/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/ldv-regression/alt_test.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:20:20,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:20:20,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:20:20,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:20:20,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:20:20,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:20:20,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:20:20,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:20:20,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:20:20,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:20:20,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:20:20,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:20:20,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:20:20,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:20:20,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:20:20,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:20:20,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:20:20,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:20:20,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:20:20,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:20:20,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:20:20,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:20:20,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:20:20,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:20:20,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 00:20:20,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 00:20:20,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 00:20:20,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 00:20:20,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 00:20:20,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 00:20:20,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 00:20:20,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 00:20:20,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 00:20:20,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 00:20:20,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 00:20:20,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 00:20:20,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 00:20:20,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 00:20:20,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:20:20,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:20:20,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:20:20,878 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:20:20,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:20:20,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:20:20,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:20:20,914 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:20:20,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:20:20,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:20:20,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:20:20,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:20:20,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:20:20,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:20:20,915 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:20:20,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:20:20,916 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:20:20,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:20:20,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:20:20,916 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:20:20,916 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:20:20,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:20:20,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:20:20,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:20:20,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:20:20,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:20:20,918 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:20:21,204 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:20:21,216 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:20:21,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:20:21,221 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:20:21,222 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:20:21,223 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alt_test.i [2020-07-18 00:20:21,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b31c2d208/1eec62365e2345e2969e9946e32e3325/FLAGf432d9743 [2020-07-18 00:20:21,807 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:20:21,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/alt_test.i [2020-07-18 00:20:21,836 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b31c2d208/1eec62365e2345e2969e9946e32e3325/FLAGf432d9743 [2020-07-18 00:20:22,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b31c2d208/1eec62365e2345e2969e9946e32e3325 [2020-07-18 00:20:22,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:20:22,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:20:22,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:20:22,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:20:22,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:20:22,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:20:22" (1/1) ... [2020-07-18 00:20:22,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12330b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:22, skipping insertion in model container [2020-07-18 00:20:22,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:20:22" (1/1) ... [2020-07-18 00:20:22,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:20:22,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:20:22,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:20:22,859 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:20:22,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:20:23,019 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:20:23,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:23 WrapperNode [2020-07-18 00:20:23,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:20:23,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:20:23,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:20:23,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:20:23,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:23" (1/1) ... [2020-07-18 00:20:23,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:23" (1/1) ... [2020-07-18 00:20:23,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:23" (1/1) ... [2020-07-18 00:20:23,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:23" (1/1) ... [2020-07-18 00:20:23,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:23" (1/1) ... [2020-07-18 00:20:23,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:23" (1/1) ... [2020-07-18 00:20:23,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:23" (1/1) ... [2020-07-18 00:20:23,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:20:23,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:20:23,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:20:23,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:20:23,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:23" (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 [2020-07-18 00:20:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:20:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:20:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-18 00:20:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:20:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure l_malloc [2020-07-18 00:20:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2020-07-18 00:20:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:20:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-07-18 00:20:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-07-18 00:20:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-07-18 00:20:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-07-18 00:20:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-07-18 00:20:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-07-18 00:20:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-07-18 00:20:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-07-18 00:20:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-07-18 00:20:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-07-18 00:20:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-07-18 00:20:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-07-18 00:20:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-07-18 00:20:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-07-18 00:20:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-07-18 00:20:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-07-18 00:20:23,164 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-07-18 00:20:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-07-18 00:20:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-07-18 00:20:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-07-18 00:20:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-07-18 00:20:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-07-18 00:20:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-07-18 00:20:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-07-18 00:20:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-07-18 00:20:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-07-18 00:20:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-07-18 00:20:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-07-18 00:20:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-07-18 00:20:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-07-18 00:20:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-07-18 00:20:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-07-18 00:20:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-07-18 00:20:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-07-18 00:20:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-07-18 00:20:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-07-18 00:20:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-07-18 00:20:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-07-18 00:20:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-18 00:20:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-07-18 00:20:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-07-18 00:20:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-07-18 00:20:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-07-18 00:20:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-07-18 00:20:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-07-18 00:20:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-07-18 00:20:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-07-18 00:20:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-07-18 00:20:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-07-18 00:20:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-07-18 00:20:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-07-18 00:20:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-07-18 00:20:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-07-18 00:20:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-07-18 00:20:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-07-18 00:20:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-07-18 00:20:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-07-18 00:20:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-07-18 00:20:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-07-18 00:20:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-07-18 00:20:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-07-18 00:20:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-07-18 00:20:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-07-18 00:20:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-07-18 00:20:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-07-18 00:20:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-07-18 00:20:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-07-18 00:20:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-07-18 00:20:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-07-18 00:20:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-07-18 00:20:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-07-18 00:20:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-07-18 00:20:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-07-18 00:20:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-07-18 00:20:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-07-18 00:20:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-07-18 00:20:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-07-18 00:20:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-07-18 00:20:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-07-18 00:20:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-07-18 00:20:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-07-18 00:20:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-07-18 00:20:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-07-18 00:20:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-07-18 00:20:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-07-18 00:20:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-07-18 00:20:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-07-18 00:20:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-07-18 00:20:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-07-18 00:20:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-07-18 00:20:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-07-18 00:20:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-07-18 00:20:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-07-18 00:20:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-07-18 00:20:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-07-18 00:20:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-07-18 00:20:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-07-18 00:20:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-07-18 00:20:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-07-18 00:20:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-07-18 00:20:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-07-18 00:20:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-18 00:20:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-18 00:20:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-18 00:20:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-18 00:20:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-18 00:20:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-18 