/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:25:23,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:25:23,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:25:23,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:25:23,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:25:23,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:25:23,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:25:23,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:25:23,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:25:23,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:25:23,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:25:23,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:25:23,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:25:23,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:25:23,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:25:23,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:25:23,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:25:23,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:25:23,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:25:23,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:25:23,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:25:23,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:25:23,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:25:23,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:25:24,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:25:24,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:25:24,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:25:24,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:25:24,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:25:24,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:25:24,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:25:24,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:25:24,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:25:24,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:25:24,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:25:24,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:25:24,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:25:24,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:25:24,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:25:24,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:25:24,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:25:24,028 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:25:24,045 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:25:24,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:25:24,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:25:24,048 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:25:24,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:25:24,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:25:24,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:25:24,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:25:24,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:25:24,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:25:24,050 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:25:24,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:25:24,050 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:25:24,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:25:24,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:25:24,051 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:25:24,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:25:24,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:25:24,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:25:24,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:25:24,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:25:24,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:25:24,053 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:25:24,054 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:25:24,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:25:24,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:25:24,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:25:24,587 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:25:24,588 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:25:24,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i [2021-02-24 04:25:24,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbca749a4/06b5cbf5fc2a4e0abd0ab68a684f4c0d/FLAGa7f42c1cb [2021-02-24 04:25:25,474 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:25:25,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i [2021-02-24 04:25:25,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbca749a4/06b5cbf5fc2a4e0abd0ab68a684f4c0d/FLAGa7f42c1cb [2021-02-24 04:25:25,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbca749a4/06b5cbf5fc2a4e0abd0ab68a684f4c0d [2021-02-24 04:25:25,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:25:25,798 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:25:25,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:25:25,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:25:25,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:25:25,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:25:25" (1/1) ... [2021-02-24 04:25:25,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ae4d918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:25, skipping insertion in model container [2021-02-24 04:25:25,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:25:25" (1/1) ... [2021-02-24 04:25:25,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:25:25,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:25:26,391 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i[22365,22378] [2021-02-24 04:25:26,397 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i[22471,22484] [2021-02-24 04:25:26,403 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i[22595,22608] [2021-02-24 04:25:26,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:25:26,424 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:25:26,463 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i[22365,22378] [2021-02-24 04:25:26,466 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i[22471,22484] [2021-02-24 04:25:26,468 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i[22595,22608] [2021-02-24 04:25:26,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:25:26,601 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:25:26,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:26 WrapperNode [2021-02-24 