true} is VALID [2020-07-18 00:17:49,907 INFO L280 TraceCheckUtils]: 28: Hoare triple {9348#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {9348#true} is VALID [2020-07-18 00:17:49,907 INFO L280 TraceCheckUtils]: 29: Hoare triple {9348#true} ~p7~0 := #t~nondet6; {9348#true} is VALID [2020-07-18 00:17:49,907 INFO L280 TraceCheckUtils]: 30: Hoare triple {9348#true} havoc #t~nondet6; {9348#true} is VALID [2020-07-18 00:17:49,907 INFO L280 TraceCheckUtils]: 31: Hoare triple {9348#true} havoc ~lk7~0; {9348#true} is VALID [2020-07-18 00:17:49,908 INFO L280 TraceCheckUtils]: 32: Hoare triple {9348#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {9348#true} is VALID [2020-07-18 00:17:49,908 INFO L280 TraceCheckUtils]: 33: Hoare triple {9348#true} ~p8~0 := #t~nondet7; {9348#true} is VALID [2020-07-18 00:17:49,908 INFO L280 TraceCheckUtils]: 34: Hoare triple {9348#true} havoc #t~nondet7; {9348#true} is VALID [2020-07-18 00:17:49,908 INFO L280 TraceCheckUtils]: 35: Hoare triple {9348#true} havoc ~lk8~0; {9348#true} is VALID [2020-07-18 00:17:49,909 INFO L280 TraceCheckUtils]: 36: Hoare triple {9348#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {9348#true} is VALID [2020-07-18 00:17:49,909 INFO L280 TraceCheckUtils]: 37: Hoare triple {9348#true} ~p9~0 := #t~nondet8; {9348#true} is VALID [2020-07-18 00:17:49,909 INFO L280 TraceCheckUtils]: 38: Hoare triple {9348#true} havoc #t~nondet8; {9348#true} is VALID [2020-07-18 00:17:49,909 INFO L280 TraceCheckUtils]: 39: Hoare triple {9348#true} havoc ~lk9~0; {9348#true} is VALID [2020-07-18 00:17:49,910 INFO L280 TraceCheckUtils]: 40: Hoare triple {9348#true} havoc ~cond~0; {9348#true} is VALID [2020-07-18 00:17:49,910 INFO L280 TraceCheckUtils]: 41: Hoare triple {9348#true} assume !false; {9348#true} is VALID [2020-07-18 00:17:49,910 INFO L280 TraceCheckUtils]: 42: Hoare triple {9348#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {9348#true} is VALID [2020-07-18 00:17:49,910 INFO L280 TraceCheckUtils]: 43: Hoare triple {9348#true} ~cond~0 := #t~nondet9; {9348#true} is VALID [2020-07-18 00:17:49,911 INFO L280 TraceCheckUtils]: 44: Hoare triple {9348#true} havoc #t~nondet9; {9348#true} is VALID [2020-07-18 00:17:49,911 INFO L280 TraceCheckUtils]: 45: Hoare triple {9348#true} assume !(0 == ~cond~0); {9348#true} is VALID [2020-07-18 00:17:49,911 INFO L280 TraceCheckUtils]: 46: Hoare triple {9348#true} ~lk1~0 := 0; {9348#true} is VALID [2020-07-18 00:17:49,911 INFO L280 TraceCheckUtils]: 47: Hoare triple {9348#true} ~lk2~0 := 0; {9348#true} is VALID [2020-07-18 00:17:49,912 INFO L280 TraceCheckUtils]: 48: Hoare triple {9348#true} ~lk3~0 := 0; {9348#true} is VALID [2020-07-18 00:17:49,912 INFO L280 TraceCheckUtils]: 49: Hoare triple {9348#true} ~lk4~0 := 0; {9348#true} is VALID [2020-07-18 00:17:49,912 INFO L280 TraceCheckUtils]: 50: Hoare triple {9348#true} ~lk5~0 := 0; {9348#true} is VALID [2020-07-18 00:17:49,912 INFO L280 TraceCheckUtils]: 51: Hoare triple {9348#true} ~lk6~0 := 0; {9348#true} is VALID [2020-07-18 00:17:49,913 INFO L280 TraceCheckUtils]: 52: Hoare triple {9348#true} ~lk7~0 := 0; {9348#true} is VALID [2020-07-18 00:17:49,913 INFO L280 TraceCheckUtils]: 53: Hoare triple {9348#true} ~lk8~0 := 0; {9348#true} is VALID [2020-07-18 00:17:49,913 INFO L280 TraceCheckUtils]: 54: Hoare triple {9348#true} ~lk9~0 := 0; {9348#true} is VALID [2020-07-18 00:17:49,913 INFO L280 TraceCheckUtils]: 55: Hoare triple {9348#true} assume !(0 != ~p1~0); {9348#true} is VALID [2020-07-18 00:17:49,914 INFO L280 TraceCheckUtils]: 56: Hoare triple {9348#true} assume !(0 != ~p2~0); {9348#true} is VALID [2020-07-18 00:17:49,914 INFO L280 TraceCheckUtils]: 57: Hoare triple {9348#true} assume 0 != ~p3~0; {9348#true} is VALID [2020-07-18 00:17:49,915 INFO L280 TraceCheckUtils]: 58: Hoare triple {9348#true} ~lk3~0 := 1; {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 00:17:49,916 INFO L280 TraceCheckUtils]: 59: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p4~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 00:17:49,917 INFO L280 TraceCheckUtils]: 60: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p5~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 00:17:49,917 INFO L280 TraceCheckUtils]: 61: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p6~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 00:17:49,918 INFO L280 TraceCheckUtils]: 62: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p7~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 00:17:49,918 INFO L280 TraceCheckUtils]: 63: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p8~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 00:17:49,919 INFO L280 TraceCheckUtils]: 64: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p9~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 00:17:49,919 INFO L280 TraceCheckUtils]: 65: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p1~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 00:17:49,920 INFO L280 TraceCheckUtils]: 66: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p2~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 00:17:49,920 INFO L280 TraceCheckUtils]: 67: Hoare triple {9352#(= 1 main_~lk3~0)} assume 0 != ~p3~0; {9352#(= 1 main_~lk3~0)} is VALID [2020-07-18 00:17:49,921 INFO L280 TraceCheckUtils]: 68: Hoare triple {9352#(= 1 main_~lk3~0)} assume 1 != ~lk3~0; {9349#false} is VALID [2020-07-18 00:17:49,921 INFO L280 TraceCheckUtils]: 69: Hoare triple {9349#false} assume !false; {9349#false} is VALID [2020-07-18 00:17:49,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:17:49,925 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:17:49,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108791408] [2020-07-18 00:17:49,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:17:49,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:17:49,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423733278] [2020-07-18 00:17:49,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-18 00:17:49,926 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:17:49,926 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:17:49,980 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:49,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:17:49,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:17:49,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:17:49,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:49,981 INFO L87 Difference]: Start difference. First operand 479 states and 650 transitions. Second operand 3 states. [2020-07-18 00:17:51,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:51,090 INFO L93 Difference]: Finished difference Result 587 states and 804 transitions. [2020-07-18 00:17:51,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:17:51,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-18 00:17:51,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:17:51,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:17:51,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2020-07-18 00:17:51,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:17:51,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2020-07-18 00:17:51,097 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 193 transitions. [2020-07-18 00:17:51,255 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 193 edges. 193 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:51,280 INFO L225 Difference]: With dead ends: 587 [2020-07-18 00:17:51,280 INFO L226 Difference]: Without dead ends: 585 [2020-07-18 00:17:51,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:51,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-07-18 00:17:51,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 479. [2020-07-18 00:17:51,946 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:17:51,946 INFO L82 GeneralOperation]: Start isEquivalent. First operand 585 states. Second operand 479 states. [2020-07-18 00:17:51,947 INFO L74 IsIncluded]: Start isIncluded. First operand 585 states. Second operand 479 states. [2020-07-18 00:17:51,947 INFO L87 Difference]: Start difference. First operand 585 states. Second operand 479 states. [2020-07-18 00:17:51,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:51,968 INFO L93 Difference]: Finished difference Result 585 states and 799 transitions. [2020-07-18 00:17:51,969 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 799 transitions. [2020-07-18 00:17:51,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:17:51,970 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:17:51,970 INFO L74 IsIncluded]: Start isIncluded. First operand 479 states. Second operand 585 states. [2020-07-18 00:17:51,971 INFO L87 Difference]: Start difference. First operand 479 states. Second operand 585 states. [2020-07-18 00:17:51,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:51,995 INFO L93 Difference]: Finished difference Result 585 states and 799 transitions. [2020-07-18 00:17:51,996 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 799 transitions. [2020-07-18 00:17:51,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:17:51,997 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:17:51,997 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:17:51,997 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:17:51,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-07-18 00:17:52,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 646 transitions. [2020-07-18 00:17:52,016 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 646 transitions. Word has length 70 [2020-07-18 00:17:52,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:17:52,016 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 646 transitions. [2020-07-18 00:17:52,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:17:52,017 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 479 states and 646 transitions. [2020-07-18 00:17:52,667 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 646 edges. 646 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:52,667 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 646 transitions. [2020-07-18 00:17:52,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-18 00:17:52,668 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:17:52,669 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] [2020-07-18 00:17:52,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-18 00:17:52,670 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:17:52,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:17:52,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1023553130, now seen corresponding path program 1 times [2020-07-18 00:17:52,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:17:52,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424699328] [2020-07-18 00:17:52,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:17:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:52,714 INFO L280 TraceCheckUtils]: 0: Hoare triple {12657#true} assume true; {12657#true} is VALID [2020-07-18 00:17:52,714 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {12657#true} {12657#true} #247#return; {12657#true} is VALID [2020-07-18 00:17:52,714 INFO L263 TraceCheckUtils]: 0: Hoare triple {12657#true} call ULTIMATE.init(); {12657#true} is VALID [2020-07-18 00:17:52,715 INFO L280 TraceCheckUtils]: 1: Hoare triple {12657#true} assume true; {12657#true} is VALID [2020-07-18 00:17:52,715 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {12657#true} {12657#true} #247#return; {12657#true} is VALID [2020-07-18 00:17:52,715 INFO L263 TraceCheckUtils]: 3: Hoare triple {12657#true} call #t~ret10 := main(); {12657#true} is VALID [2020-07-18 00:17:52,715 INFO L280 TraceCheckUtils]: 4: Hoare triple {12657#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {12657#true} is VALID [2020-07-18 00:17:52,716 INFO L280 TraceCheckUtils]: 5: Hoare triple {12657#true} ~p1~0 := #t~nondet0; {12657#true} is VALID [2020-07-18 00:17:52,716 INFO L280 TraceCheckUtils]: 6: Hoare triple {12657#true} havoc #t~nondet0; {12657#true} is VALID [2020-07-18 00:17:52,716 INFO L280 TraceCheckUtils]: 7: Hoare triple {12657#true} havoc ~lk1~0; {12657#true} is VALID [2020-07-18 00:17:52,716 INFO L280 TraceCheckUtils]: 8: Hoare triple {12657#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {12657#true} is VALID [2020-07-18 00:17:52,717 INFO L280 TraceCheckUtils]: 9: Hoare triple {12657#true} ~p2~0 := #t~nondet1; {12657#true} is VALID [2020-07-18 00:17:52,717 INFO L280 TraceCheckUtils]: 10: Hoare triple {12657#true} havoc #t~nondet1; {12657#true} is VALID [2020-07-18 00:17:52,717 INFO L280 TraceCheckUtils]: 11: Hoare triple {12657#true} havoc ~lk2~0; {12657#true} is VALID [2020-07-18 00:17:52,717 INFO L280 TraceCheckUtils]: 12: Hoare triple {12657#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {12657#true} is VALID [2020-07-18 00:17:52,717 INFO L280 TraceCheckUtils]: 13: Hoare triple {12657#true} ~p3~0 := #t~nondet2; {12657#true} is VALID [2020-07-18 00:17:52,718 INFO L280 TraceCheckUtils]: 14: Hoare triple {12657#true} havoc #t~nondet2; {12657#true} is VALID [2020-07-18 00:17:52,718 INFO L280 TraceCheckUtils]: 15: Hoare triple {12657#true} havoc ~lk3~0; {12657#true} is VALID [2020-07-18 00:17:52,718 INFO L280 TraceCheckUtils]: 16: Hoare triple {12657#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {12657#true} is VALID [2020-07-18 00:17:52,718 INFO L280 TraceCheckUtils]: 17: Hoare triple {12657#true} ~p4~0 := #t~nondet3; {12657#true} is VALID [2020-07-18 00:17:52,718 INFO L280 TraceCheckUtils]: 18: Hoare triple {12657#true} havoc #t~nondet3; {12657#true} is VALID [2020-07-18 00:17:52,719 INFO L280 TraceCheckUtils]: 19: Hoare triple {12657#true} havoc ~lk4~0; {12657#true} is VALID [2020-07-18 00:17:52,719 INFO L280 TraceCheckUtils]: 20: Hoare triple {12657#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {12657#true} is VALID [2020-07-18 00:17:52,719 INFO L280 TraceCheckUtils]: 21: Hoare triple {12657#true} ~p5~0 := #t~nondet4; {12657#true} is VALID [2020-07-18 00:17:52,720 INFO L280 TraceCheckUtils]: 22: Hoare triple {12657#true} havoc #t~nondet4; {12657#true} is VALID [2020-07-18 00:17:52,720 INFO L280 TraceCheckUtils]: 23: Hoare triple {12657#true} havoc ~lk5~0; {12657#true} is VALID [2020-07-18 00:17:52,720 INFO L280 TraceCheckUtils]: 24: Hoare triple {12657#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {12657#true} is VALID [2020-07-18 00:17:52,720 INFO L280 TraceCheckUtils]: 25: Hoare triple {12657#true} ~p6~0 := #t~nondet5; {12657#true} is VALID [2020-07-18 00:17:52,721 INFO L280 TraceCheckUtils]: 26: Hoare triple {12657#true} havoc #t~nondet5; {12657#true} is VALID [2020-07-18 00:17:52,721 INFO L280 TraceCheckUtils]: 27: Hoare triple {12657#true} havoc ~lk6~0; {12657#true} is VALID [2020-07-18 00:17:52,721 INFO L280 TraceCheckUtils]: 28: Hoare triple {12657#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {12657#true} is VALID [2020-07-18 00:17:52,721 INFO L280 TraceCheckUtils]: 29: Hoare triple {12657#true} ~p7~0 := #t~nondet6; {12657#true} is VALID [2020-07-18 00:17:52,722 INFO L280 TraceCheckUtils]: 30: Hoare triple {12657#true} havoc #t~nondet6; {12657#true} is VALID [2020-07-18 00:17:52,722 INFO L280 TraceCheckUtils]: 31: Hoare triple {12657#true} havoc ~lk7~0; {12657#true} is VALID [2020-07-18 00:17:52,722 INFO L280 TraceCheckUtils]: 32: Hoare triple {12657#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {12657#true} is VALID [2020-07-18 00:17:52,722 INFO L280 TraceCheckUtils]: 33: Hoare triple {12657#true} ~p8~0 := #t~nondet7; {12657#true} is VALID [2020-07-18 00:17:52,723 INFO L280 TraceCheckUtils]: 34: Hoare triple {12657#true} havoc #t~nondet7; {12657#true} is VALID [2020-07-18 00:17:52,723 INFO L280 TraceCheckUtils]: 35: Hoare triple {12657#true} havoc ~lk8~0; {12657#true} is VALID [2020-07-18 00:17:52,723 INFO L280 TraceCheckUtils]: 36: Hoare triple {12657#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {12657#true} is VALID [2020-07-18 00:17:52,723 INFO L280 TraceCheckUtils]: 37: Hoare triple {12657#true} ~p9~0 := #t~nondet8; {12657#true} is VALID [2020-07-18 00:17:52,724 INFO L280 TraceCheckUtils]: 38: Hoare triple {12657#true} havoc #t~nondet8; {12657#true} is VALID [2020-07-18 00:17:52,724 INFO L280 TraceCheckUtils]: 39: Hoare triple {12657#true} havoc ~lk9~0; {12657#true} is VALID [2020-07-18 00:17:52,724 INFO L280 TraceCheckUtils]: 40: Hoare triple {12657#true} havoc ~cond~0; {12657#true} is VALID [2020-07-18 00:17:52,724 INFO L280 TraceCheckUtils]: 41: Hoare triple {12657#true} assume !false; {12657#true} is VALID [2020-07-18 00:17:52,725 INFO L280 TraceCheckUtils]: 42: Hoare triple {12657#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {12657#true} is VALID [2020-07-18 00:17:52,725 INFO L280 TraceCheckUtils]: 43: Hoare triple {12657#true} ~cond~0 := #t~nondet9; {12657#true} is VALID [2020-07-18 00:17:52,725 INFO L280 TraceCheckUtils]: 44: Hoare triple {12657#true} havoc #t~nondet9; {12657#true} is VALID [2020-07-18 00:17:52,726 INFO L280 TraceCheckUtils]: 45: Hoare triple {12657#true} assume !(0 == ~cond~0); {12657#true} is VALID [2020-07-18 00:17:52,726 INFO L280 TraceCheckUtils]: 46: Hoare triple {12657#true} ~lk1~0 := 0; {12657#true} is VALID [2020-07-18 00:17:52,726 INFO L280 TraceCheckUtils]: 47: Hoare triple {12657#true} ~lk2~0 := 0; {12657#true} is VALID [2020-07-18 00:17:52,726 INFO L280 TraceCheckUtils]: 48: Hoare triple {12657#true} ~lk3~0 := 0; {12657#true} is VALID [2020-07-18 00:17:52,727 INFO L280 TraceCheckUtils]: 49: Hoare triple {12657#true} ~lk4~0 := 0; {12657#true} is VALID [2020-07-18 00:17:52,727 INFO L280 TraceCheckUtils]: 50: Hoare triple {12657#true} ~lk5~0 := 0; {12657#true} is VALID [2020-07-18 00:17:52,727 INFO L280 TraceCheckUtils]: 51: Hoare triple {12657#true} ~lk6~0 := 0; {12657#true} is VALID [2020-07-18 00:17:52,727 INFO L280 TraceCheckUtils]: 52: Hoare triple {12657#true} ~lk7~0 := 0; {12657#true} is VALID [2020-07-18 00:17:52,727 INFO L280 TraceCheckUtils]: 53: Hoare triple {12657#true} ~lk8~0 := 0; {12657#true} is VALID [2020-07-18 00:17:52,728 INFO L280 TraceCheckUtils]: 54: Hoare triple {12657#true} ~lk9~0 := 0; {12657#true} is VALID [2020-07-18 00:17:52,728 INFO L280 TraceCheckUtils]: 55: Hoare triple {12657#true} assume !(0 != ~p1~0); {12657#true} is VALID [2020-07-18 00:17:52,728 INFO L280 TraceCheckUtils]: 56: Hoare triple {12657#true} assume !(0 != ~p2~0); {12657#true} is VALID [2020-07-18 00:17:52,729 INFO L280 TraceCheckUtils]: 57: Hoare triple {12657#true} assume !(0 != ~p3~0); {12657#true} is VALID [2020-07-18 00:17:52,729 INFO L280 TraceCheckUtils]: 58: Hoare triple {12657#true} assume !(0 != ~p4~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 00:17:52,730 INFO L280 TraceCheckUtils]: 59: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p5~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 00:17:52,731 INFO L280 TraceCheckUtils]: 60: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p6~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 00:17:52,731 INFO L280 TraceCheckUtils]: 61: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p7~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 00:17:52,732 INFO L280 TraceCheckUtils]: 62: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p8~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 00:17:52,732 INFO L280 TraceCheckUtils]: 63: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p9~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 00:17:52,733 INFO L280 TraceCheckUtils]: 64: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p1~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 00:17:52,734 INFO L280 TraceCheckUtils]: 65: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p2~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 00:17:52,734 INFO L280 TraceCheckUtils]: 66: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p3~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-18 00:17:52,739 INFO L280 TraceCheckUtils]: 67: Hoare triple {12661#(= 0 main_~p4~0)} assume 0 != ~p4~0; {12658#false} is VALID [2020-07-18 00:17:52,739 INFO L280 TraceCheckUtils]: 68: Hoare triple {12658#false} assume 1 != ~lk4~0; {12658#false} is VALID [2020-07-18 00:17:52,739 INFO L280 TraceCheckUtils]: 69: Hoare triple {12658#false} assume !false; {12658#false} is VALID [2020-07-18 00:17:52,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:17:52,746 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:17:52,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424699328] [2020-07-18 00:17:52,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:17:52,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:17:52,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906300361] [2020-07-18 00:17:52,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-18 00:17:52,747 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:17:52,748 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:17:52,826 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:52,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:17:52,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:17:52,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:17:52,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:52,827 INFO L87 Difference]: Start difference. First operand 479 states and 646 transitions. Second operand 3 states. [2020-07-18 00:17:54,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:54,846 INFO L93 Difference]: Finished difference Result 1331 states and 1824 transitions. [2020-07-18 00:17:54,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:17:54,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-18 00:17:54,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:17:54,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:17:54,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2020-07-18 00:17:54,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:17:54,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2020-07-18 00:17:54,856 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 289 transitions. [2020-07-18 00:17:55,147 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 289 edges. 