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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 00:11:29,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:11:29,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:11:29,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:11:29,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:11:29,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:11:29,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:11:29,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:11:29,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:11:29,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:11:29,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:11:29,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:11:29,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:11:29,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:11:29,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:11:29,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:11:29,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:11:29,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:11:29,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:11:29,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:11:29,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:11:29,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:11:29,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:11:29,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:11:29,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:11:29,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:11:29,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:11:29,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:11:29,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:11:29,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:11:29,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:11:29,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:11:29,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:11:29,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:11:29,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:11:29,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:11:29,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:11:29,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:11:29,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:11:29,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:11:29,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:11:29,323 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 [2019-10-15 00:11:29,336 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:11:29,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:11:29,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:11:29,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:11:29,338 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:11:29,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:11:29,339 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:11:29,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:11:29,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:11:29,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:11:29,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:11:29,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:11:29,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:11:29,340 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:11:29,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:11:29,340 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:11:29,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:11:29,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:11:29,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:11:29,341 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:11:29,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:11:29,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:11:29,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:11:29,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:11:29,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:11:29,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:11:29,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:11:29,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:11:29,343 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 00:11:29,618 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:11:29,632 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:11:29,635 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:11:29,637 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:11:29,637 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:11:29,638 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2019-10-15 00:11:29,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b635631/b0fc290805394e07b913e222f4323aef/FLAG817425fcd [2019-10-15 00:11:30,310 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:11:30,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2019-10-15 00:11:30,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b635631/b0fc290805394e07b913e222f4323aef/FLAG817425fcd [2019-10-15 00:11:30,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b635631/b0fc290805394e07b913e222f4323aef [2019-10-15 00:11:30,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:11:30,556 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:11:30,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:11:30,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:11:30,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:11:30,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:11:30" (1/1) ... [2019-10-15 00:11:30,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408294a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:30, skipping insertion in model container [2019-10-15 00:11:30,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:11:30" (1/1) ... [2019-10-15 00:11:30,574 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:11:30,645 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:11:31,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:11:31,208 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:11:31,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:11:31,386 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:11:31,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:31 WrapperNode [2019-10-15 00:11:31,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:11:31,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:11:31,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:11:31,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:11:31,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:31" (1/1) ... [2019-10-15 00:11:31,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:31" (1/1) ... [2019-10-15 00:11:31,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:31" (1/1) ... [2019-10-15 00:11:31,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:31" (1/1) ... [2019-10-15 00:11:31,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:31" (1/1) ... [2019-10-15 00:11:31,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:31" (1/1) ... [2019-10-15 00:11:31,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:31" (1/1) ... [2019-10-15 00:11:31,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:11:31,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:11:31,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:11:31,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:11:31,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:31" (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 [2019-10-15 00:11:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:11:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:11:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 00:11:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 00:11:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2019-10-15 00:11:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2019-10-15 00:11:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-15 00:11:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2019-10-15 00:11:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-15 00:11:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2019-10-15 00:11:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2019-10-15 00:11:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2019-10-15 00:11:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2019-10-15 00:11:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2019-10-15 00:11:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2019-10-15 00:11:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2019-10-15 