/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 19:04:37,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 19:04:37,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 19:04:37,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 19:04:37,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 19:04:37,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 19:04:37,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 19:04:37,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 19:04:37,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 19:04:37,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 19:04:37,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 19:04:37,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 19:04:37,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 19:04:37,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 19:04:37,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 19:04:37,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 19:04:37,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 19:04:37,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 19:04:37,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 19:04:37,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 19:04:37,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 19:04:37,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 19:04:37,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 19:04:37,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 19:04:37,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-10 19:04:37,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-10 19:04:37,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-10 19:04:37,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-10 19:04:37,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-10 19:04:37,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-10 19:04:37,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 19:04:37,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 19:04:37,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 19:04:37,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 19:04:37,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 19:04:37,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 19:04:37,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 19:04:37,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 19:04:37,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 19:04:37,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 19:04:37,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 19:04:37,764 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 19:04:37,773 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 19:04:37,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 19:04:37,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 19:04:37,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 19:04:37,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 19:04:37,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 19:04:37,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 19:04:37,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 19:04:37,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 19:04:37,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 19:04:37,776 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 19:04:37,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 19:04:37,777 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 19:04:37,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 19:04:37,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 19:04:37,777 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 19:04:37,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 19:04:37,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 19:04:37,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 19:04:37,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 19:04:37,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 19:04:37,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 19:04:37,779 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 19:04:38,069 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 19:04:38,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 19:04:38,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 19:04:38,088 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 19:04:38,089 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 19:04:38,089 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i [2020-07-10 19:04:38,165 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c78ac4bf/05339653c89442978e12534a2a7c6c7d/FLAG762303121 [2020-07-10 19:04:38,790 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 19:04:38,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext-properties/simple-ext.i [2020-07-10 19:04:38,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c78ac4bf/05339653c89442978e12534a2a7c6c7d/FLAG762303121 [2020-07-10 19:04:39,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c78ac4bf/05339653c89442978e12534a2a7c6c7d [2020-07-10 19:04:39,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 19:04:39,081 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 19:04:39,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 19:04:39,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 19:04:39,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 19:04:39,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 07:04:39" (1/1) ... [2020-07-10 19:04:39,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73dd4775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:39, skipping insertion in model container [2020-07-10 19:04:39,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 07:04:39" (1/1) ... [2020-07-10 19:04:39,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 19:04:39,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 19:04:39,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 19:04:39,635 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 19:04:39,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 