04:25:26,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:25:26,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:25:26,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:25:26,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:25:26,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:26" (1/1) ... [2021-02-24 04:25:26,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:26" (1/1) ... [2021-02-24 04:25:26,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:26" (1/1) ... [2021-02-24 04:25:26,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:26" (1/1) ... [2021-02-24 04:25:26,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:26" (1/1) ... [2021-02-24 04:25:26,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:26" (1/1) ... [2021-02-24 04:25:26,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:26" (1/1) ... [2021-02-24 04:25:26,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:25:26,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:25:26,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:25:26,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:25:26,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:26" (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 [2021-02-24 04:25:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:25:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:25:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:25:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:25:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-24 04:25:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-24 04:25:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-24 04:25:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-24 04:25:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-24 04:25:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-24 04:25:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-24 04:25:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-24 04:25:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-24 04:25:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-24 04:25:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-24 04:25:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-24 04:25:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-24 04:25:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-24 04:25:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-24 04:25:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-24 04:25:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-24 04:25:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-24 04:25:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-24 04:25:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-24 04:25:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-24 04:25:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-24 04:25:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-24 04:25:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-24 04:25:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-24 04:25:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-24 04:25:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-24 04:25:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-24 04:25:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-24 04:25:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-24 04:25:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-24 04:25:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-24 04:25:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-24 04:25:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-24 04:25:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-24 04:25:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-24 04:25:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-24 04:25:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-24 04:25:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-24 04:25:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-24 04:25:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-24 04:25:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-24 04:25:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-24 04:25:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-24 04:25:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-24 04:25:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-24 04:25:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-24 04:25:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-24 04:25:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-24 04:25:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-24 04:25:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 04:25:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-24 04:25:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-24 04:25:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 04:25:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-24 04:25:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-24 04:25:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-24 04:25:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-24 04:25:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-24 04:25:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:25:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-24 04:25:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-24 04:25:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-24 04:25:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:25:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-24 04:25:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-24 04:25:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-24 04:25:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-24 04:25:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-24 04:25:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-24 04:25:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-24 04:25:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-24 04:25:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-24 04:25:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-24 04:25:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-24 04:25:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-24 04:25:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-24 04:25:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-24 04:25:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-24 04:25:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-24 04:25:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-24 04:25:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-24 04:25:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-24 