java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/heap-data/calendar.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 03:52:06,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 03:52:06,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 03:52:06,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 03:52:06,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 03:52:06,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 03:52:06,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 03:52:06,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 03:52:06,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 03:52:06,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 03:52:06,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 03:52:06,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 03:52:06,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 03:52:06,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 03:52:06,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 03:52:06,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 03:52:06,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 03:52:06,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 03:52:06,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 03:52:06,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 03:52:06,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 03:52:06,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 03:52:06,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 03:52:06,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 03:52:06,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 03:52:06,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 03:52:06,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 03:52:06,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 03:52:06,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 03:52:06,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 03:52:06,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 03:52:06,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 03:52:06,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 03:52:06,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 03:52:06,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 03:52:06,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 03:52:06,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 03:52:06,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 03:52:06,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 03:52:06,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 03:52:06,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 03:52:06,557 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 03:52:06,582 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 03:52:06,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 03:52:06,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 03:52:06,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 03:52:06,584 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 03:52:06,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 03:52:06,587 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 03:52:06,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 03:52:06,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 03:52:06,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 03:52:06,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 03:52:06,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 03:52:06,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 03:52:06,588 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 03:52:06,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 03:52:06,588 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 03:52:06,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 03:52:06,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 03:52:06,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 03:52:06,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 03:52:06,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 03:52:06,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 03:52:06,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 03:52:06,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 03:52:06,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 03:52:06,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 03:52:06,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 03:52:06,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 03:52:06,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 03:52:06,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 03:52:06,936 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 03:52:06,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 03:52:06,942 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 03:52:06,942 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 03:52:06,943 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/calendar.i [2019-10-07 03:52:07,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abe8392f7/1516af7d241d4b11b0e5d03777e9aff6/FLAG71a03493c [2019-10-07 03:52:07,545 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 03:52:07,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/calendar.i [2019-10-07 03:52:07,558 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abe8392f7/1516af7d241d4b11b0e5d03777e9aff6/FLAG71a03493c [2019-10-07 03:52:07,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abe8392f7/1516af7d241d4b11b0e5d03777e9aff6 [2019-10-07 03:52:07,839 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 03:52:07,841 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 03:52:07,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 03:52:07,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 03:52:07,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 03:52:07,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:52:07" (1/1) ... [2019-10-07 03:52:07,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65566acb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:07, skipping insertion in model container [2019-10-07 03:52:07,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:52:07" (1/1) ... [2019-10-07 03:52:07,858 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 03:52:07,900 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 03:52:08,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 03:52:08,404 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 03:52:08,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 03:52:08,519 INFO L192 MainTranslator]: Completed translation [2019-10-07 03:52:08,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:08 WrapperNode [2019-10-07 03:52:08,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 03:52:08,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 03:52:08,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 03:52:08,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 03:52:08,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:08" (1/1) ... [2019-10-07 03:52:08,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:08" (1/1) ... [2019-10-07 03:52:08,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:08" (1/1) ... [2019-10-07 03:52:08,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:08" (1/1) ... [2019-10-07 03:52:08,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:08" (1/1) ... [2019-10-07 03:52:08,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:08" (1/1) ... [2019-10-07 03:52:08,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:08" (1/1) ... [2019-10-07 03:52:08,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 03:52:08,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 03:52:08,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 03:52:08,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 03:52:08,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:08" (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 [2019-10-07 03:52:08,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 03:52:08,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 03:52:08,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-07 03:52:08,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-07 03:52:08,643 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 03:52:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 03:52:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 03:52:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-07 03:52:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-07 03:52:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-07 03:52:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-07 03:52:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-07 03:52:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-07 03:52:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-07 03:52:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-07 03:52:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-07 03:52:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-07 03:52:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-07 03:52:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-07 03:52:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-07 03:52:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-07 03:52:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-07 03:52:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-07 03:52:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-07 03:52:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-07 03:52:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-07 03:52:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-07 03:52:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-07 03:52:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-07 03:52:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-07 03:52:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-07 03:52:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-07 03:52:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-07 03:52:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-07 03:52:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-07 03:52:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-07 03:52:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-07 03:52:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-07 03:52:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-07 03:52:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-07 03:52:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-07 03:52:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-07 03:52:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-07 03:52:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-07 03:52:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-07 03:52:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-07 03:52:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-07 03:52:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-07 03:52:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-07 03:52:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-07 03:52:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-07 03:52:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-07 03:52:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-07 03:52:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-07 03:52:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-07 03:52:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-07 03:52:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-07 03:52:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-07 03:52:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-07 03:52:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 03:52:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 03:52:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-07 03:52:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 03:52:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-07 03:52:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-07 