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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/list-ext2-properties/list_and_tree_cnstr-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:28:23,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:28:23,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:28:23,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:28:23,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:28:23,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:28:23,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:28:23,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:28:23,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:28:23,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:28:23,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:28:23,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:28:23,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:28:23,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:28:23,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:28:23,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:28:23,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:28:23,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:28:23,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:28:23,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:28:23,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:28:23,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:28:23,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:28:23,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:28:23,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:28:23,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:28:23,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:28:23,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:28:23,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:28:23,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:28:23,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:28:23,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:28:23,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:28:23,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:28:23,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:28:23,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:28:23,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:28:23,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:28:23,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:28:23,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:28:23,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:28:23,655 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:28:23,686 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:28:23,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:28:23,686 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:28:23,687 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:28:23,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:28:23,688 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:28:23,688 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:28:23,688 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:28:23,688 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:28:23,689 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:28:23,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:28:23,690 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:28:23,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:28:23,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:28:23,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:28:23,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:28:23,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:28:23,691 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:28:23,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:28:23,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:28:23,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:28:23,692 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:28:23,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:28:23,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:28:23,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:28:23,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:28:23,693 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:28:23,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:28:23,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:28:23,694 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:28:23,756 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:28:23,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:28:23,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:28:23,775 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:28:23,776 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:28:23,776 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext2-properties/list_and_tree_cnstr-2.i [2019-10-03 02:28:23,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64474fb1/6251da5fd3744de580270f4838e8229b/FLAG6146d962a [2019-10-03 02:28:24,472 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:28:24,473 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext2-properties/list_and_tree_cnstr-2.i [2019-10-03 02:28:24,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64474fb1/6251da5fd3744de580270f4838e8229b/FLAG6146d962a [2019-10-03 02:28:24,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64474fb1/6251da5fd3744de580270f4838e8229b [2019-10-03 02:28:24,753 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:28:24,755 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:28:24,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:28:24,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:28:24,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:28:24,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:28:24" (1/1) ... [2019-10-03 02:28:24,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fef2e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:28:24, skipping insertion in model container [2019-10-03 02:28:24,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:28:24" (1/1) ... [2019-10-03 02:28:24,779 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:28:24,853 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:28:25,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:28:25,406 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:28:25,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:28:25,532 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:28:25,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:28:25 WrapperNode [2019-10-03 02:28:25,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:28:25,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:28:25,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:28:25,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:28:25,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:28:25" (1/1) ... [2019-10-03 02:28:25,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:28:25" (1/1) ... [2019-10-03 02:28:25,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:28:25" (1/1) ... [2019-10-03 02:28:25,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:28:25" (1/1) ... [2019-10-03 02:28:25,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:28:25" (1/1) ... [2019-10-03 02:28:25,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:28:25" (1/1) ... [2019-10-03 02:28:25,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:28:25" (1/1) ... [2019-10-03 02:28:25,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:28:25,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:28:25,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:28:25,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:28:25,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:28:25" (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 [2019-10-03 02:28:25,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:28:25,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:28:25,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-03 02:28:25,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-03 02:28:25,732 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-03 02:28:25,732 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:28:25,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:28:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:28:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-03 02:28:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-03 02:28:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-03 02:28:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-03 02:28:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-03 02:28:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-03 02:28:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-03 02:28:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-03 02:28:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-03 02:28:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-03 02:28:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-03 02:28:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-03 02:28:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-03 02:28:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-03 02:28:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-03 02:28:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-03 02:28:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-03 02:28:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-03 02:28:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-03 02:28:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-03 02:28:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-03 02:28:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-03 02:28:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-03 02:28:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-03 02:28:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-03 02:28:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-03 02:28:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-03 02:28:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-03 