04:25:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-24 04:25:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-24 04:25:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-24 04:25:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-24 04:25:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-24 04:25:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-24 04:25:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-24 04:25:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-24 04:25:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-24 04:25:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-24 04:25:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-24 04:25:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-24 04:25:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-24 04:25:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-24 04:25:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-24 04:25:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-24 04:25:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-24 04:25:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-24 04:25:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-24 04:25:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-24 04:25:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:25:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:25:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 04:25:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 04:25:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:25:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:25:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:25:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 04:25:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 04:25:26,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:25:26,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 04:25:26,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:25:26,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:25:26,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:25:26,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:25:26,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:25:27,477 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:25:27,478 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-02-24 04:25:27,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:25:27 BoogieIcfgContainer [2021-02-24 04:25:27,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:25:27,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:25:27,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:25:27,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:25:27,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:25:25" (1/3) ... [2021-02-24 04:25:27,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7aeafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:25:27, skipping insertion in model container [2021-02-24 04:25:27,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:26" (2/3) ... [2021-02-24 04:25:27,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7aeafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:25:27, skipping insertion in model container [2021-02-24 04:25:27,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:25:27" (3/3) ... [2021-02-24 04:25:27,498 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i [2021-02-24 04:25:27,515 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:25:27,524 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-02-24 04:25:27,548 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-02-24 04:25:27,589 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:25:27,590 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:25:27,590 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:25:27,590 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:25:27,590 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:25:27,590 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:25:27,591 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:25:27,591 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:25:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2021-02-24 04:25:27,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-24 04:25:27,622 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:27,623 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:27,623 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:27,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:27,631 INFO L82 PathProgramCache]: Analyzing trace with hash 353569161, now seen corresponding path program 1 times [2021-02-24 04:25:27,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:27,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648341667] [2021-02-24 04:25:27,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:27,751 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:27,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:27,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:27,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:27,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:27,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:27,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:27,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:27,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:27,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648341667] [2021-02-24 04:25:27,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:27,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 04:25:27,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908744120] [2021-02-24 04:25:27,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 04:25:27,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:27,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 04:25:27,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 04:25:27,982 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 3 states. [2021-02-24 04:25:28,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:28,233 INFO L93 Difference]: Finished difference Result 186 states and 222 transitions. [2021-02-24 04:25:28,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 04:25:28,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-02-24 04:25:28,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:28,247 INFO L225 Difference]: With dead ends: 186 [2021-02-24 04:25:28,247 INFO L226 Difference]: Without dead ends: 81 [2021-02-24 04:25:28,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 04:25:28,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-02-24 