/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/locks/test_locks_9.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-11 01:00:50,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-11 01:00:50,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-11 01:00:50,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-11 01:00:50,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-11 01:00:50,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-11 01:00:50,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-11 01:00:50,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-11 01:00:50,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-11 01:00:50,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-11 01:00:50,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-11 01:00:50,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-11 01:00:50,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-11 01:00:50,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-11 01:00:50,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-11 01:00:50,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-11 01:00:50,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-11 01:00:50,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-11 01:00:50,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-11 01:00:50,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-11 01:00:50,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-11 01:00:50,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-11 01:00:50,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-11 01:00:50,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-11 01:00:50,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-11 01:00:50,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-11 01:00:50,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-11 01:00:50,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-11 01:00:50,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-11 01:00:50,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-11 01:00:50,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-11 01:00:50,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-11 01:00:50,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-11 01:00:50,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-11 01:00:50,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-11 01:00:50,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-11 01:00:50,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-11 01:00:50,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-11 01:00:50,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-11 01:00:50,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-11 01:00:50,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-11 01:00:50,265 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-11 01:00:50,275 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-11 01:00:50,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-11 01:00:50,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-11 01:00:50,277 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-11 01:00:50,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-11 01:00:50,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-11 01:00:50,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-11 01:00:50,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-11 01:00:50,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-11 01:00:50,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-11 01:00:50,278 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-11 01:00:50,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-11 01:00:50,278 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-11 01:00:50,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-11 01:00:50,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-11 01:00:50,279 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-11 01:00:50,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-11 01:00:50,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-11 01:00:50,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-11 01:00:50,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-11 01:00:50,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-11 01:00:50,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-11 01:00:50,280 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-11 01:00:50,562 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-11 01:00:50,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-11 01:00:50,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-11 01:00:50,577 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-11 01:00:50,578 INFO L275 PluginConnector]: CDTParser initialized [2020-07-11 01:00:50,578 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_9.c [2020-07-11 01:00:50,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3067eb27b/644c75667f0d47138ad695fa3bb86423/FLAG2d7e04362 [2020-07-11 01:00:51,131 INFO L306 CDTParser]: Found 1 translation units. [2020-07-11 01:00:51,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_9.c [2020-07-11 01:00:51,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3067eb27b/644c75667f0d47138ad695fa3bb86423/FLAG2d7e04362 [2020-07-11 01:00:51,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3067eb27b/644c75667f0d47138ad695fa3bb86423 [2020-07-11 01:00:51,551 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-11 01:00:51,553 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-11 01:00:51,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-11 01:00:51,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-11 01:00:51,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-11 01:00:51,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 01:00:51" (1/1) ... [2020-07-11 01:00:51,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78b0ad5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:00:51, skipping insertion in model container [2020-07-11 01:00:51,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 01:00:51" (1/1) ... [2020-07-11 01:00:51,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-11 01:00:51,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-11 01:00:51,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 01:00:51,782 INFO L203 MainTranslator]: Completed pre-run [2020-07-11 01:00:51,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 01:00:51,823 INFO L208 MainTranslator]: Completed translation [2020-07-11 01:00:51,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:00:51 WrapperNode [2020-07-11 01:00:51,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-11 01:00:51,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-11 01:00:51,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-11 01:00:51,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-11 01:00:51,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:00:51" (1/1) ... [2020-07-11 01:00:51,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:00:51" (1/1) ... [2020-07-11 01:00:51,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:00:51" (1/1) ... [2020-07-11 01:00:51,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:00:51" (1/1) ... [2020-07-11 01:00:51,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:00:51" (1/1) ... [2020-07-11 01:00:51,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:00:51" (1/1) ... [2020-07-11 01:00:51,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:00:51" (1/1) ... [2020-07-11 01:00:51,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-11 01:00:51,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-11 01:00:51,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-11 01:00:51,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-11 01:00:51,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:00:51" (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 [2020-07-11 01:00:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-11 01:00:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-11 01:00:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-11 01:00:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-11 01:00:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-11 01:00:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-11 01:00:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-11 01:00:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-11 01:00:52,542 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-11 01:00:52,542 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-11 01:00:52,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 01:00:52 BoogieIcfgContainer [2020-07-11 01:00:52,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-11 01:00:52,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-11 01:00:52,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-11 01:00:52,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-11 01:00:52,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 01:00:51" (1/3) ... [2020-07-11 01:00:52,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5a8f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 01:00:52, skipping insertion in model container [2020-07-11 01:00:52,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:00:51" (2/3) ... [2020-07-11 01:00:52,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5a8f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 01:00:52, skipping insertion in model container [2020-07-11 01:00:52,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 01:00:52" (3/3) ... [2020-07-11 01:00:52,556 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_9.c [2020-07-11 01:00:52,567 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-11 01:00:52,575 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-11 01:00:52,589 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-11 01:00:52,611 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-11 01:00:52,612 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-11 01:00:52,612 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-11 01:00:52,612 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-11 01:00:52,612 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-11 01:00:52,613 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-11 01:00:52,613 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-11 01:00:52,613 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-11 01:00:52,630 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2020-07-11 01:00:52,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-11 01:00:52,644 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:00:52,646 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] [2020-07-11 01:00:52,646 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:00:52,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:00:52,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1511648252, now seen corresponding path program 1 times [2020-07-11 01:00:52,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:00:52,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137878324] [2020-07-11 01:00:52,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:00:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:00:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:00:52,946 INFO L280 TraceCheckUtils]: 0: Hoare triple {111#true} assume true; {111#true} is VALID [2020-07-11 01:00:52,946 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {111#true} {111#true} #247#return; {111#true} is VALID [2020-07-11 01:00:52,948 INFO L263 TraceCheckUtils]: 0: Hoare triple {111#true} call ULTIMATE.init(); {111#true} is VALID [2020-07-11 01:00:52,949 INFO L280 TraceCheckUtils]: 1: Hoare triple {111#true} assume true; {111#true} is VALID [2020-07-11 01:00:52,949 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {111#true} {111#true} #247#return; {111#true} is VALID [2020-07-11 01:00:52,950 INFO L263 TraceCheckUtils]: 3: Hoare triple {111#true} call #t~ret10 := main(); {111#true} is VALID [2020-07-11 01:00:52,950 INFO L280 TraceCheckUtils]: 4: Hoare triple {111#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {111#true} is VALID [2020-07-11 01:00:52,951 INFO L280 TraceCheckUtils]: 5: Hoare triple {111#true} ~p1~0 := #t~nondet0; {111#true} is VALID [2020-07-11 01:00:52,951 INFO L280 TraceCheckUtils]: 6: Hoare triple {111#true} havoc #t~nondet0; {111#true} is VALID [2020-07-11 01:00:52,951 INFO L280 TraceCheckUtils]: 7: Hoare triple {111#true} havoc ~lk1~0; {111#true} is VALID [2020-07-11 01:00:52,952 INFO L280 TraceCheckUtils]: 8: Hoare triple {111#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {111#true} is VALID [2020-07-11 01:00:52,952 INFO L280 TraceCheckUtils]: 9: Hoare triple {111#true} ~p2~0 := #t~nondet1; {111#true} is VALID [2020-07-11 01:00:52,953 INFO L280 TraceCheckUtils]: 10: Hoare triple {111#true} havoc #t~nondet1; {111#true} is VALID [2020-07-11 01:00:52,953 INFO L280 TraceCheckUtils]: 11: Hoare triple {111#true} havoc ~lk2~0; {111#true} is VALID [2020-07-11 01:00:52,953 INFO L280 TraceCheckUtils]: 12: Hoare triple {111#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {111#true} is VALID [2020-07-11 01:00:52,954 INFO L280 TraceCheckUtils]: 13: Hoare triple {111#true} ~p3~0 := #t~nondet2; {111#true} is VALID [2020-07-11 01:00:52,954 INFO L280 TraceCheckUtils]: 14: Hoare triple {111#true} havoc #t~nondet2; {111#true} is VALID [2020-07-11 01:00:52,955 INFO L280 TraceCheckUtils]: 15: Hoare triple {111#true} havoc ~lk3~0; {111#true} is VALID [2020-07-11 01:00:52,955 INFO L280 TraceCheckUtils]: 16: Hoare triple {111#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {111#true} is VALID [2020-07-11 01:00:52,956 INFO L280 TraceCheckUtils]: 17: Hoare triple {111#true} ~p4~0 := #t~nondet3; {111#true} is VALID [2020-07-11 01:00:52,956 INFO L280 TraceCheckUtils]: 18: Hoare triple {111#true} havoc #t~nondet3; {111#true} is VALID [2020-07-11 01:00:52,957 INFO L280 TraceCheckUtils]: 19: Hoare triple {111#true} havoc ~lk4~0; {111#true} is VALID [2020-07-11 01:00:52,957 INFO L280 TraceCheckUtils]: 20: Hoare triple {111#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {111#true} is VALID [2020-07-11 01:00:52,957 INFO L280 TraceCheckUtils]: 21: Hoare triple {111#true} ~p5~0 := #t~nondet4; {111#true} is VALID [2020-07-11 01:00:52,958 INFO L280 TraceCheckUtils]: 22: Hoare triple {111#true} havoc #t~nondet4; {111#true} is VALID [2020-07-11 01:00:52,958 INFO L280 TraceCheckUtils]: 23: Hoare triple {111#true} havoc ~lk5~0; {111#true} is VALID [2020-07-11 01:00:52,959 INFO L280 TraceCheckUtils]: 24: Hoare triple {111#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {111#true} is VALID [2020-07-11 01:00:52,959 INFO L280 TraceCheckUtils]: 25: Hoare triple {111#true} ~p6~0 := #t~nondet5; {111#true} is VALID [2020-07-11 01:00:52,960 INFO L280 TraceCheckUtils]: 26: Hoare triple {111#true} havoc #t~nondet5; {111#true} is VALID [2020-07-11 01:00:52,960 INFO L280 TraceCheckUtils]: 27: Hoare triple {111#true} havoc ~lk6~0; {111#true} is VALID [2020-07-11 01:00:52,960 INFO L280 TraceCheckUtils]: 28: Hoare triple {111#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {111#true} is VALID [2020-07-11 01:00:52,961 INFO L280 TraceCheckUtils]: 29: Hoare triple {111#true} ~p7~0 := #t~nondet6; {111#true} is VALID [2020-07-11 01:00:52,961 INFO L280 TraceCheckUtils]: 30: Hoare triple {111#true} havoc #t~nondet6; {111#true} is VALID [2020-07-11 01:00:52,962 INFO L280 TraceCheckUtils]: 31: Hoare triple {111#true} havoc ~lk7~0; {111#true} is VALID [2020-07-11 01:00:52,962 INFO L280 TraceCheckUtils]: 32: Hoare triple {111#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {111#true} is VALID [2020-07-11 01:00:52,962 INFO L280 TraceCheckUtils]: 33: Hoare triple {111#true} ~p8~0 := #t~nondet7; {111#true} is VALID [2020-07-11 01:00:52,963 INFO L280 TraceCheckUtils]: 34: Hoare triple {111#true} havoc #t~nondet7; {111#true} is VALID [2020-07-11 01:00:52,963 INFO L280 TraceCheckUtils]: 35: Hoare triple {111#true} havoc ~lk8~0; {111#true} is VALID [2020-07-11 01:00:52,964 INFO L280 TraceCheckUtils]: 36: Hoare triple {111#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {111#true} is VALID [2020-07-11 01:00:52,964 INFO L280 TraceCheckUtils]: 37: Hoare triple {111#true} ~p9~0 := #t~nondet8; {111#true} is VALID [2020-07-11 01:00:52,964 INFO L280 TraceCheckUtils]: 38: Hoare triple {111#true} havoc #t~nondet8; {111#true} is VALID [2020-07-11 01:00:52,965 INFO L280 TraceCheckUtils]: 39: Hoare triple {111#true} havoc ~lk9~0; {111#true} is VALID [2020-07-11 01:00:52,965 INFO L280 TraceCheckUtils]: 40: Hoare triple {111#true} havoc ~cond~0; {111#true} is VALID [2020-07-11 01:00:52,966 INFO L280 TraceCheckUtils]: 41: Hoare triple {111#true} assume !false; {111#true} is VALID [2020-07-11 01:00:52,966 INFO L280 TraceCheckUtils]: 42: Hoare triple {111#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {111#true} is VALID [2020-07-11 01:00:52,966 INFO L280 TraceCheckUtils]: 43: Hoare triple {111#true} ~cond~0 := #t~nondet9; {111#true} is VALID [2020-07-11 01:00:52,967 INFO L280 TraceCheckUtils]: 44: Hoare triple {111#true} havoc #t~nondet9; {111#true} is VALID [2020-07-11 01:00:52,967 INFO L280 TraceCheckUtils]: 45: Hoare triple {111#true} assume !(0 == ~cond~0); {111#true} is VALID [2020-07-11 01:00:52,967 INFO L280 TraceCheckUtils]: 46: Hoare triple {111#true} ~lk1~0 := 0; {111#true} is VALID [2020-07-11 01:00:52,968 INFO L280 TraceCheckUtils]: 47: Hoare triple {111#true} ~lk2~0 := 0; {111#true} is VALID [2020-07-11 01:00:52,968 INFO L280 TraceCheckUtils]: 48: Hoare triple {111#true} ~lk3~0 := 0; {111#true} is VALID [2020-07-11 01:00:52,968 INFO L280 TraceCheckUtils]: 49: Hoare triple {111#true} ~lk4~0 := 0; {111#true} is VALID [2020-07-11 01:00:52,968 INFO L280 TraceCheckUtils]: 50: Hoare triple {111#true} ~lk5~0 := 0; {111#true} is VALID [2020-07-11 01:00:52,969 INFO L280 TraceCheckUtils]: 51: Hoare triple {111#true} ~lk6~0 := 0; {111#true} is VALID [2020-07-11 01:00:52,969 INFO L280 TraceCheckUtils]: 52: Hoare triple {111#true} ~lk7~0 := 0; {111#true} is VALID [2020-07-11 01:00:52,969 INFO L280 TraceCheckUtils]: 53: Hoare triple {111#true} ~lk8~0 := 0; {111#true} is VALID [2020-07-11 01:00:52,970 INFO L280 TraceCheckUtils]: 54: Hoare triple {111#true} ~lk9~0 := 0; {111#true} is VALID [2020-07-11 01:00:52,971 INFO L280 TraceCheckUtils]: 55: Hoare triple {111#true} assume !(0 != ~p1~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-11 01:00:52,974 INFO L280 TraceCheckUtils]: 56: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p2~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-11 01:00:52,976 INFO L280 TraceCheckUtils]: 57: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p3~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-11 01:00:52,977 INFO L280 TraceCheckUtils]: 58: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p4~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-11 01:00:52,978 INFO L280 TraceCheckUtils]: 59: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p5~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-11 01:00:52,979 INFO L280 TraceCheckUtils]: 60: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p6~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-11 01:00:52,980 INFO L280 TraceCheckUtils]: 61: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p7~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-11 01:00:52,981 INFO L280 TraceCheckUtils]: 62: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p8~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-11 01:00:52,983 INFO L280 TraceCheckUtils]: 63: Hoare triple {115#(= 0 main_~p1~0)} assume !(0 != ~p9~0); {115#(= 0 main_~p1~0)} is VALID [2020-07-11 01:00:52,984 INFO L280 TraceCheckUtils]: 64: Hoare triple {115#(= 0 main_~p1~0)} assume 0 != ~p1~0; {112#false} is VALID [2020-07-11 01:00:52,985 INFO L280 TraceCheckUtils]: 65: Hoare triple {112#false} assume 1 != ~lk1~0; {112#false} is VALID [2020-07-11 01:00:52,985 INFO L280 TraceCheckUtils]: 66: Hoare triple {112#false} assume !false; {112#false} is VALID [2020-07-11 01:00:52,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:00:52,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137878324] [2020-07-11 01:00:52,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:00:52,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:00:53,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968220973] [2020-07-11 01:00:53,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-11 01:00:53,009 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:00:53,013 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:00:53,133 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:00:53,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:00:53,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:00:53,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:00:53,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:00:53,145 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 3 states. [2020-07-11 01:00:53,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:00:53,590 INFO L93 Difference]: Finished difference Result 235 states and 322 transitions. [2020-07-11 01:00:53,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:00:53,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-11 01:00:53,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:00:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:00:53,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2020-07-11 01:00:53,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:00:53,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2020-07-11 01:00:53,625 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 322 transitions. [2020-07-11 01:00:54,007 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 322 edges. 322 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:00:54,027 INFO L225 Difference]: With dead ends: 235 [2020-07-11 01:00:54,028 INFO L226 Difference]: Without dead ends: 160 [2020-07-11 01:00:54,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:00:54,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-11 01:00:54,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2020-07-11 01:00:54,186 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:00:54,187 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 158 states. [2020-07-11 01:00:54,188 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 158 states. [2020-07-11 01:00:54,188 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 158 states. [2020-07-11 01:00:54,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:00:54,200 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2020-07-11 01:00:54,201 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2020-07-11 01:00:54,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:00:54,203 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:00:54,203 INFO L74 IsIncluded]: Start isIncluded. First operand 158 states. Second operand 160 states. [2020-07-11 01:00:54,203 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 160 states. [2020-07-11 01:00:54,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:00:54,214 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2020-07-11 01:00:54,215 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2020-07-11 01:00:54,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:00:54,217 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:00:54,217 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:00:54,217 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:00:54,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-07-11 01:00:54,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2020-07-11 01:00:54,227 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 67 [2020-07-11 01:00:54,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:00:54,228 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2020-07-11 01:00:54,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:00:54,228 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 158 states and 208 transitions. [2020-07-11 01:00:54,433 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 208 edges. 208 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:00:54,434 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2020-07-11 01:00:54,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-11 01:00:54,436 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:00:54,437 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] [2020-07-11 01:00:54,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-11 01:00:54,437 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:00:54,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:00:54,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1267771135, now seen corresponding path program 1 times [2020-07-11 01:00:54,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:00:54,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628195228] [2020-07-11 01:00:54,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:00:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:00:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:00:54,508 INFO L280 TraceCheckUtils]: 0: Hoare triple {1224#true} assume true; {1224#true} is VALID [2020-07-11 01:00:54,508 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1224#true} {1224#true} #247#return; {1224#true} is VALID [2020-07-11 01:00:54,508 INFO L263 TraceCheckUtils]: 0: Hoare triple {1224#true} call ULTIMATE.init(); {1224#true} is VALID [2020-07-11 01:00:54,509 INFO L280 TraceCheckUtils]: 1: Hoare triple {1224#true} assume true; {1224#true} is VALID [2020-07-11 01:00:54,509 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1224#true} {1224#true} #247#return; {1224#true} is VALID [2020-07-11 01:00:54,509 INFO L263 TraceCheckUtils]: 3: Hoare triple {1224#true} call #t~ret10 := main(); {1224#true} is VALID [2020-07-11 01:00:54,510 INFO L280 TraceCheckUtils]: 4: Hoare triple {1224#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1224#true} is VALID [2020-07-11 01:00:54,510 INFO L280 TraceCheckUtils]: 5: Hoare triple {1224#true} ~p1~0 := #t~nondet0; {1224#true} is VALID [2020-07-11 01:00:54,510 INFO L280 TraceCheckUtils]: 6: Hoare triple {1224#true} havoc #t~nondet0; {1224#true} is VALID [2020-07-11 01:00:54,511 INFO L280 TraceCheckUtils]: 7: Hoare triple {1224#true} havoc ~lk1~0; {1224#true} is VALID [2020-07-11 01:00:54,511 INFO L280 TraceCheckUtils]: 8: Hoare triple {1224#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1224#true} is VALID [2020-07-11 01:00:54,511 INFO L280 TraceCheckUtils]: 9: Hoare triple {1224#true} ~p2~0 := #t~nondet1; {1224#true} is VALID [2020-07-11 01:00:54,511 INFO L280 TraceCheckUtils]: 10: Hoare triple {1224#true} havoc #t~nondet1; {1224#true} is VALID [2020-07-11 01:00:54,512 INFO L280 TraceCheckUtils]: 11: Hoare triple {1224#true} havoc ~lk2~0; {1224#true} is VALID [2020-07-11 01:00:54,512 INFO L280 TraceCheckUtils]: 12: Hoare triple {1224#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {1224#true} is VALID [2020-07-11 01:00:54,512 INFO L280 TraceCheckUtils]: 13: Hoare triple {1224#true} ~p3~0 := #t~nondet2; {1224#true} is VALID [2020-07-11 01:00:54,512 INFO L280 TraceCheckUtils]: 14: Hoare triple {1224#true} havoc #t~nondet2; {1224#true} is VALID [2020-07-11 01:00:54,513 INFO L280 TraceCheckUtils]: 15: Hoare triple {1224#true} havoc ~lk3~0; {1224#true} is VALID [2020-07-11 01:00:54,513 INFO L280 TraceCheckUtils]: 16: Hoare triple {1224#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {1224#true} is VALID [2020-07-11 01:00:54,513 INFO L280 TraceCheckUtils]: 17: Hoare triple {1224#true} ~p4~0 := #t~nondet3; {1224#true} is VALID [2020-07-11 01:00:54,514 INFO L280 TraceCheckUtils]: 18: Hoare triple {1224#true} havoc #t~nondet3; {1224#true} is VALID [2020-07-11 01:00:54,514 INFO L280 TraceCheckUtils]: 19: Hoare triple {1224#true} havoc ~lk4~0; {1224#true} is VALID [2020-07-11 01:00:54,514 INFO L280 TraceCheckUtils]: 20: Hoare triple {1224#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {1224#true} is VALID [2020-07-11 01:00:54,514 INFO L280 TraceCheckUtils]: 21: Hoare triple {1224#true} ~p5~0 := #t~nondet4; {1224#true} is VALID [2020-07-11 01:00:54,515 INFO L280 TraceCheckUtils]: 22: Hoare triple {1224#true} havoc #t~nondet4; {1224#true} is VALID [2020-07-11 01:00:54,515 INFO L280 TraceCheckUtils]: 23: Hoare triple {1224#true} havoc ~lk5~0; {1224#true} is VALID [2020-07-11 01:00:54,515 INFO L280 TraceCheckUtils]: 24: Hoare triple {1224#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {1224#true} is VALID [2020-07-11 01:00:54,516 INFO L280 TraceCheckUtils]: 25: Hoare triple {1224#true} ~p6~0 := #t~nondet5; {1224#true} is VALID [2020-07-11 01:00:54,516 INFO L280 TraceCheckUtils]: 26: Hoare triple {1224#true} havoc #t~nondet5; {1224#true} is VALID [2020-07-11 01:00:54,516 INFO L280 TraceCheckUtils]: 27: Hoare triple {1224#true} havoc ~lk6~0; {1224#true} is VALID [2020-07-11 01:00:54,517 INFO L280 TraceCheckUtils]: 28: Hoare triple {1224#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {1224#true} is VALID [2020-07-11 01:00:54,517 INFO L280 TraceCheckUtils]: 29: Hoare triple {1224#true} ~p7~0 := #t~nondet6; {1224#true} is VALID [2020-07-11 01:00:54,517 INFO L280 TraceCheckUtils]: 30: Hoare triple {1224#true} havoc #t~nondet6; {1224#true} is VALID [2020-07-11 01:00:54,517 INFO L280 TraceCheckUtils]: 31: Hoare triple {1224#true} havoc ~lk7~0; {1224#true} is VALID [2020-07-11 01:00:54,518 INFO L280 TraceCheckUtils]: 32: Hoare triple {1224#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {1224#true} is VALID [2020-07-11 01:00:54,518 INFO L280 TraceCheckUtils]: 33: Hoare triple {1224#true} ~p8~0 := #t~nondet7; {1224#true} is VALID [2020-07-11 01:00:54,518 INFO L280 TraceCheckUtils]: 34: Hoare triple {1224#true} havoc #t~nondet7; {1224#true} is VALID [2020-07-11 01:00:54,519 INFO L280 TraceCheckUtils]: 35: Hoare triple {1224#true} havoc ~lk8~0; {1224#true} is VALID [2020-07-11 01:00:54,519 INFO L280 TraceCheckUtils]: 36: Hoare triple {1224#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {1224#true} is VALID [2020-07-11 01:00:54,519 INFO L280 TraceCheckUtils]: 37: Hoare triple {1224#true} ~p9~0 := #t~nondet8; {1224#true} is VALID [2020-07-11 01:00:54,520 INFO L280 TraceCheckUtils]: 38: Hoare triple {1224#true} havoc #t~nondet8; {1224#true} is VALID [2020-07-11 01:00:54,520 INFO L280 TraceCheckUtils]: 39: Hoare triple {1224#true} havoc ~lk9~0; {1224#true} is VALID [2020-07-11 01:00:54,520 INFO L280 TraceCheckUtils]: 40: Hoare triple {1224#true} havoc ~cond~0; {1224#true} is VALID [2020-07-11 01:00:54,520 INFO L280 TraceCheckUtils]: 41: Hoare triple {1224#true} assume !false; {1224#true} is VALID [2020-07-11 01:00:54,521 INFO L280 TraceCheckUtils]: 42: Hoare triple {1224#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {1224#true} is VALID [2020-07-11 01:00:54,521 INFO L280 TraceCheckUtils]: 43: Hoare triple {1224#true} ~cond~0 := #t~nondet9; {1224#true} is VALID [2020-07-11 01:00:54,521 INFO L280 TraceCheckUtils]: 44: Hoare triple {1224#true} havoc #t~nondet9; {1224#true} is VALID [2020-07-11 01:00:54,521 INFO L280 TraceCheckUtils]: 45: Hoare triple {1224#true} assume !(0 == ~cond~0); {1224#true} is VALID [2020-07-11 01:00:54,522 INFO L280 TraceCheckUtils]: 46: Hoare triple {1224#true} ~lk1~0 := 0; {1224#true} is VALID [2020-07-11 01:00:54,522 INFO L280 TraceCheckUtils]: 47: Hoare triple {1224#true} ~lk2~0 := 0; {1224#true} is VALID [2020-07-11 01:00:54,522 INFO L280 TraceCheckUtils]: 48: Hoare triple {1224#true} ~lk3~0 := 0; {1224#true} is VALID [2020-07-11 01:00:54,523 INFO L280 TraceCheckUtils]: 49: Hoare triple {1224#true} ~lk4~0 := 0; {1224#true} is VALID [2020-07-11 01:00:54,523 INFO L280 TraceCheckUtils]: 50: Hoare triple {1224#true} ~lk5~0 := 0; {1224#true} is VALID [2020-07-11 01:00:54,523 INFO L280 TraceCheckUtils]: 51: Hoare triple {1224#true} ~lk6~0 := 0; {1224#true} is VALID [2020-07-11 01:00:54,523 INFO L280 TraceCheckUtils]: 52: Hoare triple {1224#true} ~lk7~0 := 0; {1224#true} is VALID [2020-07-11 01:00:54,524 INFO L280 TraceCheckUtils]: 53: Hoare triple {1224#true} ~lk8~0 := 0; {1224#true} is VALID [2020-07-11 01:00:54,524 INFO L280 TraceCheckUtils]: 54: Hoare triple {1224#true} ~lk9~0 := 0; {1224#true} is VALID [2020-07-11 01:00:54,524 INFO L280 TraceCheckUtils]: 55: Hoare triple {1224#true} assume 0 != ~p1~0; {1224#true} is VALID [2020-07-11 01:00:54,525 INFO L280 TraceCheckUtils]: 56: Hoare triple {1224#true} ~lk1~0 := 1; {1228#(= 1 main_~lk1~0)} is VALID [2020-07-11 01:00:54,526 INFO L280 TraceCheckUtils]: 57: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p2~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-11 01:00:54,527 INFO L280 TraceCheckUtils]: 58: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p3~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-11 01:00:54,527 INFO L280 TraceCheckUtils]: 59: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p4~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-11 01:00:54,528 INFO L280 TraceCheckUtils]: 60: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p5~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-11 01:00:54,529 INFO L280 TraceCheckUtils]: 61: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p6~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-11 01:00:54,529 INFO L280 TraceCheckUtils]: 62: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p7~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-11 01:00:54,530 INFO L280 TraceCheckUtils]: 63: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p8~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-11 01:00:54,530 INFO L280 TraceCheckUtils]: 64: Hoare triple {1228#(= 1 main_~lk1~0)} assume !(0 != ~p9~0); {1228#(= 1 main_~lk1~0)} is VALID [2020-07-11 01:00:54,531 INFO L280 TraceCheckUtils]: 65: Hoare triple {1228#(= 1 main_~lk1~0)} assume 0 != ~p1~0; {1228#(= 1 main_~lk1~0)} is VALID [2020-07-11 01:00:54,532 INFO L280 TraceCheckUtils]: 66: Hoare triple {1228#(= 1 main_~lk1~0)} assume 1 != ~lk1~0; {1225#false} is VALID [2020-07-11 01:00:54,532 INFO L280 TraceCheckUtils]: 67: Hoare triple {1225#false} assume !false; {1225#false} is VALID [2020-07-11 01:00:54,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:00:54,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628195228] [2020-07-11 01:00:54,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:00:54,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:00:54,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368125871] [2020-07-11 01:00:54,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-11 01:00:54,541 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:00:54,542 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:00:54,604 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:00:54,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:00:54,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:00:54,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:00:54,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:00:54,605 INFO L87 Difference]: Start difference. First operand 158 states and 208 transitions. Second operand 3 states. [2020-07-11 01:00:54,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:00:54,956 INFO L93 Difference]: Finished difference Result 192 states and 256 transitions. [2020-07-11 01:00:54,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:00:54,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-11 01:00:54,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:00:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:00:54,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2020-07-11 01:00:54,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:00:54,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2020-07-11 01:00:54,965 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 201 transitions. [2020-07-11 01:00:55,136 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 201 edges. 201 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:00:55,143 INFO L225 Difference]: With dead ends: 192 [2020-07-11 01:00:55,143 INFO L226 Difference]: Without dead ends: 190 [2020-07-11 01:00:55,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:00:55,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-07-11 01:00:55,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 158. [2020-07-11 01:00:55,308 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:00:55,309 INFO L82 GeneralOperation]: Start isEquivalent. First operand 190 states. Second operand 158 states. [2020-07-11 01:00:55,309 INFO L74 IsIncluded]: Start isIncluded. First operand 190 states. Second operand 158 states. [2020-07-11 01:00:55,309 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 158 states. [2020-07-11 01:00:55,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:00:55,320 INFO L93 Difference]: Finished difference Result 190 states and 254 transitions. [2020-07-11 01:00:55,321 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2020-07-11 01:00:55,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:00:55,328 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:00:55,328 INFO L74 IsIncluded]: Start isIncluded. First operand 158 states. Second operand 190 states. [2020-07-11 01:00:55,329 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 190 states. [2020-07-11 01:00:55,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:00:55,340 INFO L93 Difference]: Finished difference Result 190 states and 254 transitions. [2020-07-11 01:00:55,340 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2020-07-11 01:00:55,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:00:55,341 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:00:55,341 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:00:55,341 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:00:55,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-07-11 01:00:55,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 207 transitions. [2020-07-11 01:00:55,349 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 207 transitions. Word has length 68 [2020-07-11 01:00:55,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:00:55,350 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 207 transitions. [2020-07-11 01:00:55,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:00:55,351 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 158 states and 207 transitions. [2020-07-11 01:00:55,573 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 207 edges. 207 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:00:55,573 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 207 transitions. [2020-07-11 01:00:55,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-11 01:00:55,575 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:00:55,575 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] [2020-07-11 01:00:55,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-11 01:00:55,576 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:00:55,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:00:55,576 INFO L82 PathProgramCache]: Analyzing trace with hash -383300170, now seen corresponding path program 1 times [2020-07-11 01:00:55,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:00:55,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178987097] [2020-07-11 01:00:55,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:00:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:00:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:00:55,666 INFO L280 TraceCheckUtils]: 0: Hoare triple {2311#true} assume true; {2311#true} is VALID [2020-07-11 01:00:55,666 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2311#true} {2311#true} #247#return; {2311#true} is VALID [2020-07-11 01:00:55,666 INFO L263 TraceCheckUtils]: 0: Hoare triple {2311#true} call ULTIMATE.init(); {2311#true} is VALID [2020-07-11 01:00:55,666 INFO L280 TraceCheckUtils]: 1: Hoare triple {2311#true} assume true; {2311#true} is VALID [2020-07-11 01:00:55,667 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2311#true} {2311#true} #247#return; {2311#true} is VALID [2020-07-11 01:00:55,667 INFO L263 TraceCheckUtils]: 3: Hoare triple {2311#true} call #t~ret10 := main(); {2311#true} is VALID [2020-07-11 01:00:55,667 INFO L280 TraceCheckUtils]: 4: Hoare triple {2311#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {2311#true} is VALID [2020-07-11 01:00:55,667 INFO L280 TraceCheckUtils]: 5: Hoare triple {2311#true} ~p1~0 := #t~nondet0; {2311#true} is VALID [2020-07-11 01:00:55,667 INFO L280 TraceCheckUtils]: 6: Hoare triple {2311#true} havoc #t~nondet0; {2311#true} is VALID [2020-07-11 01:00:55,667 INFO L280 TraceCheckUtils]: 7: Hoare triple {2311#true} havoc ~lk1~0; {2311#true} is VALID [2020-07-11 01:00:55,668 INFO L280 TraceCheckUtils]: 8: Hoare triple {2311#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {2311#true} is VALID [2020-07-11 01:00:55,668 INFO L280 TraceCheckUtils]: 9: Hoare triple {2311#true} ~p2~0 := #t~nondet1; {2311#true} is VALID [2020-07-11 01:00:55,668 INFO L280 TraceCheckUtils]: 10: Hoare triple {2311#true} havoc #t~nondet1; {2311#true} is VALID [2020-07-11 01:00:55,668 INFO L280 TraceCheckUtils]: 11: Hoare triple {2311#true} havoc ~lk2~0; {2311#true} is VALID [2020-07-11 01:00:55,668 INFO L280 TraceCheckUtils]: 12: Hoare triple {2311#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {2311#true} is VALID [2020-07-11 01:00:55,668 INFO L280 TraceCheckUtils]: 13: Hoare triple {2311#true} ~p3~0 := #t~nondet2; {2311#true} is VALID [2020-07-11 01:00:55,669 INFO L280 TraceCheckUtils]: 14: Hoare triple {2311#true} havoc #t~nondet2; {2311#true} is VALID [2020-07-11 01:00:55,669 INFO L280 TraceCheckUtils]: 15: Hoare triple {2311#true} havoc ~lk3~0; {2311#true} is VALID [2020-07-11 01:00:55,669 INFO L280 TraceCheckUtils]: 16: Hoare triple {2311#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {2311#true} is VALID [2020-07-11 01:00:55,669 INFO L280 TraceCheckUtils]: 17: Hoare triple {2311#true} ~p4~0 := #t~nondet3; {2311#true} is VALID [2020-07-11 01:00:55,670 INFO L280 TraceCheckUtils]: 18: Hoare triple {2311#true} havoc #t~nondet3; {2311#true} is VALID [2020-07-11 01:00:55,670 INFO L280 TraceCheckUtils]: 19: Hoare triple {2311#true} havoc ~lk4~0; {2311#true} is VALID [2020-07-11 01:00:55,670 INFO L280 TraceCheckUtils]: 20: Hoare triple {2311#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {2311#true} is VALID [2020-07-11 01:00:55,670 INFO L280 TraceCheckUtils]: 21: Hoare triple {2311#true} ~p5~0 := #t~nondet4; {2311#true} is VALID [2020-07-11 01:00:55,670 INFO L280 TraceCheckUtils]: 22: Hoare triple {2311#true} havoc #t~nondet4; {2311#true} is VALID [2020-07-11 01:00:55,671 INFO L280 TraceCheckUtils]: 23: Hoare triple {2311#true} havoc ~lk5~0; {2311#true} is VALID [2020-07-11 01:00:55,671 INFO L280 TraceCheckUtils]: 24: Hoare triple {2311#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {2311#true} is VALID [2020-07-11 01:00:55,671 INFO L280 TraceCheckUtils]: 25: Hoare triple {2311#true} ~p6~0 := #t~nondet5; {2311#true} is VALID [2020-07-11 01:00:55,671 INFO L280 TraceCheckUtils]: 26: Hoare triple {2311#true} havoc #t~nondet5; {2311#true} is VALID [2020-07-11 01:00:55,672 INFO L280 TraceCheckUtils]: 27: Hoare triple {2311#true} havoc ~lk6~0; {2311#true} is VALID [2020-07-11 01:00:55,672 INFO L280 TraceCheckUtils]: 28: Hoare triple {2311#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {2311#true} is VALID [2020-07-11 01:00:55,672 INFO L280 TraceCheckUtils]: 29: Hoare triple {2311#true} ~p7~0 := #t~nondet6; {2311#true} is VALID [2020-07-11 01:00:55,672 INFO L280 TraceCheckUtils]: 30: Hoare triple {2311#true} havoc #t~nondet6; {2311#true} is VALID [2020-07-11 01:00:55,672 INFO L280 TraceCheckUtils]: 31: Hoare triple {2311#true} havoc ~lk7~0; {2311#true} is VALID [2020-07-11 01:00:55,673 INFO L280 TraceCheckUtils]: 32: Hoare triple {2311#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {2311#true} is VALID [2020-07-11 01:00:55,673 INFO L280 TraceCheckUtils]: 33: Hoare triple {2311#true} ~p8~0 := #t~nondet7; {2311#true} is VALID [2020-07-11 01:00:55,673 INFO L280 TraceCheckUtils]: 34: Hoare triple {2311#true} havoc #t~nondet7; {2311#true} is VALID [2020-07-11 01:00:55,673 INFO L280 TraceCheckUtils]: 35: Hoare triple {2311#true} havoc ~lk8~0; {2311#true} is VALID [2020-07-11 01:00:55,674 INFO L280 TraceCheckUtils]: 36: Hoare triple {2311#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {2311#true} is VALID [2020-07-11 01:00:55,674 INFO L280 TraceCheckUtils]: 37: Hoare triple {2311#true} ~p9~0 := #t~nondet8; {2311#true} is VALID [2020-07-11 01:00:55,674 INFO L280 TraceCheckUtils]: 38: Hoare triple {2311#true} havoc #t~nondet8; {2311#true} is VALID [2020-07-11 01:00:55,674 INFO L280 TraceCheckUtils]: 39: Hoare triple {2311#true} havoc ~lk9~0; {2311#true} is VALID [2020-07-11 01:00:55,675 INFO L280 TraceCheckUtils]: 40: Hoare triple {2311#true} havoc ~cond~0; {2311#true} is VALID [2020-07-11 01:00:55,675 INFO L280 TraceCheckUtils]: 41: Hoare triple {2311#true} assume !false; {2311#true} is VALID [2020-07-11 01:00:55,675 INFO L280 TraceCheckUtils]: 42: Hoare triple {2311#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {2311#true} is VALID [2020-07-11 01:00:55,675 INFO L280 TraceCheckUtils]: 43: Hoare triple {2311#true} ~cond~0 := #t~nondet9; {2311#true} is VALID [2020-07-11 01:00:55,675 INFO L280 TraceCheckUtils]: 44: Hoare triple {2311#true} havoc #t~nondet9; {2311#true} is VALID [2020-07-11 01:00:55,676 INFO L280 TraceCheckUtils]: 45: Hoare triple {2311#true} assume !(0 == ~cond~0); {2311#true} is VALID [2020-07-11 01:00:55,676 INFO L280 TraceCheckUtils]: 46: Hoare triple {2311#true} ~lk1~0 := 0; {2311#true} is VALID [2020-07-11 01:00:55,676 INFO L280 TraceCheckUtils]: 47: Hoare triple {2311#true} ~lk2~0 := 0; {2311#true} is VALID [2020-07-11 01:00:55,676 INFO L280 TraceCheckUtils]: 48: Hoare triple {2311#true} ~lk3~0 := 0; {2311#true} is VALID [2020-07-11 01:00:55,677 INFO L280 TraceCheckUtils]: 49: Hoare triple {2311#true} ~lk4~0 := 0; {2311#true} is VALID [2020-07-11 01:00:55,677 INFO L280 TraceCheckUtils]: 50: Hoare triple {2311#true} ~lk5~0 := 0; {2311#true} is VALID [2020-07-11 01:00:55,677 INFO L280 TraceCheckUtils]: 51: Hoare triple {2311#true} ~lk6~0 := 0; {2311#true} is VALID [2020-07-11 01:00:55,677 INFO L280 TraceCheckUtils]: 52: Hoare triple {2311#true} ~lk7~0 := 0; {2311#true} is VALID [2020-07-11 01:00:55,677 INFO L280 TraceCheckUtils]: 53: Hoare triple {2311#true} ~lk8~0 := 0; {2311#true} is VALID [2020-07-11 01:00:55,678 INFO L280 TraceCheckUtils]: 54: Hoare triple {2311#true} ~lk9~0 := 0; {2311#true} is VALID [2020-07-11 01:00:55,678 INFO L280 TraceCheckUtils]: 55: Hoare triple {2311#true} assume !(0 != ~p1~0); {2311#true} is VALID [2020-07-11 01:00:55,680 INFO L280 TraceCheckUtils]: 56: Hoare triple {2311#true} assume !(0 != ~p2~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-11 01:00:55,681 INFO L280 TraceCheckUtils]: 57: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p3~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-11 01:00:55,682 INFO L280 TraceCheckUtils]: 58: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p4~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-11 01:00:55,682 INFO L280 TraceCheckUtils]: 59: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p5~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-11 01:00:55,683 INFO L280 TraceCheckUtils]: 60: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p6~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-11 01:00:55,684 INFO L280 TraceCheckUtils]: 61: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p7~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-11 01:00:55,684 INFO L280 TraceCheckUtils]: 62: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p8~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-11 01:00:55,685 INFO L280 TraceCheckUtils]: 63: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p9~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-11 01:00:55,685 INFO L280 TraceCheckUtils]: 64: Hoare triple {2315#(= 0 main_~p2~0)} assume !(0 != ~p1~0); {2315#(= 0 main_~p2~0)} is VALID [2020-07-11 01:00:55,686 INFO L280 TraceCheckUtils]: 65: Hoare triple {2315#(= 0 main_~p2~0)} assume 0 != ~p2~0; {2312#false} is VALID [2020-07-11 01:00:55,686 INFO L280 TraceCheckUtils]: 66: Hoare triple {2312#false} assume 1 != ~lk2~0; {2312#false} is VALID [2020-07-11 01:00:55,686 INFO L280 TraceCheckUtils]: 67: Hoare triple {2312#false} assume !false; {2312#false} is VALID [2020-07-11 01:00:55,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:00:55,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178987097] [2020-07-11 01:00:55,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:00:55,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:00:55,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369961924] [2020-07-11 01:00:55,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-11 01:00:55,692 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:00:55,692 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:00:55,751 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:00:55,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:00:55,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:00:55,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:00:55,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:00:55,753 INFO L87 Difference]: Start difference. First operand 158 states and 207 transitions. Second operand 3 states. [2020-07-11 01:00:56,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:00:56,252 INFO L93 Difference]: Finished difference Result 386 states and 531 transitions. [2020-07-11 01:00:56,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:00:56,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-07-11 01:00:56,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:00:56,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:00:56,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2020-07-11 01:00:56,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:00:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2020-07-11 01:00:56,261 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 295 transitions. [2020-07-11 01:00:56,552 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 295 edges. 295 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:00:56,559 INFO L225 Difference]: With dead ends: 386 [2020-07-11 01:00:56,560 INFO L226 Difference]: Without dead ends: 269 [2020-07-11 01:00:56,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:00:56,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-07-11 01:00:56,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2020-07-11 01:00:56,829 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:00:56,829 INFO L82 GeneralOperation]: Start isEquivalent. First operand 269 states. Second operand 267 states. [2020-07-11 01:00:56,829 INFO L74 IsIncluded]: Start isIncluded. First operand 269 states. Second operand 267 states. [2020-07-11 01:00:56,830 INFO L87 Difference]: Start difference. First operand 269 states. Second operand 267 states. [2020-07-11 01:00:56,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:00:56,849 INFO L93 Difference]: Finished difference Result 269 states and 361 transitions. [2020-07-11 01:00:56,850 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 361 transitions. [2020-07-11 01:00:56,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:00:56,850 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:00:56,851 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states. Second operand 269 states. [2020-07-11 01:00:56,851 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 269 states. [2020-07-11 01:00:56,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:00:56,862 INFO L93 Difference]: Finished difference Result 269 states and 361 transitions. [2020-07-11 01:00:56,862 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 361 transitions. [2020-07-11 01:00:56,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:00:56,863 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:00:56,863 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:00:56,863 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:00:56,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-07-11 01:00:56,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 360 transitions. [2020-07-11 01:00:56,874 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 360 transitions. Word has length 68 [2020-07-11 01:00:56,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:00:56,875 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 360 transitions. [2020-07-11 01:00:56,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:00:56,875 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 267 states and 360 transitions. [2020-07-11 01:00:57,251 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 360 edges. 360 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:00:57,252 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 360 transitions. [2020-07-11 01:00:57,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-11 01:00:57,253 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:00:57,253 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] [2020-07-11 01:00:57,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-11 01:00:57,262 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:00:57,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:00:57,263 INFO L82 PathProgramCache]: Analyzing trace with hash 113752694, now seen corresponding path program 1 times [2020-07-11 01:00:57,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:00:57,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779529738] [2020-07-11 01:00:57,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:00:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:00:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:00:57,314 INFO L280 TraceCheckUtils]: 0: Hoare triple {4162#true} assume true; {4162#true} is VALID [2020-07-11 01:00:57,314 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {4162#true} {4162#true} #247#return; {4162#true} is VALID [2020-07-11 01:00:57,314 INFO L263 TraceCheckUtils]: 0: Hoare triple {4162#true} call ULTIMATE.init(); {4162#true} is VALID [2020-07-11 01:00:57,315 INFO L280 TraceCheckUtils]: 1: Hoare triple {4162#true} assume true; {4162#true} is VALID [2020-07-11 01:00:57,315 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4162#true} {4162#true} #247#return; {4162#true} is VALID [2020-07-11 01:00:57,315 INFO L263 TraceCheckUtils]: 3: Hoare triple {4162#true} call #t~ret10 := main(); {4162#true} is VALID [2020-07-11 01:00:57,315 INFO L280 TraceCheckUtils]: 4: Hoare triple {4162#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {4162#true} is VALID [2020-07-11 01:00:57,316 INFO L280 TraceCheckUtils]: 5: Hoare triple {4162#true} ~p1~0 := #t~nondet0; {4162#true} is VALID [2020-07-11 01:00:57,316 INFO L280 TraceCheckUtils]: 6: Hoare triple {4162#true} havoc #t~nondet0; {4162#true} is VALID [2020-07-11 01:00:57,316 INFO L280 TraceCheckUtils]: 7: Hoare triple {4162#true} havoc ~lk1~0; {4162#true} is VALID [2020-07-11 01:00:57,316 INFO L280 TraceCheckUtils]: 8: Hoare triple {4162#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {4162#true} is VALID [2020-07-11 01:00:57,316 INFO L280 TraceCheckUtils]: 9: Hoare triple {4162#true} ~p2~0 := #t~nondet1; {4162#true} is VALID [2020-07-11 01:00:57,317 INFO L280 TraceCheckUtils]: 10: Hoare triple {4162#true} havoc #t~nondet1; {4162#true} is VALID [2020-07-11 01:00:57,317 INFO L280 TraceCheckUtils]: 11: Hoare triple {4162#true} havoc ~lk2~0; {4162#true} is VALID [2020-07-11 01:00:57,317 INFO L280 TraceCheckUtils]: 12: Hoare triple {4162#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4162#true} is VALID [2020-07-11 01:00:57,317 INFO L280 TraceCheckUtils]: 13: Hoare triple {4162#true} ~p3~0 := #t~nondet2; {4162#true} is VALID [2020-07-11 01:00:57,318 INFO L280 TraceCheckUtils]: 14: Hoare triple {4162#true} havoc #t~nondet2; {4162#true} is VALID [2020-07-11 01:00:57,318 INFO L280 TraceCheckUtils]: 15: Hoare triple {4162#true} havoc ~lk3~0; {4162#true} is VALID [2020-07-11 01:00:57,318 INFO L280 TraceCheckUtils]: 16: Hoare triple {4162#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {4162#true} is VALID [2020-07-11 01:00:57,318 INFO L280 TraceCheckUtils]: 17: Hoare triple {4162#true} ~p4~0 := #t~nondet3; {4162#true} is VALID [2020-07-11 01:00:57,318 INFO L280 TraceCheckUtils]: 18: Hoare triple {4162#true} havoc #t~nondet3; {4162#true} is VALID [2020-07-11 01:00:57,319 INFO L280 TraceCheckUtils]: 19: Hoare triple {4162#true} havoc ~lk4~0; {4162#true} is VALID [2020-07-11 01:00:57,319 INFO L280 TraceCheckUtils]: 20: Hoare triple {4162#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {4162#true} is VALID [2020-07-11 01:00:57,319 INFO L280 TraceCheckUtils]: 21: Hoare triple {4162#true} ~p5~0 := #t~nondet4; {4162#true} is VALID [2020-07-11 01:00:57,319 INFO L280 TraceCheckUtils]: 22: Hoare triple {4162#true} havoc #t~nondet4; {4162#true} is VALID [2020-07-11 01:00:57,320 INFO L280 TraceCheckUtils]: 23: Hoare triple {4162#true} havoc ~lk5~0; {4162#true} is VALID [2020-07-11 01:00:57,320 INFO L280 TraceCheckUtils]: 24: Hoare triple {4162#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {4162#true} is VALID [2020-07-11 01:00:57,320 INFO L280 TraceCheckUtils]: 25: Hoare triple {4162#true} ~p6~0 := #t~nondet5; {4162#true} is VALID [2020-07-11 01:00:57,320 INFO L280 TraceCheckUtils]: 26: Hoare triple {4162#true} havoc #t~nondet5; {4162#true} is VALID [2020-07-11 01:00:57,320 INFO L280 TraceCheckUtils]: 27: Hoare triple {4162#true} havoc ~lk6~0; {4162#true} is VALID [2020-07-11 01:00:57,321 INFO L280 TraceCheckUtils]: 28: Hoare triple {4162#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {4162#true} is VALID [2020-07-11 01:00:57,321 INFO L280 TraceCheckUtils]: 29: Hoare triple {4162#true} ~p7~0 := #t~nondet6; {4162#true} is VALID [2020-07-11 01:00:57,321 INFO L280 TraceCheckUtils]: 30: Hoare triple {4162#true} havoc #t~nondet6; {4162#true} is VALID [2020-07-11 01:00:57,321 INFO L280 TraceCheckUtils]: 31: Hoare triple {4162#true} havoc ~lk7~0; {4162#true} is VALID [2020-07-11 01:00:57,321 INFO L280 TraceCheckUtils]: 32: Hoare triple {4162#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {4162#true} is VALID [2020-07-11 01:00:57,322 INFO L280 TraceCheckUtils]: 33: Hoare triple {4162#true} ~p8~0 := #t~nondet7; {4162#true} is VALID [2020-07-11 01:00:57,322 INFO L280 TraceCheckUtils]: 34: Hoare triple {4162#true} havoc #t~nondet7; {4162#true} is VALID [2020-07-11 01:00:57,322 INFO L280 TraceCheckUtils]: 35: Hoare triple {4162#true} havoc ~lk8~0; {4162#true} is VALID [2020-07-11 01:00:57,322 INFO L280 TraceCheckUtils]: 36: Hoare triple {4162#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {4162#true} is VALID [2020-07-11 01:00:57,323 INFO L280 TraceCheckUtils]: 37: Hoare triple {4162#true} ~p9~0 := #t~nondet8; {4162#true} is VALID [2020-07-11 01:00:57,323 INFO L280 TraceCheckUtils]: 38: Hoare triple {4162#true} havoc #t~nondet8; {4162#true} is VALID [2020-07-11 01:00:57,323 INFO L280 TraceCheckUtils]: 39: Hoare triple {4162#true} havoc ~lk9~0; {4162#true} is VALID [2020-07-11 01:00:57,323 INFO L280 TraceCheckUtils]: 40: Hoare triple {4162#true} havoc ~cond~0; {4162#true} is VALID [2020-07-11 01:00:57,323 INFO L280 TraceCheckUtils]: 41: Hoare triple {4162#true} assume !false; {4162#true} is VALID [2020-07-11 01:00:57,324 INFO L280 TraceCheckUtils]: 42: Hoare triple {4162#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {4162#true} is VALID [2020-07-11 01:00:57,324 INFO L280 TraceCheckUtils]: 43: Hoare triple {4162#true} ~cond~0 := #t~nondet9; {4162#true} is VALID [2020-07-11 01:00:57,324 INFO L280 TraceCheckUtils]: 44: Hoare triple {4162#true} havoc #t~nondet9; {4162#true} is VALID [2020-07-11 01:00:57,324 INFO L280 TraceCheckUtils]: 45: Hoare triple {4162#true} assume !(0 == ~cond~0); {4162#true} is VALID [2020-07-11 01:00:57,324 INFO L280 TraceCheckUtils]: 46: Hoare triple {4162#true} ~lk1~0 := 0; {4162#true} is VALID [2020-07-11 01:00:57,325 INFO L280 TraceCheckUtils]: 47: Hoare triple {4162#true} ~lk2~0 := 0; {4162#true} is VALID [2020-07-11 01:00:57,325 INFO L280 TraceCheckUtils]: 48: Hoare triple {4162#true} ~lk3~0 := 0; {4162#true} is VALID [2020-07-11 01:00:57,325 INFO L280 TraceCheckUtils]: 49: Hoare triple {4162#true} ~lk4~0 := 0; {4162#true} is VALID [2020-07-11 01:00:57,325 INFO L280 TraceCheckUtils]: 50: Hoare triple {4162#true} ~lk5~0 := 0; {4162#true} is VALID [2020-07-11 01:00:57,326 INFO L280 TraceCheckUtils]: 51: Hoare triple {4162#true} ~lk6~0 := 0; {4162#true} is VALID [2020-07-11 01:00:57,326 INFO L280 TraceCheckUtils]: 52: Hoare triple {4162#true} ~lk7~0 := 0; {4162#true} is VALID [2020-07-11 01:00:57,326 INFO L280 TraceCheckUtils]: 53: Hoare triple {4162#true} ~lk8~0 := 0; {4162#true} is VALID [2020-07-11 01:00:57,326 INFO L280 TraceCheckUtils]: 54: Hoare triple {4162#true} ~lk9~0 := 0; {4162#true} is VALID [2020-07-11 01:00:57,326 INFO L280 TraceCheckUtils]: 55: Hoare triple {4162#true} assume !(0 != ~p1~0); {4162#true} is VALID [2020-07-11 01:00:57,327 INFO L280 TraceCheckUtils]: 56: Hoare triple {4162#true} assume 0 != ~p2~0; {4162#true} is VALID [2020-07-11 01:00:57,327 INFO L280 TraceCheckUtils]: 57: Hoare triple {4162#true} ~lk2~0 := 1; {4166#(= 1 main_~lk2~0)} is VALID [2020-07-11 01:00:57,328 INFO L280 TraceCheckUtils]: 58: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p3~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-11 01:00:57,328 INFO L280 TraceCheckUtils]: 59: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p4~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-11 01:00:57,329 INFO L280 TraceCheckUtils]: 60: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p5~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-11 01:00:57,329 INFO L280 TraceCheckUtils]: 61: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p6~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-11 01:00:57,330 INFO L280 TraceCheckUtils]: 62: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p7~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-11 01:00:57,330 INFO L280 TraceCheckUtils]: 63: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p8~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-11 01:00:57,331 INFO L280 TraceCheckUtils]: 64: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p9~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-11 01:00:57,332 INFO L280 TraceCheckUtils]: 65: Hoare triple {4166#(= 1 main_~lk2~0)} assume !(0 != ~p1~0); {4166#(= 1 main_~lk2~0)} is VALID [2020-07-11 01:00:57,332 INFO L280 TraceCheckUtils]: 66: Hoare triple {4166#(= 1 main_~lk2~0)} assume 0 != ~p2~0; {4166#(= 1 main_~lk2~0)} is VALID [2020-07-11 01:00:57,333 INFO L280 TraceCheckUtils]: 67: Hoare triple {4166#(= 1 main_~lk2~0)} assume 1 != ~lk2~0; {4163#false} is VALID [2020-07-11 01:00:57,333 INFO L280 TraceCheckUtils]: 68: Hoare triple {4163#false} assume !false; {4163#false} is VALID [2020-07-11 01:00:57,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:00:57,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779529738] [2020-07-11 01:00:57,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:00:57,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:00:57,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737605703] [2020-07-11 01:00:57,337 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-11 01:00:57,338 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:00:57,338 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:00:57,390 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:00:57,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:00:57,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:00:57,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:00:57,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:00:57,392 INFO L87 Difference]: Start difference. First operand 267 states and 360 transitions. Second operand 3 states. [2020-07-11 01:00:57,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:00:57,917 INFO L93 Difference]: Finished difference Result 327 states and 446 transitions. [2020-07-11 01:00:57,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:00:57,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-11 01:00:57,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:00:57,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:00:57,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2020-07-11 01:00:57,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:00:57,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2020-07-11 01:00:57,924 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 197 transitions. [2020-07-11 01:00:58,111 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 197 edges. 