00:11:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:11:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:11:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 00:11:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 00:11:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 00:11:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 00:11:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 00:11:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 00:11:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 00:11:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 00:11:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 00:11:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 00:11:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 00:11:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 00:11:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 00:11:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 00:11:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 00:11:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 00:11:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 00:11:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 00:11:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 00:11:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 00:11:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 00:11:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 00:11:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 00:11:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 00:11:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 00:11:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 00:11:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 00:11:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 00:11:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 00:11:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 00:11:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 00:11:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 00:11:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 00:11:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 00:11:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 00:11:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 00:11:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 00:11:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 00:11:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 00:11:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 00:11:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 00:11:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 00:11:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 00:11:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 00:11:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 00:11:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 00:11:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 00:11:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 00:11:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 00:11:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 00:11:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 00:11:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 00:11:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 00:11:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 00:11:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 00:11:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:11:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 00:11:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 00:11:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 00:11:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 00:11:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 00:11:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 00:11:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 00:11:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 00:11:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 00:11:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 00:11:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 00:11:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 00:11:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 00:11:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 00:11:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 00:11:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 00:11:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 00:11:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 00:11:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 00:11:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 00:11:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 00:11:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 00:11:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 00:11:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 00:11:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 00:11:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 00:11:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 00:11:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 00:11:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 00:11:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 00:11:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 00:11:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 00:11:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 00:11:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 00:11:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 00:11:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 00:11:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 00:11:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 00:11:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 00:11:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 00:11:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 00:11:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 00:11:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 00:11:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 00:11:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 00:11:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 00:11:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2019-10-15 00:11:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2019-10-15 00:11:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2019-10-15 00:11:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2019-10-15 00:11:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2019-10-15 00:11:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2019-10-15 00:11:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2019-10-15 00:11:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2019-10-15 00:11:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2019-10-15 00:11:31,601 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2019-10-15 00:11:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2019-10-15 00:11:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2019-10-15 00:11:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2019-10-15 00:11:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2019-10-15 00:11:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2019-10-15 00:11:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2019-10-15 00:11:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2019-10-15 00:11:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2019-10-15 00:11:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2019-10-15 00:11:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2019-10-15 00:11:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2019-10-15 00:11:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2019-10-15 00:11:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2019-10-15 00:11:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2019-10-15 00:11:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2019-10-15 00:11:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2019-10-15 00:11:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2019-10-15 00:11:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2019-10-15 00:11:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-10-15 00:11:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2019-10-15 00:11:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2019-10-15 00:11:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2019-10-15 00:11:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2019-10-15 00:11:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2019-10-15 00:11:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2019-10-15 