04:25:28,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2021-02-24 04:25:28,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2021-02-24 04:25:28,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 86 transitions. [2021-02-24 04:25:28,306 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 86 transitions. Word has length 24 [2021-02-24 04:25:28,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:28,306 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 86 transitions. [2021-02-24 04:25:28,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 04:25:28,307 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 86 transitions. [2021-02-24 04:25:28,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-24 04:25:28,308 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:28,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:28,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:25:28,309 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:28,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:28,310 INFO L82 PathProgramCache]: Analyzing trace with hash 921610958, now seen corresponding path program 1 times [2021-02-24 04:25:28,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:28,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229042495] [2021-02-24 04:25:28,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:28,316 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:28,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:28,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:25:28,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:25:28,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:25:28,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:25:28,543 WARN L141 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size [2021-02-24 04:25:28,545 WARN L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-02-24 04:25:28,577 WARN L141 QuantifierPusher]: treesize reduction 8, result has 50.0 percent of original size [2021-02-24 04:25:28,579 WARN L147 QuantifierPusher]: treesize reduction 8, result has 50.0 percent of original size 8 [2021-02-24 04:25:28,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:28,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:28,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:28,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:28,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:28,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:28,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:28,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229042495] [2021-02-24 04:25:28,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:28,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 04:25:28,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649919115] [2021-02-24 04:25:28,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 04:25:28,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:28,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 04:25:28,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:25:28,660 INFO L87 Difference]: Start difference. First operand 81 states and 86 transitions. Second operand 10 states. [2021-02-24 04:25:29,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:29,207 INFO L93 Difference]: Finished difference Result 159 states and 167 transitions. [2021-02-24 04:25:29,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 04:25:29,208 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2021-02-24 04:25:29,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:29,211 INFO L225 Difference]: With dead ends: 159 [2021-02-24 04:25:29,211 INFO L226 Difference]: Without dead ends: 157 [2021-02-24 04:25:29,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2021-02-24 04:25:29,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-02-24 04:25:29,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 89. [2021-02-24 04:25:29,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2021-02-24 04:25:29,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 95 transitions. [2021-02-24 04:25:29,238 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 95 transitions. Word has length 26 [2021-02-24 04:25:29,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:29,239 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 95 transitions. [2021-02-24 04:25:29,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 04:25:29,239 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 95 transitions. [2021-02-24 04:25:29,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-02-24 04:25:29,241 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:29,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:29,241 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:25:29,242 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:29,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:29,242 INFO L82 PathProgramCache]: Analyzing trace with hash 2032897458, now seen corresponding path program 1 times [2021-02-24 04:25:29,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:29,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977742732] [2021-02-24 04:25:29,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:29,249 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:29,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:29,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:25:29,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:25:29,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:25:29,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:25:29,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:25:29,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:25:29,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:25:29,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:29,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:29,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:29,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:29,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:29,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:29,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:29,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977742732] [2021-02-24 04:25:29,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:29,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 04:25:29,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977191319] [2021-02-24 04:25:29,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 04:25:29,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:29,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 