02:28:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-03 02:28:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-03 02:28:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-03 02:28:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-03 02:28:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-03 02:28:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-03 02:28:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-03 02:28:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-03 02:28:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-03 02:28:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-03 02:28:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-03 02:28:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-03 02:28:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-03 02:28:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-03 02:28:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-03 02:28:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-03 02:28:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-03 02:28:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-03 02:28:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-03 02:28:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-03 02:28:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-03 02:28:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-03 02:28:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-03 02:28:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-03 02:28:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:28:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 02:28:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-03 02:28:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:28:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-03 02:28:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-03 02:28:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-03 02:28:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-03 02:28:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-03 02:28:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-03 02:28:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-03 02:28:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-03 02:28:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-03 02:28:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:28:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-03 02:28:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-03 02:28:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-03 02:28:25,753 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-03 02:28:25,753 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-03 02:28:25,754 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-03 02:28:25,754 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-03 02:28:25,754 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-03 02:28:25,754 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-03 02:28:25,754 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-03 02:28:25,754 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-03 02:28:25,755 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-03 02:28:25,756 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-03 02:28:25,756 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-03 02:28:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-03 02:28:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-03 02:28:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-03 02:28:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-03 02:28:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-03 02:28:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-03 02:28:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-03 02:28:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-03 02:28:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-03 02:28:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-03 02:28:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-03 02:28:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-03 02:28:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-03 02:28:25,759 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-03 02:28:25,759 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-03 02:28:25,759 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-03 02:28:25,759 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-03 02:28:25,759 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-03 02:28:25,759 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-03 02:28:25,759 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-03 02:28:25,760 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-03 02:28:25,760 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-03 02:28:25,760 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-03 02:28:25,760 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-03 02:28:25,760 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-03 02:28:25,760 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-03 02:28:25,760 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:28:25,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:28:25,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:28:25,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:28:25,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:28:25,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:28:25,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:28:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:28:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:28:26,181 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-03 02:28:26,608 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:28:26,609 INFO L283 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-03 02:28:26,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:28:26 BoogieIcfgContainer [2019-10-03 02:28:26,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:28:26,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:28:26,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:28:26,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:28:26,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:28:24" (1/3) ... [2019-10-03 02:28:26,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47acf99a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:28:26, skipping insertion in model container [2019-10-03 02:28:26,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:28:25" (2/3) ... [2019-10-03 02:28:26,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47acf99a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:28:26, skipping insertion in model container [2019-10-03 02:28:26,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:28:26" (3/3) ... [2019-10-03 02:28:26,631 INFO L109 eAbstractionObserver]: Analyzing ICFG list_and_tree_cnstr-2.i [2019-10-03 02:28:26,644 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:28:26,658 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:28:26,680 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:28:26,723 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:28:26,724 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:28:26,724 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:28:26,729 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:28:26,729 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:28:26,729 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:28:26,729 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:28:26,729 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:28:26,755 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2019-10-03 02:28:26,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-03 02:28:26,767 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:28:26,768 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:28:26,771 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:28:26,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:28:26,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1575706012, now seen corresponding path program 1 times [2019-10-03 02:28:26,779 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:28:26,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:28:26,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:28:26,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:28:26,852 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:28:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:28:26,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:28:26,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:28:26,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:28:26,976 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:28:26,988 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:28:27,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:28:27,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:28:27,013 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2019-10-03 02:28:27,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:28:27,039 INFO L93 Difference]: Finished difference Result 57 states and 77 transitions. [2019-10-03 02:28:27,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:28:27,040 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-10-03 02:28:27,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:28:27,051 INFO L225 Difference]: With dead ends: 57 [2019-10-03 02:28:27,052 INFO L226 Difference]: Without dead ends: 47 [2019-10-03 02:28:27,054 INFO L640 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 [2019-10-03 02:28:27,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-03 02:28:27,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-10-03 02:28:27,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-03 02:28:27,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 64 transitions. [2019-10-03 02:28:27,097 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 64 transitions. Word has length 20 [2019-10-03 02:28:27,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:28:27,097 INFO L475 AbstractCegarLoop]: Abstraction has 47 states and 64 transitions. [2019-10-03 