00:11:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2019-10-15 00:11:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2019-10-15 00:11:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2019-10-15 00:11:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 00:11:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-15 00:11:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2019-10-15 00:11:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2019-10-15 00:11:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2019-10-15 00:11:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-15 00:11:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2019-10-15 00:11:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2019-10-15 00:11:31,608 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2019-10-15 00:11:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2019-10-15 00:11:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2019-10-15 00:11:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-10-15 00:11:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2019-10-15 00:11:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2019-10-15 00:11:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2019-10-15 00:11:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2019-10-15 00:11:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2019-10-15 00:11:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2019-10-15 00:11:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2019-10-15 00:11:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2019-10-15 00:11:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2019-10-15 00:11:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2019-10-15 00:11:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2019-10-15 00:11:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2019-10-15 00:11:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2019-10-15 00:11:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2019-10-15 00:11:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2019-10-15 00:11:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2019-10-15 00:11:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2019-10-15 00:11:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2019-10-15 00:11:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2019-10-15 00:11:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2019-10-15 00:11:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2019-10-15 00:11:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2019-10-15 00:11:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2019-10-15 00:11:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 00:11:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2019-10-15 00:11:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2019-10-15 00:11:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2019-10-15 00:11:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2019-10-15 00:11:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2019-10-15 00:11:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2019-10-15 00:11:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2019-10-15 00:11:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2019-10-15 00:11:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2019-10-15 00:11:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2019-10-15 00:11:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2019-10-15 00:11:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2019-10-15 00:11:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2019-10-15 00:11:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2019-10-15 00:11:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2019-10-15 00:11:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2019-10-15 00:11:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2019-10-15 00:11:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2019-10-15 00:11:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2019-10-15 00:11:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2019-10-15 00:11:31,617 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2019-10-15 00:11:31,617 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2019-10-15 00:11:31,617 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2019-10-15 00:11:31,617 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2019-10-15 00:11:31,617 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2019-10-15 00:11:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2019-10-15 00:11:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2019-10-15 00:11:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:11:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2019-10-15 00:11:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2019-10-15 00:11:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:11:31,619 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-15 00:11:31,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:11:31,619 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2019-10-15 00:11:31,619 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-15 00:11:31,619 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2019-10-15 00:11:31,619 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2019-10-15 00:11:31,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 00:11:31,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:11:31,620 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2019-10-15 00:11:31,620 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2019-10-15 00:11:31,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:11:31,620 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2019-10-15 00:11:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:11:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2019-10-15 00:11:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2019-10-15 00:11:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:11:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:11:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:11:31,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:11:31,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:11:32,530 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:11:32,530 INFO L284 CfgBuilder]: Removed 41 assume(true) statements. [2019-10-15 00:11:32,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:11:32 BoogieIcfgContainer [2019-10-15 00:11:32,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:11:32,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:11:32,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:11:32,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:11:32,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:11:30" (1/3) ... [2019-10-15 00:11:32,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e957c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:11:32, skipping insertion in model container [2019-10-15 00:11:32,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:11:31" (2/3) ... [2019-10-15 00:11:32,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e957c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:11:32, skipping insertion in model container [2019-10-15 00:11:32,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:11:32" (3/3) ... [2019-10-15 00:11:32,540 INFO L109 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2019-10-15 00:11:32,550 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:11:32,558 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 00:11:32,570 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 00:11:32,597 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:11:32,597 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:11:32,597 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:11:32,597 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:11:32,597 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:11:32,598 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:11:32,598 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:11:32,598 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:11:32,620 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2019-10-15 00:11:32,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 00:11:32,627 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:32,629 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:32,631 INFO L410 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:32,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:32,638 INFO L82 PathProgramCache]: Analyzing trace with hash -663354135, now seen corresponding path program 1 times [2019-10-15 00:11:32,648 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:32,648 