03:52:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-07 03:52:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-07 03:52:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-07 03:52:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-07 03:52:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-07 03:52:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-07 03:52:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-07 03:52:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 03:52:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-07 03:52:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-07 03:52:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-07 03:52:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-07 03:52:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-07 03:52:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-07 03:52:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-07 03:52:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-07 03:52:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-07 03:52:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-07 03:52:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-07 03:52:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-07 03:52:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-07 03:52:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-07 03:52:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-07 03:52:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-07 03:52:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-07 03:52:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-07 03:52:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-07 03:52:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-07 03:52:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-07 03:52:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-07 03:52:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-07 03:52:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-07 03:52:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-07 03:52:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-07 03:52:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-07 03:52:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-07 03:52:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-07 03:52:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-07 03:52:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-07 03:52:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-07 03:52:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-07 03:52:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-07 03:52:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-07 03:52:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-07 03:52:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-07 03:52:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-07 03:52:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-07 03:52:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 03:52:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 03:52:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 03:52:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 03:52:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 03:52:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 03:52:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 03:52:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 03:52:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 03:52:09,277 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 03:52:09,278 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-07 03:52:09,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:52:09 BoogieIcfgContainer [2019-10-07 03:52:09,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 03:52:09,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 03:52:09,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 03:52:09,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 03:52:09,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:52:07" (1/3) ... [2019-10-07 03:52:09,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f3a131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:52:09, skipping insertion in model container [2019-10-07 03:52:09,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:08" (2/3) ... [2019-10-07 03:52:09,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f3a131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:52:09, skipping insertion in model container [2019-10-07 03:52:09,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:52:09" (3/3) ... [2019-10-07 03:52:09,288 INFO L109 eAbstractionObserver]: Analyzing ICFG calendar.i [2019-10-07 03:52:09,299 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 03:52:09,308 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 03:52:09,320 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 03:52:09,347 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 03:52:09,347 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 03:52:09,347 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 03:52:09,348 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 03:52:09,350 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 03:52:09,351 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 03:52:09,351 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 03:52:09,359 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 03:52:09,383 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-07 03:52:09,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-07 03:52:09,391 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:52:09,392 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:52:09,394 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:52:09,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:52:09,402 INFO L82 PathProgramCache]: Analyzing trace with hash -716872195, now seen corresponding path program 1 times [2019-10-07 03:52:09,412 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:52:09,412 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:09,413 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:09,413 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:09,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:52:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:52:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:52:09,558 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:09,558 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:52:09,559 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 03:52:09,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 03:52:09,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 03:52:09,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 03:52:09,582 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-10-07 03:52:09,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:52:09,609 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2019-10-07 03:52:09,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 03:52:09,612 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-07 03:52:09,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:52:09,629 INFO L225 Difference]: With dead ends: 28 [2019-10-07 03:52:09,629 INFO L226 Difference]: Without dead ends: 16 [2019-10-07 03:52:09,636 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 03:52:09,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-07 03:52:09,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-07 03:52:09,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-07 03:52:09,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-10-07 03:52:09,700 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-10-07 03:52:09,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:52:09,701 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-10-07 03:52:09,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 03:52:09,701 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-10-07 03:52:09,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-07 03:52:09,703 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:52:09,703 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:52:09,703 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:52:09,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:52:09,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1133366258, now seen corresponding path program 1 times [2019-10-07 03:52:09,706 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:52:09,706 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:09,706 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:09,707 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:09,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:52:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:52:09,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:52:09,885 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:09,885 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:52:09,886 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 03:52:09,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 03:52:09,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 03:52:09,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 03:52:09,888 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-10-07 03:52:09,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:52:09,961 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2019-10-07 03:52:09,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 03:52:09,961 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-10-07 03:52:09,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:52:09,963 INFO L225 Difference]: With dead ends: 28 [2019-10-07 03:52:09,963 INFO L226 Difference]: Without dead ends: 21 [2019-10-07 03:52:09,964 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 03:52:09,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-07 03:52:09,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-07 03:52:09,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-07 03:52:09,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2019-10-07 03:52:09,970 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 12 [2019-10-07 03:52:09,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:52:09,970 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2019-10-07 03:52:09,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 03:52:09,971 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2019-10-07 03:52:09,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-07 03:52:09,971 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:52:09,972 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:52:09,972 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:52:09,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:52:09,972 INFO L82 PathProgramCache]: Analyzing trace with hash 306471032, now seen corresponding path program 1 times [2019-10-07 03:52:09,973 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:52:09,973 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:09,973 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:09,973 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:09,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:52:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:52:10,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:52:10,257 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:10,258 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:52:10,258 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 03:52:10,258 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 03:52:10,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 03:52:10,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 03:52:10,259 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand 5 states. [2019-10-07 03:52:10,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:52:10,421 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2019-10-07 03:52:10,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 03:52:10,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-10-07 