289 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:55,210 INFO L225 Difference]: With dead ends: 1331 [2020-07-18 00:17:55,210 INFO L226 Difference]: Without dead ends: 893 [2020-07-18 00:17:55,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:55,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-07-18 00:17:56,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 891. [2020-07-18 00:17:56,681 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:17:56,681 INFO L82 GeneralOperation]: Start isEquivalent. First operand 893 states. Second operand 891 states. [2020-07-18 00:17:56,681 INFO L74 IsIncluded]: Start isIncluded. First operand 893 states. Second operand 891 states. [2020-07-18 00:17:56,682 INFO L87 Difference]: Start difference. First operand 893 states. Second operand 891 states. [2020-07-18 00:17:56,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:56,728 INFO L93 Difference]: Finished difference Result 893 states and 1203 transitions. [2020-07-18 00:17:56,728 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1203 transitions. [2020-07-18 00:17:56,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:17:56,730 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:17:56,730 INFO L74 IsIncluded]: Start isIncluded. First operand 891 states. Second operand 893 states. [2020-07-18 00:17:56,730 INFO L87 Difference]: Start difference. First operand 891 states. Second operand 893 states. [2020-07-18 00:17:56,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:17:56,776 INFO L93 Difference]: Finished difference Result 893 states and 1203 transitions. [2020-07-18 00:17:56,776 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1203 transitions. [2020-07-18 00:17:56,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:17:56,779 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:17:56,779 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:17:56,779 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:17:56,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-07-18 00:17:56,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1202 transitions. [2020-07-18 00:17:56,832 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1202 transitions. Word has length 70 [2020-07-18 00:17:56,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:17:56,832 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1202 transitions. [2020-07-18 00:17:56,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:17:56,832 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 891 states and 1202 transitions. [2020-07-18 00:17:58,416 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 1202 edges. 1202 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:58,416 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1202 transitions. [2020-07-18 00:17:58,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-18 00:17:58,418 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:17:58,419 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] [2020-07-18 00:17:58,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-18 00:17:58,419 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:17:58,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:17:58,420 INFO L82 PathProgramCache]: Analyzing trace with hash 490835914, now seen corresponding path program 1 times [2020-07-18 00:17:58,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:17:58,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031862074] [2020-07-18 00:17:58,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:17:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:17:58,479 INFO L280 TraceCheckUtils]: 0: Hoare triple {18894#true} assume true; {18894#true} is VALID [2020-07-18 00:17:58,480 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {18894#true} {18894#true} #247#return; {18894#true} is VALID [2020-07-18 00:17:58,480 INFO L263 TraceCheckUtils]: 0: Hoare triple {18894#true} call ULTIMATE.init(); {18894#true} is VALID [2020-07-18 00:17:58,481 INFO L280 TraceCheckUtils]: 1: Hoare triple {18894#true} assume true; {18894#true} is VALID [2020-07-18 00:17:58,481 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {18894#true} {18894#true} #247#return; {18894#true} is VALID [2020-07-18 00:17:58,481 INFO L263 TraceCheckUtils]: 3: Hoare triple {18894#true} call #t~ret10 := main(); {18894#true} is VALID [2020-07-18 00:17:58,482 INFO L280 TraceCheckUtils]: 4: Hoare triple {18894#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {18894#true} is VALID [2020-07-18 00:17:58,482 INFO L280 TraceCheckUtils]: 5: Hoare triple {18894#true} ~p1~0 := #t~nondet0; {18894#true} is VALID [2020-07-18 00:17:58,482 INFO L280 TraceCheckUtils]: 6: Hoare triple {18894#true} havoc #t~nondet0; {18894#true} is VALID [2020-07-18 00:17:58,482 INFO L280 TraceCheckUtils]: 7: Hoare triple {18894#true} havoc ~lk1~0; {18894#true} is VALID [2020-07-18 00:17:58,483 INFO L280 TraceCheckUtils]: 8: Hoare triple {18894#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {18894#true} is VALID [2020-07-18 00:17:58,483 INFO L280 TraceCheckUtils]: 9: Hoare triple {18894#true} ~p2~0 := #t~nondet1; {18894#true} is VALID [2020-07-18 00:17:58,483 INFO L280 TraceCheckUtils]: 10: Hoare triple {18894#true} havoc #t~nondet1; {18894#true} is VALID [2020-07-18 00:17:58,484 INFO L280 TraceCheckUtils]: 11: Hoare triple {18894#true} havoc ~lk2~0; {18894#true} is VALID [2020-07-18 00:17:58,484 INFO L280 TraceCheckUtils]: 12: Hoare triple {18894#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {18894#true} is VALID [2020-07-18 00:17:58,485 INFO L280 TraceCheckUtils]: 13: Hoare triple {18894#true} ~p3~0 := #t~nondet2; {18894#true} is VALID [2020-07-18 00:17:58,491 INFO L280 TraceCheckUtils]: 14: Hoare triple {18894#true} havoc #t~nondet2; {18894#true} is VALID [2020-07-18 00:17:58,491 INFO L280 TraceCheckUtils]: 15: Hoare triple {18894#true} havoc ~lk3~0; {18894#true} is VALID [2020-07-18 00:17:58,494 INFO L280 TraceCheckUtils]: 16: Hoare triple {18894#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {18894#true} is VALID [2020-07-18 00:17:58,495 INFO L280 TraceCheckUtils]: 17: Hoare triple {18894#true} ~p4~0 := #t~nondet3; {18894#true} is VALID [2020-07-18 00:17:58,495 INFO L280 TraceCheckUtils]: 18: Hoare triple {18894#true} havoc #t~nondet3; {18894#true} is VALID [2020-07-18 00:17:58,495 INFO L280 TraceCheckUtils]: 19: Hoare triple {18894#true} havoc ~lk4~0; {18894#true} is VALID [2020-07-18 00:17:58,496 INFO L280 TraceCheckUtils]: 20: Hoare triple {18894#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {18894#true} is VALID [2020-07-18 00:17:58,496 INFO L280 TraceCheckUtils]: 21: Hoare triple {18894#true} ~p5~0 := #t~nondet4; {18894#true} is VALID [2020-07-18 00:17:58,496 INFO L280 TraceCheckUtils]: 22: Hoare triple {18894#true} havoc #t~nondet4; {18894#true} is VALID [2020-07-18 00:17:58,497 INFO L280 TraceCheckUtils]: 23: Hoare triple {18894#true} havoc ~lk5~0; {18894#true} is VALID [2020-07-18 00:17:58,497 INFO L280 TraceCheckUtils]: 24: Hoare triple {18894#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {18894#true} is VALID [2020-07-18 00:17:58,499 INFO L280 TraceCheckUtils]: 25: Hoare triple {18894#true} ~p6~0 := #t~nondet5; {18894#true} is VALID [2020-07-18 00:17:58,500 INFO L280 TraceCheckUtils]: 26: Hoare triple {18894#true} havoc #t~nondet5; {18894#true} is VALID [2020-07-18 00:17:58,500 INFO L280 TraceCheckUtils]: 27: Hoare triple {18894#true} havoc ~lk6~0; {18894#true} is VALID [2020-07-18 00:17:58,500 INFO L280 TraceCheckUtils]: 28: Hoare triple {18894#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {18894#true} is VALID [2020-07-18 00:17:58,500 INFO L280 TraceCheckUtils]: 29: Hoare triple {18894#true} ~p7~0 := #t~nondet6; {18894#true} is VALID [2020-07-18 00:17:58,501 INFO L280 TraceCheckUtils]: 30: Hoare triple {18894#true} havoc #t~nondet6; {18894#true} is VALID [2020-07-18 00:17:58,501 INFO L280 TraceCheckUtils]: 31: Hoare triple {18894#true} havoc ~lk7~0; {18894#true} is VALID [2020-07-18 00:17:58,501 INFO L280 TraceCheckUtils]: 32: Hoare triple {18894#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {18894#true} is VALID [2020-07-18 00:17:58,502 INFO L280 TraceCheckUtils]: 33: Hoare triple {18894#true} ~p8~0 := #t~nondet7; {18894#true} is VALID [2020-07-18 00:17:58,502 INFO L280 TraceCheckUtils]: 34: Hoare triple {18894#true} havoc #t~nondet7; {18894#true} is VALID [2020-07-18 00:17:58,502 INFO L280 TraceCheckUtils]: 35: Hoare triple {18894#true} havoc ~lk8~0; {18894#true} is VALID [2020-07-18 00:17:58,503 INFO L280 TraceCheckUtils]: 36: Hoare triple {18894#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {18894#true} is VALID [2020-07-18 00:17:58,503 INFO L280 TraceCheckUtils]: 37: Hoare triple {18894#true} ~p9~0 := #t~nondet8; {18894#true} is VALID [2020-07-18 00:17:58,503 INFO L280 TraceCheckUtils]: 38: Hoare triple {18894#true} havoc #t~nondet8; {18894#true} is VALID [2020-07-18 00:17:58,504 INFO L280 TraceCheckUtils]: 39: Hoare triple {18894#true} havoc ~lk9~0; {18894#true} is VALID [2020-07-18 00:17:58,504 INFO L280 TraceCheckUtils]: 40: Hoare triple {18894#true} havoc ~cond~0; {18894#true} is VALID [2020-07-18 00:17:58,504 INFO L280 TraceCheckUtils]: 41: Hoare triple {18894#true} assume !false; {18894#true} is VALID [2020-07-18 00:17:58,505 INFO L280 TraceCheckUtils]: 42: Hoare triple {18894#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {18894#true} is VALID [2020-07-18 00:17:58,505 INFO L280 TraceCheckUtils]: 43: Hoare triple {18894#true} ~cond~0 := #t~nondet9; {18894#true} is VALID [2020-07-18 00:17:58,505 INFO L280 TraceCheckUtils]: 44: Hoare triple {18894#true} havoc #t~nondet9; {18894#true} is VALID [2020-07-18 00:17:58,506 INFO L280 TraceCheckUtils]: 45: Hoare triple {18894#true} assume !(0 == ~cond~0); {18894#true} is VALID [2020-07-18 00:17:58,506 INFO L280 TraceCheckUtils]: 46: Hoare triple {18894#true} ~lk1~0 := 0; {18894#true} is VALID [2020-07-18 00:17:58,506 INFO L280 TraceCheckUtils]: 47: Hoare triple {18894#true} ~lk2~0 := 0; {18894#true} is VALID [2020-07-18 00:17:58,507 INFO L280 TraceCheckUtils]: 48: Hoare triple {18894#true} ~lk3~0 := 0; {18894#true} is VALID [2020-07-18 00:17:58,507 INFO L280 TraceCheckUtils]: 49: Hoare triple {18894#true} ~lk4~0 := 0; {18894#true} is VALID [2020-07-18 00:17:58,507 INFO L280 TraceCheckUtils]: 50: Hoare triple {18894#true} ~lk5~0 := 0; {18894#true} is VALID [2020-07-18 00:17:58,508 INFO L280 TraceCheckUtils]: 51: Hoare triple {18894#true} ~lk6~0 := 0; {18894#true} is VALID [2020-07-18 00:17:58,508 INFO L280 TraceCheckUtils]: 52: Hoare triple {18894#true} ~lk7~0 := 0; {18894#true} is VALID [2020-07-18 00:17:58,508 INFO L280 TraceCheckUtils]: 53: Hoare triple {18894#true} ~lk8~0 := 0; {18894#true} is VALID [2020-07-18 00:17:58,509 INFO L280 TraceCheckUtils]: 54: Hoare triple {18894#true} ~lk9~0 := 0; {18894#true} is VALID [2020-07-18 00:17:58,509 INFO L280 TraceCheckUtils]: 55: Hoare triple {18894#true} assume !(0 != ~p1~0); {18894#true} is VALID [2020-07-18 00:17:58,509 INFO L280 TraceCheckUtils]: 56: Hoare triple {18894#true} assume !(0 != ~p2~0); {18894#true} is VALID [2020-07-18 00:17:58,509 INFO L280 TraceCheckUtils]: 57: Hoare triple {18894#true} assume !(0 != ~p3~0); {18894#true} is VALID [2020-07-18 00:17:58,510 INFO L280 TraceCheckUtils]: 58: Hoare triple {18894#true} assume 0 != ~p4~0; {18894#true} is VALID [2020-07-18 00:17:58,511 INFO L280 TraceCheckUtils]: 59: Hoare triple {18894#true} ~lk4~0 := 1; {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 00:17:58,512 INFO L280 TraceCheckUtils]: 60: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p5~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 00:17:58,512 INFO L280 TraceCheckUtils]: 61: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p6~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 00:17:58,513 INFO L280 TraceCheckUtils]: 62: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p7~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 00:17:58,514 INFO L280 TraceCheckUtils]: 63: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p8~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 00:17:58,516 INFO L280 TraceCheckUtils]: 64: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p9~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 00:17:58,516 INFO L280 TraceCheckUtils]: 65: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p1~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 00:17:58,517 INFO L280 TraceCheckUtils]: 66: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p2~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 00:17:58,518 INFO L280 TraceCheckUtils]: 67: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p3~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 00:17:58,519 INFO L280 TraceCheckUtils]: 68: Hoare triple {18898#(= 1 main_~lk4~0)} assume 0 != ~p4~0; {18898#(= 1 main_~lk4~0)} is VALID [2020-07-18 00:17:58,520 INFO L280 TraceCheckUtils]: 69: Hoare triple {18898#(= 1 main_~lk4~0)} assume 1 != ~lk4~0; {18895#false} is VALID [2020-07-18 00:17:58,520 INFO L280 TraceCheckUtils]: 70: Hoare triple {18895#false} assume !false; {18895#false} is VALID [2020-07-18 00:17:58,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:17:58,527 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:17:58,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031862074] [2020-07-18 00:17:58,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:17:58,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:17:58,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468969476] [2020-07-18 00:17:58,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-18 00:17:58,529 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:17:58,529 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:17:58,620 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:17:58,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:17:58,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:17:58,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:17:58,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:17:58,621 INFO L87 Difference]: Start difference. First operand 891 states and 1202 transitions. Second operand 3 states. [2020-07-18 00:18:00,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:18:00,775 INFO L93 Difference]: Finished difference Result 1087 states and 1476 transitions. [2020-07-18 00:18:00,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:18:00,775 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-18 00:18:00,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:18:00,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:18:00,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2020-07-18 00:18:00,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:18:00,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2020-07-18 00:18:00,779 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 189 transitions. [2020-07-18 00:18:00,948 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:18:00,995 INFO L225 Difference]: With dead ends: 1087 [2020-07-18 00:18:00,995 INFO L226 Difference]: Without dead ends: 1085 [2020-07-18 00:18:00,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:18:00,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2020-07-18 00:18:02,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 891. [2020-07-18 00:18:02,578 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:18:02,578 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1085 states. Second operand 891 states. [2020-07-18 00:18:02,578 INFO L74 IsIncluded]: Start isIncluded. First operand 1085 states. Second operand 891 states. [2020-07-18 00:18:02,578 INFO L87 Difference]: Start difference. First operand 1085 states. Second operand 891 states. [2020-07-18 00:18:02,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:18:02,620 INFO L93 Difference]: Finished difference Result 1085 states and 1467 transitions. [2020-07-18 00:18:02,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1467 transitions. [2020-07-18 00:18:02,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:18:02,622 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:18:02,622 INFO L74 IsIncluded]: Start isIncluded. First operand 891 states. Second operand 1085 states. [2020-07-18 00:18:02,622 INFO L87 Difference]: Start difference. First operand 891 states. Second operand 1085 states. [2020-07-18 00:18:02,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:18:02,684 INFO L93 Difference]: Finished difference Result 1085 states and 1467 transitions. [2020-07-18 00:18:02,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1467 transitions. [2020-07-18 00:18:02,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:18:02,687 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:18:02,687 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:18:02,687 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:18:02,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-07-18 00:18:02,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1194 transitions. [2020-07-18 00:18:02,730 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1194 transitions. Word has length 71 [2020-07-18 00:18:02,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:18:02,731 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1194 transitions. [2020-07-18 00:18:02,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:18:02,731 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 891 states and 1194 transitions. [2020-07-18 00:18:04,162 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 1194 edges. 1194 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:18:04,162 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1194 transitions. [2020-07-18 00:18:04,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-18 00:18:04,164 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:18:04,165 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] [2020-07-18 00:18:04,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-18 00:18:04,165 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:18:04,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:18:04,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1665621348, now seen corresponding path program 1 times [2020-07-18 00:18:04,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:18:04,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160428048] [2020-07-18 00:18:04,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:18:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:18:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:18:04,214 INFO L280 TraceCheckUtils]: 0: Hoare triple {25027#true} assume true; {25027#true} is VALID [2020-07-18 00:18:04,215 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {25027#true} {25027#true} #247#return; {25027#true} is VALID [2020-07-18 00:18:04,215 INFO L263 TraceCheckUtils]: 0: Hoare triple {25027#true} call ULTIMATE.init(); {25027#true} is VALID [2020-07-18 00:18:04,215 INFO L280 TraceCheckUtils]: 1: Hoare triple {25027#true} assume true; {25027#true} is VALID [2020-07-18 00:18:04,215 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {25027#true} {25027#true} #247#return; {25027#true} is VALID [2020-07-18 00:18:04,216 INFO L263 TraceCheckUtils]: 3: Hoare triple {25027#true} call #t~ret10 := main(); {25027#true} is VALID [2020-07-18 00:18:04,216 INFO L280 TraceCheckUtils]: 4: Hoare triple {25027#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {25027#true} is VALID [2020-07-18 00:18:04,216 INFO L280 TraceCheckUtils]: 5: Hoare triple {25027#true} ~p1~0 := #t~nondet0; {25027#true} is VALID [2020-07-18 00:18:04,216 INFO L280 TraceCheckUtils]: 6: Hoare triple {25027#true} havoc #t~nondet0; {25027#true} is VALID [2020-07-18 00:18:04,217 INFO L280 TraceCheckUtils]: 7: Hoare triple {25027#true} havoc ~lk1~0; {25027#true} is VALID [2020-07-18 00:18:04,217 INFO L280 TraceCheckUtils]: 8: Hoare triple {25027#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {25027#true} is VALID [2020-07-18 00:18:04,217 INFO L280 TraceCheckUtils]: 9: Hoare triple {25027#true} ~p2~0 := #t~nondet1; {25027#true} is VALID [2020-07-18 00:18:04,217 INFO L280 TraceCheckUtils]: 10: Hoare triple {25027#true} havoc #t~nondet1; {25027#true} is VALID [2020-07-18 00:18:04,217 INFO L280 TraceCheckUtils]: 11: Hoare triple {25027#true} havoc ~lk2~0; {25027#true} is VALID [2020-07-18 00:18:04,218 INFO L280 TraceCheckUtils]: 12: Hoare triple {25027#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {25027#true} is VALID [2020-07-18 00:18:04,218 INFO L280 TraceCheckUtils]: 13: Hoare triple {25027#true} ~p3~0 := #t~nondet2; {25027#true} is VALID [2020-07-18 00:18:04,218 INFO L280 TraceCheckUtils]: 14: Hoare triple {25027#true} havoc #t~nondet2; {25027#true} is VALID [2020-07-18 00:18:04,218 INFO L280 TraceCheckUtils]: 15: Hoare triple {25027#true} havoc ~lk3~0; {25027#true} is VALID [2020-07-18 00:18:04,219 INFO L280 TraceCheckUtils]: 16: Hoare triple {25027#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {25027#true} is VALID [2020-07-18 00:18:04,219 INFO L280 TraceCheckUtils]: 17: Hoare triple {25027#true} ~p4~0 := #t~nondet3; {25027#true} is VALID [2020-07-18 00:18:04,219 INFO L280 TraceCheckUtils]: 18: Hoare triple {25027#true} havoc #t~nondet3; {25027#true} is VALID [2020-07-18 00:18:04,219 INFO L280 TraceCheckUtils]: 19: Hoare triple {25027#true} havoc ~lk4~0; {25027#true} is VALID [2020-07-18 00:18:04,219 INFO L280 TraceCheckUtils]: 20: Hoare triple {25027#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {25027#true} is VALID [2020-07-18 00:18:04,220 INFO L280 TraceCheckUtils]: 21: Hoare triple {25027#true} ~p5~0 := #t~nondet4; {25027#true} is VALID [2020-07-18 00:18:04,220 INFO L280 TraceCheckUtils]: 22: Hoare triple {25027#true} havoc #t~nondet4; {25027#true} is VALID [2020-07-18 00:18:04,220 INFO L280 TraceCheckUtils]: 23: Hoare triple {25027#true} havoc ~lk5~0; {25027#true} is VALID [2020-07-18 00:18:04,220 INFO L280 TraceCheckUtils]: 24: Hoare triple {25027#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {25027#true} is VALID [2020-07-18 00:18:04,220 INFO L280 TraceCheckUtils]: 25: Hoare triple {25027#true} ~p6~0 := #t~nondet5; {25027#true} is VALID [2020-07-18 00:18:04,221 INFO L280 TraceCheckUtils]: 26: Hoare triple {25027#true} havoc #t~nondet5; {25027#true} is VALID [2020-07-18 00:18:04,221 INFO L280 TraceCheckUtils]: 27: Hoare triple {25027#true} havoc ~lk6~0; {25027#true} is VALID [2020-07-18 00:18:04,221 INFO L280 TraceCheckUtils]: 28: Hoare triple {25027#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {25027#true} is VALID [2020-07-18 00:18:04,221 INFO L280 TraceCheckUtils]: 29: Hoare triple {25027#true} ~p7~0 := #t~nondet6; {25027#true} is VALID [2020-07-18 00:18:04,221 INFO L280 TraceCheckUtils]: 30: Hoare triple {25027#true} havoc #t~nondet6; {25027#true} is VALID [2020-07-18 00:18:04,222 INFO L280 TraceCheckUtils]: 31: Hoare triple {25027#true} havoc ~lk7~0; {25027#true} is VALID [2020-07-18 00:18:04,222 INFO L280 TraceCheckUtils]: 32: Hoare triple {25027#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {25027#true} is VALID [2020-07-18 00:18:04,222 INFO L280 TraceCheckUtils]: 33: Hoare triple {25027#true} ~p8~0 := #t~nondet7; {25027#true} is VALID [2020-07-18 00:18:04,222 INFO L280 TraceCheckUtils]: 34: Hoare triple {25027#true} havoc #t~nondet7; {25027#true} is VALID [2020-07-18 00:18:04,222 INFO L280 TraceCheckUtils]: 35: Hoare triple {25027#true} havoc ~lk8~0; {25027#true} is VALID [2020-07-18 00:18:04,223 INFO L280 TraceCheckUtils]: 36: Hoare triple {25027#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {25027#true} is VALID [2020-07-18 00:18:04,223 INFO L280 TraceCheckUtils]: 37: Hoare triple {25027#true} ~p9~0 := #t~nondet8; {25027#true} is VALID [2020-07-18 00:18:04,223 INFO L280 TraceCheckUtils]: 38: Hoare triple {25027#true} havoc #t~nondet8; {25027#true} is VALID [2020-07-18 00:18:04,223 INFO L280 TraceCheckUtils]: 39: Hoare triple {25027#true} havoc ~lk9~0; {25027#true} is VALID [2020-07-18 00:18:04,223 INFO L280 TraceCheckUtils]: 40: Hoare triple {25027#true} havoc ~cond~0; {25027#true} is VALID [2020-07-18 00:18:04,224 INFO L280 TraceCheckUtils]: 41: Hoare triple {25027#true} assume !false; {25027#true} is VALID [2020-07-18 00:18:04,224 INFO L280 TraceCheckUtils]: 42: Hoare triple {25027#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {25027#true} is VALID [2020-07-18 00:18:04,224 INFO L280 TraceCheckUtils]: 43: Hoare triple {25027#true} ~cond~0 := #t~nondet9; {25027#true} is VALID [2020-07-18 00:18:04,224 INFO L280 TraceCheckUtils]: 44: Hoare triple {25027#true} havoc #t~nondet9; {25027#true} is VALID [2020-07-18 00:18:04,224 INFO L280 TraceCheckUtils]: 45: Hoare triple {25027#true} assume !