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87389129] [2019-10-15 00:11:32,648 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:32,649 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:32,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:32,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:32,809 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87389129] [2019-10-15 00:11:32,810 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:32,810 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 00:11:32,811 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981357439] [2019-10-15 00:11:32,815 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 00:11:32,817 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:32,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 00:11:32,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 00:11:32,835 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 2 states. [2019-10-15 00:11:32,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:32,888 INFO L93 Difference]: Finished difference Result 280 states and 451 transitions. [2019-10-15 00:11:32,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 00:11:32,890 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-10-15 00:11:32,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:32,905 INFO L225 Difference]: With dead ends: 280 [2019-10-15 00:11:32,905 INFO L226 Difference]: Without dead ends: 130 [2019-10-15 00:11:32,919 INFO L600 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 [2019-10-15 00:11:32,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-10-15 00:11:33,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2019-10-15 00:11:33,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-10-15 00:11:33,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2019-10-15 00:11:33,031 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 14 [2019-10-15 00:11:33,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:33,032 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2019-10-15 00:11:33,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 00:11:33,033 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2019-10-15 00:11:33,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-15 00:11:33,036 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:33,037 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:33,037 INFO L410 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:33,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:33,039 INFO L82 PathProgramCache]: Analyzing trace with hash 151916718, now seen corresponding path program 1 times [2019-10-15 00:11:33,039 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:33,040 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104004198] [2019-10-15 00:11:33,040 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:33,040 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:33,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:33,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:33,288 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104004198] [2019-10-15 00:11:33,288 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:33,289 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 00:11:33,289 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609413078] [2019-10-15 00:11:33,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:11:33,291 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:33,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:11:33,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:11:33,292 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 5 states. [2019-10-15 00:11:33,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:33,497 INFO L93 Difference]: Finished difference Result 132 states and 152 transitions. [2019-10-15 00:11:33,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 00:11:33,498 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-15 00:11:33,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:33,501 INFO L225 Difference]: With dead ends: 132 [2019-10-15 00:11:33,501 INFO L226 Difference]: Without dead ends: 129 [2019-10-15 00:11:33,502 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:11:33,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-10-15 00:11:33,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-10-15 00:11:33,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-10-15 00:11:33,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2019-10-15 00:11:33,518 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 34 [2019-10-15 00:11:33,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:33,520 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2019-10-15 00:11:33,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 00:11:33,520 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2019-10-15 00:11:33,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-15 00:11:33,521 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:33,522 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:33,522 INFO L410 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:33,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:33,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1411633869, now seen corresponding path program 1 times [2019-10-15 00:11:33,523 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:33,523 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076308575] [2019-10-15 00:11:33,523 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:33,523 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:33,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:33,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:33,820 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076308575] [2019-10-15 00:11:33,820 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:33,821 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-15 00:11:33,821 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233775918] [2019-10-15 00:11:33,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 00:11:33,822 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:33,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 00:11:33,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-10-15 00:11:33,823 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 13 states. [2019-10-15 00:11:35,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:35,106 INFO L93 Difference]: Finished difference Result 232 states and 274 transitions. [2019-10-15 00:11:35,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 00:11:35,106 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37 [2019-10-15 00:11:35,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:35,119 INFO L225 Difference]: With dead ends: 232 [2019-10-15 00:11:35,119 INFO L226 Difference]: Without dead ends: 226 [2019-10-15 00:11:35,120 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2019-10-15 00:11:35,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2019-10-15 00:11:35,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 198. [2019-10-15 00:11:35,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-10-15 00:11:35,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 236 transitions. [2019-10-15 00:11:35,168 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 236 transitions. Word has length 37 [2019-10-15 00:11:35,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:35,169 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 236 transitions. [2019-10-15 00:11:35,169 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 00:11:35,169 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 236 transitions. [2019-10-15 00:11:35,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-15 00:11:35,173 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:35,173 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:35,173 INFO L410 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:35,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:35,174 INFO L82 PathProgramCache]: Analyzing trace with hash 2082496891, now seen corresponding path program 1 times [2019-10-15 00:11:35,175 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:35,176 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905334079] [2019-10-15 00:11:35,176 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:35,177 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:35,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:35,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:35,842 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905334079] [2019-10-15 00:11:35,843 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:35,843 