java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 10:18:25,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 10:18:25,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 10:18:25,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 10:18:25,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 10:18:25,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 10:18:25,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 10:18:25,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 10:18:25,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 10:18:25,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 10:18:25,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 10:18:25,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 10:18:25,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 10:18:25,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 10:18:25,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 10:18:25,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 10:18:25,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 10:18:25,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 10:18:25,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 10:18:25,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 10:18:25,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 10:18:25,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 10:18:25,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 10:18:25,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 10:18:25,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 10:18:25,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 10:18:25,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 10:18:25,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 10:18:25,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 10:18:25,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 10:18:25,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 10:18:25,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 10:18:25,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 10:18:25,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 10:18:25,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 10:18:25,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 10:18:25,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 10:18:25,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 10:18:25,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 10:18:25,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 10:18:25,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 10:18:25,143 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-02 10:18:25,171 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 10:18:25,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 10:18:25,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 10:18:25,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 10:18:25,174 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 10:18:25,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 10:18:25,175 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 10:18:25,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 10:18:25,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 10:18:25,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 10:18:25,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 10:18:25,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 10:18:25,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 10:18:25,179 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 10:18:25,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 10:18:25,179 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 10:18:25,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 10:18:25,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 10:18:25,180 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 10:18:25,180 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 10:18:25,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 10:18:25,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 10:18:25,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 10:18:25,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 10:18:25,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 10:18:25,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 10:18:25,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 10:18:25,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 10:18:25,183 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 10:18:25,255 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 10:18:25,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 10:18:25,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 10:18:25,287 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 10:18:25,288 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 10:18:25,289 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2019-10-02 10:18:25,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1ed3354/07e8a200870f4768aebab2616c65cdbc/FLAGecfeb0ae4 [2019-10-02 10:18:26,020 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 10:18:26,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2019-10-02 10:18:26,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1ed3354/07e8a200870f4768aebab2616c65cdbc/FLAGecfeb0ae4 [2019-10-02 10:18:26,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1ed3354/07e8a200870f4768aebab2616c65cdbc [2019-10-02 10:18:26,277 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 10:18:26,279 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 10:18:26,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 10:18:26,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 10:18:26,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 10:18:26,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:18:26" (1/1) ... [2019-10-02 10:18:26,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76bbe244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:26, skipping insertion in model container [2019-10-02 10:18:26,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:18:26" (1/1) ... [2019-10-02 10:18:26,297 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 10:18:26,363 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 10:18:26,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 10:18:26,882 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 10:18:26,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 10:18:27,028 INFO L192 MainTranslator]: Completed translation [2019-10-02 10:18:27,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:27 WrapperNode [2019-10-02 10:18:27,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 10:18:27,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 10:18:27,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 10:18:27,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 10:18:27,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:27" (1/1) ... [2019-10-02 10:18:27,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:27" (1/1) ... [2019-10-02 