(0 == ~cond~0); {25027#true} is VALID [2020-07-18 00:18:04,225 INFO L280 TraceCheckUtils]: 46: Hoare triple {25027#true} ~lk1~0 := 0; {25027#true} is VALID [2020-07-18 00:18:04,225 INFO L280 TraceCheckUtils]: 47: Hoare triple {25027#true} ~lk2~0 := 0; {25027#true} is VALID [2020-07-18 00:18:04,225 INFO L280 TraceCheckUtils]: 48: Hoare triple {25027#true} ~lk3~0 := 0; {25027#true} is VALID [2020-07-18 00:18:04,225 INFO L280 TraceCheckUtils]: 49: Hoare triple {25027#true} ~lk4~0 := 0; {25027#true} is VALID [2020-07-18 00:18:04,225 INFO L280 TraceCheckUtils]: 50: Hoare triple {25027#true} ~lk5~0 := 0; {25027#true} is VALID [2020-07-18 00:18:04,226 INFO L280 TraceCheckUtils]: 51: Hoare triple {25027#true} ~lk6~0 := 0; {25027#true} is VALID [2020-07-18 00:18:04,226 INFO L280 TraceCheckUtils]: 52: Hoare triple {25027#true} ~lk7~0 := 0; {25027#true} is VALID [2020-07-18 00:18:04,226 INFO L280 TraceCheckUtils]: 53: Hoare triple {25027#true} ~lk8~0 := 0; {25027#true} is VALID [2020-07-18 00:18:04,226 INFO L280 TraceCheckUtils]: 54: Hoare triple {25027#true} ~lk9~0 := 0; {25027#true} is VALID [2020-07-18 00:18:04,226 INFO L280 TraceCheckUtils]: 55: Hoare triple {25027#true} assume !(0 != ~p1~0); {25027#true} is VALID [2020-07-18 00:18:04,227 INFO L280 TraceCheckUtils]: 56: Hoare triple {25027#true} assume !(0 != ~p2~0); {25027#true} is VALID [2020-07-18 00:18:04,227 INFO L280 TraceCheckUtils]: 57: Hoare triple {25027#true} assume !(0 != ~p3~0); {25027#true} is VALID [2020-07-18 00:18:04,227 INFO L280 TraceCheckUtils]: 58: Hoare triple {25027#true} assume !(0 != ~p4~0); {25027#true} is VALID [2020-07-18 00:18:04,228 INFO L280 TraceCheckUtils]: 59: Hoare triple {25027#true} assume !(0 != ~p5~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 00:18:04,228 INFO L280 TraceCheckUtils]: 60: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p6~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 00:18:04,229 INFO L280 TraceCheckUtils]: 61: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p7~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 00:18:04,229 INFO L280 TraceCheckUtils]: 62: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p8~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 00:18:04,230 INFO L280 TraceCheckUtils]: 63: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p9~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 00:18:04,230 INFO L280 TraceCheckUtils]: 64: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p1~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 00:18:04,231 INFO L280 TraceCheckUtils]: 65: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p2~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 00:18:04,232 INFO L280 TraceCheckUtils]: 66: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p3~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 00:18:04,232 INFO L280 TraceCheckUtils]: 67: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p4~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-18 00:18:04,233 INFO L280 TraceCheckUtils]: 68: Hoare triple {25031#(= 0 main_~p5~0)} assume 0 != ~p5~0; {25028#false} is VALID [2020-07-18 00:18:04,233 INFO L280 TraceCheckUtils]: 69: Hoare triple {25028#false} assume 1 != ~lk5~0; {25028#false} is VALID [2020-07-18 00:18:04,233 INFO L280 TraceCheckUtils]: 70: Hoare triple {25028#false} assume !false; {25028#false} is VALID [2020-07-18 00:18:04,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:18:04,237 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:18:04,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160428048] [2020-07-18 00:18:04,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:18:04,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:18:04,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098609064] [2020-07-18 00:18:04,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-18 00:18:04,238 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:18:04,238 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:18:04,297 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:18:04,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:18:04,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:18:04,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:18:04,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:18:04,298 INFO L87 Difference]: Start difference. First operand 891 states and 1194 transitions. Second operand 3 states. [2020-07-18 00:18:08,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:18:08,379 INFO L93 Difference]: Finished difference Result 2543 states and 3436 transitions. [2020-07-18 00:18:08,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:18:08,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-18 00:18:08,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:18:08,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:18:08,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-18 00:18:08,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:18:08,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-18 00:18:08,382 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 286 transitions. [2020-07-18 00:18:08,642 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 286 edges. 286 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:18:08,749 INFO L225 Difference]: With dead ends: 2543 [2020-07-18 00:18:08,749 INFO L226 Difference]: Without dead ends: 1693 [2020-07-18 00:18:08,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:18:08,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2020-07-18 00:18:12,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1691. [2020-07-18 00:18:12,209 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:18:12,209 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1693 states. Second operand 1691 states. [2020-07-18 00:18:12,210 INFO L74 IsIncluded]: Start isIncluded. First operand 1693 states. Second operand 1691 states. [2020-07-18 00:18:12,210 INFO L87 Difference]: Start difference. First operand 1693 states. Second operand 1691 states. [2020-07-18 00:18:12,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:18:12,303 INFO L93 Difference]: Finished difference Result 1693 states and 2251 transitions. [2020-07-18 00:18:12,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2251 transitions. [2020-07-18 00:18:12,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:18:12,306 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:18:12,306 INFO L74 IsIncluded]: Start isIncluded. First operand 1691 states. Second operand 1693 states. [2020-07-18 00:18:12,306 INFO L87 Difference]: Start difference. First operand 1691 states. Second operand 1693 states. [2020-07-18 00:18:12,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:18:12,406 INFO L93 Difference]: Finished difference Result 1693 states and 2251 transitions. [2020-07-18 00:18:12,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2251 transitions. [2020-07-18 00:18:12,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:18:12,409 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:18:12,409 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:18:12,409 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:18:12,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-07-18 00:18:12,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2250 transitions. [2020-07-18 00:18:12,521 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2250 transitions. Word has length 71 [2020-07-18 00:18:12,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:18:12,521 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2250 transitions. [2020-07-18 00:18:12,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:18:12,521 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 1691 states and 2250 transitions. [2020-07-18 00:18:15,355 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2250 edges. 2250 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:18:15,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2250 transitions. [2020-07-18 00:18:15,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-07-18 00:18:15,358 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:18:15,358 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] [2020-07-18 00:18:15,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-18 00:18:15,359 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:18:15,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:18:15,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1204002519, now seen corresponding path program 1 times [2020-07-18 00:18:15,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:18:15,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322946211] [2020-07-18 00:18:15,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:18:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:18:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:18:15,408 INFO L280 TraceCheckUtils]: 0: Hoare triple {36888#true} assume true; {36888#true} is VALID [2020-07-18 00:18:15,409 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {36888#true} {36888#true} #247#return; {36888#true} is VALID [2020-07-18 00:18:15,409 INFO L263 TraceCheckUtils]: 0: Hoare triple {36888#true} call ULTIMATE.init(); {36888#true} is VALID [2020-07-18 00:18:15,409 INFO L280 TraceCheckUtils]: 1: Hoare triple {36888#true} assume true; {36888#true} is VALID [2020-07-18 00:18:15,409 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36888#true} {36888#true} #247#return; {36888#true} is VALID [2020-07-18 00:18:15,409 INFO L263 TraceCheckUtils]: 3: Hoare triple {36888#true} call #t~ret10 := main(); {36888#true} is VALID [2020-07-18 00:18:15,410 INFO L280 TraceCheckUtils]: 4: Hoare triple {36888#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {36888#true} is VALID [2020-07-18 00:18:15,410 INFO L280 TraceCheckUtils]: 5: Hoare triple {36888#true} ~p1~0 := #t~nondet0; {36888#true} is VALID [2020-07-18 00:18:15,410 INFO L280 TraceCheckUtils]: 6: Hoare triple {36888#true} havoc #t~nondet0; {36888#true} is VALID [2020-07-18 00:18:15,410 INFO L280 TraceCheckUtils]: 7: Hoare triple {36888#true} havoc ~lk1~0; {36888#true} is VALID [2020-07-18 00:18:15,410 INFO L280 TraceCheckUtils]: 8: Hoare triple {36888#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {36888#true} is VALID [2020-07-18 00:18:15,411 INFO L280 TraceCheckUtils]: 9: Hoare triple {36888#true} ~p2~0 := #t~nondet1; {36888#true} is VALID [2020-07-18 00:18:15,411 INFO L280 TraceCheckUtils]: 10: Hoare triple {36888#true} havoc #t~nondet1; {36888#true} is VALID [2020-07-18 00:18:15,411 INFO L280 TraceCheckUtils]: 11: Hoare triple {36888#true} havoc ~lk2~0; {36888#true} is VALID [2020-07-18 00:18:15,411 INFO L280 TraceCheckUtils]: 12: Hoare triple {36888#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {36888#true} is VALID [2020-07-18 00:18:15,411 INFO L280 TraceCheckUtils]: 13: Hoare triple {36888#true} ~p3~0 := #t~nondet2; {36888#true} is VALID [2020-07-18 00:18:15,412 INFO L280 TraceCheckUtils]: 14: Hoare triple {36888#true} havoc #t~nondet2; {36888#true} is VALID [2020-07-18 00:18:15,412 INFO L280 TraceCheckUtils]: 15: Hoare triple {36888#true} havoc ~lk3~0; {36888#true} is VALID [2020-07-18 00:18:15,412 INFO L280 TraceCheckUtils]: 16: Hoare triple {36888#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {36888#true} is VALID [2020-07-18 00:18:15,412 INFO L280 TraceCheckUtils]: 17: Hoare triple {36888#true} ~p4~0 := #t~nondet3; {36888#true} is VALID [2020-07-18 00:18:15,412 INFO L280 TraceCheckUtils]: 18: Hoare triple {36888#true} havoc #t~nondet3; {36888#true} is VALID [2020-07-18 00:18:15,413 INFO L280 TraceCheckUtils]: 19: Hoare triple {36888#true} havoc ~lk4~0; {36888#true} is VALID [2020-07-18 00:18:15,413 INFO L280 TraceCheckUtils]: 20: Hoare triple {36888#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {36888#true} is VALID [2020-07-18 00:18:15,413 INFO L280 TraceCheckUtils]: 21: Hoare triple {36888#true} ~p5~0 := #t~nondet4; {36888#true} is VALID [2020-07-18 00:18:15,413 INFO L280 TraceCheckUtils]: 22: Hoare triple {36888#true} havoc #t~nondet4; {36888#true} is VALID [2020-07-18 00:18:15,413 INFO L280 TraceCheckUtils]: 23: Hoare triple {36888#true} havoc ~lk5~0; {36888#true} is VALID [2020-07-18 00:18:15,413 INFO L280 TraceCheckUtils]: 24: Hoare triple {36888#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {36888#true} is VALID [2020-07-18 00:18:15,414 INFO L280 TraceCheckUtils]: 25: Hoare triple {36888#true} ~p6~0 := #t~nondet5; {36888#true} is VALID [2020-07-18 00:18:15,414 INFO L280 TraceCheckUtils]: 26: Hoare triple {36888#true} havoc #t~nondet5; {36888#true} is VALID [2020-07-18 00:18:15,414 INFO L280 TraceCheckUtils]: 27: Hoare triple {36888#true} havoc ~lk6~0; {36888#true} is VALID [2020-07-18 00:18:15,414 INFO L280 TraceCheckUtils]: 28: Hoare triple {36888#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {36888#true} is VALID [2020-07-18 00:18:15,414 INFO L280 TraceCheckUtils]: 29: Hoare triple {36888#true} ~p7~0 := #t~nondet6; {36888#true} is VALID [2020-07-18 00:18:15,415 INFO L280 TraceCheckUtils]: 30: Hoare triple {36888#true} havoc #t~nondet6; {36888#true} is VALID [2020-07-18 00:18:15,415 INFO L280 TraceCheckUtils]: 31: Hoare triple {36888#true} havoc ~lk7~0; {36888#true} is VALID [2020-07-18 00:18:15,415 INFO L280 TraceCheckUtils]: 32: Hoare triple {36888#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {36888#true} is VALID [2020-07-18 00:18:15,415 INFO L280 TraceCheckUtils]: 33: Hoare triple {36888#true} ~p8~0 := #t~nondet7; {36888#true} is VALID [2020-07-18 00:18:15,415 INFO L280 TraceCheckUtils]: 34: Hoare triple {36888#true} havoc #t~nondet7; {36888#true} is VALID [2020-07-18 00:18:15,416 INFO L280 TraceCheckUtils]: 35: Hoare triple {36888#true} havoc ~lk8~0; {36888#true} is VALID [2020-07-18 00:18:15,416 INFO L280 TraceCheckUtils]: 36: Hoare triple {36888#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {36888#true} is VALID [2020-07-18 00:18:15,416 INFO L280 TraceCheckUtils]: 37: Hoare triple {36888#true} ~p9~0 := #t~nondet8; {36888#true} is VALID [2020-07-18 00:18:15,416 INFO L280 TraceCheckUtils]: 38: Hoare triple {36888#true} havoc #t~nondet8; {36888#true} is VALID [2020-07-18 00:18:15,416 INFO L280 TraceCheckUtils]: 39: Hoare triple {36888#true} havoc ~lk9~0; {36888#true} is VALID [2020-07-18 00:18:15,416 INFO L280 TraceCheckUtils]: 40: Hoare triple {36888#true} havoc ~cond~0; {36888#true} is VALID [2020-07-18 00:18:15,416 INFO L280 TraceCheckUtils]: 41: Hoare triple {36888#true} assume !false; {36888#true} is VALID [2020-07-18 00:18:15,416 INFO L280 TraceCheckUtils]: 42: Hoare triple {36888#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {36888#true} is VALID [2020-07-18 00:18:15,417 INFO L280 TraceCheckUtils]: 43: Hoare triple {36888#true} ~cond~0 := #t~nondet9; {36888#true} is VALID [2020-07-18 00:18:15,417 INFO L280 TraceCheckUtils]: 44: Hoare triple {36888#true} havoc #t~nondet9; {36888#true} is VALID [2020-07-18 00:18:15,417 INFO L280 TraceCheckUtils]: 45: Hoare triple {36888#true} assume !(0 == ~cond~0); {36888#true} is VALID [2020-07-18 00:18:15,417 INFO L280 TraceCheckUtils]: 46: Hoare triple {36888#true} ~lk1~0 := 0; {36888#true} is VALID [2020-07-18 00:18:15,417 INFO L280 TraceCheckUtils]: 47: Hoare triple {36888#true} ~lk2~0 := 0; {36888#true} is VALID [2020-07-18 00:18:15,417 INFO L280 TraceCheckUtils]: 48: Hoare triple {36888#true} ~lk3~0 := 0; {36888#true} is VALID [2020-07-18 00:18:15,418 INFO L280 TraceCheckUtils]: 49: Hoare triple {36888#true} ~lk4~0 := 0; {36888#true} is VALID [2020-07-18 00:18:15,418 INFO L280 TraceCheckUtils]: 50: Hoare triple {36888#true} ~lk5~0 := 0; {36888#true} is VALID [2020-07-18 00:18:15,418 INFO L280 TraceCheckUtils]: 51: Hoare triple {36888#true} ~lk6~0 := 0; {36888#true} is VALID [2020-07-18 00:18:15,418 INFO L280 TraceCheckUtils]: 52: Hoare triple {36888#true} ~lk7~0 := 0; {36888#true} is VALID [2020-07-18 00:18:15,418 INFO L280 TraceCheckUtils]: 53: Hoare triple {36888#true} ~lk8~0 := 0; {36888#true} is VALID [2020-07-18 00:18:15,419 INFO L280 TraceCheckUtils]: 54: Hoare triple {36888#true} ~lk9~0 := 0; {36888#true} is VALID [2020-07-18 00:18:15,419 INFO L280 TraceCheckUtils]: 55: Hoare triple {36888#true} assume !(0 != ~p1~0); {36888#true} is VALID [2020-07-18 00:18:15,419 INFO L280 TraceCheckUtils]: 56: Hoare triple {36888#true} assume !(0 != ~p2~0); {36888#true} is VALID [2020-07-18 00:18:15,419 INFO L280 TraceCheckUtils]: 57: Hoare triple {36888#true} assume !(0 != ~p3~0); {36888#true} is VALID [2020-07-18 00:18:15,419 INFO L280 TraceCheckUtils]: 58: Hoare triple {36888#true} assume !