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 00:11:35,843 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215274964] [2019-10-15 00:11:35,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 00:11:35,844 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:35,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 00:11:35,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2019-10-15 00:11:35,845 INFO L87 Difference]: Start difference. First operand 198 states and 236 transitions. Second operand 16 states. [2019-10-15 00:11:38,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:38,833 INFO L93 Difference]: Finished difference Result 329 states and 399 transitions. [2019-10-15 00:11:38,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-15 00:11:38,834 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 40 [2019-10-15 00:11:38,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:38,838 INFO L225 Difference]: With dead ends: 329 [2019-10-15 00:11:38,839 INFO L226 Difference]: Without dead ends: 326 [2019-10-15 00:11:38,840 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2019-10-15 00:11:38,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-10-15 00:11:38,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 290. [2019-10-15 00:11:38,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2019-10-15 00:11:38,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2019-10-15 00:11:38,869 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 40 [2019-10-15 00:11:38,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:38,870 INFO L462 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2019-10-15 00:11:38,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 00:11:38,870 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2019-10-15 00:11:38,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-15 00:11:38,871 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:38,871 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:38,872 INFO L410 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:38,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:38,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1376068061, now seen corresponding path program 1 times [2019-10-15 00:11:38,872 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:38,872 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334318910] [2019-10-15 00:11:38,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:38,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:38,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:39,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:39,619 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334318910] [2019-10-15 00:11:39,620 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:39,620 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 00:11:39,620 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978181335] [2019-10-15 00:11:39,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 00:11:39,621 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:39,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 00:11:39,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-15 00:11:39,623 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand 16 states. [2019-10-15 00:11:42,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:42,406 INFO L93 Difference]: Finished difference Result 327 states and 393 transitions. [2019-10-15 00:11:42,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-15 00:11:42,406 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 43 [2019-10-15 00:11:42,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:42,409 INFO L225 Difference]: With dead ends: 327 [2019-10-15 00:11:42,409 INFO L226 Difference]: Without dead ends: 324 [2019-10-15 00:11:42,414 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=189, Invalid=681, Unknown=0, NotChecked=0, Total=870 [2019-10-15 00:11:42,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-10-15 00:11:42,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 298. [2019-10-15 00:11:42,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2019-10-15 00:11:42,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 360 transitions. [2019-10-15 00:11:42,453 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 360 transitions. Word has length 43 [2019-10-15 00:11:42,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:42,453 INFO L462 AbstractCegarLoop]: Abstraction has 298 states and 360 transitions. [2019-10-15 00:11:42,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 00:11:42,453 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 360 transitions. [2019-10-15 00:11:42,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-15 00:11:42,455 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:42,455 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:42,455 INFO L410 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:42,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:42,455 INFO L82 PathProgramCache]: Analyzing trace with hash 796266502, now seen corresponding path program 1 times [2019-10-15 00:11:42,456 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:42,456 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730651378] [2019-10-15 00:11:42,456 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:42,456 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:42,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:43,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:43,120 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730651378] [2019-10-15 00:11:43,120 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:43,120 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-15 00:11:43,120 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786956959] [2019-10-15 00:11:43,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-15 00:11:43,121 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:43,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-15 00:11:43,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2019-10-15 00:11:43,122 INFO L87 Difference]: Start difference. First operand 298 states and 360 transitions. Second operand 17 states. [2019-10-15 00:11:46,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:46,172 INFO L93 Difference]: Finished difference Result 326 states and 391 transitions. [2019-10-15 00:11:46,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-15 00:11:46,175 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 46 [2019-10-15 00:11:46,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:46,178 INFO L225 Difference]: With dead ends: 326 [2019-10-15 00:11:46,178 INFO L226 Difference]: Without dead ends: 323 [2019-10-15 00:11:46,180 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=127, Invalid=743, Unknown=0, NotChecked=0, Total=870 [2019-10-15 00:11:46,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2019-10-15 00:11:46,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 298. [2019-10-15 00:11:46,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2019-10-15 00:11:46,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 359 transitions. [2019-10-15 00:11:46,217 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 359 transitions. Word has length 46 [2019-10-15 00:11:46,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:46,218 INFO L462 AbstractCegarLoop]: Abstraction has 298 states and 359 transitions. [2019-10-15 00:11:46,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-15 00:11:46,218 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 359 transitions. [2019-10-15 00:11:46,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-15 00:11:46,223 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:46,223 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:46,224 INFO L410 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:46,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:46,224 INFO L82 PathProgramCache]: Analyzing trace with hash 262392368, now seen corresponding path program 1 times [2019-10-15 00:11:46,224 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:46,225 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661817348] [2019-10-15 00:11:46,225 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:46,225 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:46,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:46,876 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-10-15 00:11:47,170 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-10-15 00:11:47,327 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-10-15 00:11:47,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:47,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661817348] [2019-10-15 