04:25:29,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:25:29,589 INFO L87 Difference]: Start difference. First operand 89 states and 95 transitions. Second operand 12 states. [2021-02-24 04:25:30,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:30,157 INFO L93 Difference]: Finished difference Result 126 states and 136 transitions. [2021-02-24 04:25:30,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 04:25:30,157 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2021-02-24 04:25:30,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:30,163 INFO L225 Difference]: With dead ends: 126 [2021-02-24 04:25:30,164 INFO L226 Difference]: Without dead ends: 124 [2021-02-24 04:25:30,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2021-02-24 04:25:30,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-02-24 04:25:30,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 109. [2021-02-24 04:25:30,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-02-24 04:25:30,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2021-02-24 04:25:30,200 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 35 [2021-02-24 04:25:30,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:30,200 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2021-02-24 04:25:30,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 04:25:30,200 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2021-02-24 04:25:30,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-02-24 04:25:30,202 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:30,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:30,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:25:30,203 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:30,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:30,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1829183814, now seen corresponding path program 1 times [2021-02-24 04:25:30,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:30,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747312888] [2021-02-24 04:25:30,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:30,209 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:30,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:30,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:25:30,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:30,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:30,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:30,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:30,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747312888] [2021-02-24 04:25:30,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:30,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:25:30,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419439162] [2021-02-24 04:25:30,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:25:30,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:30,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:25:30,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:30,293 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand 4 states. [2021-02-24 04:25:30,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:30,489 INFO L93 Difference]: Finished difference Result 238 states and 256 transitions. [2021-02-24 04:25:30,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 04:25:30,490 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2021-02-24 04:25:30,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:30,492 INFO L225 Difference]: With dead ends: 238 [2021-02-24 04:25:30,493 INFO L226 Difference]: Without dead ends: 170 [2021-02-24 04:25:30,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:30,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-02-24 04:25:30,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 129. [2021-02-24 04:25:30,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2021-02-24 04:25:30,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 139 transitions. [2021-02-24 04:25:30,536 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 139 transitions. Word has length 40 [2021-02-24 04:25:30,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:30,537 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 139 transitions. [2021-02-24 04:25:30,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:25:30,537 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 139 transitions. [2021-02-24 04:25:30,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-02-24 04:25:30,539 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:30,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:30,542 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:25:30,542 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:30,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:30,543 INFO L82 PathProgramCache]: Analyzing trace with hash -924058287, now seen corresponding path program 1 times [2021-02-24 04:25:30,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:30,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681377768] [2021-02-24 04:25:30,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:30,556 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:30,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:30,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:25:30,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:25:30,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:25:30,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:25:30,780 WARN L141 QuantifierPusher]: treesize reduction 9, result has 83.3 percent of original size [2021-02-24 04:25:30,782 WARN L147 QuantifierPusher]: treesize reduction 9, result has 83.3 percent of original size 45 [2021-02-24 04:25:30,841 WARN L141 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-02-24 04:25:30,842 WARN L147 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size 25 [2021-02-24 04:25:30,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:25:30,860 WARN L141 QuantifierPusher]: treesize reduction 17, result has 51.4 percent of original size [2021-02-24 04:25:30,861 WARN L147 QuantifierPusher]: treesize reduction 17, result has 51.4 percent of original size 18 [2021-02-24 04:25:30,880 WARN L141 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-02-24 04:25:30,881 WARN L147 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size 27 [2021-02-24 04:25:30,902 WARN L141 QuantifierPusher]: treesize reduction 17, result has 62.2 percent of original size [2021-02-24 04:25:30,905 WARN L147 QuantifierPusher]: treesize reduction 17, result has 62.2 percent of original size 28 [2021-02-24 