03:52:10,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:52:10,423 INFO L225 Difference]: With dead ends: 26 [2019-10-07 03:52:10,423 INFO L226 Difference]: Without dead ends: 24 [2019-10-07 03:52:10,423 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 03:52:10,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-07 03:52:10,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2019-10-07 03:52:10,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-07 03:52:10,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2019-10-07 03:52:10,437 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 17 [2019-10-07 03:52:10,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:52:10,437 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2019-10-07 03:52:10,437 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 03:52:10,438 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2019-10-07 03:52:10,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-07 03:52:10,440 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:52:10,440 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:52:10,440 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:52:10,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:52:10,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1018023612, now seen corresponding path program 1 times [2019-10-07 03:52:10,450 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:52:10,450 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:10,450 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:10,451 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:10,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:52:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:52:10,612 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:52:10,613 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:10,613 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:52:10,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:52:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:52:10,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-07 03:52:10,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:52:10,854 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-07 03:52:10,855 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 03:52:10,864 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:52:10,869 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-07 03:52:10,869 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-07 03:52:10,875 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:52:10,876 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 03:52:10,876 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2019-10-07 03:52:10,890 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-07 03:52:10,890 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 03:52:10,900 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:52:10,905 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-07 03:52:10,906 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-07 03:52:10,912 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:52:10,913 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 03:52:10,913 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2019-10-07 03:52:10,916 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:52:10,917 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:52:10,936 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:52:10,936 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 03:52:10,964 INFO L162 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-10-07 03:52:10,965 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 03:52:10,972 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 03:52:10,981 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 03:52:10,981 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 03:52:11,125 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 03:52:15,596 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 335 [2019-10-07 03:52:31,592 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 386 [2019-10-07 03:52:52,693 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 395 [2019-10-07 03:53:09,311 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 410 [2019-10-07 03:53:26,064 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-07 03:53:26,098 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-07 03:53:26,779 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-07 03:53:26,783 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 03:53:26,783 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 03:53:26,784 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 302#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 03:53:26,784 INFO L193 IcfgInterpreter]: Reachable states at location L567 satisfy 284#(and (<= main_~ev1~0 2147483647) (<= 0 (+ main_~ev2~0 2147483648)) (<= main_~ev2~0 2147483647) (<= 0 (+ main_~ev1~0 2147483648))) [2019-10-07 03:53:26,784 INFO L193 IcfgInterpreter]: Reachable states at location L578-10 satisfy 264#true [2019-10-07 03:53:26,784 INFO L193 IcfgInterpreter]: Reachable states at location L579 satisfy 274#true [2019-10-07 03:53:26,785 INFO L193 IcfgInterpreter]: Reachable states at location L569 satisfy 289#(and (<= main_~ev1~0 2147483647) (<= 0 main_~ev2~0) (<= 0 (+ main_~ev2~0 2147483648)) (<= main_~ev2~0 3) (<= main_~ev2~0 2147483647) (not (< main_~ev2~0 0)) (not (< 3 main_~ev2~0)) (not (< main_~ev1~0 0)) (not (< 3 main_~ev1~0)) (<= main_~ev1~0 3) (<= 0 main_~ev1~0) (<= 0 (+ main_~ev1~0 2147483648))) [2019-10-07 03:53:26,785 INFO L193 IcfgInterpreter]: Reachable states at location L570 satisfy 88#true [2019-10-07 03:53:26,785 INFO L193 IcfgInterpreter]: Reachable states at location L578-8 satisfy 259#true [2019-10-07 03:53:26,785 INFO L193 IcfgInterpreter]: Reachable states at location L564-4 satisfy 98#true [2019-10-07 03:53:26,785 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 03:53:26,786 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2019-10-07 03:53:26,786 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 307#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 03:53:26,788 INFO L193 IcfgInterpreter]: Reachable states at location L564-3 satisfy 298#(and (<= main_~l~0.offset 0) (<= 0 main_~l~0.offset)) [2019-10-07 03:53:26,792 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 03:53:26,792 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 279#true [2019-10-07 03:53:26,793 INFO L193 IcfgInterpreter]: Reachable states at location L564-1 satisfy 93#(and (<= 0 (+ |main_#t~nondet2| 2147483648)) (<= |main_#t~nondet2| 2147483647)) [2019-10-07 03:53:26,793 INFO L193 IcfgInterpreter]: Reachable states at location L577-2 satisfy 269#(or (exists ((v_main_~i~0.offset_26 Int) (v_main_~i~0.base_26 Int)) (and (= main_~i~0.base (select (select |#memory_$Pointer$.base| v_main_~i~0.base_26) v_main_~i~0.offset_26)) (= (select (select |#memory_$Pointer$.offset| v_main_~i~0.base_26) v_main_~i~0.offset_26) main_~i~0.offset))) (and (= main_~i~0.base main_~l~0.base) (= main_~l~0.offset main_~i~0.offset))) [2019-10-07 03:53:27,021 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 03:53:27,021 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 10] total 15 [2019-10-07 03:53:27,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-07 03:53:27,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-07 03:53:27,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2019-10-07 03:53:27,024 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand 15 states. [2019-10-07 03:53:28,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:53:28,502 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2019-10-07 03:53:28,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-07 03:53:28,502 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 20 [2019-10-07 03:53:28,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:53:28,503 INFO L225 Difference]: With dead ends: 59 [2019-10-07 03:53:28,504 INFO L226 Difference]: Without dead ends: 44 [2019-10-07 03:53:28,505 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=264, Invalid=996, Unknown=0, NotChecked=0, Total=1260 [2019-10-07 03:53:28,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-10-07 03:53:28,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2019-10-07 03:53:28,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-07 03:53:28,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2019-10-07 03:53:28,513 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 20 [2019-10-07 03:53:28,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:53:28,514 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-10-07 03:53:28,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-07 03:53:28,514 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2019-10-07 03:53:28,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-07 03:53:28,515 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:53:28,515 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:53:28,723 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:53:28,724 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:53:28,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:53:28,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1317950382, now seen corresponding path program 2 times [2019-10-07 03:53:28,724 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:53:28,724 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:53:28,724 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:53:28,724 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:53:28,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:53:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:53:28,943 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:53:28,943 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:53:28,943 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:53:28,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:53:29,076 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-07 03:53:29,076 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 03:53:29,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 44 conjunts are in the unsatisfiable core [2019-10-07 03:53:29,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:53:29,914 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:53:29,914 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:53:30,109 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:53:30,109 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 03:53:30,110 INFO L162 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-10-07 03:53:30,111 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 03:53:30,111 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 03:53:30,111 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 03:53:30,111 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 03:53:30,150 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 03:53:33,987 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 335 [2019-10-07 03:53:46,618 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 386 [2019-10-07 03:54:50,392 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-07 03:54:50,421 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-07 03:54:51,556 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-07 03:54:51,561 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 03:54:51,561 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 03:54:51,561 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 302#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 03:54:51,562 INFO L193 IcfgInterpreter]: Reachable states at location L567 satisfy 284#(and (<= main_~ev1~0 2147483647) (<= 0 (+ main_~ev2~0 2147483648)) (<= main_~ev2~0 2147483647) (<= 0 (+ main_~ev1~0 2147483648))) [2019-10-07 03:54:51,562 INFO L193 IcfgInterpreter]: Reachable states at location L578-10 satisfy 264#true [2019-10-07 03:54:51,562 INFO L193 IcfgInterpreter]: Reachable states at location L579 satisfy 274#true [2019-10-07 03:54:51,563 INFO L193 IcfgInterpreter]: Reachable states at location