00:11:47,744 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:47,744 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 00:11:47,744 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708950999] [2019-10-15 00:11:47,745 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 00:11:47,745 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:47,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 00:11:47,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2019-10-15 00:11:47,746 INFO L87 Difference]: Start difference. First operand 298 states and 359 transitions. Second operand 18 states. [2019-10-15 00:11:48,431 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-10-15 00:11:51,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:51,289 INFO L93 Difference]: Finished difference Result 325 states and 389 transitions. [2019-10-15 00:11:51,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-15 00:11:51,290 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 49 [2019-10-15 00:11:51,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:51,296 INFO L225 Difference]: With dead ends: 325 [2019-10-15 00:11:51,296 INFO L226 Difference]: Without dead ends: 322 [2019-10-15 00:11:51,297 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2019-10-15 00:11:51,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2019-10-15 00:11:51,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 298. [2019-10-15 00:11:51,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2019-10-15 00:11:51,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 358 transitions. [2019-10-15 00:11:51,334 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 358 transitions. Word has length 49 [2019-10-15 00:11:51,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:51,335 INFO L462 AbstractCegarLoop]: Abstraction has 298 states and 358 transitions. [2019-10-15 00:11:51,335 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 00:11:51,335 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 358 transitions. [2019-10-15 00:11:51,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 00:11:51,342 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:51,342 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:51,342 INFO L410 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:51,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:51,343 INFO L82 PathProgramCache]: Analyzing trace with hash -103719498, now seen corresponding path program 1 times [2019-10-15 00:11:51,343 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:51,343 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329796090] [2019-10-15 00:11:51,343 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:51,344 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:51,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:51,983 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-10-15 00:11:52,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:52,209 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329796090] [2019-10-15 00:11:52,210 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:52,210 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-15 00:11:52,212 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016637155] [2019-10-15 00:11:52,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-15 00:11:52,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:52,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-15 00:11:52,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2019-10-15 00:11:52,215 INFO L87 Difference]: Start difference. First operand 298 states and 358 transitions. Second operand 17 states. [2019-10-15 00:11:55,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:11:55,059 INFO L93 Difference]: Finished difference Result 328 states and 393 transitions. [2019-10-15 00:11:55,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-15 00:11:55,064 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 52 [2019-10-15 00:11:55,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:11:55,068 INFO L225 Difference]: With dead ends: 328 [2019-10-15 00:11:55,068 INFO L226 Difference]: Without dead ends: 325 [2019-10-15 00:11:55,069 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=268, Invalid=992, Unknown=0, NotChecked=0, Total=1260 [2019-10-15 00:11:55,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-10-15 00:11:55,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 298. [2019-10-15 00:11:55,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2019-10-15 00:11:55,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 357 transitions. [2019-10-15 00:11:55,126 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 357 transitions. Word has length 52 [2019-10-15 00:11:55,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:11:55,126 INFO L462 AbstractCegarLoop]: Abstraction has 298 states and 357 transitions. [2019-10-15 00:11:55,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-15 00:11:55,127 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 357 transitions. [2019-10-15 00:11:55,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-15 00:11:55,130 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:11:55,130 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:11:55,130 INFO L410 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:11:55,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:11:55,130 INFO L82 PathProgramCache]: Analyzing trace with hash -2004966405, now seen corresponding path program 1 times [2019-10-15 00:11:55,131 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:11:55,131 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117735589] [2019-10-15 00:11:55,131 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:55,131 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:11:55,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:11:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:11:56,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:11:56,134 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117735589] [2019-10-15 00:11:56,135 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:11:56,135 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 00:11:56,135 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561483671] [2019-10-15 00:11:56,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 00:11:56,136 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:11:56,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 00:11:56,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2019-10-15 00:11:56,137 INFO L87 Difference]: Start difference. First operand 298 states and 357 transitions. Second operand 18 states. [2019-10-15 00:11:56,963 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2019-10-15 00:12:00,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:12:00,276 INFO L93 Difference]: Finished difference Result 323 states and 385 transitions. [2019-10-15 00:12:00,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-15 00:12:00,277 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 55 [2019-10-15 00:12:00,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:12:00,279 INFO L225 Difference]: With dead ends: 323 [2019-10-15 00:12:00,279 INFO L226 Difference]: Without dead ends: 320 [2019-10-15 00:12:00,282 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=150, Invalid=906, Unknown=0, NotChecked=0, Total=1056 [2019-10-15 00:12:00,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2019-10-15 00:12:00,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 298. [2019-10-15 00:12:00,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2019-10-15 00:12:00,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 356 transitions. [2019-10-15 00:12:00,309 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 356 transitions. Word has length 55 [2019-10-15 00:12:00,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:12:00,311 INFO L462 AbstractCegarLoop]: Abstraction has 298 states and 356 transitions. [2019-10-15 00:12:00,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 00:12:00,311 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 356 transitions. [2019-10-15 00:12:00,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-15 00:12:00,312 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:12:00,312 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:12:00,312 INFO L410 AbstractCegarLoop]: === Iteration 10 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:12:00,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:12:00,312 INFO L82 PathProgramCache]: Analyzing trace with hash 354184987, now seen corresponding path program 1 times [2019-10-15 