10:18:27,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:27" (1/1) ... [2019-10-02 10:18:27,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:27" (1/1) ... [2019-10-02 10:18:27,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:27" (1/1) ... [2019-10-02 10:18:27,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:27" (1/1) ... [2019-10-02 10:18:27,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:27" (1/1) ... [2019-10-02 10:18:27,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 10:18:27,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 10:18:27,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 10:18:27,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 10:18:27,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 10:18:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 10:18:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 10:18:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-10-02 10:18:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2019-10-02 10:18:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2019-10-02 10:18:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-02 10:18:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-02 10:18:27,184 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 10:18:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 10:18:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-10-02 10:18:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2019-10-02 10:18:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2019-10-02 10:18:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2019-10-02 10:18:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2019-10-02 10:18:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2019-10-02 10:18:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2019-10-02 10:18:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2019-10-02 10:18:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2019-10-02 10:18:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2019-10-02 10:18:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2019-10-02 10:18:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2019-10-02 10:18:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2019-10-02 10:18:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2019-10-02 10:18:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2019-10-02 10:18:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2019-10-02 10:18:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2019-10-02 10:18:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2019-10-02 10:18:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2019-10-02 10:18:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2019-10-02 10:18:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2019-10-02 10:18:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2019-10-02 10:18:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2019-10-02 10:18:27,189 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2019-10-02 10:18:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2019-10-02 10:18:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2019-10-02 10:18:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2019-10-02 10:18:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2019-10-02 10:18:27,190 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2019-10-02 10:18:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-10-02 10:18:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2019-10-02 10:18:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2019-10-02 10:18:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2019-10-02 10:18:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2019-10-02 10:18:27,191 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2019-10-02 10:18:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2019-10-02 10:18:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2019-10-02 10:18:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2019-10-02 10:18:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2019-10-02 10:18:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-02 10:18:27,192 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-02 10:18:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2019-10-02 10:18:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2019-10-02 10:18:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2019-10-02 10:18:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-02 10:18:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2019-10-02 10:18:27,193 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2019-10-02 10:18:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2019-10-02 10:18:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2019-10-02 10:18:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2019-10-02 10:18:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-10-02 10:18:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2019-10-02 10:18:27,194 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2019-10-02 10:18:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2019-10-02 10:18:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2019-10-02 10:18:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2019-10-02 10:18:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2019-10-02 10:18:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2019-10-02 10:18:27,195 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2019-10-02 10:18:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2019-10-02 10:18:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2019-10-02 10:18:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2019-10-02 10:18:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2019-10-02 10:18:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2019-10-02 10:18:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2019-10-02 10:18:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2019-10-02 10:18:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2019-10-02 10:18:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2019-10-02 10:18:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2019-10-02 10:18:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2019-10-02 10:18:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2019-10-02 10:18:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2019-10-02 10:18:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2019-10-02 10:18:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2019-10-02 10:18:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-02 10:18:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2019-10-02 10:18:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2019-10-02 10:18:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2019-10-02 10:18:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2019-10-02 10:18:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2019-10-02 