L569 satisfy 289#(and (<= main_~ev1~0 2147483647) (<= 0 main_~ev2~0) (<= 0 (+ main_~ev2~0 2147483648)) (<= main_~ev2~0 3) (<= main_~ev2~0 2147483647) (not (< main_~ev2~0 0)) (not (< 3 main_~ev2~0)) (not (< main_~ev1~0 0)) (not (< 3 main_~ev1~0)) (<= main_~ev1~0 3) (<= 0 main_~ev1~0) (<= 0 (+ main_~ev1~0 2147483648))) [2019-10-07 03:54:51,563 INFO L193 IcfgInterpreter]: Reachable states at location L570 satisfy 88#true [2019-10-07 03:54:51,563 INFO L193 IcfgInterpreter]: Reachable states at location L578-8 satisfy 259#true [2019-10-07 03:54:51,564 INFO L193 IcfgInterpreter]: Reachable states at location L564-4 satisfy 98#true [2019-10-07 03:54:51,564 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 03:54:51,564 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2019-10-07 03:54:51,565 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 307#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 03:54:51,565 INFO L193 IcfgInterpreter]: Reachable states at location L564-3 satisfy 298#(and (<= main_~l~0.offset 0) (<= 0 main_~l~0.offset)) [2019-10-07 03:54:51,568 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 279#true [2019-10-07 03:54:51,569 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 03:54:51,569 INFO L193 IcfgInterpreter]: Reachable states at location L564-1 satisfy 93#(and (<= 0 (+ |main_#t~nondet2| 2147483648)) (<= |main_#t~nondet2| 2147483647)) [2019-10-07 03:54:51,570 INFO L193 IcfgInterpreter]: Reachable states at location L577-2 satisfy 269#(or (exists ((v_main_~i~0.offset_32 Int) (v_main_~i~0.base_32 Int)) (and (= main_~i~0.offset (select (select |#memory_$Pointer$.offset| v_main_~i~0.base_32) v_main_~i~0.offset_32)) (= (select (select |#memory_$Pointer$.base| v_main_~i~0.base_32) v_main_~i~0.offset_32) main_~i~0.base))) (and (= main_~i~0.base main_~l~0.base) (= main_~l~0.offset main_~i~0.offset))) [2019-10-07 03:54:51,917 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 03:54:51,917 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 10] total 22 [2019-10-07 03:54:51,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-07 03:54:51,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-07 03:54:51,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2019-10-07 03:54:51,918 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 22 states. [2019-10-07 03:54:53,030 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2019-10-07 03:54:53,236 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2019-10-07 03:54:53,430 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2019-10-07 03:54:53,763 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2019-10-07 03:54:54,119 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2019-10-07 03:54:54,304 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2019-10-07 03:54:54,646 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2019-10-07 03:54:54,978 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2019-10-07 03:54:55,227 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2019-10-07 03:54:55,555 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2019-10-07 03:54:55,794 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 80 [2019-10-07 03:54:56,065 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2019-10-07 03:54:56,327 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2019-10-07 03:54:56,574 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2019-10-07 03:54:56,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:54:56,584 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2019-10-07 03:54:56,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-10-07 03:54:56,585 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 25 [2019-10-07 03:54:56,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:54:56,587 INFO L225 Difference]: With dead ends: 54 [2019-10-07 03:54:56,587 INFO L226 Difference]: Without dead ends: 52 [2019-10-07 03:54:56,588 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=434, Invalid=1728, Unknown=0, NotChecked=0, Total=2162 [2019-10-07 03:54:56,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-10-07 03:54:56,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 31. [2019-10-07 03:54:56,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-07 03:54:56,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2019-10-07 03:54:56,596 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 25 [2019-10-07 03:54:56,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:54:56,597 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2019-10-07 03:54:56,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-07 03:54:56,597 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2019-10-07 03:54:56,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-07 03:54:56,598 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:54:56,598 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:54:56,812 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:54:56,812 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:54:56,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:54:56,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1527256498, now seen corresponding path program 3 times [2019-10-07 03:54:56,813 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:54:56,813 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:56,813 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:56,814 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:56,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:54:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:54:56,948 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:54:56,949 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:56,949 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:54:56,949 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:54:57,084 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-07 03:54:57,085 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 03:54:57,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 55 conjunts are in the unsatisfiable core [2019-10-07 03:54:57,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:54:57,986 WARN L191 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-10-07 03:54:58,186 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-07 03:54:58,647 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 127 [2019-10-07 03:54:59,122 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2019-10-07 03:54:59,172 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:54:59,172 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:55:00,048 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-10-07 03:55:00,303 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-10-07 03:55:00,762 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-10-07 03:55:01,084 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:55:01,085 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 03:55:01,086 INFO L162 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-10-07 03:55:01,086 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 03:55:01,087 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 03:55:01,087 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 03:55:01,087 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 03:55:01,127 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 03:56:18,522 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-07 03:56:18,534 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-07 03:56:19,169 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-07 03:56:19,171 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 03:56:19,171 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 03:56:19,171 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 302#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 03:56:19,171 INFO L193 IcfgInterpreter]: Reachable states at location L567 satisfy 284#(and (<= main_~ev1~0 2147483647) (<= 0 (+ main_~ev2~0 2147483648)) (<= main_~ev2~0 2147483647) (<= 0 (+ main_~ev1~0 2147483648))) [2019-10-07 03:56:19,172 INFO L193 IcfgInterpreter]: Reachable states at location L578-10 satisfy 264#true [2019-10-07 03:56:19,172 INFO L193 IcfgInterpreter]: Reachable states at location L579 satisfy 274#true [2019-10-07 03:56:19,172 INFO L193 IcfgInterpreter]: Reachable states at location L569 satisfy 289#(and (<= main_~ev1~0 2147483647) (<= 0 main_~ev2~0) (<= 0 (+ main_~ev2~0 2147483648)) (<= main_~ev2~0 3) (<= main_~ev2~0 2147483647) (not (< main_~ev2~0 0)) (not (< 3 main_~ev2~0)) (not (< main_~ev1~0 0)) (not (< 3 main_~ev1~0)) (<= main_~ev1~0 3) (<= 0 main_~ev1~0) (<= 0 (+ main_~ev1~0 2147483648))) [2019-10-07 03:56:19,172 INFO L193 IcfgInterpreter]: Reachable states at location L570 satisfy 88#true [2019-10-07 03:56:19,172 INFO L193 IcfgInterpreter]: Reachable states at location L578-8 satisfy 259#true [2019-10-07 03:56:19,172 INFO L193 IcfgInterpreter]: Reachable states at location L564-4 satisfy 98#true [2019-10-07 03:56:19,173 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 03:56:19,173 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2019-10-07 03:56:19,173 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 307#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 03:56:19,173 INFO L193 IcfgInterpreter]: Reachable states at location L564-3 satisfy 298#(and (<= main_~l~0.offset 0) (<= 0 main_~l~0.offset)) [2019-10-07 03:56:19,173 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 279#true [2019-10-07 03:56:19,173 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 03:56:19,173 INFO L193 IcfgInterpreter]: Reachable states at location L564-1 satisfy 93#(and (<= 0 (+ |main_#t~nondet2| 2147483648)) (<= |main_#t~nondet2| 2147483647)) [2019-10-07 03:56:19,174 INFO L193 IcfgInterpreter]: Reachable states at location L577-2 satisfy 269#(or (exists ((v_main_~i~0.base_40 Int) (v_main_~i~0.offset_40 Int)) (and (= (select (select |#memory_$Pointer$.offset| v_main_~i~0.base_40) v_main_~i~0.offset_40) main_~i~0.offset) (= (select (select |#memory_$Pointer$.base| v_main_~i~0.base_40) v_main_~i~0.offset_40) main_~i~0.base))) (and (= main_~i~0.base main_~l~0.base) (= main_~l~0.offset main_~i~0.offset))) [2019-10-07 03:56:19,583 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 03:56:19,583 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11, 10] total 32 [2019-10-07 03:56:19,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-10-07 03:56:19,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-10-07 03:56:19,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=900, Unknown=0, NotChecked=0, Total=992 [2019-10-07 03:56:19,586 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 32 states. [2019-10-07 03:56:21,286 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2019-10-07 03:56:21,812 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-10-07 03:56:21,978 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 65 [2019-10-07 03:56:22,404 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2019-10-07 03:56:22,824 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 106 [2019-10-07 03:56:23,107 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2019-10-07 03:56:23,273 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2019-10-07 03:56:23,713 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 82 [2019-10-07 03:56:24,039 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 110 [2019-10-07 03:56:24,304 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 75 [2019-10-07 03:56:24,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:56:24,320 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2019-10-07 03:56:24,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-10-07 03:56:24,322 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 28 [2019-10-07 03:56:24,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:56:24,323 INFO L225 Difference]: With dead ends: 78 [2019-10-07 03:56:24,323 INFO L226 Difference]: Without dead ends: 57 [2019-10-07 03:56:24,325 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=529, Invalid=3377, Unknown=0, NotChecked=0, Total=3906 [2019-10-07 03:56:24,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-07 03:56:24,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 36. [2019-10-07 03:56:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-07 03:56:24,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2019-10-07 03:56:24,334 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 28 [2019-10-07 03:56:24,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:56:24,334 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2019-10-07 03:56:24,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-10-07 03:56:24,334 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2019-10-07 03:56:24,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-07 03:56:24,335 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:56:24,335 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:56:24,539 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:56:24,540 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:56:24,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:56:24,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1354235208, now seen corresponding path program 4 times [2019-10-07 03:56:24,541 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:56:24,541 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:56:24,541 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:56:24,541 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:56:24,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:56:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:56:24,919 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:56:24,919 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:56:24,919 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:56:24,920 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:56:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:56:25,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 60 conjunts are in the unsatisfiable core [2019-10-07 03:56:25,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:56:25,581 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-10-07 03:56:26,294 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-10-07 03:56:26,523 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-10-07 03:56:26,705 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-10-07 03:56:26,916 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-10-07 03:56:27,060 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-10-07 03:56:27,896 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:56:27,896 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:56:28,212 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-10-07 03:56:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:56:29,000 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 03:56:29,002 INFO L162 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-10-07 03:56:29,002 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 03:56:29,002 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 03:56:29,003 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 03:56:29,003 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 03:56:29,022 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 03:57:45,455 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-07 03:57:45,464 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-07 03:57:46,162 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-07 03:57:46,165 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 03:57:46,165 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 03:57:46,165 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 302#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 03:57:46,165 INFO L193 IcfgInterpreter]: Reachable states at location L567 satisfy 284#(and (<= main_~ev1~0 2147483647) (<= 0 (+ main_~ev2~0 2147483648)) (<= main_~ev2~0 2147483647) (<= 0 (+ main_~ev1~0 2147483648))) [2019-10-07 03:57:46,166 INFO L193 IcfgInterpreter]: Reachable states at location L578-10 satisfy 264#true [2019-10-07 03:57:46,166 INFO L193 IcfgInterpreter]: Reachable states at location L579 satisfy 274#true [2019-10-07 03:57:46,166 INFO L193 IcfgInterpreter]: Reachable states at location L569 satisfy 289#(and (<= main_~ev1~0 2147483647) (<= 0 main_~ev2~0) (<= 0 (+ main_~ev2~0 2147483648)) (<= main_~ev2~0 3) (<= main_~ev2~0 2147483647) (not (< main_~ev2~0 0)) (not (< 3 main_~ev2~0)) (not (< main_~ev1~0 0)) (not (< 3 main_~ev1~0)) (<= main_~ev1~0 3) (<= 0 main_~ev1~0) (<= 0 (+ main_~ev1~0 2147483648))) [2019-10-07 03:57:46,166 INFO L193 IcfgInterpreter]: Reachable states at location L570 satisfy 88#true [2019-10-07 03:57:46,166 INFO L193 IcfgInterpreter]: Reachable states at location L578-8 satisfy 259#true [2019-10-07 03:57:46,167 INFO L193 IcfgInterpreter]: Reachable states at location L564-4 satisfy 98#true [2019-10-07 03:57:46,167 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 03:57:46,167 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2019-10-07 03:57:46,167 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 307#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 03:57:46,167 INFO L193 IcfgInterpreter]: Reachable states at location L564-3 satisfy 298#(and (<= main_~l~0.offset 0) (<= 0 main_~l~0.offset)) [2019-10-07 03:57:46,168 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 279#true [2019-10-07 03:57:46,168 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 03:57:46,168 INFO L193 IcfgInterpreter]: Reachable states at location L564-1 satisfy 93#(and (<= 0 (+ |main_#t~nondet2| 2147483648)) (<= |main_#t~nondet2| 2147483647)) [2019-10-07 03:57:46,168 INFO L193 IcfgInterpreter]: Reachable states at location L577-2 satisfy 269#(or (exists ((v_main_~i~0.offset_48 Int) (v_main_~i~0.base_48 Int)) (and (= main_~i~0.offset (select (select |#memory_$Pointer$.offset| v_main_~i~0.base_48) v_main_~i~0.offset_48)) (= (select (select |#memory_$Pointer$.base| v_main_~i~0.base_48) v_main_~i~0.offset_48) main_~i~0.base))) (and (= main_~i~0.base main_~l~0.base) (= main_~l~0.offset main_~i~0.offset))) [2019-10-07 03:57:46,550 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 03:57:46,550 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 10] total 28 [2019-10-07 03:57:46,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 03:57:46,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 03:57:46,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2019-10-07 03:57:46,553 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand 28 states. [2019-10-07 03:57:47,840 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 66 [2019-10-07 03:57:48,038 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2019-10-07 03:57:48,231 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2019-10-07 03:57:48,475 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2019-10-07 03:57:48,805 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2019-10-07 03:57:49,105 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2019-10-07 03:57:49,402 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2019-10-07 03:57:49,914 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 158 [2019-10-07 03:57:50,492 WARN L191 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 160 [2019-10-07 03:57:50,778 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2019-10-07 03:57:51,311 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 140 [2019-10-07 03:57:51,841 WARN L191 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2019-10-07 03:57:52,237 WARN L191 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 142 [2019-10-07 03:57:52,764 WARN L191 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 164 [2019-10-07 03:57:53,199 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2019-10-07 03:57:53,592 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 144 [2019-10-07 03:57:53,956 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2019-10-07 03:57:54,356 WARN L191 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 146 [2019-10-07 03:57:54,718 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2019-10-07 03:57:55,088 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2019-10-07 03:57:55,476 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2019-10-07 03:57:55,873 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2019-10-07 03:57:55,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:57:55,887 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2019-10-07 03:57:55,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-07 03:57:55,888 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 33 [2019-10-07 03:57:55,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:57:55,890 INFO L225 Difference]: With dead ends: 67 [2019-10-07 03:57:55,890 INFO L226 Difference]: Without dead ends: 65 [2019-10-07 03:57:55,892 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 93 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=702, Invalid=2958, Unknown=0, NotChecked=0, Total=3660 [2019-10-07 03:57:55,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-10-07 03:57:55,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 39. [2019-10-07 03:57:55,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-07 03:57:55,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2019-10-07 03:57:55,902 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 33 [2019-10-07 03:57:55,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:57:55,903 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2019-10-07 03:57:55,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 03:57:55,903 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2019-10-07 03:57:55,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-07 03:57:55,904 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:57:55,904 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:57:56,105 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:57:56,106 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:57:56,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:57:56,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1389336828, now seen corresponding path program 5 times [2019-10-07 03:57:56,107 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:57:56,107 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:57:56,107 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:57:56,108 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:57:56,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:57:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:57:56,294 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:57:56,294 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:57:56,294 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:57:56,294 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:57:56,461 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-10-07 03:57:56,461 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 03:57:56,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 67 conjunts are in the unsatisfiable core [2019-10-07 03:57:56,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:57:56,682 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-10-07 03:57:57,373 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-10-07 03:57:57,758 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-10-07 03:57:57,891 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:57:57,892 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:57:58,442 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-10-07 03:58:11,965 WARN L191 SmtUtils]: Spent 12.40 s on a formula simplification. DAG size of input: 3468 DAG size of output: 20 [2019-10-07 03:58:11,983 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:58:11,983 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 03:58:11,984 INFO L162 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-10-07 03:58:11,985 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 03:58:11,985 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 03:58:11,985 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 03:58:11,986 