/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 05:46:31,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 05:46:31,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 05:46:31,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 05:46:31,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 05:46:31,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 05:46:31,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 05:46:31,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 05:46:31,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 05:46:31,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 05:46:31,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 05:46:31,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 05:46:31,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 05:46:31,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 05:46:31,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 05:46:31,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 05:46:31,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 05:46:31,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 05:46:31,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 05:46:31,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 05:46:31,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 05:46:31,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 05:46:31,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 05:46:31,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 05:46:31,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 05:46:31,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 05:46:31,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 05:46:31,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 05:46:31,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 05:46:31,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 05:46:31,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 05:46:31,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 05:46:31,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 05:46:31,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 05:46:31,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 05:46:31,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 05:46:31,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 05:46:31,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 05:46:31,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 05:46:31,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 05:46:31,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 05:46:31,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 05:46:31,291 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 05:46:31,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 05:46:31,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 05:46:31,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 05:46:31,293 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 05:46:31,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 05:46:31,293 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 05:46:31,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 05:46:31,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 05:46:31,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 05:46:31,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 05:46:31,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 05:46:31,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 05:46:31,295 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 05:46:31,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 05:46:31,295 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 05:46:31,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 05:46:31,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 05:46:31,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 05:46:31,296 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 05:46:31,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 05:46:31,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 05:46:31,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 05:46:31,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 05:46:31,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 05:46:31,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 05:46:31,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 05:46:31,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 05:46:31,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 05:46:31,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 05:46:31,597 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 05:46:31,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 05:46:31,620 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 05:46:31,622 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 05:46:31,622 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 05:46:31,623 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-07-20 05:46:31,701 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49301a690/5cc6f25e0ecf45038df5c22dd3fd5796/FLAGa913889d4 [2020-07-20 05:46:32,275 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 05:46:32,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-07-20 05:46:32,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49301a690/5cc6f25e0ecf45038df5c22dd3fd5796/FLAGa913889d4 [2020-07-20 05:46:32,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49301a690/5cc6f25e0ecf45038df5c22dd3fd5796 [2020-07-20 05:46:32,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 05:46:32,576 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 05:46:32,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 05:46:32,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 05:46:32,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 05:46:32,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:46:32" (1/1) ... [2020-07-20 05:46:32,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da63194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:46:32, skipping insertion in model container [2020-07-20 05:46:32,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:46:32" (1/1) ... [2020-07-20 05:46:32,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 05:46:32,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 05:46:32,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 05:46:32,960 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 05:46:33,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 05:46:33,188 INFO L208 MainTranslator]: Completed translation [2020-07-20 05:46:33,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:46:33 WrapperNode [2020-07-20 05:46:33,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 05:46:33,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 05:46:33,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 05:46:33,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 05:46:33,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:46:33" (1/1) ... [2020-07-20 05:46:33,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:46:33" (1/1) ... [2020-07-20 05:46:33,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:46:33" (1/1) ... [2020-07-20 05:46:33,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:46:33" (1/1) ... [2020-07-20 05:46:33,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:46:33" (1/1) ... [2020-07-20 05:46:33,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:46:33" (1/1) ... [2020-07-20 05:46:33,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:46:33" (1/1) ... [2020-07-20 05:46:33,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 05:46:33,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 05:46:33,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 05:46:33,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 05:46:33,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:46:33" (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 [2020-07-20 05:46:33,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 05:46:33,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 05:46:33,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-20 05:46:33,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-07-20 05:46:33,332 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-07-20 05:46:33,333 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-07-20 05:46:33,333 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-07-20 05:46:33,333 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 05:46:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 05:46:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-20 05:46:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-07-20 05:46:33,334 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-07-20 05:46:33,334 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-07-20 05:46:33,334 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-07-20 05:46:33,334 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-07-20 05:46:33,334 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-07-20 05:46:33,335 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-07-20 05:46:33,335 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-07-20 05:46:33,335 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-07-20 05:46:33,335 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-07-20 05:46:33,335 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-07-20 05:46:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-07-20 05:46:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-07-20 05:46:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-07-20 05:46:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-07-20 05:46:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-07-20 05:46:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-07-20 05:46:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-07-20 05:46:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-07-20 05:46:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-07-20 05:46:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-07-20 05:46:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-07-20 05:46:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-07-20 05:46:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-07-20 05:46:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-07-20 05:46:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-07-20 05:46:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-07-20 05:46:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-07-20 05:46:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-07-20 05:46:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-07-20 05:46:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-07-20 05:46:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-07-20 05:46:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-07-20 05:46:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-07-20 05:46:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-07-20 05:46:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-07-20 05:46:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-07-20 05:46:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-07-20 05:46:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 05:46:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-07-20 05:46:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-07-20 05:46:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-07-20 05:46:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-07-20 05:46:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-07-20 05:46:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-07-20 05:46:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-07-20 05:46:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-07-20 05:46:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-07-20 05:46:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-07-20 05:46:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-07-20 05:46:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-07-20 05:46:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-07-20 05:46:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-07-20 05:46:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-07-20 05:46:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-07-20 05:46:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-07-20 05:46:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-07-20 05:46:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-07-20 05:46:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-07-20 05:46:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-07-20 05:46:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-07-20 05:46:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-07-20 05:46:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-07-20 05:46:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-07-20 05:46:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-07-20 05:46:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-07-20 05:46:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-07-20 05:46:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-07-20 05:46:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-07-20 05:46:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-07-20 05:46:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-07-20 05:46:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-07-20 05:46:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-07-20 05:46:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-07-20 05:46:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-07-20 05:46:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-07-20 05:46:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-07-20 05:46:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-07-20 05:46:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-07-20 05:46:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-07-20 05:46:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-07-20 05:46:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-07-20 05:46:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-07-20 05:46:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-07-20 05:46:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-07-20 05:46:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-07-20 05:46:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-07-20 05:46:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-07-20 05:46:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-07-20 05:46:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-07-20 05:46:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-07-20 05:46:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-07-20 05:46:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-07-20 05:46:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-07-20 05:46:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-07-20 05:46:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-07-20 05:46:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-07-20 05:46:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-07-20 05:46:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-07-20 05:46:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-07-20 05:46:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-07-20 05:46:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 05:46:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-20 05:46:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-20 05:46:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 05:46:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-20 05:46:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-07-20 05:46:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-20 05:46:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-07-20 05:46:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-07-20 05:46:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-07-20 05:46:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-07-20 05:46:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-07-20 05:46:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-07-20 05:46:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-07-20 05:46:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-07-20 05:46:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-07-20 05:46:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-07-20 05:46:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-07-20 05:46:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 05:46:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-07-20 05:46:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-07-20 05:46:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-07-20 05:46:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-07-20 05:46:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 05:46:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 05:46:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 05:46:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-20 05:46:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 05:46:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 05:46:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 05:46:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 05:46:33,928 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 05:46:33,929 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 05:46:33,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:46:33 BoogieIcfgContainer [2020-07-20 05:46:33,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 05:46:33,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 05:46:33,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 05:46:33,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 05:46:33,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:46:32" (1/3) ... [2020-07-20 05:46:33,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dfb2406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:46:33, skipping insertion in model container [2020-07-20 05:46:33,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:46:33" (2/3) ... [2020-07-20 05:46:33,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dfb2406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:46:33, skipping insertion in model container [2020-07-20 05:46:33,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:46:33" (3/3) ... [2020-07-20 05:46:33,947 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-07-20 05:46:33,959 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 05:46:33,966 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 05:46:33,981 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 05:46:34,011 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 05:46:34,011 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 05:46:34,011 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 05:46:34,011 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 05:46:34,012 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 05:46:34,012 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 05:46:34,012 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 05:46:34,012 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 05:46:34,038 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-07-20 05:46:34,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-20 05:46:34,045 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:46:34,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:46:34,047 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:46:34,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:46:34,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1135050545, now seen corresponding path program 1 times [2020-07-20 05:46:34,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:46:34,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380251880] [2020-07-20 05:46:34,065 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a03fe1b [2020-07-20 05:46:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:34,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 05:46:34,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380251880] [2020-07-20 05:46:34,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 05:46:34,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 05:46:34,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281134982] [2020-07-20 05:46:34,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 05:46:34,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:46:34,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 05:46:34,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-20 05:46:34,398 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 7 states. [2020-07-20 05:46:34,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:46:34,838 INFO L93 Difference]: Finished difference Result 88 states and 113 transitions. [2020-07-20 05:46:34,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 05:46:34,840 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-07-20 05:46:34,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:46:34,852 INFO L225 Difference]: With dead ends: 88 [2020-07-20 05:46:34,852 INFO L226 Difference]: Without dead ends: 43 [2020-07-20 05:46:34,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-07-20 05:46:34,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-07-20 05:46:34,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2020-07-20 05:46:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-20 05:46:34,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2020-07-20 05:46:34,909 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 13 [2020-07-20 05:46:34,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:46:34,910 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2020-07-20 05:46:34,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 05:46:34,910 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2020-07-20 05:46:34,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-20 05:46:34,913 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:46:34,913 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:46:34,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 05:46:34,914 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:46:34,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:46:34,914 INFO L82 PathProgramCache]: Analyzing trace with hash -925661111, now seen corresponding path program 1 times [2020-07-20 05:46:34,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:46:34,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877542368] [2020-07-20 05:46:34,915 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a03fe1b [2020-07-20 05:46:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:35,189 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-20 05:46:35,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877542368] [2020-07-20 05:46:35,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809794335] [2020-07-20 05:46:35,196 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2fa689e1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:46:35,396 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2fa689e1 issued 2 check-sat command(s) [2020-07-20 05:46:35,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:46:35,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 33 conjunts are in the unsatisfiable core [2020-07-20 05:46:35,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:46:35,557 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-20 05:46:35,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 05:46:35,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 13 [2020-07-20 05:46:35,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924983461] [2020-07-20 05:46:35,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 05:46:35,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:46:35,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 05:46:35,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-07-20 05:46:35,564 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 13 states. [2020-07-20 05:46:35,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:46:35,847 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2020-07-20 05:46:35,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 05:46:35,848 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2020-07-20 05:46:35,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:46:35,850 INFO L225 Difference]: With dead ends: 70 [2020-07-20 05:46:35,850 INFO L226 Difference]: Without dead ends: 48 [2020-07-20 05:46:35,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-07-20 05:46:35,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-20 05:46:35,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-07-20 05:46:35,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-07-20 05:46:35,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-07-20 05:46:35,863 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 38 [2020-07-20 05:46:35,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:46:35,864 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-07-20 05:46:35,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 05:46:35,864 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-07-20 05:46:35,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-20 05:46:35,865 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:46:35,865 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:46:36,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-20 05:46:36,080 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:46:36,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:46:36,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1188044311, now seen corresponding path program 1 times [2020-07-20 05:46:36,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:46:36,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770327174] [2020-07-20 05:46:36,082 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a03fe1b [2020-07-20 05:46:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:36,456 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-20 05:46:36,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770327174] [2020-07-20 05:46:36,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524907548] [2020-07-20 05:46:36,457 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2f9fe3db No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:46:36,570 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2f9fe3db issued 3 check-sat command(s) [2020-07-20 05:46:36,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:46:36,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 33 conjunts are in the unsatisfiable core [2020-07-20 05:46:36,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:46:36,693 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 05:46:36,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 05:46:36,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 19 [2020-07-20 05:46:36,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699457582] [2020-07-20 05:46:36,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 05:46:36,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:46:36,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 05:46:36,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-07-20 05:46:36,695 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 6 states. [2020-07-20 05:46:36,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:46:36,868 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2020-07-20 05:46:36,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 05:46:36,869 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-20 05:46:36,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:46:36,872 INFO L225 Difference]: With dead ends: 70 [2020-07-20 05:46:36,872 INFO L226 Difference]: Without dead ends: 61 [2020-07-20 05:46:36,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2020-07-20 05:46:36,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-07-20 05:46:36,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58. [2020-07-20 05:46:36,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-20 05:46:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2020-07-20 05:46:36,901 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 38 [2020-07-20 05:46:36,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:46:36,902 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2020-07-20 05:46:36,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 05:46:36,902 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2020-07-20 05:46:36,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-20 05:46:36,906 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:46:36,906 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:46:37,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:46:37,122 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:46:37,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:46:37,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1335597358, now seen corresponding path program 1 times [2020-07-20 05:46:37,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:46:37,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379060078] [2020-07-20 05:46:37,124 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a03fe1b [2020-07-20 05:46:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:37,486 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-20 05:46:37,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379060078] [2020-07-20 05:46:37,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343240609] [2020-07-20 05:46:37,486 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4bbe63b2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:46:37,611 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4bbe63b2 issued 4 check-sat command(s) [2020-07-20 05:46:37,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:46:37,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 05:46:37,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:46:37,845 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 05:46:37,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 05:46:37,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 29 [2020-07-20 05:46:37,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693227169] [2020-07-20 05:46:37,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-07-20 05:46:37,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:46:37,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-07-20 05:46:37,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2020-07-20 05:46:37,848 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand 29 states. [2020-07-20 05:46:39,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:46:39,245 INFO L93 Difference]: Finished difference Result 79 states and 96 transitions. [2020-07-20 05:46:39,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-20 05:46:39,245 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 45 [2020-07-20 05:46:39,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:46:39,247 INFO L225 Difference]: With dead ends: 79 [2020-07-20 05:46:39,247 INFO L226 Difference]: Without dead ends: 76 [2020-07-20 05:46:39,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=220, Invalid=1760, Unknown=0, NotChecked=0, Total=1980 [2020-07-20 05:46:39,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-20 05:46:39,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2020-07-20 05:46:39,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-07-20 05:46:39,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2020-07-20 05:46:39,263 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 82 transitions. Word has length 45 [2020-07-20 05:46:39,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:46:39,263 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 82 transitions. [2020-07-20 05:46:39,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-07-20 05:46:39,264 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2020-07-20 05:46:39,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-20 05:46:39,265 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:46:39,265 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:46:39,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:46:39,471 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:46:39,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:46:39,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1744421583, now seen corresponding path program 1 times [2020-07-20 05:46:39,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:46:39,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756405064] [2020-07-20 05:46:39,473 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a03fe1b [2020-07-20 05:46:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:39,896 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-20 05:46:39,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756405064] [2020-07-20 05:46:39,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70908961] [2020-07-20 05:46:39,897 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@76e72658 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:46:40,006 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@76e72658 issued 2 check-sat command(s) [2020-07-20 05:46:40,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:46:40,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 53 conjunts are in the unsatisfiable core [2020-07-20 05:46:40,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:46:40,436 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-20 05:46:40,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 05:46:40,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 13] total 34 [2020-07-20 05:46:40,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57454229] [2020-07-20 05:46:40,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-07-20 05:46:40,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:46:40,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-07-20 05:46:40,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2020-07-20 05:46:40,438 INFO L87 Difference]: Start difference. First operand 70 states and 82 transitions. Second operand 34 states. [2020-07-20 05:46:41,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:46:41,768 INFO L93 Difference]: Finished difference Result 101 states and 115 transitions. [2020-07-20 05:46:41,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-20 05:46:41,769 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 45 [2020-07-20 05:46:41,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:46:41,770 INFO L225 Difference]: With dead ends: 101 [2020-07-20 05:46:41,770 INFO L226 Difference]: Without dead ends: 57 [2020-07-20 05:46:41,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=220, Invalid=2330, Unknown=0, NotChecked=0, Total=2550 [2020-07-20 05:46:41,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-07-20 05:46:41,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-07-20 05:46:41,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-07-20 05:46:41,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2020-07-20 05:46:41,782 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 45 [2020-07-20 05:46:41,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:46:41,783 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2020-07-20 05:46:41,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-07-20 05:46:41,783 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2020-07-20 05:46:41,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-20 05:46:41,784 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:46:41,784 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:46:41,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:46:41,994 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:46:41,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:46:41,995 INFO L82 PathProgramCache]: Analyzing trace with hash 526250732, now seen corresponding path program 1 times [2020-07-20 05:46:41,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:46:41,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359522585] [2020-07-20 05:46:41,996 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a03fe1b [2020-07-20 05:46:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:42,301 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-20 05:46:42,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359522585] [2020-07-20 05:46:42,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450798535] [2020-07-20 05:46:42,304 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@124b9569 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:46:42,461 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@124b9569 issued 3 check-sat command(s) [2020-07-20 05:46:42,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:46:42,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 05:46:42,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:46:42,822 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 05:46:42,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 05:46:42,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 28 [2020-07-20 05:46:42,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446579399] [2020-07-20 05:46:42,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-07-20 05:46:42,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:46:42,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-07-20 05:46:42,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2020-07-20 05:46:42,824 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand 28 states. [2020-07-20 05:46:43,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:46:43,799 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2020-07-20 05:46:43,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-20 05:46:43,800 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 45 [2020-07-20 05:46:43,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:46:43,802 INFO L225 Difference]: With dead ends: 67 [2020-07-20 05:46:43,802 INFO L226 Difference]: Without dead ends: 62 [2020-07-20 05:46:43,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=244, Invalid=1238, Unknown=0, NotChecked=0, Total=1482 [2020-07-20 05:46:43,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-07-20 05:46:43,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2020-07-20 05:46:43,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-07-20 05:46:43,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2020-07-20 05:46:43,813 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 45 [2020-07-20 05:46:43,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:46:43,814 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-07-20 05:46:43,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-07-20 05:46:43,814 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2020-07-20 05:46:43,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 05:46:43,816 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:46:43,816 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:46:44,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-20 05:46:44,030 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:46:44,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:46:44,031 INFO L82 PathProgramCache]: Analyzing trace with hash -2119488644, now seen corresponding path program 1 times [2020-07-20 05:46:44,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:46:44,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348875844] [2020-07-20 05:46:44,033 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a03fe1b [2020-07-20 05:46:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:44,484 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 05:46:44,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348875844] [2020-07-20 05:46:44,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001274929] [2020-07-20 05:46:44,486 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7dbf5b4d No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:46:44,686 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7dbf5b4d issued 2 check-sat command(s) [2020-07-20 05:46:44,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:46:44,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 45 conjunts are in the unsatisfiable core [2020-07-20 05:46:44,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:46:45,018 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 05:46:45,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 05:46:45,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 11] total 30 [2020-07-20 05:46:45,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273382638] [2020-07-20 05:46:45,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-07-20 05:46:45,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:46:45,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-07-20 05:46:45,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=803, Unknown=0, NotChecked=0, Total=870 [2020-07-20 05:46:45,021 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 30 states. [2020-07-20 05:46:46,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:46:46,580 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2020-07-20 05:46:46,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-20 05:46:46,580 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 57 [2020-07-20 05:46:46,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:46:46,582 INFO L225 Difference]: With dead ends: 70 [2020-07-20 05:46:46,582 INFO L226 Difference]: Without dead ends: 62 [2020-07-20 05:46:46,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=238, Invalid=2312, Unknown=0, NotChecked=0, Total=2550 [2020-07-20 05:46:46,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-07-20 05:46:46,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2020-07-20 05:46:46,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-07-20 05:46:46,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2020-07-20 05:46:46,594 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 57 [2020-07-20 05:46:46,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:46:46,595 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2020-07-20 05:46:46,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-07-20 05:46:46,595 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2020-07-20 05:46:46,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 05:46:46,596 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:46:46,596 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:46:46,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:46:46,799 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:46:46,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:46:46,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1366132026, now seen corresponding path program 1 times [2020-07-20 05:46:46,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:46:46,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392948002] [2020-07-20 05:46:46,801 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a03fe1b [2020-07-20 05:46:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:47,197 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 05:46:47,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392948002] [2020-07-20 05:46:47,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101853801] [2020-07-20 05:46:47,198 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79fa2172 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:46:47,296 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79fa2172 issued 2 check-sat command(s) [2020-07-20 05:46:47,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:46:47,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 53 conjunts are in the unsatisfiable core [2020-07-20 05:46:47,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:46:47,582 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 05:46:47,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 05:46:47,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11] total 31 [2020-07-20 05:46:47,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815839500] [2020-07-20 05:46:47,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-07-20 05:46:47,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:46:47,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-07-20 05:46:47,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=860, Unknown=0, NotChecked=0, Total=930 [2020-07-20 05:46:47,584 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 31 states. [2020-07-20 05:46:49,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:46:49,190 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2020-07-20 05:46:49,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-20 05:46:49,190 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 57 [2020-07-20 05:46:49,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:46:49,192 INFO L225 Difference]: With dead ends: 67 [2020-07-20 05:46:49,192 INFO L226 Difference]: Without dead ends: 47 [2020-07-20 05:46:49,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=256, Invalid=2294, Unknown=0, NotChecked=0, Total=2550 [2020-07-20 05:46:49,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-07-20 05:46:49,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-07-20 05:46:49,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-07-20 05:46:49,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-07-20 05:46:49,203 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 57 [2020-07-20 05:46:49,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:46:49,203 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-07-20 05:46:49,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-07-20 05:46:49,204 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-07-20 05:46:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 05:46:49,205 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:46:49,205 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:46:49,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:46:49,408 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:46:49,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:46:49,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1588672638, now seen corresponding path program 1 times [2020-07-20 05:46:49,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:46:49,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525015029] [2020-07-20 05:46:49,410 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a03fe1b [2020-07-20 05:46:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:46:49,707 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 05:46:49,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525015029] [2020-07-20 05:46:49,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506482192] [2020-07-20 05:46:49,708 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2f966608 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:46:49,837 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2f966608 issued 2 check-sat command(s) [2020-07-20 05:46:49,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:46:49,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-20 05:46:49,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:46:49,990 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-20 05:46:49,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 05:46:49,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 23 [2020-07-20 05:46:49,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347803852] [2020-07-20 05:46:49,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 05:46:49,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:46:49,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 05:46:49,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2020-07-20 05:46:49,992 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 7 states. [2020-07-20 05:46:50,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:46:50,074 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-07-20 05:46:50,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 05:46:50,075 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-07-20 05:46:50,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:46:50,075 INFO L225 Difference]: With dead ends: 47 [2020-07-20 05:46:50,075 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 05:46:50,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2020-07-20 05:46:50,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 05:46:50,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 05:46:50,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 05:46:50,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 05:46:50,077 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2020-07-20 05:46:50,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:46:50,078 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 05:46:50,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 05:46:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 05:46:50,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 05:46:50,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-07-20 05:46:50,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 05:46:50,657 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 34 [2020-07-20 05:46:51,365 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2020-07-20 05:46:51,422 INFO L268 CegarLoopResult]: For program point my_mallocFINAL(lines 878 880) no Hoare annotation was computed. [2020-07-20 05:46:51,423 INFO L264 CegarLoopResult]: At program point L879(line 879) the Hoare annotation is: (or (not (= 8 |my_malloc_#in~size|)) (and (= 8 my_malloc_~size) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|))) [2020-07-20 05:46:51,423 INFO L268 CegarLoopResult]: For program point L879-1(line 879) no Hoare annotation was computed. [2020-07-20 05:46:51,423 INFO L264 CegarLoopResult]: At program point my_mallocENTRY(lines 878 880) the Hoare annotation is: (or (not (= 8 |my_malloc_#in~size|)) (and (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|))) [2020-07-20 05:46:51,423 INFO L268 CegarLoopResult]: For program point my_mallocEXIT(lines 878 880) no Hoare annotation was computed. [2020-07-20 05:46:51,423 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 05:46:51,423 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= ~elem~0.base |old(~elem~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#head~0.base| |old(~#head~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= |old(#length)| |#length|) (= |~#head~0.offset| |old(~#head~0.offset)|) (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|)) [2020-07-20 05:46:51,424 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 05:46:51,424 INFO L268 CegarLoopResult]: For program point L896(lines 896 897) no Hoare annotation was computed. [2020-07-20 05:46:51,424 INFO L268 CegarLoopResult]: For program point L896-2(lines 895 898) no Hoare annotation was computed. [2020-07-20 05:46:51,424 INFO L268 CegarLoopResult]: For program point list_delEXIT(lines 895 898) no Hoare annotation was computed. [2020-07-20 05:46:51,424 INFO L264 CegarLoopResult]: At program point list_delENTRY(lines 895 898) the Hoare annotation is: (let ((.cse0 (and (= |old(~elem~0.offset)| ~elem~0.offset) (= |old(~elem~0.base)| ~elem~0.base)))) (and (or .cse0 (not (= |old(~elem~0.offset)| 0)) (not (= 0 |old(~elem~0.base)|))) (or (not (<= 0 ~guard_malloc_counter~0.offset)) .cse0))) [2020-07-20 05:46:51,425 INFO L264 CegarLoopResult]: At program point list_addENTRY(lines 889 893) the Hoare annotation is: (let ((.cse1 (not (<= 0 ~guard_malloc_counter~0.offset))) (.cse0 (and (= |old(~elem~0.offset)| ~elem~0.offset) (= |old(~elem~0.base)| ~elem~0.base)))) (and (or .cse0 .cse1 (not (<= (+ |old(~elem~0.offset)| 1) |list_add_#in~new.offset|))) (or .cse0 (not (= |old(~elem~0.offset)| 0)) (not (= 0 |old(~elem~0.base)|)) (and (= 0 |list_add_#in~new.offset|) (= 0 |list_add_#in~new.base|))) (or .cse1 .cse0 (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|))))) [2020-07-20 05:46:51,425 INFO L268 CegarLoopResult]: For program point L891(lines 891 892) no Hoare annotation was computed. [2020-07-20 05:46:51,425 INFO L268 CegarLoopResult]: For program point L890(line 890) no Hoare annotation was computed. [2020-07-20 05:46:51,425 INFO L268 CegarLoopResult]: For program point L891-2(lines 889 893) no Hoare annotation was computed. [2020-07-20 05:46:51,425 INFO L264 CegarLoopResult]: At program point L890-2(line 890) the Hoare annotation is: (let ((.cse0 (not (<= 0 ~guard_malloc_counter~0.offset)))) (and (or (not (= |old(~elem~0.offset)| 0)) (not (= 0 |old(~elem~0.base)|)) (and (= 0 |list_add_#in~new.offset|) (= 0 |list_add_#in~new.base|))) (or .cse0 (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|))) (or .cse0 (not (<= (+ |old(~elem~0.offset)| 1) |list_add_#in~new.offset|))))) [2020-07-20 05:46:51,425 INFO L268 CegarLoopResult]: For program point L890-3(line 890) no Hoare annotation was computed. [2020-07-20 05:46:51,425 INFO L268 CegarLoopResult]: For program point list_addEXIT(lines 889 893) no Hoare annotation was computed. [2020-07-20 05:46:51,426 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-07-20 05:46:51,426 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2020-07-20 05:46:51,426 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2020-07-20 05:46:51,426 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2020-07-20 05:46:51,426 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 05:46:51,426 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~elem~0.base) (= 0 ~elem~0.offset) (<= 0 ~guard_malloc_counter~0.offset)) [2020-07-20 05:46:51,426 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 05:46:51,426 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 05:46:51,426 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 902 917) the Hoare annotation is: (or (not (<= 0 |old(~guard_malloc_counter~0.offset)|)) (and (= |old(~elem~0.offset)| ~elem~0.offset) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |old(~elem~0.base)| ~elem~0.base) (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (not (= 0 |old(~elem~0.base)|))) [2020-07-20 05:46:51,426 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 902 917) no Hoare annotation was computed. [2020-07-20 05:46:51,427 INFO L264 CegarLoopResult]: At program point L909(line 909) the Hoare annotation is: (or (not (<= 0 |old(~guard_malloc_counter~0.offset)|)) (and (= 0 ~elem~0.base) (= 0 ~elem~0.offset) (or (not (= main_~dev2~0.base 0)) (not (= 0 main_~dev2~0.offset)))) (not (= |old(~elem~0.offset)| 0)) (not (= 0 |old(~elem~0.base)|)) (and (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset) (<= 1 main_~dev1~0.offset) (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset) (<= (+ ~elem~0.offset 1) main_~dev2~0.offset))) [2020-07-20 05:46:51,427 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 902 917) no Hoare annotation was computed. [2020-07-20 05:46:51,427 INFO L264 CegarLoopResult]: At program point L908(line 908) the Hoare annotation is: (let ((.cse0 (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset)) (.cse1 (<= 1 main_~dev1~0.offset)) (.cse2 (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset)) (.cse3 (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset))) (or (not (<= 0 |old(~guard_malloc_counter~0.offset)|)) (and (= 0 ~elem~0.base) (= 0 ~elem~0.offset) (or (not (= main_~dev2~0.base 0)) (not (= 0 main_~dev2~0.offset)))) (not (= |old(~elem~0.offset)| 0)) (and .cse0 .cse1 (= main_~dev2~0.base ~elem~0.base) .cse2 .cse3 (= main_~dev2~0.offset ~elem~0.offset)) (not (= 0 |old(~elem~0.base)|)) (and .cse0 .cse1 .cse2 .cse3 (<= (+ ~elem~0.offset 1) main_~dev2~0.offset)))) [2020-07-20 05:46:51,427 INFO L264 CegarLoopResult]: At program point L907(line 907) the Hoare annotation is: (or (not (<= 0 |old(~guard_malloc_counter~0.offset)|)) (and (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset) (<= 1 main_~dev1~0.offset) (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset) (= |old(~elem~0.offset)| ~elem~0.offset) (= |old(~elem~0.base)| ~elem~0.base)) (not (= |old(~elem~0.offset)| 0)) (not (= 0 |old(~elem~0.base)|))) [2020-07-20 05:46:51,427 INFO L268 CegarLoopResult]: For program point L906(lines 906 915) no Hoare annotation was computed. [2020-07-20 05:46:51,427 INFO L264 CegarLoopResult]: At program point L907-1(line 907) the Hoare annotation is: (let ((.cse0 (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset)) (.cse1 (<= 1 main_~dev1~0.offset)) (.cse2 (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset)) (.cse3 (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset))) (or (not (<= 0 |old(~guard_malloc_counter~0.offset)|)) (and .cse0 .cse1 .cse2 .cse3 (= |old(~elem~0.offset)| ~elem~0.offset) (= |old(~elem~0.base)| ~elem~0.base)) (not (= |old(~elem~0.offset)| 0)) (and .cse0 .cse1 (= main_~dev2~0.base ~elem~0.base) .cse2 .cse3 (= main_~dev2~0.offset ~elem~0.offset)) (not (= 0 |old(~elem~0.base)|)))) [2020-07-20 05:46:51,427 INFO L264 CegarLoopResult]: At program point L905(line 905) the Hoare annotation is: (or (not (<= 0 |old(~guard_malloc_counter~0.offset)|)) (and (= 0 main_~dev1~0.base) (= 0 main_~dev1~0.offset)) (not (= |old(~elem~0.offset)| 0)) (not (= 0 |old(~elem~0.base)|)) (and (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset) (<= 1 main_~dev1~0.offset) (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (= |old(~elem~0.offset)| ~elem~0.offset) (= |old(~elem~0.base)| ~elem~0.base))) [2020-07-20 05:46:51,428 INFO L268 CegarLoopResult]: For program point L906-1(lines 906 915) no Hoare annotation was computed. [2020-07-20 05:46:51,428 INFO L264 CegarLoopResult]: At program point L904(line 904) the Hoare annotation is: (or (not (<= 0 |old(~guard_malloc_counter~0.offset)|)) (and (= |old(~elem~0.offset)| ~elem~0.offset) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |old(~elem~0.base)| ~elem~0.base) (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|)) (not (= |old(~elem~0.offset)| 0)) (not (= 0 |old(~elem~0.base)|))) [2020-07-20 05:46:51,428 INFO L268 CegarLoopResult]: For program point L905-1(line 905) no Hoare annotation was computed. [2020-07-20 05:46:51,428 INFO L268 CegarLoopResult]: For program point L904-1(line 904) no Hoare annotation was computed. [2020-07-20 05:46:51,428 INFO L264 CegarLoopResult]: At program point __getMemoryENTRY(lines 869 876) the Hoare annotation is: (or (not (<= 0 |old(~guard_malloc_counter~0.offset)|)) (and (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|)) (not (= 8 |__getMemory_#in~size|)) (not (= 0 ~elem~0.offset)) (not (= 0 ~elem~0.base))) [2020-07-20 05:46:51,428 INFO L268 CegarLoopResult]: For program point __getMemoryEXIT(lines 869 876) no Hoare annotation was computed. [2020-07-20 05:46:51,428 INFO L268 CegarLoopResult]: For program point __getMemoryFINAL(lines 869 876) no Hoare annotation was computed. [2020-07-20 05:46:51,428 INFO L268 CegarLoopResult]: For program point L873(lines 873 874) no Hoare annotation was computed. [2020-07-20 05:46:51,428 INFO L268 CegarLoopResult]: For program point L871(line 871) no Hoare annotation was computed. [2020-07-20 05:46:51,428 INFO L264 CegarLoopResult]: At program point L871-2(line 871) the Hoare annotation is: (or (not (<= 0 |old(~guard_malloc_counter~0.offset)|)) (not (= 8 |__getMemory_#in~size|)) (not (= ~elem~0.offset 0)) (not (= 0 ~elem~0.base))) [2020-07-20 05:46:51,429 INFO L268 CegarLoopResult]: For program point L871-3(line 871) no Hoare annotation was computed. [2020-07-20 05:46:51,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:46:51 BoogieIcfgContainer [2020-07-20 05:46:51,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 05:46:51,436 INFO L168 Benchmark]: Toolchain (without parser) took 18861.45 ms. Allocated memory was 137.4 MB in the beginning and 411.0 MB in the end (delta: 273.7 MB). Free memory was 100.2 MB in the beginning and 132.2 MB in the end (delta: -32.0 MB). Peak memory consumption was 241.7 MB. Max. memory is 7.1 GB. [2020-07-20 05:46:51,436 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 05:46:51,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.59 ms. Allocated memory was 137.4 MB in the beginning and 203.4 MB in the end (delta: 66.1 MB). Free memory was 99.8 MB in the beginning and 169.3 MB in the end (delta: -69.5 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-07-20 05:46:51,438 INFO L168 Benchmark]: Boogie Preprocessor took 72.12 ms. Allocated memory is still 203.4 MB. Free memory was 169.3 MB in the beginning and 166.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-07-20 05:46:51,439 INFO L168 Benchmark]: RCFGBuilder took 675.96 ms. Allocated memory is still 203.4 MB. Free memory was 166.3 MB in the beginning and 120.5 MB in the end (delta: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 7.1 GB. [2020-07-20 05:46:51,440 INFO L168 Benchmark]: TraceAbstraction took 17493.76 ms. Allocated memory was 203.4 MB in the beginning and 411.0 MB in the end (delta: 207.6 MB). Free memory was 120.5 MB in the beginning and 132.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 195.9 MB. Max. memory is 7.1 GB. [2020-07-20 05:46:51,443 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 612.59 ms. Allocated memory was 137.4 MB in the beginning and 203.4 MB in the end (delta: 66.1 MB). Free memory was 99.8 MB in the beginning and 169.3 MB in the end (delta: -69.5 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.12 ms. Allocated memory is still 203.4 MB. Free memory was 169.3 MB in the beginning and 166.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 675.96 ms. Allocated memory is still 203.4 MB. Free memory was 166.3 MB in the beginning and 120.5 MB in the end (delta: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17493.76 ms. Allocated memory was 203.4 MB in the beginning and 411.0 MB in the end (delta: 207.6 MB). Free memory was 120.5 MB in the beginning and 132.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 195.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.2s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 333 SDtfs, 471 SDslu, 1089 SDs, 0 SdLazy, 5457 SolverSat, 459 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 704 GetRequests, 409 SyntacticMatches, 6 SemanticMatches, 289 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1590 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 28 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 77 PreInvPairs, 90 NumberOfFragments, 549 HoareAnnotationTreeSize, 77 FomulaSimplifications, 1878 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 18 FomulaSimplificationsInter, 1035 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 777 NumberOfCodeBlocks, 640 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 760 ConstructedInterpolants, 0 QuantifiedInterpolants, 148501 SizeOfPredicates, 70 NumberOfNonLiveVariables, 1697 ConjunctsInSsa, 288 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 151/248 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...