04:25:30,926 WARN L141 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-02-24 04:25:30,927 WARN L147 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size 10 [2021-02-24 04:25:30,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:30,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:30,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:30,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:31,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:31,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:31,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:31,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:31,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681377768] [2021-02-24 04:25:31,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:31,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-24 04:25:31,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522642851] [2021-02-24 04:25:31,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 04:25:31,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:31,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 04:25:31,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-02-24 04:25:31,042 INFO L87 Difference]: Start difference. First operand 129 states and 139 transitions. Second operand 14 states. [2021-02-24 04:25:32,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:32,096 INFO L93 Difference]: Finished difference Result 219 states and 232 transitions. [2021-02-24 04:25:32,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-24 04:25:32,097 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2021-02-24 04:25:32,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:32,099 INFO L225 Difference]: With dead ends: 219 [2021-02-24 04:25:32,099 INFO L226 Difference]: Without dead ends: 189 [2021-02-24 04:25:32,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=220, Invalid=710, Unknown=0, NotChecked=0, Total=930 [2021-02-24 04:25:32,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-02-24 04:25:32,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 137. [2021-02-24 04:25:32,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2021-02-24 04:25:32,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 147 transitions. [2021-02-24 04:25:32,136 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 147 transitions. Word has length 41 [2021-02-24 04:25:32,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:32,137 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 147 transitions. [2021-02-24 04:25:32,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 04:25:32,137 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 147 transitions. [2021-02-24 04:25:32,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-02-24 04:25:32,139 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:32,139 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:32,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 04:25:32,140 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:32,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:32,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1422998378, now seen corresponding path program 1 times [2021-02-24 04:25:32,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:32,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836295434] [2021-02-24 04:25:32,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:32,221 WARN L141 QuantifierPusher]: treesize reduction 13, result has 96.0 percent of original size [2021-02-24 04:25:32,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-02-24 04:25:32,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-02-24 04:25:32,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-02-24 04:25:32,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-02-24 04:25:32,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-02-24 04:25:32,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-02-24 04:25:32,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-02-24 04:25:32,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-02-24 04:25:32,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-02-24 04:25:32,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-02-24 04:25:32,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:25:32,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:25:32,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-02-24 04:25:32,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-02-24 04:25:32,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-02-24 04:25:32,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-02-24 04:25:32,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-02-24 04:25:32,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-02-24 04:25:32,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-02-24 04:25:32,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-02-24 04:25:32,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-02-24 04:25:32,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-02-24 04:25:32,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 689 [2021-02-24 04:25:32,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 690 [2021-02-24 04:25:32,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:32,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 704 [2021-02-24 04:25:32,344 WARN L147 QuantifierPusher]: treesize reduction 13, result has 96.0 percent of original size 316 [2021-02-24 04:25:32,368 INFO L446 ElimStorePlain]: Different costs {0=[|v_#memory_int_40|, |v_#memory_$Pointer$.offset_25|, |v_#memory_$Pointer$.base_25|], 2=[|v_#memory_int_38|, |v_#memory_int_39|]} [2021-02-24 04:25:32,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-02-24 04:25:32,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:32,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:32,383 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-24 04:25:32,393 INFO L628 ElimStorePlain]: treesize reduction 557, result has 0.2 percent of original size [2021-02-24 04:25:32,394 INFO L518 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_25| vanished before elimination [2021-02-24 04:25:32,394 INFO L518 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.base_25| vanished before elimination [2021-02-24 04:25:32,394 INFO L518 ElimStorePlain]: Eliminatee |v_#memory_int_38| vanished before elimination [2021-02-24 04:25:32,394 INFO L518 ElimStorePlain]: Eliminatee |v_#memory_int_39| vanished before elimination [2021-02-24 04:25:32,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:32,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:32,396 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-02-24 