19:04:39,736 INFO L208 MainTranslator]: Completed translation [2020-07-10 19:04:39,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:39 WrapperNode [2020-07-10 19:04:39,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 19:04:39,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 19:04:39,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 19:04:39,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 19:04:39,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:39" (1/1) ... [2020-07-10 19:04:39,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:39" (1/1) ... [2020-07-10 19:04:39,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:39" (1/1) ... [2020-07-10 19:04:39,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:39" (1/1) ... [2020-07-10 19:04:39,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:39" (1/1) ... [2020-07-10 19:04:39,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:39" (1/1) ... [2020-07-10 19:04:39,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:39" (1/1) ... [2020-07-10 19:04:39,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 19:04:39,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 19:04:39,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 19:04:39,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 19:04:39,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 19:04:39,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 19:04:39,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 19:04:39,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-10 19:04:39,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-10 19:04:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-07-10 19:04:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-07-10 19:04:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-07-10 19:04:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-07-10 19:04:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 19:04:39,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 19:04:39,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 19:04:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-10 19:04:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-10 19:04:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-10 19:04:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-10 19:04:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-10 19:04:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-10 19:04:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-10 19:04:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-10 19:04:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-10 19:04:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-10 19:04:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-10 19:04:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-10 19:04:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-10 19:04:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-10 19:04:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-10 19:04:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-10 19:04:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-10 19:04:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-10 19:04:39,877 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-07-10 19:04:39,877 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-07-10 19:04:39,877 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-07-10 19:04:39,877 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-10 19:04:39,877 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-10 19:04:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-10 19:04:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-10 19:04:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-10 19:04:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-10 19:04:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-10 19:04:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-10 19:04:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-10 19:04:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-10 19:04:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-10 19:04:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-10 19:04:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-10 19:04:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-10 19:04:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-10 19:04:39,880 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-10 19:04:39,880 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-10 19:04:39,880 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-10 19:04:39,880 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-10 19:04:39,880 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-10 19:04:39,880 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-10 19:04:39,880 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-10 19:04:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-10 19:04:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-10 19:04:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-10 19:04:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-10 19:04:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-10 19:04:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-10 19:04:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-10 19:04:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-10 19:04:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-10 19:04:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-10 19:04:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-10 19:04:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-10 19:04:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-10 19:04:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-10 19:04:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-10 19:04:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-10 19:04:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-10 19:04:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-10 19:04:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-10 