/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/alt_test.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 19:00:30,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 19:00:30,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 19:00:30,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 19:00:30,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 19:00:30,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 19:00:30,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 19:00:30,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 19:00:30,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 19:00:30,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 19:00:30,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 19:00:30,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 19:00:30,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 19:00:30,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 19:00:30,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 19:00:30,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 19:00:30,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 19:00:30,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 19:00:30,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 19:00:30,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 19:00:30,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 19:00:30,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 19:00:30,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 19:00:30,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 19:00:30,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-10 19:00:30,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-10 19:00:30,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-10 19:00:30,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-10 19:00:30,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-10 19:00:30,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-10 19:00:30,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 19:00:30,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 19:00:30,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 19:00:30,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 19:00:30,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 19:00:30,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 19:00:30,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 19:00:30,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 19:00:30,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 19:00:30,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 19:00:30,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 19:00:30,206 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 19:00:30,216 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 19:00:30,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 19:00:30,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 19:00:30,218 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 19:00:30,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 19:00:30,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 19:00:30,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 19:00:30,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 19:00:30,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 19:00:30,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 19:00:30,220 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 19:00:30,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 19:00:30,220 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 19:00:30,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 19:00:30,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 19:00:30,221 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 19:00:30,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 19:00:30,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 19:00:30,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 19:00:30,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 19:00:30,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 19:00:30,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 19:00:30,223 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 19:00:30,501 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 19:00:30,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 19:00:30,524 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 19:00:30,526 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 19:00:30,527 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 19:00:30,528 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alt_test.i [2020-07-10 19:00:30,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29d404043/10eee2dd1f1c45bb820266d6e8e9e57b/FLAG041f5ce66 [2020-07-10 19:00:31,206 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 19:00:31,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/alt_test.i [2020-07-10 19:00:31,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29d404043/10eee2dd1f1c45bb820266d6e8e9e57b/FLAG041f5ce66 [2020-07-10 19:00:31,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29d404043/10eee2dd1f1c45bb820266d6e8e9e57b [2020-07-10 19:00:31,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 19:00:31,474 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 19:00:31,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 19:00:31,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 19:00:31,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 19:00:31,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 07:00:31" (1/1) ... [2020-07-10 19:00:31,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c740b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:00:31, skipping insertion in model container [2020-07-10 19:00:31,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 07:00:31" (1/1) ... [2020-07-10 19:00:31,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 19:00:31,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 19:00:32,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 19:00:32,128 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 19:00:32,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 19:00:32,291 INFO L208 MainTranslator]: Completed translation [2020-07-10 19:00:32,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:00:32 WrapperNode [2020-07-10 19:00:32,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 19:00:32,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 19:00:32,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 19:00:32,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 19:00:32,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:00:32" (1/1) ... [2020-07-10 19:00:32,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:00:32" (1/1) ... [2020-07-10 19:00:32,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:00:32" (1/1) ... [2020-07-10 19:00:32,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:00:32" (1/1) ... [2020-07-10 19:00:32,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:00:32" (1/1) ... [2020-07-10 19:00:32,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:00:32" (1/1) ... [2020-07-10 19:00:32,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:00:32" (1/1) ... [2020-07-10 19:00:32,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 19:00:32,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 19:00:32,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 19:00:32,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 19:00:32,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:00:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 19:00:32,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 19:00:32,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 19:00:32,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-10 19:00:32,527 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 19:00:32,527 INFO L138 BoogieDeclarations]: Found implementation of procedure l_malloc [2020-07-10 19:00:32,528 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2020-07-10 19:00:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 19:00:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-07-10 19:00:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-07-10 19:00:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-07-10 19:00:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-07-10 19:00:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-07-10 19:00:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-07-10 19:00:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-07-10 19:00:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-07-10 19:00:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-07-10 19:00:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-07-10 19:00:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-07-10 19:00:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-07-10 19:00:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-07-10 19:00:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-07-10 19:00:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-07-10 19:00:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-07-10 19:00:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-07-10 19:00:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-07-10 19:00:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-07-10 19:00:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-07-10 19:00:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-07-10 19:00:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-07-10 19:00:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-07-10 19:00:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-07-10 19:00:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-07-10 19:00:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-07-10 19:00:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-07-10 19:00:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-07-10 19:00:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-07-10 19:00:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-07-10 19:00:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-07-10 19:00:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-07-10 19:00:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-07-10 19:00:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-07-10 19:00:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-07-10 19:00:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-07-10 19:00:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-07-10 19:00:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-07-10 19:00:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-10 19:00:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-07-10 19:00:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-07-10 19:00:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-07-10 19:00:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-07-10 19:00:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-07-10 19:00:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-07-10 19:00:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-07-10 19:00:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-07-10 19:00:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-07-10 19:00:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-07-10 19:00:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-07-10 19:00:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-07-10 19:00:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-07-10 19:00:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-07-10 19:00:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-07-10 19:00:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-07-10 19:00:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-07-10 19:00:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-07-10 19:00:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-07-10 19:00:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-07-10 19:00:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-07-10 19:00:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-07-10 19:00:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-07-10 19:00:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-07-10 19:00:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-07-10 19:00:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-07-10 19:00:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-07-10 19:00:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-07-10 19:00:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-07-10 19:00:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-07-10 19:00:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-07-10 19:00:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-07-10 19:00:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-07-10 19:00:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-07-10 19:00:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-07-10 19:00:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-07-10 19:00:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-07-10 19:00:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-07-10 19:00:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-07-10 19:00:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-07-10 19:00:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-07-10 19:00:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-07-10 19:00:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-07-10 19:00:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-07-10 19:00:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-07-10 19:00:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-07-10 19:00:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-07-10 19:00:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-07-10 19:00:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-07-10 19:00:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-07-10 19:00:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-07-10 19:00:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-07-10 19:00:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-07-10 19:00:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-07-10 19:00:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-07-10 19:00:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-07-10 19:00:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-07-10 19:00:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-07-10 19:00:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-07-10 19:00:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-07-10 19:00:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-07-10 19:00:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-07-10 19:00:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-10 19:00:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-10 19:00:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-10 19:00:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-10 19:00:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-10 19:00:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-10 19:00:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-10 19:00:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-10 19:00:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-10 19:00:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-10 19:00:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-10 19:00:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-10 19:00:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-10 19:00:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-10 19:00:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-10 19:00:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-10 19:00:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-10 19:00:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-10 19:00:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-10 19:00:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-10 19:00:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-10 19:00:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-10 19:00:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-10 19:00:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-10 19:00:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-10 19:00:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-10 19:00:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-10 19:00:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-10 19:00:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-10 19:00:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-10 19:00:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-10 19:00:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-10 19:00:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-10 19:00:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-10 19:00:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-10 19:00:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-10 19:00:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-10 19:00:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-10 19:00:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-10 19:00:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-10 19:00:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-10 19:00:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-10 19:00:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-10 19:00:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-10 19:00:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-10 19:00:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-10 19:00:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-10 19:00:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-10 19:00:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-10 19:00:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-10 19:00:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-10 19:00:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-10 19:00:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-10 19:00:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-10 19:00:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-10 19:00:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-10 19:00:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-10 19:00:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-10 19:00:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 19:00:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-10 19:00:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-10 19:00:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-10 19:00:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-10 19:00:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-10 19:00:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-07-10 19:00:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-10 19:00:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-10 19:00:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-10 19:00:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-10 19:00:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-10 19:00:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-10 19:00:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-10 19:00:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-10 19:00:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-10 19:00:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-10 19:00:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-10 19:00:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-10 19:00:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-10 19:00:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-10 19:00:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-10 19:00:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-10 19:00:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-10 19:00:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-10 19:00:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-10 19:00:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-10 19:00:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-10 19:00:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-10 19:00:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-10 19:00:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-10 19:00:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-10 19:00:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-10 19:00:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-10 19:00:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-10 19:00:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-10 19:00:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-10 19:00:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-10 19:00:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-10 19:00:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-10 19:00:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-10 19:00:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-07-10 19:00:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-10 19:00:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-10 19:00:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure l_malloc [2020-07-10 19:00:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2020-07-10 19:00:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 19:00:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-10 19:00:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 19:00:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 19:00:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 19:00:33,291 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 19:00:33,292 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-10 19:00:33,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 07:00:33 BoogieIcfgContainer [2020-07-10 19:00:33,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 19:00:33,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 19:00:33,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 19:00:33,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 19:00:33,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 07:00:31" (1/3) ... [2020-07-10 19:00:33,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135cd26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 07:00:33, skipping insertion in model container [2020-07-10 19:00:33,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:00:32" (2/3) ... [2020-07-10 19:00:33,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135cd26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 07:00:33, skipping insertion in model container [2020-07-10 19:00:33,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 07:00:33" (3/3) ... [2020-07-10 19:00:33,308 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i [2020-07-10 19:00:33,323 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 19:00:33,333 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 19:00:33,350 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 19:00:33,378 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 19:00:33,379 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 19:00:33,379 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 19:00:33,379 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 19:00:33,379 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 19:00:33,379 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 19:00:33,379 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 19:00:33,380 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 19:00:33,397 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-10 19:00:33,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-10 19:00:33,410 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:00:33,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 19:00:33,412 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 19:00:33,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:00:33,420 INFO L82 PathProgramCache]: Analyzing trace with hash -464537204, now seen corresponding path program 1 times [2020-07-10 19:00:33,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:00:33,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365991326] [2020-07-10 19:00:33,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:00:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:00:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:00:33,786 INFO L280 TraceCheckUtils]: 0: Hoare triple {58#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {43#true} is VALID [2020-07-10 19:00:33,787 INFO L280 TraceCheckUtils]: 1: Hoare triple {43#true} #valid := #valid[0 := 0]; {43#true} is VALID [2020-07-10 19:00:33,787 INFO L280 TraceCheckUtils]: 2: Hoare triple {43#true} assume 0 < #StackHeapBarrier; {43#true} is VALID [2020-07-10 19:00:33,789 INFO L280 TraceCheckUtils]: 3: Hoare triple {43#true} ~globalState~0 := 0; {43#true} is VALID [2020-07-10 19:00:33,790 INFO L280 TraceCheckUtils]: 4: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-10 19:00:33,790 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {43#true} {43#true} #58#return; {43#true} is VALID [2020-07-10 19:00:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:00:33,920 INFO L280 TraceCheckUtils]: 0: Hoare triple {59#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size; {43#true} is VALID [2020-07-10 19:00:33,923 INFO L280 TraceCheckUtils]: 1: Hoare triple {43#true} SUMMARY for call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size); srcloc: L1619 {60#(not (= 0 |l_malloc_#t~malloc31.base|))} is VALID [2020-07-10 19:00:33,924 INFO L280 TraceCheckUtils]: 2: Hoare triple {60#(not (= 0 |l_malloc_#t~malloc31.base|))} ~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {61#(not (= 0 l_malloc_~retVal~0.base))} is VALID [2020-07-10 19:00:33,925 INFO L280 TraceCheckUtils]: 3: Hoare triple {61#(not (= 0 l_malloc_~retVal~0.base))} assume !(~retVal~0.base != 0 || ~retVal~0.offset != 0); {44#false} is VALID [2020-07-10 19:00:33,926 INFO L280 TraceCheckUtils]: 4: Hoare triple {44#false} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {44#false} is VALID [2020-07-10 19:00:33,926 INFO L280 TraceCheckUtils]: 5: Hoare triple {44#false} assume true; {44#false} is VALID [2020-07-10 19:00:33,927 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {44#false} {43#true} #50#return; {44#false} is VALID [2020-07-10 19:00:33,930 INFO L263 TraceCheckUtils]: 0: Hoare triple {43#true} call ULTIMATE.init(); {58#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:00:33,930 INFO L280 TraceCheckUtils]: 1: Hoare triple {58#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {43#true} is VALID [2020-07-10 19:00:33,931 INFO L280 TraceCheckUtils]: 2: Hoare triple {43#true} #valid := #valid[0 := 0]; {43#true} is VALID [2020-07-10 19:00:33,931 INFO L280 TraceCheckUtils]: 3: Hoare triple {43#true} assume 0 < #StackHeapBarrier; {43#true} is VALID [2020-07-10 19:00:33,932 INFO L280 TraceCheckUtils]: 4: Hoare triple {43#true} ~globalState~0 := 0; {43#true} is VALID [2020-07-10 19:00:33,932 INFO L280 TraceCheckUtils]: 5: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-10 19:00:33,932 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {43#true} {43#true} #58#return; {43#true} is VALID [2020-07-10 19:00:33,933 INFO L263 TraceCheckUtils]: 7: Hoare triple {43#true} call #t~ret32 := main(#in~argc, #in~argv.base, #in~argv.offset); {43#true} is VALID [2020-07-10 19:00:33,933 INFO L280 TraceCheckUtils]: 8: Hoare triple {43#true} ~argc := #in~argc; {43#true} is VALID [2020-07-10 19:00:33,933 INFO L280 TraceCheckUtils]: 9: Hoare triple {43#true} ~argv.base, ~argv.offset := #in~argv.base, #in~argv.offset; {43#true} is VALID [2020-07-10 19:00:33,935 INFO L263 TraceCheckUtils]: 10: Hoare triple {43#true} call #t~ret30.base, #t~ret30.offset := l_malloc(4); {59#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 19:00:33,936 INFO L280 TraceCheckUtils]: 11: Hoare triple {59#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size; {43#true} is VALID [2020-07-10 19:00:33,937 INFO L280 TraceCheckUtils]: 12: Hoare triple {43#true} SUMMARY for call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size); srcloc: L1619 {60#(not (= 0 |l_malloc_#t~malloc31.base|))} is VALID [2020-07-10 19:00:33,938 INFO L280 TraceCheckUtils]: 13: Hoare triple {60#(not (= 0 |l_malloc_#t~malloc31.base|))} ~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {61#(not (= 0 l_malloc_~retVal~0.base))} is VALID [2020-07-10 19:00:33,940 INFO L280 TraceCheckUtils]: 14: Hoare triple {61#(not (= 0 l_malloc_~retVal~0.base))} assume !(~retVal~0.base != 0 || ~retVal~0.offset != 0); {44#false} is VALID [2020-07-10 19:00:33,940 INFO L280 TraceCheckUtils]: 15: Hoare triple {44#false} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {44#false} is VALID [2020-07-10 19:00:33,941 INFO L280 TraceCheckUtils]: 16: Hoare triple {44#false} assume true; {44#false} is VALID [2020-07-10 19:00:33,941 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {44#false} {43#true} #50#return; {44#false} is VALID [2020-07-10 19:00:33,941 INFO L280 TraceCheckUtils]: 18: Hoare triple {44#false} ~a~0.base, ~a~0.offset := #t~ret30.base, #t~ret30.offset; {44#false} is VALID [2020-07-10 19:00:33,942 INFO L280 TraceCheckUtils]: 19: Hoare triple {44#false} havoc #t~ret30.base, #t~ret30.offset; {44#false} is VALID [2020-07-10 19:00:33,942 INFO L263 TraceCheckUtils]: 20: Hoare triple {44#false} call l_free(~a~0.base, ~a~0.offset); {44#false} is VALID [2020-07-10 19:00:33,942 INFO L280 TraceCheckUtils]: 21: Hoare triple {44#false} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {44#false} is VALID [2020-07-10 19:00:33,943 INFO L280 TraceCheckUtils]: 22: Hoare triple {44#false} assume ~ptr.base != 0 || ~ptr.offset != 0; {44#false} is VALID [2020-07-10 19:00:33,943 INFO L280 TraceCheckUtils]: 23: Hoare triple {44#false} assume !(1 == ~globalState~0); {44#false} is VALID [2020-07-10 19:00:33,943 INFO L263 TraceCheckUtils]: 24: Hoare triple {44#false} call __blast_assert(); {44#false} is VALID [2020-07-10 19:00:33,944 INFO L280 TraceCheckUtils]: 25: Hoare triple {44#false} assume !false; {44#false} is VALID [2020-07-10 19:00:33,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:00:33,949 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:00:33,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365991326] [2020-07-10 19:00:33,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:00:33,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-10 19:00:33,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7626579] [2020-07-10 19:00:33,962 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-10 19:00:33,966 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:00:33,970 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-10 19:00:34,021 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:00:34,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-10 19:00:34,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:00:34,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-10 19:00:34,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-10 19:00:34,035 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 6 states. [2020-07-10 19:00:34,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:00:34,629 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2020-07-10 19:00:34,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 19:00:34,630 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-10 19:00:34,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:00:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-10 19:00:34,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions. [2020-07-10 19:00:34,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-10 19:00:34,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions. [2020-07-10 19:00:34,654 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 70 transitions. [2020-07-10 19:00:34,780 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:00:34,795 INFO L225 Difference]: With dead ends: 62 [2020-07-10 19:00:34,796 INFO L226 Difference]: Without dead ends: 33 [2020-07-10 19:00:34,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-10 19:00:34,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-07-10 19:00:34,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-07-10 19:00:34,931 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:00:34,932 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand 33 states. [2020-07-10 19:00:34,932 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 33 states. [2020-07-10 19:00:34,933 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 33 states. [2020-07-10 19:00:34,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:00:34,939 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-07-10 19:00:34,939 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-07-10 19:00:34,940 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:00:34,940 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:00:34,941 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 33 states. [2020-07-10 19:00:34,941 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 33 states. [2020-07-10 19:00:34,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:00:34,946 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-07-10 19:00:34,946 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-07-10 19:00:34,947 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:00:34,947 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:00:34,948 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:00:34,948 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:00:34,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-07-10 19:00:34,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-07-10 19:00:34,953 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 26 [2020-07-10 19:00:34,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:00:34,954 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-07-10 19:00:34,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-10 19:00:34,954 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 33 states and 34 transitions. [2020-07-10 19:00:35,006 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:00:35,007 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-07-10 19:00:35,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-10 19:00:35,008 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:00:35,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 19:00:35,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 19:00:35,009 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 19:00:35,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:00:35,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1961589014, now seen corresponding path program 1 times [2020-07-10 19:00:35,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:00:35,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728002887] [2020-07-10 19:00:35,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:00:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:00:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:00:35,112 INFO L280 TraceCheckUtils]: 0: Hoare triple {342#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {325#true} is VALID [2020-07-10 19:00:35,113 INFO L280 TraceCheckUtils]: 1: Hoare triple {325#true} #valid := #valid[0 := 0]; {325#true} is VALID [2020-07-10 19:00:35,113 INFO L280 TraceCheckUtils]: 2: Hoare triple {325#true} assume 0 < #StackHeapBarrier; {325#true} is VALID [2020-07-10 19:00:35,113 INFO L280 TraceCheckUtils]: 3: Hoare triple {325#true} ~globalState~0 := 0; {325#true} is VALID [2020-07-10 19:00:35,114 INFO L280 TraceCheckUtils]: 4: Hoare triple {325#true} assume true; {325#true} is VALID [2020-07-10 19:00:35,114 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {325#true} {325#true} #58#return; {325#true} is VALID [2020-07-10 19:00:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:00:35,162 INFO L280 TraceCheckUtils]: 0: Hoare triple {343#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size; {325#true} is VALID [2020-07-10 19:00:35,163 INFO L280 TraceCheckUtils]: 1: Hoare triple {325#true} SUMMARY for call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size); srcloc: L1619 {325#true} is VALID [2020-07-10 19:00:35,163 INFO L280 TraceCheckUtils]: 2: Hoare triple {325#true} ~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {325#true} is VALID [2020-07-10 19:00:35,164 INFO L280 TraceCheckUtils]: 3: Hoare triple {325#true} assume ~retVal~0.base != 0 || ~retVal~0.offset != 0; {325#true} is VALID [2020-07-10 19:00:35,165 INFO L280 TraceCheckUtils]: 4: Hoare triple {325#true} ~globalState~0 := 1; {341#(= 1 ~globalState~0)} is VALID [2020-07-10 19:00:35,166 INFO L280 TraceCheckUtils]: 5: Hoare triple {341#(= 1 ~globalState~0)} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {341#(= 1 ~globalState~0)} is VALID [2020-07-10 19:00:35,167 INFO L280 TraceCheckUtils]: 6: Hoare triple {341#(= 1 ~globalState~0)} assume true; {341#(= 1 ~globalState~0)} is VALID [2020-07-10 19:00:35,168 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {341#(= 1 ~globalState~0)} {325#true} #50#return; {341#(= 1 ~globalState~0)} is VALID [2020-07-10 19:00:35,170 INFO L263 TraceCheckUtils]: 0: Hoare triple {325#true} call ULTIMATE.init(); {342#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:00:35,170 INFO L280 TraceCheckUtils]: 1: Hoare triple {342#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {325#true} is VALID [2020-07-10 19:00:35,171 INFO L280 TraceCheckUtils]: 2: Hoare triple {325#true} #valid := #valid[0 := 0]; {325#true} is VALID [2020-07-10 19:00:35,171 INFO L280 TraceCheckUtils]: 3: Hoare triple {325#true} assume 0 < #StackHeapBarrier; {325#true} is VALID [2020-07-10 19:00:35,175 INFO L280 TraceCheckUtils]: 4: Hoare triple {325#true} ~globalState~0 := 0; {325#true} is VALID [2020-07-10 19:00:35,176 INFO L280 TraceCheckUtils]: 5: Hoare triple {325#true} assume true; {325#true} is VALID [2020-07-10 19:00:35,176 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {325#true} {325#true} #58#return; {325#true} is VALID [2020-07-10 19:00:35,177 INFO L263 TraceCheckUtils]: 7: Hoare triple {325#true} call #t~ret32 := main(#in~argc, #in~argv.base, #in~argv.offset); {325#true} is VALID [2020-07-10 19:00:35,177 INFO L280 TraceCheckUtils]: 8: Hoare triple {325#true} ~argc := #in~argc; {325#true} is VALID [2020-07-10 19:00:35,177 INFO L280 TraceCheckUtils]: 9: Hoare triple {325#true} ~argv.base, ~argv.offset := #in~argv.base, #in~argv.offset; {325#true} is VALID [2020-07-10 19:00:35,179 INFO L263 TraceCheckUtils]: 10: Hoare triple {325#true} call #t~ret30.base, #t~ret30.offset := l_malloc(4); {343#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 19:00:35,179 INFO L280 TraceCheckUtils]: 11: Hoare triple {343#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size; {325#true} is VALID [2020-07-10 19:00:35,180 INFO L280 TraceCheckUtils]: 12: Hoare triple {325#true} SUMMARY for call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size); srcloc: L1619 {325#true} is VALID [2020-07-10 19:00:35,180 INFO L280 TraceCheckUtils]: 13: Hoare triple {325#true} ~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {325#true} is VALID [2020-07-10 19:00:35,180 INFO L280 TraceCheckUtils]: 14: Hoare triple {325#true} assume ~retVal~0.base != 0 || ~retVal~0.offset != 0; {325#true} is VALID [2020-07-10 19:00:35,182 INFO L280 TraceCheckUtils]: 15: Hoare triple {325#true} ~globalState~0 := 1; {341#(= 1 ~globalState~0)} is VALID [2020-07-10 19:00:35,183 INFO L280 TraceCheckUtils]: 16: Hoare triple {341#(= 1 ~globalState~0)} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {341#(= 1 ~globalState~0)} is VALID [2020-07-10 19:00:35,184 INFO L280 TraceCheckUtils]: 17: Hoare triple {341#(= 1 ~globalState~0)} assume true; {341#(= 1 ~globalState~0)} is VALID [2020-07-10 19:00:35,185 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {341#(= 1 ~globalState~0)} {325#true} #50#return; {341#(= 1 ~globalState~0)} is VALID [2020-07-10 19:00:35,187 INFO L280 TraceCheckUtils]: 19: Hoare triple {341#(= 1 ~globalState~0)} ~a~0.base, ~a~0.offset := #t~ret30.base, #t~ret30.offset; {341#(= 1 ~globalState~0)} is VALID [2020-07-10 19:00:35,188 INFO L280 TraceCheckUtils]: 20: Hoare triple {341#(= 1 ~globalState~0)} havoc #t~ret30.base, #t~ret30.offset; {341#(= 1 ~globalState~0)} is VALID [2020-07-10 19:00:35,189 INFO L263 TraceCheckUtils]: 21: Hoare triple {341#(= 1 ~globalState~0)} call l_free(~a~0.base, ~a~0.offset); {341#(= 1 ~globalState~0)} is VALID [2020-07-10 19:00:35,190 INFO L280 TraceCheckUtils]: 22: Hoare triple {341#(= 1 ~globalState~0)} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {341#(= 1 ~globalState~0)} is VALID [2020-07-10 19:00:35,191 INFO L280 TraceCheckUtils]: 23: Hoare triple {341#(= 1 ~globalState~0)} assume ~ptr.base != 0 || ~ptr.offset != 0; {341#(= 1 ~globalState~0)} is VALID [2020-07-10 19:00:35,192 INFO L280 TraceCheckUtils]: 24: Hoare triple {341#(= 1 ~globalState~0)} assume !(1 == ~globalState~0); {326#false} is VALID [2020-07-10 19:00:35,193 INFO L263 TraceCheckUtils]: 25: Hoare triple {326#false} call __blast_assert(); {326#false} is VALID [2020-07-10 19:00:35,193 INFO L280 TraceCheckUtils]: 26: Hoare triple {326#false} assume !false; {326#false} is VALID [2020-07-10 19:00:35,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:00:35,196 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:00:35,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728002887] [2020-07-10 19:00:35,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:00:35,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 19:00:35,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046708295] [2020-07-10 19:00:35,198 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-10 19:00:35,199 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:00:35,199 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 19:00:35,237 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:00:35,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 19:00:35,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:00:35,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 19:00:35,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 19:00:35,238 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 5 states. [2020-07-10 19:00:35,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:00:35,657 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2020-07-10 19:00:35,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 19:00:35,657 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-10 19:00:35,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:00:35,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 19:00:35,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2020-07-10 19:00:35,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 19:00:35,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2020-07-10 19:00:35,670 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 42 transitions. [2020-07-10 19:00:35,756 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:00:35,759 INFO L225 Difference]: With dead ends: 40 [2020-07-10 19:00:35,760 INFO L226 Difference]: Without dead ends: 36 [2020-07-10 19:00:35,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-10 19:00:35,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-07-10 19:00:35,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-07-10 19:00:35,837 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:00:35,837 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand 36 states. [2020-07-10 19:00:35,837 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2020-07-10 19:00:35,837 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2020-07-10 19:00:35,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:00:35,841 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-07-10 19:00:35,841 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-07-10 19:00:35,842 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:00:35,842 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:00:35,842 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2020-07-10 19:00:35,842 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2020-07-10 19:00:35,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:00:35,845 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-07-10 19:00:35,846 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-07-10 19:00:35,846 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:00:35,847 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:00:35,847 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:00:35,847 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:00:35,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-10 19:00:35,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-07-10 19:00:35,850 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 27 [2020-07-10 19:00:35,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:00:35,850 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-07-10 19:00:35,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 19:00:35,851 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 36 states and 37 transitions. [2020-07-10 19:00:35,917 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:00:35,917 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-07-10 19:00:35,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-10 19:00:35,919 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:00:35,920 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 19:00:35,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 19:00:35,920 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 19:00:35,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:00:35,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1381039993, now seen corresponding path program 1 times [2020-07-10 19:00:35,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:00:35,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746774402] [2020-07-10 19:00:35,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:00:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:00:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:00:36,066 INFO L280 TraceCheckUtils]: 0: Hoare triple {599#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {575#true} is VALID [2020-07-10 19:00:36,066 INFO L280 TraceCheckUtils]: 1: Hoare triple {575#true} #valid := #valid[0 := 0]; {575#true} is VALID [2020-07-10 19:00:36,067 INFO L280 TraceCheckUtils]: 2: Hoare triple {575#true} assume 0 < #StackHeapBarrier; {575#true} is VALID [2020-07-10 19:00:36,067 INFO L280 TraceCheckUtils]: 3: Hoare triple {575#true} ~globalState~0 := 0; {575#true} is VALID [2020-07-10 19:00:36,067 INFO L280 TraceCheckUtils]: 4: Hoare triple {575#true} assume true; {575#true} is VALID [2020-07-10 19:00:36,068 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {575#true} {575#true} #58#return; {575#true} is VALID [2020-07-10 19:00:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:00:36,203 INFO L280 TraceCheckUtils]: 0: Hoare triple {600#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size; {575#true} is VALID [2020-07-10 19:00:36,206 INFO L280 TraceCheckUtils]: 1: Hoare triple {575#true} SUMMARY for call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size); srcloc: L1619 {601#(or (<= (+ |l_malloc_#t~malloc31.base| 1) 0) (< 0 |l_malloc_#t~malloc31.base|))} is VALID [2020-07-10 19:00:36,207 INFO L280 TraceCheckUtils]: 2: Hoare triple {601#(or (<= (+ |l_malloc_#t~malloc31.base| 1) 0) (< 0 |l_malloc_#t~malloc31.base|))} ~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-10 19:00:36,207 INFO L280 TraceCheckUtils]: 3: Hoare triple {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} assume ~retVal~0.base != 0 || ~retVal~0.offset != 0; {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-10 19:00:36,208 INFO L280 TraceCheckUtils]: 4: Hoare triple {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} ~globalState~0 := 1; {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-10 19:00:36,210 INFO L280 TraceCheckUtils]: 5: Hoare triple {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} is VALID [2020-07-10 19:00:36,210 INFO L280 TraceCheckUtils]: 6: Hoare triple {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} assume true; {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} is VALID [2020-07-10 19:00:36,212 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} {575#true} #50#return; {591#(not (= 0 |main_#t~ret30.base|))} is VALID [2020-07-10 19:00:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:00:36,306 INFO L280 TraceCheckUtils]: 0: Hoare triple {604#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|))} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {605#(= |l_free_#in~ptr.base| l_free_~ptr.base)} is VALID [2020-07-10 19:00:36,307 INFO L280 TraceCheckUtils]: 1: Hoare triple {605#(= |l_free_#in~ptr.base| l_free_~ptr.base)} assume !(~ptr.base != 0 || ~ptr.offset != 0); {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-10 19:00:36,308 INFO L280 TraceCheckUtils]: 2: Hoare triple {606#(= 0 |l_free_#in~ptr.base|)} ~globalState~0 := 0; {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-10 19:00:36,309 INFO L280 TraceCheckUtils]: 3: Hoare triple {606#(= 0 |l_free_#in~ptr.base|)} SUMMARY for call ULTIMATE.dealloc(~ptr.base, ~ptr.offset); srcloc: L1631 {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-10 19:00:36,310 INFO L280 TraceCheckUtils]: 4: Hoare triple {606#(= 0 |l_free_#in~ptr.base|)} assume true; {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-10 19:00:36,311 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {606#(= 0 |l_free_#in~ptr.base|)} {592#(not (= 0 main_~a~0.base))} #52#return; {576#false} is VALID [2020-07-10 19:00:36,313 INFO L263 TraceCheckUtils]: 0: Hoare triple {575#true} call ULTIMATE.init(); {599#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:00:36,313 INFO L280 TraceCheckUtils]: 1: Hoare triple {599#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {575#true} is VALID [2020-07-10 19:00:36,313 INFO L280 TraceCheckUtils]: 2: Hoare triple {575#true} #valid := #valid[0 := 0]; {575#true} is VALID [2020-07-10 19:00:36,313 INFO L280 TraceCheckUtils]: 3: Hoare triple {575#true} assume 0 < #StackHeapBarrier; {575#true} is VALID [2020-07-10 19:00:36,314 INFO L280 TraceCheckUtils]: 4: Hoare triple {575#true} ~globalState~0 := 0; {575#true} is VALID [2020-07-10 19:00:36,314 INFO L280 TraceCheckUtils]: 5: Hoare triple {575#true} assume true; {575#true} is VALID [2020-07-10 19:00:36,314 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {575#true} {575#true} #58#return; {575#true} is VALID [2020-07-10 19:00:36,315 INFO L263 TraceCheckUtils]: 7: Hoare triple {575#true} call #t~ret32 := main(#in~argc, #in~argv.base, #in~argv.offset); {575#true} is VALID [2020-07-10 19:00:36,315 INFO L280 TraceCheckUtils]: 8: Hoare triple {575#true} ~argc := #in~argc; {575#true} is VALID [2020-07-10 19:00:36,315 INFO L280 TraceCheckUtils]: 9: Hoare triple {575#true} ~argv.base, ~argv.offset := #in~argv.base, #in~argv.offset; {575#true} is VALID [2020-07-10 19:00:36,323 INFO L263 TraceCheckUtils]: 10: Hoare triple {575#true} call #t~ret30.base, #t~ret30.offset := l_malloc(4); {600#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 19:00:36,323 INFO L280 TraceCheckUtils]: 11: Hoare triple {600#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|) (= |old(#length)| |#length|))} ~size := #in~size; {575#true} is VALID [2020-07-10 19:00:36,324 INFO L280 TraceCheckUtils]: 12: Hoare triple {575#true} SUMMARY for call #t~malloc31.base, #t~malloc31.offset := #Ultimate.allocOnHeap(~size); srcloc: L1619 {601#(or (<= (+ |l_malloc_#t~malloc31.base| 1) 0) (< 0 |l_malloc_#t~malloc31.base|))} is VALID [2020-07-10 19:00:36,327 INFO L280 TraceCheckUtils]: 13: Hoare triple {601#(or (<= (+ |l_malloc_#t~malloc31.base| 1) 0) (< 0 |l_malloc_#t~malloc31.base|))} ~retVal~0.base, ~retVal~0.offset := #t~malloc31.base, #t~malloc31.offset; {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-10 19:00:36,328 INFO L280 TraceCheckUtils]: 14: Hoare triple {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} assume ~retVal~0.base != 0 || ~retVal~0.offset != 0; {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-10 19:00:36,329 INFO L280 TraceCheckUtils]: 15: Hoare triple {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} ~globalState~0 := 1; {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} is VALID [2020-07-10 19:00:36,330 INFO L280 TraceCheckUtils]: 16: Hoare triple {602#(or (<= 1 l_malloc_~retVal~0.base) (<= (+ l_malloc_~retVal~0.base 1) 0))} #res.base, #res.offset := ~retVal~0.base, ~retVal~0.offset; {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} is VALID [2020-07-10 19:00:36,331 INFO L280 TraceCheckUtils]: 17: Hoare triple {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} assume true; {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} is VALID [2020-07-10 19:00:36,332 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {603#(or (<= 1 |l_malloc_#res.base|) (<= (+ |l_malloc_#res.base| 1) 0))} {575#true} #50#return; {591#(not (= 0 |main_#t~ret30.base|))} is VALID [2020-07-10 19:00:36,333 INFO L280 TraceCheckUtils]: 19: Hoare triple {591#(not (= 0 |main_#t~ret30.base|))} ~a~0.base, ~a~0.offset := #t~ret30.base, #t~ret30.offset; {592#(not (= 0 main_~a~0.base))} is VALID [2020-07-10 19:00:36,334 INFO L280 TraceCheckUtils]: 20: Hoare triple {592#(not (= 0 main_~a~0.base))} havoc #t~ret30.base, #t~ret30.offset; {592#(not (= 0 main_~a~0.base))} is VALID [2020-07-10 19:00:36,349 INFO L263 TraceCheckUtils]: 21: Hoare triple {592#(not (= 0 main_~a~0.base))} call l_free(~a~0.base, ~a~0.offset); {604#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|))} is VALID [2020-07-10 19:00:36,351 INFO L280 TraceCheckUtils]: 22: Hoare triple {604#(and (= |#valid| |old(#valid)|) (= ~globalState~0 |old(~globalState~0)|))} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {605#(= |l_free_#in~ptr.base| l_free_~ptr.base)} is VALID [2020-07-10 19:00:36,352 INFO L280 TraceCheckUtils]: 23: Hoare triple {605#(= |l_free_#in~ptr.base| l_free_~ptr.base)} assume !(~ptr.base != 0 || ~ptr.offset != 0); {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-10 19:00:36,352 INFO L280 TraceCheckUtils]: 24: Hoare triple {606#(= 0 |l_free_#in~ptr.base|)} ~globalState~0 := 0; {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-10 19:00:36,353 INFO L280 TraceCheckUtils]: 25: Hoare triple {606#(= 0 |l_free_#in~ptr.base|)} SUMMARY for call ULTIMATE.dealloc(~ptr.base, ~ptr.offset); srcloc: L1631 {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-10 19:00:36,354 INFO L280 TraceCheckUtils]: 26: Hoare triple {606#(= 0 |l_free_#in~ptr.base|)} assume true; {606#(= 0 |l_free_#in~ptr.base|)} is VALID [2020-07-10 19:00:36,355 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {606#(= 0 |l_free_#in~ptr.base|)} {592#(not (= 0 main_~a~0.base))} #52#return; {576#false} is VALID [2020-07-10 19:00:36,355 INFO L263 TraceCheckUtils]: 28: Hoare triple {576#false} call l_free(~a~0.base, ~a~0.offset); {576#false} is VALID [2020-07-10 19:00:36,355 INFO L280 TraceCheckUtils]: 29: Hoare triple {576#false} ~ptr.base, ~ptr.offset := #in~ptr.base, #in~ptr.offset; {576#false} is VALID [2020-07-10 19:00:36,355 INFO L280 TraceCheckUtils]: 30: Hoare triple {576#false} assume ~ptr.base != 0 || ~ptr.offset != 0; {576#false} is VALID [2020-07-10 19:00:36,356 INFO L280 TraceCheckUtils]: 31: Hoare triple {576#false} assume !(1 == ~globalState~0); {576#false} is VALID [2020-07-10 19:00:36,356 INFO L263 TraceCheckUtils]: 32: Hoare triple {576#false} call __blast_assert(); {576#false} is VALID [2020-07-10 19:00:36,356 INFO L280 TraceCheckUtils]: 33: Hoare triple {576#false} assume !false; {576#false} is VALID [2020-07-10 19:00:36,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:00:36,359 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:00:36,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [746774402] [2020-07-10 19:00:36,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:00:36,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-10 19:00:36,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456511759] [2020-07-10 19:00:36,361 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34 [2020-07-10 19:00:36,361 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:00:36,362 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2020-07-10 19:00:36,420 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:00:36,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-10 19:00:36,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:00:36,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-10 19:00:36,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-10 19:00:36,422 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 12 states. [2020-07-10 19:00:37,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:00:37,488 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2020-07-10 19:00:37,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-10 19:00:37,489 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34 [2020-07-10 19:00:37,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:00:37,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-10 19:00:37,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 48 transitions. [2020-07-10 19:00:37,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-10 19:00:37,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 48 transitions. [2020-07-10 19:00:37,502 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 48 transitions. [2020-07-10 19:00:37,567 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:00:37,569 INFO L225 Difference]: With dead ends: 51 [2020-07-10 19:00:37,570 INFO L226 Difference]: Without dead ends: 36 [2020-07-10 19:00:37,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2020-07-10 19:00:37,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-07-10 19:00:37,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-07-10 19:00:37,658 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:00:37,658 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand 36 states. [2020-07-10 19:00:37,658 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2020-07-10 19:00:37,659 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2020-07-10 19:00:37,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:00:37,661 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2020-07-10 19:00:37,662 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2020-07-10 19:00:37,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:00:37,662 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:00:37,663 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2020-07-10 19:00:37,663 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2020-07-10 19:00:37,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:00:37,665 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2020-07-10 19:00:37,665 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2020-07-10 19:00:37,666 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:00:37,666 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:00:37,666 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:00:37,667 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:00:37,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-10 19:00:37,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2020-07-10 19:00:37,669 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 34 [2020-07-10 19:00:37,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:00:37,669 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2020-07-10 19:00:37,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-10 19:00:37,670 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 36 states and 36 transitions. [2020-07-10 19:00:37,730 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:00:37,730 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2020-07-10 19:00:37,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-10 19:00:37,732 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:00:37,732 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 19:00:37,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-10 19:00:37,732 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 19:00:37,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:00:37,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1342711683, now seen corresponding path program 1 times [2020-07-10 19:00:37,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:00:37,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1986326058] [2020-07-10 19:00:37,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:00:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 19:00:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 19:00:37,832 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:00:37,833 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-10 19:00:37,833 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 19:00:37,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-10 19:00:37,854 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 19:00:37,854 WARN L170 areAnnotationChecker]: l_mallocENTRY has no Hoare annotation [2020-07-10 19:00:37,854 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 19:00:37,854 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 19:00:37,854 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-10 19:00:37,854 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-10 19:00:37,854 WARN L170 areAnnotationChecker]: l_freeENTRY has no Hoare annotation [2020-07-10 19:00:37,855 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 19:00:37,855 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:00:37,855 WARN L170 areAnnotationChecker]: L1619 has no Hoare annotation [2020-07-10 19:00:37,855 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:00:37,855 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:00:37,855 WARN L170 areAnnotationChecker]: __blast_assertFINAL has no Hoare annotation [2020-07-10 19:00:37,855 WARN L170 areAnnotationChecker]: L1629 has no Hoare annotation [2020-07-10 19:00:37,855 WARN L170 areAnnotationChecker]: L1629 has no Hoare annotation [2020-07-10 19:00:37,855 WARN L170 areAnnotationChecker]: L1610 has no Hoare annotation [2020-07-10 19:00:37,856 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-10 19:00:37,856 WARN L170 areAnnotationChecker]: L1619-1 has no Hoare annotation [2020-07-10 19:00:37,856 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 19:00:37,856 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2020-07-10 19:00:37,856 WARN L170 areAnnotationChecker]: L1629-1 has no Hoare annotation [2020-07-10 19:00:37,856 WARN L170 areAnnotationChecker]: L1629-1 has no Hoare annotation [2020-07-10 19:00:37,856 WARN L170 areAnnotationChecker]: L1629-5 has no Hoare annotation [2020-07-10 19:00:37,856 WARN L170 areAnnotationChecker]: L1612 has no Hoare annotation [2020-07-10 19:00:37,856 WARN L170 areAnnotationChecker]: L1612 has no Hoare annotation [2020-07-10 19:00:37,856 WARN L170 areAnnotationChecker]: L1606 has no Hoare annotation [2020-07-10 19:00:37,857 WARN L170 areAnnotationChecker]: L1620 has no Hoare annotation [2020-07-10 19:00:37,857 WARN L170 areAnnotationChecker]: L1620 has no Hoare annotation [2020-07-10 19:00:37,857 WARN L170 areAnnotationChecker]: L1629-3 has no Hoare annotation [2020-07-10 19:00:37,857 WARN L170 areAnnotationChecker]: L1629-3 has no Hoare annotation [2020-07-10 19:00:37,857 WARN L170 areAnnotationChecker]: L1631 has no Hoare annotation [2020-07-10 19:00:37,857 WARN L170 areAnnotationChecker]: L1612-1 has no Hoare annotation [2020-07-10 19:00:37,857 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 19:00:37,857 WARN L170 areAnnotationChecker]: L1621 has no Hoare annotation [2020-07-10 19:00:37,857 WARN L170 areAnnotationChecker]: L1620-2 has no Hoare annotation [2020-07-10 19:00:37,857 WARN L170 areAnnotationChecker]: l_freeFINAL has no Hoare annotation [2020-07-10 19:00:37,857 WARN L170 areAnnotationChecker]: L1612-2 has no Hoare annotation [2020-07-10 19:00:37,857 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 19:00:37,857 WARN L170 areAnnotationChecker]: l_mallocFINAL has no Hoare annotation [2020-07-10 19:00:37,857 WARN L170 areAnnotationChecker]: l_freeEXIT has no Hoare annotation [2020-07-10 19:00:37,858 WARN L170 areAnnotationChecker]: l_freeEXIT has no Hoare annotation [2020-07-10 19:00:37,858 WARN L170 areAnnotationChecker]: L1613 has no Hoare annotation [2020-07-10 19:00:37,858 WARN L170 areAnnotationChecker]: L1613 has no Hoare annotation [2020-07-10 19:00:37,858 WARN L170 areAnnotationChecker]: l_mallocEXIT has no Hoare annotation [2020-07-10 19:00:37,858 WARN L170 areAnnotationChecker]: L1613-1 has no Hoare annotation [2020-07-10 19:00:37,858 WARN L170 areAnnotationChecker]: L1613-1 has no Hoare annotation [2020-07-10 19:00:37,858 WARN L170 areAnnotationChecker]: L1614 has no Hoare annotation [2020-07-10 19:00:37,858 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 19:00:37,858 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 19:00:37,858 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 19:00:37,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 07:00:37 BoogieIcfgContainer [2020-07-10 19:00:37,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 19:00:37,865 INFO L168 Benchmark]: Toolchain (without parser) took 6390.30 ms. Allocated memory was 136.3 MB in the beginning and 311.4 MB in the end (delta: 175.1 MB). Free memory was 99.5 MB in the beginning and 203.7 MB in the end (delta: -104.2 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. [2020-07-10 19:00:37,866 INFO L168 Benchmark]: CDTParser took 1.18 ms. Allocated memory is still 136.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 19:00:37,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 816.61 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 99.3 MB in the beginning and 150.7 MB in the end (delta: -51.5 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2020-07-10 19:00:37,868 INFO L168 Benchmark]: Boogie Preprocessor took 130.47 ms. Allocated memory is still 201.3 MB. Free memory was 150.0 MB in the beginning and 146.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-07-10 19:00:37,869 INFO L168 Benchmark]: RCFGBuilder took 873.01 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 146.4 MB in the beginning and 200.4 MB in the end (delta: -54.1 MB). Peak memory consumption was 68.6 MB. Max. memory is 7.1 GB. [2020-07-10 19:00:37,870 INFO L168 Benchmark]: TraceAbstraction took 4562.48 ms. Allocated memory was 230.2 MB in the beginning and 311.4 MB in the end (delta: 81.3 MB). Free memory was 200.4 MB in the beginning and 203.7 MB in the end (delta: -3.3 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. [2020-07-10 19:00:37,874 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 1.18 ms. Allocated memory is still 136.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 816.61 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 99.3 MB in the beginning and 150.7 MB in the end (delta: -51.5 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.47 ms. Allocated memory is still 201.3 MB. Free memory was 150.0 MB in the beginning and 146.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 873.01 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 146.4 MB in the beginning and 200.4 MB in the end (delta: -54.1 MB). Peak memory consumption was 68.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4562.48 ms. Allocated memory was 230.2 MB in the beginning and 311.4 MB in the end (delta: 81.3 MB). Free memory was 200.4 MB in the beginning and 203.7 MB in the end (delta: -3.3 MB). Peak memory consumption was 78.0 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; [L1612] CALL, EXPR l_malloc(sizeof(int)) [L1619] void *retVal = malloc(size); [L1620] COND TRUE retVal != ((void *)0) [L1621] globalState=1 [L1622] return retVal; [L1612] RET, EXPR l_malloc(sizeof(int)) [L1612] int *a = (int*) l_malloc(sizeof(int)); [L1613] CALL l_free(a) [L1629] COND TRUE ptr!=((void *)0) [L1629] (globalState == 1) ? (0) : __blast_assert () [L1630] globalState = 0 [L1613] RET l_free(a) [L1614] CALL l_free(a) [L1629] COND TRUE ptr!=((void *)0) [L1629] (globalState == 1) ? (0) : __blast_assert () [L1629] CALL __blast_assert () [L1601] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 84 SDtfs, 94 SDslu, 186 SDs, 0 SdLazy, 280 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...