/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/alt_test.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 12:23:08,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 12:23:08,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 12:23:08,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 12:23:08,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 12:23:08,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 12:23:08,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 12:23:08,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 12:23:08,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 12:23:08,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 12:23:08,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 12:23:08,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 12:23:08,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 12:23:08,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 12:23:08,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 12:23:08,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 12:23:08,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 12:23:08,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 12:23:08,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 12:23:08,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 12:23:08,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 12:23:08,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 12:23:08,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 12:23:08,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 12:23:08,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 12:23:08,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 12:23:08,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 12:23:08,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 12:23:08,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 12:23:08,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 12:23:08,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 12:23:08,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 12:23:08,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 12:23:08,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 12:23:08,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 12:23:08,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 12:23:08,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 12:23:08,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 12:23:08,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 12:23:08,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 12:23:08,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 12:23:08,072 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 [2020-07-08 12:23:08,089 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 12:23:08,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 12:23:08,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-08 12:23:08,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-08 12:23:08,091 INFO L138 SettingsManager]: * Use SBE=true [2020-07-08 12:23:08,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 12:23:08,091 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 12:23:08,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 12:23:08,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 12:23:08,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 12:23:08,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 12:23:08,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 12:23:08,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 12:23:08,093 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 12:23:08,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 12:23:08,093 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 12:23:08,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 12:23:08,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 12:23:08,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-08 12:23:08,094 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 12:23:08,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 12:23:08,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 12:23:08,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 12:23:08,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-08 12:23:08,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-08 12:23:08,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-08 12:23:08,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-08 12:23:08,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 12:23:08,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-08 12:23:08,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-08 12:23:08,391 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 12:23:08,403 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 12:23:08,407 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 12:23:08,408 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 12:23:08,409 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 12:23:08,409 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alt_test.i [2020-07-08 12:23:08,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0da67875/dedaa9d5066741a980daa8d75c8310c7/FLAG438150a96 [2020-07-08 12:23:09,093 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 12:23:09,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/alt_test.i [2020-07-08 12:23:09,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0da67875/dedaa9d5066741a980daa8d75c8310c7/FLAG438150a96 [2020-07-08 12:23:09,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0da67875/dedaa9d5066741a980daa8d75c8310c7 [2020-07-08 12:23:09,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 12:23:09,352 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 12:23:09,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 12:23:09,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 12:23:09,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 12:23:09,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:23:09" (1/1) ... [2020-07-08 12:23:09,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a594e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:09, skipping insertion in model container [2020-07-08 12:23:09,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:23:09" (1/1) ... [2020-07-08 12:23:09,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 12:23:09,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 12:23:10,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:23:10,048 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 12:23:10,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:23:10,226 INFO L208 MainTranslator]: Completed translation [2020-07-08 12:23:10,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:10 WrapperNode [2020-07-08 12:23:10,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 12:23:10,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 12:23:10,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 12:23:10,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 12:23:10,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:10" (1/1) ... [2020-07-08 12:23:10,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:10" (1/1) ... [2020-07-08 12:23:10,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:10" (1/1) ... [2020-07-08 12:23:10,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:10" (1/1) ... [2020-07-08 12:23:10,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:10" (1/1) ... [2020-07-08 12:23:10,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:10" (1/1) ... [2020-07-08 12:23:10,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:10" (1/1) ... [2020-07-08 12:23:10,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 12:23:10,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 12:23:10,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 12:23:10,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 12:23:10,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:10" (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 [2020-07-08 12:23:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 12:23:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 12:23:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-08 12:23:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 12:23:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure l_malloc [2020-07-08 12:23:10,373 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2020-07-08 12:23:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 12:23:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-07-08 12:23:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-07-08 12:23:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-07-08 12:23:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-07-08 12:23:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-07-08 12:23:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-07-08 12:23:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-07-08 12:23:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-07-08 12:23:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-07-08 12:23:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-07-08 12:23:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-07-08 12:23:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-07-08 12:23:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-07-08 12:23:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-07-08 12:23:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-07-08 12:23:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-07-08 12:23:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-07-08 12:23:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-07-08 12:23:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-07-08 12:23:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-07-08 12:23:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-07-08 12:23:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-07-08 12:23:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-07-08 12:23:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-07-08 12:23:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-07-08 12:23:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-07-08 12:23:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-07-08 12:23:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-07-08 12:23:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-07-08 12:23:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-07-08 12:23:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-07-08 12:23:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-07-08 12:23:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-07-08 12:23:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-07-08 12:23:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-07-08 12:23:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-07-08 12:23:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-07-08 12:23:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-07-08 12:23:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-08 12:23:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-07-08 12:23:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-07-08 12:23:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-07-08 12:23:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-07-08 12:23:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-07-08 12:23:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-07-08 12:23:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-07-08 12:23:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-07-08 12:23:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-07-08 12:23:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-07-08 12:23:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-07-08 12:23:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-07-08 12:23:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-07-08 12:23:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-07-08 12:23:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-07-08 12:23:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-07-08 12:23:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-07-08 12:23:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-07-08 12:23:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-07-08 12:23:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-07-08 12:23:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-07-08 12:23:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-07-08 12:23:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-07-08 12:23:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-07-08 12:23:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-07-08 12:23:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-07-08 12:23:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-07-08 12:23:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-07-08 12:23:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-07-08 12:23:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-07-08 12:23:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-07-08 12:23:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-07-08 12:23:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-07-08 12:23:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-07-08 12:23:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-07-08 12:23:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-07-08 12:23:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-07-08 12:23:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-07-08 12:23:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-07-08 12:23:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-07-08 12:23:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-07-08 12:23:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-07-08 12:23:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-07-08 12:23:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-07-08 12:23:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-07-08 12:23:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-07-08 12:23:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-07-08 12:23:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-07-08 12:23:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-07-08 12:23:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-07-08 12:23:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-07-08 12:23:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-07-08 12:23:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-07-08 12:23:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-07-08 12:23:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-07-08 12:23:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-07-08 12:23:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-07-08 12:23:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-07-08 12:23:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-07-08 12:23:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-07-08 12:23:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-07-08 12:23:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-07-08 12:23:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-08 12:23:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-08 12:23:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-08 12:23:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-08 12:23:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-08 12:23:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-08 12:23:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-08 12:23:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-08 12:23:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-08 12:23:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-08 12:23:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-08 12:23:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-08 12:23:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-08 12:23:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-08 12:23:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-08 12:23:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-08 12:23:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-08 12:23:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-08 12:23:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-08 12:23:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-08 12:23:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-08 12:23:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-08 12:23:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-08 12:23:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-08 12:23:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-08 12:23:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-08 12:23:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-08 12:23:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-08 12:23:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-08 12:23:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-08 12:23:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-08 12:23:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-08 12:23:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-08 12:23:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-08 12:23:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-08 12:23:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-08 12:23:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-08 12:23:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-08 12:23:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-08 12:23:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-08 12:23:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-08 12:23:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-08 12:23:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-08 12:23:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-08 12:23:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-08 12:23:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-08 12:23:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-08 12:23:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-08 12:23:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-08 12:23:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-08 12:23:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-08 12:23:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-08 12:23:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-08 12:23:10,400 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-08 12:23:10,400 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-08 12:23:10,400 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-08 12:23:10,400 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-08 12:23:10,400 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-08 12:23:10,400 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 12:23:10,401 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-08 12:23:10,401 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-08 12:23:10,401 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-08 12:23:10,401 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-08 12:23:10,401 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-08 12:23:10,401 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-07-08 12:23:10,402 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-08 12:23:10,402 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-08 12:23:10,402 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-08 12:23:10,402 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-08 12:23:10,402 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-08 12:23:10,402 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-08 12:23:10,403 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-08 12:23:10,403 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-08 12:23:10,403 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-08 12:23:10,403 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-08 12:23:10,403 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-08 12:23:10,403 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-08 12:23:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-08 12:23:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-08 12:23:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-08 12:23:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-08 12:23:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-08 12:23:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-08 12:23:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-08 12:23:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-08 12:23:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-08 12:23:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-08 12:23:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-08 12:23:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-08 12:23:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-08 12:23:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-08 12:23:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-08 12:23:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-08 12:23:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-08 12:23:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-08 12:23:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-08 12:23:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-08 12:23:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-08 12:23:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-08 12:23:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-07-08 12:23:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-08 12:23:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-08 12:23:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure l_malloc [2020-07-08 12:23:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2020-07-08 12:23:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 12:23:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-08 12:23:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 12:23:10,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 12:23:10,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 12:23:11,009 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 12:23:11,009 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-08 12:23:11,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:23:11 BoogieIcfgContainer [2020-07-08 12:23:11,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 12:23:11,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 12:23:11,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 12:23:11,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 12:23:11,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 12:23:09" (1/3) ... [2020-07-08 12:23:11,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5083f47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:23:11, skipping insertion in model container [2020-07-08 12:23:11,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:23:10" (2/3) ... [2020-07-08 12:23:11,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5083f47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:23:11, skipping insertion in model container [2020-07-08 12:23:11,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:23:11" (3/3) ... [2020-07-08 12:23:11,022 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i [2020-07-08 12:23:11,031 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-08 12:23:11,039 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 12:23:11,053 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 12:23:11,077 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 12:23:11,077 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 12:23:11,077 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-08 12:23:11,077 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 12:23:11,077 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 12:23:11,077 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 12:23:11,078 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 12:23:11,078 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 12:23:11,097 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-07-08 12:23:11,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-08 12:23:11,104 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:23:11,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:23:11,105 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:23:11,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:23:11,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1074821315, now seen corresponding path program 1 times [2020-07-08 12:23:11,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:23:11,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200132775] [2020-07-08 12:23:11,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:23:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:23:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:23:11,371 INFO L280 TraceCheckUtils]: 0: Hoare triple {44#(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;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~globalState~0 := 0; {34#true} is VALID [2020-07-08 12:23:11,372 INFO L280 TraceCheckUtils]: 1: Hoare triple {34#true} assume true; {34#true} is VALID [2020-07-08 12:23:11,372 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {34#true} {34#true} #49#return; {34#true} is VALID [2020-07-08 12:23:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:23:11,455 INFO L280 TraceCheckUtils]: 0: Hoare triple {45#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size;call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size);~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {46#(not (= 0 l_malloc_~retVal~0.base))} is VALID [2020-07-08 12:23:11,457 INFO L280 TraceCheckUtils]: 1: Hoare triple {46#(not (= 0 l_malloc_~retVal~0.base))} assume !(~retVal~0.base != 0 || ~retVal~0.offset != 0); {35#false} is VALID [2020-07-08 12:23:11,458 INFO L280 TraceCheckUtils]: 2: Hoare triple {35#false} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {35#false} is VALID [2020-07-08 12:23:11,458 INFO L280 TraceCheckUtils]: 3: Hoare triple {35#false} assume true; {35#false} is VALID [2020-07-08 12:23:11,458 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {35#false} {34#true} #41#return; {35#false} is VALID [2020-07-08 12:23:11,461 INFO L263 TraceCheckUtils]: 0: Hoare triple {34#true} call ULTIMATE.init(); {44#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 12:23:11,462 INFO L280 TraceCheckUtils]: 1: Hoare triple {44#(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;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~globalState~0 := 0; {34#true} is VALID [2020-07-08 12:23:11,462 INFO L280 TraceCheckUtils]: 2: Hoare triple {34#true} assume true; {34#true} is VALID [2020-07-08 12:23:11,462 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {34#true} {34#true} #49#return; {34#true} is VALID [2020-07-08 12:23:11,463 INFO L263 TraceCheckUtils]: 4: Hoare triple {34#true} call #t~ret32 := main(#in~argc, #in~argv.base, #in~argv.offset); {34#true} is VALID [2020-07-08 12:23:11,463 INFO L280 TraceCheckUtils]: 5: Hoare triple {34#true} ~argc := #in~argc;~argv.base, ~argv.offset := #in~argv.base, #in~argv.offset; {34#true} is VALID [2020-07-08 12:23:11,468 INFO L263 TraceCheckUtils]: 6: Hoare triple {34#true} call #t~ret30.base, #t~ret30.offset := l_malloc(4); {45#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} is VALID [2020-07-08 12:23:11,469 INFO L280 TraceCheckUtils]: 7: Hoare triple {45#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size;call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size);~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {46#(not (= 0 l_malloc_~retVal~0.base))} is VALID [2020-07-08 12:23:11,471 INFO L280 TraceCheckUtils]: 8: Hoare triple {46#(not (= 0 l_malloc_~retVal~0.base))} assume !(~retVal~0.base != 0 || ~retVal~0.offset != 0); {35#false} is VALID [2020-07-08 12:23:11,471 INFO L280 TraceCheckUtils]: 9: Hoare triple {35#false} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {35#false} is VALID [2020-07-08 12:23:11,472 INFO L280 TraceCheckUtils]: 10: Hoare triple {35#false} assume true; {35#false} is VALID [2020-07-08 12:23:11,472 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {35#false} {34#true} #41#return; {35#false} is VALID [2020-07-08 12:23:11,472 INFO L280 TraceCheckUtils]: 12: Hoare triple {35#false} ~a~0.base, ~a~0.offset := #t~ret30.base, #t~ret30.offset;havoc #t~ret30.base, #t~ret30.offset; {35#false} is VALID [2020-07-08 12:23:11,473 INFO L263 TraceCheckUtils]: 13: Hoare triple {35#false} call l_free(~a~0.base, ~a~0.offset); {35#false} is VALID [2020-07-08 12:23:11,473 INFO L280 TraceCheckUtils]: 14: Hoare triple {35#false} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {35#false} is VALID [2020-07-08 12:23:11,478 INFO L280 TraceCheckUtils]: 15: Hoare triple {35#false} assume ~ptr.base != 0 || ~ptr.offset != 0; {35#false} is VALID [2020-07-08 12:23:11,479 INFO L280 TraceCheckUtils]: 16: Hoare triple {35#false} assume !(1 == ~globalState~0); {35#false} is VALID [2020-07-08 12:23:11,479 INFO L263 TraceCheckUtils]: 17: Hoare triple {35#false} call __blast_assert(); {35#false} is VALID [2020-07-08 12:23:11,479 INFO L280 TraceCheckUtils]: 18: Hoare triple {35#false} assume !false; {35#false} is VALID [2020-07-08 12:23:11,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 12:23:11,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200132775] [2020-07-08 12:23:11,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 12:23:11,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 12:23:11,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729550] [2020-07-08 12:23:11,498 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-07-08 12:23:11,505 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:23:11,509 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 12:23:11,562 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:23:11,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 12:23:11,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:23:11,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 12:23:11,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 12:23:11,576 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-07-08 12:23:11,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:23:11,863 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-07-08 12:23:11,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-08 12:23:11,864 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-07-08 12:23:11,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:23:11,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 12:23:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 59 transitions. [2020-07-08 12:23:11,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 12:23:11,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 59 transitions. [2020-07-08 12:23:11,882 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 59 transitions. [2020-07-08 12:23:11,965 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:23:11,977 INFO L225 Difference]: With dead ends: 51 [2020-07-08 12:23:11,978 INFO L226 Difference]: Without dead ends: 24 [2020-07-08 12:23:11,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 12:23:12,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-07-08 12:23:12,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-07-08 12:23:12,047 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:23:12,047 INFO L82 GeneralOperation]: Start isEquivalent. First operand 24 states. Second operand 24 states. [2020-07-08 12:23:12,048 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 24 states. [2020-07-08 12:23:12,048 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 24 states. [2020-07-08 12:23:12,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:23:12,054 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2020-07-08 12:23:12,054 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-07-08 12:23:12,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:23:12,055 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:23:12,055 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 24 states. [2020-07-08 12:23:12,055 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 24 states. [2020-07-08 12:23:12,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:23:12,060 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2020-07-08 12:23:12,061 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-07-08 12:23:12,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:23:12,061 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:23:12,062 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:23:12,062 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:23:12,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-07-08 12:23:12,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-07-08 12:23:12,067 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 19 [2020-07-08 12:23:12,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:23:12,068 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-07-08 12:23:12,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 12:23:12,068 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-07-08 12:23:12,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-08 12:23:12,069 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:23:12,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:23:12,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 12:23:12,070 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:23:12,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:23:12,071 INFO L82 PathProgramCache]: Analyzing trace with hash 373756737, now seen corresponding path program 1 times [2020-07-08 12:23:12,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:23:12,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658240925] [2020-07-08 12:23:12,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:23:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:23:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:23:12,204 INFO L280 TraceCheckUtils]: 0: Hoare triple {213#(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;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~globalState~0 := 0; {202#true} is VALID [2020-07-08 12:23:12,205 INFO L280 TraceCheckUtils]: 1: Hoare triple {202#true} assume true; {202#true} is VALID [2020-07-08 12:23:12,205 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {202#true} {202#true} #49#return; {202#true} is VALID [2020-07-08 12:23:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:23:12,248 INFO L280 TraceCheckUtils]: 0: Hoare triple {214#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size;call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size);~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {202#true} is VALID [2020-07-08 12:23:12,249 INFO L280 TraceCheckUtils]: 1: Hoare triple {202#true} assume ~retVal~0.base != 0 || ~retVal~0.offset != 0;~globalState~0 := 1; {212#(= 1 ~globalState~0)} is VALID [2020-07-08 12:23:12,250 INFO L280 TraceCheckUtils]: 2: Hoare triple {212#(= 1 ~globalState~0)} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {212#(= 1 ~globalState~0)} is VALID [2020-07-08 12:23:12,251 INFO L280 TraceCheckUtils]: 3: Hoare triple {212#(= 1 ~globalState~0)} assume true; {212#(= 1 ~globalState~0)} is VALID [2020-07-08 12:23:12,253 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {212#(= 1 ~globalState~0)} {202#true} #41#return; {212#(= 1 ~globalState~0)} is VALID [2020-07-08 12:23:12,254 INFO L263 TraceCheckUtils]: 0: Hoare triple {202#true} call ULTIMATE.init(); {213#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 12:23:12,255 INFO L280 TraceCheckUtils]: 1: Hoare triple {213#(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;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~globalState~0 := 0; {202#true} is VALID [2020-07-08 12:23:12,255 INFO L280 TraceCheckUtils]: 2: Hoare triple {202#true} assume true; {202#true} is VALID [2020-07-08 12:23:12,255 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {202#true} {202#true} #49#return; {202#true} is VALID [2020-07-08 12:23:12,256 INFO L263 TraceCheckUtils]: 4: Hoare triple {202#true} call #t~ret32 := main(#in~argc, #in~argv.base, #in~argv.offset); {202#true} is VALID [2020-07-08 12:23:12,256 INFO L280 TraceCheckUtils]: 5: Hoare triple {202#true} ~argc := #in~argc;~argv.base, ~argv.offset := #in~argv.base, #in~argv.offset; {202#true} is VALID [2020-07-08 12:23:12,258 INFO L263 TraceCheckUtils]: 6: Hoare triple {202#true} call #t~ret30.base, #t~ret30.offset := l_malloc(4); {214#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} is VALID [2020-07-08 12:23:12,258 INFO L280 TraceCheckUtils]: 7: Hoare triple {214#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size;call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size);~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {202#true} is VALID [2020-07-08 12:23:12,259 INFO L280 TraceCheckUtils]: 8: Hoare triple {202#true} assume ~retVal~0.base != 0 || ~retVal~0.offset != 0;~globalState~0 := 1; {212#(= 1 ~globalState~0)} is VALID [2020-07-08 12:23:12,260 INFO L280 TraceCheckUtils]: 9: Hoare triple {212#(= 1 ~globalState~0)} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {212#(= 1 ~globalState~0)} is VALID [2020-07-08 12:23:12,261 INFO L280 TraceCheckUtils]: 10: Hoare triple {212#(= 1 ~globalState~0)} assume true; {212#(= 1 ~globalState~0)} is VALID [2020-07-08 12:23:12,263 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {212#(= 1 ~globalState~0)} {202#true} #41#return; {212#(= 1 ~globalState~0)} is VALID [2020-07-08 12:23:12,264 INFO L280 TraceCheckUtils]: 12: Hoare triple {212#(= 1 ~globalState~0)} ~a~0.base, ~a~0.offset := #t~ret30.base, #t~ret30.offset;havoc #t~ret30.base, #t~ret30.offset; {212#(= 1 ~globalState~0)} is VALID [2020-07-08 12:23:12,265 INFO L263 TraceCheckUtils]: 13: Hoare triple {212#(= 1 ~globalState~0)} call l_free(~a~0.base, ~a~0.offset); {212#(= 1 ~globalState~0)} is VALID [2020-07-08 12:23:12,266 INFO L280 TraceCheckUtils]: 14: Hoare triple {212#(= 1 ~globalState~0)} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {212#(= 1 ~globalState~0)} is VALID [2020-07-08 12:23:12,267 INFO L280 TraceCheckUtils]: 15: Hoare triple {212#(= 1 ~globalState~0)} assume ~ptr.base != 0 || ~ptr.offset != 0; {212#(= 1 ~globalState~0)} is VALID [2020-07-08 12:23:12,268 INFO L280 TraceCheckUtils]: 16: Hoare triple {212#(= 1 ~globalState~0)} assume !(1 == ~globalState~0); {203#false} is VALID [2020-07-08 12:23:12,268 INFO L263 TraceCheckUtils]: 17: Hoare triple {203#false} call __blast_assert(); {203#false} is VALID [2020-07-08 12:23:12,269 INFO L280 TraceCheckUtils]: 18: Hoare triple {203#false} assume !false; {203#false} is VALID [2020-07-08 12:23:12,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 12:23:12,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658240925] [2020-07-08 12:23:12,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 12:23:12,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 12:23:12,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169198773] [2020-07-08 12:23:12,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-07-08 12:23:12,274 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:23:12,274 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 12:23:12,302 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:23:12,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 12:23:12,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:23:12,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 12:23:12,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 12:23:12,304 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 5 states. [2020-07-08 12:23:12,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:23:12,558 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2020-07-08 12:23:12,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-08 12:23:12,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-07-08 12:23:12,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:23:12,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 12:23:12,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2020-07-08 12:23:12,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 12:23:12,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2020-07-08 12:23:12,565 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 33 transitions. [2020-07-08 12:23:12,615 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:23:12,617 INFO L225 Difference]: With dead ends: 31 [2020-07-08 12:23:12,617 INFO L226 Difference]: Without dead ends: 27 [2020-07-08 12:23:12,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-08 12:23:12,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-07-08 12:23:12,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-07-08 12:23:12,646 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:23:12,646 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 27 states. [2020-07-08 12:23:12,647 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2020-07-08 12:23:12,647 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2020-07-08 12:23:12,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:23:12,649 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-07-08 12:23:12,650 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-07-08 12:23:12,650 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:23:12,650 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:23:12,651 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2020-07-08 12:23:12,651 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2020-07-08 12:23:12,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:23:12,654 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-07-08 12:23:12,654 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-07-08 12:23:12,654 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:23:12,655 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:23:12,655 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:23:12,655 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:23:12,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-08 12:23:12,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-07-08 12:23:12,657 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 19 [2020-07-08 12:23:12,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:23:12,658 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-07-08 12:23:12,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 12:23:12,658 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-07-08 12:23:12,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-08 12:23:12,659 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:23:12,659 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] [2020-07-08 12:23:12,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 12:23:12,659 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:23:12,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:23:12,660 INFO L82 PathProgramCache]: Analyzing trace with hash -568191789, now seen corresponding path program 1 times [2020-07-08 12:23:12,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:23:12,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109839671] [2020-07-08 12:23:12,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:23:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:23:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:23:12,740 INFO L280 TraceCheckUtils]: 0: Hoare triple {377#(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;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~globalState~0 := 0; {360#true} is VALID [2020-07-08 12:23:12,741 INFO L280 TraceCheckUtils]: 1: Hoare triple {360#true} assume true; {360#true} is VALID [2020-07-08 12:23:12,741 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {360#true} {360#true} #49#return; {360#true} is VALID [2020-07-08 12:23:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:23:12,817 INFO L280 TraceCheckUtils]: 0: Hoare triple {378#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size;call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size);~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {379#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-08 12:23:12,817 INFO L280 TraceCheckUtils]: 1: Hoare triple {379#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} assume ~retVal~0.base != 0 || ~retVal~0.offset != 0;~globalState~0 := 1; {379#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-08 12:23:12,818 INFO L280 TraceCheckUtils]: 2: Hoare triple {379#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {380#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} is VALID [2020-07-08 12:23:12,819 INFO L280 TraceCheckUtils]: 3: Hoare triple {380#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} assume true; {380#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} is VALID [2020-07-08 12:23:12,820 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {380#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} {360#true} #41#return; {370#(not (= 0 |main_#t~ret30.base|))} is VALID [2020-07-08 12:23:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:23:12,873 INFO L280 TraceCheckUtils]: 0: Hoare triple {381#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|))} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {382#(= |l_free_#in~ptr.base| l_free_~ptr.base)} is VALID [2020-07-08 12:23:12,874 INFO L280 TraceCheckUtils]: 1: Hoare triple {382#(= |l_free_#in~ptr.base| l_free_~ptr.base)} assume !(~ptr.base != 0 || ~ptr.offset != 0); {383#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-08 12:23:12,874 INFO L280 TraceCheckUtils]: 2: Hoare triple {383#(= 0 |l_free_#in~ptr.base|)} ~globalState~0 := 0;call ULTIMATE.dealloc(~ptr.base, ~ptr.offset); {383#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-08 12:23:12,875 INFO L280 TraceCheckUtils]: 3: Hoare triple {383#(= 0 |l_free_#in~ptr.base|)} assume true; {383#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-08 12:23:12,876 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {383#(= 0 |l_free_#in~ptr.base|)} {371#(not (= 0 main_~a~0.base))} #43#return; {361#false} is VALID [2020-07-08 12:23:12,878 INFO L263 TraceCheckUtils]: 0: Hoare triple {360#true} call ULTIMATE.init(); {377#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 12:23:12,878 INFO L280 TraceCheckUtils]: 1: Hoare triple {377#(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;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~globalState~0 := 0; {360#true} is VALID [2020-07-08 12:23:12,878 INFO L280 TraceCheckUtils]: 2: Hoare triple {360#true} assume true; {360#true} is VALID [2020-07-08 12:23:12,879 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {360#true} {360#true} #49#return; {360#true} is VALID [2020-07-08 12:23:12,879 INFO L263 TraceCheckUtils]: 4: Hoare triple {360#true} call #t~ret32 := main(#in~argc, #in~argv.base, #in~argv.offset); {360#true} is VALID [2020-07-08 12:23:12,879 INFO L280 TraceCheckUtils]: 5: Hoare triple {360#true} ~argc := #in~argc;~argv.base, ~argv.offset := #in~argv.base, #in~argv.offset; {360#true} is VALID [2020-07-08 12:23:12,880 INFO L263 TraceCheckUtils]: 6: Hoare triple {360#true} call #t~ret30.base, #t~ret30.offset := l_malloc(4); {378#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} is VALID [2020-07-08 12:23:12,882 INFO L280 TraceCheckUtils]: 7: Hoare triple {378#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size;call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size);~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {379#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-08 12:23:12,882 INFO L280 TraceCheckUtils]: 8: Hoare triple {379#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} assume ~retVal~0.base != 0 || ~retVal~0.offset != 0;~globalState~0 := 1; {379#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-08 12:23:12,883 INFO L280 TraceCheckUtils]: 9: Hoare triple {379#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {380#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} is VALID [2020-07-08 12:23:12,884 INFO L280 TraceCheckUtils]: 10: Hoare triple {380#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} assume true; {380#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} is VALID [2020-07-08 12:23:12,885 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {380#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} {360#true} #41#return; {370#(not (= 0 |main_#t~ret30.base|))} is VALID [2020-07-08 12:23:12,886 INFO L280 TraceCheckUtils]: 12: Hoare triple {370#(not (= 0 |main_#t~ret30.base|))} ~a~0.base, ~a~0.offset := #t~ret30.base, #t~ret30.offset;havoc #t~ret30.base, #t~ret30.offset; {371#(not (= 0 main_~a~0.base))} is VALID [2020-07-08 12:23:12,887 INFO L263 TraceCheckUtils]: 13: Hoare triple {371#(not (= 0 main_~a~0.base))} call l_free(~a~0.base, ~a~0.offset); {381#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|))} is VALID [2020-07-08 12:23:12,888 INFO L280 TraceCheckUtils]: 14: Hoare triple {381#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|))} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {382#(= |l_free_#in~ptr.base| l_free_~ptr.base)} is VALID [2020-07-08 12:23:12,889 INFO L280 TraceCheckUtils]: 15: Hoare triple {382#(= |l_free_#in~ptr.base| l_free_~ptr.base)} assume !(~ptr.base != 0 || ~ptr.offset != 0); {383#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-08 12:23:12,890 INFO L280 TraceCheckUtils]: 16: Hoare triple {383#(= 0 |l_free_#in~ptr.base|)} ~globalState~0 := 0;call ULTIMATE.dealloc(~ptr.base, ~ptr.offset); {383#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-08 12:23:12,890 INFO L280 TraceCheckUtils]: 17: Hoare triple {383#(= 0 |l_free_#in~ptr.base|)} assume true; {383#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-08 12:23:12,891 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {383#(= 0 |l_free_#in~ptr.base|)} {371#(not (= 0 main_~a~0.base))} #43#return; {361#false} is VALID [2020-07-08 12:23:12,892 INFO L263 TraceCheckUtils]: 19: Hoare triple {361#false} call l_free(~a~0.base, ~a~0.offset); {361#false} is VALID [2020-07-08 12:23:12,892 INFO L280 TraceCheckUtils]: 20: Hoare triple {361#false} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {361#false} is VALID [2020-07-08 12:23:12,892 INFO L280 TraceCheckUtils]: 21: Hoare triple {361#false} assume ~ptr.base != 0 || ~ptr.offset != 0; {361#false} is VALID [2020-07-08 12:23:12,893 INFO L280 TraceCheckUtils]: 22: Hoare triple {361#false} assume !(1 == ~globalState~0); {361#false} is VALID [2020-07-08 12:23:12,893 INFO L263 TraceCheckUtils]: 23: Hoare triple {361#false} call __blast_assert(); {361#false} is VALID [2020-07-08 12:23:12,893 INFO L280 TraceCheckUtils]: 24: Hoare triple {361#false} assume !false; {361#false} is VALID [2020-07-08 12:23:12,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 12:23:12,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109839671] [2020-07-08 12:23:12,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 12:23:12,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-08 12:23:12,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289102357] [2020-07-08 12:23:12,896 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-07-08 12:23:12,897 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:23:12,897 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-08 12:23:12,926 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:23:12,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-08 12:23:12,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:23:12,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-08 12:23:12,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-08 12:23:12,927 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 11 states. [2020-07-08 12:23:13,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:23:13,522 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2020-07-08 12:23:13,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-08 12:23:13,522 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-07-08 12:23:13,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:23:13,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 12:23:13,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 37 transitions. [2020-07-08 12:23:13,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 12:23:13,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 37 transitions. [2020-07-08 12:23:13,532 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 37 transitions. [2020-07-08 12:23:13,590 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:23:13,592 INFO L225 Difference]: With dead ends: 40 [2020-07-08 12:23:13,592 INFO L226 Difference]: Without dead ends: 27 [2020-07-08 12:23:13,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-07-08 12:23:13,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-07-08 12:23:13,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-07-08 12:23:13,634 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:23:13,634 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 27 states. [2020-07-08 12:23:13,634 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2020-07-08 12:23:13,634 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2020-07-08 12:23:13,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:23:13,640 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-07-08 12:23:13,640 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-07-08 12:23:13,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:23:13,641 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:23:13,641 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2020-07-08 12:23:13,641 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2020-07-08 12:23:13,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:23:13,644 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-07-08 12:23:13,645 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-07-08 12:23:13,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:23:13,645 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:23:13,646 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:23:13,646 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:23:13,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-08 12:23:13,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-07-08 12:23:13,651 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2020-07-08 12:23:13,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:23:13,654 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-07-08 12:23:13,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-08 12:23:13,655 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-07-08 12:23:13,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-08 12:23:13,656 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:23:13,656 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:23:13,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 12:23:13,659 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:23:13,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:23:13,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1903526385, now seen corresponding path program 1 times [2020-07-08 12:23:13,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:23:13,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601708197] [2020-07-08 12:23:13,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:23:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 12:23:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 12:23:13,749 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-08 12:23:13,749 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 12:23:13,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-08 12:23:13,784 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-08 12:23:13,784 WARN L170 areAnnotationChecker]: l_mallocENTRY has no Hoare annotation [2020-07-08 12:23:13,784 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 12:23:13,784 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 12:23:13,784 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-08 12:23:13,784 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-08 12:23:13,785 WARN L170 areAnnotationChecker]: l_freeENTRY has no Hoare annotation [2020-07-08 12:23:13,785 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 12:23:13,785 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 12:23:13,785 WARN L170 areAnnotationChecker]: L1620 has no Hoare annotation [2020-07-08 12:23:13,785 WARN L170 areAnnotationChecker]: L1620 has no Hoare annotation [2020-07-08 12:23:13,785 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 12:23:13,785 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 12:23:13,785 WARN L170 areAnnotationChecker]: __blast_assertFINAL has no Hoare annotation [2020-07-08 12:23:13,785 WARN L170 areAnnotationChecker]: L1629 has no Hoare annotation [2020-07-08 12:23:13,786 WARN L170 areAnnotationChecker]: L1629 has no Hoare annotation [2020-07-08 12:23:13,786 WARN L170 areAnnotationChecker]: L1612 has no Hoare annotation [2020-07-08 12:23:13,786 WARN L170 areAnnotationChecker]: L1612 has no Hoare annotation [2020-07-08 12:23:13,786 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 12:23:13,786 WARN L170 areAnnotationChecker]: L1620-2 has no Hoare annotation [2020-07-08 12:23:13,786 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 12:23:13,786 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2020-07-08 12:23:13,786 WARN L170 areAnnotationChecker]: L1629-1 has no Hoare annotation [2020-07-08 12:23:13,786 WARN L170 areAnnotationChecker]: L1629-1 has no Hoare annotation [2020-07-08 12:23:13,787 WARN L170 areAnnotationChecker]: L1629-5 has no Hoare annotation [2020-07-08 12:23:13,787 WARN L170 areAnnotationChecker]: L1612-1 has no Hoare annotation [2020-07-08 12:23:13,787 WARN L170 areAnnotationChecker]: l_mallocFINAL has no Hoare annotation [2020-07-08 12:23:13,787 WARN L170 areAnnotationChecker]: L1629-3 has no Hoare annotation [2020-07-08 12:23:13,787 WARN L170 areAnnotationChecker]: L1629-3 has no Hoare annotation [2020-07-08 12:23:13,787 WARN L170 areAnnotationChecker]: l_freeFINAL has no Hoare annotation [2020-07-08 12:23:13,787 WARN L170 areAnnotationChecker]: L1613 has no Hoare annotation [2020-07-08 12:23:13,787 WARN L170 areAnnotationChecker]: L1613 has no Hoare annotation [2020-07-08 12:23:13,787 WARN L170 areAnnotationChecker]: l_mallocEXIT has no Hoare annotation [2020-07-08 12:23:13,788 WARN L170 areAnnotationChecker]: l_freeEXIT has no Hoare annotation [2020-07-08 12:23:13,788 WARN L170 areAnnotationChecker]: l_freeEXIT has no Hoare annotation [2020-07-08 12:23:13,788 WARN L170 areAnnotationChecker]: L1613-1 has no Hoare annotation [2020-07-08 12:23:13,788 WARN L170 areAnnotationChecker]: L1613-1 has no Hoare annotation [2020-07-08 12:23:13,788 WARN L170 areAnnotationChecker]: L1614 has no Hoare annotation [2020-07-08 12:23:13,788 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 12:23:13,788 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 12:23:13,788 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 12:23:13,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 12:23:13 BoogieIcfgContainer [2020-07-08 12:23:13,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 12:23:13,794 INFO L168 Benchmark]: Toolchain (without parser) took 4442.09 ms. Allocated memory was 143.1 MB in the beginning and 253.8 MB in the end (delta: 110.6 MB). Free memory was 99.2 MB in the beginning and 158.3 MB in the end (delta: -59.2 MB). Peak memory consumption was 51.5 MB. Max. memory is 7.1 GB. [2020-07-08 12:23:13,795 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 143.1 MB. Free memory is still 119.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-08 12:23:13,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 870.01 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 98.7 MB in the beginning and 147.6 MB in the end (delta: -48.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-07-08 12:23:13,796 INFO L168 Benchmark]: Boogie Preprocessor took 70.70 ms. Allocated memory is still 200.3 MB. Free memory was 147.6 MB in the beginning and 143.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-08 12:23:13,797 INFO L168 Benchmark]: RCFGBuilder took 715.54 ms. Allocated memory was 200.3 MB in the beginning and 229.1 MB in the end (delta: 28.8 MB). Free memory was 143.5 MB in the beginning and 198.6 MB in the end (delta: -55.0 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. [2020-07-08 12:23:13,798 INFO L168 Benchmark]: TraceAbstraction took 2776.23 ms. Allocated memory was 229.1 MB in the beginning and 253.8 MB in the end (delta: 24.6 MB). Free memory was 196.8 MB in the beginning and 158.3 MB in the end (delta: 38.5 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. [2020-07-08 12:23:13,802 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 143.1 MB. Free memory is still 119.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 870.01 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 98.7 MB in the beginning and 147.6 MB in the end (delta: -48.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.70 ms. Allocated memory is still 200.3 MB. Free memory was 147.6 MB in the beginning and 143.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 715.54 ms. Allocated memory was 200.3 MB in the beginning and 229.1 MB in the end (delta: 28.8 MB). Free memory was 143.5 MB in the beginning and 198.6 MB in the end (delta: -55.0 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2776.23 ms. Allocated memory was 229.1 MB in the beginning and 253.8 MB in the end (delta: 24.6 MB). Free memory was 196.8 MB in the beginning and 158.3 MB in the end (delta: 38.5 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1601]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1606] int globalState = 0; VAL [\old(globalState)=7, globalState=0] [L1612] CALL, EXPR l_malloc(sizeof(int)) VAL [\old(globalState)=0, \old(size)=4, globalState=0] [L1619] void *retVal = malloc(size); VAL [\old(globalState)=0, \old(size)=4, globalState=0, malloc(size)={-1:0}, retVal={-1:0}, size=4] [L1620] COND TRUE retVal != ((void *)0) [L1621] globalState=1 VAL [\old(globalState)=0, \old(size)=4, globalState=1, malloc(size)={-1:0}, retVal={-1:0}, size=4] [L1622] return retVal; VAL [\old(globalState)=0, \old(size)=4, \result={-1:0}, globalState=1, malloc(size)={-1:0}, retVal={-1:0}, size=4] [L1612] RET, EXPR l_malloc(sizeof(int)) VAL [\old(argc)=10, \old(globalState)=0, argc=10, argv={8:6}, argv={8:6}, globalState=1, l_malloc(sizeof(int))={-1:0}] [L1612] int *a = (int*) l_malloc(sizeof(int)); [L1613] CALL l_free(a) VAL [\old(globalState)=1, globalState=1, ptr={-1:0}] [L1629] COND TRUE ptr!=((void *)0) VAL [\old(globalState)=1, globalState=1, ptr={-1:0}, ptr={-1:0}] [L1629] (globalState == 1) ? (0) : __blast_assert () VAL [\old(globalState)=1, globalState=1, ptr={-1:0}, ptr={-1:0}] [L1630] globalState = 0 [L1613] RET l_free(a) VAL [\old(argc)=10, \old(globalState)=0, a={-1:0}, argc=10, argv={8:6}, argv={8:6}, globalState=0] [L1614] CALL l_free(a) VAL [\old(globalState)=0, globalState=0, ptr={-1:0}] [L1629] COND TRUE ptr!=((void *)0) VAL [\old(globalState)=0, globalState=0, ptr={-1:0}, ptr={-1:0}] [L1629] (globalState == 1) ? (0) : __blast_assert () VAL [\old(globalState)=0, globalState=0, ptr={-1:0}, ptr={-1:0}] [L1629] CALL __blast_assert () VAL [\old(globalState)=0, globalState=0] [L1601] __VERIFIER_error() VAL [\old(globalState)=0, globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 63 SDslu, 113 SDs, 0 SdLazy, 181 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 4074 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...