(0 != ~p4~0); {36888#true} is VALID [2020-07-18 00:18:15,419 INFO L280 TraceCheckUtils]: 59: Hoare triple {36888#true} assume 0 != ~p5~0; {36888#true} is VALID [2020-07-18 00:18:15,420 INFO L280 TraceCheckUtils]: 60: Hoare triple {36888#true} ~lk5~0 := 1; {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 00:18:15,421 INFO L280 TraceCheckUtils]: 61: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p6~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 00:18:15,421 INFO L280 TraceCheckUtils]: 62: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p7~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 00:18:15,422 INFO L280 TraceCheckUtils]: 63: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p8~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 00:18:15,422 INFO L280 TraceCheckUtils]: 64: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p9~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 00:18:15,423 INFO L280 TraceCheckUtils]: 65: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p1~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 00:18:15,423 INFO L280 TraceCheckUtils]: 66: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p2~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 00:18:15,424 INFO L280 TraceCheckUtils]: 67: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p3~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 00:18:15,424 INFO L280 TraceCheckUtils]: 68: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p4~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 00:18:15,425 INFO L280 TraceCheckUtils]: 69: Hoare triple {36892#(= 1 main_~lk5~0)} assume 0 != ~p5~0; {36892#(= 1 main_~lk5~0)} is VALID [2020-07-18 00:18:15,425 INFO L280 TraceCheckUtils]: 70: Hoare triple {36892#(= 1 main_~lk5~0)} assume 1 != ~lk5~0; {36889#false} is VALID [2020-07-18 00:18:15,425 INFO L280 TraceCheckUtils]: 71: Hoare triple {36889#false} assume !false; {36889#false} is VALID [2020-07-18 00:18:15,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:18:15,428 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:18:15,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322946211] [2020-07-18 00:18:15,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:18:15,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:18:15,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018844348] [2020-07-18 00:18:15,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-18 00:18:15,430 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:18:15,430 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:18:15,496 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:18:15,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:18:15,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:18:15,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:18:15,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:18:15,498 INFO L87 Difference]: Start difference. First operand 1691 states and 2250 transitions. Second operand 3 states. [2020-07-18 00:18:20,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:18:20,352 INFO L93 Difference]: Finished difference Result 2047 states and 2732 transitions. [2020-07-18 00:18:20,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:18:20,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-18 00:18:20,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:18:20,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:18:20,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2020-07-18 00:18:20,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:18:20,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2020-07-18 00:18:20,355 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 185 transitions. [2020-07-18 00:18:20,528 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:18:20,668 INFO L225 Difference]: With dead ends: 2047 [2020-07-18 00:18:20,668 INFO L226 Difference]: Without dead ends: 2045 [2020-07-18 00:18:20,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:18:20,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2020-07-18 00:18:24,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1691. [2020-07-18 00:18:24,508 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:18:24,508 INFO L82 GeneralOperation]: Start isEquivalent. First operand 2045 states. Second operand 1691 states. [2020-07-18 00:18:24,508 INFO L74 IsIncluded]: Start isIncluded. First operand 2045 states. Second operand 1691 states. [2020-07-18 00:18:24,509 INFO L87 Difference]: Start difference. First operand 2045 states. Second operand 1691 states. [2020-07-18 00:18:24,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:18:24,647 INFO L93 Difference]: Finished difference Result 2045 states and 2715 transitions. [2020-07-18 00:18:24,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2715 transitions. [2020-07-18 00:18:24,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:18:24,650 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:18:24,650 INFO L74 IsIncluded]: Start isIncluded. First operand 1691 states. Second operand 2045 states. [2020-07-18 00:18:24,650 INFO L87 Difference]: Start difference. First operand 1691 states. Second operand 2045 states. [2020-07-18 00:18:24,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:18:24,783 INFO L93 Difference]: Finished difference Result 2045 states and 2715 transitions. [2020-07-18 00:18:24,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2715 transitions. [2020-07-18 00:18:24,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:18:24,786 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:18:24,786 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:18:24,786 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:18:24,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-07-18 00:18:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2234 transitions. [2020-07-18 00:18:24,872 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2234 transitions. Word has length 72 [2020-07-18 00:18:24,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:18:24,873 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2234 transitions. [2020-07-18 00:18:24,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:18:24,873 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 1691 states and 2234 transitions. [2020-07-18 00:18:27,744 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2234 edges. 2234 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:18:27,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2234 transitions. [2020-07-18 00:18:27,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-07-18 00:18:27,746 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:18:27,746 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] [2020-07-18 00:18:27,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-18 00:18:27,747 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:18:27,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:18:27,747 INFO L82 PathProgramCache]: Analyzing trace with hash 94899998, now seen corresponding path program 1 times [2020-07-18 00:18:27,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:18:27,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486119077] [2020-07-18 00:18:27,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:18:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:18:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:18:27,799 INFO L280 TraceCheckUtils]: 0: Hoare triple {48461#true} assume true; {48461#true} is VALID [2020-07-18 00:18:27,799 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {48461#true} {48461#true} #247#return; {48461#true} is VALID [2020-07-18 00:18:27,799 INFO L263 TraceCheckUtils]: 0: Hoare triple {48461#true} call ULTIMATE.init(); {48461#true} is VALID [2020-07-18 00:18:27,799 INFO L280 TraceCheckUtils]: 1: Hoare triple {48461#true} assume true; {48461#true} is VALID [2020-07-18 00:18:27,800 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {48461#true} {48461#true} #247#return; {48461#true} is VALID [2020-07-18 00:18:27,800 INFO L263 TraceCheckUtils]: 3: Hoare triple {48461#true} call #t~ret10 := main(); {48461#true} is VALID [2020-07-18 00:18:27,800 INFO L280 TraceCheckUtils]: 4: Hoare triple {48461#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {48461#true} is VALID [2020-07-18 00:18:27,800 INFO L280 TraceCheckUtils]: 5: Hoare triple {48461#true} ~p1~0 := #t~nondet0; {48461#true} is VALID [2020-07-18 00:18:27,800 INFO L280 TraceCheckUtils]: 6: Hoare triple {48461#true} havoc #t~nondet0; {48461#true} is VALID [2020-07-18 00:18:27,800 INFO L280 TraceCheckUtils]: 7: Hoare triple {48461#true} havoc ~lk1~0; {48461#true} is VALID [2020-07-18 00:18:27,800 INFO L280 TraceCheckUtils]: 8: Hoare triple {48461#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {48461#true} is VALID [2020-07-18 00:18:27,800 INFO L280 TraceCheckUtils]: 9: Hoare triple {48461#true} ~p2~0 := #t~nondet1; {48461#true} is VALID [2020-07-18 00:18:27,801 INFO L280 TraceCheckUtils]: 10: Hoare triple {48461#true} havoc #t~nondet1; {48461#true} is VALID [2020-07-18 00:18:27,801 INFO L280 TraceCheckUtils]: 11: Hoare triple {48461#true} havoc ~lk2~0; {48461#true} is VALID [2020-07-18 00:18:27,801 INFO L280 TraceCheckUtils]: 12: Hoare triple {48461#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {48461#true} is VALID [2020-07-18 00:18:27,801 INFO L280 TraceCheckUtils]: 13: Hoare triple {48461#true} ~p3~0 := #t~nondet2; {48461#true} is VALID [2020-07-18 00:18:27,801 INFO L280 TraceCheckUtils]: 14: Hoare triple {48461#true} havoc #t~nondet2; {48461#true} is VALID [2020-07-18 00:18:27,801 INFO L280 TraceCheckUtils]: 15: Hoare triple {48461#true} havoc ~lk3~0; {48461#true} is VALID [2020-07-18 00:18:27,801 INFO L280 TraceCheckUtils]: 16: Hoare triple {48461#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {48461#true} is VALID [2020-07-18 00:18:27,802 INFO L280 TraceCheckUtils]: 17: Hoare triple {48461#true} ~p4~0 := #t~nondet3; {48461#true} is VALID [2020-07-18 00:18:27,802 INFO L280 TraceCheckUtils]: 18: Hoare triple {48461#true} havoc #t~nondet3; {48461#true} is VALID [2020-07-18 00:18:27,802 INFO L280 TraceCheckUtils]: 19: Hoare triple {48461#true} havoc ~lk4~0; {48461#true} is VALID [2020-07-18 00:18:27,802 INFO L280 TraceCheckUtils]: 20: Hoare triple {48461#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {48461#true} is VALID [2020-07-18 00:18:27,802 INFO L280 TraceCheckUtils]: 21: Hoare triple {48461#true} ~p5~0 := #t~nondet4; {48461#true} is VALID [2020-07-18 00:18:27,802 INFO L280 TraceCheckUtils]: 22: Hoare triple {48461#true} havoc #t~nondet4; {48461#true} is VALID [2020-07-18 00:18:27,802 INFO L280 TraceCheckUtils]: 23: Hoare triple {48461#true} havoc ~lk5~0; {48461#true} is VALID [2020-07-18 00:18:27,802 INFO L280 TraceCheckUtils]: 24: Hoare triple {48461#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {48461#true} is VALID [2020-07-18 00:18:27,803 INFO L280 TraceCheckUtils]: 25: Hoare triple {48461#true} ~p6~0 := #t~nondet5; {48461#true} is VALID [2020-07-18 00:18:27,803 INFO L280 TraceCheckUtils]: 26: Hoare triple {48461#true} havoc #t~nondet5; {48461#true} is VALID [2020-07-18 00:18:27,803 INFO L280 TraceCheckUtils]: 27: Hoare triple {48461#true} havoc ~lk6~0; {48461#true} is VALID [2020-07-18 00:18:27,803 INFO L280 TraceCheckUtils]: 28: Hoare triple {48461#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {48461#true} is VALID [2020-07-18 00:18:27,803 INFO L280 TraceCheckUtils]: 29: Hoare triple {48461#true} ~p7~0 := #t~nondet6; {48461#true} is VALID [2020-07-18 00:18:27,803 INFO L280 TraceCheckUtils]: 30: Hoare triple {48461#true} havoc #t~nondet6; {48461#true} is VALID [2020-07-18 00:18:27,804 INFO L280 TraceCheckUtils]: 31: Hoare triple {48461#true} havoc ~lk7~0; {48461#true} is VALID [2020-07-18 00:18:27,804 INFO L280 TraceCheckUtils]: 32: Hoare triple {48461#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {48461#true} is VALID [2020-07-18 00:18:27,804 INFO L280 TraceCheckUtils]: 33: Hoare triple {48461#true} ~p8~0 := #t~nondet7; {48461#true} is VALID [2020-07-18 00:18:27,804 INFO L280 TraceCheckUtils]: 34: Hoare triple {48461#true} havoc #t~nondet7; {48461#true} is VALID [2020-07-18 00:18:27,804 INFO L280 TraceCheckUtils]: 35: Hoare triple {48461#true} havoc ~lk8~0; {48461#true} is VALID [2020-07-18 00:18:27,804 INFO L280 TraceCheckUtils]: 36: Hoare triple {48461#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {48461#true} is VALID [2020-07-18 00:18:27,804 INFO L280 TraceCheckUtils]: 37: Hoare triple {48461#true} ~p9~0 := #t~nondet8; {48461#true} is VALID [2020-07-18 00:18:27,804 INFO L280 TraceCheckUtils]: 38: Hoare triple {48461#true} havoc #t~nondet8; {48461#true} is VALID [2020-07-18 00:18:27,805 INFO L280 TraceCheckUtils]: 39: Hoare triple {48461#true} havoc ~lk9~0; {48461#true} is VALID [2020-07-18 00:18:27,805 INFO L280 TraceCheckUtils]: 40: Hoare triple {48461#true} havoc ~cond~0; {48461#true} is VALID [2020-07-18 00:18:27,805 INFO L280 TraceCheckUtils]: 41: Hoare triple {48461#true} assume !false; {48461#true} is VALID [2020-07-18 00:18:27,805 INFO L280 TraceCheckUtils]: 42: Hoare triple {48461#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {48461#true} is VALID [2020-07-18 00:18:27,805 INFO L280 TraceCheckUtils]: 43: Hoare triple {48461#true} ~cond~0 := #t~nondet9; {48461#true} is VALID [2020-07-18 00:18:27,805 INFO L280 TraceCheckUtils]: 44: Hoare triple {48461#true} havoc #t~nondet9; {48461#true} is VALID [2020-07-18 00:18:27,805 INFO L280 TraceCheckUtils]: 45: Hoare triple {48461#true} assume !(0 == ~cond~0); {48461#true} is VALID [2020-07-18 00:18:27,806 INFO L280 TraceCheckUtils]: 46: Hoare triple {48461#true} ~lk1~0 := 0; {48461#true} is VALID [2020-07-18 00:18:27,806 INFO L280 TraceCheckUtils]: 47: Hoare triple {48461#true} ~lk2~0 := 0; {48461#true} is VALID [2020-07-18 00:18:27,806 INFO L280 TraceCheckUtils]: 48: Hoare triple {48461#true} ~lk3~0 := 0; {48461#true} is VALID [2020-07-18 00:18:27,806 INFO L280 TraceCheckUtils]: 49: Hoare triple {48461#true} ~lk4~0 := 0; {48461#true} is VALID [2020-07-18 00:18:27,806 INFO L280 TraceCheckUtils]: 50: Hoare triple {48461#true} ~lk5~0 := 0; {48461#true} is VALID [2020-07-18 00:18:27,806 INFO L280 TraceCheckUtils]: 51: Hoare triple {48461#true} ~lk6~0 := 0; {48461#true} is VALID [2020-07-18 00:18:27,806 INFO L280 TraceCheckUtils]: 52: Hoare triple {48461#true} ~lk7~0 := 0; {48461#true} is VALID [2020-07-18 00:18:27,806 INFO L280 TraceCheckUtils]: 53: Hoare triple {48461#true} ~lk8~0 := 0; {48461#true} is VALID [2020-07-18 00:18:27,807 INFO L280 TraceCheckUtils]: 54: Hoare triple {48461#true} ~lk9~0 := 0; {48461#true} is VALID [2020-07-18 00:18:27,807 INFO L280 TraceCheckUtils]: 55: Hoare triple {48461#true} assume !(0 != ~p1~0); {48461#true} is VALID [2020-07-18 00:18:27,807 INFO L280 TraceCheckUtils]: 56: Hoare triple {48461#true} assume !(0 != ~p2~0); {48461#true} is VALID [2020-07-18 00:18:27,807 INFO L280 TraceCheckUtils]: 57: Hoare triple {48461#true} assume !(0 != ~p3~0); {48461#true} is VALID [2020-07-18 00:18:27,807 INFO L280 TraceCheckUtils]: 58: Hoare triple {48461#true} assume !(0 != ~p4~0); {48461#true} is VALID [2020-07-18 00:18:27,807 INFO L280 TraceCheckUtils]: 59: Hoare triple {48461#true} assume !(0 != ~p5~0); {48461#true} is VALID [2020-07-18 00:18:27,808 INFO L280 TraceCheckUtils]: 60: Hoare triple {48461#true} assume !(0 != ~p6~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 00:18:27,808 INFO L280 TraceCheckUtils]: 61: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p7~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 00:18:27,808 INFO L280 TraceCheckUtils]: 62: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p8~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 00:18:27,809 INFO L280 TraceCheckUtils]: 63: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p9~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 00:18:27,809 INFO L280 TraceCheckUtils]: 64: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p1~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 00:18:27,814 INFO L280 TraceCheckUtils]: 65: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p2~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 00:18:27,816 INFO L280 TraceCheckUtils]: 66: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p3~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 00:18:27,817 INFO L280 TraceCheckUtils]: 67: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p4~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 00:18:27,817 INFO L280 TraceCheckUtils]: 68: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p5~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-18 00:18:27,818 INFO L280 TraceCheckUtils]: 69: Hoare triple {48465#(= 0 main_~p6~0)} assume 0 != ~p6~0; {48462#false} is VALID [2020-07-18 00:18:27,818 INFO L280 TraceCheckUtils]: 70: Hoare triple {48462#false} assume 1 != ~lk6~0; {48462#false} is VALID [2020-07-18 00:18:27,818 INFO L280 TraceCheckUtils]: 71: Hoare triple {48462#false} assume !false; {48462#false} is VALID [2020-07-18 00:18:27,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:18:27,822 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:18:27,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486119077] [2020-07-18 00:18:27,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:18:27,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:18:27,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165011712] [2020-07-18 00:18:27,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-18 00:18:27,823 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:18:27,823 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:18:27,880 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:18:27,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:18:27,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:18:27,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:18:27,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:18:27,881 INFO L87 Difference]: Start difference. First operand 1691 states and 2234 transitions. Second operand 3 states. [2020-07-18 00:18:37,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:18:37,265 INFO L93 Difference]: Finished difference Result 4895 states and 6492 transitions. [2020-07-18 00:18:37,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:18:37,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-18 00:18:37,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:18:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:18:37,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2020-07-18 00:18:37,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:18:37,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2020-07-18 00:18:37,270 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 283 transitions. [2020-07-18 00:18:37,532 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 283 edges. 283 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:18:37,904 INFO L225 Difference]: With dead ends: 4895 [2020-07-18 00:18:37,904 INFO L226 Difference]: Without dead ends: 3245 [2020-07-18 00:18:37,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:18:37,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2020-07-18 00:18:46,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3243. [2020-07-18 00:18:46,034 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:18:46,034 INFO L82 GeneralOperation]: Start isEquivalent. First operand 3245 states. Second operand 3243 states. [2020-07-18 00:18:46,034 INFO L74 IsIncluded]: Start isIncluded. First operand 3245 states. Second operand 3243 states. [2020-07-18 00:18:46,035 INFO L87 Difference]: Start difference. First operand 3245 states. Second operand 3243 states. [2020-07-18 00:18:46,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:18:46,354 INFO L93 Difference]: Finished difference Result 3245 states and 4235 transitions. [2020-07-18 00:18:46,354 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4235 transitions. [2020-07-18 00:18:46,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:18:46,359 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:18:46,359 INFO L74 IsIncluded]: Start isIncluded. First operand 3243 states. Second operand 3245 states. [2020-07-18 00:18:46,359 INFO L87 Difference]: Start difference. First operand 3243 states. Second operand 3245 states. [2020-07-18 00:18:46,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:18:46,704 INFO L93 Difference]: Finished difference Result 3245 states and 4235 transitions. [2020-07-18 00:18:46,704 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4235 transitions. [2020-07-18 00:18:46,708 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:18:46,708 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:18:46,708 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:18:46,708 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:18:46,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-07-18 00:18:47,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4234 transitions. [2020-07-18 00:18:47,080 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4234 transitions. Word has length 72 [2020-07-18 00:18:47,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:18:47,080 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 4234 transitions. [2020-07-18 00:18:47,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:18:47,080 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3243 states and 4234 transitions. [2020-07-18 00:18:52,652 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4234 edges. 