00:12:00,313 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:12:00,314 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357974169] [2019-10-15 00:12:00,314 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:12:00,314 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:12:00,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:12:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:12:01,202 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-10-15 00:12:01,653 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 00:12:01,654 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357974169] [2019-10-15 00:12:01,654 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995993542] [2019-10-15 00:12:01,654 INFO L94 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 [2019-10-15 00:12:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:12:01,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 126 conjunts are in the unsatisfiable core [2019-10-15 00:12:01,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 00:12:01,978 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 7 treesize of output 3 [2019-10-15 00:12:01,979 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 00:12:02,002 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:12:02,007 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 7 treesize of output 3 [2019-10-15 00:12:02,008 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 00:12:02,017 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:12:02,018 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 00:12:02,018 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:18 [2019-10-15 00:12:02,227 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 15 treesize of output 1 [2019-10-15 00:12:02,227 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 00:12:02,256 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:12:02,257 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.base_BEFORE_CALL_4| vanished before elimination [2019-10-15 00:12:02,261 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 15 treesize of output 1 [2019-10-15 00:12:02,262 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 00:12:02,273 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:12:02,273 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_BEFORE_CALL_4| vanished before elimination [2019-10-15 00:12:02,274 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 00:12:02,274 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:53, output treesize:18 [2019-10-15 00:12:02,545 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 31 [2019-10-15 00:12:02,546 INFO L341 Elim1Store]: treesize reduction 165, result has 27.3 percent of original size [2019-10-15 00:12:02,547 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 3 case distinctions, treesize of input 77 treesize of output 69 [2019-10-15 00:12:02,547 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 00:12:02,617 INFO L567 ElimStorePlain]: treesize reduction 16, result has 80.7 percent of original size [2019-10-15 00:12:02,619 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:12:02,620 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:12:02,624 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 00:12:02,625 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:92, output treesize:84 [2019-10-15 00:12:02,625 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:12:02,626 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:12:02,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:12:02,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:12:02,829 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:12:02,830 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:12:03,064 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-10-15 00:12:03,077 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:03,111 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 00:12:03,314 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2019-10-15 00:12:03,314 INFO L567 ElimStorePlain]: treesize reduction 95, result has 67.6 percent of original size [2019-10-15 00:12:03,330 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 00:12:03,402 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:12:03,408 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 00:12:03,476 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:12:03,482 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 00:12:03,544 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 00:12:03,545 INFO L464 ElimStorePlain]: Eliminatee v_prenex_3 vanished before elimination [2019-10-15 00:12:03,545 INFO L464 ElimStorePlain]: Eliminatee v_prenex_4 vanished before elimination [2019-10-15 00:12:03,547 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 6 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2019-10-15 00:12:03,547 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:300, output treesize:201 [2019-10-15 00:12:03,708 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 00:12:03,734 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:12:03,737 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:12:03,992 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-10-15 00:12:03,993 INFO L341 Elim1Store]: treesize reduction 78, result has 82.1 percent of original size [2019-10-15 00:12:03,994 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 121 treesize of output 437 [2019-10-15 00:12:03,997 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 00:12:04,027 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:12:04,028 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 00:12:04,549 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2019-10-15 00:12:04,549 INFO L341 Elim1Store]: treesize reduction 65, result has 89.0 percent of original size [2019-10-15 00:12:04,550 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 115 treesize of output 593 [2019-10-15 00:12:04,554 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 00:12:04,989 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 93 [2019-10-15 00:12:04,989 INFO L567 ElimStorePlain]: treesize reduction 749, result has 36.0 percent of original size [2019-10-15 00:12:04,991 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:04,995 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:04,997 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:04,997 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:04,999 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,001 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,003 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,008 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,011 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,015 INFO L496 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 9 dim-0 vars, and 2 xjuncts. [2019-10-15 00:12:05,015 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:237, output treesize:421 [2019-10-15 00:12:05,016 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,018 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,019 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,021 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,022 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,023 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,024 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,026 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,027 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,296 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,300 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,301 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,303 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,304 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,306 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,308 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,310 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:05,311 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:06,500 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:06,501 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:06,502 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:06,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:06,504 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:06,506 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:06,506 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:06,508 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:06,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:06,512 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 00:12:06,513 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms