/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 03:03:20,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 03:03:20,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 03:03:20,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 03:03:20,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 03:03:20,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 03:03:20,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 03:03:20,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 03:03:20,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 03:03:20,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 03:03:20,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 03:03:20,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 03:03:20,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 03:03:20,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 03:03:20,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 03:03:20,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 03:03:20,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 03:03:20,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 03:03:20,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 03:03:20,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 03:03:20,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 03:03:20,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 03:03:20,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 03:03:20,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 03:03:20,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 03:03:20,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 03:03:20,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 03:03:20,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 03:03:20,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 03:03:20,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 03:03:20,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 03:03:20,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 03:03:20,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 03:03:20,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 03:03:20,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 03:03:20,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 03:03:20,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 03:03:20,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 03:03:20,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 03:03:20,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 03:03:20,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 03:03:20,422 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 03:03:20,443 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 03:03:20,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 03:03:20,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 03:03:20,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 03:03:20,445 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 03:03:20,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 03:03:20,445 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 03:03:20,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 03:03:20,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 03:03:20,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 03:03:20,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 03:03:20,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 03:03:20,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 03:03:20,447 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 03:03:20,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 03:03:20,447 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 03:03:20,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 03:03:20,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 03:03:20,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 03:03:20,448 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 03:03:20,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 03:03:20,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 03:03:20,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 03:03:20,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 03:03:20,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 03:03:20,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 03:03:20,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 03:03:20,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 03:03:20,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 03:03:20,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-08-22 03:03:20,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 03:03:20,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 03:03:20,769 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 03:03:20,771 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 03:03:20,772 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 03:03:20,772 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-08-22 03:03:20,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8eafe509b/ee1a8caef12649acbe7cb9bfb8327f81/FLAGdc077af45 [2020-08-22 03:03:21,449 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 03:03:21,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-08-22 03:03:21,462 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8eafe509b/ee1a8caef12649acbe7cb9bfb8327f81/FLAGdc077af45 [2020-08-22 03:03:21,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8eafe509b/ee1a8caef12649acbe7cb9bfb8327f81 [2020-08-22 03:03:21,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 03:03:21,752 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 03:03:21,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 03:03:21,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 03:03:21,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 03:03:21,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:03:21" (1/1) ... [2020-08-22 03:03:21,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@246af4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:03:21, skipping insertion in model container [2020-08-22 03:03:21,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:03:21" (1/1) ... [2020-08-22 03:03:21,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 03:03:21,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 03:03:22,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:03:22,249 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 03:03:22,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:03:22,361 INFO L208 MainTranslator]: Completed translation [2020-08-22 03:03:22,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:03:22 WrapperNode [2020-08-22 03:03:22,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 03:03:22,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 03:03:22,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 03:03:22,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 03:03:22,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:03:22" (1/1) ... [2020-08-22 03:03:22,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:03:22" (1/1) ... [2020-08-22 03:03:22,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:03:22" (1/1) ... [2020-08-22 03:03:22,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:03:22" (1/1) ... [2020-08-22 03:03:22,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:03:22" (1/1) ... [2020-08-22 03:03:22,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:03:22" (1/1) ... [2020-08-22 03:03:22,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:03:22" (1/1) ... [2020-08-22 03:03:22,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 03:03:22,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 03:03:22,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 03:03:22,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 03:03:22,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:03:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-22 03:03:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 03:03:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 03:03:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-22 03:03:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-08-22 03:03:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-08-22 03:03:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-08-22 03:03:22,501 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-08-22 03:03:22,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 03:03:22,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 03:03:22,502 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-22 03:03:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-08-22 03:03:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-08-22 03:03:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-08-22 03:03:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-08-22 03:03:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-08-22 03:03:22,504 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-08-22 03:03:22,504 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-08-22 03:03:22,504 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-08-22 03:03:22,504 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-08-22 03:03:22,505 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-08-22 03:03:22,506 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-08-22 03:03:22,506 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-08-22 03:03:22,506 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-08-22 03:03:22,507 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-08-22 03:03:22,508 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-08-22 03:03:22,509 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-08-22 03:03:22,510 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-08-22 03:03:22,510 