197 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:00:58,120 INFO L225 Difference]: With dead ends: 327 [2020-07-11 01:00:58,120 INFO L226 Difference]: Without dead ends: 325 [2020-07-11 01:00:58,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:00:58,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-07-11 01:00:58,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 267. [2020-07-11 01:00:58,420 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:00:58,420 INFO L82 GeneralOperation]: Start isEquivalent. First operand 325 states. Second operand 267 states. [2020-07-11 01:00:58,421 INFO L74 IsIncluded]: Start isIncluded. First operand 325 states. Second operand 267 states. [2020-07-11 01:00:58,421 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 267 states. [2020-07-11 01:00:58,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:00:58,435 INFO L93 Difference]: Finished difference Result 325 states and 443 transitions. [2020-07-11 01:00:58,435 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 443 transitions. [2020-07-11 01:00:58,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:00:58,436 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:00:58,436 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states. Second operand 325 states. [2020-07-11 01:00:58,436 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 325 states. [2020-07-11 01:00:58,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:00:58,450 INFO L93 Difference]: Finished difference Result 325 states and 443 transitions. [2020-07-11 01:00:58,451 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 443 transitions. [2020-07-11 01:00:58,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:00:58,452 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:00:58,452 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:00:58,452 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:00:58,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-07-11 01:00:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 358 transitions. [2020-07-11 01:00:58,462 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 358 transitions. Word has length 69 [2020-07-11 01:00:58,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:00:58,463 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 358 transitions. [2020-07-11 01:00:58,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:00:58,463 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 267 states and 358 transitions. [2020-07-11 01:00:58,874 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 358 edges. 358 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:00:58,875 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 358 transitions. [2020-07-11 01:00:58,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-11 01:00:58,876 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:00:58,876 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] [2020-07-11 01:00:58,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-11 01:00:58,877 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:00:58,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:00:58,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1002841264, now seen corresponding path program 1 times [2020-07-11 01:00:58,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:00:58,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281288651] [2020-07-11 01:00:58,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:00:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:00:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:00:58,932 INFO L280 TraceCheckUtils]: 0: Hoare triple {6007#true} assume true; {6007#true} is VALID [2020-07-11 01:00:58,932 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {6007#true} {6007#true} #247#return; {6007#true} is VALID [2020-07-11 01:00:58,932 INFO L263 TraceCheckUtils]: 0: Hoare triple {6007#true} call ULTIMATE.init(); {6007#true} is VALID [2020-07-11 01:00:58,932 INFO L280 TraceCheckUtils]: 1: Hoare triple {6007#true} assume true; {6007#true} is VALID [2020-07-11 01:00:58,932 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6007#true} {6007#true} #247#return; {6007#true} is VALID [2020-07-11 01:00:58,933 INFO L263 TraceCheckUtils]: 3: Hoare triple {6007#true} call #t~ret10 := main(); {6007#true} is VALID [2020-07-11 01:00:58,933 INFO L280 TraceCheckUtils]: 4: Hoare triple {6007#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {6007#true} is VALID [2020-07-11 01:00:58,933 INFO L280 TraceCheckUtils]: 5: Hoare triple {6007#true} ~p1~0 := #t~nondet0; {6007#true} is VALID [2020-07-11 01:00:58,933 INFO L280 TraceCheckUtils]: 6: Hoare triple {6007#true} havoc #t~nondet0; {6007#true} is VALID [2020-07-11 01:00:58,934 INFO L280 TraceCheckUtils]: 7: Hoare triple {6007#true} havoc ~lk1~0; {6007#true} is VALID [2020-07-11 01:00:58,934 INFO L280 TraceCheckUtils]: 8: Hoare triple {6007#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {6007#true} is VALID [2020-07-11 01:00:58,934 INFO L280 TraceCheckUtils]: 9: Hoare triple {6007#true} ~p2~0 := #t~nondet1; {6007#true} is VALID [2020-07-11 01:00:58,934 INFO L280 TraceCheckUtils]: 10: Hoare triple {6007#true} havoc #t~nondet1; {6007#true} is VALID [2020-07-11 01:00:58,934 INFO L280 TraceCheckUtils]: 11: Hoare triple {6007#true} havoc ~lk2~0; {6007#true} is VALID [2020-07-11 01:00:58,935 INFO L280 TraceCheckUtils]: 12: Hoare triple {6007#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6007#true} is VALID [2020-07-11 01:00:58,935 INFO L280 TraceCheckUtils]: 13: Hoare triple {6007#true} ~p3~0 := #t~nondet2; {6007#true} is VALID [2020-07-11 01:00:58,935 INFO L280 TraceCheckUtils]: 14: Hoare triple {6007#true} havoc #t~nondet2; {6007#true} is VALID [2020-07-11 01:00:58,935 INFO L280 TraceCheckUtils]: 15: Hoare triple {6007#true} havoc ~lk3~0; {6007#true} is VALID [2020-07-11 01:00:58,935 INFO L280 TraceCheckUtils]: 16: Hoare triple {6007#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {6007#true} is VALID [2020-07-11 01:00:58,936 INFO L280 TraceCheckUtils]: 17: Hoare triple {6007#true} ~p4~0 := #t~nondet3; {6007#true} is VALID [2020-07-11 01:00:58,936 INFO L280 TraceCheckUtils]: 18: Hoare triple {6007#true} havoc #t~nondet3; {6007#true} is VALID [2020-07-11 01:00:58,936 INFO L280 TraceCheckUtils]: 19: Hoare triple {6007#true} havoc ~lk4~0; {6007#true} is VALID [2020-07-11 01:00:58,936 INFO L280 TraceCheckUtils]: 20: Hoare triple {6007#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {6007#true} is VALID [2020-07-11 01:00:58,936 INFO L280 TraceCheckUtils]: 21: Hoare triple {6007#true} ~p5~0 := #t~nondet4; {6007#true} is VALID [2020-07-11 01:00:58,937 INFO L280 TraceCheckUtils]: 22: Hoare triple {6007#true} havoc #t~nondet4; {6007#true} is VALID [2020-07-11 01:00:58,937 INFO L280 TraceCheckUtils]: 23: Hoare triple {6007#true} havoc ~lk5~0; {6007#true} is VALID [2020-07-11 01:00:58,937 INFO L280 TraceCheckUtils]: 24: Hoare triple {6007#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {6007#true} is VALID [2020-07-11 01:00:58,937 INFO L280 TraceCheckUtils]: 25: Hoare triple {6007#true} ~p6~0 := #t~nondet5; {6007#true} is VALID [2020-07-11 01:00:58,938 INFO L280 TraceCheckUtils]: 26: Hoare triple {6007#true} havoc #t~nondet5; {6007#true} is VALID [2020-07-11 01:00:58,938 INFO L280 TraceCheckUtils]: 27: Hoare triple {6007#true} havoc ~lk6~0; {6007#true} is VALID [2020-07-11 01:00:58,938 INFO L280 TraceCheckUtils]: 28: Hoare triple {6007#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {6007#true} is VALID [2020-07-11 01:00:58,938 INFO L280 TraceCheckUtils]: 29: Hoare triple {6007#true} ~p7~0 := #t~nondet6; {6007#true} is VALID [2020-07-11 01:00:58,938 INFO L280 TraceCheckUtils]: 30: Hoare triple {6007#true} havoc #t~nondet6; {6007#true} is VALID [2020-07-11 01:00:58,939 INFO L280 TraceCheckUtils]: 31: Hoare triple {6007#true} havoc ~lk7~0; {6007#true} is VALID [2020-07-11 01:00:58,939 INFO L280 TraceCheckUtils]: 32: Hoare triple {6007#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {6007#true} is VALID [2020-07-11 01:00:58,939 INFO L280 TraceCheckUtils]: 33: Hoare triple {6007#true} ~p8~0 := #t~nondet7; {6007#true} is VALID [2020-07-11 01:00:58,939 INFO L280 TraceCheckUtils]: 34: Hoare triple {6007#true} havoc #t~nondet7; {6007#true} is VALID [2020-07-11 01:00:58,939 INFO L280 TraceCheckUtils]: 35: Hoare triple {6007#true} havoc ~lk8~0; {6007#true} is VALID [2020-07-11 01:00:58,940 INFO L280 TraceCheckUtils]: 36: Hoare triple {6007#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {6007#true} is VALID [2020-07-11 01:00:58,940 INFO L280 TraceCheckUtils]: 37: Hoare triple {6007#true} ~p9~0 := #t~nondet8; {6007#true} is VALID [2020-07-11 01:00:58,940 INFO L280 TraceCheckUtils]: 38: Hoare triple {6007#true} havoc #t~nondet8; {6007#true} is VALID [2020-07-11 01:00:58,940 INFO L280 TraceCheckUtils]: 39: Hoare triple {6007#true} havoc ~lk9~0; {6007#true} is VALID [2020-07-11 01:00:58,941 INFO L280 TraceCheckUtils]: 40: Hoare triple {6007#true} havoc ~cond~0; {6007#true} is VALID [2020-07-11 01:00:58,941 INFO L280 TraceCheckUtils]: 41: Hoare triple {6007#true} assume !false; {6007#true} is VALID [2020-07-11 01:00:58,941 INFO L280 TraceCheckUtils]: 42: Hoare triple {6007#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {6007#true} is VALID [2020-07-11 01:00:58,941 INFO L280 TraceCheckUtils]: 43: Hoare triple {6007#true} ~cond~0 := #t~nondet9; {6007#true} is VALID [2020-07-11 01:00:58,941 INFO L280 TraceCheckUtils]: 44: Hoare triple {6007#true} havoc #t~nondet9; {6007#true} is VALID [2020-07-11 01:00:58,942 INFO L280 TraceCheckUtils]: 45: Hoare triple {6007#true} assume !(0 == ~cond~0); {6007#true} is VALID [2020-07-11 01:00:58,942 INFO L280 TraceCheckUtils]: 46: Hoare triple {6007#true} ~lk1~0 := 0; {6007#true} is VALID [2020-07-11 01:00:58,942 INFO L280 TraceCheckUtils]: 47: Hoare triple {6007#true} ~lk2~0 := 0; {6007#true} is VALID [2020-07-11 01:00:58,942 INFO L280 TraceCheckUtils]: 48: Hoare triple {6007#true} ~lk3~0 := 0; {6007#true} is VALID [2020-07-11 01:00:58,943 INFO L280 TraceCheckUtils]: 49: Hoare triple {6007#true} ~lk4~0 := 0; {6007#true} is VALID [2020-07-11 01:00:58,943 INFO L280 TraceCheckUtils]: 50: Hoare triple {6007#true} ~lk5~0 := 0; {6007#true} is VALID [2020-07-11 01:00:58,943 INFO L280 TraceCheckUtils]: 51: Hoare triple {6007#true} ~lk6~0 := 0; {6007#true} is VALID [2020-07-11 01:00:58,943 INFO L280 TraceCheckUtils]: 52: Hoare triple {6007#true} ~lk7~0 := 0; {6007#true} is VALID [2020-07-11 01:00:58,943 INFO L280 TraceCheckUtils]: 53: Hoare triple {6007#true} ~lk8~0 := 0; {6007#true} is VALID [2020-07-11 01:00:58,944 INFO L280 TraceCheckUtils]: 54: Hoare triple {6007#true} ~lk9~0 := 0; {6007#true} is VALID [2020-07-11 01:00:58,944 INFO L280 TraceCheckUtils]: 55: Hoare triple {6007#true} assume !(0 != ~p1~0); {6007#true} is VALID [2020-07-11 01:00:58,944 INFO L280 TraceCheckUtils]: 56: Hoare triple {6007#true} assume !(0 != ~p2~0); {6007#true} is VALID [2020-07-11 01:00:58,948 INFO L280 TraceCheckUtils]: 57: Hoare triple {6007#true} assume !(0 != ~p3~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-11 01:00:58,948 INFO L280 TraceCheckUtils]: 58: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p4~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-11 01:00:58,948 INFO L280 TraceCheckUtils]: 59: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p5~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-11 01:00:58,949 INFO L280 TraceCheckUtils]: 60: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p6~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-11 01:00:58,949 INFO L280 TraceCheckUtils]: 61: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p7~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-11 01:00:58,950 INFO L280 TraceCheckUtils]: 62: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p8~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-11 01:00:58,950 INFO L280 TraceCheckUtils]: 63: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p9~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-11 01:00:58,951 INFO L280 TraceCheckUtils]: 64: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p1~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-11 01:00:58,951 INFO L280 TraceCheckUtils]: 65: Hoare triple {6011#(= 0 main_~p3~0)} assume !(0 != ~p2~0); {6011#(= 0 main_~p3~0)} is VALID [2020-07-11 01:00:58,952 INFO L280 TraceCheckUtils]: 66: Hoare triple {6011#(= 0 main_~p3~0)} assume 0 != ~p3~0; {6008#false} is VALID [2020-07-11 01:00:58,952 INFO L280 TraceCheckUtils]: 67: Hoare triple {6008#false} assume 1 != ~lk3~0; {6008#false} is VALID [2020-07-11 01:00:58,952 INFO L280 TraceCheckUtils]: 68: Hoare triple {6008#false} assume !false; {6008#false} is VALID [2020-07-11 01:00:58,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:00:58,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281288651] [2020-07-11 01:00:58,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:00:58,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:00:58,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052155236] [2020-07-11 01:00:58,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-11 01:00:58,956 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:00:58,957 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:00:59,022 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:00:59,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:00:59,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:00:59,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:00:59,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:00:59,023 INFO L87 Difference]: Start difference. First operand 267 states and 358 transitions. Second operand 3 states. [2020-07-11 01:00:59,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:00:59,955 INFO L93 Difference]: Finished difference Result 707 states and 976 transitions. [2020-07-11 01:00:59,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:00:59,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-11 01:00:59,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:00:59,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:00:59,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2020-07-11 01:00:59,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:00:59,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2020-07-11 01:00:59,964 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 292 transitions. [2020-07-11 01:01:00,257 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 292 edges. 292 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:00,274 INFO L225 Difference]: With dead ends: 707 [2020-07-11 01:01:00,274 INFO L226 Difference]: Without dead ends: 481 [2020-07-11 01:01:00,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:01:00,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-07-11 01:01:00,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2020-07-11 01:01:00,843 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:01:00,843 INFO L82 GeneralOperation]: Start isEquivalent. First operand 481 states. Second operand 479 states. [2020-07-11 01:01:00,844 INFO L74 IsIncluded]: Start isIncluded. First operand 481 states. Second operand 479 states. [2020-07-11 01:01:00,844 INFO L87 Difference]: Start difference. First operand 481 states. Second operand 479 states. [2020-07-11 01:01:00,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:00,863 INFO L93 Difference]: Finished difference Result 481 states and 651 transitions. [2020-07-11 01:01:00,863 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 651 transitions. [2020-07-11 01:01:00,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:01:00,864 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:01:00,864 INFO L74 IsIncluded]: Start isIncluded. First operand 479 states. Second operand 481 states. [2020-07-11 01:01:00,864 INFO L87 Difference]: Start difference. First operand 479 states. Second operand 481 states. [2020-07-11 01:01:00,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:00,883 INFO L93 Difference]: Finished difference Result 481 states and 651 transitions. [2020-07-11 01:01:00,883 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 651 transitions. [2020-07-11 01:01:00,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:01:00,885 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:01:00,885 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:01:00,885 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:01:00,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-07-11 01:01:00,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 650 transitions. [2020-07-11 01:01:00,906 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 650 transitions. Word has length 69 [2020-07-11 01:01:00,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:01:00,906 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 650 transitions. [2020-07-11 01:01:00,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:01:00,906 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 479 states and 650 transitions. [2020-07-11 01:01:01,543 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 650 edges. 650 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:01,543 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 650 transitions. [2020-07-11 01:01:01,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-11 01:01:01,544 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:01:01,544 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] [2020-07-11 01:01:01,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-11 01:01:01,545 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:01:01,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:01:01,546 INFO L82 PathProgramCache]: Analyzing trace with hash -8681195, now seen corresponding path program 1 times [2020-07-11 01:01:01,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:01:01,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10577369] [2020-07-11 01:01:01,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:01:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:01:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:01:01,620 INFO L280 TraceCheckUtils]: 0: Hoare triple {9348#true} assume true; {9348#true} is VALID [2020-07-11 01:01:01,620 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {9348#true} {9348#true} #247#return; {9348#true} is VALID [2020-07-11 01:01:01,620 INFO L263 TraceCheckUtils]: 0: Hoare triple {9348#true} call ULTIMATE.init(); {9348#true} is VALID [2020-07-11 01:01:01,621 INFO L280 TraceCheckUtils]: 1: Hoare triple {9348#true} assume true; {9348#true} is VALID [2020-07-11 01:01:01,621 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {9348#true} {9348#true} #247#return; {9348#true} is VALID [2020-07-11 01:01:01,621 INFO L263 TraceCheckUtils]: 3: Hoare triple {9348#true} call #t~ret10 := main(); {9348#true} is VALID [2020-07-11 01:01:01,621 INFO L280 TraceCheckUtils]: 4: Hoare triple {9348#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {9348#true} is VALID [2020-07-11 01:01:01,621 INFO L280 TraceCheckUtils]: 5: Hoare triple {9348#true} ~p1~0 := #t~nondet0; {9348#true} is VALID [2020-07-11 01:01:01,622 INFO L280 TraceCheckUtils]: 6: Hoare triple {9348#true} havoc #t~nondet0; {9348#true} is VALID [2020-07-11 01:01:01,622 INFO L280 TraceCheckUtils]: 7: Hoare triple {9348#true} havoc ~lk1~0; {9348#true} is VALID [2020-07-11 01:01:01,622 INFO L280 TraceCheckUtils]: 8: Hoare triple {9348#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {9348#true} is VALID [2020-07-11 01:01:01,622 INFO L280 TraceCheckUtils]: 9: Hoare triple {9348#true} ~p2~0 := #t~nondet1; {9348#true} is VALID [2020-07-11 01:01:01,623 INFO L280 TraceCheckUtils]: 10: Hoare triple {9348#true} havoc #t~nondet1; {9348#true} is VALID [2020-07-11 01:01:01,623 INFO L280 TraceCheckUtils]: 11: Hoare triple {9348#true} havoc ~lk2~0; {9348#true} is VALID [2020-07-11 01:01:01,623 INFO L280 TraceCheckUtils]: 12: Hoare triple {9348#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9348#true} is VALID [2020-07-11 01:01:01,623 INFO L280 TraceCheckUtils]: 13: Hoare triple {9348#true} ~p3~0 := #t~nondet2; {9348#true} is VALID [2020-07-11 01:01:01,623 INFO L280 TraceCheckUtils]: 14: Hoare triple {9348#true} havoc #t~nondet2; {9348#true} is VALID [2020-07-11 01:01:01,624 INFO L280 TraceCheckUtils]: 15: Hoare triple {9348#true} havoc ~lk3~0; {9348#true} is VALID [2020-07-11 01:01:01,624 INFO L280 TraceCheckUtils]: 16: Hoare triple {9348#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {9348#true} is VALID [2020-07-11 01:01:01,624 INFO L280 TraceCheckUtils]: 17: Hoare triple {9348#true} ~p4~0 := #t~nondet3; {9348#true} is VALID [2020-07-11 01:01:01,624 INFO L280 TraceCheckUtils]: 18: Hoare triple {9348#true} havoc #t~nondet3; {9348#true} is VALID [2020-07-11 01:01:01,624 INFO L280 TraceCheckUtils]: 19: Hoare triple {9348#true} havoc ~lk4~0; {9348#true} is VALID [2020-07-11 01:01:01,625 INFO L280 TraceCheckUtils]: 20: Hoare triple {9348#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {9348#true} is VALID [2020-07-11 01:01:01,625 INFO L280 TraceCheckUtils]: 21: Hoare triple {9348#true} ~p5~0 := #t~nondet4; {9348#true} is VALID [2020-07-11 01:01:01,625 INFO L280 TraceCheckUtils]: 22: Hoare triple {9348#true} havoc #t~nondet4; {9348#true} is VALID [2020-07-11 01:01:01,625 INFO L280 TraceCheckUtils]: 23: Hoare triple {9348#true} havoc ~lk5~0; {9348#true} is VALID [2020-07-11 01:01:01,625 INFO L280 TraceCheckUtils]: 24: Hoare triple {9348#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {9348#true} is VALID [2020-07-11 01:01:01,626 INFO L280 TraceCheckUtils]: 25: Hoare triple {9348#true} ~p6~0 := #t~nondet5; {9348#true} is VALID [2020-07-11 01:01:01,626 INFO L280 TraceCheckUtils]: 26: Hoare triple {9348#true} havoc #t~nondet5; {9348#true} is VALID [2020-07-11 01:01:01,626 INFO L280 TraceCheckUtils]: 27: Hoare triple {9348#true} havoc ~lk6~0; {9348#true} is VALID [2020-07-11 01:01:01,626 INFO L280 TraceCheckUtils]: 28: Hoare triple {9348#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {9348#true} is VALID [2020-07-11 01:01:01,627 INFO L280 TraceCheckUtils]: 29: Hoare triple {9348#true} ~p7~0 := #t~nondet6; {9348#true} is VALID [2020-07-11 01:01:01,627 INFO L280 TraceCheckUtils]: 30: Hoare triple {9348#true} havoc #t~nondet6; {9348#true} is VALID [2020-07-11 01:01:01,627 INFO L280 TraceCheckUtils]: 31: Hoare triple {9348#true} havoc ~lk7~0; {9348#true} is VALID [2020-07-11 01:01:01,627 INFO L280 TraceCheckUtils]: 32: Hoare triple {9348#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {9348#true} is VALID [2020-07-11 01:01:01,627 INFO L280 TraceCheckUtils]: 33: Hoare triple {9348#true} ~p8~0 := #t~nondet7; {9348#true} is VALID [2020-07-11 01:01:01,628 INFO L280 TraceCheckUtils]: 34: Hoare triple {9348#true} havoc #t~nondet7; {9348#true} is VALID [2020-07-11 01:01:01,628 INFO L280 TraceCheckUtils]: 35: Hoare triple {9348#true} havoc ~lk8~0; {9348#true} is VALID [2020-07-11 01:01:01,628 INFO L280 TraceCheckUtils]: 36: Hoare triple {9348#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {9348#true} is VALID [2020-07-11 01:01:01,628 INFO L280 TraceCheckUtils]: 37: Hoare triple {9348#true} ~p9~0 := #t~nondet8; {9348#true} is VALID [2020-07-11 01:01:01,628 INFO L280 TraceCheckUtils]: 38: Hoare triple {9348#true} havoc #t~nondet8; {9348#true} is VALID [2020-07-11 01:01:01,629 INFO L280 TraceCheckUtils]: 39: Hoare triple {9348#true} havoc ~lk9~0; {9348#true} is VALID [2020-07-11 01:01:01,629 INFO L280 TraceCheckUtils]: 40: Hoare triple {9348#true} havoc ~cond~0; {9348#true} is VALID [2020-07-11 01:01:01,629 INFO L280 TraceCheckUtils]: 41: Hoare triple {9348#true} assume !false; {9348#true} is VALID [2020-07-11 01:01:01,629 INFO L280 TraceCheckUtils]: 42: Hoare triple {9348#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {9348#true} is VALID [2020-07-11 01:01:01,629 INFO L280 TraceCheckUtils]: 43: Hoare triple {9348#true} ~cond~0 := #t~nondet9; {9348#true} is VALID [2020-07-11 01:01:01,630 INFO L280 TraceCheckUtils]: 44: Hoare triple {9348#true} havoc #t~nondet9; {9348#true} is VALID [2020-07-11 01:01:01,630 INFO L280 TraceCheckUtils]: 45: Hoare triple {9348#true} assume !(0 == ~cond~0); {9348#true} is VALID [2020-07-11 01:01:01,630 INFO L280 TraceCheckUtils]: 46: Hoare triple {9348#true} ~lk1~0 := 0; {9348#true} is VALID [2020-07-11 01:01:01,630 INFO L280 TraceCheckUtils]: 47: Hoare triple {9348#true} ~lk2~0 := 0; {9348#true} is VALID [2020-07-11 01:01:01,631 INFO L280 TraceCheckUtils]: 48: Hoare triple {9348#true} ~lk3~0 := 0; {9348#true} is VALID [2020-07-11 01:01:01,631 INFO L280 TraceCheckUtils]: 49: Hoare triple {9348#true} ~lk4~0 := 0; {9348#true} is VALID [2020-07-11 01:01:01,631 INFO L280 TraceCheckUtils]: 50: Hoare triple {9348#true} ~lk5~0 := 0; {9348#true} is VALID [2020-07-11 01:01:01,631 INFO L280 TraceCheckUtils]: 51: Hoare triple {9348#true} ~lk6~0 := 0; {9348#true} is VALID [2020-07-11 01:01:01,631 INFO L280 TraceCheckUtils]: 52: Hoare triple {9348#true} ~lk7~0 := 0; {9348#true} is VALID [2020-07-11 01:01:01,632 INFO L280 TraceCheckUtils]: 53: Hoare triple {9348#true} ~lk8~0 := 0; {9348#true} is VALID [2020-07-11 01:01:01,632 INFO L280 TraceCheckUtils]: 54: Hoare triple {9348#true} ~lk9~0 := 0; {9348#true} is VALID [2020-07-11 01:01:01,632 INFO L280 TraceCheckUtils]: 55: Hoare triple {9348#true} assume !(0 != ~p1~0); {9348#true} is VALID [2020-07-11 01:01:01,632 INFO L280 TraceCheckUtils]: 56: Hoare triple {9348#true} assume !(0 != ~p2~0); {9348#true} is VALID [2020-07-11 01:01:01,632 INFO L280 TraceCheckUtils]: 57: Hoare triple {9348#true} assume 0 != ~p3~0; {9348#true} is VALID [2020-07-11 01:01:01,633 INFO L280 TraceCheckUtils]: 58: Hoare triple {9348#true} ~lk3~0 := 1; {9352#(= 1 main_~lk3~0)} is VALID [2020-07-11 01:01:01,634 INFO L280 TraceCheckUtils]: 59: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p4~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-11 01:01:01,634 INFO L280 TraceCheckUtils]: 60: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p5~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-11 01:01:01,635 INFO L280 TraceCheckUtils]: 61: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p6~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-11 01:01:01,635 INFO L280 TraceCheckUtils]: 62: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p7~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-11 01:01:01,636 INFO L280 TraceCheckUtils]: 63: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p8~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-11 01:01:01,636 INFO L280 TraceCheckUtils]: 64: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p9~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-11 01:01:01,637 INFO L280 TraceCheckUtils]: 65: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p1~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-11 01:01:01,637 INFO L280 TraceCheckUtils]: 66: Hoare triple {9352#(= 1 main_~lk3~0)} assume !(0 != ~p2~0); {9352#(= 1 main_~lk3~0)} is VALID [2020-07-11 01:01:01,638 INFO L280 TraceCheckUtils]: 67: Hoare triple {9352#(= 1 main_~lk3~0)} assume 0 != ~p3~0; {9352#(= 1 main_~lk3~0)} is VALID [2020-07-11 01:01:01,638 INFO L280 TraceCheckUtils]: 68: Hoare triple {9352#(= 1 main_~lk3~0)} assume 1 != ~lk3~0; {9349#false} is VALID [2020-07-11 01:01:01,638 INFO L280 TraceCheckUtils]: 69: Hoare triple {9349#false} assume !false; {9349#false} is VALID [2020-07-11 01:01:01,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:01:01,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10577369] [2020-07-11 01:01:01,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:01:01,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:01:01,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367771914] [2020-07-11 01:01:01,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-11 01:01:01,643 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:01:01,643 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:01:01,696 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:01,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:01:01,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:01:01,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:01:01,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:01:01,697 INFO L87 Difference]: Start difference. First operand 479 states and 650 transitions. Second operand 3 states. [2020-07-11 01:01:03,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:03,041 INFO L93 Difference]: Finished difference Result 587 states and 804 transitions. [2020-07-11 01:01:03,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:01:03,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-11 01:01:03,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:01:03,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:01:03,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2020-07-11 01:01:03,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:01:03,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2020-07-11 01:01:03,048 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 193 transitions. [2020-07-11 01:01:03,219 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 193 edges. 193 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:03,242 INFO L225 Difference]: With dead ends: 587 [2020-07-11 01:01:03,243 INFO L226 Difference]: Without dead ends: 585 [2020-07-11 01:01:03,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:01:03,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-07-11 01:01:03,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 479. [2020-07-11 01:01:03,893 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:01:03,893 INFO L82 GeneralOperation]: Start isEquivalent. First operand 585 states. Second operand 479 states. [2020-07-11 01:01:03,893 INFO L74 IsIncluded]: Start isIncluded. First operand 585 states. Second operand 479 states. [2020-07-11 01:01:03,893 INFO L87 Difference]: Start difference. First operand 585 states. Second operand 479 states. [2020-07-11 01:01:03,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:03,919 INFO L93 Difference]: Finished difference Result 585 states and 799 transitions. [2020-07-11 01:01:03,919 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 799 transitions. [2020-07-11 01:01:03,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:01:03,921 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:01:03,921 INFO L74 IsIncluded]: Start isIncluded. First operand 479 states. Second operand 585 states. [2020-07-11 01:01:03,921 INFO L87 Difference]: Start difference. First operand 479 states. Second operand 585 states. [2020-07-11 01:01:03,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:03,945 INFO L93 Difference]: Finished difference Result 585 states and 799 transitions. [2020-07-11 01:01:03,945 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 799 transitions. [2020-07-11 01:01:03,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:01:03,946 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:01:03,947 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:01:03,947 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:01:03,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-07-11 01:01:03,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 646 transitions. [2020-07-11 01:01:03,965 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 646 transitions. Word has length 70 [2020-07-11 01:01:03,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:01:03,965 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 646 transitions. [2020-07-11 01:01:03,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:01:03,965 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 479 states and 646 transitions. [2020-07-11 01:01:04,692 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 646 edges. 646 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:04,692 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 646 transitions. [2020-07-11 01:01:04,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-11 01:01:04,694 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:01:04,694 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] [2020-07-11 01:01:04,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-11 01:01:04,695 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:01:04,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:01:04,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1023553130, now seen corresponding path program 1 times [2020-07-11 01:01:04,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:01:04,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92198791] [2020-07-11 01:01:04,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:01:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:01:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:01:04,762 INFO L280 TraceCheckUtils]: 0: Hoare triple {12657#true} assume true; {12657#true} is VALID [2020-07-11 01:01:04,762 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {12657#true} {12657#true} #247#return; {12657#true} is VALID [2020-07-11 01:01:04,762 INFO L263 TraceCheckUtils]: 0: Hoare triple {12657#true} call ULTIMATE.init(); {12657#true} is VALID [2020-07-11 01:01:04,763 INFO L280 TraceCheckUtils]: 1: Hoare triple {12657#true} assume true; {12657#true} is VALID [2020-07-11 01:01:04,763 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {12657#true} {12657#true} #247#return; {12657#true} is VALID [2020-07-11 01:01:04,763 INFO L263 TraceCheckUtils]: 3: Hoare triple {12657#true} call #t~ret10 := main(); {12657#true} is VALID [2020-07-11 01:01:04,763 INFO L280 TraceCheckUtils]: 4: Hoare triple {12657#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {12657#true} is VALID [2020-07-11 01:01:04,764 INFO L280 TraceCheckUtils]: 5: Hoare triple {12657#true} ~p1~0 := #t~nondet0; {12657#true} is VALID [2020-07-11 01:01:04,764 INFO L280 TraceCheckUtils]: 6: Hoare triple {12657#true} havoc #t~nondet0; {12657#true} is VALID [2020-07-11 01:01:04,764 INFO L280 TraceCheckUtils]: 7: Hoare triple {12657#true} havoc ~lk1~0; {12657#true} is VALID [2020-07-11 01:01:04,764 INFO L280 TraceCheckUtils]: 8: Hoare triple {12657#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {12657#true} is VALID [2020-07-11 01:01:04,764 INFO L280 TraceCheckUtils]: 9: Hoare triple {12657#true} ~p2~0 := #t~nondet1; {12657#true} is VALID [2020-07-11 01:01:04,765 INFO L280 TraceCheckUtils]: 10: Hoare triple {12657#true} havoc #t~nondet1; {12657#true} is VALID [2020-07-11 01:01:04,765 INFO L280 TraceCheckUtils]: 11: Hoare triple {12657#true} havoc ~lk2~0; {12657#true} is VALID [2020-07-11 01:01:04,765 INFO L280 TraceCheckUtils]: 12: Hoare triple {12657#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {12657#true} is VALID [2020-07-11 01:01:04,765 INFO L280 TraceCheckUtils]: 13: Hoare triple {12657#true} ~p3~0 := #t~nondet2; {12657#true} is VALID [2020-07-11 01:01:04,766 INFO L280 TraceCheckUtils]: 14: Hoare triple {12657#true} havoc #t~nondet2; {12657#true} is VALID [2020-07-11 01:01:04,766 INFO L280 TraceCheckUtils]: 15: Hoare triple {12657#true} havoc ~lk3~0; {12657#true} is VALID [2020-07-11 01:01:04,766 INFO L280 TraceCheckUtils]: 16: Hoare triple {12657#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {12657#true} is VALID [2020-07-11 01:01:04,766 INFO L280 TraceCheckUtils]: 17: Hoare triple {12657#true} ~p4~0 := #t~nondet3; {12657#true} is VALID [2020-07-11 01:01:04,767 INFO L280 TraceCheckUtils]: 18: Hoare triple {12657#true} havoc #t~nondet3; {12657#true} is VALID [2020-07-11 01:01:04,767 INFO L280 TraceCheckUtils]: 19: Hoare triple {12657#true} havoc ~lk4~0; {12657#true} is VALID [2020-07-11 01:01:04,767 INFO L280 TraceCheckUtils]: 20: Hoare triple {12657#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {12657#true} is VALID [2020-07-11 01:01:04,767 INFO L280 TraceCheckUtils]: 21: Hoare triple {12657#true} ~p5~0 := #t~nondet4; {12657#true} is VALID [2020-07-11 01:01:04,767 INFO L280 TraceCheckUtils]: 22: Hoare triple {12657#true} havoc #t~nondet4; {12657#true} is VALID [2020-07-11 01:01:04,767 INFO L280 TraceCheckUtils]: 23: Hoare triple {12657#true} havoc ~lk5~0; {12657#true} is VALID [2020-07-11 01:01:04,768 INFO L280 TraceCheckUtils]: 24: Hoare triple {12657#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {12657#true} is VALID [2020-07-11 01:01:04,768 INFO L280 TraceCheckUtils]: 25: Hoare triple {12657#true} ~p6~0 := #t~nondet5; {12657#true} is VALID [2020-07-11 01:01:04,768 INFO L280 TraceCheckUtils]: 26: Hoare triple {12657#true} havoc #t~nondet5; {12657#true} is VALID [2020-07-11 01:01:04,768 INFO L280 TraceCheckUtils]: 27: Hoare triple {12657#true} havoc ~lk6~0; {12657#true} is VALID [2020-07-11 01:01:04,768 INFO L280 TraceCheckUtils]: 28: Hoare triple {12657#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {12657#true} is VALID [2020-07-11 01:01:04,769 INFO L280 TraceCheckUtils]: 29: Hoare triple {12657#true} ~p7~0 := #t~nondet6; {12657#true} is VALID [2020-07-11 01:01:04,769 INFO L280 TraceCheckUtils]: 30: Hoare triple {12657#true} havoc #t~nondet6; {12657#true} is VALID [2020-07-11 01:01:04,769 INFO L280 TraceCheckUtils]: 31: Hoare triple {12657#true} havoc ~lk7~0; {12657#true} is VALID [2020-07-11 01:01:04,769 INFO L280 TraceCheckUtils]: 32: Hoare triple {12657#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {12657#true} is VALID [2020-07-11 01:01:04,769 INFO L280 TraceCheckUtils]: 33: Hoare triple {12657#true} ~p8~0 := #t~nondet7; {12657#true} is VALID [2020-07-11 01:01:04,769 INFO L280 TraceCheckUtils]: 34: Hoare triple {12657#true} havoc #t~nondet7; {12657#true} is VALID [2020-07-11 01:01:04,770 INFO L280 TraceCheckUtils]: 35: Hoare triple {12657#true} havoc ~lk8~0; {12657#true} is VALID [2020-07-11 01:01:04,770 INFO L280 TraceCheckUtils]: 36: Hoare triple {12657#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {12657#true} is VALID [2020-07-11 01:01:04,770 INFO L280 TraceCheckUtils]: 37: Hoare triple {12657#true} ~p9~0 := #t~nondet8; {12657#true} is VALID [2020-07-11 01:01:04,770 INFO L280 TraceCheckUtils]: 38: Hoare triple {12657#true} havoc #t~nondet8; {12657#true} is VALID [2020-07-11 01:01:04,770 INFO L280 TraceCheckUtils]: 39: Hoare triple {12657#true} havoc ~lk9~0; {12657#true} is VALID [2020-07-11 01:01:04,771 INFO L280 TraceCheckUtils]: 40: Hoare triple {12657#true} havoc ~cond~0; {12657#true} is VALID [2020-07-11 01:01:04,771 INFO L280 TraceCheckUtils]: 41: Hoare triple {12657#true} assume !false; {12657#true} is VALID [2020-07-11 01:01:04,771 INFO L280 TraceCheckUtils]: 42: Hoare triple {12657#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {12657#true} is VALID [2020-07-11 01:01:04,771 INFO L280 TraceCheckUtils]: 43: Hoare triple {12657#true} ~cond~0 := #t~nondet9; {12657#true} is VALID [2020-07-11 01:01:04,771 INFO L280 TraceCheckUtils]: 44: Hoare triple {12657#true} havoc #t~nondet9; {12657#true} is VALID [2020-07-11 01:01:04,771 INFO L280 TraceCheckUtils]: 45: Hoare triple {12657#true} assume !(0 == ~cond~0); {12657#true} is VALID [2020-07-11 01:01:04,772 INFO L280 TraceCheckUtils]: 46: Hoare triple {12657#true} ~lk1~0 := 0; {12657#true} is VALID [2020-07-11 01:01:04,772 INFO L280 TraceCheckUtils]: 47: Hoare triple {12657#true} ~lk2~0 := 0; {12657#true} is VALID [2020-07-11 01:01:04,772 INFO L280 TraceCheckUtils]: 48: Hoare triple {12657#true} ~lk3~0 := 0; {12657#true} is VALID [2020-07-11 01:01:04,772 INFO L280 TraceCheckUtils]: 49: Hoare triple {12657#true} ~lk4~0 := 0; {12657#true} is VALID [2020-07-11 01:01:04,772 INFO L280 TraceCheckUtils]: 50: Hoare triple {12657#true} ~lk5~0 := 0; {12657#true} is VALID [2020-07-11 01:01:04,772 INFO L280 TraceCheckUtils]: 51: Hoare triple {12657#true} ~lk6~0 := 0; {12657#true} is VALID [2020-07-11 01:01:04,773 INFO L280 TraceCheckUtils]: 52: Hoare triple {12657#true} ~lk7~0 := 0; {12657#true} is VALID [2020-07-11 01:01:04,773 INFO L280 TraceCheckUtils]: 53: Hoare triple {12657#true} ~lk8~0 := 0; {12657#true} is VALID [2020-07-11 01:01:04,773 INFO L280 TraceCheckUtils]: 54: Hoare triple {12657#true} ~lk9~0 := 0; {12657#true} is VALID [2020-07-11 01:01:04,773 INFO L280 TraceCheckUtils]: 55: Hoare triple {12657#true} assume !(0 != ~p1~0); {12657#true} is VALID [2020-07-11 01:01:04,773 INFO L280 TraceCheckUtils]: 56: Hoare triple {12657#true} assume !(0 != ~p2~0); {12657#true} is VALID [2020-07-11 01:01:04,774 INFO L280 TraceCheckUtils]: 57: Hoare triple {12657#true} assume !(0 != ~p3~0); {12657#true} is VALID [2020-07-11 01:01:04,774 INFO L280 TraceCheckUtils]: 58: Hoare triple {12657#true} assume !(0 != ~p4~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-11 01:01:04,775 INFO L280 TraceCheckUtils]: 59: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p5~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-11 01:01:04,775 INFO L280 TraceCheckUtils]: 60: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p6~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-11 01:01:04,776 INFO L280 TraceCheckUtils]: 61: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p7~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-11 01:01:04,776 INFO L280 TraceCheckUtils]: 62: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p8~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-11 01:01:04,777 INFO L280 TraceCheckUtils]: 63: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p9~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-11 01:01:04,777 INFO L280 TraceCheckUtils]: 64: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p1~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-11 01:01:04,778 INFO L280 TraceCheckUtils]: 65: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p2~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-11 01:01:04,778 INFO L280 TraceCheckUtils]: 66: Hoare triple {12661#(= 0 main_~p4~0)} assume !(0 != ~p3~0); {12661#(= 0 main_~p4~0)} is VALID [2020-07-11 01:01:04,779 INFO L280 TraceCheckUtils]: 67: Hoare triple {12661#(= 0 main_~p4~0)} assume 0 != ~p4~0; {12658#false} is VALID [2020-07-11 01:01:04,780 INFO L280 TraceCheckUtils]: 68: Hoare triple {12658#false} assume 1 != ~lk4~0; {12658#false} is VALID [2020-07-11 01:01:04,780 INFO L280 TraceCheckUtils]: 69: Hoare triple {12658#false} assume !false; {12658#false} is VALID [2020-07-11 01:01:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:01:04,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92198791] [2020-07-11 01:01:04,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:01:04,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:01:04,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904335248] [2020-07-11 01:01:04,784 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-11 01:01:04,784 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:01:04,785 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:01:04,881 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:04,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:01:04,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:01:04,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:01:04,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:01:04,882 INFO L87 Difference]: Start difference. First operand 479 states and 646 transitions. Second operand 3 states. [2020-07-11 01:01:06,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:06,884 INFO L93 Difference]: Finished difference Result 1331 states and 1824 transitions. [2020-07-11 01:01:06,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:01:06,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-11 01:01:06,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:01:06,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:01:06,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2020-07-11 01:01:06,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:01:06,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2020-07-11 01:01:06,890 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 289 transitions. [2020-07-11 01:01:07,122 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 289 edges. 289 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:07,173 INFO L225 Difference]: With dead ends: 1331 [2020-07-11 01:01:07,173 INFO L226 Difference]: Without dead ends: 893 [2020-07-11 01:01:07,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:01:07,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-07-11 01:01:08,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 891. [2020-07-11 01:01:08,595 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:01:08,596 INFO L82 GeneralOperation]: Start isEquivalent. First operand 893 states. Second operand 891 states. [2020-07-11 01:01:08,596 INFO L74 IsIncluded]: Start isIncluded. First operand 893 states. Second operand 891 states. [2020-07-11 01:01:08,596 INFO L87 Difference]: Start difference. First operand 893 states. Second operand 891 states. [2020-07-11 01:01:08,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:08,647 INFO L93 Difference]: Finished difference Result 893 states and 1203 transitions. [2020-07-11 01:01:08,647 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1203 transitions. [2020-07-11 01:01:08,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:01:08,649 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:01:08,649 INFO L74 IsIncluded]: Start isIncluded. First operand 891 states. Second operand 893 states. [2020-07-11 01:01:08,649 INFO L87 Difference]: Start difference. First operand 891 states. Second operand 893 states. [2020-07-11 01:01:08,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:08,703 INFO L93 Difference]: Finished difference Result 893 states and 1203 transitions. [2020-07-11 01:01:08,703 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1203 transitions. [2020-07-11 01:01:08,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:01:08,705 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:01:08,705 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:01:08,705 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:01:08,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-07-11 01:01:08,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1202 transitions. [2020-07-11 01:01:08,763 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1202 transitions. Word has length 70 [2020-07-11 01:01:08,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:01:08,763 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1202 transitions. [2020-07-11 01:01:08,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:01:08,763 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 891 states and 1202 transitions. [2020-07-11 01:01:10,331 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 1202 edges. 1202 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:10,332 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1202 transitions. [2020-07-11 01:01:10,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-11 01:01:10,333 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:01:10,333 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] [2020-07-11 01:01:10,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-11 01:01:10,334 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:01:10,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:01:10,334 INFO L82 PathProgramCache]: Analyzing trace with hash 490835914, now seen corresponding path program 1 times [2020-07-11 01:01:10,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:01:10,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331441802] [2020-07-11 01:01:10,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:01:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:01:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:01:10,406 INFO L280 TraceCheckUtils]: 0: Hoare triple {18894#true} assume true; {18894#true} is VALID [2020-07-11 01:01:10,407 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {18894#true} {18894#true} #247#return; {18894#true} is VALID [2020-07-11 01:01:10,407 INFO L263 TraceCheckUtils]: 0: Hoare triple {18894#true} call ULTIMATE.init(); {18894#true} is VALID [2020-07-11 01:01:10,407 INFO L280 TraceCheckUtils]: 1: Hoare triple {18894#true} assume true; {18894#true} is VALID [2020-07-11 01:01:10,407 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {18894#true} {18894#true} #247#return; {18894#true} is VALID [2020-07-11 01:01:10,407 INFO L263 TraceCheckUtils]: 3: Hoare triple {18894#true} call #t~ret10 := main(); {18894#true} is VALID [2020-07-11 01:01:10,408 INFO L280 TraceCheckUtils]: 4: Hoare triple {18894#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {18894#true} is VALID [2020-07-11 01:01:10,408 INFO L280 TraceCheckUtils]: 5: Hoare triple {18894#true} ~p1~0 := #t~nondet0; {18894#true} is VALID [2020-07-11 01:01:10,408 INFO L280 TraceCheckUtils]: 6: Hoare triple {18894#true} havoc #t~nondet0; {18894#true} is VALID [2020-07-11 01:01:10,408 INFO L280 TraceCheckUtils]: 7: Hoare triple {18894#true} havoc ~lk1~0; {18894#true} is VALID [2020-07-11 01:01:10,408 INFO L280 TraceCheckUtils]: 8: Hoare triple {18894#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {18894#true} is VALID [2020-07-11 01:01:10,408 INFO L280 TraceCheckUtils]: 9: Hoare triple {18894#true} ~p2~0 := #t~nondet1; {18894#true} is VALID [2020-07-11 01:01:10,409 INFO L280 TraceCheckUtils]: 10: Hoare triple {18894#true} havoc #t~nondet1; {18894#true} is VALID [2020-07-11 01:01:10,409 INFO L280 TraceCheckUtils]: 11: Hoare triple {18894#true} havoc ~lk2~0; {18894#true} is VALID [2020-07-11 01:01:10,409 INFO L280 TraceCheckUtils]: 12: Hoare triple {18894#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {18894#true} is VALID [2020-07-11 01:01:10,409 INFO L280 TraceCheckUtils]: 13: Hoare triple {18894#true} ~p3~0 := #t~nondet2; {18894#true} is VALID [2020-07-11 01:01:10,410 INFO L280 TraceCheckUtils]: 14: Hoare triple {18894#true} havoc #t~nondet2; {18894#true} is VALID [2020-07-11 01:01:10,414 INFO L280 TraceCheckUtils]: 15: Hoare triple {18894#true} havoc ~lk3~0; {18894#true} is VALID [2020-07-11 01:01:10,414 INFO L280 TraceCheckUtils]: 16: Hoare triple {18894#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {18894#true} is VALID [2020-07-11 01:01:10,414 INFO L280 TraceCheckUtils]: 17: Hoare triple {18894#true} ~p4~0 := #t~nondet3; {18894#true} is VALID [2020-07-11 01:01:10,415 INFO L280 TraceCheckUtils]: 18: Hoare triple {18894#true} havoc #t~nondet3; {18894#true} is VALID [2020-07-11 01:01:10,415 INFO L280 TraceCheckUtils]: 19: Hoare triple {18894#true} havoc ~lk4~0; {18894#true} is VALID [2020-07-11 01:01:10,415 INFO L280 TraceCheckUtils]: 20: Hoare triple {18894#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {18894#true} is VALID [2020-07-11 01:01:10,415 INFO L280 TraceCheckUtils]: 21: Hoare triple {18894#true} ~p5~0 := #t~nondet4; {18894#true} is VALID [2020-07-11 01:01:10,415 INFO L280 TraceCheckUtils]: 22: Hoare triple {18894#true} havoc #t~nondet4; {18894#true} is VALID [2020-07-11 01:01:10,416 INFO L280 TraceCheckUtils]: 23: Hoare triple {18894#true} havoc ~lk5~0; {18894#true} is VALID [2020-07-11 01:01:10,416 INFO L280 TraceCheckUtils]: 24: Hoare triple {18894#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {18894#true} is VALID [2020-07-11 01:01:10,416 INFO L280 TraceCheckUtils]: 25: Hoare triple {18894#true} ~p6~0 := #t~nondet5; {18894#true} is VALID [2020-07-11 01:01:10,416 INFO L280 TraceCheckUtils]: 26: Hoare triple {18894#true} havoc #t~nondet5; {18894#true} is VALID [2020-07-11 01:01:10,416 INFO L280 TraceCheckUtils]: 27: Hoare triple {18894#true} havoc ~lk6~0; {18894#true} is VALID [2020-07-11 01:01:10,416 INFO L280 TraceCheckUtils]: 28: Hoare triple {18894#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {18894#true} is VALID [2020-07-11 01:01:10,417 INFO L280 TraceCheckUtils]: 29: Hoare triple {18894#true} ~p7~0 := #t~nondet6; {18894#true} is VALID [2020-07-11 01:01:10,417 INFO L280 TraceCheckUtils]: 30: Hoare triple {18894#true} havoc #t~nondet6; {18894#true} is VALID [2020-07-11 01:01:10,417 INFO L280 TraceCheckUtils]: 31: Hoare triple {18894#true} havoc ~lk7~0; {18894#true} is VALID [2020-07-11 01:01:10,417 INFO L280 TraceCheckUtils]: 32: Hoare triple {18894#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {18894#true} is VALID [2020-07-11 01:01:10,417 INFO L280 TraceCheckUtils]: 33: Hoare triple {18894#true} ~p8~0 := #t~nondet7; {18894#true} is VALID [2020-07-11 01:01:10,418 INFO L280 TraceCheckUtils]: 34: Hoare triple {18894#true} havoc #t~nondet7; {18894#true} is VALID [2020-07-11 01:01:10,418 INFO L280 TraceCheckUtils]: 35: Hoare triple {18894#true} havoc ~lk8~0; {18894#true} is VALID [2020-07-11 01:01:10,418 INFO L280 TraceCheckUtils]: 36: Hoare triple {18894#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {18894#true} is VALID [2020-07-11 01:01:10,418 INFO L280 TraceCheckUtils]: 37: Hoare triple {18894#true} ~p9~0 := #t~nondet8; {18894#true} is VALID [2020-07-11 01:01:10,418 INFO L280 TraceCheckUtils]: 38: Hoare triple {18894#true} havoc #t~nondet8; {18894#true} is VALID [2020-07-11 01:01:10,418 INFO L280 TraceCheckUtils]: 39: Hoare triple {18894#true} havoc ~lk9~0; {18894#true} is VALID [2020-07-11 01:01:10,419 INFO L280 TraceCheckUtils]: 40: Hoare triple {18894#true} havoc ~cond~0; {18894#true} is VALID [2020-07-11 01:01:10,419 INFO L280 TraceCheckUtils]: 41: Hoare triple {18894#true} assume !false; {18894#true} is VALID [2020-07-11 01:01:10,419 INFO L280 TraceCheckUtils]: 42: Hoare triple {18894#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {18894#true} is VALID [2020-07-11 01:01:10,419 INFO L280 TraceCheckUtils]: 43: Hoare triple {18894#true} ~cond~0 := #t~nondet9; {18894#true} is VALID [2020-07-11 01:01:10,419 INFO L280 TraceCheckUtils]: 44: Hoare triple {18894#true} havoc #t~nondet9; {18894#true} is VALID [2020-07-11 01:01:10,420 INFO L280 TraceCheckUtils]: 45: Hoare triple {18894#true} assume !(0 == ~cond~0); {18894#true} is VALID [2020-07-11 01:01:10,420 INFO L280 TraceCheckUtils]: 46: Hoare triple {18894#true} ~lk1~0 := 0; {18894#true} is VALID [2020-07-11 01:01:10,420 INFO L280 TraceCheckUtils]: 47: Hoare triple {18894#true} ~lk2~0 := 0; {18894#true} is VALID [2020-07-11 01:01:10,420 INFO L280 TraceCheckUtils]: 48: Hoare triple {18894#true} ~lk3~0 := 0; {18894#true} is VALID [2020-07-11 01:01:10,420 INFO L280 TraceCheckUtils]: 49: Hoare triple {18894#true} ~lk4~0 := 0; {18894#true} is VALID [2020-07-11 01:01:10,420 INFO L280 TraceCheckUtils]: 50: Hoare triple {18894#true} ~lk5~0 := 0; {18894#true} is VALID [2020-07-11 01:01:10,421 INFO L280 TraceCheckUtils]: 51: Hoare triple {18894#true} ~lk6~0 := 0; {18894#true} is VALID [2020-07-11 01:01:10,421 INFO L280 TraceCheckUtils]: 52: Hoare triple {18894#true} ~lk7~0 := 0; {18894#true} is VALID [2020-07-11 01:01:10,421 INFO L280 TraceCheckUtils]: 53: Hoare triple {18894#true} ~lk8~0 := 0; {18894#true} is VALID [2020-07-11 01:01:10,421 INFO L280 TraceCheckUtils]: 54: Hoare triple {18894#true} ~lk9~0 := 0; {18894#true} is VALID [2020-07-11 01:01:10,421 INFO L280 TraceCheckUtils]: 55: Hoare triple {18894#true} assume !(0 != ~p1~0); {18894#true} is VALID [2020-07-11 01:01:10,422 INFO L280 TraceCheckUtils]: 56: Hoare triple {18894#true} assume !(0 != ~p2~0); {18894#true} is VALID [2020-07-11 01:01:10,422 INFO L280 TraceCheckUtils]: 57: Hoare triple {18894#true} assume !(0 != ~p3~0); {18894#true} is VALID [2020-07-11 01:01:10,422 INFO L280 TraceCheckUtils]: 58: Hoare triple {18894#true} assume 0 != ~p4~0; {18894#true} is VALID [2020-07-11 01:01:10,423 INFO L280 TraceCheckUtils]: 59: Hoare triple {18894#true} ~lk4~0 := 1; {18898#(= 1 main_~lk4~0)} is VALID [2020-07-11 01:01:10,423 INFO L280 TraceCheckUtils]: 60: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p5~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-11 01:01:10,424 INFO L280 TraceCheckUtils]: 61: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p6~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-11 01:01:10,424 INFO L280 TraceCheckUtils]: 62: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p7~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-11 01:01:10,425 INFO L280 TraceCheckUtils]: 63: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p8~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-11 01:01:10,425 INFO L280 TraceCheckUtils]: 64: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p9~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-11 01:01:10,426 INFO L280 TraceCheckUtils]: 65: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p1~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-11 01:01:10,426 INFO L280 TraceCheckUtils]: 66: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p2~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-11 01:01:10,427 INFO L280 TraceCheckUtils]: 67: Hoare triple {18898#(= 1 main_~lk4~0)} assume !(0 != ~p3~0); {18898#(= 1 main_~lk4~0)} is VALID [2020-07-11 01:01:10,428 INFO L280 TraceCheckUtils]: 68: Hoare triple {18898#(= 1 main_~lk4~0)} assume 0 != ~p4~0; {18898#(= 1 main_~lk4~0)} is VALID [2020-07-11 01:01:10,428 INFO L280 TraceCheckUtils]: 69: Hoare triple {18898#(= 1 main_~lk4~0)} assume 1 != ~lk4~0; {18895#false} is VALID [2020-07-11 01:01:10,428 INFO L280 TraceCheckUtils]: 70: Hoare triple {18895#false} assume !false; {18895#false} is VALID [2020-07-11 01:01:10,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:01:10,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331441802] [2020-07-11 01:01:10,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:01:10,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:01:10,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809106892] [2020-07-11 01:01:10,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-11 01:01:10,433 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:01:10,434 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:01:10,493 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:10,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:01:10,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:01:10,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:01:10,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:01:10,494 INFO L87 Difference]: Start difference. First operand 891 states and 1202 transitions. Second operand 3 states. [2020-07-11 01:01:12,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:12,608 INFO L93 Difference]: Finished difference Result 1087 states and 1476 transitions. [2020-07-11 01:01:12,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:01:12,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-11 01:01:12,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:01:12,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:01:12,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2020-07-11 01:01:12,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:01:12,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2020-07-11 01:01:12,612 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 189 transitions. [2020-07-11 01:01:12,783 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:12,834 INFO L225 Difference]: With dead ends: 1087 [2020-07-11 01:01:12,834 INFO L226 Difference]: Without dead ends: 1085 [2020-07-11 01:01:12,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:01:12,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2020-07-11 01:01:14,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 891. [2020-07-11 01:01:14,411 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:01:14,411 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1085 states. Second operand 891 states. [2020-07-11 01:01:14,412 INFO L74 IsIncluded]: Start isIncluded. First operand 1085 states. Second operand 891 states. [2020-07-11 01:01:14,412 INFO L87 Difference]: Start difference. First operand 1085 states. Second operand 891 states. [2020-07-11 01:01:14,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:14,459 INFO L93 Difference]: Finished difference Result 1085 states and 1467 transitions. [2020-07-11 01:01:14,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1467 transitions. [2020-07-11 01:01:14,461 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:01:14,461 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:01:14,462 INFO L74 IsIncluded]: Start isIncluded. First operand 891 states. Second operand 1085 states. [2020-07-11 01:01:14,462 INFO L87 Difference]: Start difference. First operand 891 states. Second operand 1085 states. [2020-07-11 01:01:14,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:14,517 INFO L93 Difference]: Finished difference Result 1085 states and 1467 transitions. [2020-07-11 01:01:14,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1467 transitions. [2020-07-11 01:01:14,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:01:14,519 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:01:14,519 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:01:14,519 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:01:14,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-07-11 01:01:14,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1194 transitions. [2020-07-11 01:01:14,568 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1194 transitions. Word has length 71 [2020-07-11 01:01:14,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:01:14,569 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1194 transitions. [2020-07-11 01:01:14,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:01:14,569 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 891 states and 1194 transitions. [2020-07-11 01:01:15,981 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 1194 edges. 1194 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:15,981 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1194 transitions. [2020-07-11 01:01:15,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-11 01:01:15,983 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:01:15,983 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] [2020-07-11 01:01:15,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-11 01:01:15,984 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:01:15,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:01:15,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1665621348, now seen corresponding path program 1 times [2020-07-11 01:01:15,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:01:15,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852952387] [2020-07-11 01:01:15,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:01:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:01:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:01:16,033 INFO L280 TraceCheckUtils]: 0: Hoare triple {25027#true} assume true; {25027#true} is VALID [2020-07-11 01:01:16,033 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {25027#true} {25027#true} #247#return; {25027#true} is VALID [2020-07-11 01:01:16,033 INFO L263 TraceCheckUtils]: 0: Hoare triple {25027#true} call ULTIMATE.init(); {25027#true} is VALID [2020-07-11 01:01:16,034 INFO L280 TraceCheckUtils]: 1: Hoare triple {25027#true} assume true; {25027#true} is VALID [2020-07-11 01:01:16,034 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {25027#true} {25027#true} #247#return; {25027#true} is VALID [2020-07-11 01:01:16,034 INFO L263 TraceCheckUtils]: 3: Hoare triple {25027#true} call #t~ret10 := main(); {25027#true} is VALID [2020-07-11 01:01:16,034 INFO L280 TraceCheckUtils]: 4: Hoare triple {25027#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {25027#true} is VALID [2020-07-11 01:01:16,034 INFO L280 TraceCheckUtils]: 5: Hoare triple {25027#true} ~p1~0 := #t~nondet0; {25027#true} is VALID [2020-07-11 01:01:16,035 INFO L280 TraceCheckUtils]: 6: Hoare triple {25027#true} havoc #t~nondet0; {25027#true} is VALID [2020-07-11 01:01:16,035 INFO L280 TraceCheckUtils]: 7: Hoare triple {25027#true} havoc ~lk1~0; {25027#true} is VALID [2020-07-11 01:01:16,035 INFO L280 TraceCheckUtils]: 8: Hoare triple {25027#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {25027#true} is VALID [2020-07-11 01:01:16,035 INFO L280 TraceCheckUtils]: 9: Hoare triple {25027#true} ~p2~0 := #t~nondet1; {25027#true} is VALID [2020-07-11 01:01:16,035 INFO L280 TraceCheckUtils]: 10: Hoare triple {25027#true} havoc #t~nondet1; {25027#true} is VALID [2020-07-11 01:01:16,036 INFO L280 TraceCheckUtils]: 11: Hoare triple {25027#true} havoc ~lk2~0; {25027#true} is VALID [2020-07-11 01:01:16,036 INFO L280 TraceCheckUtils]: 12: Hoare triple {25027#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {25027#true} is VALID [2020-07-11 01:01:16,036 INFO L280 TraceCheckUtils]: 13: Hoare triple {25027#true} ~p3~0 := #t~nondet2; {25027#true} is VALID [2020-07-11 01:01:16,036 INFO L280 TraceCheckUtils]: 14: Hoare triple {25027#true} havoc #t~nondet2; {25027#true} is VALID [2020-07-11 01:01:16,036 INFO L280 TraceCheckUtils]: 15: Hoare triple {25027#true} havoc ~lk3~0; {25027#true} is VALID [2020-07-11 01:01:16,037 INFO L280 TraceCheckUtils]: 16: Hoare triple {25027#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {25027#true} is VALID [2020-07-11 01:01:16,037 INFO L280 TraceCheckUtils]: 17: Hoare triple {25027#true} ~p4~0 := #t~nondet3; {25027#true} is VALID [2020-07-11 01:01:16,037 INFO L280 TraceCheckUtils]: 18: Hoare triple {25027#true} havoc #t~nondet3; {25027#true} is VALID [2020-07-11 01:01:16,037 INFO L280 TraceCheckUtils]: 19: Hoare triple {25027#true} havoc ~lk4~0; {25027#true} is VALID [2020-07-11 01:01:16,037 INFO L280 TraceCheckUtils]: 20: Hoare triple {25027#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {25027#true} is VALID [2020-07-11 01:01:16,037 INFO L280 TraceCheckUtils]: 21: Hoare triple {25027#true} ~p5~0 := #t~nondet4; {25027#true} is VALID [2020-07-11 01:01:16,038 INFO L280 TraceCheckUtils]: 22: Hoare triple {25027#true} havoc #t~nondet4; {25027#true} is VALID [2020-07-11 01:01:16,038 INFO L280 TraceCheckUtils]: 23: Hoare triple {25027#true} havoc ~lk5~0; {25027#true} is VALID [2020-07-11 01:01:16,038 INFO L280 TraceCheckUtils]: 24: Hoare triple {25027#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {25027#true} is VALID [2020-07-11 01:01:16,038 INFO L280 TraceCheckUtils]: 25: Hoare triple {25027#true} ~p6~0 := #t~nondet5; {25027#true} is VALID [2020-07-11 01:01:16,038 INFO L280 TraceCheckUtils]: 26: Hoare triple {25027#true} havoc #t~nondet5; {25027#true} is VALID [2020-07-11 01:01:16,039 INFO L280 TraceCheckUtils]: 27: Hoare triple {25027#true} havoc ~lk6~0; {25027#true} is VALID [2020-07-11 01:01:16,039 INFO L280 TraceCheckUtils]: 28: Hoare triple {25027#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {25027#true} is VALID [2020-07-11 01:01:16,039 INFO L280 TraceCheckUtils]: 29: Hoare triple {25027#true} ~p7~0 := #t~nondet6; {25027#true} is VALID [2020-07-11 01:01:16,039 INFO L280 TraceCheckUtils]: 30: Hoare triple {25027#true} havoc #t~nondet6; {25027#true} is VALID [2020-07-11 01:01:16,039 INFO L280 TraceCheckUtils]: 31: Hoare triple {25027#true} havoc ~lk7~0; {25027#true} is VALID [2020-07-11 01:01:16,039 INFO L280 TraceCheckUtils]: 32: Hoare triple {25027#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {25027#true} is VALID [2020-07-11 01:01:16,040 INFO L280 TraceCheckUtils]: 33: Hoare triple {25027#true} ~p8~0 := #t~nondet7; {25027#true} is VALID [2020-07-11 01:01:16,040 INFO L280 TraceCheckUtils]: 34: Hoare triple {25027#true} havoc #t~nondet7; {25027#true} is VALID [2020-07-11 01:01:16,040 INFO L280 TraceCheckUtils]: 35: Hoare triple {25027#true} havoc ~lk8~0; {25027#true} is VALID [2020-07-11 01:01:16,040 INFO L280 TraceCheckUtils]: 36: Hoare triple {25027#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {25027#true} is VALID [2020-07-11 01:01:16,040 INFO L280 TraceCheckUtils]: 37: Hoare triple {25027#true} ~p9~0 := #t~nondet8; {25027#true} is VALID [2020-07-11 01:01:16,041 INFO L280 TraceCheckUtils]: 38: Hoare triple {25027#true} havoc #t~nondet8; {25027#true} is VALID [2020-07-11 01:01:16,041 INFO L280 TraceCheckUtils]: 39: Hoare triple {25027#true} havoc ~lk9~0; {25027#true} is VALID [2020-07-11 01:01:16,041 INFO L280 TraceCheckUtils]: 40: Hoare triple {25027#true} havoc ~cond~0; {25027#true} is VALID [2020-07-11 01:01:16,041 INFO L280 TraceCheckUtils]: 41: Hoare triple {25027#true} assume !false; {25027#true} is VALID [2020-07-11 01:01:16,041 INFO L280 TraceCheckUtils]: 42: Hoare triple {25027#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {25027#true} is VALID [2020-07-11 01:01:16,042 INFO L280 TraceCheckUtils]: 43: Hoare triple {25027#true} ~cond~0 := #t~nondet9; {25027#true} is VALID [2020-07-11 01:01:16,042 INFO L280 TraceCheckUtils]: 44: Hoare triple {25027#true} havoc #t~nondet9; {25027#true} is VALID [2020-07-11 01:01:16,042 INFO L280 TraceCheckUtils]: 45: Hoare triple {25027#true} assume !(0 == ~cond~0); {25027#true} is VALID [2020-07-11 01:01:16,042 INFO L280 TraceCheckUtils]: 46: Hoare triple {25027#true} ~lk1~0 := 0; {25027#true} is VALID [2020-07-11 01:01:16,042 INFO L280 TraceCheckUtils]: 47: Hoare triple {25027#true} ~lk2~0 := 0; {25027#true} is VALID [2020-07-11 01:01:16,043 INFO L280 TraceCheckUtils]: 48: Hoare triple {25027#true} ~lk3~0 := 0; {25027#true} is VALID [2020-07-11 01:01:16,043 INFO L280 TraceCheckUtils]: 49: Hoare triple {25027#true} ~lk4~0 := 0; {25027#true} is VALID [2020-07-11 01:01:16,043 INFO L280 TraceCheckUtils]: 50: Hoare triple {25027#true} ~lk5~0 := 0; {25027#true} is VALID [2020-07-11 01:01:16,043 INFO L280 TraceCheckUtils]: 51: Hoare triple {25027#true} ~lk6~0 := 0; {25027#true} is VALID [2020-07-11 01:01:16,043 INFO L280 TraceCheckUtils]: 52: Hoare triple {25027#true} ~lk7~0 := 0; {25027#true} is VALID [2020-07-11 01:01:16,043 INFO L280 TraceCheckUtils]: 53: Hoare triple {25027#true} ~lk8~0 := 0; {25027#true} is VALID [2020-07-11 01:01:16,044 INFO L280 TraceCheckUtils]: 54: Hoare triple {25027#true} ~lk9~0 := 0; {25027#true} is VALID [2020-07-11 01:01:16,044 INFO L280 TraceCheckUtils]: 55: Hoare triple {25027#true} assume !(0 != ~p1~0); {25027#true} is VALID [2020-07-11 01:01:16,044 INFO L280 TraceCheckUtils]: 56: Hoare triple {25027#true} assume !(0 != ~p2~0); {25027#true} is VALID [2020-07-11 01:01:16,044 INFO L280 TraceCheckUtils]: 57: Hoare triple {25027#true} assume !(0 != ~p3~0); {25027#true} is VALID [2020-07-11 01:01:16,044 INFO L280 TraceCheckUtils]: 58: Hoare triple {25027#true} assume !(0 != ~p4~0); {25027#true} is VALID [2020-07-11 01:01:16,045 INFO L280 TraceCheckUtils]: 59: Hoare triple {25027#true} assume !(0 != ~p5~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-11 01:01:16,046 INFO L280 TraceCheckUtils]: 60: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p6~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-11 01:01:16,046 INFO L280 TraceCheckUtils]: 61: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p7~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-11 01:01:16,047 INFO L280 TraceCheckUtils]: 62: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p8~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-11 01:01:16,047 INFO L280 TraceCheckUtils]: 63: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p9~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-11 01:01:16,048 INFO L280 TraceCheckUtils]: 64: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p1~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-11 01:01:16,048 INFO L280 TraceCheckUtils]: 65: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p2~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-11 01:01:16,049 INFO L280 TraceCheckUtils]: 66: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p3~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-11 01:01:16,049 INFO L280 TraceCheckUtils]: 67: Hoare triple {25031#(= 0 main_~p5~0)} assume !(0 != ~p4~0); {25031#(= 0 main_~p5~0)} is VALID [2020-07-11 01:01:16,050 INFO L280 TraceCheckUtils]: 68: Hoare triple {25031#(= 0 main_~p5~0)} assume 0 != ~p5~0; {25028#false} is VALID [2020-07-11 01:01:16,050 INFO L280 TraceCheckUtils]: 69: Hoare triple {25028#false} assume 1 != ~lk5~0; {25028#false} is VALID [2020-07-11 01:01:16,050 INFO L280 TraceCheckUtils]: 70: Hoare triple {25028#false} assume !false; {25028#false} is VALID [2020-07-11 01:01:16,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:01:16,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852952387] [2020-07-11 01:01:16,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:01:16,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:01:16,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491908356] [2020-07-11 01:01:16,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-11 01:01:16,054 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:01:16,055 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:01:16,116 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:16,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:01:16,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:01:16,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:01:16,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:01:16,117 INFO L87 Difference]: Start difference. First operand 891 states and 1194 transitions. Second operand 3 states. [2020-07-11 01:01:20,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:20,107 INFO L93 Difference]: Finished difference Result 2543 states and 3436 transitions. [2020-07-11 01:01:20,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:01:20,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-07-11 01:01:20,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:01:20,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:01:20,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-11 01:01:20,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:01:20,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-11 01:01:20,110 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 286 transitions. [2020-07-11 01:01:20,402 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 286 edges. 286 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:20,515 INFO L225 Difference]: With dead ends: 2543 [2020-07-11 01:01:20,515 INFO L226 Difference]: Without dead ends: 1693 [2020-07-11 01:01:20,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:01:20,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2020-07-11 01:01:23,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1691. [2020-07-11 01:01:23,844 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:01:23,844 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1693 states. Second operand 1691 states. [2020-07-11 01:01:23,844 INFO L74 IsIncluded]: Start isIncluded. First operand 1693 states. Second operand 1691 states. [2020-07-11 01:01:23,845 INFO L87 Difference]: Start difference. First operand 1693 states. Second operand 1691 states. [2020-07-11 01:01:23,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:23,962 INFO L93 Difference]: Finished difference Result 1693 states and 2251 transitions. [2020-07-11 01:01:23,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2251 transitions. [2020-07-11 01:01:23,964 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:01:23,964 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:01:23,964 INFO L74 IsIncluded]: Start isIncluded. First operand 1691 states. Second operand 1693 states. [2020-07-11 01:01:23,965 INFO L87 Difference]: Start difference. First operand 1691 states. Second operand 1693 states. [2020-07-11 01:01:24,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:24,088 INFO L93 Difference]: Finished difference Result 1693 states and 2251 transitions. [2020-07-11 01:01:24,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2251 transitions. [2020-07-11 01:01:24,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:01:24,090 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:01:24,090 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:01:24,090 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:01:24,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-07-11 01:01:24,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2250 transitions. [2020-07-11 01:01:24,192 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2250 transitions. Word has length 71 [2020-07-11 01:01:24,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:01:24,192 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2250 transitions. [2020-07-11 01:01:24,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:01:24,193 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 1691 states and 2250 transitions. [2020-07-11 01:01:26,935 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2250 edges. 2250 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:26,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2250 transitions. [2020-07-11 01:01:26,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-07-11 01:01:26,937 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:01:26,937 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] [2020-07-11 01:01:26,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-11 01:01:26,938 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:01:26,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:01:26,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1204002519, now seen corresponding path program 1 times [2020-07-11 01:01:26,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:01:26,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2012937228] [2020-07-11 01:01:26,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:01:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:01:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:01:26,982 INFO L280 TraceCheckUtils]: 0: Hoare triple {36888#true} assume true; {36888#true} is VALID [2020-07-11 01:01:26,983 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {36888#true} {36888#true} #247#return; {36888#true} is VALID [2020-07-11 01:01:26,983 INFO L263 TraceCheckUtils]: 0: Hoare triple {36888#true} call ULTIMATE.init(); {36888#true} is VALID [2020-07-11 01:01:26,983 INFO L280 TraceCheckUtils]: 1: Hoare triple {36888#true} assume true; {36888#true} is VALID [2020-07-11 01:01:26,983 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36888#true} {36888#true} #247#return; {36888#true} is VALID [2020-07-11 01:01:26,983 INFO L263 TraceCheckUtils]: 3: Hoare triple {36888#true} call #t~ret10 := main(); {36888#true} is VALID [2020-07-11 01:01:26,984 INFO L280 TraceCheckUtils]: 4: Hoare triple {36888#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {36888#true} is VALID [2020-07-11 01:01:26,984 INFO L280 TraceCheckUtils]: 5: Hoare triple {36888#true} ~p1~0 := #t~nondet0; {36888#true} is VALID [2020-07-11 01:01:26,984 INFO L280 TraceCheckUtils]: 6: Hoare triple {36888#true} havoc #t~nondet0; {36888#true} is VALID [2020-07-11 01:01:26,984 INFO L280 TraceCheckUtils]: 7: Hoare triple {36888#true} havoc ~lk1~0; {36888#true} is VALID [2020-07-11 01:01:26,984 INFO L280 TraceCheckUtils]: 8: Hoare triple {36888#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {36888#true} is VALID [2020-07-11 01:01:26,984 INFO L280 TraceCheckUtils]: 9: Hoare triple {36888#true} ~p2~0 := #t~nondet1; {36888#true} is VALID [2020-07-11 01:01:26,984 INFO L280 TraceCheckUtils]: 10: Hoare triple {36888#true} havoc #t~nondet1; {36888#true} is VALID [2020-07-11 01:01:26,984 INFO L280 TraceCheckUtils]: 11: Hoare triple {36888#true} havoc ~lk2~0; {36888#true} is VALID [2020-07-11 01:01:26,985 INFO L280 TraceCheckUtils]: 12: Hoare triple {36888#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {36888#true} is VALID [2020-07-11 01:01:26,985 INFO L280 TraceCheckUtils]: 13: Hoare triple {36888#true} ~p3~0 := #t~nondet2; {36888#true} is VALID [2020-07-11 01:01:26,985 INFO L280 TraceCheckUtils]: 14: Hoare triple {36888#true} havoc #t~nondet2; {36888#true} is VALID [2020-07-11 01:01:26,985 INFO L280 TraceCheckUtils]: 15: Hoare triple {36888#true} havoc ~lk3~0; {36888#true} is VALID [2020-07-11 01:01:26,985 INFO L280 TraceCheckUtils]: 16: Hoare triple {36888#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {36888#true} is VALID [2020-07-11 01:01:26,985 INFO L280 TraceCheckUtils]: 17: Hoare triple {36888#true} ~p4~0 := #t~nondet3; {36888#true} is VALID [2020-07-11 01:01:26,985 INFO L280 TraceCheckUtils]: 18: Hoare triple {36888#true} havoc #t~nondet3; {36888#true} is VALID [2020-07-11 01:01:26,986 INFO L280 TraceCheckUtils]: 19: Hoare triple {36888#true} havoc ~lk4~0; {36888#true} is VALID [2020-07-11 01:01:26,986 INFO L280 TraceCheckUtils]: 20: Hoare triple {36888#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {36888#true} is VALID [2020-07-11 01:01:26,986 INFO L280 TraceCheckUtils]: 21: Hoare triple {36888#true} ~p5~0 := #t~nondet4; {36888#true} is VALID [2020-07-11 01:01:26,986 INFO L280 TraceCheckUtils]: 22: Hoare triple {36888#true} havoc #t~nondet4; {36888#true} is VALID [2020-07-11 01:01:26,986 INFO L280 TraceCheckUtils]: 23: Hoare triple {36888#true} havoc ~lk5~0; {36888#true} is VALID [2020-07-11 01:01:26,987 INFO L280 TraceCheckUtils]: 24: Hoare triple {36888#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {36888#true} is VALID [2020-07-11 01:01:26,987 INFO L280 TraceCheckUtils]: 25: Hoare triple {36888#true} ~p6~0 := #t~nondet5; {36888#true} is VALID [2020-07-11 01:01:26,987 INFO L280 TraceCheckUtils]: 26: Hoare triple {36888#true} havoc #t~nondet5; {36888#true} is VALID [2020-07-11 01:01:26,987 INFO L280 TraceCheckUtils]: 27: Hoare triple {36888#true} havoc ~lk6~0; {36888#true} is VALID [2020-07-11 01:01:26,987 INFO L280 TraceCheckUtils]: 28: Hoare triple {36888#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {36888#true} is VALID [2020-07-11 01:01:26,988 INFO L280 TraceCheckUtils]: 29: Hoare triple {36888#true} ~p7~0 := #t~nondet6; {36888#true} is VALID [2020-07-11 01:01:26,988 INFO L280 TraceCheckUtils]: 30: Hoare triple {36888#true} havoc #t~nondet6; {36888#true} is VALID [2020-07-11 01:01:26,988 INFO L280 TraceCheckUtils]: 31: Hoare triple {36888#true} havoc ~lk7~0; {36888#true} is VALID [2020-07-11 01:01:26,988 INFO L280 TraceCheckUtils]: 32: Hoare triple {36888#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {36888#true} is VALID [2020-07-11 01:01:26,988 INFO L280 TraceCheckUtils]: 33: Hoare triple {36888#true} ~p8~0 := #t~nondet7; {36888#true} is VALID [2020-07-11 01:01:26,988 INFO L280 TraceCheckUtils]: 34: Hoare triple {36888#true} havoc #t~nondet7; {36888#true} is VALID [2020-07-11 01:01:26,989 INFO L280 TraceCheckUtils]: 35: Hoare triple {36888#true} havoc ~lk8~0; {36888#true} is VALID [2020-07-11 01:01:26,989 INFO L280 TraceCheckUtils]: 36: Hoare triple {36888#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {36888#true} is VALID [2020-07-11 01:01:26,989 INFO L280 TraceCheckUtils]: 37: Hoare triple {36888#true} ~p9~0 := #t~nondet8; {36888#true} is VALID [2020-07-11 01:01:26,989 INFO L280 TraceCheckUtils]: 38: Hoare triple {36888#true} havoc #t~nondet8; {36888#true} is VALID [2020-07-11 01:01:26,989 INFO L280 TraceCheckUtils]: 39: Hoare triple {36888#true} havoc ~lk9~0; {36888#true} is VALID [2020-07-11 01:01:26,990 INFO L280 TraceCheckUtils]: 40: Hoare triple {36888#true} havoc ~cond~0; {36888#true} is VALID [2020-07-11 01:01:26,990 INFO L280 TraceCheckUtils]: 41: Hoare triple {36888#true} assume !false; {36888#true} is VALID [2020-07-11 01:01:26,990 INFO L280 TraceCheckUtils]: 42: Hoare triple {36888#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {36888#true} is VALID [2020-07-11 01:01:26,990 INFO L280 TraceCheckUtils]: 43: Hoare triple {36888#true} ~cond~0 := #t~nondet9; {36888#true} is VALID [2020-07-11 01:01:26,990 INFO L280 TraceCheckUtils]: 44: Hoare triple {36888#true} havoc #t~nondet9; {36888#true} is VALID [2020-07-11 01:01:26,991 INFO L280 TraceCheckUtils]: 45: Hoare triple {36888#true} assume !(0 == ~cond~0); {36888#true} is VALID [2020-07-11 01:01:26,991 INFO L280 TraceCheckUtils]: 46: Hoare triple {36888#true} ~lk1~0 := 0; {36888#true} is VALID [2020-07-11 01:01:26,991 INFO L280 TraceCheckUtils]: 47: Hoare triple {36888#true} ~lk2~0 := 0; {36888#true} is VALID [2020-07-11 01:01:26,991 INFO L280 TraceCheckUtils]: 48: Hoare triple {36888#true} ~lk3~0 := 0; {36888#true} is VALID [2020-07-11 01:01:26,991 INFO L280 TraceCheckUtils]: 49: Hoare triple {36888#true} ~lk4~0 := 0; {36888#true} is VALID [2020-07-11 01:01:26,992 INFO L280 TraceCheckUtils]: 50: Hoare triple {36888#true} ~lk5~0 := 0; {36888#true} is VALID [2020-07-11 01:01:26,992 INFO L280 TraceCheckUtils]: 51: Hoare triple {36888#true} ~lk6~0 := 0; {36888#true} is VALID [2020-07-11 01:01:26,992 INFO L280 TraceCheckUtils]: 52: Hoare triple {36888#true} ~lk7~0 := 0; {36888#true} is VALID [2020-07-11 01:01:26,992 INFO L280 TraceCheckUtils]: 53: Hoare triple {36888#true} ~lk8~0 := 0; {36888#true} is VALID [2020-07-11 01:01:26,992 INFO L280 TraceCheckUtils]: 54: Hoare triple {36888#true} ~lk9~0 := 0; {36888#true} is VALID [2020-07-11 01:01:26,992 INFO L280 TraceCheckUtils]: 55: Hoare triple {36888#true} assume !(0 != ~p1~0); {36888#true} is VALID [2020-07-11 01:01:26,993 INFO L280 TraceCheckUtils]: 56: Hoare triple {36888#true} assume !(0 != ~p2~0); {36888#true} is VALID [2020-07-11 01:01:26,993 INFO L280 TraceCheckUtils]: 57: Hoare triple {36888#true} assume !(0 != ~p3~0); {36888#true} is VALID [2020-07-11 01:01:26,993 INFO L280 TraceCheckUtils]: 58: Hoare triple {36888#true} assume !(0 != ~p4~0); {36888#true} is VALID [2020-07-11 01:01:26,993 INFO L280 TraceCheckUtils]: 59: Hoare triple {36888#true} assume 0 != ~p5~0; {36888#true} is VALID [2020-07-11 01:01:27,012 INFO L280 TraceCheckUtils]: 60: Hoare triple {36888#true} ~lk5~0 := 1; {36892#(= 1 main_~lk5~0)} is VALID [2020-07-11 01:01:27,016 INFO L280 TraceCheckUtils]: 61: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p6~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-11 01:01:27,018 INFO L280 TraceCheckUtils]: 62: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p7~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-11 01:01:27,022 INFO L280 TraceCheckUtils]: 63: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p8~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-11 01:01:27,023 INFO L280 TraceCheckUtils]: 64: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p9~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-11 01:01:27,023 INFO L280 TraceCheckUtils]: 65: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p1~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-11 01:01:27,024 INFO L280 TraceCheckUtils]: 66: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p2~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-11 01:01:27,024 INFO L280 TraceCheckUtils]: 67: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p3~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-11 01:01:27,025 INFO L280 TraceCheckUtils]: 68: Hoare triple {36892#(= 1 main_~lk5~0)} assume !(0 != ~p4~0); {36892#(= 1 main_~lk5~0)} is VALID [2020-07-11 01:01:27,025 INFO L280 TraceCheckUtils]: 69: Hoare triple {36892#(= 1 main_~lk5~0)} assume 0 != ~p5~0; {36892#(= 1 main_~lk5~0)} is VALID [2020-07-11 01:01:27,026 INFO L280 TraceCheckUtils]: 70: Hoare triple {36892#(= 1 main_~lk5~0)} assume 1 != ~lk5~0; {36889#false} is VALID [2020-07-11 01:01:27,026 INFO L280 TraceCheckUtils]: 71: Hoare triple {36889#false} assume !false; {36889#false} is VALID [2020-07-11 01:01:27,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:01:27,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2012937228] [2020-07-11 01:01:27,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:01:27,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:01:27,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334006470] [2020-07-11 01:01:27,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-11 01:01:27,030 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:01:27,030 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:01:27,095 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:27,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:01:27,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:01:27,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:01:27,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:01:27,097 INFO L87 Difference]: Start difference. First operand 1691 states and 2250 transitions. Second operand 3 states. [2020-07-11 01:01:31,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:31,914 INFO L93 Difference]: Finished difference Result 2047 states and 2732 transitions. [2020-07-11 01:01:31,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:01:31,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-11 01:01:31,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:01:31,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:01:31,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2020-07-11 01:01:31,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:01:31,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2020-07-11 01:01:31,918 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 185 transitions. [2020-07-11 01:01:32,089 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:32,223 INFO L225 Difference]: With dead ends: 2047 [2020-07-11 01:01:32,223 INFO L226 Difference]: Without dead ends: 2045 [2020-07-11 01:01:32,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:01:32,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2020-07-11 01:01:35,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1691. [2020-07-11 01:01:35,859 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:01:35,859 INFO L82 GeneralOperation]: Start isEquivalent. First operand 2045 states. Second operand 1691 states. [2020-07-11 01:01:35,860 INFO L74 IsIncluded]: Start isIncluded. First operand 2045 states. Second operand 1691 states. [2020-07-11 01:01:35,860 INFO L87 Difference]: Start difference. First operand 2045 states. Second operand 1691 states. [2020-07-11 01:01:36,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:36,003 INFO L93 Difference]: Finished difference Result 2045 states and 2715 transitions. [2020-07-11 01:01:36,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2715 transitions. [2020-07-11 01:01:36,005 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:01:36,005 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:01:36,005 INFO L74 IsIncluded]: Start isIncluded. First operand 1691 states. Second operand 2045 states. [2020-07-11 01:01:36,005 INFO L87 Difference]: Start difference. First operand 1691 states. Second operand 2045 states. [2020-07-11 01:01:36,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:36,172 INFO L93 Difference]: Finished difference Result 2045 states and 2715 transitions. [2020-07-11 01:01:36,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2715 transitions. [2020-07-11 01:01:36,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:01:36,174 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:01:36,174 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:01:36,174 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:01:36,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-07-11 01:01:36,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2234 transitions. [2020-07-11 01:01:36,284 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2234 transitions. Word has length 72 [2020-07-11 01:01:36,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:01:36,284 INFO L479 AbstractCegarLoop]: Abstraction has 1691 states and 2234 transitions. [2020-07-11 01:01:36,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:01:36,284 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 1691 states and 2234 transitions. [2020-07-11 01:01:39,026 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2234 edges. 2234 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:39,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2234 transitions. [2020-07-11 01:01:39,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-07-11 01:01:39,029 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:01:39,029 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] [2020-07-11 01:01:39,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-11 01:01:39,030 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:01:39,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:01:39,030 INFO L82 PathProgramCache]: Analyzing trace with hash 94899998, now seen corresponding path program 1 times [2020-07-11 01:01:39,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:01:39,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65862746] [2020-07-11 01:01:39,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:01:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:01:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:01:39,066 INFO L280 TraceCheckUtils]: 0: Hoare triple {48461#true} assume true; {48461#true} is VALID [2020-07-11 01:01:39,066 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {48461#true} {48461#true} #247#return; {48461#true} is VALID [2020-07-11 01:01:39,067 INFO L263 TraceCheckUtils]: 0: Hoare triple {48461#true} call ULTIMATE.init(); {48461#true} is VALID [2020-07-11 01:01:39,067 INFO L280 TraceCheckUtils]: 1: Hoare triple {48461#true} assume true; {48461#true} is VALID [2020-07-11 01:01:39,067 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {48461#true} {48461#true} #247#return; {48461#true} is VALID [2020-07-11 01:01:39,067 INFO L263 TraceCheckUtils]: 3: Hoare triple {48461#true} call #t~ret10 := main(); {48461#true} is VALID [2020-07-11 01:01:39,067 INFO L280 TraceCheckUtils]: 4: Hoare triple {48461#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {48461#true} is VALID [2020-07-11 01:01:39,068 INFO L280 TraceCheckUtils]: 5: Hoare triple {48461#true} ~p1~0 := #t~nondet0; {48461#true} is VALID [2020-07-11 01:01:39,068 INFO L280 TraceCheckUtils]: 6: Hoare triple {48461#true} havoc #t~nondet0; {48461#true} is VALID [2020-07-11 01:01:39,068 INFO L280 TraceCheckUtils]: 7: Hoare triple {48461#true} havoc ~lk1~0; {48461#true} is VALID [2020-07-11 01:01:39,068 INFO L280 TraceCheckUtils]: 8: Hoare triple {48461#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {48461#true} is VALID [2020-07-11 01:01:39,068 INFO L280 TraceCheckUtils]: 9: Hoare triple {48461#true} ~p2~0 := #t~nondet1; {48461#true} is VALID [2020-07-11 01:01:39,068 INFO L280 TraceCheckUtils]: 10: Hoare triple {48461#true} havoc #t~nondet1; {48461#true} is VALID [2020-07-11 01:01:39,069 INFO L280 TraceCheckUtils]: 11: Hoare triple {48461#true} havoc ~lk2~0; {48461#true} is VALID [2020-07-11 01:01:39,069 INFO L280 TraceCheckUtils]: 12: Hoare triple {48461#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {48461#true} is VALID [2020-07-11 01:01:39,069 INFO L280 TraceCheckUtils]: 13: Hoare triple {48461#true} ~p3~0 := #t~nondet2; {48461#true} is VALID [2020-07-11 01:01:39,069 INFO L280 TraceCheckUtils]: 14: Hoare triple {48461#true} havoc #t~nondet2; {48461#true} is VALID [2020-07-11 01:01:39,069 INFO L280 TraceCheckUtils]: 15: Hoare triple {48461#true} havoc ~lk3~0; {48461#true} is VALID [2020-07-11 01:01:39,069 INFO L280 TraceCheckUtils]: 16: Hoare triple {48461#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {48461#true} is VALID [2020-07-11 01:01:39,070 INFO L280 TraceCheckUtils]: 17: Hoare triple {48461#true} ~p4~0 := #t~nondet3; {48461#true} is VALID [2020-07-11 01:01:39,070 INFO L280 TraceCheckUtils]: 18: Hoare triple {48461#true} havoc #t~nondet3; {48461#true} is VALID [2020-07-11 01:01:39,070 INFO L280 TraceCheckUtils]: 19: Hoare triple {48461#true} havoc ~lk4~0; {48461#true} is VALID [2020-07-11 01:01:39,070 INFO L280 TraceCheckUtils]: 20: Hoare triple {48461#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {48461#true} is VALID [2020-07-11 01:01:39,070 INFO L280 TraceCheckUtils]: 21: Hoare triple {48461#true} ~p5~0 := #t~nondet4; {48461#true} is VALID [2020-07-11 01:01:39,071 INFO L280 TraceCheckUtils]: 22: Hoare triple {48461#true} havoc #t~nondet4; {48461#true} is VALID [2020-07-11 01:01:39,071 INFO L280 TraceCheckUtils]: 23: Hoare triple {48461#true} havoc ~lk5~0; {48461#true} is VALID [2020-07-11 01:01:39,071 INFO L280 TraceCheckUtils]: 24: Hoare triple {48461#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {48461#true} is VALID [2020-07-11 01:01:39,071 INFO L280 TraceCheckUtils]: 25: Hoare triple {48461#true} ~p6~0 := #t~nondet5; {48461#true} is VALID [2020-07-11 01:01:39,071 INFO L280 TraceCheckUtils]: 26: Hoare triple {48461#true} havoc #t~nondet5; {48461#true} is VALID [2020-07-11 01:01:39,071 INFO L280 TraceCheckUtils]: 27: Hoare triple {48461#true} havoc ~lk6~0; {48461#true} is VALID [2020-07-11 01:01:39,072 INFO L280 TraceCheckUtils]: 28: Hoare triple {48461#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {48461#true} is VALID [2020-07-11 01:01:39,072 INFO L280 TraceCheckUtils]: 29: Hoare triple {48461#true} ~p7~0 := #t~nondet6; {48461#true} is VALID [2020-07-11 01:01:39,072 INFO L280 TraceCheckUtils]: 30: Hoare triple {48461#true} havoc #t~nondet6; {48461#true} is VALID [2020-07-11 01:01:39,072 INFO L280 TraceCheckUtils]: 31: Hoare triple {48461#true} havoc ~lk7~0; {48461#true} is VALID [2020-07-11 01:01:39,072 INFO L280 TraceCheckUtils]: 32: Hoare triple {48461#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {48461#true} is VALID [2020-07-11 01:01:39,072 INFO L280 TraceCheckUtils]: 33: Hoare triple {48461#true} ~p8~0 := #t~nondet7; {48461#true} is VALID [2020-07-11 01:01:39,073 INFO L280 TraceCheckUtils]: 34: Hoare triple {48461#true} havoc #t~nondet7; {48461#true} is VALID [2020-07-11 01:01:39,073 INFO L280 TraceCheckUtils]: 35: Hoare triple {48461#true} havoc ~lk8~0; {48461#true} is VALID [2020-07-11 01:01:39,073 INFO L280 TraceCheckUtils]: 36: Hoare triple {48461#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {48461#true} is VALID [2020-07-11 01:01:39,073 INFO L280 TraceCheckUtils]: 37: Hoare triple {48461#true} ~p9~0 := #t~nondet8; {48461#true} is VALID [2020-07-11 01:01:39,073 INFO L280 TraceCheckUtils]: 38: Hoare triple {48461#true} havoc #t~nondet8; {48461#true} is VALID [2020-07-11 01:01:39,073 INFO L280 TraceCheckUtils]: 39: Hoare triple {48461#true} havoc ~lk9~0; {48461#true} is VALID [2020-07-11 01:01:39,074 INFO L280 TraceCheckUtils]: 40: Hoare triple {48461#true} havoc ~cond~0; {48461#true} is VALID [2020-07-11 01:01:39,074 INFO L280 TraceCheckUtils]: 41: Hoare triple {48461#true} assume !false; {48461#true} is VALID [2020-07-11 01:01:39,074 INFO L280 TraceCheckUtils]: 42: Hoare triple {48461#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {48461#true} is VALID [2020-07-11 01:01:39,074 INFO L280 TraceCheckUtils]: 43: Hoare triple {48461#true} ~cond~0 := #t~nondet9; {48461#true} is VALID [2020-07-11 01:01:39,074 INFO L280 TraceCheckUtils]: 44: Hoare triple {48461#true} havoc #t~nondet9; {48461#true} is VALID [2020-07-11 01:01:39,074 INFO L280 TraceCheckUtils]: 45: Hoare triple {48461#true} assume !(0 == ~cond~0); {48461#true} is VALID [2020-07-11 01:01:39,075 INFO L280 TraceCheckUtils]: 46: Hoare triple {48461#true} ~lk1~0 := 0; {48461#true} is VALID [2020-07-11 01:01:39,075 INFO L280 TraceCheckUtils]: 47: Hoare triple {48461#true} ~lk2~0 := 0; {48461#true} is VALID [2020-07-11 01:01:39,075 INFO L280 TraceCheckUtils]: 48: Hoare triple {48461#true} ~lk3~0 := 0; {48461#true} is VALID [2020-07-11 01:01:39,075 INFO L280 TraceCheckUtils]: 49: Hoare triple {48461#true} ~lk4~0 := 0; {48461#true} is VALID [2020-07-11 01:01:39,081 INFO L280 TraceCheckUtils]: 50: Hoare triple {48461#true} ~lk5~0 := 0; {48461#true} is VALID [2020-07-11 01:01:39,081 INFO L280 TraceCheckUtils]: 51: Hoare triple {48461#true} ~lk6~0 := 0; {48461#true} is VALID [2020-07-11 01:01:39,082 INFO L280 TraceCheckUtils]: 52: Hoare triple {48461#true} ~lk7~0 := 0; {48461#true} is VALID [2020-07-11 01:01:39,082 INFO L280 TraceCheckUtils]: 53: Hoare triple {48461#true} ~lk8~0 := 0; {48461#true} is VALID [2020-07-11 01:01:39,082 INFO L280 TraceCheckUtils]: 54: Hoare triple {48461#true} ~lk9~0 := 0; {48461#true} is VALID [2020-07-11 01:01:39,082 INFO L280 TraceCheckUtils]: 55: Hoare triple {48461#true} assume !(0 != ~p1~0); {48461#true} is VALID [2020-07-11 01:01:39,082 INFO L280 TraceCheckUtils]: 56: Hoare triple {48461#true} assume !(0 != ~p2~0); {48461#true} is VALID [2020-07-11 01:01:39,083 INFO L280 TraceCheckUtils]: 57: Hoare triple {48461#true} assume !(0 != ~p3~0); {48461#true} is VALID [2020-07-11 01:01:39,083 INFO L280 TraceCheckUtils]: 58: Hoare triple {48461#true} assume !(0 != ~p4~0); {48461#true} is VALID [2020-07-11 01:01:39,083 INFO L280 TraceCheckUtils]: 59: Hoare triple {48461#true} assume !(0 != ~p5~0); {48461#true} is VALID [2020-07-11 01:01:39,086 INFO L280 TraceCheckUtils]: 60: Hoare triple {48461#true} assume !(0 != ~p6~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-11 01:01:39,086 INFO L280 TraceCheckUtils]: 61: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p7~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-11 01:01:39,087 INFO L280 TraceCheckUtils]: 62: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p8~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-11 01:01:39,089 INFO L280 TraceCheckUtils]: 63: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p9~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-11 01:01:39,089 INFO L280 TraceCheckUtils]: 64: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p1~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-11 01:01:39,090 INFO L280 TraceCheckUtils]: 65: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p2~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-11 01:01:39,090 INFO L280 TraceCheckUtils]: 66: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p3~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-11 01:01:39,090 INFO L280 TraceCheckUtils]: 67: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p4~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-11 01:01:39,091 INFO L280 TraceCheckUtils]: 68: Hoare triple {48465#(= 0 main_~p6~0)} assume !(0 != ~p5~0); {48465#(= 0 main_~p6~0)} is VALID [2020-07-11 01:01:39,091 INFO L280 TraceCheckUtils]: 69: Hoare triple {48465#(= 0 main_~p6~0)} assume 0 != ~p6~0; {48462#false} is VALID [2020-07-11 01:01:39,092 INFO L280 TraceCheckUtils]: 70: Hoare triple {48462#false} assume 1 != ~lk6~0; {48462#false} is VALID [2020-07-11 01:01:39,092 INFO L280 TraceCheckUtils]: 71: Hoare triple {48462#false} assume !false; {48462#false} is VALID [2020-07-11 01:01:39,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:01:39,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65862746] [2020-07-11 01:01:39,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:01:39,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:01:39,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327466308] [2020-07-11 01:01:39,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-11 01:01:39,095 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:01:39,096 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:01:39,157 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:39,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:01:39,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:01:39,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:01:39,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:01:39,158 INFO L87 Difference]: Start difference. First operand 1691 states and 2234 transitions. Second operand 3 states. [2020-07-11 01:01:48,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:48,205 INFO L93 Difference]: Finished difference Result 4895 states and 6492 transitions. [2020-07-11 01:01:48,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:01:48,205 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-07-11 01:01:48,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:01:48,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:01:48,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2020-07-11 01:01:48,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:01:48,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2020-07-11 01:01:48,217 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 283 transitions. [2020-07-11 01:01:48,470 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 283 edges. 283 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:01:48,902 INFO L225 Difference]: With dead ends: 4895 [2020-07-11 01:01:48,902 INFO L226 Difference]: Without dead ends: 3245 [2020-07-11 01:01:48,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:01:48,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2020-07-11 01:01:56,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3243. [2020-07-11 01:01:56,688 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:01:56,688 INFO L82 GeneralOperation]: Start isEquivalent. First operand 3245 states. Second operand 3243 states. [2020-07-11 01:01:56,688 INFO L74 IsIncluded]: Start isIncluded. First operand 3245 states. Second operand 3243 states. [2020-07-11 01:01:56,689 INFO L87 Difference]: Start difference. First operand 3245 states. Second operand 3243 states. [2020-07-11 01:01:57,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:57,052 INFO L93 Difference]: Finished difference Result 3245 states and 4235 transitions. [2020-07-11 01:01:57,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4235 transitions. [2020-07-11 01:01:57,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:01:57,056 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:01:57,056 INFO L74 IsIncluded]: Start isIncluded. First operand 3243 states. Second operand 3245 states. [2020-07-11 01:01:57,056 INFO L87 Difference]: Start difference. First operand 3243 states. Second operand 3245 states. [2020-07-11 01:01:57,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:01:57,435 INFO L93 Difference]: Finished difference Result 3245 states and 4235 transitions. [2020-07-11 01:01:57,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4235 transitions. [2020-07-11 01:01:57,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:01:57,438 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:01:57,439 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:01:57,439 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:01:57,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-07-11 01:01:57,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4234 transitions. [2020-07-11 01:01:57,996 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4234 transitions. Word has length 72 [2020-07-11 01:01:57,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:01:57,996 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 4234 transitions. [2020-07-11 01:01:57,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:01:57,996 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3243 states and 4234 transitions. [2020-07-11 01:02:03,499 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4234 edges. 4234 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:02:03,499 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4234 transitions. [2020-07-11 01:02:03,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-11 01:02:03,502 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:02:03,502 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] [2020-07-11 01:02:03,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-11 01:02:03,503 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:02:03,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:02:03,503 INFO L82 PathProgramCache]: Analyzing trace with hash 2090581278, now seen corresponding path program 1 times [2020-07-11 01:02:03,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:02:03,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212383002] [2020-07-11 01:02:03,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:02:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:02:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:02:03,540 INFO L280 TraceCheckUtils]: 0: Hoare triple {71234#true} assume true; {71234#true} is VALID [2020-07-11 01:02:03,540 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {71234#true} {71234#true} #247#return; {71234#true} is VALID [2020-07-11 01:02:03,540 INFO L263 TraceCheckUtils]: 0: Hoare triple {71234#true} call ULTIMATE.init(); {71234#true} is VALID [2020-07-11 01:02:03,540 INFO L280 TraceCheckUtils]: 1: Hoare triple {71234#true} assume true; {71234#true} is VALID [2020-07-11 01:02:03,541 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {71234#true} {71234#true} #247#return; {71234#true} is VALID [2020-07-11 01:02:03,541 INFO L263 TraceCheckUtils]: 3: Hoare triple {71234#true} call #t~ret10 := main(); {71234#true} is VALID [2020-07-11 01:02:03,541 INFO L280 TraceCheckUtils]: 4: Hoare triple {71234#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {71234#true} is VALID [2020-07-11 01:02:03,541 INFO L280 TraceCheckUtils]: 5: Hoare triple {71234#true} ~p1~0 := #t~nondet0; {71234#true} is VALID [2020-07-11 01:02:03,541 INFO L280 TraceCheckUtils]: 6: Hoare triple {71234#true} havoc #t~nondet0; {71234#true} is VALID [2020-07-11 01:02:03,541 INFO L280 TraceCheckUtils]: 7: Hoare triple {71234#true} havoc ~lk1~0; {71234#true} is VALID [2020-07-11 01:02:03,542 INFO L280 TraceCheckUtils]: 8: Hoare triple {71234#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {71234#true} is VALID [2020-07-11 01:02:03,542 INFO L280 TraceCheckUtils]: 9: Hoare triple {71234#true} ~p2~0 := #t~nondet1; {71234#true} is VALID [2020-07-11 01:02:03,542 INFO L280 TraceCheckUtils]: 10: Hoare triple {71234#true} havoc #t~nondet1; {71234#true} is VALID [2020-07-11 01:02:03,542 INFO L280 TraceCheckUtils]: 11: Hoare triple {71234#true} havoc ~lk2~0; {71234#true} is VALID [2020-07-11 01:02:03,542 INFO L280 TraceCheckUtils]: 12: Hoare triple {71234#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {71234#true} is VALID [2020-07-11 01:02:03,542 INFO L280 TraceCheckUtils]: 13: Hoare triple {71234#true} ~p3~0 := #t~nondet2; {71234#true} is VALID [2020-07-11 01:02:03,543 INFO L280 TraceCheckUtils]: 14: Hoare triple {71234#true} havoc #t~nondet2; {71234#true} is VALID [2020-07-11 01:02:03,543 INFO L280 TraceCheckUtils]: 15: Hoare triple {71234#true} havoc ~lk3~0; {71234#true} is VALID [2020-07-11 01:02:03,543 INFO L280 TraceCheckUtils]: 16: Hoare triple {71234#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {71234#true} is VALID [2020-07-11 01:02:03,543 INFO L280 TraceCheckUtils]: 17: Hoare triple {71234#true} ~p4~0 := #t~nondet3; {71234#true} is VALID [2020-07-11 01:02:03,543 INFO L280 TraceCheckUtils]: 18: Hoare triple {71234#true} havoc #t~nondet3; {71234#true} is VALID [2020-07-11 01:02:03,543 INFO L280 TraceCheckUtils]: 19: Hoare triple {71234#true} havoc ~lk4~0; {71234#true} is VALID [2020-07-11 01:02:03,544 INFO L280 TraceCheckUtils]: 20: Hoare triple {71234#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {71234#true} is VALID [2020-07-11 01:02:03,544 INFO L280 TraceCheckUtils]: 21: Hoare triple {71234#true} ~p5~0 := #t~nondet4; {71234#true} is VALID [2020-07-11 01:02:03,544 INFO L280 TraceCheckUtils]: 22: Hoare triple {71234#true} havoc #t~nondet4; {71234#true} is VALID [2020-07-11 01:02:03,544 INFO L280 TraceCheckUtils]: 23: Hoare triple {71234#true} havoc ~lk5~0; {71234#true} is VALID [2020-07-11 01:02:03,544 INFO L280 TraceCheckUtils]: 24: Hoare triple {71234#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {71234#true} is VALID [2020-07-11 01:02:03,544 INFO L280 TraceCheckUtils]: 25: Hoare triple {71234#true} ~p6~0 := #t~nondet5; {71234#true} is VALID [2020-07-11 01:02:03,545 INFO L280 TraceCheckUtils]: 26: Hoare triple {71234#true} havoc #t~nondet5; {71234#true} is VALID [2020-07-11 01:02:03,545 INFO L280 TraceCheckUtils]: 27: Hoare triple {71234#true} havoc ~lk6~0; {71234#true} is VALID [2020-07-11 01:02:03,545 INFO L280 TraceCheckUtils]: 28: Hoare triple {71234#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {71234#true} is VALID [2020-07-11 01:02:03,545 INFO L280 TraceCheckUtils]: 29: Hoare triple {71234#true} ~p7~0 := #t~nondet6; {71234#true} is VALID [2020-07-11 01:02:03,545 INFO L280 TraceCheckUtils]: 30: Hoare triple {71234#true} havoc #t~nondet6; {71234#true} is VALID [2020-07-11 01:02:03,545 INFO L280 TraceCheckUtils]: 31: Hoare triple {71234#true} havoc ~lk7~0; {71234#true} is VALID [2020-07-11 01:02:03,546 INFO L280 TraceCheckUtils]: 32: Hoare triple {71234#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {71234#true} is VALID [2020-07-11 01:02:03,546 INFO L280 TraceCheckUtils]: 33: Hoare triple {71234#true} ~p8~0 := #t~nondet7; {71234#true} is VALID [2020-07-11 01:02:03,546 INFO L280 TraceCheckUtils]: 34: Hoare triple {71234#true} havoc #t~nondet7; {71234#true} is VALID [2020-07-11 01:02:03,546 INFO L280 TraceCheckUtils]: 35: Hoare triple {71234#true} havoc ~lk8~0; {71234#true} is VALID [2020-07-11 01:02:03,546 INFO L280 TraceCheckUtils]: 36: Hoare triple {71234#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {71234#true} is VALID [2020-07-11 01:02:03,546 INFO L280 TraceCheckUtils]: 37: Hoare triple {71234#true} ~p9~0 := #t~nondet8; {71234#true} is VALID [2020-07-11 01:02:03,547 INFO L280 TraceCheckUtils]: 38: Hoare triple {71234#true} havoc #t~nondet8; {71234#true} is VALID [2020-07-11 01:02:03,547 INFO L280 TraceCheckUtils]: 39: Hoare triple {71234#true} havoc ~lk9~0; {71234#true} is VALID [2020-07-11 01:02:03,547 INFO L280 TraceCheckUtils]: 40: Hoare triple {71234#true} havoc ~cond~0; {71234#true} is VALID [2020-07-11 01:02:03,547 INFO L280 TraceCheckUtils]: 41: Hoare triple {71234#true} assume !false; {71234#true} is VALID [2020-07-11 01:02:03,547 INFO L280 TraceCheckUtils]: 42: Hoare triple {71234#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {71234#true} is VALID [2020-07-11 01:02:03,548 INFO L280 TraceCheckUtils]: 43: Hoare triple {71234#true} ~cond~0 := #t~nondet9; {71234#true} is VALID [2020-07-11 01:02:03,548 INFO L280 TraceCheckUtils]: 44: Hoare triple {71234#true} havoc #t~nondet9; {71234#true} is VALID [2020-07-11 01:02:03,548 INFO L280 TraceCheckUtils]: 45: Hoare triple {71234#true} assume !(0 == ~cond~0); {71234#true} is VALID [2020-07-11 01:02:03,548 INFO L280 TraceCheckUtils]: 46: Hoare triple {71234#true} ~lk1~0 := 0; {71234#true} is VALID [2020-07-11 01:02:03,548 INFO L280 TraceCheckUtils]: 47: Hoare triple {71234#true} ~lk2~0 := 0; {71234#true} is VALID [2020-07-11 01:02:03,548 INFO L280 TraceCheckUtils]: 48: Hoare triple {71234#true} ~lk3~0 := 0; {71234#true} is VALID [2020-07-11 01:02:03,549 INFO L280 TraceCheckUtils]: 49: Hoare triple {71234#true} ~lk4~0 := 0; {71234#true} is VALID [2020-07-11 01:02:03,549 INFO L280 TraceCheckUtils]: 50: Hoare triple {71234#true} ~lk5~0 := 0; {71234#true} is VALID [2020-07-11 01:02:03,549 INFO L280 TraceCheckUtils]: 51: Hoare triple {71234#true} ~lk6~0 := 0; {71234#true} is VALID [2020-07-11 01:02:03,549 INFO L280 TraceCheckUtils]: 52: Hoare triple {71234#true} ~lk7~0 := 0; {71234#true} is VALID [2020-07-11 01:02:03,549 INFO L280 TraceCheckUtils]: 53: Hoare triple {71234#true} ~lk8~0 := 0; {71234#true} is VALID [2020-07-11 01:02:03,549 INFO L280 TraceCheckUtils]: 54: Hoare triple {71234#true} ~lk9~0 := 0; {71234#true} is VALID [2020-07-11 01:02:03,550 INFO L280 TraceCheckUtils]: 55: Hoare triple {71234#true} assume !(0 != ~p1~0); {71234#true} is VALID [2020-07-11 01:02:03,550 INFO L280 TraceCheckUtils]: 56: Hoare triple {71234#true} assume !(0 != ~p2~0); {71234#true} is VALID [2020-07-11 01:02:03,550 INFO L280 TraceCheckUtils]: 57: Hoare triple {71234#true} assume !(0 != ~p3~0); {71234#true} is VALID [2020-07-11 01:02:03,550 INFO L280 TraceCheckUtils]: 58: Hoare triple {71234#true} assume !(0 != ~p4~0); {71234#true} is VALID [2020-07-11 01:02:03,550 INFO L280 TraceCheckUtils]: 59: Hoare triple {71234#true} assume !(0 != ~p5~0); {71234#true} is VALID [2020-07-11 01:02:03,550 INFO L280 TraceCheckUtils]: 60: Hoare triple {71234#true} assume 0 != ~p6~0; {71234#true} is VALID [2020-07-11 01:02:03,551 INFO L280 TraceCheckUtils]: 61: Hoare triple {71234#true} ~lk6~0 := 1; {71238#(= 1 main_~lk6~0)} is VALID [2020-07-11 01:02:03,551 INFO L280 TraceCheckUtils]: 62: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p7~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-11 01:02:03,552 INFO L280 TraceCheckUtils]: 63: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p8~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-11 01:02:03,552 INFO L280 TraceCheckUtils]: 64: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p9~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-11 01:02:03,552 INFO L280 TraceCheckUtils]: 65: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p1~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-11 01:02:03,553 INFO L280 TraceCheckUtils]: 66: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p2~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-11 01:02:03,553 INFO L280 TraceCheckUtils]: 67: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p3~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-11 01:02:03,553 INFO L280 TraceCheckUtils]: 68: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p4~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-11 01:02:03,554 INFO L280 TraceCheckUtils]: 69: Hoare triple {71238#(= 1 main_~lk6~0)} assume !(0 != ~p5~0); {71238#(= 1 main_~lk6~0)} is VALID [2020-07-11 01:02:03,554 INFO L280 TraceCheckUtils]: 70: Hoare triple {71238#(= 1 main_~lk6~0)} assume 0 != ~p6~0; {71238#(= 1 main_~lk6~0)} is VALID [2020-07-11 01:02:03,557 INFO L280 TraceCheckUtils]: 71: Hoare triple {71238#(= 1 main_~lk6~0)} assume 1 != ~lk6~0; {71235#false} is VALID [2020-07-11 01:02:03,557 INFO L280 TraceCheckUtils]: 72: Hoare triple {71235#false} assume !false; {71235#false} is VALID [2020-07-11 01:02:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:02:03,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212383002] [2020-07-11 01:02:03,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:02:03,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:02:03,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77427000] [2020-07-11 01:02:03,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-11 01:02:03,561 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:02:03,562 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:02:03,632 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:02:03,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:02:03,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:02:03,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:02:03,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:02:03,634 INFO L87 Difference]: Start difference. First operand 3243 states and 4234 transitions. Second operand 3 states. [2020-07-11 01:02:14,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:02:14,510 INFO L93 Difference]: Finished difference Result 3887 states and 5068 transitions. [2020-07-11 01:02:14,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:02:14,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-11 01:02:14,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:02:14,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:02:14,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2020-07-11 01:02:14,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:02:14,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2020-07-11 01:02:14,513 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 181 transitions. [2020-07-11 01:02:14,674 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 181 edges. 181 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:02:15,145 INFO L225 Difference]: With dead ends: 3887 [2020-07-11 01:02:15,145 INFO L226 Difference]: Without dead ends: 3885 [2020-07-11 01:02:15,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:02:15,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2020-07-11 01:02:23,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3243. [2020-07-11 01:02:23,365 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:02:23,365 INFO L82 GeneralOperation]: Start isEquivalent. First operand 3885 states. Second operand 3243 states. [2020-07-11 01:02:23,365 INFO L74 IsIncluded]: Start isIncluded. First operand 3885 states. Second operand 3243 states. [2020-07-11 01:02:23,365 INFO L87 Difference]: Start difference. First operand 3885 states. Second operand 3243 states. [2020-07-11 01:02:23,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:02:23,922 INFO L93 Difference]: Finished difference Result 3885 states and 5035 transitions. [2020-07-11 01:02:23,922 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5035 transitions. [2020-07-11 01:02:23,927 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:02:23,927 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:02:23,927 INFO L74 IsIncluded]: Start isIncluded. First operand 3243 states. Second operand 3885 states. [2020-07-11 01:02:23,927 INFO L87 Difference]: Start difference. First operand 3243 states. Second operand 3885 states. [2020-07-11 01:02:24,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:02:24,551 INFO L93 Difference]: Finished difference Result 3885 states and 5035 transitions. [2020-07-11 01:02:24,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5035 transitions. [2020-07-11 01:02:24,555 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:02:24,555 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:02:24,555 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:02:24,555 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:02:24,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3243 states. [2020-07-11 01:02:25,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4202 transitions. [2020-07-11 01:02:25,021 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4202 transitions. Word has length 73 [2020-07-11 01:02:25,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:02:25,021 INFO L479 AbstractCegarLoop]: Abstraction has 3243 states and 4202 transitions. [2020-07-11 01:02:25,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:02:25,021 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3243 states and 4202 transitions. [2020-07-11 01:02:30,556 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4202 edges. 4202 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:02:30,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4202 transitions. [2020-07-11 01:02:30,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-11 01:02:30,558 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:02:30,559 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] [2020-07-11 01:02:30,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-11 01:02:30,559 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:02:30,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:02:30,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1352821224, now seen corresponding path program 1 times [2020-07-11 01:02:30,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:02:30,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924728956] [2020-07-11 01:02:30,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:02:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:02:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:02:30,590 INFO L280 TraceCheckUtils]: 0: Hoare triple {93271#true} assume true; {93271#true} is VALID [2020-07-11 01:02:30,590 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {93271#true} {93271#true} #247#return; {93271#true} is VALID [2020-07-11 01:02:30,591 INFO L263 TraceCheckUtils]: 0: Hoare triple {93271#true} call ULTIMATE.init(); {93271#true} is VALID [2020-07-11 01:02:30,591 INFO L280 TraceCheckUtils]: 1: Hoare triple {93271#true} assume true; {93271#true} is VALID [2020-07-11 01:02:30,591 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {93271#true} {93271#true} #247#return; {93271#true} is VALID [2020-07-11 01:02:30,591 INFO L263 TraceCheckUtils]: 3: Hoare triple {93271#true} call #t~ret10 := main(); {93271#true} is VALID [2020-07-11 01:02:30,591 INFO L280 TraceCheckUtils]: 4: Hoare triple {93271#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {93271#true} is VALID [2020-07-11 01:02:30,592 INFO L280 TraceCheckUtils]: 5: Hoare triple {93271#true} ~p1~0 := #t~nondet0; {93271#true} is VALID [2020-07-11 01:02:30,592 INFO L280 TraceCheckUtils]: 6: Hoare triple {93271#true} havoc #t~nondet0; {93271#true} is VALID [2020-07-11 01:02:30,592 INFO L280 TraceCheckUtils]: 7: Hoare triple {93271#true} havoc ~lk1~0; {93271#true} is VALID [2020-07-11 01:02:30,592 INFO L280 TraceCheckUtils]: 8: Hoare triple {93271#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {93271#true} is VALID [2020-07-11 01:02:30,592 INFO L280 TraceCheckUtils]: 9: Hoare triple {93271#true} ~p2~0 := #t~nondet1; {93271#true} is VALID [2020-07-11 01:02:30,592 INFO L280 TraceCheckUtils]: 10: Hoare triple {93271#true} havoc #t~nondet1; {93271#true} is VALID [2020-07-11 01:02:30,593 INFO L280 TraceCheckUtils]: 11: Hoare triple {93271#true} havoc ~lk2~0; {93271#true} is VALID [2020-07-11 01:02:30,593 INFO L280 TraceCheckUtils]: 12: Hoare triple {93271#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {93271#true} is VALID [2020-07-11 01:02:30,593 INFO L280 TraceCheckUtils]: 13: Hoare triple {93271#true} ~p3~0 := #t~nondet2; {93271#true} is VALID [2020-07-11 01:02:30,593 INFO L280 TraceCheckUtils]: 14: Hoare triple {93271#true} havoc #t~nondet2; {93271#true} is VALID [2020-07-11 01:02:30,593 INFO L280 TraceCheckUtils]: 15: Hoare triple {93271#true} havoc ~lk3~0; {93271#true} is VALID [2020-07-11 01:02:30,594 INFO L280 TraceCheckUtils]: 16: Hoare triple {93271#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {93271#true} is VALID [2020-07-11 01:02:30,594 INFO L280 TraceCheckUtils]: 17: Hoare triple {93271#true} ~p4~0 := #t~nondet3; {93271#true} is VALID [2020-07-11 01:02:30,594 INFO L280 TraceCheckUtils]: 18: Hoare triple {93271#true} havoc #t~nondet3; {93271#true} is VALID [2020-07-11 01:02:30,594 INFO L280 TraceCheckUtils]: 19: Hoare triple {93271#true} havoc ~lk4~0; {93271#true} is VALID [2020-07-11 01:02:30,594 INFO L280 TraceCheckUtils]: 20: Hoare triple {93271#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {93271#true} is VALID [2020-07-11 01:02:30,594 INFO L280 TraceCheckUtils]: 21: Hoare triple {93271#true} ~p5~0 := #t~nondet4; {93271#true} is VALID [2020-07-11 01:02:30,595 INFO L280 TraceCheckUtils]: 22: Hoare triple {93271#true} havoc #t~nondet4; {93271#true} is VALID [2020-07-11 01:02:30,595 INFO L280 TraceCheckUtils]: 23: Hoare triple {93271#true} havoc ~lk5~0; {93271#true} is VALID [2020-07-11 01:02:30,595 INFO L280 TraceCheckUtils]: 24: Hoare triple {93271#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {93271#true} is VALID [2020-07-11 01:02:30,595 INFO L280 TraceCheckUtils]: 25: Hoare triple {93271#true} ~p6~0 := #t~nondet5; {93271#true} is VALID [2020-07-11 01:02:30,595 INFO L280 TraceCheckUtils]: 26: Hoare triple {93271#true} havoc #t~nondet5; {93271#true} is VALID [2020-07-11 01:02:30,596 INFO L280 TraceCheckUtils]: 27: Hoare triple {93271#true} havoc ~lk6~0; {93271#true} is VALID [2020-07-11 01:02:30,596 INFO L280 TraceCheckUtils]: 28: Hoare triple {93271#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {93271#true} is VALID [2020-07-11 01:02:30,596 INFO L280 TraceCheckUtils]: 29: Hoare triple {93271#true} ~p7~0 := #t~nondet6; {93271#true} is VALID [2020-07-11 01:02:30,596 INFO L280 TraceCheckUtils]: 30: Hoare triple {93271#true} havoc #t~nondet6; {93271#true} is VALID [2020-07-11 01:02:30,596 INFO L280 TraceCheckUtils]: 31: Hoare triple {93271#true} havoc ~lk7~0; {93271#true} is VALID [2020-07-11 01:02:30,596 INFO L280 TraceCheckUtils]: 32: Hoare triple {93271#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {93271#true} is VALID [2020-07-11 01:02:30,597 INFO L280 TraceCheckUtils]: 33: Hoare triple {93271#true} ~p8~0 := #t~nondet7; {93271#true} is VALID [2020-07-11 01:02:30,597 INFO L280 TraceCheckUtils]: 34: Hoare triple {93271#true} havoc #t~nondet7; {93271#true} is VALID [2020-07-11 01:02:30,597 INFO L280 TraceCheckUtils]: 35: Hoare triple {93271#true} havoc ~lk8~0; {93271#true} is VALID [2020-07-11 01:02:30,597 INFO L280 TraceCheckUtils]: 36: Hoare triple {93271#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {93271#true} is VALID [2020-07-11 01:02:30,597 INFO L280 TraceCheckUtils]: 37: Hoare triple {93271#true} ~p9~0 := #t~nondet8; {93271#true} is VALID [2020-07-11 01:02:30,598 INFO L280 TraceCheckUtils]: 38: Hoare triple {93271#true} havoc #t~nondet8; {93271#true} is VALID [2020-07-11 01:02:30,598 INFO L280 TraceCheckUtils]: 39: Hoare triple {93271#true} havoc ~lk9~0; {93271#true} is VALID [2020-07-11 01:02:30,598 INFO L280 TraceCheckUtils]: 40: Hoare triple {93271#true} havoc ~cond~0; {93271#true} is VALID [2020-07-11 01:02:30,598 INFO L280 TraceCheckUtils]: 41: Hoare triple {93271#true} assume !false; {93271#true} is VALID [2020-07-11 01:02:30,598 INFO L280 TraceCheckUtils]: 42: Hoare triple {93271#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {93271#true} is VALID [2020-07-11 01:02:30,598 INFO L280 TraceCheckUtils]: 43: Hoare triple {93271#true} ~cond~0 := #t~nondet9; {93271#true} is VALID [2020-07-11 01:02:30,599 INFO L280 TraceCheckUtils]: 44: Hoare triple {93271#true} havoc #t~nondet9; {93271#true} is VALID [2020-07-11 01:02:30,599 INFO L280 TraceCheckUtils]: 45: Hoare triple {93271#true} assume !(0 == ~cond~0); {93271#true} is VALID [2020-07-11 01:02:30,599 INFO L280 TraceCheckUtils]: 46: Hoare triple {93271#true} ~lk1~0 := 0; {93271#true} is VALID [2020-07-11 01:02:30,599 INFO L280 TraceCheckUtils]: 47: Hoare triple {93271#true} ~lk2~0 := 0; {93271#true} is VALID [2020-07-11 01:02:30,599 INFO L280 TraceCheckUtils]: 48: Hoare triple {93271#true} ~lk3~0 := 0; {93271#true} is VALID [2020-07-11 01:02:30,600 INFO L280 TraceCheckUtils]: 49: Hoare triple {93271#true} ~lk4~0 := 0; {93271#true} is VALID [2020-07-11 01:02:30,600 INFO L280 TraceCheckUtils]: 50: Hoare triple {93271#true} ~lk5~0 := 0; {93271#true} is VALID [2020-07-11 01:02:30,600 INFO L280 TraceCheckUtils]: 51: Hoare triple {93271#true} ~lk6~0 := 0; {93271#true} is VALID [2020-07-11 01:02:30,600 INFO L280 TraceCheckUtils]: 52: Hoare triple {93271#true} ~lk7~0 := 0; {93271#true} is VALID [2020-07-11 01:02:30,600 INFO L280 TraceCheckUtils]: 53: Hoare triple {93271#true} ~lk8~0 := 0; {93271#true} is VALID [2020-07-11 01:02:30,600 INFO L280 TraceCheckUtils]: 54: Hoare triple {93271#true} ~lk9~0 := 0; {93271#true} is VALID [2020-07-11 01:02:30,601 INFO L280 TraceCheckUtils]: 55: Hoare triple {93271#true} assume !(0 != ~p1~0); {93271#true} is VALID [2020-07-11 01:02:30,601 INFO L280 TraceCheckUtils]: 56: Hoare triple {93271#true} assume !(0 != ~p2~0); {93271#true} is VALID [2020-07-11 01:02:30,601 INFO L280 TraceCheckUtils]: 57: Hoare triple {93271#true} assume !(0 != ~p3~0); {93271#true} is VALID [2020-07-11 01:02:30,601 INFO L280 TraceCheckUtils]: 58: Hoare triple {93271#true} assume !(0 != ~p4~0); {93271#true} is VALID [2020-07-11 01:02:30,601 INFO L280 TraceCheckUtils]: 59: Hoare triple {93271#true} assume !(0 != ~p5~0); {93271#true} is VALID [2020-07-11 01:02:30,602 INFO L280 TraceCheckUtils]: 60: Hoare triple {93271#true} assume !(0 != ~p6~0); {93271#true} is VALID [2020-07-11 01:02:30,602 INFO L280 TraceCheckUtils]: 61: Hoare triple {93271#true} assume !(0 != ~p7~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-11 01:02:30,603 INFO L280 TraceCheckUtils]: 62: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p8~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-11 01:02:30,603 INFO L280 TraceCheckUtils]: 63: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p9~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-11 01:02:30,604 INFO L280 TraceCheckUtils]: 64: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p1~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-11 01:02:30,604 INFO L280 TraceCheckUtils]: 65: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p2~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-11 01:02:30,605 INFO L280 TraceCheckUtils]: 66: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p3~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-11 01:02:30,605 INFO L280 TraceCheckUtils]: 67: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p4~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-11 01:02:30,606 INFO L280 TraceCheckUtils]: 68: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p5~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-11 01:02:30,606 INFO L280 TraceCheckUtils]: 69: Hoare triple {93275#(= 0 main_~p7~0)} assume !(0 != ~p6~0); {93275#(= 0 main_~p7~0)} is VALID [2020-07-11 01:02:30,607 INFO L280 TraceCheckUtils]: 70: Hoare triple {93275#(= 0 main_~p7~0)} assume 0 != ~p7~0; {93272#false} is VALID [2020-07-11 01:02:30,607 INFO L280 TraceCheckUtils]: 71: Hoare triple {93272#false} assume 1 != ~lk7~0; {93272#false} is VALID [2020-07-11 01:02:30,607 INFO L280 TraceCheckUtils]: 72: Hoare triple {93272#false} assume !false; {93272#false} is VALID [2020-07-11 01:02:30,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:02:30,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924728956] [2020-07-11 01:02:30,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:02:30,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:02:30,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53475597] [2020-07-11 01:02:30,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-11 01:02:30,612 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:02:30,612 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:02:30,674 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:02:30,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:02:30,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:02:30,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:02:30,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:02:30,675 INFO L87 Difference]: Start difference. First operand 3243 states and 4202 transitions. Second operand 3 states. [2020-07-11 01:02:52,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:02:52,372 INFO L93 Difference]: Finished difference Result 9455 states and 12268 transitions. [2020-07-11 01:02:52,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:02:52,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-07-11 01:02:52,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:02:52,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:02:52,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-11 01:02:52,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:02:52,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-11 01:02:52,377 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 280 transitions. [2020-07-11 01:02:52,641 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 280 edges. 280 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:02:53,980 INFO L225 Difference]: With dead ends: 9455 [2020-07-11 01:02:53,980 INFO L226 Difference]: Without dead ends: 6253 [2020-07-11 01:02:53,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:02:53,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6253 states. [2020-07-11 01:03:11,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6253 to 6251. [2020-07-11 01:03:11,472 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:03:11,472 INFO L82 GeneralOperation]: Start isEquivalent. First operand 6253 states. Second operand 6251 states. [2020-07-11 01:03:11,472 INFO L74 IsIncluded]: Start isIncluded. First operand 6253 states. Second operand 6251 states. [2020-07-11 01:03:11,473 INFO L87 Difference]: Start difference. First operand 6253 states. Second operand 6251 states. [2020-07-11 01:03:12,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:03:12,925 INFO L93 Difference]: Finished difference Result 6253 states and 7979 transitions. [2020-07-11 01:03:12,925 INFO L276 IsEmpty]: Start isEmpty. Operand 6253 states and 7979 transitions. [2020-07-11 01:03:12,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:03:12,931 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:03:12,931 INFO L74 IsIncluded]: Start isIncluded. First operand 6251 states. Second operand 6253 states. [2020-07-11 01:03:12,931 INFO L87 Difference]: Start difference. First operand 6251 states. Second operand 6253 states. [2020-07-11 01:03:14,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:03:14,451 INFO L93 Difference]: Finished difference Result 6253 states and 7979 transitions. [2020-07-11 01:03:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 6253 states and 7979 transitions. [2020-07-11 01:03:14,461 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:03:14,461 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:03:14,461 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:03:14,461 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:03:14,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6251 states. [2020-07-11 01:03:16,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6251 states to 6251 states and 7978 transitions. [2020-07-11 01:03:16,007 INFO L78 Accepts]: Start accepts. Automaton has 6251 states and 7978 transitions. Word has length 73 [2020-07-11 01:03:16,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:03:16,007 INFO L479 AbstractCegarLoop]: Abstraction has 6251 states and 7978 transitions. [2020-07-11 01:03:16,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:03:16,007 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6251 states and 7978 transitions. [2020-07-11 01:03:26,506 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7978 edges. 7978 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:03:26,506 INFO L276 IsEmpty]: Start isEmpty. Operand 6251 states and 7978 transitions. [2020-07-11 01:03:26,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-11 01:03:26,510 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:03:26,510 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] [2020-07-11 01:03:26,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-11 01:03:26,510 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:03:26,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:03:26,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1012461522, now seen corresponding path program 1 times [2020-07-11 01:03:26,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:03:26,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758671725] [2020-07-11 01:03:26,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:03:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:03:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:03:26,558 INFO L280 TraceCheckUtils]: 0: Hoare triple {137196#true} assume true; {137196#true} is VALID [2020-07-11 01:03:26,558 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {137196#true} {137196#true} #247#return; {137196#true} is VALID [2020-07-11 01:03:26,558 INFO L263 TraceCheckUtils]: 0: Hoare triple {137196#true} call ULTIMATE.init(); {137196#true} is VALID [2020-07-11 01:03:26,559 INFO L280 TraceCheckUtils]: 1: Hoare triple {137196#true} assume true; {137196#true} is VALID [2020-07-11 01:03:26,559 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {137196#true} {137196#true} #247#return; {137196#true} is VALID [2020-07-11 01:03:26,560 INFO L263 TraceCheckUtils]: 3: Hoare triple {137196#true} call #t~ret10 := main(); {137196#true} is VALID [2020-07-11 01:03:26,560 INFO L280 TraceCheckUtils]: 4: Hoare triple {137196#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {137196#true} is VALID [2020-07-11 01:03:26,560 INFO L280 TraceCheckUtils]: 5: Hoare triple {137196#true} ~p1~0 := #t~nondet0; {137196#true} is VALID [2020-07-11 01:03:26,560 INFO L280 TraceCheckUtils]: 6: Hoare triple {137196#true} havoc #t~nondet0; {137196#true} is VALID [2020-07-11 01:03:26,560 INFO L280 TraceCheckUtils]: 7: Hoare triple {137196#true} havoc ~lk1~0; {137196#true} is VALID [2020-07-11 01:03:26,561 INFO L280 TraceCheckUtils]: 8: Hoare triple {137196#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {137196#true} is VALID [2020-07-11 01:03:26,561 INFO L280 TraceCheckUtils]: 9: Hoare triple {137196#true} ~p2~0 := #t~nondet1; {137196#true} is VALID [2020-07-11 01:03:26,561 INFO L280 TraceCheckUtils]: 10: Hoare triple {137196#true} havoc #t~nondet1; {137196#true} is VALID [2020-07-11 01:03:26,561 INFO L280 TraceCheckUtils]: 11: Hoare triple {137196#true} havoc ~lk2~0; {137196#true} is VALID [2020-07-11 01:03:26,561 INFO L280 TraceCheckUtils]: 12: Hoare triple {137196#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {137196#true} is VALID [2020-07-11 01:03:26,562 INFO L280 TraceCheckUtils]: 13: Hoare triple {137196#true} ~p3~0 := #t~nondet2; {137196#true} is VALID [2020-07-11 01:03:26,562 INFO L280 TraceCheckUtils]: 14: Hoare triple {137196#true} havoc #t~nondet2; {137196#true} is VALID [2020-07-11 01:03:26,562 INFO L280 TraceCheckUtils]: 15: Hoare triple {137196#true} havoc ~lk3~0; {137196#true} is VALID [2020-07-11 01:03:26,562 INFO L280 TraceCheckUtils]: 16: Hoare triple {137196#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {137196#true} is VALID [2020-07-11 01:03:26,562 INFO L280 TraceCheckUtils]: 17: Hoare triple {137196#true} ~p4~0 := #t~nondet3; {137196#true} is VALID [2020-07-11 01:03:26,562 INFO L280 TraceCheckUtils]: 18: Hoare triple {137196#true} havoc #t~nondet3; {137196#true} is VALID [2020-07-11 01:03:26,563 INFO L280 TraceCheckUtils]: 19: Hoare triple {137196#true} havoc ~lk4~0; {137196#true} is VALID [2020-07-11 01:03:26,563 INFO L280 TraceCheckUtils]: 20: Hoare triple {137196#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {137196#true} is VALID [2020-07-11 01:03:26,563 INFO L280 TraceCheckUtils]: 21: Hoare triple {137196#true} ~p5~0 := #t~nondet4; {137196#true} is VALID [2020-07-11 01:03:26,563 INFO L280 TraceCheckUtils]: 22: Hoare triple {137196#true} havoc #t~nondet4; {137196#true} is VALID [2020-07-11 01:03:26,563 INFO L280 TraceCheckUtils]: 23: Hoare triple {137196#true} havoc ~lk5~0; {137196#true} is VALID [2020-07-11 01:03:26,564 INFO L280 TraceCheckUtils]: 24: Hoare triple {137196#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {137196#true} is VALID [2020-07-11 01:03:26,564 INFO L280 TraceCheckUtils]: 25: Hoare triple {137196#true} ~p6~0 := #t~nondet5; {137196#true} is VALID [2020-07-11 01:03:26,564 INFO L280 TraceCheckUtils]: 26: Hoare triple {137196#true} havoc #t~nondet5; {137196#true} is VALID [2020-07-11 01:03:26,564 INFO L280 TraceCheckUtils]: 27: Hoare triple {137196#true} havoc ~lk6~0; {137196#true} is VALID [2020-07-11 01:03:26,564 INFO L280 TraceCheckUtils]: 28: Hoare triple {137196#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {137196#true} is VALID [2020-07-11 01:03:26,565 INFO L280 TraceCheckUtils]: 29: Hoare triple {137196#true} ~p7~0 := #t~nondet6; {137196#true} is VALID [2020-07-11 01:03:26,565 INFO L280 TraceCheckUtils]: 30: Hoare triple {137196#true} havoc #t~nondet6; {137196#true} is VALID [2020-07-11 01:03:26,565 INFO L280 TraceCheckUtils]: 31: Hoare triple {137196#true} havoc ~lk7~0; {137196#true} is VALID [2020-07-11 01:03:26,565 INFO L280 TraceCheckUtils]: 32: Hoare triple {137196#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {137196#true} is VALID [2020-07-11 01:03:26,565 INFO L280 TraceCheckUtils]: 33: Hoare triple {137196#true} ~p8~0 := #t~nondet7; {137196#true} is VALID [2020-07-11 01:03:26,565 INFO L280 TraceCheckUtils]: 34: Hoare triple {137196#true} havoc #t~nondet7; {137196#true} is VALID [2020-07-11 01:03:26,566 INFO L280 TraceCheckUtils]: 35: Hoare triple {137196#true} havoc ~lk8~0; {137196#true} is VALID [2020-07-11 01:03:26,566 INFO L280 TraceCheckUtils]: 36: Hoare triple {137196#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {137196#true} is VALID [2020-07-11 01:03:26,566 INFO L280 TraceCheckUtils]: 37: Hoare triple {137196#true} ~p9~0 := #t~nondet8; {137196#true} is VALID [2020-07-11 01:03:26,566 INFO L280 TraceCheckUtils]: 38: Hoare triple {137196#true} havoc #t~nondet8; {137196#true} is VALID [2020-07-11 01:03:26,566 INFO L280 TraceCheckUtils]: 39: Hoare triple {137196#true} havoc ~lk9~0; {137196#true} is VALID [2020-07-11 01:03:26,567 INFO L280 TraceCheckUtils]: 40: Hoare triple {137196#true} havoc ~cond~0; {137196#true} is VALID [2020-07-11 01:03:26,567 INFO L280 TraceCheckUtils]: 41: Hoare triple {137196#true} assume !false; {137196#true} is VALID [2020-07-11 01:03:26,567 INFO L280 TraceCheckUtils]: 42: Hoare triple {137196#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {137196#true} is VALID [2020-07-11 01:03:26,567 INFO L280 TraceCheckUtils]: 43: Hoare triple {137196#true} ~cond~0 := #t~nondet9; {137196#true} is VALID [2020-07-11 01:03:26,567 INFO L280 TraceCheckUtils]: 44: Hoare triple {137196#true} havoc #t~nondet9; {137196#true} is VALID [2020-07-11 01:03:26,568 INFO L280 TraceCheckUtils]: 45: Hoare triple {137196#true} assume !(0 == ~cond~0); {137196#true} is VALID [2020-07-11 01:03:26,568 INFO L280 TraceCheckUtils]: 46: Hoare triple {137196#true} ~lk1~0 := 0; {137196#true} is VALID [2020-07-11 01:03:26,568 INFO L280 TraceCheckUtils]: 47: Hoare triple {137196#true} ~lk2~0 := 0; {137196#true} is VALID [2020-07-11 01:03:26,568 INFO L280 TraceCheckUtils]: 48: Hoare triple {137196#true} ~lk3~0 := 0; {137196#true} is VALID [2020-07-11 01:03:26,568 INFO L280 TraceCheckUtils]: 49: Hoare triple {137196#true} ~lk4~0 := 0; {137196#true} is VALID [2020-07-11 01:03:26,568 INFO L280 TraceCheckUtils]: 50: Hoare triple {137196#true} ~lk5~0 := 0; {137196#true} is VALID [2020-07-11 01:03:26,569 INFO L280 TraceCheckUtils]: 51: Hoare triple {137196#true} ~lk6~0 := 0; {137196#true} is VALID [2020-07-11 01:03:26,569 INFO L280 TraceCheckUtils]: 52: Hoare triple {137196#true} ~lk7~0 := 0; {137196#true} is VALID [2020-07-11 01:03:26,569 INFO L280 TraceCheckUtils]: 53: Hoare triple {137196#true} ~lk8~0 := 0; {137196#true} is VALID [2020-07-11 01:03:26,569 INFO L280 TraceCheckUtils]: 54: Hoare triple {137196#true} ~lk9~0 := 0; {137196#true} is VALID [2020-07-11 01:03:26,569 INFO L280 TraceCheckUtils]: 55: Hoare triple {137196#true} assume !(0 != ~p1~0); {137196#true} is VALID [2020-07-11 01:03:26,570 INFO L280 TraceCheckUtils]: 56: Hoare triple {137196#true} assume !(0 != ~p2~0); {137196#true} is VALID [2020-07-11 01:03:26,570 INFO L280 TraceCheckUtils]: 57: Hoare triple {137196#true} assume !(0 != ~p3~0); {137196#true} is VALID [2020-07-11 01:03:26,570 INFO L280 TraceCheckUtils]: 58: Hoare triple {137196#true} assume !(0 != ~p4~0); {137196#true} is VALID [2020-07-11 01:03:26,570 INFO L280 TraceCheckUtils]: 59: Hoare triple {137196#true} assume !(0 != ~p5~0); {137196#true} is VALID [2020-07-11 01:03:26,570 INFO L280 TraceCheckUtils]: 60: Hoare triple {137196#true} assume !(0 != ~p6~0); {137196#true} is VALID [2020-07-11 01:03:26,570 INFO L280 TraceCheckUtils]: 61: Hoare triple {137196#true} assume !(0 != ~p7~0); {137196#true} is VALID [2020-07-11 01:03:26,577 INFO L280 TraceCheckUtils]: 62: Hoare triple {137196#true} assume !(0 != ~p8~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-11 01:03:26,578 INFO L280 TraceCheckUtils]: 63: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p9~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-11 01:03:26,578 INFO L280 TraceCheckUtils]: 64: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p1~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-11 01:03:26,579 INFO L280 TraceCheckUtils]: 65: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p2~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-11 01:03:26,579 INFO L280 TraceCheckUtils]: 66: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p3~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-11 01:03:26,580 INFO L280 TraceCheckUtils]: 67: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p4~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-11 01:03:26,580 INFO L280 TraceCheckUtils]: 68: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p5~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-11 01:03:26,581 INFO L280 TraceCheckUtils]: 69: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p6~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-11 01:03:26,581 INFO L280 TraceCheckUtils]: 70: Hoare triple {137200#(= 0 main_~p8~0)} assume !(0 != ~p7~0); {137200#(= 0 main_~p8~0)} is VALID [2020-07-11 01:03:26,582 INFO L280 TraceCheckUtils]: 71: Hoare triple {137200#(= 0 main_~p8~0)} assume 0 != ~p8~0; {137197#false} is VALID [2020-07-11 01:03:26,582 INFO L280 TraceCheckUtils]: 72: Hoare triple {137197#false} assume 1 != ~lk8~0; {137197#false} is VALID [2020-07-11 01:03:26,582 INFO L280 TraceCheckUtils]: 73: Hoare triple {137197#false} assume !false; {137197#false} is VALID [2020-07-11 01:03:26,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:03:26,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758671725] [2020-07-11 01:03:26,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:03:26,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:03:26,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076755048] [2020-07-11 01:03:26,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-11 01:03:26,587 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:03:26,587 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:03:26,643 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:03:26,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:03:26,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:03:26,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:03:26,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:03:26,644 INFO L87 Difference]: Start difference. First operand 6251 states and 7978 transitions. Second operand 3 states. [2020-07-11 01:04:19,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:04:19,615 INFO L93 Difference]: Finished difference Result 18287 states and 23340 transitions. [2020-07-11 01:04:19,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:04:19,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-11 01:04:19,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:04:19,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:04:19,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-11 01:04:19,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:04:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2020-07-11 01:04:19,619 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 280 transitions. [2020-07-11 01:04:19,865 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 280 edges. 280 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:04:25,131 INFO L225 Difference]: With dead ends: 18287 [2020-07-11 01:04:25,132 INFO L226 Difference]: Without dead ends: 12077 [2020-07-11 01:04:25,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:04:25,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12077 states. [2020-07-11 01:05:01,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12077 to 12075. [2020-07-11 01:05:01,762 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:05:01,762 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12077 states. Second operand 12075 states. [2020-07-11 01:05:01,762 INFO L74 IsIncluded]: Start isIncluded. First operand 12077 states. Second operand 12075 states. [2020-07-11 01:05:01,762 INFO L87 Difference]: Start difference. First operand 12077 states. Second operand 12075 states. [2020-07-11 01:05:08,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:08,203 INFO L93 Difference]: Finished difference Result 12077 states and 15147 transitions. [2020-07-11 01:05:08,203 INFO L276 IsEmpty]: Start isEmpty. Operand 12077 states and 15147 transitions. [2020-07-11 01:05:08,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:08,216 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:08,216 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 12077 states. [2020-07-11 01:05:08,217 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 12077 states. [2020-07-11 01:05:13,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:05:13,428 INFO L93 Difference]: Finished difference Result 12077 states and 15147 transitions. [2020-07-11 01:05:13,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12077 states and 15147 transitions. [2020-07-11 01:05:13,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:05:13,436 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:05:13,436 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:05:13,436 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:05:13,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-11 01:05:19,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 15146 transitions. [2020-07-11 01:05:19,377 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 15146 transitions. Word has length 74 [2020-07-11 01:05:19,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:05:19,377 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 15146 transitions. [2020-07-11 01:05:19,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:05:19,378 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 15146 transitions. [2020-07-11 01:05:40,236 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15146 edges. 15146 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:40,236 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 15146 transitions. [2020-07-11 01:05:40,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-11 01:05:40,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:05:40,240 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] [2020-07-11 01:05:40,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-11 01:05:40,240 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:05:40,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:05:40,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1143464253, now seen corresponding path program 1 times [2020-07-11 01:05:40,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:05:40,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160459037] [2020-07-11 01:05:40,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:05:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:05:40,290 INFO L280 TraceCheckUtils]: 0: Hoare triple {222081#true} assume true; {222081#true} is VALID [2020-07-11 01:05:40,290 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {222081#true} {222081#true} #247#return; {222081#true} is VALID [2020-07-11 01:05:40,290 INFO L263 TraceCheckUtils]: 0: Hoare triple {222081#true} call ULTIMATE.init(); {222081#true} is VALID [2020-07-11 01:05:40,291 INFO L280 TraceCheckUtils]: 1: Hoare triple {222081#true} assume true; {222081#true} is VALID [2020-07-11 01:05:40,291 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {222081#true} {222081#true} #247#return; {222081#true} is VALID [2020-07-11 01:05:40,291 INFO L263 TraceCheckUtils]: 3: Hoare triple {222081#true} call #t~ret10 := main(); {222081#true} is VALID [2020-07-11 01:05:40,291 INFO L280 TraceCheckUtils]: 4: Hoare triple {222081#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {222081#true} is VALID [2020-07-11 01:05:40,291 INFO L280 TraceCheckUtils]: 5: Hoare triple {222081#true} ~p1~0 := #t~nondet0; {222081#true} is VALID [2020-07-11 01:05:40,291 INFO L280 TraceCheckUtils]: 6: Hoare triple {222081#true} havoc #t~nondet0; {222081#true} is VALID [2020-07-11 01:05:40,292 INFO L280 TraceCheckUtils]: 7: Hoare triple {222081#true} havoc ~lk1~0; {222081#true} is VALID [2020-07-11 01:05:40,292 INFO L280 TraceCheckUtils]: 8: Hoare triple {222081#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {222081#true} is VALID [2020-07-11 01:05:40,292 INFO L280 TraceCheckUtils]: 9: Hoare triple {222081#true} ~p2~0 := #t~nondet1; {222081#true} is VALID [2020-07-11 01:05:40,292 INFO L280 TraceCheckUtils]: 10: Hoare triple {222081#true} havoc #t~nondet1; {222081#true} is VALID [2020-07-11 01:05:40,292 INFO L280 TraceCheckUtils]: 11: Hoare triple {222081#true} havoc ~lk2~0; {222081#true} is VALID [2020-07-11 01:05:40,292 INFO L280 TraceCheckUtils]: 12: Hoare triple {222081#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {222081#true} is VALID [2020-07-11 01:05:40,293 INFO L280 TraceCheckUtils]: 13: Hoare triple {222081#true} ~p3~0 := #t~nondet2; {222081#true} is VALID [2020-07-11 01:05:40,293 INFO L280 TraceCheckUtils]: 14: Hoare triple {222081#true} havoc #t~nondet2; {222081#true} is VALID [2020-07-11 01:05:40,293 INFO L280 TraceCheckUtils]: 15: Hoare triple {222081#true} havoc ~lk3~0; {222081#true} is VALID [2020-07-11 01:05:40,293 INFO L280 TraceCheckUtils]: 16: Hoare triple {222081#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {222081#true} is VALID [2020-07-11 01:05:40,293 INFO L280 TraceCheckUtils]: 17: Hoare triple {222081#true} ~p4~0 := #t~nondet3; {222081#true} is VALID [2020-07-11 01:05:40,294 INFO L280 TraceCheckUtils]: 18: Hoare triple {222081#true} havoc #t~nondet3; {222081#true} is VALID [2020-07-11 01:05:40,294 INFO L280 TraceCheckUtils]: 19: Hoare triple {222081#true} havoc ~lk4~0; {222081#true} is VALID [2020-07-11 01:05:40,294 INFO L280 TraceCheckUtils]: 20: Hoare triple {222081#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {222081#true} is VALID [2020-07-11 01:05:40,294 INFO L280 TraceCheckUtils]: 21: Hoare triple {222081#true} ~p5~0 := #t~nondet4; {222081#true} is VALID [2020-07-11 01:05:40,294 INFO L280 TraceCheckUtils]: 22: Hoare triple {222081#true} havoc #t~nondet4; {222081#true} is VALID [2020-07-11 01:05:40,294 INFO L280 TraceCheckUtils]: 23: Hoare triple {222081#true} havoc ~lk5~0; {222081#true} is VALID [2020-07-11 01:05:40,295 INFO L280 TraceCheckUtils]: 24: Hoare triple {222081#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {222081#true} is VALID [2020-07-11 01:05:40,295 INFO L280 TraceCheckUtils]: 25: Hoare triple {222081#true} ~p6~0 := #t~nondet5; {222081#true} is VALID [2020-07-11 01:05:40,295 INFO L280 TraceCheckUtils]: 26: Hoare triple {222081#true} havoc #t~nondet5; {222081#true} is VALID [2020-07-11 01:05:40,295 INFO L280 TraceCheckUtils]: 27: Hoare triple {222081#true} havoc ~lk6~0; {222081#true} is VALID [2020-07-11 01:05:40,295 INFO L280 TraceCheckUtils]: 28: Hoare triple {222081#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {222081#true} is VALID [2020-07-11 01:05:40,295 INFO L280 TraceCheckUtils]: 29: Hoare triple {222081#true} ~p7~0 := #t~nondet6; {222081#true} is VALID [2020-07-11 01:05:40,296 INFO L280 TraceCheckUtils]: 30: Hoare triple {222081#true} havoc #t~nondet6; {222081#true} is VALID [2020-07-11 01:05:40,296 INFO L280 TraceCheckUtils]: 31: Hoare triple {222081#true} havoc ~lk7~0; {222081#true} is VALID [2020-07-11 01:05:40,296 INFO L280 TraceCheckUtils]: 32: Hoare triple {222081#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {222081#true} is VALID [2020-07-11 01:05:40,296 INFO L280 TraceCheckUtils]: 33: Hoare triple {222081#true} ~p8~0 := #t~nondet7; {222081#true} is VALID [2020-07-11 01:05:40,296 INFO L280 TraceCheckUtils]: 34: Hoare triple {222081#true} havoc #t~nondet7; {222081#true} is VALID [2020-07-11 01:05:40,296 INFO L280 TraceCheckUtils]: 35: Hoare triple {222081#true} havoc ~lk8~0; {222081#true} is VALID [2020-07-11 01:05:40,297 INFO L280 TraceCheckUtils]: 36: Hoare triple {222081#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {222081#true} is VALID [2020-07-11 01:05:40,297 INFO L280 TraceCheckUtils]: 37: Hoare triple {222081#true} ~p9~0 := #t~nondet8; {222081#true} is VALID [2020-07-11 01:05:40,297 INFO L280 TraceCheckUtils]: 38: Hoare triple {222081#true} havoc #t~nondet8; {222081#true} is VALID [2020-07-11 01:05:40,297 INFO L280 TraceCheckUtils]: 39: Hoare triple {222081#true} havoc ~lk9~0; {222081#true} is VALID [2020-07-11 01:05:40,297 INFO L280 TraceCheckUtils]: 40: Hoare triple {222081#true} havoc ~cond~0; {222081#true} is VALID [2020-07-11 01:05:40,297 INFO L280 TraceCheckUtils]: 41: Hoare triple {222081#true} assume !false; {222081#true} is VALID [2020-07-11 01:05:40,298 INFO L280 TraceCheckUtils]: 42: Hoare triple {222081#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {222081#true} is VALID [2020-07-11 01:05:40,298 INFO L280 TraceCheckUtils]: 43: Hoare triple {222081#true} ~cond~0 := #t~nondet9; {222081#true} is VALID [2020-07-11 01:05:40,298 INFO L280 TraceCheckUtils]: 44: Hoare triple {222081#true} havoc #t~nondet9; {222081#true} is VALID [2020-07-11 01:05:40,298 INFO L280 TraceCheckUtils]: 45: Hoare triple {222081#true} assume !(0 == ~cond~0); {222081#true} is VALID [2020-07-11 01:05:40,298 INFO L280 TraceCheckUtils]: 46: Hoare triple {222081#true} ~lk1~0 := 0; {222081#true} is VALID [2020-07-11 01:05:40,298 INFO L280 TraceCheckUtils]: 47: Hoare triple {222081#true} ~lk2~0 := 0; {222081#true} is VALID [2020-07-11 01:05:40,299 INFO L280 TraceCheckUtils]: 48: Hoare triple {222081#true} ~lk3~0 := 0; {222081#true} is VALID [2020-07-11 01:05:40,299 INFO L280 TraceCheckUtils]: 49: Hoare triple {222081#true} ~lk4~0 := 0; {222081#true} is VALID [2020-07-11 01:05:40,299 INFO L280 TraceCheckUtils]: 50: Hoare triple {222081#true} ~lk5~0 := 0; {222081#true} is VALID [2020-07-11 01:05:40,299 INFO L280 TraceCheckUtils]: 51: Hoare triple {222081#true} ~lk6~0 := 0; {222081#true} is VALID [2020-07-11 01:05:40,299 INFO L280 TraceCheckUtils]: 52: Hoare triple {222081#true} ~lk7~0 := 0; {222081#true} is VALID [2020-07-11 01:05:40,300 INFO L280 TraceCheckUtils]: 53: Hoare triple {222081#true} ~lk8~0 := 0; {222081#true} is VALID [2020-07-11 01:05:40,300 INFO L280 TraceCheckUtils]: 54: Hoare triple {222081#true} ~lk9~0 := 0; {222081#true} is VALID [2020-07-11 01:05:40,300 INFO L280 TraceCheckUtils]: 55: Hoare triple {222081#true} assume !(0 != ~p1~0); {222081#true} is VALID [2020-07-11 01:05:40,300 INFO L280 TraceCheckUtils]: 56: Hoare triple {222081#true} assume !(0 != ~p2~0); {222081#true} is VALID [2020-07-11 01:05:40,300 INFO L280 TraceCheckUtils]: 57: Hoare triple {222081#true} assume !(0 != ~p3~0); {222081#true} is VALID [2020-07-11 01:05:40,300 INFO L280 TraceCheckUtils]: 58: Hoare triple {222081#true} assume !(0 != ~p4~0); {222081#true} is VALID [2020-07-11 01:05:40,301 INFO L280 TraceCheckUtils]: 59: Hoare triple {222081#true} assume !(0 != ~p5~0); {222081#true} is VALID [2020-07-11 01:05:40,301 INFO L280 TraceCheckUtils]: 60: Hoare triple {222081#true} assume !(0 != ~p6~0); {222081#true} is VALID [2020-07-11 01:05:40,301 INFO L280 TraceCheckUtils]: 61: Hoare triple {222081#true} assume 0 != ~p7~0; {222081#true} is VALID [2020-07-11 01:05:40,301 INFO L280 TraceCheckUtils]: 62: Hoare triple {222081#true} ~lk7~0 := 1; {222085#(= main_~lk7~0 1)} is VALID [2020-07-11 01:05:40,302 INFO L280 TraceCheckUtils]: 63: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p8~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-11 01:05:40,302 INFO L280 TraceCheckUtils]: 64: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p9~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-11 01:05:40,303 INFO L280 TraceCheckUtils]: 65: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p1~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-11 01:05:40,303 INFO L280 TraceCheckUtils]: 66: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p2~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-11 01:05:40,304 INFO L280 TraceCheckUtils]: 67: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p3~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-11 01:05:40,304 INFO L280 TraceCheckUtils]: 68: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p4~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-11 01:05:40,305 INFO L280 TraceCheckUtils]: 69: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p5~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-11 01:05:40,305 INFO L280 TraceCheckUtils]: 70: Hoare triple {222085#(= main_~lk7~0 1)} assume !(0 != ~p6~0); {222085#(= main_~lk7~0 1)} is VALID [2020-07-11 01:05:40,305 INFO L280 TraceCheckUtils]: 71: Hoare triple {222085#(= main_~lk7~0 1)} assume 0 != ~p7~0; {222085#(= main_~lk7~0 1)} is VALID [2020-07-11 01:05:40,306 INFO L280 TraceCheckUtils]: 72: Hoare triple {222085#(= main_~lk7~0 1)} assume 1 != ~lk7~0; {222082#false} is VALID [2020-07-11 01:05:40,306 INFO L280 TraceCheckUtils]: 73: Hoare triple {222082#false} assume !false; {222082#false} is VALID [2020-07-11 01:05:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:05:40,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160459037] [2020-07-11 01:05:40,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:05:40,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:05:40,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966756962] [2020-07-11 01:05:40,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-11 01:05:40,311 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:05:40,311 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:05:40,372 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:05:40,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:05:40,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:05:40,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:05:40,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:05:40,373 INFO L87 Difference]: Start difference. First operand 12075 states and 15146 transitions. Second operand 3 states. [2020-07-11 01:06:34,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:06:34,402 INFO L93 Difference]: Finished difference Result 14255 states and 17708 transitions. [2020-07-11 01:06:34,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:06:34,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-11 01:06:34,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:06:34,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:06:34,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2020-07-11 01:06:34,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:06:34,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2020-07-11 01:06:34,406 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 177 transitions. [2020-07-11 01:06:34,570 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 177 edges. 177 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:06:43,044 INFO L225 Difference]: With dead ends: 14255 [2020-07-11 01:06:43,045 INFO L226 Difference]: Without dead ends: 14253 [2020-07-11 01:06:43,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:06:43,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14253 states. [2020-07-11 01:07:22,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14253 to 12075. [2020-07-11 01:07:22,775 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:07:22,775 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14253 states. Second operand 12075 states. [2020-07-11 01:07:22,775 INFO L74 IsIncluded]: Start isIncluded. First operand 14253 states. Second operand 12075 states. [2020-07-11 01:07:22,775 INFO L87 Difference]: Start difference. First operand 14253 states. Second operand 12075 states. [2020-07-11 01:07:31,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:07:31,087 INFO L93 Difference]: Finished difference Result 14253 states and 17579 transitions. [2020-07-11 01:07:31,087 INFO L276 IsEmpty]: Start isEmpty. Operand 14253 states and 17579 transitions. [2020-07-11 01:07:31,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:07:31,096 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:07:31,096 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 14253 states. [2020-07-11 01:07:31,096 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 14253 states. [2020-07-11 01:07:38,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:07:38,875 INFO L93 Difference]: Finished difference Result 14253 states and 17579 transitions. [2020-07-11 01:07:38,875 INFO L276 IsEmpty]: Start isEmpty. Operand 14253 states and 17579 transitions. [2020-07-11 01:07:38,886 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:07:38,886 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:07:38,886 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:07:38,886 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:07:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-11 01:07:45,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 15018 transitions. [2020-07-11 01:07:45,310 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 15018 transitions. Word has length 74 [2020-07-11 01:07:45,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:07:45,311 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 15018 transitions. [2020-07-11 01:07:45,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:07:45,311 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 15018 transitions. [2020-07-11 01:08:06,524 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15018 edges. 15018 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:06,524 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 15018 transitions. [2020-07-11 01:08:06,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-11 01:08:06,529 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:08:06,529 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] [2020-07-11 01:08:06,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-11 01:08:06,530 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:08:06,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:08:06,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1847607922, now seen corresponding path program 1 times [2020-07-11 01:08:06,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:08:06,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915371121] [2020-07-11 01:08:06,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:08:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:06,565 INFO L280 TraceCheckUtils]: 0: Hoare triple {303254#true} assume true; {303254#true} is VALID [2020-07-11 01:08:06,565 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {303254#true} {303254#true} #247#return; {303254#true} is VALID [2020-07-11 01:08:06,565 INFO L263 TraceCheckUtils]: 0: Hoare triple {303254#true} call ULTIMATE.init(); {303254#true} is VALID [2020-07-11 01:08:06,565 INFO L280 TraceCheckUtils]: 1: Hoare triple {303254#true} assume true; {303254#true} is VALID [2020-07-11 01:08:06,566 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {303254#true} {303254#true} #247#return; {303254#true} is VALID [2020-07-11 01:08:06,566 INFO L263 TraceCheckUtils]: 3: Hoare triple {303254#true} call #t~ret10 := main(); {303254#true} is VALID [2020-07-11 01:08:06,566 INFO L280 TraceCheckUtils]: 4: Hoare triple {303254#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {303254#true} is VALID [2020-07-11 01:08:06,566 INFO L280 TraceCheckUtils]: 5: Hoare triple {303254#true} ~p1~0 := #t~nondet0; {303254#true} is VALID [2020-07-11 01:08:06,566 INFO L280 TraceCheckUtils]: 6: Hoare triple {303254#true} havoc #t~nondet0; {303254#true} is VALID [2020-07-11 01:08:06,566 INFO L280 TraceCheckUtils]: 7: Hoare triple {303254#true} havoc ~lk1~0; {303254#true} is VALID [2020-07-11 01:08:06,567 INFO L280 TraceCheckUtils]: 8: Hoare triple {303254#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {303254#true} is VALID [2020-07-11 01:08:06,567 INFO L280 TraceCheckUtils]: 9: Hoare triple {303254#true} ~p2~0 := #t~nondet1; {303254#true} is VALID [2020-07-11 01:08:06,567 INFO L280 TraceCheckUtils]: 10: Hoare triple {303254#true} havoc #t~nondet1; {303254#true} is VALID [2020-07-11 01:08:06,567 INFO L280 TraceCheckUtils]: 11: Hoare triple {303254#true} havoc ~lk2~0; {303254#true} is VALID [2020-07-11 01:08:06,567 INFO L280 TraceCheckUtils]: 12: Hoare triple {303254#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {303254#true} is VALID [2020-07-11 01:08:06,567 INFO L280 TraceCheckUtils]: 13: Hoare triple {303254#true} ~p3~0 := #t~nondet2; {303254#true} is VALID [2020-07-11 01:08:06,568 INFO L280 TraceCheckUtils]: 14: Hoare triple {303254#true} havoc #t~nondet2; {303254#true} is VALID [2020-07-11 01:08:06,568 INFO L280 TraceCheckUtils]: 15: Hoare triple {303254#true} havoc ~lk3~0; {303254#true} is VALID [2020-07-11 01:08:06,568 INFO L280 TraceCheckUtils]: 16: Hoare triple {303254#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {303254#true} is VALID [2020-07-11 01:08:06,568 INFO L280 TraceCheckUtils]: 17: Hoare triple {303254#true} ~p4~0 := #t~nondet3; {303254#true} is VALID [2020-07-11 01:08:06,568 INFO L280 TraceCheckUtils]: 18: Hoare triple {303254#true} havoc #t~nondet3; {303254#true} is VALID [2020-07-11 01:08:06,568 INFO L280 TraceCheckUtils]: 19: Hoare triple {303254#true} havoc ~lk4~0; {303254#true} is VALID [2020-07-11 01:08:06,569 INFO L280 TraceCheckUtils]: 20: Hoare triple {303254#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {303254#true} is VALID [2020-07-11 01:08:06,569 INFO L280 TraceCheckUtils]: 21: Hoare triple {303254#true} ~p5~0 := #t~nondet4; {303254#true} is VALID [2020-07-11 01:08:06,569 INFO L280 TraceCheckUtils]: 22: Hoare triple {303254#true} havoc #t~nondet4; {303254#true} is VALID [2020-07-11 01:08:06,569 INFO L280 TraceCheckUtils]: 23: Hoare triple {303254#true} havoc ~lk5~0; {303254#true} is VALID [2020-07-11 01:08:06,569 INFO L280 TraceCheckUtils]: 24: Hoare triple {303254#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {303254#true} is VALID [2020-07-11 01:08:06,569 INFO L280 TraceCheckUtils]: 25: Hoare triple {303254#true} ~p6~0 := #t~nondet5; {303254#true} is VALID [2020-07-11 01:08:06,570 INFO L280 TraceCheckUtils]: 26: Hoare triple {303254#true} havoc #t~nondet5; {303254#true} is VALID [2020-07-11 01:08:06,570 INFO L280 TraceCheckUtils]: 27: Hoare triple {303254#true} havoc ~lk6~0; {303254#true} is VALID [2020-07-11 01:08:06,570 INFO L280 TraceCheckUtils]: 28: Hoare triple {303254#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {303254#true} is VALID [2020-07-11 01:08:06,570 INFO L280 TraceCheckUtils]: 29: Hoare triple {303254#true} ~p7~0 := #t~nondet6; {303254#true} is VALID [2020-07-11 01:08:06,570 INFO L280 TraceCheckUtils]: 30: Hoare triple {303254#true} havoc #t~nondet6; {303254#true} is VALID [2020-07-11 01:08:06,570 INFO L280 TraceCheckUtils]: 31: Hoare triple {303254#true} havoc ~lk7~0; {303254#true} is VALID [2020-07-11 01:08:06,571 INFO L280 TraceCheckUtils]: 32: Hoare triple {303254#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {303254#true} is VALID [2020-07-11 01:08:06,571 INFO L280 TraceCheckUtils]: 33: Hoare triple {303254#true} ~p8~0 := #t~nondet7; {303254#true} is VALID [2020-07-11 01:08:06,571 INFO L280 TraceCheckUtils]: 34: Hoare triple {303254#true} havoc #t~nondet7; {303254#true} is VALID [2020-07-11 01:08:06,571 INFO L280 TraceCheckUtils]: 35: Hoare triple {303254#true} havoc ~lk8~0; {303254#true} is VALID [2020-07-11 01:08:06,571 INFO L280 TraceCheckUtils]: 36: Hoare triple {303254#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {303254#true} is VALID [2020-07-11 01:08:06,572 INFO L280 TraceCheckUtils]: 37: Hoare triple {303254#true} ~p9~0 := #t~nondet8; {303254#true} is VALID [2020-07-11 01:08:06,572 INFO L280 TraceCheckUtils]: 38: Hoare triple {303254#true} havoc #t~nondet8; {303254#true} is VALID [2020-07-11 01:08:06,572 INFO L280 TraceCheckUtils]: 39: Hoare triple {303254#true} havoc ~lk9~0; {303254#true} is VALID [2020-07-11 01:08:06,572 INFO L280 TraceCheckUtils]: 40: Hoare triple {303254#true} havoc ~cond~0; {303254#true} is VALID [2020-07-11 01:08:06,572 INFO L280 TraceCheckUtils]: 41: Hoare triple {303254#true} assume !false; {303254#true} is VALID [2020-07-11 01:08:06,572 INFO L280 TraceCheckUtils]: 42: Hoare triple {303254#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {303254#true} is VALID [2020-07-11 01:08:06,572 INFO L280 TraceCheckUtils]: 43: Hoare triple {303254#true} ~cond~0 := #t~nondet9; {303254#true} is VALID [2020-07-11 01:08:06,573 INFO L280 TraceCheckUtils]: 44: Hoare triple {303254#true} havoc #t~nondet9; {303254#true} is VALID [2020-07-11 01:08:06,573 INFO L280 TraceCheckUtils]: 45: Hoare triple {303254#true} assume !(0 == ~cond~0); {303254#true} is VALID [2020-07-11 01:08:06,573 INFO L280 TraceCheckUtils]: 46: Hoare triple {303254#true} ~lk1~0 := 0; {303254#true} is VALID [2020-07-11 01:08:06,573 INFO L280 TraceCheckUtils]: 47: Hoare triple {303254#true} ~lk2~0 := 0; {303254#true} is VALID [2020-07-11 01:08:06,573 INFO L280 TraceCheckUtils]: 48: Hoare triple {303254#true} ~lk3~0 := 0; {303254#true} is VALID [2020-07-11 01:08:06,573 INFO L280 TraceCheckUtils]: 49: Hoare triple {303254#true} ~lk4~0 := 0; {303254#true} is VALID [2020-07-11 01:08:06,574 INFO L280 TraceCheckUtils]: 50: Hoare triple {303254#true} ~lk5~0 := 0; {303254#true} is VALID [2020-07-11 01:08:06,574 INFO L280 TraceCheckUtils]: 51: Hoare triple {303254#true} ~lk6~0 := 0; {303254#true} is VALID [2020-07-11 01:08:06,574 INFO L280 TraceCheckUtils]: 52: Hoare triple {303254#true} ~lk7~0 := 0; {303254#true} is VALID [2020-07-11 01:08:06,574 INFO L280 TraceCheckUtils]: 53: Hoare triple {303254#true} ~lk8~0 := 0; {303254#true} is VALID [2020-07-11 01:08:06,574 INFO L280 TraceCheckUtils]: 54: Hoare triple {303254#true} ~lk9~0 := 0; {303254#true} is VALID [2020-07-11 01:08:06,574 INFO L280 TraceCheckUtils]: 55: Hoare triple {303254#true} assume !(0 != ~p1~0); {303254#true} is VALID [2020-07-11 01:08:06,575 INFO L280 TraceCheckUtils]: 56: Hoare triple {303254#true} assume !(0 != ~p2~0); {303254#true} is VALID [2020-07-11 01:08:06,575 INFO L280 TraceCheckUtils]: 57: Hoare triple {303254#true} assume !(0 != ~p3~0); {303254#true} is VALID [2020-07-11 01:08:06,575 INFO L280 TraceCheckUtils]: 58: Hoare triple {303254#true} assume !(0 != ~p4~0); {303254#true} is VALID [2020-07-11 01:08:06,575 INFO L280 TraceCheckUtils]: 59: Hoare triple {303254#true} assume !(0 != ~p5~0); {303254#true} is VALID [2020-07-11 01:08:06,575 INFO L280 TraceCheckUtils]: 60: Hoare triple {303254#true} assume !(0 != ~p6~0); {303254#true} is VALID [2020-07-11 01:08:06,576 INFO L280 TraceCheckUtils]: 61: Hoare triple {303254#true} assume !(0 != ~p7~0); {303254#true} is VALID [2020-07-11 01:08:06,576 INFO L280 TraceCheckUtils]: 62: Hoare triple {303254#true} assume 0 != ~p8~0; {303254#true} is VALID [2020-07-11 01:08:06,577 INFO L280 TraceCheckUtils]: 63: Hoare triple {303254#true} ~lk8~0 := 1; {303258#(= 1 main_~lk8~0)} is VALID [2020-07-11 01:08:06,577 INFO L280 TraceCheckUtils]: 64: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p9~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-11 01:08:06,577 INFO L280 TraceCheckUtils]: 65: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p1~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-11 01:08:06,578 INFO L280 TraceCheckUtils]: 66: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p2~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-11 01:08:06,578 INFO L280 TraceCheckUtils]: 67: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p3~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-11 01:08:06,579 INFO L280 TraceCheckUtils]: 68: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p4~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-11 01:08:06,579 INFO L280 TraceCheckUtils]: 69: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p5~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-11 01:08:06,580 INFO L280 TraceCheckUtils]: 70: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p6~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-11 01:08:06,580 INFO L280 TraceCheckUtils]: 71: Hoare triple {303258#(= 1 main_~lk8~0)} assume !(0 != ~p7~0); {303258#(= 1 main_~lk8~0)} is VALID [2020-07-11 01:08:06,581 INFO L280 TraceCheckUtils]: 72: Hoare triple {303258#(= 1 main_~lk8~0)} assume 0 != ~p8~0; {303258#(= 1 main_~lk8~0)} is VALID [2020-07-11 01:08:06,581 INFO L280 TraceCheckUtils]: 73: Hoare triple {303258#(= 1 main_~lk8~0)} assume 1 != ~lk8~0; {303255#false} is VALID [2020-07-11 01:08:06,581 INFO L280 TraceCheckUtils]: 74: Hoare triple {303255#false} assume !false; {303255#false} is VALID [2020-07-11 01:08:06,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:08:06,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915371121] [2020-07-11 01:08:06,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:08:06,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:08:06,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322132105] [2020-07-11 01:08:06,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-11 01:08:06,589 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:08:06,589 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:08:06,655 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:06,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:08:06,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:08:06,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:08:06,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:08:06,656 INFO L87 Difference]: Start difference. First operand 12075 states and 15018 transitions. Second operand 3 states. [2020-07-11 01:09:04,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:04,548 INFO L93 Difference]: Finished difference Result 14127 states and 17324 transitions. [2020-07-11 01:09:04,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:09:04,549 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-11 01:09:04,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:09:04,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:09:04,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2020-07-11 01:09:04,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:09:04,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2020-07-11 01:09:04,553 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 173 transitions. [2020-07-11 01:09:04,711 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:12,525 INFO L225 Difference]: With dead ends: 14127 [2020-07-11 01:09:12,525 INFO L226 Difference]: Without dead ends: 14125 [2020-07-11 01:09:12,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:09:12,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14125 states. [2020-07-11 01:09:55,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14125 to 12075. [2020-07-11 01:09:55,368 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:09:55,368 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14125 states. Second operand 12075 states. [2020-07-11 01:09:55,368 INFO L74 IsIncluded]: Start isIncluded. First operand 14125 states. Second operand 12075 states. [2020-07-11 01:09:55,369 INFO L87 Difference]: Start difference. First operand 14125 states. Second operand 12075 states. [2020-07-11 01:10:03,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:10:03,014 INFO L93 Difference]: Finished difference Result 14125 states and 17195 transitions. [2020-07-11 01:10:03,014 INFO L276 IsEmpty]: Start isEmpty. Operand 14125 states and 17195 transitions. [2020-07-11 01:10:03,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:10:03,028 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:10:03,028 INFO L74 IsIncluded]: Start isIncluded. First operand 12075 states. Second operand 14125 states. [2020-07-11 01:10:03,028 INFO L87 Difference]: Start difference. First operand 12075 states. Second operand 14125 states. [2020-07-11 01:10:11,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:10:11,332 INFO L93 Difference]: Finished difference Result 14125 states and 17195 transitions. [2020-07-11 01:10:11,332 INFO L276 IsEmpty]: Start isEmpty. Operand 14125 states and 17195 transitions. [2020-07-11 01:10:11,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:10:11,342 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:10:11,342 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:10:11,342 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:10:11,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12075 states. [2020-07-11 01:10:17,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 14890 transitions. [2020-07-11 01:10:17,396 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 14890 transitions. Word has length 75 [2020-07-11 01:10:17,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:10:17,396 INFO L479 AbstractCegarLoop]: Abstraction has 12075 states and 14890 transitions. [2020-07-11 01:10:17,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:10:17,397 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12075 states and 14890 transitions. [2020-07-11 01:10:39,728 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14890 edges. 14890 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:10:39,730 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 14890 transitions. [2020-07-11 01:10:39,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-11 01:10:39,735 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:10:39,735 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] [2020-07-11 01:10:39,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-11 01:10:39,735 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:10:39,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:10:39,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1321782988, now seen corresponding path program 1 times [2020-07-11 01:10:39,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:10:39,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357781603] [2020-07-11 01:10:39,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:10:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:10:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:10:39,767 INFO L280 TraceCheckUtils]: 0: Hoare triple {383915#true} assume true; {383915#true} is VALID [2020-07-11 01:10:39,767 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {383915#true} {383915#true} #247#return; {383915#true} is VALID [2020-07-11 01:10:39,767 INFO L263 TraceCheckUtils]: 0: Hoare triple {383915#true} call ULTIMATE.init(); {383915#true} is VALID [2020-07-11 01:10:39,767 INFO L280 TraceCheckUtils]: 1: Hoare triple {383915#true} assume true; {383915#true} is VALID [2020-07-11 01:10:39,767 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {383915#true} {383915#true} #247#return; {383915#true} is VALID [2020-07-11 01:10:39,767 INFO L263 TraceCheckUtils]: 3: Hoare triple {383915#true} call #t~ret10 := main(); {383915#true} is VALID [2020-07-11 01:10:39,768 INFO L280 TraceCheckUtils]: 4: Hoare triple {383915#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {383915#true} is VALID [2020-07-11 01:10:39,768 INFO L280 TraceCheckUtils]: 5: Hoare triple {383915#true} ~p1~0 := #t~nondet0; {383915#true} is VALID [2020-07-11 01:10:39,768 INFO L280 TraceCheckUtils]: 6: Hoare triple {383915#true} havoc #t~nondet0; {383915#true} is VALID [2020-07-11 01:10:39,768 INFO L280 TraceCheckUtils]: 7: Hoare triple {383915#true} havoc ~lk1~0; {383915#true} is VALID [2020-07-11 01:10:39,768 INFO L280 TraceCheckUtils]: 8: Hoare triple {383915#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {383915#true} is VALID [2020-07-11 01:10:39,768 INFO L280 TraceCheckUtils]: 9: Hoare triple {383915#true} ~p2~0 := #t~nondet1; {383915#true} is VALID [2020-07-11 01:10:39,768 INFO L280 TraceCheckUtils]: 10: Hoare triple {383915#true} havoc #t~nondet1; {383915#true} is VALID [2020-07-11 01:10:39,769 INFO L280 TraceCheckUtils]: 11: Hoare triple {383915#true} havoc ~lk2~0; {383915#true} is VALID [2020-07-11 01:10:39,769 INFO L280 TraceCheckUtils]: 12: Hoare triple {383915#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {383915#true} is VALID [2020-07-11 01:10:39,769 INFO L280 TraceCheckUtils]: 13: Hoare triple {383915#true} ~p3~0 := #t~nondet2; {383915#true} is VALID [2020-07-11 01:10:39,769 INFO L280 TraceCheckUtils]: 14: Hoare triple {383915#true} havoc #t~nondet2; {383915#true} is VALID [2020-07-11 01:10:39,769 INFO L280 TraceCheckUtils]: 15: Hoare triple {383915#true} havoc ~lk3~0; {383915#true} is VALID [2020-07-11 01:10:39,770 INFO L280 TraceCheckUtils]: 16: Hoare triple {383915#true} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {383915#true} is VALID [2020-07-11 01:10:39,770 INFO L280 TraceCheckUtils]: 17: Hoare triple {383915#true} ~p4~0 := #t~nondet3; {383915#true} is VALID [2020-07-11 01:10:39,770 INFO L280 TraceCheckUtils]: 18: Hoare triple {383915#true} havoc #t~nondet3; {383915#true} is VALID [2020-07-11 01:10:39,770 INFO L280 TraceCheckUtils]: 19: Hoare triple {383915#true} havoc ~lk4~0; {383915#true} is VALID [2020-07-11 01:10:39,770 INFO L280 TraceCheckUtils]: 20: Hoare triple {383915#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {383915#true} is VALID [2020-07-11 01:10:39,771 INFO L280 TraceCheckUtils]: 21: Hoare triple {383915#true} ~p5~0 := #t~nondet4; {383915#true} is VALID [2020-07-11 01:10:39,771 INFO L280 TraceCheckUtils]: 22: Hoare triple {383915#true} havoc #t~nondet4; {383915#true} is VALID [2020-07-11 01:10:39,771 INFO L280 TraceCheckUtils]: 23: Hoare triple {383915#true} havoc ~lk5~0; {383915#true} is VALID [2020-07-11 01:10:39,771 INFO L280 TraceCheckUtils]: 24: Hoare triple {383915#true} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {383915#true} is VALID [2020-07-11 01:10:39,771 INFO L280 TraceCheckUtils]: 25: Hoare triple {383915#true} ~p6~0 := #t~nondet5; {383915#true} is VALID [2020-07-11 01:10:39,771 INFO L280 TraceCheckUtils]: 26: Hoare triple {383915#true} havoc #t~nondet5; {383915#true} is VALID [2020-07-11 01:10:39,771 INFO L280 TraceCheckUtils]: 27: Hoare triple {383915#true} havoc ~lk6~0; {383915#true} is VALID [2020-07-11 01:10:39,771 INFO L280 TraceCheckUtils]: 28: Hoare triple {383915#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {383915#true} is VALID [2020-07-11 01:10:39,772 INFO L280 TraceCheckUtils]: 29: Hoare triple {383915#true} ~p7~0 := #t~nondet6; {383915#true} is VALID [2020-07-11 01:10:39,772 INFO L280 TraceCheckUtils]: 30: Hoare triple {383915#true} havoc #t~nondet6; {383915#true} is VALID [2020-07-11 01:10:39,772 INFO L280 TraceCheckUtils]: 31: Hoare triple {383915#true} havoc ~lk7~0; {383915#true} is VALID [2020-07-11 01:10:39,772 INFO L280 TraceCheckUtils]: 32: Hoare triple {383915#true} assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647; {383915#true} is VALID [2020-07-11 01:10:39,772 INFO L280 TraceCheckUtils]: 33: Hoare triple {383915#true} ~p8~0 := #t~nondet7; {383915#true} is VALID [2020-07-11 01:10:39,772 INFO L280 TraceCheckUtils]: 34: Hoare triple {383915#true} havoc #t~nondet7; {383915#true} is VALID [2020-07-11 01:10:39,772 INFO L280 TraceCheckUtils]: 35: Hoare triple {383915#true} havoc ~lk8~0; {383915#true} is VALID [2020-07-11 01:10:39,772 INFO L280 TraceCheckUtils]: 36: Hoare triple {383915#true} assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647; {383915#true} is VALID [2020-07-11 01:10:39,772 INFO L280 TraceCheckUtils]: 37: Hoare triple {383915#true} ~p9~0 := #t~nondet8; {383915#true} is VALID [2020-07-11 01:10:39,773 INFO L280 TraceCheckUtils]: 38: Hoare triple {383915#true} havoc #t~nondet8; {383915#true} is VALID [2020-07-11 01:10:39,773 INFO L280 TraceCheckUtils]: 39: Hoare triple {383915#true} havoc ~lk9~0; {383915#true} is VALID [2020-07-11 01:10:39,773 INFO L280 TraceCheckUtils]: 40: Hoare triple {383915#true} havoc ~cond~0; {383915#true} is VALID [2020-07-11 01:10:39,773 INFO L280 TraceCheckUtils]: 41: Hoare triple {383915#true} assume !false; {383915#true} is VALID [2020-07-11 01:10:39,773 INFO L280 TraceCheckUtils]: 42: Hoare triple {383915#true} assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647; {383915#true} is VALID [2020-07-11 01:10:39,773 INFO L280 TraceCheckUtils]: 43: Hoare triple {383915#true} ~cond~0 := #t~nondet9; {383915#true} is VALID [2020-07-11 01:10:39,773 INFO L280 TraceCheckUtils]: 44: Hoare triple {383915#true} havoc #t~nondet9; {383915#true} is VALID [2020-07-11 01:10:39,773 INFO L280 TraceCheckUtils]: 45: Hoare triple {383915#true} assume !(0 == ~cond~0); {383915#true} is VALID [2020-07-11 01:10:39,774 INFO L280 TraceCheckUtils]: 46: Hoare triple {383915#true} ~lk1~0 := 0; {383915#true} is VALID [2020-07-11 01:10:39,774 INFO L280 TraceCheckUtils]: 47: Hoare triple {383915#true} ~lk2~0 := 0; {383915#true} is VALID [2020-07-11 01:10:39,774 INFO L280 TraceCheckUtils]: 48: Hoare triple {383915#true} ~lk3~0 := 0; {383915#true} is VALID [2020-07-11 01:10:39,774 INFO L280 TraceCheckUtils]: 49: Hoare triple {383915#true} ~lk4~0 := 0; {383915#true} is VALID [2020-07-11 01:10:39,774 INFO L280 TraceCheckUtils]: 50: Hoare triple {383915#true} ~lk5~0 := 0; {383915#true} is VALID [2020-07-11 01:10:39,774 INFO L280 TraceCheckUtils]: 51: Hoare triple {383915#true} ~lk6~0 := 0; {383915#true} is VALID [2020-07-11 01:10:39,774 INFO L280 TraceCheckUtils]: 52: Hoare triple {383915#true} ~lk7~0 := 0; {383915#true} is VALID [2020-07-11 01:10:39,774 INFO L280 TraceCheckUtils]: 53: Hoare triple {383915#true} ~lk8~0 := 0; {383915#true} is VALID [2020-07-11 01:10:39,775 INFO L280 TraceCheckUtils]: 54: Hoare triple {383915#true} ~lk9~0 := 0; {383915#true} is VALID [2020-07-11 01:10:39,775 INFO L280 TraceCheckUtils]: 55: Hoare triple {383915#true} assume !(0 != ~p1~0); {383915#true} is VALID [2020-07-11 01:10:39,775 INFO L280 TraceCheckUtils]: 56: Hoare triple {383915#true} assume !(0 != ~p2~0); {383915#true} is VALID [2020-07-11 01:10:39,775 INFO L280 TraceCheckUtils]: 57: Hoare triple {383915#true} assume !(0 != ~p3~0); {383915#true} is VALID [2020-07-11 01:10:39,775 INFO L280 TraceCheckUtils]: 58: Hoare triple {383915#true} assume !(0 != ~p4~0); {383915#true} is VALID [2020-07-11 01:10:39,775 INFO L280 TraceCheckUtils]: 59: Hoare triple {383915#true} assume !(0 != ~p5~0); {383915#true} is VALID [2020-07-11 01:10:39,775 INFO L280 TraceCheckUtils]: 60: Hoare triple {383915#true} assume !(0 != ~p6~0); {383915#true} is VALID [2020-07-11 01:10:39,775 INFO L280 TraceCheckUtils]: 61: Hoare triple {383915#true} assume !(0 != ~p7~0); {383915#true} is VALID [2020-07-11 01:10:39,776 INFO L280 TraceCheckUtils]: 62: Hoare triple {383915#true} assume !(0 != ~p8~0); {383915#true} is VALID [2020-07-11 01:10:39,776 INFO L280 TraceCheckUtils]: 63: Hoare triple {383915#true} assume !(0 != ~p9~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-11 01:10:39,776 INFO L280 TraceCheckUtils]: 64: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p1~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-11 01:10:39,777 INFO L280 TraceCheckUtils]: 65: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p2~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-11 01:10:39,777 INFO L280 TraceCheckUtils]: 66: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p3~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-11 01:10:39,777 INFO L280 TraceCheckUtils]: 67: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p4~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-11 01:10:39,778 INFO L280 TraceCheckUtils]: 68: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p5~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-11 01:10:39,778 INFO L280 TraceCheckUtils]: 69: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p6~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-11 01:10:39,778 INFO L280 TraceCheckUtils]: 70: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p7~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-11 01:10:39,779 INFO L280 TraceCheckUtils]: 71: Hoare triple {383919#(= 0 main_~p9~0)} assume !(0 != ~p8~0); {383919#(= 0 main_~p9~0)} is VALID [2020-07-11 01:10:39,779 INFO L280 TraceCheckUtils]: 72: Hoare triple {383919#(= 0 main_~p9~0)} assume 0 != ~p9~0; {383916#false} is VALID [2020-07-11 01:10:39,779 INFO L280 TraceCheckUtils]: 73: Hoare triple {383916#false} assume 1 != ~lk9~0; {383916#false} is VALID [2020-07-11 01:10:39,780 INFO L280 TraceCheckUtils]: 74: Hoare triple {383916#false} assume !false; {383916#false} is VALID [2020-07-11 01:10:39,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:10:39,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357781603] [2020-07-11 01:10:39,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:10:39,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:10:39,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304594557] [2020-07-11 01:10:39,783 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-11 01:10:39,783 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:10:39,784 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:10:39,853 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:10:39,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:10:39,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:10:39,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:10:39,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:10:39,854 INFO L87 Difference]: Start difference. First operand 12075 states and 14890 transitions. Second operand 3 states.