4234 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:18:52,652 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4234 transitions. [2020-07-18 00:18:52,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-18 00:18:52,655 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:18:52,655 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] [2020-07-18 00:18:52,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-18 00:18:52,656 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:18:52,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:18:52,656 INFO L82 PathProgramCache]: Analyzing trace with hash 2090581278, now seen corresponding path program 1 times [2020-07-18 00:18:52,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:18:52,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1489087048] [2020-07-18 00:18:52,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:18:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:18:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:18:52,705 INFO L280 TraceCheckUtils]: 0: Hoare triple {71234#true} assume true; {71234#true} is VALID [2020-07-18 00:18:52,706 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {71234#true} {71234#true} #247#return; {71234#true} is VALID [2020-07-18 00:18:52,706 INFO L263 TraceCheckUtils]: 0: Hoare triple {71234#true} call ULTIMATE.init(); {71234#true} is VALID [2020-07-18 00:18:52,706 INFO L280 TraceCheckUtils]: 1: Hoare triple {71234#true} assume true; {71234#true} is VALID [2020-07-18 00:18:52,706 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {71234#true} {71234#true} #247#return; {71234#true} is VALID [2020-07-18 00:18:52,706 INFO L263 TraceCheckUtils]: 3: Hoare triple {71234#true} call #t~ret10 := main(); {71234#true} is VALID [2020-07-18 00:18:52,706 INFO L280 TraceCheckUtils]: 4: Hoare triple {71234#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {71234#true} is VALID [2020-07-18 00:18:52,707 INFO L280 TraceCheckUtils]: 5: Hoare triple {71234#true} ~p1~0 := #t~nondet0; {71234#true} is VALID [2020-07-18 00:18:52,707 INFO L280 TraceCheckUtils]: 6: Hoare triple {71234#true} havoc #t~nondet0; {71234#true} is VALID [2020-07-18 00:18:52,707 INFO L280 TraceCheckUtils]: 7: Hoare triple {71234#true} havoc ~lk1~0; {71234#true} is VALID [2020-07-18 00:18:52,707 INFO L280 TraceCheckUtils]: 8: Hoare triple {71234#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {71234#true} is VALID [2020-07-18 00:18:52,707 INFO L280 TraceCheckUtils]: 9: Hoare triple {71234#true} ~p2~0 := #t~nondet1; {71234#true} is VALID [2020-07-18 00:18:52,707 INFO L280 TraceCheckUtils]: 10: Hoare triple {71234#true} havoc #t~nondet1; {71234#true} is VALID [2020-07-18 00:18:52,707 INFO L280 TraceCheckUtils]: 11: Hoare triple {71234#true} havoc ~lk2~0; {71234#true} is VALID [2020-07-18 00:18:52,708 INFO L280 TraceCheckUtils]: 12: Hoare triple {71234#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {71234#true} is VALID [2020-07-18 00:18:52,708 INFO L280 TraceCheckUtils]: 13: Hoare triple {71234#true} ~p3~0 := #t~nondet2; {71234#true} is VALID [2020-07-18 00:18:52,708 INFO L280 TraceCheckUtils]: 14: Hoare triple {71234#true} havoc #t~nondet2; {71234#true} is VALID [2020-07-18 00:18:52,708 INFO L280 TraceCheckUtils]: 15: Hoare triple {71234#true} havoc ~lk3~0; {71234#true} is VALID [2020-07-18 00:18:52,708 INFO L280 TraceCheckUtils]: 16: Hoare triple {71234#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {71234#true} is VALID [2020-07-18 00:18:52,708 INFO L280 TraceCheckUtils]: 17: Hoare triple {71234#true} ~p4~0 := #t~nondet3; {71234#true} is VALID [2020-07-18 00:18:52,708 INFO L280 TraceCheckUtils]: 18: Hoare triple {71234#true} havoc #t~nondet3; {71234#true} is VALID [2020-07-18 00:18:52,708 INFO L280 TraceCheckUtils]: 19: Hoare triple {71234#true} havoc ~lk4~0; {71234#true} is VALID [2020-07-18 00:18:52,709 INFO L280 TraceCheckUtils]: 20: Hoare triple {71234#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {71234#true} is VALID [2020-07-18 00:18:52,709 INFO L280 TraceCheckUtils]: 21: Hoare triple {71234#true} ~p5~0 := #t~nondet4; {71234#true} is VALID [2020-07-18 00:18:52,709 INFO L280 TraceCheckUtils]: 22: Hoare triple {71234#true} havoc #t~nondet4; {71234#true} is VALID [2020-07-18 00:18:52,709 INFO L280 TraceCheckUtils]: 23: Hoare triple {71234#true} havoc ~lk5~0; {71234#true} is VALID [2020-07-18 00:18:52,709 INFO L280 TraceCheckUtils]: 24: Hoare triple {71234#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {71234#true} is VALID [2020-07-18 00:18:52,709 INFO L280 TraceCheckUtils]: 25: Hoare triple {71234#true} ~p6~0 := #t~nondet5; {71234#true} is VALID [2020-07-18 00:18:52,709 INFO L280 TraceCheckUtils]: 26: Hoare triple {71234#true} havoc #t~nondet5; {71234#true} is VALID [2020-07-18 00:18:52,710 INFO L280 TraceCheckUtils]: 27: Hoare triple {71234#true} havoc ~lk6~0; {71234#true} is VALID [2020-07-18 00:18:52,710 INFO L280 TraceCheckUtils]: 28: Hoare triple {71234#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {71234#true} is VALID [2020-07-18 00:18:52,710 INFO L280 TraceCheckUtils]: 29: Hoare triple {71234#true} ~p7~0 := #t~nondet6; {71234#true} is VALID [2020-07-18 00:18:52,710 INFO L280 TraceCheckUtils]: 30: Hoare triple {71234#true} havoc #t~nondet6; {71234#true} is VALID [2020-07-18 00:18:52,710 INFO L280 TraceCheckUtils]: 31: Hoare triple {71234#true} havoc ~lk7~0; {71234#true} is VALID [2020-07-18 00:18:52,710 INFO L280 TraceCheckUtils]: 32: Hoare triple {71234#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {71234#true} is VALID [2020-07-18 00:18:52,711 INFO L280 TraceCheckUtils]: 33: Hoare triple {71234#true} ~p8~0 := #t~nondet7; {71234#true} is VALID [2020-07-18 00:18:52,711 INFO L280 TraceCheckUtils]: 34: Hoare triple {71234#true} havoc #t~nondet7; {71234#true} is VALID [2020-07-18 00:18:52,711 INFO L280 TraceCheckUtils]: 35: Hoare triple {71234#true} havoc ~lk8~0; {71234#true} is VALID [2020-07-18 00:18:52,711 INFO L280 TraceCheckUtils]: 36: Hoare triple {71234#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {71234#true} is VALID [2020-07-18 00:18:52,711 INFO L280 TraceCheckUtils]: 37: Hoare triple {71234#true} ~p9~0 := #t~nondet8; {71234#true} is VALID [2020-07-18 00:18:52,711 INFO L280 TraceCheckUtils]: 38: Hoare triple {71234#true} havoc #t~nondet8; {71234#true} is VALID [2020-07-18 00:18:52,712 INFO L280 TraceCheckUtils]: 39: Hoare triple {71234#true} havoc ~lk9~0; {71234#true} is VALID [2020-07-18 00:18:52,712 INFO L280 TraceCheckUtils]: 40: Hoare triple {71234#true} havoc ~cond~0; {71234#true} is VALID [2020-07-18 00:18:52,712 INFO L280 TraceCheckUtils]: 41: Hoare triple {71234#true} assume !false; {71234#true} is VALID [2020-07-18 00:18:52,712 INFO L280 TraceCheckUtils]: 42: Hoare triple {71234#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {71234#true} is VALID [2020-07-18 00:18:52,712 INFO L280 TraceCheckUtils]: 43: Hoare triple {71234#true} ~cond~0 := #t~nondet9; {71234#true} is VALID [2020-07-18 00:18:52,713 INFO L280 TraceCheckUtils]: 44: Hoare triple {71234#true} havoc #t~nondet9; {71234#true} is VALID [2020-07-18 00:18:52,713 INFO L280 TraceCheckUtils]: 45: Hoare triple {71234#true} assume !(0 == ~cond~0); {71234#true} is VALID [2020-07-18 00:18:52,713 INFO L280 TraceCheckUtils]: 46: Hoare triple {71234#true} ~lk1~0 := 0; {71234#true} is VALID [2020-07-18 00:18:52,713 INFO L280 TraceCheckUtils]: 47: Hoare triple {71234#true} ~lk2~0 := 0; {71234#true} is VALID [2020-07-18 00:18:52,713 INFO L280 TraceCheckUtils]: 48: Hoare triple {71234#true} ~lk3~0 := 0; {71234#true} is VALID [2020-07-18 00:18:52,713 INFO L280 TraceCheckUtils]: 49: Hoare triple {71234#true} ~lk4~0 := 0; {71234#true} is VALID [2020-07-18 00:18:52,714 INFO L280 TraceCheckUtils]: 50: Hoare triple {71234#true} ~lk5~0 := 0; {71234#true} is VALID [2020-07-18 00:18:52,714 INFO L280 TraceCheckUtils]: 51: Hoare triple {71234#true} ~lk6~0 := 0; {71234#true} is VALID [2020-07-18 00:18:52,714 INFO L280 TraceCheckUtils]: 52: Hoare triple {71234#true} ~lk7~0 := 0; {71234#true} is VALID [2020-07-18 00:18:52,714 INFO L280 TraceCheckUtils]: 53: Hoare triple {71234#true} ~lk8~0 := 0; {71234#true} is VALID [2020-07-18 00:18:52,714 INFO L280 TraceCheckUtils]: 54: Hoare triple {71234#true} ~lk9~0 := 0; {71234#true} is VALID [2020-07-18 00:18:52,714 INFO L280 TraceCheckUtils]: 55: Hoare triple {71234#true} assume !(0 != ~p1~0); {71234#true} is VALID [2020-07-18 00:18:52,714 INFO L280 TraceCheckUtils]: 56: Hoare triple {71234#true} assume !(0 != ~p2~0); {71234#true} is VALID [2020-07-18 00:18:52,715 INFO L280 TraceCheckUtils]: 57: Hoare triple {71234#true} assume !(0 != ~p3~0); {71234#true} is VALID [2020-07-18 00:18:52,715 INFO L280 TraceCheckUtils]: 58: Hoare triple {71234#true} assume !(0 != ~p4~0); {71234#true} is VALID [2020-07-18 00:18:52,715 INFO L280 TraceCheckUtils]: 59: Hoare triple {71234#true} assume !(0 != ~p5~0); {71234#true} is VALID [2020-07-18 00:18:52,715 INFO L280 TraceCheckUtils]: 60: Hoare triple {71234#true} assume 0 != ~p6~0; {71234#true} is VALID [2020-07-18 00:18:52,716 INFO L280 TraceCheckUtils]: 61: Hoare triple {71234#true} ~lk6~0 := 1; {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 00:18:52,716 INFO L280 TraceCheckUtils]: 62: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p7~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 00:18:52,716 INFO L280 TraceCheckUtils]: 63: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p8~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 00:18:52,717 INFO L280 TraceCheckUtils]: 64: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p9~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 00:18:52,717 INFO L280 TraceCheckUtils]: 65: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p1~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 00:18:52,717 INFO L280 TraceCheckUtils]: 66: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p2~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 00:18:52,718 INFO L280 TraceCheckUtils]: 67: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p3~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 00:18:52,718 INFO L280 TraceCheckUtils]: 68: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p4~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 00:18:52,718 INFO L280 TraceCheckUtils]: 69: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p5~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 00:18:52,719 INFO L280 TraceCheckUtils]: 70: Hoare triple {71238#(= 1 main_~lk6~0)} assume 0 != ~p6~0; {71238#(= 1 main_~lk6~0)} is VALID [2020-07-18 00:18:52,719 INFO L280 TraceCheckUtils]: 71: Hoare triple {71238#(= 1 main_~lk6~0)} assume 1 != ~lk6~0; {71235#false} is VALID [2020-07-18 00:18:52,719 INFO L280 TraceCheckUtils]: 72: Hoare triple {71235#false} assume !false; {71235#false} is VALID [2020-07-18 00:18:52,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:18:52,722 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:18:52,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1489087048] [2020-07-18 00:18:52,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:18:52,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:18:52,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672117267] [2020-07-18 00:18:52,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-18 00:18:52,724 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:18:52,724 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:18:52,787 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:18:52,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:18:52,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:18:52,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:18:52,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:18:52,788 INFO L87 Difference]: Start difference. First operand 3243 states and 4234 transitions. Second operand 3 states. [2020-07-18 00:19:03,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:19:03,189 INFO L93 Difference]: Finished difference Result 3887 states and 5068 transitions. [2020-07-18 00:19:03,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:19:03,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-18 00:19:03,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:19:03,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:19:03,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2020-07-18 00:19:03,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:19:03,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2020-07-18 00:19:03,192 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 181 transitions. [2020-07-18 00:19:03,354 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 181 edges. 181 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:19:03,833 INFO L225 Difference]: With dead ends: 3887 [2020-07-18 00:19:03,834 INFO L226 Difference]: Without dead ends: 3885 [2020-07-18 00:19:03,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:19:03,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2020-07-18 00:19:12,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3243. [2020-07-18 00:19:12,468 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:19:12,468 INFO L82 GeneralOperation]: Start isEquivalent. First operand 3885 states. Second operand 3243 states. [2020-07-18 00:19:12,468 INFO L74 IsIncluded]: Start isIncluded. First operand 3885 states. Second operand 3243 states. [2020-07-18 00:19:12,468 INFO L87 Difference]: Start difference. First operand 3885 states. Second operand 3243 states. [2020-07-18 00:19:12,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:19:12,921 INFO L93 Difference]: Finished difference Result 3885 states and 5035 transitions. [2020-07-18 00:19:12,922 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5035 transitions. [2020-07-18 00:19:12,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:19:12,926 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:19:12,926 INFO L74 IsIncluded]: Start isIncluded. First operand 3243 states. Second operand 3885 states. [2020-07-18 00:19:12,926 INFO L87 Difference]: Start difference. First operand 3243 states. Second operand 3885 states. [2020-07-18 00:19:13,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:19:13,375 INFO L93 Difference]: Finished difference Result 3885 states and 5035 transitions. [2020-07-18 00:19:13,375 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5035 transitions. [2020-07-18 00:19:13,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:19:13,379 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:19:13,379 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:19:13,379 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:19:13,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-07-18 00:19:13,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4202 transitions. [2020-07-18 00:19:13,755 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4202 transitions. Word has length 73 [2020-07-18 00:19:13,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:19:13,756 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 4202 transitions. [2020-07-18 00:19:13,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:19:13,756 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3243 states and 4202 transitions. [2020-07-18 00:19:19,449 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4202 edges. 4202 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:19:19,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4202 transitions. [2020-07-18 00:19:19,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-18 00:19:19,453 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:19:19,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:19:19,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-18 00:19:19,454 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:19:19,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:19:19,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1352821224, now seen corresponding path program 1 times [2020-07-18 00:19:19,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:19:19,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640356050] [2020-07-18 00:19:19,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:19:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:19:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:19:19,513 INFO L280 TraceCheckUtils]: 0: Hoare triple {93271#true} assume true; {93271#true} is VALID [2020-07-18 00:19:19,513 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {93271#true} {93271#true} #247#return; {93271#true} is VALID [2020-07-18 00:19:19,514 INFO L263 TraceCheckUtils]: 0: Hoare triple {93271#true} call ULTIMATE.init(); {93271#true} is VALID [2020-07-18 00:19:19,514 INFO L280 TraceCheckUtils]: 1: Hoare triple {93271#true} assume true; {93271#true} is VALID [2020-07-18 00:19:19,514 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {93271#true} {93271#true} #247#return; {93271#true} is VALID [2020-07-18 00:19:19,514 INFO L263 TraceCheckUtils]: 3: Hoare triple {93271#true} call #t~ret10 := main(); {93271#true} is VALID [2020-07-18 00:19:19,514 INFO L280 TraceCheckUtils]: 4: Hoare triple {93271#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {93271#true} is VALID [2020-07-18 00:19:19,515 INFO L280 TraceCheckUtils]: 5: Hoare triple {93271#true} ~p1~0 := #t~nondet0; {93271#true} is VALID [2020-07-18 00:19:19,515 INFO L280 TraceCheckUtils]: 6: Hoare triple {93271#true} havoc #t~nondet0; {93271#true} is VALID [2020-07-18 00:19:19,515 INFO L280 TraceCheckUtils]: 7: Hoare triple {93271#true} havoc ~lk1~0; {93271#true} is VALID [2020-07-18 00:19:19,516 INFO L280 TraceCheckUtils]: 8: Hoare triple {93271#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {93271#true} is VALID [2020-07-18 00:19:19,517 INFO L280 TraceCheckUtils]: 9: Hoare triple {93271#true} ~p2~0 := #t~nondet1; {93271#true} is VALID [2020-07-18 00:19:19,517 INFO L280 TraceCheckUtils]: 10: Hoare triple {93271#true} havoc #t~nondet1; {93271#true} is VALID [2020-07-18 00:19:19,517 INFO L280 TraceCheckUtils]: 11: Hoare triple {93271#true} havoc ~lk2~0; {93271#true} is VALID [2020-07-18 00:19:19,517 INFO L280 TraceCheckUtils]: 12: Hoare triple {93271#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {93271#true} is VALID [2020-07-18 00:19:19,517 INFO L280 TraceCheckUtils]: 13: Hoare triple {93271#true} ~p3~0 := #t~nondet2; {93271#true} is VALID [2020-07-18 00:19:19,518 INFO L280 TraceCheckUtils]: 14: Hoare triple {93271#true} havoc #t~nondet2; {93271#true} is VALID [2020-07-18 00:19:19,518 INFO L280 TraceCheckUtils]: 15: Hoare triple {93271#true} havoc ~lk3~0; {93271#true} is VALID [2020-07-18 00:19:19,518 INFO L280 TraceCheckUtils]: 16: Hoare triple {93271#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {93271#true} is VALID [2020-07-18 00:19:19,518 INFO L280 TraceCheckUtils]: 17: Hoare triple {93271#true} ~p4~0 := #t~nondet3; {93271#true} is VALID [2020-07-18 00:19:19,518 INFO L280 TraceCheckUtils]: 18: Hoare triple {93271#true} havoc #t~nondet3; {93271#true} is VALID [2020-07-18 00:19:19,518 INFO L280 TraceCheckUtils]: 19: Hoare triple {93271#true} havoc ~lk4~0; {93271#true} is VALID [2020-07-18 00:19:19,519 INFO L280 TraceCheckUtils]: 20: Hoare triple {93271#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {93271#true} is VALID [2020-07-18 00:19:19,519 INFO L280 TraceCheckUtils]: 21: Hoare triple {93271#true} ~p5~0 := #t~nondet4; {93271#true} is VALID [2020-07-18 00:19:19,519 INFO L280 TraceCheckUtils]: 22: Hoare triple {93271#true} havoc #t~nondet4; {93271#true} is VALID [2020-07-18 00:19:19,519 INFO L280 TraceCheckUtils]: 23: Hoare triple {93271#true} havoc ~lk5~0; {93271#true} is VALID [2020-07-18 00:19:19,519 INFO L280 TraceCheckUtils]: 24: Hoare triple {93271#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {93271#true} is VALID [2020-07-18 00:19:19,520 INFO L280 TraceCheckUtils]: 25: Hoare triple {93271#true} ~p6~0 := #t~nondet5; {93271#true} is VALID [2020-07-18 00:19:19,520 INFO L280 TraceCheckUtils]: 26: Hoare triple {93271#true} havoc #t~nondet5; {93271#true} is VALID [2020-07-18 00:19:19,520 INFO L280 TraceCheckUtils]: 27: Hoare triple {93271#true} havoc ~lk6~0; {93271#true} is VALID [2020-07-18 00:19:19,520 INFO L280 TraceCheckUtils]: 28: Hoare triple {93271#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {93271#true} is VALID [2020-07-18 00:19:19,520 INFO L280 TraceCheckUtils]: 29: Hoare triple {93271#true} ~p7~0 := #t~nondet6; {93271#true} is VALID [2020-07-18 00:19:19,520 INFO L280 TraceCheckUtils]: 30: Hoare triple {93271#true} havoc #t~nondet6; {93271#true} is VALID [2020-07-18 00:19:19,521 INFO L280 TraceCheckUtils]: 31: Hoare triple {93271#true} havoc ~lk7~0; {93271#true} is VALID [2020-07-18 00:19:19,521 INFO L280 TraceCheckUtils]: 32: Hoare triple {93271#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {93271#true} is VALID [2020-07-18 00:19:19,521 INFO L280 TraceCheckUtils]: 33: Hoare triple {93271#true} ~p8~0 := #t~nondet7; {93271#true} is VALID [2020-07-18 00:19:19,521 INFO L280 TraceCheckUtils]: 34: Hoare triple {93271#true} havoc #t~nondet7; {93271#true} is VALID [2020-07-18 00:19:19,521 INFO L280 TraceCheckUtils]: 35: Hoare triple {93271#true} havoc ~lk8~0; {93271#true} is VALID [2020-07-18 00:19:19,521 INFO L280 TraceCheckUtils]: 36: Hoare triple {93271#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {93271#true} is VALID [2020-07-18 00:19:19,522 INFO L280 TraceCheckUtils]: 37: Hoare triple {93271#true} ~p9~0 := #t~nondet8; {93271#true} is VALID [2020-07-18 00:19:19,522 INFO L280 TraceCheckUtils]: 38: Hoare triple {93271#true} havoc #t~nondet8; {93271#true} is VALID [2020-07-18 00:19:19,522 INFO L280 TraceCheckUtils]: 39: Hoare triple {93271#true} havoc ~lk9~0; {93271#true} is VALID [2020-07-18 00:19:19,522 INFO L280 TraceCheckUtils]: 40: Hoare triple {93271#true} havoc ~cond~0; {93271#true} is VALID [2020-07-18 00:19:19,522 INFO L280 TraceCheckUtils]: 41: Hoare triple {93271#true} assume !false; {93271#true} is VALID [2020-07-18 00:19:19,523 INFO L280 TraceCheckUtils]: 42: Hoare triple {93271#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {93271#true} is VALID [2020-07-18 00:19:19,523 INFO L280 TraceCheckUtils]: 43: Hoare triple {93271#true} ~cond~0 := #t~nondet9; {93271#true} is VALID [2020-07-18 00:19:19,523 INFO L280 TraceCheckUtils]: 44: Hoare triple {93271#true} havoc #t~nondet9; {93271#true} is VALID [2020-07-18 00:19:19,523 INFO L280 TraceCheckUtils]: 45: Hoare triple {93271#true} assume !(0 == ~cond~0); {93271#true} is VALID [2020-07-18 00:19:19,523 INFO L280 TraceCheckUtils]: 46: Hoare triple {93271#true} ~lk1~0 := 0; {93271#true} is VALID [2020-07-18 00:19:19,523 INFO L280 TraceCheckUtils]: 47: Hoare triple {93271#true} ~lk2~0 := 0; {93271#true} is VALID [2020-07-18 00:19:19,524 INFO L280 TraceCheckUtils]: 48: Hoare triple {93271#true} ~lk3~0 := 0; {93271#true} is VALID [2020-07-18 00:19:19,524 INFO L280 TraceCheckUtils]: 49: Hoare triple {93271#true} ~lk4~0 := 0; {93271#true} is VALID [2020-07-18 00:19:19,524 INFO L280 TraceCheckUtils]: 50: Hoare triple {93271#true} ~lk5~0 := 0; {93271#true} is VALID [2020-07-18 00:19:19,524 INFO L280 TraceCheckUtils]: 51: Hoare triple {93271#true} ~lk6~0 := 0; {93271#true} is VALID [2020-07-18 00:19:19,524 INFO L280 TraceCheckUtils]: 52: Hoare triple {93271#true} ~lk7~0 := 0; {93271#true} is VALID [2020-07-18 00:19:19,524 INFO L280 TraceCheckUtils]: 53: Hoare triple {93271#true} ~lk8~0 := 0; {93271#true} is VALID [2020-07-18 00:19:19,525 INFO L280 TraceCheckUtils]: 54: Hoare triple {93271#true} ~lk9~0 := 0; {93271#true} is VALID [2020-07-18 00:19:19,525 INFO L280 TraceCheckUtils]: 55: Hoare triple {93271#true} assume !(0 != ~p1~0); {93271#true} is VALID [2020-07-18 00:19:19,525 INFO L280 TraceCheckUtils]: 56: Hoare triple {93271#true} assume !(0 != ~p2~0); {93271#true} is VALID [2020-07-18 00:19:19,525 INFO L280 TraceCheckUtils]: 57: Hoare triple {93271#true} assume !(0 != ~p3~0); {93271#true} is VALID [2020-07-18 00:19:19,525 INFO L280 TraceCheckUtils]: 58: Hoare triple {93271#true} assume !(0 != ~p4~0); {93271#true} is VALID [2020-07-18 00:19:19,526 INFO L280 TraceCheckUtils]: 59: Hoare triple {93271#true} assume !