02:28:27,098 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:28:27,098 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 64 transitions. [2019-10-03 02:28:27,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-03 02:28:27,099 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:28:27,100 INFO L411 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] [2019-10-03 02:28:27,100 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:28:27,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:28:27,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1627887593, now seen corresponding path program 1 times [2019-10-03 02:28:27,101 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:28:27,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:28:27,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:28:27,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:28:27,107 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:28:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:28:27,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:28:27,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:28:27,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:28:27,221 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:28:27,224 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:28:27,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:28:27,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:28:27,226 INFO L87 Difference]: Start difference. First operand 47 states and 64 transitions. Second operand 3 states. [2019-10-03 02:28:27,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:28:27,257 INFO L93 Difference]: Finished difference Result 55 states and 77 transitions. [2019-10-03 02:28:27,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:28:27,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-03 02:28:27,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:28:27,264 INFO L225 Difference]: With dead ends: 55 [2019-10-03 02:28:27,264 INFO L226 Difference]: Without dead ends: 55 [2019-10-03 02:28:27,267 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:28:27,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-10-03 02:28:27,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-10-03 02:28:27,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-10-03 02:28:27,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 77 transitions. [2019-10-03 02:28:27,284 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 77 transitions. Word has length 25 [2019-10-03 02:28:27,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:28:27,285 INFO L475 AbstractCegarLoop]: Abstraction has 55 states and 77 transitions. [2019-10-03 02:28:27,285 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:28:27,285 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 77 transitions. [2019-10-03 02:28:27,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-03 02:28:27,288 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:28:27,288 INFO L411 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] [2019-10-03 02:28:27,288 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:28:27,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:28:27,289 INFO L82 PathProgramCache]: Analyzing trace with hash -164754602, now seen corresponding path program 1 times [2019-10-03 02:28:27,289 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:28:27,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:28:27,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:28:27,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:28:27,296 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:28:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:28:27,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:28:27,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:28:27,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:28:27,412 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:28:27,413 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:28:27,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:28:27,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:28:27,414 INFO L87 Difference]: Start difference. First operand 55 states and 77 transitions. Second operand 3 states. [2019-10-03 02:28:27,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:28:27,446 INFO L93 Difference]: Finished difference Result 57 states and 79 transitions. [2019-10-03 02:28:27,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:28:27,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-10-03 02:28:27,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:28:27,449 INFO L225 Difference]: With dead ends: 57 [2019-10-03 02:28:27,449 INFO L226 Difference]: Without dead ends: 57 [2019-10-03 02:28:27,451 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:28:27,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-03 02:28:27,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-10-03 02:28:27,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-10-03 02:28:27,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 79 transitions. [2019-10-03 02:28:27,466 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 79 transitions. Word has length 31 [2019-10-03 02:28:27,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:28:27,466 INFO L475 AbstractCegarLoop]: Abstraction has 57 states and 79 transitions. [2019-10-03 02:28:27,466 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:28:27,467 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 79 transitions. [2019-10-03 02:28:27,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-03 02:28:27,470 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:28:27,470 INFO L411 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] [2019-10-03 02:28:27,471 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:28:27,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:28:27,472 INFO L82 PathProgramCache]: Analyzing trace with hash -982403052, now seen corresponding path program 1 times [2019-10-03 02:28:27,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:28:27,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:28:27,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:28:27,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:28:27,480 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:28:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:28:27,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:28:27,653 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:28:27,653 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:28:27,653 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:28:27,654 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:28:27,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:28:27,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:28:27,656 INFO L87 Difference]: Start difference. First operand 57 states and 79 transitions. Second operand 5 states. [2019-10-03 02:28:27,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:28:27,865 INFO L93 Difference]: Finished difference Result 80 states and 106 transitions. [2019-10-03 02:28:27,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:28:27,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-03 02:28:27,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:28:27,872 INFO L225 Difference]: With dead ends: 80 [2019-10-03 02:28:27,872 INFO L226 Difference]: Without dead ends: 78 [2019-10-03 02:28:27,873 INFO L640 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 [2019-10-03 02:28:27,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-10-03 02:28:27,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 66. [2019-10-03 02:28:27,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-10-03 02:28:27,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2019-10-03 02:28:27,892 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 31 [2019-10-03 02:28:27,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:28:27,893 INFO L475 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2019-10-03 02:28:27,893 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:28:27,893 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2019-10-03 02:28:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-03 02:28:27,896 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:28:27,897 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:28:27,897 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:28:27,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:28:27,898 INFO L82 PathProgramCache]: Analyzing trace with hash 852152367, now seen corresponding path program 1 times [2019-10-03 02:28:27,898 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:28:27,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:28:27,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:28:27,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:28:27,903 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:28:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:28:28,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:28:28,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:28:28,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:28:28,022 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:28:28,022 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:28:28,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:28:28,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:28:28,023 INFO L87 Difference]: Start difference. First operand 66 states and 91 transitions. Second operand 5 states. [2019-10-03 02:28:28,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:28:28,212 INFO L93 Difference]: Finished difference Result 78 states and 103 transitions. [2019-10-03 02:28:28,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:28:28,213 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-10-03 02:28:28,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:28:28,215 INFO L225 Difference]: With dead ends: 78 [2019-10-03 02:28:28,215 INFO L226 Difference]: Without dead ends: 76 [2019-10-03 02:28:28,216 INFO L640 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 [2019-10-03 