19:04:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-10 19:04:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 19:04:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-10 19:04:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-10 19:04:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-10 19:04:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-10 19:04:39,884 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-10 19:04:39,884 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-10 19:04:39,884 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-10 19:04:39,884 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-10 19:04:39,884 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-10 19:04:39,884 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-10 19:04:39,884 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-10 19:04:39,885 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-10 19:04:39,885 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-10 19:04:39,885 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-10 19:04:39,885 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-10 19:04:39,885 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-10 19:04:39,885 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-10 19:04:39,886 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-10 19:04:39,886 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-10 19:04:39,886 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-10 19:04:39,886 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-10 19:04:39,886 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-10 19:04:39,886 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-10 19:04:39,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-10 19:04:39,886 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-10 19:04:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-10 19:04:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-10 19:04:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-10 19:04:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-10 19:04:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-10 19:04:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-10 19:04:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-10 19:04:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-10 19:04:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-10 19:04:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-10 19:04:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-10 19:04:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-10 19:04:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-10 19:04:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-10 19:04:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-10 19:04:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-10 19:04:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-10 19:04:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-10 19:04:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-07-10 19:04:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 19:04:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-10 19:04:39,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 19:04:39,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-10 19:04:39,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-10 19:04:39,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 19:04:39,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 19:04:39,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 19:04:39,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 19:04:40,282 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-07-10 19:04:40,580 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 19:04:40,581 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-10 19:04:40,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 07:04:40 BoogieIcfgContainer [2020-07-10 19:04:40,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 19:04:40,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 19:04:40,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 19:04:40,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 19:04:40,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 07:04:39" (1/3) ... [2020-07-10 19:04:40,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@172183ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 07:04:40, skipping insertion in model container [2020-07-10 19:04:40,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:39" (2/3) ... [2020-07-10 19:04:40,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@172183ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 07:04:40, skipping insertion in model container [2020-07-10 19:04:40,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 07:04:40" (3/3) ... [2020-07-10 19:04:40,593 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-ext.i [2020-07-10 19:04:40,604 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 19:04:40,612 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 19:04:40,622 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 19:04:40,639 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 19:04:40,639 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 19:04:40,640 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 19:04:40,640 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 19:04:40,640 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 19:04:40,640 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 19:04:40,641 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 19:04:40,641 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 19:04:40,657 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2020-07-10 19:04:40,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-10 19:04:40,671 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:40,672 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] [2020-07-10 19:04:40,673 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 19:04:40,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:40,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1527556188, now