(0 != ~p5~0); {93271#true} is VALID [2020-07-18 00:19:19,526 INFO L280 TraceCheckUtils]: 60: Hoare triple {93271#true} assume !(0 != ~p6~0); {93271#true} is VALID [2020-07-18 00:19:19,526 INFO L280 TraceCheckUtils]: 61: Hoare triple {93271#true} assume !(0 != ~p7~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 00:19:19,527 INFO L280 TraceCheckUtils]: 62: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p8~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 00:19:19,527 INFO L280 TraceCheckUtils]: 63: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p9~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 00:19:19,528 INFO L280 TraceCheckUtils]: 64: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p1~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 00:19:19,528 INFO L280 TraceCheckUtils]: 65: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p2~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 00:19:19,529 INFO L280 TraceCheckUtils]: 66: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p3~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 00:19:19,529 INFO L280 TraceCheckUtils]: 67: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p4~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 00:19:19,530 INFO L280 TraceCheckUtils]: 68: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p5~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 00:19:19,530 INFO L280 TraceCheckUtils]: 69: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p6~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-18 00:19:19,531 INFO L280 TraceCheckUtils]: 70: Hoare triple {93275#(= 0 main_~p7~0)} assume 0 != ~p7~0; {93272#false} is VALID [2020-07-18 00:19:19,531 INFO L280 TraceCheckUtils]: 71: Hoare triple {93272#false} assume 1 != ~lk7~0; {93272#false} is VALID [2020-07-18 00:19:19,531 INFO L280 TraceCheckUtils]: 72: Hoare triple {93272#false} assume !false; {93272#false} is VALID [2020-07-18 00:19:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:19:19,535 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:19:19,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640356050] [2020-07-18 00:19:19,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:19:19,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:19:19,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229014492] [2020-07-18 00:19:19,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-18 00:19:19,536 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:19:19,536 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:19:19,599 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:19:19,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:19:19,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:19:19,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:19:19,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:19:19,600 INFO L87 Difference]: Start difference. First operand 3243 states and 4202 transitions. Second operand 3 states. [2020-07-18 00:19:41,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:19:41,798 INFO L93 Difference]: Finished difference Result 9455 states and 12268 transitions. [2020-07-18 00:19:41,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:19:41,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-18 00:19:41,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:19:41,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:19:41,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-18 00:19:41,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:19:41,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-18 00:19:41,802 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 280 transitions. [2020-07-18 00:19:42,059 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 280 edges. 280 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:19:43,405 INFO L225 Difference]: With dead ends: 9455 [2020-07-18 00:19:43,405 INFO L226 Difference]: Without dead ends: 6253 [2020-07-18 00:19:43,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:19:43,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6253 states. [2020-07-18 00:20:02,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6253 to 6251. [2020-07-18 00:20:02,096 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:20:02,096 INFO L82 GeneralOperation]: Start isEquivalent. First operand 6253 states. Second operand 6251 states. [2020-07-18 00:20:02,096 INFO L74 IsIncluded]: Start isIncluded. First operand 6253 states. Second operand 6251 states. [2020-07-18 00:20:02,096 INFO L87 Difference]: Start difference. First operand 6253 states. Second operand 6251 states. [2020-07-18 00:20:03,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:20:03,450 INFO L93 Difference]: Finished difference Result 6253 states and 7979 transitions. [2020-07-18 00:20:03,450 INFO L276 IsEmpty]: Start isEmpty. Operand 6253 states and 7979 transitions. [2020-07-18 00:20:03,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:20:03,504 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:20:03,504 INFO L74 IsIncluded]: Start isIncluded. First operand 6251 states. Second operand 6253 states. [2020-07-18 00:20:03,504 INFO L87 Difference]: Start difference. First operand 6251 states. Second operand 6253 states. [2020-07-18 00:20:04,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:20:04,858 INFO L93 Difference]: Finished difference Result 6253 states and 7979 transitions. [2020-07-18 00:20:04,858 INFO L276 IsEmpty]: Start isEmpty. Operand 6253 states and 7979 transitions. [2020-07-18 00:20:04,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:20:04,865 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:20:04,865 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:20:04,865 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:20:04,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6251 states. [2020-07-18 00:20:06,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6251 states to 6251 states and 7978 transitions. [2020-07-18 00:20:06,242 INFO L78 Accepts]: Start accepts. Automaton has 6251 states and 7978 transitions. Word has length 73 [2020-07-18 00:20:06,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:20:06,244 INFO L479 AbstractCegarLoop]: Abstraction has 6251 states and 7978 transitions. [2020-07-18 00:20:06,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:20:06,244 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6251 states and 7978 transitions. [2020-07-18 00:20:16,723 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7978 edges. 7978 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:20:16,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6251 states and 7978 transitions. [2020-07-18 00:20:16,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-18 00:20:16,727 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:20:16,727 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] [2020-07-18 00:20:16,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-18 00:20:16,728 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:20:16,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:20:16,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1012461522, now seen corresponding path program 1 times [2020-07-18 00:20:16,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:20:16,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803203589] [2020-07-18 00:20:16,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:20:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:20:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:20:16,776 INFO L280 TraceCheckUtils]: 0: Hoare triple {137196#true} assume true; {137196#true} is VALID [2020-07-18 00:20:16,776 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {137196#true} {137196#true} #247#return; {137196#true} is VALID [2020-07-18 00:20:16,777 INFO L263 TraceCheckUtils]: 0: Hoare triple {137196#true} call ULTIMATE.init(); {137196#true} is VALID [2020-07-18 00:20:16,777 INFO L280 TraceCheckUtils]: 1: Hoare triple {137196#true} assume true; {137196#true} is VALID [2020-07-18 00:20:16,777 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {137196#true} {137196#true} #247#return; {137196#true} is VALID [2020-07-18 00:20:16,777 INFO L263 TraceCheckUtils]: 3: Hoare triple {137196#true} call #t~ret10 := main(); {137196#true} is VALID [2020-07-18 00:20:16,777 INFO L280 TraceCheckUtils]: 4: Hoare triple {137196#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {137196#true} is VALID [2020-07-18 00:20:16,777 INFO L280 TraceCheckUtils]: 5: Hoare triple {137196#true} ~p1~0 := #t~nondet0; {137196#true} is VALID [2020-07-18 00:20:16,778 INFO L280 TraceCheckUtils]: 6: Hoare triple {137196#true} havoc #t~nondet0; {137196#true} is VALID [2020-07-18 00:20:16,778 INFO L280 TraceCheckUtils]: 7: Hoare triple {137196#true} havoc ~lk1~0; {137196#true} is VALID [2020-07-18 00:20:16,778 INFO L280 TraceCheckUtils]: 8: Hoare triple {137196#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {137196#true} is VALID [2020-07-18 00:20:16,778 INFO L280 TraceCheckUtils]: 9: Hoare triple {137196#true} ~p2~0 := #t~nondet1; {137196#true} is VALID [2020-07-18 00:20:16,778 INFO L280 TraceCheckUtils]: 10: Hoare triple {137196#true} havoc #t~nondet1; {137196#true} is VALID [2020-07-18 00:20:16,779 INFO L280 TraceCheckUtils]: 11: Hoare triple {137196#true} havoc ~lk2~0; {137196#true} is VALID [2020-07-18 00:20:16,779 INFO L280 TraceCheckUtils]: 12: Hoare triple {137196#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {137196#true} is VALID [2020-07-18 00:20:16,779 INFO L280 TraceCheckUtils]: 13: Hoare triple {137196#true} ~p3~0 := #t~nondet2; {137196#true} is VALID [2020-07-18 00:20:16,779 INFO L280 TraceCheckUtils]: 14: Hoare triple {137196#true} havoc #t~nondet2; {137196#true} is VALID [2020-07-18 00:20:16,779 INFO L280 TraceCheckUtils]: 15: Hoare triple {137196#true} havoc ~lk3~0; {137196#true} is VALID [2020-07-18 00:20:16,780 INFO L280 TraceCheckUtils]: 16: Hoare triple {137196#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {137196#true} is VALID [2020-07-18 00:20:16,780 INFO L280 TraceCheckUtils]: 17: Hoare triple {137196#true} ~p4~0 := #t~nondet3; {137196#true} is VALID [2020-07-18 00:20:16,780 INFO L280 TraceCheckUtils]: 18: Hoare triple {137196#true} havoc #t~nondet3; {137196#true} is VALID [2020-07-18 00:20:16,780 INFO L280 TraceCheckUtils]: 19: Hoare triple {137196#true} havoc ~lk4~0; {137196#true} is VALID [2020-07-18 00:20:16,780 INFO L280 TraceCheckUtils]: 20: Hoare triple {137196#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {137196#true} is VALID [2020-07-18 00:20:16,780 INFO L280 TraceCheckUtils]: 21: Hoare triple {137196#true} ~p5~0 := #t~nondet4; {137196#true} is VALID [2020-07-18 00:20:16,781 INFO L280 TraceCheckUtils]: 22: Hoare triple {137196#true} havoc #t~nondet4; {137196#true} is VALID [2020-07-18 00:20:16,781 INFO L280 TraceCheckUtils]: 23: Hoare triple {137196#true} havoc ~lk5~0; {137196#true} is VALID [2020-07-18 00:20:16,781 INFO L280 TraceCheckUtils]: 24: Hoare triple {137196#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {137196#true} is VALID [2020-07-18 00:20:16,781 INFO L280 TraceCheckUtils]: 25: Hoare triple {137196#true} ~p6~0 := #t~nondet5; {137196#true} is VALID [2020-07-18 00:20:16,781 INFO L280 TraceCheckUtils]: 26: Hoare triple {137196#true} havoc #t~nondet5; {137196#true} is VALID [2020-07-18 00:20:16,782 INFO L280 TraceCheckUtils]: 27: Hoare triple {137196#true} havoc ~lk6~0; {137196#true} is VALID [2020-07-18 00:20:16,782 INFO L280 TraceCheckUtils]: 28: Hoare triple {137196#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {137196#true} is VALID [2020-07-18 00:20:16,782 INFO L280 TraceCheckUtils]: 29: Hoare triple {137196#true} ~p7~0 := #t~nondet6; {137196#true} is VALID [2020-07-18 00:20:16,782 INFO L280 TraceCheckUtils]: 30: Hoare triple {137196#true} havoc #t~nondet6; {137196#true} is VALID [2020-07-18 00:20:16,782 INFO L280 TraceCheckUtils]: 31: Hoare triple {137196#true} havoc ~lk7~0; {137196#true} is VALID [2020-07-18 00:20:16,783 INFO L280 TraceCheckUtils]: 32: Hoare triple {137196#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {137196#true} is VALID [2020-07-18 00:20:16,783 INFO L280 TraceCheckUtils]: 33: Hoare triple {137196#true} ~p8~0 := #t~nondet7; {137196#true} is VALID [2020-07-18 00:20:16,783 INFO L280 TraceCheckUtils]: 34: Hoare triple {137196#true} havoc #t~nondet7; {137196#true} is VALID [2020-07-18 00:20:16,783 INFO L280 TraceCheckUtils]: 35: Hoare triple {137196#true} havoc ~lk8~0; {137196#true} is VALID [2020-07-18 00:20:16,783 INFO L280 TraceCheckUtils]: 36: Hoare triple {137196#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {137196#true} is VALID [2020-07-18 00:20:16,783 INFO L280 TraceCheckUtils]: 37: Hoare triple {137196#true} ~p9~0 := #t~nondet8; {137196#true} is VALID [2020-07-18 00:20:16,784 INFO L280 TraceCheckUtils]: 38: Hoare triple {137196#true} havoc #t~nondet8; {137196#true} is VALID [2020-07-18 00:20:16,784 INFO L280 TraceCheckUtils]: 39: Hoare triple {137196#true} havoc ~lk9~0; {137196#true} is VALID [2020-07-18 00:20:16,784 INFO L280 TraceCheckUtils]: 40: Hoare triple {137196#true} havoc ~cond~0; {137196#true} is VALID [2020-07-18 00:20:16,784 INFO L280 TraceCheckUtils]: 41: Hoare triple {137196#true} assume !false; {137196#true} is VALID [2020-07-18 00:20:16,784 INFO L280 TraceCheckUtils]: 42: Hoare triple {137196#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {137196#true} is VALID [2020-07-18 00:20:16,785 INFO L280 TraceCheckUtils]: 43: Hoare triple {137196#true} ~cond~0 := #t~nondet9; {137196#true} is VALID [2020-07-18 00:20:16,785 INFO L280 TraceCheckUtils]: 44: Hoare triple {137196#true} havoc #t~nondet9; {137196#true} is VALID [2020-07-18 00:20:16,785 INFO L280 TraceCheckUtils]: 45: Hoare triple {137196#true} assume !(0 == ~cond~0); {137196#true} is VALID [2020-07-18 00:20:16,785 INFO L280 TraceCheckUtils]: 46: Hoare triple {137196#true} ~lk1~0 := 0; {137196#true} is VALID [2020-07-18 00:20:16,785 INFO L280 TraceCheckUtils]: 47: Hoare triple {137196#true} ~lk2~0 := 0; {137196#true} is VALID [2020-07-18 00:20:16,786 INFO L280 TraceCheckUtils]: 48: Hoare triple {137196#true} ~lk3~0 := 0; {137196#true} is VALID [2020-07-18 00:20:16,786 INFO L280 TraceCheckUtils]: 49: Hoare triple {137196#true} ~lk4~0 := 0; {137196#true} is VALID [2020-07-18 00:20:16,786 INFO L280 TraceCheckUtils]: 50: Hoare triple {137196#true} ~lk5~0 := 0; {137196#true} is VALID [2020-07-18 00:20:16,786 INFO L280 TraceCheckUtils]: 51: Hoare triple {137196#true} ~lk6~0 := 0; {137196#true} is VALID [2020-07-18 00:20:16,786 INFO L280 TraceCheckUtils]: 52: Hoare triple {137196#true} ~lk7~0 := 0; {137196#true} is VALID [2020-07-18 00:20:16,787 INFO L280 TraceCheckUtils]: 53: Hoare triple {137196#true} ~lk8~0 := 0; {137196#true} is VALID [2020-07-18 00:20:16,787 INFO L280 TraceCheckUtils]: 54: Hoare triple {137196#true} ~lk9~0 := 0; {137196#true} is VALID [2020-07-18 00:20:16,787 INFO L280 TraceCheckUtils]: 55: Hoare triple {137196#true} assume !(0 != ~p1~0); {137196#true} is VALID [2020-07-18 00:20:16,787 INFO L280 TraceCheckUtils]: 56: Hoare triple {137196#true} assume !(0 != ~p2~0); {137196#true} is VALID [2020-07-18 00:20:16,787 INFO L280 TraceCheckUtils]: 57: Hoare triple {137196#true} assume !(0 != ~p3~0); {137196#true} is VALID [2020-07-18 00:20:16,788 INFO L280 TraceCheckUtils]: 58: Hoare triple {137196#true} assume !(0 != ~p4~0); {137196#true} is VALID [2020-07-18 00:20:16,788 INFO L280 TraceCheckUtils]: 59: Hoare triple {137196#true} assume !(0 != ~p5~0); {137196#true} is VALID [2020-07-18 00:20:16,788 INFO L280 TraceCheckUtils]: 60: Hoare triple {137196#true} assume !(0 != ~p6~0); {137196#true} is VALID [2020-07-18 00:20:16,788 INFO L280 TraceCheckUtils]: 61: Hoare triple {137196#true} assume !(0 != ~p7~0); {137196#true} is VALID [2020-07-18 00:20:16,789 INFO L280 TraceCheckUtils]: 62: Hoare triple {137196#true} assume !(0 != ~p8~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 00:20:16,790 INFO L280 TraceCheckUtils]: 63: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p9~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 00:20:16,790 INFO L280 TraceCheckUtils]: 64: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p1~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 00:20:16,791 INFO L280 TraceCheckUtils]: 65: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p2~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 00:20:16,792 INFO L280 TraceCheckUtils]: 66: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p3~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 00:20:16,792 INFO L280 TraceCheckUtils]: 67: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p4~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 00:20:16,793 INFO L280 TraceCheckUtils]: 68: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p5~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 00:20:16,793 INFO L280 TraceCheckUtils]: 69: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p6~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 00:20:16,794 INFO L280 TraceCheckUtils]: 70: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p7~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-18 00:20:16,795 INFO L280 TraceCheckUtils]: 71: Hoare triple {137200#(= 0 main_~p8~0)} assume 0 != ~p8~0; {137197#false} is VALID [2020-07-18 00:20:16,795 INFO L280 TraceCheckUtils]: 72: Hoare triple {137197#false} assume 1 != ~lk8~0; {137197#false} is VALID [2020-07-18 00:20:16,795 INFO L280 TraceCheckUtils]: 73: Hoare triple {137197#false} assume !false; {137197#false} is VALID [2020-07-18 00:20:16,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:20:16,800 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:20:16,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803203589] [2020-07-18 00:20:16,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:20:16,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:20:16,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314612924] [2020-07-18 00:20:16,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-18 00:20:16,801 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:20:16,802 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:20:16,866 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:20:16,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:20:16,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:20:16,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:20:16,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:20:16,868 INFO L87 Difference]: Start difference. First operand 6251 states and 7978 transitions. Second operand 3 states. [2020-07-18 00:21:17,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:21:17,717 INFO L93 Difference]: Finished difference Result 18287 states and 23340 transitions. [2020-07-18 00:21:17,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:21:17,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-18 00:21:17,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:21:17,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:21:17,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-18 00:21:17,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:21:17,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-18 00:21:17,721 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 280 transitions. [2020-07-18 00:21:17,974 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 280 edges. 280 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:21:23,281 INFO L225 Difference]: With dead ends: 18287 [2020-07-18 00:21:23,281 INFO L226 Difference]: Without dead ends: 12077 [2020-07-18 00:21:23,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:21:23,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12077 states. [2020-07-18 00:22:01,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12077 to 12075. [2020-07-18 00:22:01,066 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:22:01,066 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12077 states. Second operand 12075 states. [2020-07-18 00:22:01,066 INFO L74 IsIncluded]: Start isIncluded. First operand 12077 states. Second operand 12075 states. [2020-07-18 00:22:01,067 INFO L87 Difference]: Start difference. First operand 12077 states. Second operand 12075 states. [2020-07-18 00:22:06,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:22:06,163 INFO L93 Difference]: Finished difference Result 12077 states and 15147 transitions. [2020-07-18 00:22:06,163 INFO L276 IsEmpty]: Start isEmpty. Operand 12077 states and 15147 transitions. [2020-07-18 00:22:06,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:22:06,176 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:22:06,176 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 12077 states. [2020-07-18 00:22:06,176 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 12077 states. [2020-07-18 00:22:11,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:22:11,102 INFO L93 Difference]: Finished difference Result 12077 states and 15147 transitions. [2020-07-18 00:22:11,102 INFO L276 IsEmpty]: Start isEmpty. Operand 12077 states and 15147 transitions. [2020-07-18 00:22:11,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:22:11,110 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:22:11,110 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:22:11,110 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:22:11,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-18 00:22:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 15146 transitions. [2020-07-18 00:22:18,851 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 15146 transitions. Word has length 74 [2020-07-18 00:22:18,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:22:18,851 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 15146 transitions. [2020-07-18 00:22:18,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:22:18,851 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 15146 transitions. [2020-07-18 00:22:40,118 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15146 edges. 