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-08-22 03:03:22,510 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-08-22 03:03:22,510 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-08-22 03:03:22,510 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-08-22 03:03:22,511 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-08-22 03:03:22,511 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-08-22 03:03:22,511 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-08-22 03:03:22,511 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-08-22 03:03:22,511 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-08-22 03:03:22,511 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-08-22 03:03:22,511 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-08-22 03:03:22,512 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-08-22 03:03:22,512 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-08-22 03:03:22,512 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-08-22 03:03:22,514 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-08-22 03:03:22,514 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-08-22 03:03:22,514 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-08-22 03:03:22,515 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-08-22 03:03:22,515 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-08-22 03:03:22,516 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-08-22 03:03:22,516 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-08-22 03:03:22,516 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 03:03:22,516 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-08-22 03:03:22,516 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-08-22 03:03:22,516 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-08-22 03:03:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-08-22 03:03:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-22 03:03:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-08-22 03:03:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-08-22 03:03:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-08-22 03:03:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-08-22 03:03:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-08-22 03:03:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-08-22 03:03:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-08-22 03:03:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-08-22 03:03:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-08-22 03:03:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-08-22 03:03:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-08-22 03:03:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-08-22 03:03:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-08-22 03:03:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-08-22 03:03:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-08-22 03:03:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-08-22 03:03:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-08-22 03:03:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-08-22 03:03:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-08-22 03:03:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-08-22 03:03:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-08-22 03:03:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-08-22 03:03:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-08-22 03:03:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-08-22 03:03:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-08-22 03:03:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-08-22 03:03:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-08-22 03:03:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-08-22 03:03:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-08-22 03:03:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-22 03:03:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-08-22 03:03:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-08-22 03:03:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-08-22 03:03:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-08-22 03:03:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-08-22 03:03:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-08-22 03:03:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-08-22 03:03:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-08-22 03:03:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-08-22 03:03:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-08-22 03:03:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-08-22 03:03:22,526 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-08-22 03:03:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-08-22 03:03:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-08-22 03:03:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-08-22 03:03:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-08-22 03:03:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-08-22 03:03:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-08-22 03:03:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-08-22 03:03:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-08-22 03:03:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-08-22 03:03:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-08-22 03:03:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-08-22 03:03:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-08-22 03:03:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-08-22 03:03:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-08-22 03:03:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-08-22 03:03:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 03:03:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 03:03:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-22 03:03:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 03:03:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-22 03:03:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-08-22 03:03:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-22 03:03:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-08-22 03:03:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-08-22 03:03:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-08-22 03:03:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-08-22 03:03:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-08-22 03:03:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-08-22 03:03:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-08-22 03:03:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-08-22 03:03:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-08-22 03:03:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-08-22 03:03:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-08-22 03:03:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 03:03:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-08-22 03:03:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-08-22 03:03:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-08-22 03:03:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-08-22 03:03:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 03:03:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 03:03:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 03:03:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-22 03:03:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 03:03:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 03:03:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 03:03:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 03:03:23,046 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 03:03:23,047 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 03:03:23,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:03:23 BoogieIcfgContainer [2020-08-22 03:03:23,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 03:03:23,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 03:03:23,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 03:03:23,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 03:03:23,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 03:03:21" (1/3) ... [2020-08-22 03:03:23,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474e5cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:03:23, skipping insertion in model container [2020-08-22 03:03:23,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:03:22" (2/3) ... [2020-08-22 03:03:23,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474e5cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:03:23, skipping insertion in model container [2020-08-22 03:03:23,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:03:23" (3/3) ... [2020-08-22 03:03:23,060 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-08-22 03:03:23,071 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 03:03:23,079 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 03:03:23,095 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 03:03:23,122 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 03:03:23,123 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 03:03:23,123 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 03:03:23,123 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 03:03:23,124 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 03:03:23,124 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 03:03:23,124 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 03:03:23,124 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 03:03:23,144 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-08-22 03:03:23,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-22 03:03:23,151 