00:20:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-18 00:20:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-18 00:20:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-18 00:20:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-18 00:20:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-18 00:20:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-18 00:20:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-18 00:20:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-18 00:20:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-18 00:20:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-18 00:20:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-18 00:20:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-18 00:20:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-18 00:20:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-18 00:20:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-18 00:20:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-18 00:20:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-18 00:20:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-18 00:20:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-18 00:20:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-18 00:20:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-18 00:20:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-18 00:20:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-18 00:20:23,194 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-18 00:20:23,194 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-18 00:20:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-18 00:20:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-18 00:20:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-18 00:20:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-18 00:20:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-18 00:20:23,196 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-18 00:20:23,196 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-18 00:20:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-18 00:20:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-18 00:20:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-18 00:20:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-18 00:20:23,208 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-18 00:20:23,208 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-18 00:20:23,209 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-18 00:20:23,209 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-18 00:20:23,209 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-18 00:20:23,210 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-18 00:20:23,210 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-18 00:20:23,210 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-18 00:20:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-18 00:20:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-18 00:20:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-18 00:20:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-18 00:20:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-18 00:20:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-18 00:20:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-18 00:20:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-18 00:20:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 00:20:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-18 00:20:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-18 00:20:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-18 00:20:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-18 00:20:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-18 00:20:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-07-18 00:20:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-18 00:20:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-18 00:20:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-18 00:20:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-18 00:20:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-18 00:20:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-18 00:20:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-18 00:20:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-18 00:20:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-18 00:20:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-18 00:20:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-18 00:20:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-18 00:20:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-18 00:20:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-18 00:20:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-18 00:20:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-18 00:20:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-18 00:20:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-18 00:20:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-18 00:20:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-18 00:20:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-18 00:20:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-18 00:20:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-18 00:20:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-18 00:20:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-18 00:20:23,218 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-18 00:20:23,218 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-18 00:20:23,218 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-18 00:20:23,218 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-18 00:20:23,218 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-18 00:20:23,218 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-18 00:20:23,218 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-18 00:20:23,219 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-18 00:20:23,219 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-18 00:20:23,219 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-07-18 00:20:23,219 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-18 00:20:23,219 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-18 00:20:23,219 INFO L130 BoogieDeclarations]: Found specification of procedure l_malloc [2020-07-18 00:20:23,220 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2020-07-18 00:20:23,220 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:20:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-18 00:20:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:20:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:20:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:20:23,900 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:20:23,900 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-18 00:20:23,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:20:23 BoogieIcfgContainer [2020-07-18 00:20:23,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:20:23,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:20:23,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:20:23,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:20:23,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:20:22" (1/3) ... [2020-07-18 00:20:23,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2a5ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:20:23, skipping insertion in model container [2020-07-18 00:20:23,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:23" (2/3) ... [2020-07-18 00:20:23,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2a5ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:20:23, skipping insertion in model container [2020-07-18 00:20:23,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:20:23" (3/3) ... [2020-07-18 00:20:23,913 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i [2020-07-18 00:20:23,924 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:20:23,933 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:20:23,948 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:20:23,970 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:20:23,971 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:20:23,971 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:20:23,971 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:20:23,971 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:20:23,971 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:20:23,971 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:20:23,971 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:20:23,987 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-18 00:20:23,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-18 00:20:23,997 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:20:23,998 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] [2020-07-18 00:20:23,999 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:20:24,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:20:24,006 INFO L82 PathProgramCache]: Analyzing trace with hash -464537204, now seen corresponding path program 1 times [2020-07-18 00:20:24,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:20:24,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1737536256] [2020-07-18 00:20:24,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:20:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:20:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:20:24,301 INFO L280 TraceCheckUtils]: 0: Hoare triple {58#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {43#true} is VALID [2020-07-18 00:20:24,302 INFO L280 TraceCheckUtils]: 1: Hoare triple {43#true} #valid := #valid[0 := 0]; {43#true} is VALID [2020-07-18 00:20:24,302 INFO L280 TraceCheckUtils]: 2: Hoare triple {43#true} assume 0 < #StackHeapBarrier; {43#true} is VALID [2020-07-18 00:20:24,304 INFO L280 TraceCheckUtils]: 3: Hoare triple {43#true} ~globalState~0 := 0; {43#true} is VALID [2020-07-18 00:20:24,305 INFO L280 TraceCheckUtils]: 4: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-18 00:20:24,305 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {43#true} {43#true} #58#return; {43#true} is VALID [2020-07-18 00:20:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:20:24,409 INFO L280 TraceCheckUtils]: 0: Hoare triple {59#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size; {43#true} is VALID [2020-07-18 00:20:24,411 INFO L280 TraceCheckUtils]: 1: Hoare triple {43#true} SUMMARY for call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size); srcloc: L1619 {60#(not (= 0 |l_malloc_#t~malloc31.base|))} is VALID [2020-07-18 00:20:24,412 INFO L280 TraceCheckUtils]: 2: Hoare triple {60#(not (= 0 |l_malloc_#t~malloc31.base|))} ~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {61#(not (= 0 l_malloc_~retVal~0.base))} is VALID [2020-07-18 00:20:24,413 INFO L280 TraceCheckUtils]: 3: Hoare triple {61#(not (= 0 l_malloc_~retVal~0.base))} assume !(~retVal~0.base != 0 || ~retVal~0.offset != 0); {44#false} is VALID [2020-07-18 00:20:24,413 INFO L280 TraceCheckUtils]: 4: Hoare triple {44#false} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {44#false} is VALID [2020-07-18 00:20:24,413 INFO L280 TraceCheckUtils]: 5: Hoare triple {44#false} assume true; {44#false} is VALID [2020-07-18 00:20:24,413 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {44#false} {43#true} #50#return; {44#false} is VALID [2020-07-18 00:20:24,415 INFO L263 TraceCheckUtils]: 0: Hoare triple {43#true} call ULTIMATE.init(); {58#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:20:24,416 INFO L280 TraceCheckUtils]: 1: Hoare triple {58#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {43#true} is VALID [2020-07-18 00:20:24,416 INFO L280 TraceCheckUtils]: 2: Hoare triple {43#true} #valid := #valid[0 := 0]; {43#true} is VALID [2020-07-18 00:20:24,416 INFO L280 TraceCheckUtils]: 3: Hoare triple {43#true} assume 0 < #StackHeapBarrier; {43#true} is VALID [2020-07-18 00:20:24,417 INFO L280 TraceCheckUtils]: 4: Hoare triple {43#true} ~globalState~0 := 0; {43#true} is VALID [2020-07-18 00:20:24,417 INFO L280 TraceCheckUtils]: 5: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-18 00:20:24,418 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {43#true} {43#true} #58#return; {43#true} is VALID [2020-07-18 00:20:24,418 INFO L263 TraceCheckUtils]: 7: Hoare triple {43#true} call #t~ret32 := main(#in~argc, #in~argv.base, #in~argv.offset); {43#true} is VALID [2020-07-18 00:20:24,418 INFO L280 TraceCheckUtils]: 8: Hoare triple {43#true} ~argc := #in~argc; {43#true} is VALID [2020-07-18 00:20:24,419 INFO L280 TraceCheckUtils]: 9: Hoare triple {43#true} ~argv.base, ~argv.offset := #in~argv.base, #in~argv.offset; {43#true} is VALID [2020-07-18 00:20:24,420 INFO L263 TraceCheckUtils]: 10: Hoare triple {43#true} call #t~ret30.base, #t~ret30.offset := l_malloc(4); {59#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:20:24,421 INFO L280 TraceCheckUtils]: 11: Hoare triple {59#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size; {43#true} is VALID [2020-07-18 00:20:24,422 INFO L280 TraceCheckUtils]: 12: Hoare triple {43#true} SUMMARY for call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size); srcloc: L1619 {60#(not (= 0 |l_malloc_#t~malloc31.base|))} is VALID [2020-07-18 00:20:24,424 INFO L280 TraceCheckUtils]: 13: Hoare triple {60#(not (= 0 |l_malloc_#t~malloc31.base|))} ~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {61#(not (= 0 l_malloc_~retVal~0.base))} is VALID [2020-07-18 00:20:24,425 INFO L280 TraceCheckUtils]: 14: Hoare triple {61#(not (= 0 l_malloc_~retVal~0.base))} assume !(~retVal~0.base != 0 || ~retVal~0.offset != 0); {44#false} is VALID [2020-07-18 00:20:24,426 INFO L280 TraceCheckUtils]: 15: Hoare triple {44#false} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {44#false} is VALID [2020-07-18 00:20:24,426 INFO L280 TraceCheckUtils]: 16: Hoare triple {44#false} assume true; {44#false} is VALID [2020-07-18 00:20:24,427 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {44#false} {43#true} #50#return; {44#false} is VALID [2020-07-18 00:20:24,427 INFO L280 TraceCheckUtils]: 18: Hoare triple {44#false} ~a~0.base, ~a~0.offset := #t~ret30.base, #t~ret30.offset; {44#false} is VALID [2020-07-18 00:20:24,427 INFO L280 TraceCheckUtils]: 19: Hoare triple {44#false} havoc #t~ret30.base, #t~ret30.offset; {44#false} is VALID [2020-07-18 00:20:24,428 INFO L263 TraceCheckUtils]: 20: Hoare triple {44#false} call l_free(~a~0.base, ~a~0.offset); {44#false} is VALID [2020-07-18 00:20:24,428 INFO L280 TraceCheckUtils]: 21: Hoare triple {44#false} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {44#false} is VALID [2020-07-18 00:20:24,428 INFO L280 TraceCheckUtils]: 22: Hoare triple {44#false} assume ~ptr.base != 0 || ~ptr.offset != 0; {44#false} is VALID [2020-07-18 00:20:24,429 INFO L280 TraceCheckUtils]: 23: Hoare triple {44#false} assume !(1 == ~globalState~0); {44#false} is VALID [2020-07-18 00:20:24,429 INFO L263 TraceCheckUtils]: 24: Hoare triple {44#false} call __blast_assert(); {44#false} is VALID [2020-07-18 00:20:24,429 INFO L280 TraceCheckUtils]: 25: Hoare triple {44#false} assume !false; {44#false} is VALID [2020-07-18 00:20:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:20:24,439 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:20:24,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1737536256] [2020-07-18 00:20:24,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:20:24,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-18 00:20:24,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802203992] [2020-07-18 00:20:24,450 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-18 00:20:24,453 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:20:24,457 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-18 00:20:24,506 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:20:24,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-18 00:20:24,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:20:24,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-18 00:20:24,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-18 00:20:24,519 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 6 states. [2020-07-18 00:20:25,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:20:25,075 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2020-07-18 00:20:25,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-18 00:20:25,076 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-18 00:20:25,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:20:25,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-18 00:20:25,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions. [2020-07-18 00:20:25,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-18 00:20:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions. [2020-07-18 00:20:25,095 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 70 transitions. [2020-07-18 00:20:25,204 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:20:25,217 INFO L225 Difference]: With dead ends: 62 [2020-07-18 00:20:25,218 INFO L226 Difference]: Without dead ends: 33 [2020-07-18 00:20:25,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-18 00:20:25,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-07-18 00:20:25,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-07-18 00:20:25,349 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:20:25,350 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand 33 states. [2020-07-18 00:20:25,350 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 33 states. [2020-07-18 00:20:25,351 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 33 states. [2020-07-18 00:20:25,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:20:25,356 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-07-18 00:20:25,356 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-07-18 00:20:25,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:20:25,357 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:20:25,357 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 33 states. [2020-07-18 00:20:25,358 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 33 states. [2020-07-18 00:20:25,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:20:25,362 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-07-18 00:20:25,363 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-07-18 00:20:25,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:20:25,363 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:20:25,364 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:20:25,364 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:20:25,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-07-18 00:20:25,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-07-18 00:20:25,369 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 26 [2020-07-18 00:20:25,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:20:25,369 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-07-18 00:20:25,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-18 00:20:25,370 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 33 states and 34 transitions. [2020-07-18 00:20:25,417 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:20:25,417 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-07-18 00:20:25,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-18 00:20:25,418 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:20:25,419 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] [2020-07-18 00:20:25,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:20:25,419 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:20:25,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:20:25,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1961589014, now seen corresponding path program 1 times [2020-07-18 00:20:25,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:20:25,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359007418] [2020-07-18 00:20:25,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:20:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:20:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:20:25,550 INFO L280 TraceCheckUtils]: 0: Hoare triple {342#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {325#true} is VALID [2020-07-18 00:20:25,551 INFO L280 TraceCheckUtils]: 1: Hoare triple {325#true} #valid := #valid[0 := 0]; {325#true} is VALID [2020-07-18 00:20:25,551 INFO L280 TraceCheckUtils]: 2: Hoare triple {325#true} assume 0 < #StackHeapBarrier; {325#true} is VALID [2020-07-18 00:20:25,551 INFO L280 TraceCheckUtils]: 3: Hoare triple {325#true} ~globalState~0 := 0; {325#true} is VALID [2020-07-18 00:20:25,551 INFO L280 TraceCheckUtils]: 4: Hoare triple {325#true} assume true; {325#true} is VALID [2020-07-18 00:20:25,552 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {325#true} {325#true} #58#return; {325#true} is VALID [2020-07-18 00:20:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:20:25,617 INFO L280 TraceCheckUtils]: 0: Hoare triple {343#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size; {325#true} is VALID [2020-07-18 00:20:25,617 INFO L280 TraceCheckUtils]: 1: Hoare triple {325#true} SUMMARY for call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size); srcloc: L1619 {325#true} is VALID [2020-07-18 00:20:25,618 INFO L280 TraceCheckUtils]: 2: Hoare triple {325#true} ~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {325#true} is VALID [2020-07-18 00:20:25,618 INFO L280 TraceCheckUtils]: 3: Hoare triple {325#true} assume ~retVal~0.base != 0 || ~retVal~0.offset != 0; {325#true} is VALID [2020-07-18 00:20:25,620 INFO L280 TraceCheckUtils]: 4: Hoare triple {325#true} ~globalState~0 := 1; {341#(= 1 ~globalState~0)} is VALID [2020-07-18 00:20:25,621 INFO L280 TraceCheckUtils]: 5: Hoare triple {341#(= 1 ~globalState~0)} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {341#(= 1 ~globalState~0)} is VALID [2020-07-18 00:20:25,625 INFO L280 TraceCheckUtils]: 6: Hoare triple {341#(= 1 ~globalState~0)} assume true; {341#(= 1 ~globalState~0)} is VALID [2020-07-18 00:20:25,627 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {341#(= 1 ~globalState~0)} {325#true} #50#return; {341#(= 1 ~globalState~0)} is VALID [2020-07-18 00:20:25,628 INFO L263 TraceCheckUtils]: 0: Hoare triple {325#true} call ULTIMATE.init(); {342#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:20:25,628 INFO L280 TraceCheckUtils]: 1: Hoare triple {342#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {325#true} is VALID [2020-07-18 00:20:25,629 INFO L280 TraceCheckUtils]: 2: Hoare triple {325#true} #valid := #valid[0 := 0]; {325#true} is VALID [2020-07-18 00:20:25,629 INFO L280 TraceCheckUtils]: 3: Hoare triple {325#true} assume 0 < #StackHeapBarrier; {325#true} is VALID [2020-07-18 00:20:25,629 INFO L280 TraceCheckUtils]: 4: Hoare triple {325#true} ~globalState~0 := 0; {325#true} is VALID [2020-07-18 00:20:25,629 INFO L280 TraceCheckUtils]: 5: Hoare triple {325#true} assume true; {325#true} is VALID [2020-07-18 00:20:25,630 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {325#true} {325#true} #58#return; {325#true} is VALID [2020-07-18 00:20:25,630 INFO L263 TraceCheckUtils]: 7: Hoare triple {325#true} call #t~ret32 := main(#in~argc, #in~argv.base, #in~argv.offset); {325#true} is VALID [2020-07-18 00:20:25,631 INFO L280 TraceCheckUtils]: 8: Hoare triple {325#true} ~argc := #in~argc; {325#true} is VALID [2020-07-18 00:20:25,631 INFO L280 TraceCheckUtils]: 9: Hoare triple {325#true} ~argv.base, ~argv.offset := #in~argv.base, #in~argv.offset; {325#true} is VALID [2020-07-18 00:20:25,635 INFO L263 TraceCheckUtils]: 10: Hoare triple {325#true} call #t~ret30.base, #t~ret30.offset := l_malloc(4); {343#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:20:25,635 INFO L280 TraceCheckUtils]: 11: Hoare triple {343#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size; {325#true} is VALID [2020-07-18 00:20:25,636 INFO L280 TraceCheckUtils]: 12: Hoare triple {325#true} SUMMARY for call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size); srcloc: L1619 {325#true} is VALID [2020-07-18 00:20:25,636 INFO L280 TraceCheckUtils]: 13: Hoare triple {325#true} ~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {325#true} is VALID [2020-07-18 00:20:25,637 INFO L280 TraceCheckUtils]: 14: Hoare triple {325#true} assume ~retVal~0.base != 0 || ~retVal~0.offset != 0; {325#true} is VALID [2020-07-18 00:20:25,638 INFO L280 TraceCheckUtils]: 15: Hoare triple {325#true} ~globalState~0 := 1; {341#(= 1 ~globalState~0)} is VALID [2020-07-18 00:20:25,639 INFO L280 TraceCheckUtils]: 16: Hoare triple {341#(= 1 ~globalState~0)} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {341#(= 1 ~globalState~0)} is VALID [2020-07-18 00:20:25,639 INFO L280 TraceCheckUtils]: 17: Hoare triple {341#(= 1 ~globalState~0)} assume true; {341#(= 1 ~globalState~0)} is VALID [2020-07-18 00:20:25,641 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {341#(= 1 ~globalState~0)} {325#true} #50#return; {341#(= 1 ~globalState~0)} is VALID [2020-07-18 00:20:25,642 INFO L280 TraceCheckUtils]: 19: Hoare triple {341#(= 1 ~globalState~0)} ~a~0.base, ~a~0.offset := #t~ret30.base, #t~ret30.offset; {341#(= 1 ~globalState~0)} is VALID [2020-07-18 00:20:25,643 INFO L280 TraceCheckUtils]: 20: Hoare triple {341#(= 1 ~globalState~0)} havoc #t~ret30.base, #t~ret30.offset; {341#(= 1 ~globalState~0)} is VALID [2020-07-18 00:20:25,644 INFO L263 TraceCheckUtils]: 21: Hoare triple {341#(= 1 ~globalState~0)} call l_free(~a~0.base, ~a~0.offset); {341#(= 1 ~globalState~0)} is VALID [2020-07-18 00:20:25,644 INFO L280 TraceCheckUtils]: 22: Hoare triple {341#(= 1 ~globalState~0)} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {341#(= 1 ~globalState~0)} is VALID [2020-07-18 00:20:25,646 INFO L280 TraceCheckUtils]: 23: Hoare triple {341#(= 1 ~globalState~0)} assume ~ptr.base != 0 || ~ptr.offset != 0; {341#(= 1 ~globalState~0)} is VALID [2020-07-18 00:20:25,646 INFO L280 TraceCheckUtils]: 24: Hoare triple {341#(= 1 ~globalState~0)} assume !(1 == ~globalState~0); {326#false} is VALID [2020-07-18 00:20:25,647 INFO L263 TraceCheckUtils]: 25: Hoare triple {326#false} call __blast_assert(); {326#false} is VALID [2020-07-18 00:20:25,647 INFO L280 TraceCheckUtils]: 26: Hoare triple {326#false} assume !false; {326#false} is VALID [2020-07-18 00:20:25,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:20:25,649 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:20:25,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359007418] [2020-07-18 00:20:25,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:20:25,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 00:20:25,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747275287] [2020-07-18 00:20:25,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-18 00:20:25,651 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:20:25,652 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 00:20:25,689 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:20:25,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 00:20:25,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:20:25,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 00:20:25,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-18 00:20:25,690 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 5 states. [2020-07-18 00:20:26,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:20:26,012 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2020-07-18 00:20:26,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-18 00:20:26,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-18 00:20:26,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:20:26,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 00:20:26,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2020-07-18 00:20:26,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 00:20:26,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2020-07-18 00:20:26,019 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 42 transitions. [2020-07-18 00:20:26,078 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:20:26,081 INFO L225 Difference]: With dead ends: 40 [2020-07-18 00:20:26,081 INFO L226 Difference]: Without dead ends: 36 [2020-07-18 00:20:26,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-18 00:20:26,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-07-18 00:20:26,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-07-18 00:20:26,162 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:20:26,163 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand 36 states. [2020-07-18 00:20:26,163 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2020-07-18 00:20:26,163 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2020-07-18 00:20:26,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:20:26,167 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-07-18 00:20:26,167 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-07-18 00:20:26,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:20:26,168 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:20:26,168 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2020-07-18 00:20:26,168 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2020-07-18 00:20:26,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:20:26,171 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-07-18 00:20:26,171 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-07-18 00:20:26,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:20:26,172 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:20:26,172 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:20:26,172 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:20:26,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-18 00:20:26,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-07-18 00:20:26,174 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 27 [2020-07-18 00:20:26,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:20:26,175 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-07-18 00:20:26,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 00:20:26,175 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 36 states and 37 transitions. [2020-07-18 00:20:26,249 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:20:26,250 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-07-18 00:20:26,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-18 00:20:26,251 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:20:26,251 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] [2020-07-18 00:20:26,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:20:26,251 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:20:26,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:20:26,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1381039993, now seen corresponding path program 1 times [2020-07-18 00:20:26,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:20:26,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395708866] [2020-07-18 00:20:26,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:20:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:20:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:20:26,331 INFO L280 TraceCheckUtils]: 0: Hoare triple {599#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {575#true} is VALID [2020-07-18 00:20:26,332 INFO L280 TraceCheckUtils]: 1: Hoare triple {575#true} #valid := #valid[0 := 0]; {575#true} is VALID [2020-07-18 00:20:26,332 INFO L280 TraceCheckUtils]: 2: Hoare triple {575#true} assume 0 < #StackHeapBarrier; {575#true} is VALID [2020-07-18 00:20:26,332 INFO L280 TraceCheckUtils]: 3: Hoare triple {575#true} ~globalState~0 := 0; {575#true} is VALID [2020-07-18 00:20:26,333 INFO L280 TraceCheckUtils]: 4: Hoare triple {575#true} assume true; {575#true} is VALID [2020-07-18 00:20:26,333 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {575#true} {575#true} #58#return; {575#true} is VALID [2020-07-18 00:20:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:20:26,449 INFO L280 TraceCheckUtils]: 0: Hoare triple {600#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size; {575#true} is VALID [2020-07-18 00:20:26,451 INFO L280 TraceCheckUtils]: 1: Hoare triple {575#true} SUMMARY for call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size); srcloc: L1619 {601#(or (<= (+ |l_malloc_#t~malloc31.base| 1) 0) (< 0 |l_malloc_#t~malloc31.base|))} is VALID [2020-07-18 00:20:26,452 INFO L280 TraceCheckUtils]: 2: Hoare triple {601#(or (<= (+ |l_malloc_#t~malloc31.base| 1) 0) (< 0 |l_malloc_#t~malloc31.base|))} ~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-18 00:20:26,453 INFO L280 TraceCheckUtils]: 3: Hoare triple {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} assume ~retVal~0.base != 0 || ~retVal~0.offset != 0; {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-18 00:20:26,454 INFO L280 TraceCheckUtils]: 4: Hoare triple {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} ~globalState~0 := 1; {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-18 00:20:26,455 INFO L280 TraceCheckUtils]: 5: Hoare triple {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} is VALID [2020-07-18 00:20:26,455 INFO L280 TraceCheckUtils]: 6: Hoare triple {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} assume true; {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} is VALID [2020-07-18 00:20:26,457 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} {575#true} #50#return; {591#(not (= 0 |main_#t~ret30.base|))} is VALID [2020-07-18 00:20:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:20:26,514 INFO L280 TraceCheckUtils]: 0: Hoare triple {604#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|))} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {605#(= |l_free_#in~ptr.base| l_free_~ptr.base)} is VALID [2020-07-18 00:20:26,515 INFO L280 TraceCheckUtils]: 1: Hoare triple {605#(= |l_free_#in~ptr.base| l_free_~ptr.base)} assume !(~ptr.base != 0 || ~ptr.offset != 0); {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-18 00:20:26,516 INFO L280 TraceCheckUtils]: 2: Hoare triple {606#(= 0 |l_free_#in~ptr.base|)} ~globalState~0 := 0; {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-18 00:20:26,517 INFO L280 TraceCheckUtils]: 3: Hoare triple {606#(= 0 |l_free_#in~ptr.base|)} SUMMARY for call ULTIMATE.dealloc(~ptr.base, ~ptr.offset); srcloc: L1631 {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-18 00:20:26,518 INFO L280 TraceCheckUtils]: 4: Hoare triple {606#(= 0 |l_free_#in~ptr.base|)} assume true; {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-18 00:20:26,519 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {606#(= 0 |l_free_#in~ptr.base|)} {592#(not (= 0 main_~a~0.base))} #52#return; {576#false} is VALID [2020-07-18 00:20:26,520 INFO L263 TraceCheckUtils]: 0: Hoare triple {575#true} call ULTIMATE.init(); {599#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:20:26,520 INFO L280 TraceCheckUtils]: 1: Hoare triple {599#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {575#true} is VALID [2020-07-18 00:20:26,521 INFO L280 TraceCheckUtils]: 2: Hoare triple {575#true} #valid := #valid[0 := 0]; {575#true} is VALID [2020-07-18 00:20:26,521 INFO L280 TraceCheckUtils]: 3: Hoare triple {575#true} assume 0 < #StackHeapBarrier; {575#true} is VALID [2020-07-18 00:20:26,521 INFO L280 TraceCheckUtils]: 4: Hoare triple {575#true} ~globalState~0 := 0; {575#true} is VALID [2020-07-18 00:20:26,522 INFO L280 TraceCheckUtils]: 5: Hoare triple {575#true} assume true; {575#true} is VALID [2020-07-18 00:20:26,522 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {575#true} {575#true} #58#return; {575#true} is VALID [2020-07-18 00:20:26,522 INFO L263 TraceCheckUtils]: 7: Hoare triple {575#true} call #t~ret32 := main(#in~argc, #in~argv.base, #in~argv.offset); {575#true} is VALID [2020-07-18 00:20:26,522 INFO L280 TraceCheckUtils]: 8: Hoare triple {575#true} ~argc := #in~argc; {575#true} is VALID [2020-07-18 00:20:26,523 INFO L280 TraceCheckUtils]: 9: Hoare triple {575#true} ~argv.base, ~argv.offset := #in~argv.base, #in~argv.offset; {575#true} is VALID [2020-07-18 00:20:26,524 INFO L263 TraceCheckUtils]: 10: Hoare triple {575#true} call #t~ret30.base, #t~ret30.offset := l_malloc(4); {600#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:20:26,524 INFO L280 TraceCheckUtils]: 11: Hoare triple {600#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size; {575#true} is VALID [2020-07-18 00:20:26,525 INFO L280 TraceCheckUtils]: 12: Hoare triple {575#true} SUMMARY for call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size); srcloc: L1619 {601#(or (<= (+ |l_malloc_#t~malloc31.base| 1) 0) (< 0 |l_malloc_#t~malloc31.base|))} is VALID [2020-07-18 00:20:26,527 INFO L280 TraceCheckUtils]: 13: Hoare triple {601#(or (<= (+ |l_malloc_#t~malloc31.base| 1) 0) (< 0 |l_malloc_#t~malloc31.base|))} ~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-18 00:20:26,527 INFO L280 