15146 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:22:40,119 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 15146 transitions. [2020-07-18 00:22:40,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-18 00:22:40,125 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:22:40,125 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] [2020-07-18 00:22:40,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-18 00:22:40,126 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:22:40,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:22:40,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1143464253, now seen corresponding path program 1 times [2020-07-18 00:22:40,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:22:40,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001260664] [2020-07-18 00:22:40,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:22:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:22:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:22:40,176 INFO L280 TraceCheckUtils]: 0: Hoare triple {222081#true} assume true; {222081#true} is VALID [2020-07-18 00:22:40,177 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {222081#true} {222081#true} #247#return; {222081#true} is VALID [2020-07-18 00:22:40,177 INFO L263 TraceCheckUtils]: 0: Hoare triple {222081#true} call ULTIMATE.init(); {222081#true} is VALID [2020-07-18 00:22:40,177 INFO L280 TraceCheckUtils]: 1: Hoare triple {222081#true} assume true; {222081#true} is VALID [2020-07-18 00:22:40,177 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {222081#true} {222081#true} #247#return; {222081#true} is VALID [2020-07-18 00:22:40,177 INFO L263 TraceCheckUtils]: 3: Hoare triple {222081#true} call #t~ret10 := main(); {222081#true} is VALID [2020-07-18 00:22:40,178 INFO L280 TraceCheckUtils]: 4: Hoare triple {222081#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {222081#true} is VALID [2020-07-18 00:22:40,178 INFO L280 TraceCheckUtils]: 5: Hoare triple {222081#true} ~p1~0 := #t~nondet0; {222081#true} is VALID [2020-07-18 00:22:40,178 INFO L280 TraceCheckUtils]: 6: Hoare triple {222081#true} havoc #t~nondet0; {222081#true} is VALID [2020-07-18 00:22:40,178 INFO L280 TraceCheckUtils]: 7: Hoare triple {222081#true} havoc ~lk1~0; {222081#true} is VALID [2020-07-18 00:22:40,178 INFO L280 TraceCheckUtils]: 8: Hoare triple {222081#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {222081#true} is VALID [2020-07-18 00:22:40,179 INFO L280 TraceCheckUtils]: 9: Hoare triple {222081#true} ~p2~0 := #t~nondet1; {222081#true} is VALID [2020-07-18 00:22:40,179 INFO L280 TraceCheckUtils]: 10: Hoare triple {222081#true} havoc #t~nondet1; {222081#true} is VALID [2020-07-18 00:22:40,179 INFO L280 TraceCheckUtils]: 11: Hoare triple {222081#true} havoc ~lk2~0; {222081#true} is VALID [2020-07-18 00:22:40,179 INFO L280 TraceCheckUtils]: 12: Hoare triple {222081#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {222081#true} is VALID [2020-07-18 00:22:40,179 INFO L280 TraceCheckUtils]: 13: Hoare triple {222081#true} ~p3~0 := #t~nondet2; {222081#true} is VALID [2020-07-18 00:22:40,180 INFO L280 TraceCheckUtils]: 14: Hoare triple {222081#true} havoc #t~nondet2; {222081#true} is VALID [2020-07-18 00:22:40,180 INFO L280 TraceCheckUtils]: 15: Hoare triple {222081#true} havoc ~lk3~0; {222081#true} is VALID [2020-07-18 00:22:40,180 INFO L280 TraceCheckUtils]: 16: Hoare triple {222081#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {222081#true} is VALID [2020-07-18 00:22:40,180 INFO L280 TraceCheckUtils]: 17: Hoare triple {222081#true} ~p4~0 := #t~nondet3; {222081#true} is VALID [2020-07-18 00:22:40,180 INFO L280 TraceCheckUtils]: 18: Hoare triple {222081#true} havoc #t~nondet3; {222081#true} is VALID [2020-07-18 00:22:40,181 INFO L280 TraceCheckUtils]: 19: Hoare triple {222081#true} havoc ~lk4~0; {222081#true} is VALID [2020-07-18 00:22:40,181 INFO L280 TraceCheckUtils]: 20: Hoare triple {222081#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {222081#true} is VALID [2020-07-18 00:22:40,181 INFO L280 TraceCheckUtils]: 21: Hoare triple {222081#true} ~p5~0 := #t~nondet4; {222081#true} is VALID [2020-07-18 00:22:40,181 INFO L280 TraceCheckUtils]: 22: Hoare triple {222081#true} havoc #t~nondet4; {222081#true} is VALID [2020-07-18 00:22:40,181 INFO L280 TraceCheckUtils]: 23: Hoare triple {222081#true} havoc ~lk5~0; {222081#true} is VALID [2020-07-18 00:22:40,182 INFO L280 TraceCheckUtils]: 24: Hoare triple {222081#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {222081#true} is VALID [2020-07-18 00:22:40,182 INFO L280 TraceCheckUtils]: 25: Hoare triple {222081#true} ~p6~0 := #t~nondet5; {222081#true} is VALID [2020-07-18 00:22:40,182 INFO L280 TraceCheckUtils]: 26: Hoare triple {222081#true} havoc #t~nondet5; {222081#true} is VALID [2020-07-18 00:22:40,182 INFO L280 TraceCheckUtils]: 27: Hoare triple {222081#true} havoc ~lk6~0; {222081#true} is VALID [2020-07-18 00:22:40,182 INFO L280 TraceCheckUtils]: 28: Hoare triple {222081#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {222081#true} is VALID [2020-07-18 00:22:40,183 INFO L280 TraceCheckUtils]: 29: Hoare triple {222081#true} ~p7~0 := #t~nondet6; {222081#true} is VALID [2020-07-18 00:22:40,183 INFO L280 TraceCheckUtils]: 30: Hoare triple {222081#true} havoc #t~nondet6; {222081#true} is VALID [2020-07-18 00:22:40,183 INFO L280 TraceCheckUtils]: 31: Hoare triple {222081#true} havoc ~lk7~0; {222081#true} is VALID [2020-07-18 00:22:40,183 INFO L280 TraceCheckUtils]: 32: Hoare triple {222081#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {222081#true} is VALID [2020-07-18 00:22:40,183 INFO L280 TraceCheckUtils]: 33: Hoare triple {222081#true} ~p8~0 := #t~nondet7; {222081#true} is VALID [2020-07-18 00:22:40,184 INFO L280 TraceCheckUtils]: 34: Hoare triple {222081#true} havoc #t~nondet7; {222081#true} is VALID [2020-07-18 00:22:40,184 INFO L280 TraceCheckUtils]: 35: Hoare triple {222081#true} havoc ~lk8~0; {222081#true} is VALID [2020-07-18 00:22:40,184 INFO L280 TraceCheckUtils]: 36: Hoare triple {222081#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {222081#true} is VALID [2020-07-18 00:22:40,184 INFO L280 TraceCheckUtils]: 37: Hoare triple {222081#true} ~p9~0 := #t~nondet8; {222081#true} is VALID [2020-07-18 00:22:40,184 INFO L280 TraceCheckUtils]: 38: Hoare triple {222081#true} havoc #t~nondet8; {222081#true} is VALID [2020-07-18 00:22:40,185 INFO L280 TraceCheckUtils]: 39: Hoare triple {222081#true} havoc ~lk9~0; {222081#true} is VALID [2020-07-18 00:22:40,185 INFO L280 TraceCheckUtils]: 40: Hoare triple {222081#true} havoc ~cond~0; {222081#true} is VALID [2020-07-18 00:22:40,185 INFO L280 TraceCheckUtils]: 41: Hoare triple {222081#true} assume !false; {222081#true} is VALID [2020-07-18 00:22:40,185 INFO L280 TraceCheckUtils]: 42: Hoare triple {222081#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {222081#true} is VALID [2020-07-18 00:22:40,185 INFO L280 TraceCheckUtils]: 43: Hoare triple {222081#true} ~cond~0 := #t~nondet9; {222081#true} is VALID [2020-07-18 00:22:40,186 INFO L280 TraceCheckUtils]: 44: Hoare triple {222081#true} havoc #t~nondet9; {222081#true} is VALID [2020-07-18 00:22:40,186 INFO L280 TraceCheckUtils]: 45: Hoare triple {222081#true} assume !(0 == ~cond~0); {222081#true} is VALID [2020-07-18 00:22:40,186 INFO L280 TraceCheckUtils]: 46: Hoare triple {222081#true} ~lk1~0 := 0; {222081#true} is VALID [2020-07-18 00:22:40,186 INFO L280 TraceCheckUtils]: 47: Hoare triple {222081#true} ~lk2~0 := 0; {222081#true} is VALID [2020-07-18 00:22:40,186 INFO L280 TraceCheckUtils]: 48: Hoare triple {222081#true} ~lk3~0 := 0; {222081#true} is VALID [2020-07-18 00:22:40,187 INFO L280 TraceCheckUtils]: 49: Hoare triple {222081#true} ~lk4~0 := 0; {222081#true} is VALID [2020-07-18 00:22:40,187 INFO L280 TraceCheckUtils]: 50: Hoare triple {222081#true} ~lk5~0 := 0; {222081#true} is VALID [2020-07-18 00:22:40,187 INFO L280 TraceCheckUtils]: 51: Hoare triple {222081#true} ~lk6~0 := 0; {222081#true} is VALID [2020-07-18 00:22:40,187 INFO L280 TraceCheckUtils]: 52: Hoare triple {222081#true} ~lk7~0 := 0; {222081#true} is VALID [2020-07-18 00:22:40,187 INFO L280 TraceCheckUtils]: 53: Hoare triple {222081#true} ~lk8~0 := 0; {222081#true} is VALID [2020-07-18 00:22:40,188 INFO L280 TraceCheckUtils]: 54: Hoare triple {222081#true} ~lk9~0 := 0; {222081#true} is VALID [2020-07-18 00:22:40,188 INFO L280 TraceCheckUtils]: 55: Hoare triple {222081#true} assume !(0 != ~p1~0); {222081#true} is VALID [2020-07-18 00:22:40,188 INFO L280 TraceCheckUtils]: 56: Hoare triple {222081#true} assume !(0 != ~p2~0); {222081#true} is VALID [2020-07-18 00:22:40,188 INFO L280 TraceCheckUtils]: 57: Hoare triple {222081#true} assume !(0 != ~p3~0); {222081#true} is VALID [2020-07-18 00:22:40,188 INFO L280 TraceCheckUtils]: 58: Hoare triple {222081#true} assume !(0 != ~p4~0); {222081#true} is VALID [2020-07-18 00:22:40,189 INFO L280 TraceCheckUtils]: 59: Hoare triple {222081#true} assume !(0 != ~p5~0); {222081#true} is VALID [2020-07-18 00:22:40,189 INFO L280 TraceCheckUtils]: 60: Hoare triple {222081#true} assume !(0 != ~p6~0); {222081#true} is VALID [2020-07-18 00:22:40,189 INFO L280 TraceCheckUtils]: 61: Hoare triple {222081#true} assume 0 != ~p7~0; {222081#true} is VALID [2020-07-18 00:22:40,190 INFO L280 TraceCheckUtils]: 62: Hoare triple {222081#true} ~lk7~0 := 1; {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 00:22:40,195 INFO L280 TraceCheckUtils]: 63: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p8~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 00:22:40,195 INFO L280 TraceCheckUtils]: 64: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p9~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 00:22:40,196 INFO L280 TraceCheckUtils]: 65: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p1~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 00:22:40,196 INFO L280 TraceCheckUtils]: 66: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p2~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 00:22:40,197 INFO L280 TraceCheckUtils]: 67: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p3~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 00:22:40,197 INFO L280 TraceCheckUtils]: 68: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p4~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 00:22:40,198 INFO L280 TraceCheckUtils]: 69: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p5~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 00:22:40,198 INFO L280 TraceCheckUtils]: 70: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p6~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 00:22:40,199 INFO L280 TraceCheckUtils]: 71: Hoare triple {222085#(= main_~lk7~0 1)} assume 0 != ~p7~0; {222085#(= main_~lk7~0 1)} is VALID [2020-07-18 00:22:40,200 INFO L280 TraceCheckUtils]: 72: Hoare triple {222085#(= main_~lk7~0 1)} assume 1 != ~lk7~0; {222082#false} is VALID [2020-07-18 00:22:40,200 INFO L280 TraceCheckUtils]: 73: Hoare triple {222082#false} assume !false; {222082#false} is VALID [2020-07-18 00:22:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:22:40,206 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:22:40,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001260664] [2020-07-18 00:22:40,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:22:40,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:22:40,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128145101] [2020-07-18 00:22:40,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-18 00:22:40,208 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:22:40,208 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:22:40,265 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:22:40,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:22:40,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:22:40,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:22:40,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:22:40,266 INFO L87 Difference]: Start difference. First operand 12075 states and 15146 transitions. Second operand 3 states. [2020-07-18 00:23:38,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:38,808 INFO L93 Difference]: Finished difference Result 14255 states and 17708 transitions. [2020-07-18 00:23:38,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:23:38,809 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-18 00:23:38,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:23:38,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:23:38,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2020-07-18 00:23:38,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:23:38,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2020-07-18 00:23:38,812 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 177 transitions. [2020-07-18 00:23:38,976 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 177 edges. 177 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:47,553 INFO L225 Difference]: With dead ends: 14255 [2020-07-18 00:23:47,553 INFO L226 Difference]: Without dead ends: 14253 [2020-07-18 00:23:47,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:23:47,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14253 states. [2020-07-18 00:24:31,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14253 to 12075. [2020-07-18 00:24:31,413 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:24:31,413 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14253 states. Second operand 12075 states. [2020-07-18 00:24:31,413 INFO L74 IsIncluded]: Start isIncluded. First operand 14253 states. Second operand 12075 states. [2020-07-18 00:24:31,414 INFO L87 Difference]: Start difference. First operand 14253 states. Second operand 12075 states. [2020-07-18 00:24:40,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:40,794 INFO L93 Difference]: Finished difference Result 14253 states and 17579 transitions. [2020-07-18 00:24:40,794 INFO L276 IsEmpty]: Start isEmpty. Operand 14253 states and 17579 transitions. [2020-07-18 00:24:40,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:24:40,803 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:24:40,803 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 14253 states. [2020-07-18 00:24:40,803 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 14253 states. [2020-07-18 00:24:50,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:50,155 INFO L93 Difference]: Finished difference Result 14253 states and 17579 transitions. [2020-07-18 00:24:50,156 INFO L276 IsEmpty]: Start isEmpty. Operand 14253 states and 17579 transitions. [2020-07-18 00:24:50,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:24:50,167 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:24:50,167 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:24:50,168 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:24:50,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-18 00:24:56,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 15018 transitions. [2020-07-18 00:24:56,251 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 15018 transitions. Word has length 74 [2020-07-18 00:24:56,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:24:56,251 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 15018 transitions. [2020-07-18 00:24:56,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:24:56,251 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 15018 transitions. [2020-07-18 00:25:17,568 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15018 edges. 15018 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:25:17,569 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 15018 transitions. [2020-07-18 00:25:17,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-18 00:25:17,574 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:25:17,574 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] [2020-07-18 00:25:17,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-18 00:25:17,574 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:25:17,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:25:17,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1847607922, now seen corresponding path program 1 times [2020-07-18 00:25:17,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:25:17,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1018795949] [2020-07-18 00:25:17,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:25:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:25:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:25:17,626 INFO L280 TraceCheckUtils]: 0: Hoare triple {303254#true} assume true; {303254#true} is VALID [2020-07-18 00:25:17,627 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {303254#true} {303254#true} #247#return; {303254#true} is VALID [2020-07-18 00:25:17,627 INFO L263 TraceCheckUtils]: 0: Hoare triple {303254#true} call ULTIMATE.init(); {303254#true} is VALID [2020-07-18 00:25:17,627 INFO L280 TraceCheckUtils]: 1: Hoare triple {303254#true} assume true; {303254#true} is VALID [2020-07-18 00:25:17,628 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {303254#true} {303254#true} #247#return; {303254#true} is VALID [2020-07-18 00:25:17,628 INFO L263 TraceCheckUtils]: 3: Hoare triple {303254#true} call #t~ret10 := main(); {303254#true} is VALID [2020-07-18 00:25:17,628 INFO L280 TraceCheckUtils]: 4: Hoare triple {303254#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {303254#true} is VALID [2020-07-18 00:25:17,628 INFO L280 TraceCheckUtils]: 5: Hoare triple {303254#true} ~p1~0 := #t~nondet0; {303254#true} is VALID [2020-07-18 00:25:17,628 INFO L280 TraceCheckUtils]: 6: Hoare triple {303254#true} havoc #t~nondet0; {303254#true} is VALID [2020-07-18 00:25:17,629 INFO L280 TraceCheckUtils]: 7: Hoare triple {303254#true} havoc ~lk1~0; {303254#true} is VALID [2020-07-18 00:25:17,629 INFO L280 TraceCheckUtils]: 8: Hoare triple {303254#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {303254#true} is VALID [2020-07-18 00:25:17,629 INFO L280 TraceCheckUtils]: 9: Hoare triple {303254#true} ~p2~0 := #t~nondet1; {303254#true} is VALID [2020-07-18 00:25:17,629 INFO L280 TraceCheckUtils]: 10: Hoare triple {303254#true} havoc #t~nondet1; {303254#true} is VALID [2020-07-18 00:25:17,629 INFO L280 TraceCheckUtils]: 11: Hoare triple {303254#true} havoc ~lk2~0; {303254#true} is VALID [2020-07-18 00:25:17,629 INFO L280 TraceCheckUtils]: 12: Hoare triple {303254#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {303254#true} is VALID [2020-07-18 00:25:17,630 INFO L280 TraceCheckUtils]: 13: Hoare triple {303254#true} ~p3~0 := #t~nondet2; {303254#true} is VALID [2020-07-18 00:25:17,630 INFO L280 TraceCheckUtils]: 14: Hoare triple {303254#true} havoc #t~nondet2; {303254#true} is VALID [2020-07-18 00:25:17,630 INFO L280 TraceCheckUtils]: 15: Hoare triple {303254#true} havoc ~lk3~0; {303254#true} is VALID [2020-07-18 00:25:17,630 INFO L280 TraceCheckUtils]: 16: Hoare triple {303254#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {303254#true} is VALID [2020-07-18 00:25:17,630 INFO L280 TraceCheckUtils]: 17: Hoare triple {303254#true} ~p4~0 := #t~nondet3; {303254#true} is VALID [2020-07-18 00:25:17,631 INFO L280 TraceCheckUtils]: 18: Hoare triple {303254#true} havoc #t~nondet3; {303254#true} is VALID [2020-07-18 00:25:17,631 INFO L280 TraceCheckUtils]: 19: Hoare triple {303254#true} havoc ~lk4~0; {303254#true} is VALID [2020-07-18 00:25:17,631 INFO L280 TraceCheckUtils]: 20: Hoare triple {303254#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {303254#true} is VALID [2020-07-18 00:25:17,631 INFO L280 TraceCheckUtils]: 21: Hoare triple {303254#true} ~p5~0 := #t~nondet4; {303254#true} is VALID [2020-07-18 00:25:17,631 INFO L280 TraceCheckUtils]: 22: Hoare triple {303254#true} havoc #t~nondet4; {303254#true} is VALID [2020-07-18 00:25:17,632 INFO L280 TraceCheckUtils]: 23: Hoare triple {303254#true} havoc ~lk5~0; {303254#true} is VALID [2020-07-18 00:25:17,632 INFO L280 TraceCheckUtils]: 24: Hoare triple {303254#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {303254#true} is VALID [2020-07-18 00:25:17,632 INFO L280 TraceCheckUtils]: 25: Hoare triple {303254#true} ~p6~0 := #t~nondet5; {303254#true} is VALID [2020-07-18 00:25:17,632 INFO L280 TraceCheckUtils]: 26: Hoare triple {303254#true} havoc #t~nondet5; {303254#true} is VALID [2020-07-18 00:25:17,632 INFO L280 TraceCheckUtils]: 27: Hoare triple {303254#true} havoc ~lk6~0; {303254#true} is VALID [2020-07-18 00:25:17,633 INFO L280 TraceCheckUtils]: 28: Hoare triple {303254#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {303254#true} is VALID [2020-07-18 00:25:17,633 INFO L280 TraceCheckUtils]: 29: Hoare triple {303254#true} ~p7~0 := #t~nondet6; {303254#true} is VALID [2020-07-18 00:25:17,633 INFO L280 TraceCheckUtils]: 30: Hoare triple {303254#true} havoc #t~nondet6; {303254#true} is VALID [2020-07-18 00:25:17,633 INFO L280 TraceCheckUtils]: 31: Hoare triple {303254#true} havoc ~lk7~0; {303254#true} is VALID [2020-07-18 00:25:17,633 INFO L280 TraceCheckUtils]: 32: Hoare triple {303254#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {303254#true} is VALID [2020-07-18 00:25:17,633 INFO L280 TraceCheckUtils]: 33: Hoare triple {303254#true} ~p8~0 := #t~nondet7; {303254#true} is VALID [2020-07-18 00:25:17,634 INFO L280 TraceCheckUtils]: 34: Hoare triple {303254#true} havoc #t~nondet7; {303254#true} is VALID [2020-07-18 00:25:17,634 INFO L280 TraceCheckUtils]: 35: Hoare triple {303254#true} havoc ~lk8~0; {303254#true} is VALID [2020-07-18 00:25:17,634 INFO L280 TraceCheckUtils]: 36: Hoare triple {303254#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {303254#true} is VALID [2020-07-18 00:25:17,634 INFO L280 TraceCheckUtils]: 37: Hoare triple {303254#true} ~p9~0 := #t~nondet8; {303254#true} is VALID [2020-07-18 00:25:17,634 INFO L280 TraceCheckUtils]: 38: Hoare triple {303254#true} havoc #t~nondet8; {303254#true} is VALID [2020-07-18 00:25:17,635 INFO L280 TraceCheckUtils]: 39: Hoare triple {303254#true} havoc ~lk9~0; {303254#true} is VALID [2020-07-18 00:25:17,635 INFO L280 TraceCheckUtils]: 40: Hoare triple {303254#true} havoc ~cond~0; {303254#true} is VALID [2020-07-18 00:25:17,635 INFO L280 TraceCheckUtils]: 41: Hoare triple {303254#true} assume !false; {303254#true} is VALID [2020-07-18 00:25:17,635 INFO L280 TraceCheckUtils]: 42: Hoare triple {303254#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {303254#true} is VALID [2020-07-18 00:25:17,636 INFO L280 TraceCheckUtils]: 43: Hoare triple {303254#true} ~cond~0 := #t~nondet9; {303254#true} is VALID [2020-07-18 00:25:17,636 INFO L280 TraceCheckUtils]: 44: Hoare triple {303254#true} havoc #t~nondet9; {303254#true} is VALID [2020-07-18 00:25:17,636 INFO L280 TraceCheckUtils]: 45: Hoare triple {303254#true} assume !