04:25:32,396 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:713, output treesize:1 [2021-02-24 04:25:32,400 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: cannot bring into simultaneous update form #memory_$Pointer$.base's outvar occurs in several conjuncts [(<= 0 (+ |v_main_#t~nondet4_7| 2147483648)), (= (let ((.cse0 (let ((.cse2 (store |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.base_3|)))) (store .cse2 |v_main_#t~malloc5.base_3| (store (select .cse2 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.base_28))))) (store .cse0 v_main_~x~0.base_27 (let ((.cse1 (+ v_main_~x~0.offset_27 8))) (store (store (select .cse0 v_main_~x~0.base_27) v_main_~x~0.offset_27 v_main_~head~0.base_10) .cse1 (select (select |v_#memory_$Pointer$.base_25| v_main_~x~0.base_27) .cse1))))) |v_#memory_$Pointer$.base_25|), (= (let ((.cse0 (let ((.cse2 (store |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.offset_3|)))) (store .cse2 |v_main_#t~malloc5.base_3| (store (select .cse2 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.offset_28))))) (store .cse0 v_main_~x~0.base_27 (let ((.cse1 (+ v_main_~x~0.offset_27 8))) (store (store (select .cse0 v_main_~x~0.base_27) v_main_~x~0.offset_27 v_main_~head~0.offset_10) .cse1 (select (select |v_#memory_$Pointer$.offset_25| v_main_~x~0.base_27) .cse1))))) |v_#memory_$Pointer$.offset_25|), (= (store |v_#memory_int_40| v_main_~x~0.base_27 (store (select |v_#memory_int_40| v_main_~x~0.base_27) (+ v_main_~x~0.offset_27 8) v_main_~state~0_10)) |v_#memory_int_24|), (= |v_main_#t~nondet8_7| 0), (= |v_#length_13| (store |v_#length_14| |v_main_#t~malloc5.base_3| 12)), (= (select |v_#valid_20| |v_main_#t~malloc5.base_3|) 0), (= |v_#memory_int_39| (store |v_#memory_int_28| v_main_~x~0.base_28 (store (select |v_#memory_int_28| v_main_~x~0.base_28) v_main_~x~0.offset_28 (select (select |v_#memory_int_39| v_main_~x~0.base_28) v_main_~x~0.offset_28)))), (< |v_main_#t~malloc5.base_3| |v_#StackHeapBarrier_6|), (< |v_main_#t~malloc5.base_3| 0), (<= 0 (+ |v_main_#t~nondet8_7| 2147483648)), (= |v_#valid_19| (store |v_#valid_20| |v_main_#t~malloc5.base_3| 1)), (<= |v_main_#t~nondet4_7| 2147483647), (= |v_#memory_int_38| (store |v_#memory_int_39| |v_main_#t~malloc5.base_3| (let ((.cse0 (+ |v_main_#t~malloc5.offset_3| 4))) (store (select |v_#memory_int_39| |v_main_#t~malloc5.base_3|) .cse0 (select (select |v_#memory_int_38| |v_main_#t~malloc5.base_3|) .cse0))))), (= (select (select (let ((.cse0 (store |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.base_3|)))) (store .cse0 |v_main_#t~malloc5.base_3| (store (select .cse0 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.base_28))) v_main_~x~0.base_28) v_main_~x~0.offset_28) v_main_~x~0.base_27), (<= |v_main_#t~nondet8_7| 2147483647), (> |v_main_#t~nondet4_7| 0), (< v_main_~x~0.offset_27 0), (= |v_main_#t~malloc5.offset_3| 0), (= (select (select (let ((.cse0 (store |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.offset_3|)))) (store .cse0 |v_main_#t~malloc5.base_3| (store (select .cse0 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.offset_28))) v_main_~x~0.base_28) v_main_~x~0.offset_28) v_main_~x~0.offset_27), (= |v_#memory_int_40| (store |v_#memory_int_38| v_main_~x~0.base_27 (store (select |v_#memory_int_38| v_main_~x~0.base_27) v_main_~x~0.offset_27 (select (select |v_#memory_int_40| v_main_~x~0.base_27) v_main_~x~0.offset_27))))] at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:107) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.werner.LoopAcceleratorLite.calculateSymbolicMemory(LoopAcceleratorLite.java:167) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.werner.LoopAcceleratorLite.summarizeLoop(LoopAcceleratorLite.java:105) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:52) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-24 04:25:32,404 INFO L168 Benchmark]: Toolchain (without parser) took 6620.61 ms. Allocated memory was 169.9 MB in the beginning and 208.7 MB in the end (delta: 38.8 MB). Free memory was 144.0 MB in the beginning and 116.6 MB in the end (delta: 27.3 MB). Peak memory consumption was 67.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:32,405 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 169.9 MB. Free memory is still 153.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:25:32,405 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.98 ms. Allocated memory is still 169.9 MB. Free memory was 142.8 MB in the beginning and 148.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 23.6 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:32,406 INFO L168 Benchmark]: Boogie Preprocessor took 72.97 ms. Allocated memory is still 169.9 MB. Free memory was 148.0 MB in the beginning and 145.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:32,407 INFO L168 Benchmark]: RCFGBuilder took 805.23 ms. Allocated memory is still 169.9 MB. Free memory was 145.1 MB in the beginning and 146.1 MB in the end (delta: -989.6 kB). Peak memory consumption was 47.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:32,407 INFO L168 Benchmark]: TraceAbstraction took 4915.89 ms. Allocated memory was 169.9 MB in the beginning and 208.7 MB in the end (delta: 38.8 MB). Free memory was 145.6 MB in the beginning and 116.6 MB in the end (delta: 28.9 MB). Peak memory consumption was 67.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:32,410 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 169.9 MB. Free memory is still 153.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 797.98 ms. Allocated memory is still 169.9 MB. Free memory was 142.8 MB in the beginning and 148.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 23.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 72.97 ms. Allocated memory is still 169.9 MB. Free memory was 148.0 MB in the beginning and 145.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 805.23 ms. Allocated memory is still 169.9 MB. Free memory was 145.1 MB in the beginning and 146.1 MB in the end (delta: -989.6 kB). Peak memory consumption was 47.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4915.89 ms. Allocated memory was 169.9 MB in the beginning and 208.7 MB in the end (delta: 38.8 MB). Free memory was 145.6 MB in the beginning and 116.6 MB in the end (delta: 28.9 MB). Peak memory consumption was 67.