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 03:58:12,003 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 03:59:29,338 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-07 03:59:29,347 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-07 03:59:29,925 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-07 03:59:29,927 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 03:59:29,928 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 03:59:29,928 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 302#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 03:59:29,928 INFO L193 IcfgInterpreter]: Reachable states at location L567 satisfy 284#(and (<= main_~ev1~0 2147483647) (<= 0 (+ main_~ev2~0 2147483648)) (<= main_~ev2~0 2147483647) (<= 0 (+ main_~ev1~0 2147483648))) [2019-10-07 03:59:29,928 INFO L193 IcfgInterpreter]: Reachable states at location L578-10 satisfy 264#true [2019-10-07 03:59:29,928 INFO L193 IcfgInterpreter]: Reachable states at location L579 satisfy 274#true [2019-10-07 03:59:29,929 INFO L193 IcfgInterpreter]: Reachable states at location L569 satisfy 289#(and (<= main_~ev1~0 2147483647) (<= 0 main_~ev2~0) (<= 0 (+ main_~ev2~0 2147483648)) (<= main_~ev2~0 3) (<= main_~ev2~0 2147483647) (not (< main_~ev2~0 0)) (not (< 3 main_~ev2~0)) (not (< main_~ev1~0 0)) (not (< 3 main_~ev1~0)) (<= main_~ev1~0 3) (<= 0 main_~ev1~0) (<= 0 (+ main_~ev1~0 2147483648))) [2019-10-07 03:59:29,929 INFO L193 IcfgInterpreter]: Reachable states at location L570 satisfy 88#true [2019-10-07 03:59:29,929 INFO L193 IcfgInterpreter]: Reachable states at location L578-8 satisfy 259#true [2019-10-07 03:59:29,929 INFO L193 IcfgInterpreter]: Reachable states at location L564-4 satisfy 98#true [2019-10-07 03:59:29,929 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 03:59:29,929 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2019-10-07 03:59:29,930 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 307#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 03:59:29,930 INFO L193 IcfgInterpreter]: Reachable states at location L564-3 satisfy 298#(and (<= main_~l~0.offset 0) (<= 0 main_~l~0.offset)) [2019-10-07 03:59:29,930 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 279#true [2019-10-07 03:59:29,930 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 03:59:29,930 INFO L193 IcfgInterpreter]: Reachable states at location L564-1 satisfy 93#(and (<= 0 (+ |main_#t~nondet2| 2147483648)) (<= |main_#t~nondet2| 2147483647)) [2019-10-07 03:59:29,931 INFO L193 IcfgInterpreter]: Reachable states at location L577-2 satisfy 269#(or (exists ((v_main_~i~0.offset_58 Int) (v_main_~i~0.base_58 Int)) (and (= (select (select |#memory_$Pointer$.base| v_main_~i~0.base_58) v_main_~i~0.offset_58) main_~i~0.base) (= (select (select |#memory_$Pointer$.offset| v_main_~i~0.base_58) v_main_~i~0.offset_58) main_~i~0.offset))) (and (= main_~i~0.base main_~l~0.base) (= main_~l~0.offset main_~i~0.offset))) [2019-10-07 03:59:30,303 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 03:59:30,304 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10] total 26 [2019-10-07 03:59:30,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-07 03:59:30,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-07 03:59:30,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2019-10-07 03:59:30,307 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 26 states. [2019-10-07 03:59:32,266 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2019-10-07 03:59:32,832 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-10-07 03:59:33,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:59:33,702 INFO L93 Difference]: Finished difference Result 97 states and 111 transitions. [2019-10-07 03:59:33,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-07 03:59:33,704 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 36 [2019-10-07 03:59:33,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:59:33,706 INFO L225 Difference]: With dead ends: 97 [2019-10-07 03:59:33,706 INFO L226 Difference]: Without dead ends: 70 [2019-10-07 03:59:33,708 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=466, Invalid=2956, Unknown=0, NotChecked=0, Total=3422 [2019-10-07 03:59:33,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-10-07 03:59:33,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 44. [2019-10-07 03:59:33,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-10-07 03:59:33,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2019-10-07 03:59:33,718 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 36 [2019-10-07 03:59:33,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:59:33,718 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2019-10-07 03:59:33,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-07 03:59:33,718 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2019-10-07 03:59:33,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-07 03:59:33,719 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:59:33,719 INFO L385 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:59:33,922 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:59:33,923 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:59:33,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:59:33,924 INFO L82 PathProgramCache]: Analyzing trace with hash 910062958, now seen corresponding path program 6 times [2019-10-07 03:59:33,924 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:59:33,924 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:59:33,924 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:59:33,925 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:59:33,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:59:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:59:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 18 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:59:34,312 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:59:34,312 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:59:34,312 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:59:34,501 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-07 03:59:34,501 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 03:59:34,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 99 conjunts are in the unsatisfiable core [2019-10-07 03:59:34,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:59:35,014 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-10-07 03:59:37,331 WARN L191 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 159 DAG size of output: 155 [2019-10-07 03:59:39,162 WARN L191 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2019-10-07 03:59:39,881 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-07 03:59:40,508 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2019-10-07 03:59:41,029 WARN L191 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-10-07 03:59:41,479 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-07 03:59:41,870 WARN L191 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-10-07 03:59:42,198 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-10-07 03:59:42,465 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-10-07 03:59:42,684 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-10-07 03:59:42,871 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-10-07 03:59:43,174 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2019-10-07 03:59:43,442 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2019-10-07 03:59:43,577 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-10-07 03:59:44,953 WARN L191 SmtUtils]: Spent 914.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-10-07 03:59:45,875 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-10-07 03:59:46,600 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-10-07 03:59:47,197 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-07 03:59:47,760 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-10-07 03:59:48,203 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-10-07 03:59:48,578 WARN L191 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-10-07 03:59:48,917 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-10-07 03:59:49,195 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-07 03:59:49,416 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-10-07 03:59:49,629 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-10-07 03:59:50,141 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 127 [2019-10-07 03:59:50,471 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 121 [2019-10-07 03:59:50,633 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-10-07 03:59:50,770 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2019-10-07 03:59:50,887 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-10-07 03:59:51,719 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2019-10-07 03:59:51,945 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2019-10-07 03:59:52,721 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-10-07 03:59:53,522 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 275 [2019-10-07 03:59:53,927 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-07 03:59:54,133 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-10-07 03:59:54,186 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 18 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:59:54,186 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:59:56,659 WARN L191 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 138 [2019-10-07 04:00:01,715 WARN L191 SmtUtils]: Spent 4.95 s on a formula simplification that was a NOOP. DAG size: 175 [2019-10-07 04:00:04,164 WARN L191 SmtUtils]: Spent 2.21 s on a formula simplification that was a NOOP. DAG size: 271 [2019-10-07 04:00:05,081 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2019-10-07 04:00:06,302 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 326 [2019-10-07 04:00:07,806 WARN L191 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 411 DAG size of output: 215 [2019-10-07 04:00:09,195 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 273 [2019-10-07 04:00:10,703 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 286 [2019-10-07 04:00:11,612 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 281 [2019-10-07 04:00:12,206 WARN L191 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2019-10-07 04:00:12,683 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 281 [2019-10-07 04:00:21,049 WARN L191 SmtUtils]: Spent 8.07 s on a formula simplification that was a NOOP. DAG size: 321 [2019-10-07 04:00:22,666 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 328 DAG size of output: 264 [2019-10-07 04:00:22,905 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2019-10-07 04:00:23,143 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-07 04:00:27,113 WARN L191 SmtUtils]: Spent 3.74 s on a formula simplification. DAG size of input: 221 DAG size of output: 117 [2019-10-07 04:00:27,196 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 18 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 04:00:27,197 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 04:00:27,198 INFO L162 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-10-07 04:00:27,198 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 04:00:27,199 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 04:00:27,199 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 04:00:27,199 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 04:00:27,211 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 04:01:46,464 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-07 04:01:46,472 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-07 04:01:47,048 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-07 04:01:47,050 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 04:01:47,050 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 04:01:47,050 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 302#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 04:01:47,050 INFO L193 