02:28:28,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-10-03 02:28:28,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 64. [2019-10-03 02:28:28,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-10-03 02:28:28,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 88 transitions. [2019-10-03 02:28:28,223 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 88 transitions. Word has length 33 [2019-10-03 02:28:28,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:28:28,224 INFO L475 AbstractCegarLoop]: Abstraction has 64 states and 88 transitions. [2019-10-03 02:28:28,224 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:28:28,224 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 88 transitions. [2019-10-03 02:28:28,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-03 02:28:28,226 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:28:28,226 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:28:28,226 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:28:28,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:28:28,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1876855343, now seen corresponding path program 1 times [2019-10-03 02:28:28,227 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:28:28,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:28:28,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:28:28,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:28:28,231 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:28:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:28:28,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:28:28,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:28:28,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:28:28,296 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:28:28,297 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:28:28,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:28:28,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:28:28,297 INFO L87 Difference]: Start difference. First operand 64 states and 88 transitions. Second operand 5 states. [2019-10-03 02:28:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:28:28,446 INFO L93 Difference]: Finished difference Result 76 states and 100 transitions. [2019-10-03 02:28:28,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:28:28,447 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-10-03 02:28:28,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:28:28,448 INFO L225 Difference]: With dead ends: 76 [2019-10-03 02:28:28,448 INFO L226 Difference]: Without dead ends: 73 [2019-10-03 02:28:28,449 INFO L640 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 [2019-10-03 02:28:28,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-10-03 02:28:28,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 61. [2019-10-03 02:28:28,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-10-03 02:28:28,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2019-10-03 02:28:28,455 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 33 [2019-10-03 02:28:28,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:28:28,455 INFO L475 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2019-10-03 02:28:28,455 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:28:28,456 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2019-10-03 02:28:28,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-03 02:28:28,457 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:28:28,457 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:28:28,457 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:28:28,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:28:28,458 INFO L82 PathProgramCache]: Analyzing trace with hash -778946181, now seen corresponding path program 1 times [2019-10-03 02:28:28,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:28:28,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:28:28,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:28:28,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:28:28,465 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:28:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:28:28,628 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:28:28,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:28:28,629 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:28:28,630 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 36 with the following transitions: [2019-10-03 02:28:28,632 INFO L207 CegarAbsIntRunner]: [7], [8], [9], [14], [17], [74], [81], [83], [88], [93], [97], [119], [121], [125], [131], [133], [138], [141], [158], [161], [163], [169], [171], [175], [180], [183], [192], [195], [201], [204], [206], [224], [225], [226] [2019-10-03 02:28:28,695 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:28:28,695 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:28:28,767 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:28:28,771 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 47 variables. [2019-10-03 02:28:28,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:28:28,777 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:28:28,832 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-03 02:28:28,833 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:28:28,835 INFO L420 sIntCurrentIteration]: We unified 34 AI predicates to 34 [2019-10-03 02:28:28,836 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:28:28,836 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:28:28,837 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2019-10-03 02:28:28,837 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:28:28,838 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:28:28,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:28:28,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:28:28,838 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand 2 states. [2019-10-03 02:28:28,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:28:28,839 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-03 02:28:28,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:28:28,840 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 35 [2019-10-03 02:28:28,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:28:28,840 INFO L225 Difference]: With dead ends: 6 [2019-10-03 02:28:28,840 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:28:28,841 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:28:28,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:28:28,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:28:28,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:28:28,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:28:28,842 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-10-03 02:28:28,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:28:28,843 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:28:28,843 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:28:28,843 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:28:28,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:28:28,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:28:28 BoogieIcfgContainer [2019-10-03 02:28:28,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:28:28,855 INFO L168 Benchmark]: Toolchain (without parser) took 4096.88 ms. Allocated memory was 140.0 MB in the beginning and 226.5 MB in the end (delta: 86.5 MB). Free memory was 85.3 MB in the beginning and 86.3 MB in the end (delta: -988.8 kB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:28:28,858 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 104.7 MB in the beginning and 104.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:28:28,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 775.64 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 85.1 MB in the beginning and 165.0 MB in the end (delta: -79.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:28:28,863 INFO L168 Benchmark]: Boogie Preprocessor took 103.54 ms. Allocated memory is still 201.3 MB. Free memory was 165.0 MB in the beginning and 161.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:28:28,864 INFO L168 Benchmark]: RCFGBuilder took 979.34 ms. Allocated memory is still 201.3 MB. Free memory was 161.4 MB in the beginning and 105.1 MB in the end (delta: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:28:28,866 INFO L168 Benchmark]: TraceAbstraction took 2229.02 ms. Allocated memory was 201.3 MB in the beginning and 226.5 MB in the end (delta: 25.2 MB). Free memory was 104.5 MB in the beginning and 86.3 MB in the end (delta: 18.2 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:28:28,878 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 104.7 MB in the beginning and 104.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 775.64 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 85.1 MB in the beginning and 165.0 MB in the end (delta: -79.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.54 ms. Allocated memory is still 201.3 MB. Free memory was 165.0 MB in the beginning and 161.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 979.34 ms. Allocated memory is still 201.3 MB. Free memory was 161.4 MB in the beginning and 105.1 MB in the end (delta: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2229.02 ms. Allocated memory was 201.3 MB in the beginning and 226.5 MB in the end (delta: 25.2 MB). Free memory was 104.5 MB in the beginning and 86.3 MB in the end (delta: 18.2 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 609]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 64 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 377 SDtfs, 75 SDslu, 566 SDs, 0 SdLazy, 167 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9558823529411765 AbsIntWeakeningRatio, 1.2941176470588236 AbsIntAvgWeakeningVarsNumRemoved, 0.17647058823529413 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 208 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 201 ConstructedInterpolants, 0 QuantifiedInterpolants, 15937 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 9/11 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...