10:18:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2019-10-02 10:18:27,199 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2019-10-02 10:18:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2019-10-02 10:18:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2019-10-02 10:18:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2019-10-02 10:18:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2019-10-02 10:18:27,200 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2019-10-02 10:18:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2019-10-02 10:18:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2019-10-02 10:18:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2019-10-02 10:18:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2019-10-02 10:18:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2019-10-02 10:18:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2019-10-02 10:18:27,201 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2019-10-02 10:18:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2019-10-02 10:18:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2019-10-02 10:18:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2019-10-02 10:18:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2019-10-02 10:18:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2019-10-02 10:18:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2019-10-02 10:18:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2019-10-02 10:18:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2019-10-02 10:18:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 10:18:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-02 10:18:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-02 10:18:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 10:18:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-02 10:18:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2019-10-02 10:18:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-02 10:18:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2019-10-02 10:18:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2019-10-02 10:18:27,205 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2019-10-02 10:18:27,205 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2019-10-02 10:18:27,205 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2019-10-02 10:18:27,205 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2019-10-02 10:18:27,205 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2019-10-02 10:18:27,205 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2019-10-02 10:18:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2019-10-02 10:18:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2019-10-02 10:18:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2019-10-02 10:18:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 10:18:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2019-10-02 10:18:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2019-10-02 10:18:27,207 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-02 10:18:27,207 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-02 10:18:27,207 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 10:18:27,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 10:18:27,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 10:18:27,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-02 10:18:27,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 10:18:27,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 10:18:27,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 10:18:27,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 10:18:27,875 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 10:18:27,875 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-02 10:18:27,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:18:27 BoogieIcfgContainer [2019-10-02 10:18:27,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 10:18:27,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 10:18:27,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 10:18:27,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 10:18:27,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 10:18:26" (1/3) ... [2019-10-02 10:18:27,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7c7189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:18:27, skipping insertion in model container [2019-10-02 10:18:27,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:27" (2/3) ... [2019-10-02 10:18:27,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7c7189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:18:27, skipping insertion in model container [2019-10-02 10:18:27,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:18:27" (3/3) ... [2019-10-02 10:18:27,887 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2019-10-02 10:18:27,900 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 10:18:27,910 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 10:18:27,931 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 10:18:27,969 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 10:18:27,970 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 10:18:27,970 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 10:18:27,970 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 10:18:27,970 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 10:18:27,970 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 10:18:27,971 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 10:18:27,971 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 10:18:27,971 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 10:18:27,999 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2019-10-02 10:18:28,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-02 10:18:28,008 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:18:28,010 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:18:28,016 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:18:28,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:18:28,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1135050545, now seen corresponding path program 1 times [2019-10-02 10:18:28,029 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:18:28,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:18:28,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:28,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:28,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:28,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 10:18:28,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:18:28,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 10:18:28,355 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 10:18:28,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 10:18:28,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 10:18:28,382 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 6 states. [2019-10-02 10:18:28,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:18:28,564 INFO L93 Difference]: Finished difference Result 84 states and 107 transitions. [2019-10-02 10:18:28,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-02 10:18:28,567 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-10-02 10:18:28,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:18:28,590 INFO L225 Difference]: With dead ends: 84 [2019-10-02 10:18:28,590 INFO L226 Difference]: Without dead ends: 39 [2019-10-02 10:18:28,605 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-02 10:18:28,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-02 10:18:28,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-10-02 10:18:28,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-02 10:18:28,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2019-10-02 10:18:28,683 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 13 [2019-10-02 10:18:28,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:18:28,684 INFO L475 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2019-10-02 10:18:28,684 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 10:18:28,684 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2019-10-02 10:18:28,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-02 10:18:28,688 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:18:28,689 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:18:28,689 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:18:28,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:18:28,693 INFO L82 PathProgramCache]: Analyzing trace with hash -925661111, now seen corresponding path program 1 times [2019-10-02 10:18:28,694 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:18:28,694 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:18:28,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:28,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:28,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:29,004 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-02 10:18:29,005 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:18:29,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 10:18:29,007 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 10:18:29,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 10:18:29,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 10:18:29,008 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 7 states. [2019-10-02 10:18:29,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:18:29,054 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2019-10-02 10:18:29,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 10:18:29,055 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-10-02 10:18:29,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:18:29,060 INFO L225 Difference]: With dead ends: 63 [2019-10-02 10:18:29,060 INFO L226 Difference]: Without dead ends: 44 [2019-10-02 10:18:29,061 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 10:18:29,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-10-02 10:18:29,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-10-02 10:18:29,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-10-02 10:18:29,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2019-10-02 10:18:29,075 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 38 [2019-10-02 10:18:29,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:18:29,075 INFO L475 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2019-10-02 10:18:29,076 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 10:18:29,076 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2019-10-02 10:18:29,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-02 10:18:29,077 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:18:29,078 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:18:29,078 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:18:29,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:18:29,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1219064118, now seen corresponding path program 1 times [2019-10-02 10:18:29,079 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:18:29,079 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:18:29,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:29,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:29,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:29,291 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-02 10:18:29,292 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:18:29,292 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:18:29,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:29,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 26 conjunts are in the unsatisfiable core [2019-10-02 10:18:29,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 10:18:29,967 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-10-02 10:18:29,974 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 10:18:29,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [7] total 18 [2019-10-02 10:18:29,976 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-02 10:18:29,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-02 10:18:29,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2019-10-02 10:18:29,979 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 18 states. [2019-10-02 10:18:31,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:18:31,220 INFO L93 Difference]: Finished difference Result 94 states and 110 transitions. [2019-10-02 10:18:31,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-02 10:18:31,221 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2019-10-02 10:18:31,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:18:31,224 INFO L225 Difference]: With dead ends: 94 [2019-10-02 10:18:31,224 INFO L226 Difference]: Without dead ends: 60 [2019-10-02 10:18:31,226 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=203, Invalid=987, Unknown=0, NotChecked=0, Total=1190 [2019-10-02 10:18:31,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-10-02 10:18:31,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 50. [2019-10-02 10:18:31,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-10-02 10:18:31,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2019-10-02 10:18:31,240 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 38 [2019-10-02 10:18:31,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:18:31,240 INFO L475 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2019-10-02 10:18:31,240 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-02 10:18:31,240 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2019-10-02 10:18:31,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-02 10:18:31,242 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:18:31,243 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:18:31,243 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:18:31,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:18:31,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1335597358, now seen corresponding path program 1 times [2019-10-02 10:18:31,244 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:18:31,244 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:18:31,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:31,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:31,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:31,637 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 10:18:31,638 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:18:31,639 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:18:31,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:31,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-02 10:18:31,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 10:18:31,971 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 10:18:31,977 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 10:18:31,978 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 24 [2019-10-02 10:18:31,978 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-02 10:18:31,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-02 10:18:31,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2019-10-02 10:18:31,980 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand 24 states. [2019-10-02 10:18:32,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:18:32,849 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2019-10-02 10:18:32,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 10:18:32,851 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 45 [2019-10-02 10:18:32,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:18:32,853 INFO L225 Difference]: With dead ends: 62 [2019-10-02 10:18:32,854 INFO L226 Difference]: Without dead ends: 55 [2019-10-02 10:18:32,855 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=1118, Unknown=0, NotChecked=0, Total=1260 [2019-10-02 10:18:32,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-10-02 10:18:32,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2019-10-02 10:18:32,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-10-02 10:18:32,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2019-10-02 10:18:32,869 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 45 [2019-10-02 10:18:32,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:18:32,870 INFO L475 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2019-10-02 10:18:32,870 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-02 10:18:32,870 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2019-10-02 10:18:32,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-02 10:18:32,872 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:18:32,872 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:18:32,872 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:18:32,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:18:32,873 INFO L82 PathProgramCache]: Analyzing trace with hash 526250732, now seen corresponding path program 1 times [2019-10-02 10:18:32,873 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:18:32,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:18:32,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:32,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:32,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:33,187 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 10:18:33,187 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:18:33,188 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:18:33,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:33,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-02 10:18:33,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 10:18:33,682 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (4)] Exception during sending of exit command (exit): Broken pipe [2019-10-02 10:18:33,688 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 10:18:33,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2019-10-02 10:18:33,689 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-02 10:18:33,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-02 10:18:33,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2019-10-02 10:18:33,691 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 26 states. [2019-10-02 10:18:34,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:18:34,873 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2019-10-02 10:18:34,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-02 10:18:34,874 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 45 [2019-10-02 10:18:34,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:18:34,877 INFO L225 Difference]: With dead ends: 70 [2019-10-02 10:18:34,877 INFO L226 Difference]: Without dead ends: 67 [2019-10-02 10:18:34,879 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=1311, Unknown=0, NotChecked=0, Total=1560 [2019-10-02 10:18:34,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-10-02 10:18:34,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 54. [2019-10-02 10:18:34,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-10-02 10:18:34,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2019-10-02 10:18:34,891 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 45 [2019-10-02 10:18:34,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:18:34,891 INFO L475 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2019-10-02 10:18:34,891 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-02 10:18:34,892 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2019-10-02 10:18:34,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-02 10:18:34,893 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:18:34,893 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:18:34,894 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:18:34,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:18:34,894 INFO L82 PathProgramCache]: Analyzing trace with hash -2119488644, now seen corresponding path program 1 times [2019-10-02 10:18:34,895 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:18:34,895 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:18:34,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:34,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:34,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:35,185 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-02 10:18:35,186 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:18:35,186 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:18:35,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:35,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-02 10:18:35,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 10:18:35,827 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-02 10:18:35,832 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 10:18:35,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20] total 34 [2019-10-02 10:18:35,833 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-10-02 10:18:35,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-10-02 10:18:35,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1032, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 10:18:35,835 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 34 states. [2019-10-02 10:18:37,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:18:37,681 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2019-10-02 10:18:37,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-02 10:18:37,682 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 57 [2019-10-02 10:18:37,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:18:37,684 INFO L225 Difference]: With dead ends: 74 [2019-10-02 10:18:37,685 INFO L226 Difference]: Without dead ends: 63 [2019-10-02 10:18:37,687 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=377, Invalid=3045, Unknown=0, NotChecked=0, Total=3422 [2019-10-02 10:18:37,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-10-02 10:18:37,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 54. [2019-10-02 10:18:37,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-10-02 10:18:37,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2019-10-02 10:18:37,706 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 57 [2019-10-02 10:18:37,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:18:37,711 INFO L475 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2019-10-02 10:18:37,711 INFO L476 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-10-02 10:18:37,711 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2019-10-02 10:18:37,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-02 10:18:37,713 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:18:37,714 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:18:37,714 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:18:37,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:18:37,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1366132026, now seen corresponding path program 1 times [2019-10-02 10:18:37,715 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:18:37,715 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:18:37,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:37,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:37,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:38,061 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-02 10:18:38,061 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:18:38,062 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:18:38,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:38,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-02 10:18:38,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 10:18:38,356 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-02 10:18:38,361 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 10:18:38,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 26 [2019-10-02 10:18:38,362 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-02 10:18:38,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-02 10:18:38,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2019-10-02 10:18:38,363 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 26 states. [2019-10-02 10:18:39,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:18:39,379 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2019-10-02 10:18:39,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-02 10:18:39,379 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 57 [2019-10-02 10:18:39,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:18:39,381 INFO L225 Difference]: With dead ends: 61 [2019-10-02 10:18:39,381 INFO L226 Difference]: Without dead ends: 47 [2019-10-02 10:18:39,382 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=206, Invalid=1516, Unknown=0, NotChecked=0, Total=1722 [2019-10-02 10:18:39,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-02 10:18:39,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-10-02 10:18:39,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-02 10:18:39,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2019-10-02 10:18:39,391 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 57 [2019-10-02 10:18:39,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:18:39,392 INFO L475 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2019-10-02 10:18:39,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-02 10:18:39,392 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2019-10-02 10:18:39,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-02 10:18:39,393 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:18:39,393 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:18:39,393 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:18:39,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:18:39,394 INFO L82 PathProgramCache]: Analyzing trace with hash 779326012, now seen corresponding path program 1 times [2019-10-02 10:18:39,394 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:18:39,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:18:39,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:39,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:39,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:39,517 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-02 10:18:39,517 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:18:39,518 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:18:39,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:39,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 37 conjunts are in the unsatisfiable core [2019-10-02 10:18:39,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 10:18:39,748 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-02 10:18:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-02 10:18:39,783 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 10:18:39,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2019-10-02 10:18:39,783 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-02 10:18:39,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-02 10:18:39,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-02 10:18:39,784 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 9 states. [2019-10-02 10:18:39,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:18:39,993 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2019-10-02 10:18:39,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 10:18:39,993 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-10-02 10:18:39,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:18:39,994 INFO L225 Difference]: With dead ends: 47 [2019-10-02 10:18:39,994 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 10:18:39,995 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2019-10-02 10:18:39,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 10:18:39,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 10:18:39,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 10:18:39,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 10:18:39,996 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2019-10-02 10:18:39,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:18:39,997 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 10:18:39,997 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-02 10:18:39,997 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 10:18:39,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 10:18:40,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-02 10:18:40,259 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 28 [2019-10-02 10:18:40,532 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 28 [2019-10-02 10:18:40,729 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 24 [2019-10-02 10:18:41,213 INFO L443 ceAbstractionStarter]: For program point my_mallocFINAL(lines 878 880) no Hoare annotation was computed. [2019-10-02 10:18:41,214 INFO L439 ceAbstractionStarter]: At program point L879(line 879) the Hoare annotation is: (let ((.cse0 (= my_malloc_~size 8)) (.cse1 (not (= |my_malloc_#in~size| 8)))) (and (or (and .cse0 (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (or (not (= ~elem~0.offset 0)) (or (not (<= 0 |old(~guard_malloc_counter~0.offset)|)) .cse1))) (or (and (<= |old(~guard_malloc_counter~0.offset)| ~guard_malloc_counter~0.offset) .cse0) (not (<= 1 |old(~guard_malloc_counter~0.offset)|)) (not (<= ~elem~0.offset 0)) .cse1))) [2019-10-02 10:18:41,214 INFO L443 ceAbstractionStarter]: For program point L879-1(line 879) no Hoare annotation was computed. [2019-10-02 10:18:41,215 INFO L439 ceAbstractionStarter]: At program point my_mallocENTRY(lines 878 880) the Hoare annotation is: (let ((.cse0 (not (= |my_malloc_#in~size| 8)))) (and (or (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (or (not (= ~elem~0.offset 0)) (or (not (<= 0 |old(~guard_malloc_counter~0.offset)|)) .cse0))) (or (not (<= 1 |old(~guard_malloc_counter~0.offset)|)) (not (<= ~elem~0.offset 0)) (<= |old(~guard_malloc_counter~0.offset)| ~guard_malloc_counter~0.offset) .cse0))) [2019-10-02 10:18:41,215 INFO L443 ceAbstractionStarter]: For program point my_mallocEXIT(lines 878 880) no Hoare annotation was computed. [2019-10-02 10:18:41,215 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-02 10:18:41,215 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~elem~0.offset)| ~elem~0.offset) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |old(~elem~0.base)| ~elem~0.base)) [2019-10-02 10:18:41,215 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-02 10:18:41,216 INFO L443 ceAbstractionStarter]: For program point L896(lines 896 897) no Hoare annotation was computed. [2019-10-02 10:18:41,216 INFO L443 ceAbstractionStarter]: For program point L896-2(lines 895 898) no Hoare annotation was computed. [2019-10-02 10:18:41,216 INFO L443 ceAbstractionStarter]: For program point list_delEXIT(lines 895 898) no Hoare annotation was computed. [2019-10-02 10:18:41,216 INFO L439 ceAbstractionStarter]: At program point list_delENTRY(lines 895 898) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~guard_malloc_counter~0.offset)))) (and (or (= |old(~elem~0.base)| ~elem~0.base) .cse0) (or (= |old(~elem~0.offset)| ~elem~0.offset) .cse0))) [2019-10-02 10:18:41,216 INFO L439 ceAbstractionStarter]: At program point list_addENTRY(lines 889 893) the Hoare annotation is: (let ((.cse1 (= |old(~elem~0.offset)| ~elem~0.offset)) (.cse0 (not (<= 1 ~guard_malloc_counter~0.offset))) (.cse2 (= |old(~elem~0.base)| ~elem~0.base))) (and (or .cse0 .cse1 (not (<= (+ |old(~elem~0.offset)| 1) |list_add_#in~new.offset|))) (or .cse0 (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|)) (and .cse1 .cse2)) (or (not (= |old(~elem~0.offset)| 0)) .cse0 (not (<= 2 |list_add_#in~new.offset|)) .cse2))) [2019-10-02 10:18:41,216 INFO L443 ceAbstractionStarter]: For program point L891(lines 891 892) no Hoare annotation was computed. [2019-10-02 10:18:41,217 INFO L443 ceAbstractionStarter]: For program point L890(line 890) no Hoare annotation was computed. [2019-10-02 10:18:41,217 INFO L443 ceAbstractionStarter]: For program point L891-2(lines 889 893) no Hoare annotation was computed. [2019-10-02 10:18:41,217 INFO L439 ceAbstractionStarter]: At program point L890-2(line 890) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~guard_malloc_counter~0.offset)))) (and (or .cse0 (not (<= (+ |old(~elem~0.offset)| 1) |list_add_#in~new.offset|))) (or .cse0 (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|))))) [2019-10-02 10:18:41,217 INFO L443 ceAbstractionStarter]: For program point L890-3(line 890) no Hoare annotation was computed. [2019-10-02 10:18:41,217 INFO L443 ceAbstractionStarter]: For program point list_addEXIT(lines 889 893) no Hoare annotation was computed. [2019-10-02 10:18:41,217 INFO L443 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2019-10-02 10:18:41,218 INFO L443 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-02 10:18:41,218 INFO L443 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2019-10-02 10:18:41,218 INFO L446 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2019-10-02 10:18:41,218 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-02 10:18:41,219 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~guard_malloc_counter~0.offset) (= ~elem~0.offset 0)) [2019-10-02 10:18:41,219 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-02 10:18:41,219 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-02 10:18:41,219 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 902 917) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| 0)) (and (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base)) (not (= 0 |old(~guard_malloc_counter~0.offset)|))) [2019-10-02 10:18:41,219 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 902 917) no Hoare annotation was computed. [2019-10-02 10:18:41,220 INFO L439 ceAbstractionStarter]: At program point L909(line 909) the Hoare annotation is: (let ((.cse0 (<= 1 ~guard_malloc_counter~0.offset)) (.cse1 (<= 2 main_~dev2~0.offset))) (or (not (= |old(~elem~0.offset)| 0)) (and (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset) (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset) .cse0 .cse1 (<= (+ ~elem~0.offset 1) main_~dev2~0.offset)) (and .cse0 .cse1 (<= ~elem~0.offset 0)) (not (= 0 |old(~guard_malloc_counter~0.offset)|)))) [2019-10-02 10:18:41,220 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 902 917) no Hoare annotation was computed. [2019-10-02 10:18:41,220 INFO L439 ceAbstractionStarter]: At program point L908(line 908) the Hoare annotation is: (let ((.cse0 (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset)) (.cse1 (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset)) (.cse2 (<= 1 ~guard_malloc_counter~0.offset)) (.cse3 (<= 2 main_~dev2~0.offset))) (or (not (= |old(~elem~0.offset)| 0)) (and .cse0 .cse1 .cse2 .cse3 (<= (+ ~elem~0.offset 1) main_~dev2~0.offset)) (and (= main_~dev2~0.base ~elem~0.base) .cse0 .cse1 .cse2 (= main_~dev2~0.offset ~elem~0.offset) .cse3) (and .cse2 .cse3 (<= ~elem~0.offset 0)) (not (= 0 |old(~guard_malloc_counter~0.offset)|)))) [2019-10-02 10:18:41,221 INFO L439 ceAbstractionStarter]: At program point L907(line 907) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| 0)) (and (<= 1 main_~dev1~0.offset) (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset) (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base)) (not (= 0 |old(~guard_malloc_counter~0.offset)|))) [2019-10-02 10:18:41,221 INFO L443 ceAbstractionStarter]: For program point L906(lines 906 915) no Hoare annotation was computed. [2019-10-02 10:18:41,221 INFO L439 ceAbstractionStarter]: At program point L907-1(line 907) the Hoare annotation is: (let ((.cse1 (+ main_~dev1~0.offset 1)) (.cse0 (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset))) (or (not (= |old(~elem~0.offset)| 0)) (and (= main_~dev2~0.base ~elem~0.base) .cse0 (<= .cse1 ~elem~0.offset) (<= 1 ~guard_malloc_counter~0.offset) (<= 2 main_~dev2~0.offset) (= main_~dev2~0.offset ~elem~0.offset)) (not (= 0 |old(~guard_malloc_counter~0.offset)|)) (and (<= 1 main_~dev1~0.offset) (<= .cse1 main_~dev2~0.offset) .cse0 (= ~elem~0.offset 0)))) [2019-10-02 10:18:41,221 INFO L439 ceAbstractionStarter]: At program point L905(line 905) the Hoare annotation is: (or (and (= 0 main_~dev1~0.base) (<= 1 ~guard_malloc_counter~0.offset) (= main_~dev1~0.offset 0) (<= ~elem~0.offset 0)) (not (= |old(~elem~0.offset)| 0)) (and (<= 1 main_~dev1~0.offset) (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base)) (not (= 0 |old(~guard_malloc_counter~0.offset)|))) [2019-10-02 10:18:41,221 INFO L443 ceAbstractionStarter]: For program point L906-1(lines 906 915) no Hoare annotation was computed. [2019-10-02 10:18:41,222 INFO L439 ceAbstractionStarter]: At program point L904(line 904) the Hoare annotation is: (or (not (= |old(~elem~0.offset)| 0)) (and (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base)) (not (= 0 |old(~guard_malloc_counter~0.offset)|))) [2019-10-02 10:18:41,222 INFO L443 ceAbstractionStarter]: For program point L905-1(line 905) no Hoare annotation was computed. [2019-10-02 10:18:41,222 INFO L443 ceAbstractionStarter]: For program point L904-1(line 904) no Hoare annotation was computed. [2019-10-02 10:18:41,222 INFO L439 ceAbstractionStarter]: At program point __getMemoryENTRY(lines 869 876) the Hoare annotation is: (or (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (or (not (= ~elem~0.offset 0)) (or (not (<= 0 |old(~guard_malloc_counter~0.offset)|)) (not (= |__getMemory_#in~size| 8))))) [2019-10-02 10:18:41,222 INFO L443 ceAbstractionStarter]: For program point __getMemoryEXIT(lines 869 876) no Hoare annotation was computed. [2019-10-02 10:18:41,223 INFO L443 ceAbstractionStarter]: For program point __getMemoryFINAL(lines 869 876) no Hoare annotation was computed. [2019-10-02 10:18:41,223 INFO L443 ceAbstractionStarter]: For program point L873(lines 873 874) no Hoare annotation was computed. [2019-10-02 10:18:41,223 INFO L443 ceAbstractionStarter]: For program point L871(line 871) no Hoare annotation was computed. [2019-10-02 10:18:41,223 INFO L439 ceAbstractionStarter]: At program point L871-2(line 871) the Hoare annotation is: (or (not (= ~elem~0.offset 0)) (or (not (<= 0 |old(~guard_malloc_counter~0.offset)|)) (not (= |__getMemory_#in~size| 8)))) [2019-10-02 10:18:41,223 INFO L443 ceAbstractionStarter]: For program point L871-3(line 871) no Hoare annotation was computed. [2019-10-02 10:18:41,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 10:18:41 BoogieIcfgContainer [2019-10-02 10:18:41,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 10:18:41,230 INFO L168 Benchmark]: Toolchain (without parser) took 14951.19 ms. Allocated memory was 140.0 MB in the beginning and 396.4 MB in the end (delta: 256.4 MB). Free memory was 86.2 MB in the beginning and 101.9 MB in the end (delta: -15.7 MB). Peak memory consumption was 240.7 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:41,231 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 140.0 MB. Free memory is still 105.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-02 10:18:41,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.31 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 85.8 MB in the beginning and 162.9 MB in the end (delta: -77.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:41,233 INFO L168 Benchmark]: Boogie Preprocessor took 72.27 ms. Allocated memory is still 201.9 MB. Free memory was 162.9 MB in the beginning and 160.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:41,235 INFO L168 Benchmark]: RCFGBuilder took 773.95 ms. Allocated memory is still 201.9 MB. Free memory was 160.2 MB in the beginning and 114.8 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:41,236 INFO L168 Benchmark]: TraceAbstraction took 13349.50 ms. Allocated memory was 201.9 MB in the beginning and 396.4 MB in the end (delta: 194.5 MB). Free memory was 113.9 MB in the beginning and 101.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 206.5 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:41,240 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 140.0 MB. Free memory is still 105.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.31 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 85.8 MB in the beginning and 162.9 MB in the end (delta: -77.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.27 ms. Allocated memory is still 201.9 MB. Free memory was 162.9 MB in the beginning and 160.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 773.95 ms. Allocated memory is still 201.9 MB. Free memory was 160.2 MB in the beginning and 114.8 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13349.50 ms. Allocated memory was 201.9 MB in the beginning and 396.4 MB in the end (delta: 194.5 MB). Free memory was 113.9 MB in the beginning and 101.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 206.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 47 locations, 1 error locations. SAFE Result, 13.2s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 6.6s AutomataDifference, 0.0s DeadEndRemovalTime, 1.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 284 SDtfs, 473 SDslu, 1280 SDs, 0 SdLazy, 4201 SolverSat, 488 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 506 GetRequests, 280 SyntacticMatches, 3 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1268 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 33 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 71 PreInvPairs, 82 NumberOfFragments, 462 HoareAnnotationTreeSize, 71 FomulaSimplifications, 641 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 18 FomulaSimplificationsInter, 1673 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 649 NumberOfCodeBlocks, 649 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 635 ConstructedInterpolants, 0 QuantifiedInterpolants, 109006 SizeOfPredicates, 41 NumberOfNonLiveVariables, 1705 ConjunctsInSsa, 157 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 136/211 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...