IcfgInterpreter]: Reachable states at location L567 satisfy 284#(and (<= main_~ev1~0 2147483647) (<= 0 (+ main_~ev2~0 2147483648)) (<= main_~ev2~0 2147483647) (<= 0 (+ main_~ev1~0 2147483648))) [2019-10-07 04:01:47,051 INFO L193 IcfgInterpreter]: Reachable states at location L578-10 satisfy 264#true [2019-10-07 04:01:47,051 INFO L193 IcfgInterpreter]: Reachable states at location L579 satisfy 274#true [2019-10-07 04:01:47,051 INFO L193 IcfgInterpreter]: Reachable states at location L569 satisfy 289#(and (<= main_~ev1~0 2147483647) (<= 0 main_~ev2~0) (<= 0 (+ main_~ev2~0 2147483648)) (<= main_~ev2~0 3) (<= main_~ev2~0 2147483647) (not (< main_~ev2~0 0)) (not (< 3 main_~ev2~0)) (not (< main_~ev1~0 0)) (not (< 3 main_~ev1~0)) (<= main_~ev1~0 3) (<= 0 main_~ev1~0) (<= 0 (+ main_~ev1~0 2147483648))) [2019-10-07 04:01:47,051 INFO L193 IcfgInterpreter]: Reachable states at location L570 satisfy 88#true [2019-10-07 04:01:47,051 INFO L193 IcfgInterpreter]: Reachable states at location L578-8 satisfy 259#true [2019-10-07 04:01:47,051 INFO L193 IcfgInterpreter]: Reachable states at location L564-4 satisfy 98#true [2019-10-07 04:01:47,051 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 04:01:47,051 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2019-10-07 04:01:47,051 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 307#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 04:01:47,052 INFO L193 IcfgInterpreter]: Reachable states at location L564-3 satisfy 298#(and (<= main_~l~0.offset 0) (<= 0 main_~l~0.offset)) [2019-10-07 04:01:47,052 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 279#true [2019-10-07 04:01:47,052 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 04:01:47,052 INFO L193 IcfgInterpreter]: Reachable states at location L564-1 satisfy 93#(and (<= 0 (+ |main_#t~nondet2| 2147483648)) (<= |main_#t~nondet2| 2147483647)) [2019-10-07 04:01:47,052 INFO L193 IcfgInterpreter]: Reachable states at location L577-2 satisfy 269#(or (and (= main_~i~0.base main_~l~0.base) (= main_~l~0.offset main_~i~0.offset)) (exists ((v_main_~i~0.offset_68 Int) (v_main_~i~0.base_68 Int)) (and (= (select (select |#memory_$Pointer$.base| v_main_~i~0.base_68) v_main_~i~0.offset_68) main_~i~0.base) (= (select (select |#memory_$Pointer$.offset| v_main_~i~0.base_68) v_main_~i~0.offset_68) main_~i~0.offset)))) [2019-10-07 04:01:47,733 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 04:01:47,733 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13, 10] total 39 [2019-10-07 04:01:47,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-10-07 04:01:47,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-10-07 04:01:47,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1352, Unknown=0, NotChecked=0, Total=1482 [2019-10-07 04:01:47,736 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand 39 states. [2019-10-07 04:01:49,718 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 66 [2019-10-07 04:01:49,946 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2019-10-07 04:01:50,185 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2019-10-07 04:01:50,461 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2019-10-07 04:01:50,860 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2019-10-07 04:01:51,192 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2019-10-07 04:01:51,511 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2019-10-07 04:01:51,888 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2019-10-07 04:01:52,408 WARN L191 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 110 [2019-10-07 04:01:52,886 WARN L191 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 116 [2019-10-07 04:01:53,365 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2019-10-07 04:01:54,286 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 201 [2019-10-07 04:01:55,273 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 203 [2019-10-07 04:01:55,724 WARN L191 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 118 [2019-10-07 04:01:56,990 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 345 [2019-10-07 04:01:57,902 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 205 [2019-10-07 04:01:58,949 WARN L191 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 367 DAG size of output: 215 [2019-10-07 04:01:59,868 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 207 [2019-10-07 04:02:00,940 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 456 DAG size of output: 383 [2019-10-07 04:02:01,951 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 349 [2019-10-07 04:02:02,917 WARN L191 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 458 DAG size of output: 385 [2019-10-07 04:02:03,923 WARN L191 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 219 [2019-10-07 04:02:04,636 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 139 [2019-10-07 04:02:05,643 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 460 DAG size of output: 387 [2019-10-07 04:02:06,274 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 141 [2019-10-07 04:02:07,244 WARN L191 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 389 [2019-10-07 04:02:07,806 WARN L191 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 126 [2019-10-07 04:02:08,504 WARN L191 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 143 [2019-10-07 04:02:09,156 WARN L191 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 145 [2019-10-07 04:02:09,761 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 130 [2019-10-07 04:02:09,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 04:02:09,783 INFO L93 Difference]: Finished difference Result 80 states and 93 transitions. [2019-10-07 04:02:09,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-10-07 04:02:09,784 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 41 [2019-10-07 04:02:09,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 04:02:09,785 INFO L225 Difference]: With dead ends: 80 [2019-10-07 04:02:09,786 INFO L226 Difference]: Without dead ends: 78 [2019-10-07 04:02:09,788 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 115 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1371 ImplicationChecksByTransitivity, 36.4s TimeCoverageRelationStatistics Valid=1112, Invalid=5208, Unknown=0, NotChecked=0, Total=6320 [2019-10-07 04:02:09,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-10-07 04:02:09,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 47. [2019-10-07 04:02:09,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-07 04:02:09,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 58 transitions. [2019-10-07 04:02:09,800 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 58 transitions. Word has length 41 [2019-10-07 04:02:09,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 04:02:09,801 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 58 transitions. [2019-10-07 04:02:09,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-10-07 04:02:09,801 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2019-10-07 04:02:09,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-07 04:02:09,802 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 04:02:09,802 INFO L385 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 04:02:10,004 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 04:02:10,004 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 04:02:10,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 04:02:10,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1855942798, now seen corresponding path program 7 times [2019-10-07 04:02:10,005 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 04:02:10,005 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 04:02:10,006 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 04:02:10,006 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 04:02:10,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 04:02:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 04:02:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 04:02:10,322 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 04:02:10,322 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 04:02:10,322 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 04:02:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 04:02:10,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 122 conjunts are in the unsatisfiable core [2019-10-07 04:02:10,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 04:02:10,750 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-10-07 04:02:11,275 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-10-07 04:02:12,308 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2019-10-07 04:02:12,851 WARN L191 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-10-07 04:02:13,011 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-10-07 04:02:14,687 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 162 DAG size of output: 156 [2019-10-07 04:02:15,235 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2019-10-07 04:02:15,690 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 04:02:23,701 WARN L191 SmtUtils]: Spent 7.64 s on a formula simplification. DAG size of input: 519 DAG size of output: 501 [2019-10-07 04:02:26,078 WARN L191 SmtUtils]: Spent 1.75 s on a formula simplification that was a NOOP. DAG size: 1339 [2019-10-07 04:02:28,413 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 1614 [2019-10-07 04:02:28,802 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-07 04:02:29,649 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-07 04:02:30,454 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-07 04:02:31,340 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-07 04:02:32,223 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:33,196 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-07 04:02:33,989 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:34,848 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-07 04:02:35,642 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:36,544 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:37,520 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:38,340 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:39,139 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:40,003 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:40,791 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-07 04:02:41,482 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-07 04:02:42,422 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:43,395 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:44,368 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:45,340 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-07 04:02:46,425 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-07 04:02:47,282 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:47,959 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:48,925 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-07 04:02:49,783 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:50,654 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-10-07 04:02:51,630 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 103 [2019-10-07 04:03:06,066 WARN L191 SmtUtils]: Spent 13.39 s on a formula simplification. DAG size of input: 2840 DAG size of output: 1452 [2019-10-07 04:03:13,093 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 903 [2019-10-07 04:03:36,064 WARN L191 SmtUtils]: Spent 22.55 s on a formula simplification. DAG size of input: 774 DAG size of output: 298 [2019-10-07 04:03:36,235 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 04:03:36,235 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 04:03:37,500 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-10-07 04:03:38,635 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2019-10-07 04:03:39,120 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:03:39,411 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 81 [2019-10-07 04:03:40,033 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:03:40,487 WARN L191 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:03:41,107 WARN L191 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:03:41,579 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:03:42,208 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:03:42,542 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2019-10-07 04:03:43,171 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:03:43,662 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:03:44,151 WARN L191 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:03:44,641 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:03:45,470 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:03:45,917 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:03:46,556 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:03:47,049 WARN L191 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:03:47,735 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:03:48,605 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:03:48,977 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2019-10-07 04:03:49,441 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:03:50,287 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:03:50,732 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:03:51,195 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:03:51,855 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:03:52,680 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:03:53,389 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:03:54,290 WARN L191 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:03:54,972 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:03:55,654 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:03:56,179 WARN L191 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:03:56,671 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:03:57,550 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:03:58,241 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:03:59,138 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:00,089 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:01,116 WARN L191 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:01,898 WARN L191 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:02,454 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:04:03,185 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:03,732 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:04:04,164 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2019-10-07 04:04:05,118 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:05,714 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:04:06,673 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:07,407 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:08,150 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:08,935 WARN L191 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:09,675 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:10,226 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:04:10,959 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:11,723 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:12,468 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:13,049 WARN L191 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:04:14,008 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:14,724 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:15,693 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:16,467 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:17,456 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:18,508 WARN L191 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:19,386 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:20,250 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:20,870 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:04:21,463 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:04:22,093 WARN L191 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:04:22,864 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:23,458 WARN L191 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:04:24,042 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:04:24,706 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:04:25,329 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:04:25,875 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2019-10-07 04:04:26,507 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:04:27,167 WARN L191 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:04:27,924 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:28,397 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2019-10-07 04:04:29,162 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:29,949 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:30,565 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:04:31,376 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:32,143 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:32,720 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:04:33,502 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:34,092 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:04:34,875 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:35,549 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:04:36,339 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:37,113 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:37,579 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2019-10-07 04:04:38,350 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:39,158 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:39,785 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:04:40,588 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:41,573 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:42,370 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:43,369 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:44,243 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:45,081 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:45,916 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:46,781 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:47,855 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:48,749 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:49,588 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:50,186 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:04:51,220 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:52,001 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:52,643 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:04:53,674 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:54,478 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:55,461 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:04:56,344 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:57,165 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:57,989 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:58,816 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:04:59,933 WARN L191 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:05:00,650 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:05:01,364 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:05:02,250 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:03,161 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:04,067 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:04,758 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:05:05,324 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2019-10-07 04:05:06,221 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:07,366 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:05:08,054 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:05:08,893 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:09,638 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:05:10,330 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:05:11,197 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:11,880 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:05:12,745 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:13,459 WARN L191 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:05:14,361 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:15,654 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:05:16,902 WARN L191 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:05:18,053 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:05:18,793 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:05:19,777 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:20,592 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:05:21,408 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:05:22,425 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:23,104 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2019-10-07 04:05:23,897 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:05:24,947 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:25,949 WARN L191 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:26,982 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:28,000 WARN L191 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:28,877 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:05:29,501 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 81 [2019-10-07 04:05:30,281 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:05:31,329 WARN L191 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:32,163 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:05:32,967 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:05:33,729 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:05:35,002 WARN L191 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:05:36,085 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:36,948 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:05:38,032 WARN L191 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:39,356 WARN L191 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:05:40,467 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:41,528 WARN L191 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:42,355 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:05:43,469 WARN L191 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:44,322 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:05:45,367 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:46,456 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:47,533 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:48,454 WARN L191 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:05:49,542 WARN L191 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:50,654 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:51,747 WARN L191 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:53,077 WARN L191 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:05:53,931 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:05:55,336 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:05:56,507 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:05:57,391 WARN L191 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:05:58,309 WARN L191 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:05:59,416 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:06:00,274 WARN L191 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:06:01,139 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 115 [2019-10-07 04:06:02,232 WARN L191 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:06:02,935 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 81 [2019-10-07 04:06:04,047 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:06:05,162 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:06:06,567 WARN L191 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:06:08,000 WARN L191 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 177 [2019-10-07 04:06:08,971 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-10-07 04:06:10,111 WARN L191 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147 [2019-10-07 04:06:11,316 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 147