seen corresponding path program 1 times [2020-07-10 19:04:40,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:40,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417006829] [2020-07-10 19:04:40,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:40,931 INFO L280 TraceCheckUtils]: 0: Hoare triple {76#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {69#true} is VALID [2020-07-10 19:04:40,931 INFO L280 TraceCheckUtils]: 1: Hoare triple {69#true} #valid := #valid[0 := 0]; {69#true} is VALID [2020-07-10 19:04:40,932 INFO L280 TraceCheckUtils]: 2: Hoare triple {69#true} assume 0 < #StackHeapBarrier; {69#true} is VALID [2020-07-10 19:04:40,933 INFO L280 TraceCheckUtils]: 3: Hoare triple {69#true} assume true; {69#true} is VALID [2020-07-10 19:04:40,933 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {69#true} {69#true} #142#return; {69#true} is VALID [2020-07-10 19:04:40,937 INFO L263 TraceCheckUtils]: 0: Hoare triple {69#true} call ULTIMATE.init(); {76#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:04:40,938 INFO L280 TraceCheckUtils]: 1: Hoare triple {76#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {69#true} is VALID [2020-07-10 19:04:40,938 INFO L280 TraceCheckUtils]: 2: Hoare triple {69#true} #valid := #valid[0 := 0]; {69#true} is VALID [2020-07-10 19:04:40,938 INFO L280 TraceCheckUtils]: 3: Hoare triple {69#true} assume 0 < #StackHeapBarrier; {69#true} is VALID [2020-07-10 19:04:40,939 INFO L280 TraceCheckUtils]: 4: Hoare triple {69#true} assume true; {69#true} is VALID [2020-07-10 19:04:40,939 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {69#true} {69#true} #142#return; {69#true} is VALID [2020-07-10 19:04:40,940 INFO L263 TraceCheckUtils]: 6: Hoare triple {69#true} call #t~ret12 := main(); {69#true} is VALID [2020-07-10 19:04:40,940 INFO L280 TraceCheckUtils]: 7: Hoare triple {69#true} SUMMARY for call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {69#true} is VALID [2020-07-10 19:04:40,941 INFO L280 TraceCheckUtils]: 8: Hoare triple {69#true} ~a~0.base, ~a~0.offset := #t~malloc2.base, #t~malloc2.offset; {69#true} is VALID [2020-07-10 19:04:40,941 INFO L280 TraceCheckUtils]: 9: Hoare triple {69#true} assume !(~a~0.base == 0 && ~a~0.offset == 0); {69#true} is VALID [2020-07-10 19:04:40,941 INFO L280 TraceCheckUtils]: 10: Hoare triple {69#true} havoc ~t~0.base, ~t~0.offset; {69#true} is VALID [2020-07-10 19:04:40,942 INFO L280 TraceCheckUtils]: 11: Hoare triple {69#true} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {69#true} is VALID [2020-07-10 19:04:40,942 INFO L280 TraceCheckUtils]: 12: Hoare triple {69#true} ~i~0 := 0; {69#true} is VALID [2020-07-10 19:04:40,943 INFO L280 TraceCheckUtils]: 13: Hoare triple {69#true} assume !true; {70#false} is VALID [2020-07-10 19:04:40,944 INFO L280 TraceCheckUtils]: 14: Hoare triple {70#false} SUMMARY for call write~int(~i~0, ~p~0.base, ~p~0.offset, 4); srcloc: L526-12 {70#false} is VALID [2020-07-10 19:04:40,944 INFO L280 TraceCheckUtils]: 15: Hoare triple {70#false} SUMMARY for call write~$Pointer$(0, 0, ~p~0.base, 4 + ~p~0.offset, 4); srcloc: L534 {70#false} is VALID [2020-07-10 19:04:40,959 INFO L280 TraceCheckUtils]: 16: Hoare triple {70#false} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {70#false} is VALID [2020-07-10 19:04:40,959 INFO L280 TraceCheckUtils]: 17: Hoare triple {70#false} ~i~0 := 0; {70#false} is VALID [2020-07-10 19:04:40,960 INFO L280 TraceCheckUtils]: 18: Hoare triple {70#false} assume !!(~p~0.base != 0 || ~p~0.offset != 0); {70#false} is VALID [2020-07-10 19:04:40,962 INFO L280 TraceCheckUtils]: 19: Hoare triple {70#false} SUMMARY for call #t~mem8 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L539 {70#false} is VALID [2020-07-10 19:04:40,963 INFO L280 TraceCheckUtils]: 20: Hoare triple {70#false} assume 1 != #t~mem8; {70#false} is VALID [2020-07-10 19:04:40,963 INFO L280 TraceCheckUtils]: 21: Hoare triple {70#false} havoc #t~mem8; {70#false} is VALID [2020-07-10 19:04:40,963 INFO L280 TraceCheckUtils]: 22: Hoare triple {70#false} assume !false; {70#false} is VALID [2020-07-10 19:04:40,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:40,967 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:40,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417006829] [2020-07-10 19:04:40,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:40,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-10 19:04:40,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663709361] [2020-07-10 19:04:40,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-10 19:04:40,982 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:40,986 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-10 19:04:41,030 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:41,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-10 19:04:41,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:41,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-10 19:04:41,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 19:04:41,043 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 3 states. [2020-07-10 19:04:41,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:41,345 INFO L93 Difference]: Finished difference Result 95 states and 108 transitions. [2020-07-10 19:04:41,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-10 19:04:41,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-10 19:04:41,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:41,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 19:04:41,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2020-07-10 19:04:41,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 19:04:41,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2020-07-10 19:04:41,367 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 108 transitions. [2020-07-10 19:04:41,498 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 108 edges. 