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: cannot bring into simultaneous update form #memory_$Pointer$.base's outvar occurs in several conjuncts [(<= 0 (+ |v_main_#t~nondet4_7| 2147483648)), (= (let ((.cse0 (let ((.cse2 (store |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.base_3|)))) (store .cse2 |v_main_#t~malloc5.base_3| (store (select .cse2 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.base_28))))) (store .cse0 v_main_~x~0.base_27 (let ((.cse1 (+ v_main_~x~0.offset_27 8))) (store (store (select .cse0 v_main_~x~0.base_27) v_main_~x~0.offset_27 v_main_~head~0.base_10) .cse1 (select (select |v_#memory_$Pointer$.base_25| v_main_~x~0.base_27) .cse1))))) |v_#memory_$Pointer$.base_25|), (= (let ((.cse0 (let ((.cse2 (store |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.offset_3|)))) (store .cse2 |v_main_#t~malloc5.base_3| (store (select .cse2 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.offset_28))))) (store .cse0 v_main_~x~0.base_27 (let ((.cse1 (+ v_main_~x~0.offset_27 8))) (store (store (select .cse0 v_main_~x~0.base_27) v_main_~x~0.offset_27 v_main_~head~0.offset_10) .cse1 (select (select |v_#memory_$Pointer$.offset_25| v_main_~x~0.base_27) .cse1))))) |v_#memory_$Pointer$.offset_25|), (= (store |v_#memory_int_40| v_main_~x~0.base_27 (store (select |v_#memory_int_40| v_main_~x~0.base_27) (+ v_main_~x~0.offset_27 8) v_main_~state~0_10)) |v_#memory_int_24|), (= |v_main_#t~nondet8_7| 0), (= |v_#length_13| (store |v_#length_14| |v_main_#t~malloc5.base_3| 12)), (= (select |v_#valid_20| |v_main_#t~malloc5.base_3|) 0), (= |v_#memory_int_39| (store |v_#memory_int_28| v_main_~x~0.base_28 (store (select |v_#memory_int_28| v_main_~x~0.base_28) v_main_~x~0.offset_28 (select (select |v_#memory_int_39| v_main_~x~0.base_28) v_main_~x~0.offset_28)))), (< |v_main_#t~malloc5.base_3| |v_#StackHeapBarrier_6|), (< |v_main_#t~malloc5.base_3| 0), (<= 0 (+ |v_main_#t~nondet8_7| 2147483648)), (= |v_#valid_19| (store |v_#valid_20| |v_main_#t~malloc5.base_3| 1)), (<= |v_main_#t~nondet4_7| 2147483647), (= |v_#memory_int_38| (store |v_#memory_int_39| |v_main_#t~malloc5.base_3| (let ((.cse0 (+ |v_main_#t~malloc5.offset_3| 4))) (store (select |v_#memory_int_39| |v_main_#t~malloc5.base_3|) .cse0 (select (select |v_#memory_int_38| |v_main_#t~malloc5.base_3|) .cse0))))), (= (select (select (let ((.cse0 (store |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.base_3|)))) (store .cse0 |v_main_#t~malloc5.base_3| (store (select .cse0 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.base_28))) v_main_~x~0.base_28) v_main_~x~0.offset_28) v_main_~x~0.base_27), (<= |v_main_#t~nondet8_7| 2147483647), (> |v_main_#t~nondet4_7| 0), (< v_main_~x~0.offset_27 0), (= |v_main_#t~malloc5.offset_3| 0), (= (select (select (let ((.cse0 (store |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.offset_3|)))) (store .cse0 |v_main_#t~malloc5.base_3| (store (select .cse0 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.offset_28))) v_main_~x~0.base_28) v_main_~x~0.offset_28) v_main_~x~0.offset_27), (= |v_#memory_int_40| (store |v_#memory_int_38| v_main_~x~0.base_27 (store (select |v_#memory_int_38| v_main_~x~0.base_27) v_main_~x~0.offset_27 (select (select |v_#memory_int_40| v_main_~x~0.base_27) v_main_~x~0.offset_27))))] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: cannot bring into simultaneous update form #memory_$Pointer$.base's outvar occurs in several conjuncts [(<= 0 (+ |v_main_#t~nondet4_7| 2147483648)), (= (let ((.cse0 (let ((.cse2 (store |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.base_3|)))) (store .cse2 |v_main_#t~malloc5.base_3| (store (select .cse2 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.base_28))))) (store .cse0 v_main_~x~0.base_27 (let ((.cse1 (+ v_main_~x~0.offset_27 8))) (store (store (select .cse0 v_main_~x~0.base_27) v_main_~x~0.offset_27 v_main_~head~0.base_10) .cse1 (select (select |v_#memory_$Pointer$.base_25| v_main_~x~0.base_27) .cse1))))) |v_#memory_$Pointer$.base_25|), (= (let ((.cse0 (let ((.cse2 (store |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.offset_3|)))) (store .cse2 |v_main_#t~malloc5.base_3| (store (select .cse2 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.offset_28))))) (store .cse0 v_main_~x~0.base_27 (let ((.cse1 (+ v_main_~x~0.offset_27 8))) (store (store (select .cse0 v_main_~x~0.base_27) v_main_~x~0.offset_27 v_main_~head~0.offset_10) .cse1 (select (select |v_#memory_$Pointer$.offset_25| v_main_~x~0.base_27) .cse1))))) |v_#memory_$Pointer$.offset_25|), (= (store |v_#memory_int_40| v_main_~x~0.base_27 (store (select |v_#memory_int_40| v_main_~x~0.base_27) (+ v_main_~x~0.offset_27 8) v_main_~state~0_10)) |v_#memory_int_24|), (= |v_main_#t~nondet8_7| 0), (= |v_#length_13| (store |v_#length_14| |v_main_#t~malloc5.base_3| 12)), (= (select |v_#valid_20| |v_main_#t~malloc5.base_3|) 0), (= |v_#memory_int_39| (store |v_#memory_int_28| v_main_~x~0.base_28 (store (select |v_#memory_int_28| v_main_~x~0.base_28) v_main_~x~0.offset_28 (select (select |v_#memory_int_39| v_main_~x~0.base_28) v_main_~x~0.offset_28)))), (< |v_main_#t~malloc5.base_3| |v_#StackHeapBarrier_6|), (< |v_main_#t~malloc5.base_3| 0), (<= 0 (+ |v_main_#t~nondet8_7| 2147483648)), (= |v_#valid_19| (store |v_#valid_20| |v_main_#t~malloc5.base_3| 1)), (<= |v_main_#t~nondet4_7| 2147483647), (= |v_#memory_int_38| (store |v_#memory_int_39| |v_main_#t~malloc5.base_3| (let ((.cse0 (+ |v_main_#t~malloc5.offset_3| 4))) (store (select |v_#memory_int_39| |v_main_#t~malloc5.base_3|) .cse0 (select (select |v_#memory_int_38| |v_main_#t~malloc5.base_3|) .cse0))))), (= (select (select (let ((.cse0 (store |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.base_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.base_3|)))) (store .cse0 |v_main_#t~malloc5.base_3| (store (select .cse0 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.base_28))) v_main_~x~0.base_28) v_main_~x~0.offset_28) v_main_~x~0.base_27), (<= |v_main_#t~nondet8_7| 2147483647), (> |v_main_#t~nondet4_7| 0), (< v_main_~x~0.offset_27 0), (= |v_main_#t~malloc5.offset_3| 0), (= (select (select (let ((.cse0 (store |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28 (store (select |v_#memory_$Pointer$.offset_29| v_main_~x~0.base_28) v_main_~x~0.offset_28 |v_main_#t~malloc5.offset_3|)))) (store .cse0 |v_main_#t~malloc5.base_3| (store (select .cse0 |v_main_#t~malloc5.base_3|) (+ |v_main_#t~malloc5.offset_3| 4) v_main_~x~0.offset_28))) v_main_~x~0.base_28) v_main_~x~0.offset_28) v_main_~x~0.offset_27), (= |v_#memory_int_40| (store |v_#memory_int_38| v_main_~x~0.base_27 (store (select |v_#memory_int_38| v_main_~x~0.base_27) v_main_~x~0.offset_27 (select (select |v_#memory_int_40| v_main_~x~0.base_27) v_main_~x~0.offset_27))))]: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:107) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...