(0 == ~cond~0); {303254#true} is VALID [2020-07-18 00:25:17,636 INFO L280 TraceCheckUtils]: 46: Hoare triple {303254#true} ~lk1~0 := 0; {303254#true} is VALID [2020-07-18 00:25:17,636 INFO L280 TraceCheckUtils]: 47: Hoare triple {303254#true} ~lk2~0 := 0; {303254#true} is VALID [2020-07-18 00:25:17,637 INFO L280 TraceCheckUtils]: 48: Hoare triple {303254#true} ~lk3~0 := 0; {303254#true} is VALID [2020-07-18 00:25:17,637 INFO L280 TraceCheckUtils]: 49: Hoare triple {303254#true} ~lk4~0 := 0; {303254#true} is VALID [2020-07-18 00:25:17,637 INFO L280 TraceCheckUtils]: 50: Hoare triple {303254#true} ~lk5~0 := 0; {303254#true} is VALID [2020-07-18 00:25:17,637 INFO L280 TraceCheckUtils]: 51: Hoare triple {303254#true} ~lk6~0 := 0; {303254#true} is VALID [2020-07-18 00:25:17,637 INFO L280 TraceCheckUtils]: 52: Hoare triple {303254#true} ~lk7~0 := 0; {303254#true} is VALID [2020-07-18 00:25:17,638 INFO L280 TraceCheckUtils]: 53: Hoare triple {303254#true} ~lk8~0 := 0; {303254#true} is VALID [2020-07-18 00:25:17,638 INFO L280 TraceCheckUtils]: 54: Hoare triple {303254#true} ~lk9~0 := 0; {303254#true} is VALID [2020-07-18 00:25:17,638 INFO L280 TraceCheckUtils]: 55: Hoare triple {303254#true} assume !(0 != ~p1~0); {303254#true} is VALID [2020-07-18 00:25:17,638 INFO L280 TraceCheckUtils]: 56: Hoare triple {303254#true} assume !(0 != ~p2~0); {303254#true} is VALID [2020-07-18 00:25:17,638 INFO L280 TraceCheckUtils]: 57: Hoare triple {303254#true} assume !(0 != ~p3~0); {303254#true} is VALID [2020-07-18 00:25:17,638 INFO L280 TraceCheckUtils]: 58: Hoare triple {303254#true} assume !(0 != ~p4~0); {303254#true} is VALID [2020-07-18 00:25:17,639 INFO L280 TraceCheckUtils]: 59: Hoare triple {303254#true} assume !(0 != ~p5~0); {303254#true} is VALID [2020-07-18 00:25:17,639 INFO L280 TraceCheckUtils]: 60: Hoare triple {303254#true} assume !(0 != ~p6~0); {303254#true} is VALID [2020-07-18 00:25:17,639 INFO L280 TraceCheckUtils]: 61: Hoare triple {303254#true} assume !(0 != ~p7~0); {303254#true} is VALID [2020-07-18 00:25:17,639 INFO L280 TraceCheckUtils]: 62: Hoare triple {303254#true} assume 0 != ~p8~0; {303254#true} is VALID [2020-07-18 00:25:17,641 INFO L280 TraceCheckUtils]: 63: Hoare triple {303254#true} ~lk8~0 := 1; {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 00:25:17,641 INFO L280 TraceCheckUtils]: 64: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p9~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 00:25:17,642 INFO L280 TraceCheckUtils]: 65: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p1~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 00:25:17,642 INFO L280 TraceCheckUtils]: 66: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p2~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 00:25:17,643 INFO L280 TraceCheckUtils]: 67: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p3~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 00:25:17,643 INFO L280 TraceCheckUtils]: 68: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p4~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 00:25:17,644 INFO L280 TraceCheckUtils]: 69: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p5~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 00:25:17,644 INFO L280 TraceCheckUtils]: 70: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p6~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 00:25:17,645 INFO L280 TraceCheckUtils]: 71: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p7~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 00:25:17,645 INFO L280 TraceCheckUtils]: 72: Hoare triple {303258#(= 1 main_~lk8~0)} assume 0 != ~p8~0; {303258#(= 1 main_~lk8~0)} is VALID [2020-07-18 00:25:17,646 INFO L280 TraceCheckUtils]: 73: Hoare triple {303258#(= 1 main_~lk8~0)} assume 1 != ~lk8~0; {303255#false} is VALID [2020-07-18 00:25:17,646 INFO L280 TraceCheckUtils]: 74: Hoare triple {303255#false} assume !false; {303255#false} is VALID [2020-07-18 00:25:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:25:17,651 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:25:17,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1018795949] [2020-07-18 00:25:17,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:25:17,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:25:17,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281581839] [2020-07-18 00:25:17,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-18 00:25:17,652 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:25:17,652 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:25:17,718 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:25:17,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:25:17,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:25:17,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:25:17,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:25:17,718 INFO L87 Difference]: Start difference. First operand 12075 states and 15018 transitions. Second operand 3 states. [2020-07-18 00:26:24,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:26:24,559 INFO L93 Difference]: Finished difference Result 14127 states and 17324 transitions. [2020-07-18 00:26:24,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:26:24,559 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-18 00:26:24,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:26:24,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:26:24,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2020-07-18 00:26:24,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:26:24,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2020-07-18 00:26:24,562 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 173 transitions. [2020-07-18 00:26:24,724 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:26:35,555 INFO L225 Difference]: With dead ends: 14127 [2020-07-18 00:26:35,556 INFO L226 Difference]: Without dead ends: 14125 [2020-07-18 00:26:35,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:26:35,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14125 states. [2020-07-18 00:27:24,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14125 to 12075. [2020-07-18 00:27:24,514 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:27:24,514 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14125 states. Second operand 12075 states. [2020-07-18 00:27:24,515 INFO L74 IsIncluded]: Start isIncluded. First operand 14125 states. Second operand 12075 states. [2020-07-18 00:27:24,515 INFO L87 Difference]: Start difference. First operand 14125 states. Second operand 12075 states. [2020-07-18 00:27:31,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:27:31,496 INFO L93 Difference]: Finished difference Result 14125 states and 17195 transitions. [2020-07-18 00:27:31,496 INFO L276 IsEmpty]: Start isEmpty. Operand 14125 states and 17195 transitions. [2020-07-18 00:27:31,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:27:31,509 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:27:31,509 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 14125 states. [2020-07-18 00:27:31,509 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 14125 states. [2020-07-18 00:27:38,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:27:38,402 INFO L93 Difference]: Finished difference Result 14125 states and 17195 transitions. [2020-07-18 00:27:38,403 INFO L276 IsEmpty]: Start isEmpty. Operand 14125 states and 17195 transitions. [2020-07-18 00:27:38,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:27:38,411 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:27:38,411 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:27:38,411 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:27:38,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-18 00:27:43,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 14890 transitions. [2020-07-18 00:27:43,601 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 14890 transitions. Word has length 75 [2020-07-18 00:27:43,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:27:43,602 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 14890 transitions. [2020-07-18 00:27:43,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:27:43,602 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 14890 transitions. [2020-07-18 00:28:04,911 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14890 edges. 14890 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:28:04,912 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 14890 transitions. [2020-07-18 00:28:04,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-18 00:28:04,917 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:28:04,917 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] [2020-07-18 00:28:04,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-18 00:28:04,918 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:28:04,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:28:04,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1321782988, now seen corresponding path program 1 times [2020-07-18 00:28:04,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:28:04,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077341133] [2020-07-18 00:28:04,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:28:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:28:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:28:04,958 INFO L280 TraceCheckUtils]: 0: Hoare triple {383915#true} assume true; {383915#true} is VALID [2020-07-18 00:28:04,959 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {383915#true} {383915#true} #247#return; {383915#true} is VALID [2020-07-18 00:28:04,959 INFO L263 TraceCheckUtils]: 0: Hoare triple {383915#true} call ULTIMATE.init(); {383915#true} is VALID [2020-07-18 00:28:04,959 INFO L280 TraceCheckUtils]: 1: Hoare triple {383915#true} assume true; {383915#true} is VALID [2020-07-18 00:28:04,959 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {383915#true} {383915#true} #247#return; {383915#true} is VALID [2020-07-18 00:28:04,959 INFO L263 TraceCheckUtils]: 3: Hoare triple {383915#true} call #t~ret10 := main(); {383915#true} is VALID [2020-07-18 00:28:04,959 INFO L280 TraceCheckUtils]: 4: Hoare triple {383915#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {383915#true} is VALID [2020-07-18 00:28:04,960 INFO L280 TraceCheckUtils]: 5: Hoare triple {383915#true} ~p1~0 := #t~nondet0; {383915#true} is VALID [2020-07-18 00:28:04,960 INFO L280 TraceCheckUtils]: 6: Hoare triple {383915#true} havoc #t~nondet0; {383915#true} is VALID [2020-07-18 00:28:04,960 INFO L280 TraceCheckUtils]: 7: Hoare triple {383915#true} havoc ~lk1~0; {383915#true} is VALID [2020-07-18 00:28:04,960 INFO L280 TraceCheckUtils]: 8: Hoare triple {383915#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {383915#true} is VALID [2020-07-18 00:28:04,960 INFO L280 TraceCheckUtils]: 9: Hoare triple {383915#true} ~p2~0 := #t~nondet1; {383915#true} is VALID [2020-07-18 00:28:04,960 INFO L280 TraceCheckUtils]: 10: Hoare triple {383915#true} havoc #t~nondet1; {383915#true} is VALID [2020-07-18 00:28:04,960 INFO L280 TraceCheckUtils]: 11: Hoare triple {383915#true} havoc ~lk2~0; {383915#true} is VALID [2020-07-18 00:28:04,960 INFO L280 TraceCheckUtils]: 12: Hoare triple {383915#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {383915#true} is VALID [2020-07-18 00:28:04,961 INFO L280 TraceCheckUtils]: 13: Hoare triple {383915#true} ~p3~0 := #t~nondet2; {383915#true} is VALID [2020-07-18 00:28:04,961 INFO L280 TraceCheckUtils]: 14: Hoare triple {383915#true} havoc #t~nondet2; {383915#true} is VALID [2020-07-18 00:28:04,961 INFO L280 TraceCheckUtils]: 15: Hoare triple {383915#true} havoc ~lk3~0; {383915#true} is VALID [2020-07-18 00:28:04,961 INFO L280 TraceCheckUtils]: 16: Hoare triple {383915#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {383915#true} is VALID [2020-07-18 00:28:04,961 INFO L280 TraceCheckUtils]: 17: Hoare triple {383915#true} ~p4~0 := #t~nondet3; {383915#true} is VALID [2020-07-18 00:28:04,961 INFO L280 TraceCheckUtils]: 18: Hoare triple {383915#true} havoc #t~nondet3; {383915#true} is VALID [2020-07-18 00:28:04,961 INFO L280 TraceCheckUtils]: 19: Hoare triple {383915#true} havoc ~lk4~0; {383915#true} is VALID [2020-07-18 00:28:04,961 INFO L280 TraceCheckUtils]: 20: Hoare triple {383915#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {383915#true} is VALID [2020-07-18 00:28:04,962 INFO L280 TraceCheckUtils]: 21: Hoare triple {383915#true} ~p5~0 := #t~nondet4; {383915#true} is VALID [2020-07-18 00:28:04,962 INFO L280 TraceCheckUtils]: 22: Hoare triple {383915#true} havoc #t~nondet4; {383915#true} is VALID [2020-07-18 00:28:04,962 INFO L280 TraceCheckUtils]: 23: Hoare triple {383915#true} havoc ~lk5~0; {383915#true} is VALID [2020-07-18 00:28:04,962 INFO L280 TraceCheckUtils]: 24: Hoare triple {383915#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {383915#true} is VALID [2020-07-18 00:28:04,962 INFO L280 TraceCheckUtils]: 25: Hoare triple {383915#true} ~p6~0 := #t~nondet5; {383915#true} is VALID [2020-07-18 00:28:04,962 INFO L280 TraceCheckUtils]: 26: Hoare triple {383915#true} havoc #t~nondet5; {383915#true} is VALID [2020-07-18 00:28:04,962 INFO L280 TraceCheckUtils]: 27: Hoare triple {383915#true} havoc ~lk6~0; {383915#true} is VALID [2020-07-18 00:28:04,963 INFO L280 TraceCheckUtils]: 28: Hoare triple {383915#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {383915#true} is VALID [2020-07-18 00:28:04,963 INFO L280 TraceCheckUtils]: 29: Hoare triple {383915#true} ~p7~0 := #t~nondet6; {383915#true} is VALID [2020-07-18 00:28:04,963 INFO L280 TraceCheckUtils]: 30: Hoare triple {383915#true} havoc #t~nondet6; {383915#true} is VALID [2020-07-18 00:28:04,963 INFO L280 TraceCheckUtils]: 31: Hoare triple {383915#true} havoc ~lk7~0; {383915#true} is VALID [2020-07-18 00:28:04,963 INFO L280 TraceCheckUtils]: 32: Hoare triple {383915#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {383915#true} is VALID [2020-07-18 00:28:04,963 INFO L280 TraceCheckUtils]: 33: Hoare triple {383915#true} ~p8~0 := #t~nondet7; {383915#true} is VALID [2020-07-18 00:28:04,964 INFO L280 TraceCheckUtils]: 34: Hoare triple {383915#true} havoc #t~nondet7; {383915#true} is VALID [2020-07-18 00:28:04,964 INFO L280 TraceCheckUtils]: 35: Hoare triple {383915#true} havoc ~lk8~0; {383915#true} is VALID [2020-07-18 00:28:04,964 INFO L280 TraceCheckUtils]: 36: Hoare triple {383915#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {383915#true} is VALID [2020-07-18 00:28:04,964 INFO L280 TraceCheckUtils]: 37: Hoare triple {383915#true} ~p9~0 := #t~nondet8; {383915#true} is VALID [2020-07-18 00:28:04,964 INFO L280 TraceCheckUtils]: 38: Hoare triple {383915#true} havoc #t~nondet8; {383915#true} is VALID [2020-07-18 00:28:04,964 INFO L280 TraceCheckUtils]: 39: Hoare triple {383915#true} havoc ~lk9~0; {383915#true} is VALID [2020-07-18 00:28:04,964 INFO L280 TraceCheckUtils]: 40: Hoare triple {383915#true} havoc ~cond~0; {383915#true} is VALID [2020-07-18 00:28:04,964 INFO L280 TraceCheckUtils]: 41: Hoare triple {383915#true} assume !false; {383915#true} is VALID [2020-07-18 00:28:04,965 INFO L280 TraceCheckUtils]: 42: Hoare triple {383915#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {383915#true} is VALID [2020-07-18 00:28:04,965 INFO L280 TraceCheckUtils]: 43: Hoare triple {383915#true} ~cond~0 := #t~nondet9; {383915#true} is VALID [2020-07-18 00:28:04,965 INFO L280 TraceCheckUtils]: 44: Hoare triple {383915#true} havoc #t~nondet9; {383915#true} is VALID [2020-07-18 00:28:04,965 INFO L280 TraceCheckUtils]: 45: Hoare triple {383915#true} assume !(0 == ~cond~0); {383915#true} is VALID [2020-07-18 00:28:04,965 INFO L280 TraceCheckUtils]: 46: Hoare triple {383915#true} ~lk1~0 := 0; {383915#true} is VALID [2020-07-18 00:28:04,965 INFO L280 TraceCheckUtils]: 47: Hoare triple {383915#true} ~lk2~0 := 0; {383915#true} is VALID [2020-07-18 00:28:04,965 INFO L280 TraceCheckUtils]: 48: Hoare triple {383915#true} ~lk3~0 := 0; {383915#true} is VALID [2020-07-18 00:28:04,965 INFO L280 TraceCheckUtils]: 49: Hoare triple {383915#true} ~lk4~0 := 0; {383915#true} is VALID [2020-07-18 00:28:04,966 INFO L280 TraceCheckUtils]: 50: Hoare triple {383915#true} ~lk5~0 := 0; {383915#true} is VALID [2020-07-18 00:28:04,966 INFO L280 TraceCheckUtils]: 51: Hoare triple {383915#true} ~lk6~0 := 0; {383915#true} is VALID [2020-07-18 00:28:04,966 INFO L280 TraceCheckUtils]: 52: Hoare triple {383915#true} ~lk7~0 := 0; {383915#true} is VALID [2020-07-18 00:28:04,966 INFO L280 TraceCheckUtils]: 53: Hoare triple {383915#true} ~lk8~0 := 0; {383915#true} is VALID [2020-07-18 00:28:04,966 INFO L280 TraceCheckUtils]: 54: Hoare triple {383915#true} ~lk9~0 := 0; {383915#true} is VALID [2020-07-18 00:28:04,966 INFO L280 TraceCheckUtils]: 55: Hoare triple {383915#true} assume !(0 != ~p1~0); {383915#true} is VALID [2020-07-18 00:28:04,966 INFO L280 TraceCheckUtils]: 56: Hoare triple {383915#true} assume !(0 != ~p2~0); {383915#true} is VALID [2020-07-18 00:28:04,966 INFO L280 TraceCheckUtils]: 57: Hoare triple {383915#true} assume !(0 != ~p3~0); {383915#true} is VALID [2020-07-18 00:28:04,967 INFO L280 TraceCheckUtils]: 58: Hoare triple {383915#true} assume !(0 != ~p4~0); {383915#true} is VALID [2020-07-18 00:28:04,967 INFO L280 TraceCheckUtils]: 59: Hoare triple {383915#true} assume !(0 != ~p5~0); {383915#true} is VALID [2020-07-18 00:28:04,967 INFO L280 TraceCheckUtils]: 60: Hoare triple {383915#true} assume !(0 != ~p6~0); {383915#true} is VALID [2020-07-18 00:28:04,967 INFO L280 TraceCheckUtils]: 61: Hoare triple {383915#true} assume !(0 != ~p7~0); {383915#true} is VALID [2020-07-18 00:28:04,967 INFO L280 TraceCheckUtils]: 62: Hoare triple {383915#true} assume !(0 != ~p8~0); {383915#true} is VALID [2020-07-18 00:28:04,968 INFO L280 TraceCheckUtils]: 63: Hoare triple {383915#true} assume !(0 != ~p9~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 00:28:04,968 INFO L280 TraceCheckUtils]: 64: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p1~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 00:28:04,968 INFO L280 TraceCheckUtils]: 65: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p2~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 00:28:04,969 INFO L280 TraceCheckUtils]: 66: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p3~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 00:28:04,969 INFO L280 TraceCheckUtils]: 67: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p4~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 00:28:04,969 INFO L280 TraceCheckUtils]: 68: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p5~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 00:28:04,970 INFO L280 TraceCheckUtils]: 69: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p6~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 00:28:04,970 INFO L280 TraceCheckUtils]: 70: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p7~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 00:28:04,970 INFO L280 TraceCheckUtils]: 71: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p8~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-18 00:28:04,971 INFO L280 TraceCheckUtils]: 72: Hoare triple {383919#(= 0 main_~p9~0)} assume 0 != ~p9~0; {383916#false} is VALID [2020-07-18 00:28:04,971 INFO L280 TraceCheckUtils]: 73: Hoare triple {383916#false} assume 1 != ~lk9~0; {383916#false} is VALID [2020-07-18 00:28:04,971 INFO L280 TraceCheckUtils]: 74: Hoare triple {383916#false} assume !false; {383916#false} is VALID [2020-07-18 00:28:04,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:28:04,974 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:28:04,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077341133] [2020-07-18 00:28:04,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:28:04,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:28:04,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493868501] [2020-07-18 00:28:04,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-18 00:28:04,975 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:28:04,975 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:28:05,038 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:28:05,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:28:05,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:28:05,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:28:05,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:28:05,039 INFO L87 Difference]: Start difference. First operand 12075 states and 14890 transitions. Second operand 3 states.