108 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:41,525 INFO L225 Difference]: With dead ends: 95 [2020-07-10 19:04:41,526 INFO L226 Difference]: Without dead ends: 50 [2020-07-10 19:04:41,531 INFO L675 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 [2020-07-10 19:04:41,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-07-10 19:04:41,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-07-10 19:04:41,600 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:41,601 INFO L82 GeneralOperation]: Start isEquivalent. First operand 50 states. Second operand 50 states. [2020-07-10 19:04:41,601 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand 50 states. [2020-07-10 19:04:41,602 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 50 states. [2020-07-10 19:04:41,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:41,612 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2020-07-10 19:04:41,612 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2020-07-10 19:04:41,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:41,614 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:41,614 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand 50 states. [2020-07-10 19:04:41,615 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 50 states. [2020-07-10 19:04:41,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:41,625 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2020-07-10 19:04:41,625 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2020-07-10 19:04:41,626 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:41,626 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:41,626 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:41,627 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:41,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-07-10 19:04:41,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2020-07-10 19:04:41,639 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 23 [2020-07-10 19:04:41,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:41,639 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2020-07-10 19:04:41,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-10 19:04:41,639 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 50 states and 52 transitions. [2020-07-10 19:04:41,695 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 52 edges. 52 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:41,695 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2020-07-10 19:04:41,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-10 19:04:41,696 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:41,696 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] [2020-07-10 19:04:41,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 19:04:41,697 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 19:04:41,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:41,698 INFO L82 PathProgramCache]: Analyzing trace with hash 2054563523, now seen corresponding path program 1 times [2020-07-10 19:04:41,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:41,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952057201] [2020-07-10 19:04:41,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:41,879 INFO L280 TraceCheckUtils]: 0: Hoare triple {478#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {469#true} is VALID [2020-07-10 19:04:41,879 INFO L280 TraceCheckUtils]: 1: Hoare triple {469#true} #valid := #valid[0 := 0]; {469#true} is VALID [2020-07-10 19:04:41,880 INFO L280 TraceCheckUtils]: 2: Hoare triple {469#true} assume 0 < #StackHeapBarrier; {469#true} is VALID [2020-07-10 19:04:41,882 INFO L280 TraceCheckUtils]: 3: Hoare triple {469#true} assume true; {469#true} is VALID [2020-07-10 19:04:41,882 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {469#true} {469#true} #142#return; {469#true} is VALID [2020-07-10 19:04:41,884 INFO L263 TraceCheckUtils]: 0: Hoare triple {469#true} call ULTIMATE.init(); {478#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:04:41,885 INFO L280 TraceCheckUtils]: 1: Hoare triple {478#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {469#true} is VALID [2020-07-10 19:04:41,885 INFO L280 TraceCheckUtils]: 2: Hoare triple {469#true} #valid := #valid[0 := 0]; {469#true} is VALID [2020-07-10 19:04:41,885 INFO L280 TraceCheckUtils]: 3: Hoare triple {469#true} assume 0 < #StackHeapBarrier; {469#true} is VALID [2020-07-10 19:04:41,886 INFO L280 TraceCheckUtils]: 4: Hoare triple {469#true} assume true; {469#true} is VALID [2020-07-10 19:04:41,886 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {469#true} {469#true} #142#return; {469#true} is VALID [2020-07-10 19:04:41,890 INFO L263 TraceCheckUtils]: 6: Hoare triple {469#true} call #t~ret12 := main(); {469#true} is VALID [2020-07-10 19:04:41,892 INFO L280 TraceCheckUtils]: 7: Hoare triple {469#true} SUMMARY for call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {469#true} is VALID [2020-07-10 19:04:41,893 INFO L280 TraceCheckUtils]: 8: Hoare triple {469#true} ~a~0.base, ~a~0.offset := #t~malloc2.base, #t~malloc2.offset; {469#true} is VALID [2020-07-10 19:04:41,893 INFO L280 TraceCheckUtils]: 9: Hoare triple {469#true} assume !(~a~0.base == 0 && ~a~0.offset == 0); {469#true} is VALID [2020-07-10 19:04:41,894 INFO L280 TraceCheckUtils]: 10: Hoare triple {469#true} havoc ~t~0.base, ~t~0.offset; {469#true} is VALID [2020-07-10 19:04:41,894 INFO L280 TraceCheckUtils]: 11: Hoare triple {469#true} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {469#true} is VALID [2020-07-10 19:04:41,899 INFO L280 TraceCheckUtils]: 12: Hoare triple {469#true} ~i~0 := 0; {476#(= 0 main_~i~0)} is VALID [2020-07-10 19:04:41,901 INFO L280 TraceCheckUtils]: 13: Hoare triple {476#(= 0 main_~i~0)} #t~short4 := ~i~0 < 30; {477#|main_#t~short4|} is VALID [2020-07-10 19:04:41,902 INFO L280 TraceCheckUtils]: 14: Hoare triple {477#|main_#t~short4|} assume !#t~short4; {470#false} is VALID [2020-07-10 19:04:41,902 INFO L280 TraceCheckUtils]: 15: Hoare triple {470#false} assume !