TraceCheckUtils]: 14: Hoare triple {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} assume ~retVal~0.base != 0 || ~retVal~0.offset != 0; {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-18 00:20:26,528 INFO L280 TraceCheckUtils]: 15: Hoare triple {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} ~globalState~0 := 1; {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-18 00:20:26,529 INFO L280 TraceCheckUtils]: 16: Hoare triple {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} is VALID [2020-07-18 00:20:26,530 INFO L280 TraceCheckUtils]: 17: Hoare triple {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} assume true; {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} is VALID [2020-07-18 00:20:26,531 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} {575#true} #50#return; {591#(not (= 0 |main_#t~ret30.base|))} is VALID [2020-07-18 00:20:26,532 INFO L280 TraceCheckUtils]: 19: Hoare triple {591#(not (= 0 |main_#t~ret30.base|))} ~a~0.base, ~a~0.offset := #t~ret30.base, #t~ret30.offset; {592#(not (= 0 main_~a~0.base))} is VALID [2020-07-18 00:20:26,532 INFO L280 TraceCheckUtils]: 20: Hoare triple {592#(not (= 0 main_~a~0.base))} havoc #t~ret30.base, #t~ret30.offset; {592#(not (= 0 main_~a~0.base))} is VALID [2020-07-18 00:20:26,534 INFO L263 TraceCheckUtils]: 21: Hoare triple {592#(not (= 0 main_~a~0.base))} call l_free(~a~0.base, ~a~0.offset); {604#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|))} is VALID [2020-07-18 00:20:26,535 INFO L280 TraceCheckUtils]: 22: Hoare triple {604#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|))} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {605#(= |l_free_#in~ptr.base| l_free_~ptr.base)} is VALID [2020-07-18 00:20:26,536 INFO L280 TraceCheckUtils]: 23: Hoare triple {605#(= |l_free_#in~ptr.base| l_free_~ptr.base)} assume !(~ptr.base != 0 || ~ptr.offset != 0); {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-18 00:20:26,536 INFO L280 TraceCheckUtils]: 24: Hoare triple {606#(= 0 |l_free_#in~ptr.base|)} ~globalState~0 := 0; {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-18 00:20:26,537 INFO L280 TraceCheckUtils]: 25: Hoare triple {606#(= 0 |l_free_#in~ptr.base|)} SUMMARY for call ULTIMATE.dealloc(~ptr.base, ~ptr.offset); srcloc: L1631 {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-18 00:20:26,538 INFO L280 TraceCheckUtils]: 26: Hoare triple {606#(= 0 |l_free_#in~ptr.base|)} assume true; {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-18 00:20:26,539 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {606#(= 0 |l_free_#in~ptr.base|)} {592#(not (= 0 main_~a~0.base))} #52#return; {576#false} is VALID [2020-07-18 00:20:26,539 INFO L263 TraceCheckUtils]: 28: Hoare triple {576#false} call l_free(~a~0.base, ~a~0.offset); {576#false} is VALID [2020-07-18 00:20:26,539 INFO L280 TraceCheckUtils]: 29: Hoare triple {576#false} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {576#false} is VALID [2020-07-18 00:20:26,540 INFO L280 TraceCheckUtils]: 30: Hoare triple {576#false} assume ~ptr.base != 0 || ~ptr.offset != 0; {576#false} is VALID [2020-07-18 00:20:26,540 INFO L280 TraceCheckUtils]: 31: Hoare triple {576#false} assume !(1 == ~globalState~0); {576#false} is VALID [2020-07-18 00:20:26,540 INFO L263 TraceCheckUtils]: 32: Hoare triple {576#false} call __blast_assert(); {576#false} is VALID [2020-07-18 00:20:26,541 INFO L280 TraceCheckUtils]: 33: Hoare triple {576#false} assume !false; {576#false} is VALID [2020-07-18 00:20:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:20:26,644 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:20:26,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395708866] [2020-07-18 00:20:26,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:20:26,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-18 00:20:26,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700124149] [2020-07-18 00:20:26,645 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 34 [2020-07-18 00:20:26,646 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:20:26,646 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states. [2020-07-18 00:20:26,660 WARN L140 InductivityCheck]: Transition 609#(and (= |l_free_#in~ptr.base| l_free_~ptr.base) (= l_free_~ptr.offset |l_free_#in~ptr.offset|) (or (not (= 0 l_free_~ptr.offset)) (not (= 0 l_free_~ptr.base))) (not (= 1 ~globalState~0))) ( _ , assume !false; , 576#false ) not inductive [2020-07-18 00:20:26,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-18 00:20:26,661 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inductivity failed at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.checkInductivity(InductivityCheck.java:103) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.(InductivityCheck.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.constructInterpolantAutomaton(BasicCegarLoop.java:583) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:20:26,667 INFO L168 Benchmark]: Toolchain (without parser) took 4564.23 ms. Allocated memory was 137.9 MB in the beginning and 251.7 MB in the end (delta: 113.8 MB). Free memory was 101.4 MB in the beginning and 162.8 MB in the end (delta: -61.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:20:26,668 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 00:20:26,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 916.02 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 101.0 MB in the beginning and 150.4 MB in the end (delta: -49.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-07-18 00:20:26,670 INFO L168 Benchmark]: Boogie Preprocessor took 79.92 ms. Allocated memory is still 202.9 MB. Free memory was 150.4 MB in the beginning and 146.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-18 00:20:26,671 INFO L168 Benchmark]: RCFGBuilder took 803.80 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 146.2 MB in the beginning and 200.4 MB in the end (delta: -54.3 MB). Peak memory consumption was 63.7 MB. Max. memory is 7.1 GB. [2020-07-18 00:20:26,672 INFO L168 Benchmark]: TraceAbstraction took 2758.11 ms. Allocated memory was 234.9 MB in the beginning and 251.7 MB in the end (delta: 16.8 MB). Free memory was 199.0 MB in the beginning and 162.8 MB in the end (delta: 36.1 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2020-07-18 00:20:26,676 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 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 916.02 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 101.0 MB in the beginning and 150.4 MB in the end (delta: -49.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.92 ms. Allocated memory is still 202.9 MB. Free memory was 150.4 MB in the beginning and 146.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 803.80 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 146.2 MB in the beginning and 200.4 MB in the end (delta: -54.3 MB). Peak memory consumption was 63.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2758.11 ms. Allocated memory was 234.9 MB in the beginning and 251.7 MB in the end (delta: 16.8 MB). Free memory was 199.0 MB in the beginning and 162.8 MB in the end (delta: 36.1 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inductivity failed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inductivity failed: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:142) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...