#t~short4; {470#false} is VALID [2020-07-10 19:04:41,903 INFO L280 TraceCheckUtils]: 16: Hoare triple {470#false} havoc #t~short4; {470#false} is VALID [2020-07-10 19:04:41,905 INFO L280 TraceCheckUtils]: 17: Hoare triple {470#false} havoc #t~nondet3; {470#false} is VALID [2020-07-10 19:04:41,906 INFO L280 TraceCheckUtils]: 18: Hoare triple {470#false} SUMMARY for call write~int(~i~0, ~p~0.base, ~p~0.offset, 4); srcloc: L526-12 {470#false} is VALID [2020-07-10 19:04:41,906 INFO L280 TraceCheckUtils]: 19: Hoare triple {470#false} SUMMARY for call write~$Pointer$(0, 0, ~p~0.base, 4 + ~p~0.offset, 4); srcloc: L534 {470#false} is VALID [2020-07-10 19:04:41,907 INFO L280 TraceCheckUtils]: 20: Hoare triple {470#false} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {470#false} is VALID [2020-07-10 19:04:41,907 INFO L280 TraceCheckUtils]: 21: Hoare triple {470#false} ~i~0 := 0; {470#false} is VALID [2020-07-10 19:04:41,911 INFO L280 TraceCheckUtils]: 22: Hoare triple {470#false} assume !!(~p~0.base != 0 || ~p~0.offset != 0); {470#false} is VALID [2020-07-10 19:04:41,911 INFO L280 TraceCheckUtils]: 23: Hoare triple {470#false} SUMMARY for call #t~mem8 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L539 {470#false} is VALID [2020-07-10 19:04:41,912 INFO L280 TraceCheckUtils]: 24: Hoare triple {470#false} assume 1 != #t~mem8; {470#false} is VALID [2020-07-10 19:04:41,914 INFO L280 TraceCheckUtils]: 25: Hoare triple {470#false} havoc #t~mem8; {470#false} is VALID [2020-07-10 19:04:41,915 INFO L280 TraceCheckUtils]: 26: Hoare triple {470#false} assume !false; {470#false} is VALID [2020-07-10 19:04:41,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:41,917 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:41,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952057201] [2020-07-10 19:04:41,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:41,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 19:04:41,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110790599] [2020-07-10 19:04:41,920 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-10 19:04:41,921 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:41,921 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 19:04:41,968 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:41,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 19:04:41,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:41,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 19:04:41,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 19:04:41,969 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand 5 states. [2020-07-10 19:04:42,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:42,392 INFO L93 Difference]: Finished difference Result 122 states and 128 transitions. [2020-07-10 19:04:42,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 19:04:42,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-10 19:04:42,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:42,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 19:04:42,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 128 transitions. [2020-07-10 19:04:42,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 19:04:42,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 128 transitions. [2020-07-10 19:04:42,402 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 128 transitions. [2020-07-10 19:04:42,528 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 128 edges. 128 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:42,535 INFO L225 Difference]: With dead ends: 122 [2020-07-10 19:04:42,535 INFO L226 Difference]: Without dead ends: 85 [2020-07-10 19:04:42,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-10 19:04:42,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-07-10 19:04:42,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 52. [2020-07-10 19:04:42,565 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:42,565 INFO L82 GeneralOperation]: Start isEquivalent. First operand 85 states. Second operand 52 states. [2020-07-10 19:04:42,565 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 52 states. [2020-07-10 19:04:42,566 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 52 states. [2020-07-10 19:04:42,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:42,570 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2020-07-10 19:04:42,570 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2020-07-10 19:04:42,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:42,572 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:42,572 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 85 states. [2020-07-10 19:04:42,572 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 85 states. [2020-07-10 19:04:42,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:42,576 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2020-07-10 19:04:42,576 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2020-07-10 19:04:42,577 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:42,578 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:42,578 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:42,578 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:42,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-07-10 19:04:42,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2020-07-10 19:04:42,581 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 27 [2020-07-10 19:04:42,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:42,581 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2020-07-10 19:04:42,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 19:04:42,581 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 52 states and 54 transitions. [2020-07-10 19:04:42,637 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:42,637 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2020-07-10 19:04:42,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-10 19:04:42,638 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:42,639 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] [2020-07-10 19:04:42,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 19:04:42,639 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 19:04:42,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:42,639 INFO L82 PathProgramCache]: Analyzing trace with hash -2100491616, now seen corresponding path program 1 times [2020-07-10 19:04:42,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:42,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723191721] [2020-07-10 19:04:42,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 19:04:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 19:04:42,751 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:42,752 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-10 19:04:42,752 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 19:04:42,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-10 19:04:42,769 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 19:04:42,770 WARN L170 areAnnotationChecker]: myexitENTRY has no Hoare annotation [2020-07-10 19:04:42,770 WARN L170 areAnnotationChecker]: __bswap_32ENTRY has no Hoare annotation [2020-07-10 19:04:42,770 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 19:04:42,770 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 19:04:42,770 WARN L170 areAnnotationChecker]: __bswap_64ENTRY has no Hoare annotation [2020-07-10 19:04:42,770 WARN L170 areAnnotationChecker]: __uint16_identityENTRY has no Hoare annotation [2020-07-10 19:04:42,771 WARN L170 areAnnotationChecker]: __uint64_identityENTRY has no Hoare annotation [2020-07-10 19:04:42,771 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 19:04:42,771 WARN L170 areAnnotationChecker]: __uint32_identityENTRY has no Hoare annotation [2020-07-10 19:04:42,771 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:04:42,771 WARN L170 areAnnotationChecker]: L514 has no Hoare annotation [2020-07-10 19:04:42,771 WARN L170 areAnnotationChecker]: L164 has no Hoare annotation [2020-07-10 19:04:42,771 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:04:42,771 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:04:42,772 WARN L170 areAnnotationChecker]: L169 has no Hoare annotation [2020-07-10 19:04:42,772 WARN L170 areAnnotationChecker]: L174 has no Hoare annotation [2020-07-10 19:04:42,772 WARN L170 areAnnotationChecker]: L184 has no Hoare annotation [2020-07-10 19:04:42,772 WARN L170 areAnnotationChecker]: L521 has no Hoare annotation [2020-07-10 19:04:42,772 WARN L170 areAnnotationChecker]: L179 has no Hoare annotation [2020-07-10 19:04:42,772 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-10 19:04:42,772 WARN L170 areAnnotationChecker]: L164-1 has no Hoare annotation [2020-07-10 19:04:42,773 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 19:04:42,773 WARN L170 areAnnotationChecker]: L169-1 has no Hoare annotation [2020-07-10 19:04:42,773 WARN L170 areAnnotationChecker]: __uint16_identityFINAL has no Hoare annotation [2020-07-10 19:04:42,773 WARN L170 areAnnotationChecker]: __uint64_identityFINAL has no Hoare annotation [2020-07-10 19:04:42,773 WARN L170 areAnnotationChecker]: L522 has no Hoare annotation [2020-07-10 19:04:42,773 WARN L170 areAnnotationChecker]: L522 has no Hoare annotation [2020-07-10 19:04:42,773 WARN L170 areAnnotationChecker]: __uint32_identityFINAL has no Hoare annotation [2020-07-10 19:04:42,773 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 19:04:42,774 WARN L170 areAnnotationChecker]: __bswap_32FINAL has no Hoare annotation [2020-07-10 19:04:42,774 WARN L170 areAnnotationChecker]: __bswap_64FINAL has no Hoare annotation [2020-07-10 19:04:42,774 WARN L170 areAnnotationChecker]: L522-1 has no Hoare annotation [2020-07-10 19:04:42,774 WARN L170 areAnnotationChecker]: L522-1 has no Hoare annotation [2020-07-10 19:04:42,775 WARN L170 areAnnotationChecker]: L522-3 has no Hoare annotation [2020-07-10 19:04:42,775 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 19:04:42,775 WARN L170 areAnnotationChecker]: L524 has no Hoare annotation [2020-07-10 19:04:42,782 WARN L170 areAnnotationChecker]: L525 has no Hoare annotation [2020-07-10 19:04:42,782 WARN L170 areAnnotationChecker]: L526-11 has no Hoare annotation [2020-07-10 19:04:42,782 WARN L170 areAnnotationChecker]: L526-11 has no Hoare annotation [2020-07-10 19:04:42,782 WARN L170 areAnnotationChecker]: L526-12 has no Hoare annotation [2020-07-10 19:04:42,782 WARN L170 areAnnotationChecker]: L526-1 has no Hoare annotation [2020-07-10 19:04:42,782 WARN L170 areAnnotationChecker]: L526-1 has no Hoare annotation [2020-07-10 19:04:42,783 WARN L170 areAnnotationChecker]: L534 has no Hoare annotation [2020-07-10 19:04:42,783 WARN L170 areAnnotationChecker]: L526-2 has no Hoare annotation [2020-07-10 19:04:42,783 WARN L170 areAnnotationChecker]: L526-5 has no Hoare annotation [2020-07-10 19:04:42,783 WARN L170 areAnnotationChecker]: L526-5 has no Hoare annotation [2020-07-10 19:04:42,783 WARN L170 areAnnotationChecker]: L535 has no Hoare annotation [2020-07-10 19:04:42,783 WARN L170 areAnnotationChecker]: L526-3 has no Hoare annotation [2020-07-10 19:04:42,783 WARN L170 areAnnotationChecker]: L526-6 has no Hoare annotation [2020-07-10 19:04:42,783 WARN L170 areAnnotationChecker]: L526-9 has no Hoare annotation [2020-07-10 19:04:42,783 WARN L170 areAnnotationChecker]: L537 has no Hoare annotation [2020-07-10 19:04:42,784 WARN L170 areAnnotationChecker]: L526-7 has no Hoare annotation [2020-07-10 19:04:42,784 WARN L170 areAnnotationChecker]: L526-10 has no Hoare annotation [2020-07-10 19:04:42,784 WARN L170 areAnnotationChecker]: L538-2 has no Hoare annotation [2020-07-10 19:04:42,784 WARN L170 areAnnotationChecker]: L538-2 has no Hoare annotation [2020-07-10 19:04:42,784 WARN L170 areAnnotationChecker]: L538-2 has no Hoare annotation [2020-07-10 19:04:42,784 WARN L170 areAnnotationChecker]: L527 has no Hoare annotation [2020-07-10 19:04:42,784 WARN L170 areAnnotationChecker]: L538-3 has no Hoare annotation [2020-07-10 19:04:42,784 WARN L170 areAnnotationChecker]: L539 has no Hoare annotation [2020-07-10 19:04:42,784 WARN L170 areAnnotationChecker]: L527-1 has no Hoare annotation [2020-07-10 19:04:42,784 WARN L170 areAnnotationChecker]: L546-2 has no Hoare annotation [2020-07-10 19:04:42,784 WARN L170 areAnnotationChecker]: L546-2 has no Hoare annotation [2020-07-10 19:04:42,784 WARN L170 areAnnotationChecker]: L546-2 has no Hoare annotation [2020-07-10 19:04:42,784 WARN L170 areAnnotationChecker]: L539-1 has no Hoare annotation [2020-07-10 19:04:42,785 WARN L170 areAnnotationChecker]: L539-1 has no Hoare annotation [2020-07-10 19:04:42,785 WARN L170 areAnnotationChecker]: L528 has no Hoare annotation [2020-07-10 19:04:42,785 WARN L170 areAnnotationChecker]: L546-3 has no Hoare annotation [2020-07-10 19:04:42,785 WARN L170 areAnnotationChecker]: L547 has no Hoare annotation [2020-07-10 19:04:42,785 WARN L170 areAnnotationChecker]: L539-2 has no Hoare annotation [2020-07-10 19:04:42,785 WARN L170 areAnnotationChecker]: L539-4 has no Hoare annotation [2020-07-10 19:04:42,785 WARN L170 areAnnotationChecker]: L529 has no Hoare annotation [2020-07-10 19:04:42,785 WARN L170 areAnnotationChecker]: L529 has no Hoare annotation [2020-07-10 19:04:42,785 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 19:04:42,785 WARN L170 areAnnotationChecker]: L547-1 has no Hoare annotation [2020-07-10 19:04:42,785 WARN L170 areAnnotationChecker]: L540 has no Hoare annotation [2020-07-10 19:04:42,785 WARN L170 areAnnotationChecker]: L540 has no Hoare annotation [2020-07-10 19:04:42,785 WARN L170 areAnnotationChecker]: L539-5 has no Hoare annotation [2020-07-10 19:04:42,786 WARN L170 areAnnotationChecker]: L529-1 has no Hoare annotation [2020-07-10 19:04:42,786 WARN L170 areAnnotationChecker]: L529-1 has no Hoare annotation [2020-07-10 19:04:42,786 WARN L170 areAnnotationChecker]: L529-3 has no Hoare annotation [2020-07-10 19:04:42,786 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 19:04:42,786 WARN L170 areAnnotationChecker]: L547-2 has no Hoare annotation [2020-07-10 19:04:42,786 WARN L170 areAnnotationChecker]: L542 has no Hoare annotation [2020-07-10 19:04:42,786 WARN L170 areAnnotationChecker]: L530 has no Hoare annotation [2020-07-10 19:04:42,786 WARN L170 areAnnotationChecker]: L548 has no Hoare annotation [2020-07-10 19:04:42,786 WARN L170 areAnnotationChecker]: L542-1 has no Hoare annotation [2020-07-10 19:04:42,786 WARN L170 areAnnotationChecker]: L531 has no Hoare annotation [2020-07-10 19:04:42,786 WARN L170 areAnnotationChecker]: L548-1 has no Hoare annotation [2020-07-10 19:04:42,786 WARN L170 areAnnotationChecker]: L543 has no Hoare annotation [2020-07-10 19:04:42,786 WARN L170 areAnnotationChecker]: L531-1 has no Hoare annotation [2020-07-10 19:04:42,787 WARN L170 areAnnotationChecker]: L543-1 has no Hoare annotation [2020-07-10 19:04:42,787 WARN L170 areAnnotationChecker]: L532 has no Hoare annotation [2020-07-10 19:04:42,787 WARN L170 areAnnotationChecker]: L543-2 has no Hoare annotation [2020-07-10 19:04:42,787 WARN L170 areAnnotationChecker]: L532-1 has no Hoare annotation [2020-07-10 19:04:42,787 WARN L170 areAnnotationChecker]: L532-2 has no Hoare annotation [2020-07-10 19:04:42,787 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 19:04:42,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 07:04:42 BoogieIcfgContainer [2020-07-10 19:04:42,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 19:04:42,794 INFO L168 Benchmark]: Toolchain (without parser) took 3711.73 ms. Allocated memory was 134.2 MB in the beginning and 258.5 MB in the end (delta: 124.3 MB). Free memory was 97.7 MB in the beginning and 132.4 MB in the end (delta: -34.7 MB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:42,795 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 134.2 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-10 19:04:42,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.15 ms. Allocated memory was 134.2 MB in the beginning and 198.2 MB in the end (delta: 64.0 MB). Free memory was 97.5 MB in the beginning and 161.3 MB in the end (delta: -63.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:42,797 INFO L168 Benchmark]: Boogie Preprocessor took 70.75 ms. Allocated memory is still 198.2 MB. Free memory was 161.3 MB in the beginning and 157.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:42,797 INFO L168 Benchmark]: RCFGBuilder took 777.69 ms. Allocated memory is still 198.2 MB. Free memory was 157.7 MB in the beginning and 98.1 MB in the end (delta: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:42,798 INFO L168 Benchmark]: TraceAbstraction took 2203.71 ms. Allocated memory was 198.2 MB in the beginning and 258.5 MB in the end (delta: 60.3 MB). Free memory was 97.4 MB in the beginning and 132.4 MB in the end (delta: -35.0 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:42,802 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 134.2 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 654.15 ms. Allocated memory was 134.2 MB in the beginning and 198.2 MB in the end (delta: 64.0 MB). Free memory was 97.5 MB in the beginning and 161.3 MB in the end (delta: -63.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.75 ms. Allocated memory is still 198.2 MB. Free memory was 161.3 MB in the beginning and 157.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 777.69 ms. Allocated memory is still 198.2 MB. Free memory was 157.7 MB in the beginning and 98.1 MB in the end (delta: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2203.71 ms. Allocated memory was 198.2 MB in the beginning and 258.5 MB in the end (delta: 60.3 MB). Free memory was 97.4 MB in the beginning and 132.4 MB in the end (delta: -35.0 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 540]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L521] List a = (List) malloc(sizeof(struct node)); [L522] COND FALSE !(a == 0) [L523] List t; [L524] List p = a; [L525] int i = 0; [L526] i < 30 && __VERIFIER_nondet_int() [L526] i < 30 && __VERIFIER_nondet_int() [L526] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L534] p->h = i [L535] p->n = 0 [L536] p = a [L537] i = 0 [L538] COND TRUE p!=0 [L539] EXPR p->h [L539] COND TRUE p->h != 1 [L540] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 115 SDtfs, 38 SDslu, 88 SDs, 0 SdLazy, 134 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 33 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...