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:03:23,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:03:23,152 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:03:23,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:03:23,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1135050545, now seen corresponding path program 1 times [2020-08-22 03:03:23,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:03:23,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184882687] [2020-08-22 03:03:23,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:03:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:23,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:03:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:23,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:03:23,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184882687] [2020-08-22 03:03:23,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:03:23,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 03:03:23,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434240472] [2020-08-22 03:03:23,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 03:03:23,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:03:23,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 03:03:23,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-22 03:03:23,518 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 7 states. [2020-08-22 03:03:23,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:03:23,980 INFO L93 Difference]: Finished difference Result 88 states and 113 transitions. [2020-08-22 03:03:23,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 03:03:23,982 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-08-22 03:03:23,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:03:23,993 INFO L225 Difference]: With dead ends: 88 [2020-08-22 03:03:23,993 INFO L226 Difference]: Without dead ends: 43 [2020-08-22 03:03:23,998 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 [2020-08-22 03:03:24,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-22 03:03:24,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2020-08-22 03:03:24,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-08-22 03:03:24,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2020-08-22 03:03:24,049 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 13 [2020-08-22 03:03:24,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:03:24,049 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2020-08-22 03:03:24,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 03:03:24,050 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2020-08-22 03:03:24,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-08-22 03:03:24,052 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:03:24,053 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] [2020-08-22 03:03:24,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 03:03:24,053 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:03:24,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:03:24,054 INFO L82 PathProgramCache]: Analyzing trace with hash -925661111, now seen corresponding path program 1 times [2020-08-22 03:03:24,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:03:24,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449340620] [2020-08-22 03:03:24,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:03:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:24,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:03:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:24,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:03:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:24,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:24,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 03:03:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:24,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:24,320 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-22 03:03:24,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449340620] [2020-08-22 03:03:24,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:03:24,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 03:03:24,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690333505] [2020-08-22 03:03:24,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 03:03:24,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:03:24,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 03:03:24,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 03:03:24,324 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 9 states. [2020-08-22 03:03:24,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:03:24,567 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2020-08-22 03:03:24,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 03:03:24,567 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2020-08-22 03:03:24,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:03:24,569 INFO L225 Difference]: With dead ends: 67 [2020-08-22 03:03:24,571 INFO L226 Difference]: Without dead ends: 48 [2020-08-22 03:03:24,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 03:03:24,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-08-22 03:03:24,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-08-22 03:03:24,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-22 03:03:24,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-08-22 03:03:24,599 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 38 [2020-08-22 03:03:24,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:03:24,601 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-08-22 03:03:24,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 03:03:24,601 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-08-22 03:03:24,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-08-22 03:03:24,603 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:03:24,603 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:03:24,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 03:03:24,607 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:03:24,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:03:24,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1219064118, now seen corresponding path program 1 times [2020-08-22 03:03:24,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:03:24,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300432315] [2020-08-22 03:03:24,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:03:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:24,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:03:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:24,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:03:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:24,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:24,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 03:03:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:24,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:24,953 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-22 03:03:24,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300432315] [2020-08-22 03:03:24,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:03:24,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 03:03:24,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610597157] [2020-08-22 03:03:24,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 03:03:24,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:03:24,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 03:03:24,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 03:03:24,958 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 9 states. [2020-08-22 03:03:25,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:03:25,178 INFO L93 Difference]: Finished difference Result 69 states and 79 transitions. [2020-08-22 03:03:25,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 03:03:25,179 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2020-08-22 03:03:25,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:03:25,181 INFO L225 Difference]: With dead ends: 69 [2020-08-22 03:03:25,181 INFO L226 Difference]: Without dead ends: 43 [2020-08-22 03:03:25,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 03:03:25,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-22 03:03:25,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2020-08-22 03:03:25,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-08-22 03:03:25,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-08-22 03:03:25,201 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 38 [2020-08-22 03:03:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:03:25,201 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-08-22 03:03:25,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 03:03:25,202 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-08-22 03:03:25,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-08-22 03:03:25,205 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:03:25,205 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] [2020-08-22 03:03:25,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 03:03:25,206 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:03:25,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:03:25,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1188044311, now seen corresponding path program 1 times [2020-08-22 03:03:25,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:03:25,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026932540] [2020-08-22 03:03:25,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:03:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:25,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:03:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:25,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:03:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:25,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:25,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 03:03:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:25,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:25,556 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-22 03:03:25,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026932540] [2020-08-22 03:03:25,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:03:25,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-22 03:03:25,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107937553] [2020-08-22 03:03:25,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 03:03:25,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:03:25,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 03:03:25,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-08-22 03:03:25,559 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 15 states. [2020-08-22 03:03:26,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:03:26,471 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2020-08-22 03:03:26,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-22 03:03:26,472 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 38 [2020-08-22 03:03:26,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:03:26,473 INFO L225 Difference]: With dead ends: 75 [2020-08-22 03:03:26,474 INFO L226 Difference]: Without dead ends: 62 [2020-08-22 03:03:26,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2020-08-22 03:03:26,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-08-22 03:03:26,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2020-08-22 03:03:26,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-08-22 03:03:26,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2020-08-22 03:03:26,486 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 38 [2020-08-22 03:03:26,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:03:26,487 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2020-08-22 03:03:26,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 03:03:26,487 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2020-08-22 03:03:26,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-08-22 03:03:26,488 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:03:26,488 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] [2020-08-22 03:03:26,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 03:03:26,489 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:03:26,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:03:26,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1335597358, now seen corresponding path program 1 times [2020-08-22 03:03:26,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:03:26,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608304241] [2020-08-22 03:03:26,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:03:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:26,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:03:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:26,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:03:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:26,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:26,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 03:03:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:26,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:26,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:26,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 03:03:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:26,860 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 03:03:26,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608304241] [2020-08-22 03:03:26,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:03:26,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-08-22 03:03:26,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555916180] [2020-08-22 03:03:26,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-08-22 03:03:26,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:03:26,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-08-22 03:03:26,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-08-22 03:03:26,864 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand 22 states. [2020-08-22 03:03:27,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:03:27,963 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2020-08-22 03:03:27,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 03:03:27,966 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 45 [2020-08-22 03:03:27,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:03:27,968 INFO L225 Difference]: With dead ends: 65 [2020-08-22 03:03:27,968 INFO L226 Difference]: Without dead ends: 58 [2020-08-22 03:03:27,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=152, Invalid=1180, Unknown=0, NotChecked=0, Total=1332 [2020-08-22 03:03:27,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-08-22 03:03:27,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-08-22 03:03:27,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-08-22 03:03:27,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2020-08-22 03:03:27,981 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 45 [2020-08-22 03:03:27,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:03:27,982 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2020-08-22 03:03:27,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-08-22 03:03:27,983 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2020-08-22 03:03:27,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-08-22 03:03:27,984 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:03:27,984 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] [2020-08-22 03:03:27,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 03:03:27,985 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:03:27,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:03:27,985 INFO L82 PathProgramCache]: Analyzing trace with hash 526250732, now seen corresponding path program 1 times [2020-08-22 03:03:27,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:03:27,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191252724] [2020-08-22 03:03:27,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:03:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:28,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:03:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:28,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:03:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:28,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:28,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 03:03:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:28,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:28,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 03:03:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 03:03:28,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191252724] [2020-08-22 03:03:28,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:03:28,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 03:03:28,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440725232] [2020-08-22 03:03:28,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 03:03:28,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:03:28,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 03:03:28,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-08-22 03:03:28,292 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 16 states. [2020-08-22 03:03:28,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:03:28,910 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2020-08-22 03:03:28,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 03:03:28,911 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 45 [2020-08-22 03:03:28,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:03:28,913 INFO L225 Difference]: With dead ends: 59 [2020-08-22 03:03:28,913 INFO L226 Difference]: Without dead ends: 56 [2020-08-22 03:03:28,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2020-08-22 03:03:28,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-08-22 03:03:28,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2020-08-22 03:03:28,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-08-22 03:03:28,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2020-08-22 03:03:28,924 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 45 [2020-08-22 03:03:28,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:03:28,924 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-08-22 03:03:28,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 03:03:28,925 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2020-08-22 03:03:28,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-22 03:03:28,926 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:03:28,926 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] [2020-08-22 03:03:28,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 03:03:28,926 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:03:28,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:03:28,927 INFO L82 PathProgramCache]: Analyzing trace with hash -2119488644, now seen corresponding path program 1 times [2020-08-22 03:03:28,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:03:28,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084054983] [2020-08-22 03:03:28,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:03:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:29,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:03:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:29,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:03:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:29,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:29,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 03:03:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:29,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:29,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 03:03:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:29,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 03:03:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:29,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 03:03:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:29,342 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 03:03:29,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084054983] [2020-08-22 03:03:29,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:03:29,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-08-22 03:03:29,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226139123] [2020-08-22 03:03:29,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-08-22 03:03:29,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:03:29,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-08-22 03:03:29,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-08-22 03:03:29,344 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 22 states. [2020-08-22 03:03:30,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:03:30,341 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2020-08-22 03:03:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-22 03:03:30,341 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 57 [2020-08-22 03:03:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:03:30,343 INFO L225 Difference]: With dead ends: 64 [2020-08-22 03:03:30,343 INFO L226 Difference]: Without dead ends: 58 [2020-08-22 03:03:30,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=146, Invalid=1186, Unknown=0, NotChecked=0, Total=1332 [2020-08-22 03:03:30,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-08-22 03:03:30,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2020-08-22 03:03:30,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-08-22 03:03:30,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2020-08-22 03:03:30,361 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 57 [2020-08-22 03:03:30,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:03:30,364 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2020-08-22 03:03:30,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-08-22 03:03:30,364 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2020-08-22 03:03:30,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-22 03:03:30,366 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:03:30,367 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] [2020-08-22 03:03:30,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 03:03:30,367 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:03:30,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:03:30,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1366132026, now seen corresponding path program 1 times [2020-08-22 03:03:30,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:03:30,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750207220] [2020-08-22 03:03:30,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:03:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:30,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:03:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:30,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:03:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:30,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:30,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 03:03:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:30,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:30,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 03:03:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:30,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 03:03:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:30,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 03:03:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:30,904 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 03:03:30,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1750207220] [2020-08-22 03:03:30,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:03:30,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-08-22 03:03:30,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91778357] [2020-08-22 03:03:30,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-08-22 03:03:30,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:03:30,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-08-22 03:03:30,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2020-08-22 03:03:30,907 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand 23 states. [2020-08-22 03:03:31,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:03:31,981 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2020-08-22 03:03:31,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 03:03:31,982 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 57 [2020-08-22 03:03:31,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:03:31,983 INFO L225 Difference]: With dead ends: 63 [2020-08-22 03:03:31,983 INFO L226 Difference]: Without dead ends: 49 [2020-08-22 03:03:31,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=168, Invalid=1238, Unknown=0, NotChecked=0, Total=1406 [2020-08-22 03:03:31,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-08-22 03:03:31,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2020-08-22 03:03:31,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-08-22 03:03:31,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-08-22 03:03:31,992 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 57 [2020-08-22 03:03:31,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:03:31,992 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-08-22 03:03:31,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-08-22 03:03:31,993 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-08-22 03:03:31,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-22 03:03:31,994 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:03:31,994 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] [2020-08-22 03:03:31,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 03:03:31,994 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:03:31,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:03:31,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1588672638, now seen corresponding path program 1 times [2020-08-22 03:03:31,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:03:31,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946919168] [2020-08-22 03:03:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:03:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:32,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:03:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:32,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:03:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:32,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:32,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 03:03:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:32,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:32,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 03:03:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:32,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 03:03:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:32,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 03:03:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:32,332 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-22 03:03:32,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946919168] [2020-08-22 03:03:32,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:03:32,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-22 03:03:32,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580668658] [2020-08-22 03:03:32,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-22 03:03:32,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:03:32,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-22 03:03:32,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2020-08-22 03:03:32,335 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 18 states. [2020-08-22 03:03:33,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:03:33,094 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2020-08-22 03:03:33,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 03:03:33,095 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 57 [2020-08-22 03:03:33,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:03:33,096 INFO L225 Difference]: With dead ends: 60 [2020-08-22 03:03:33,096 INFO L226 Difference]: Without dead ends: 52 [2020-08-22 03:03:33,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=204, Invalid=918, Unknown=0, NotChecked=0, Total=1122 [2020-08-22 03:03:33,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-08-22 03:03:33,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2020-08-22 03:03:33,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-08-22 03:03:33,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-08-22 03:03:33,113 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 57 [2020-08-22 03:03:33,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:03:33,113 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-08-22 03:03:33,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-22 03:03:33,113 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-08-22 03:03:33,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-22 03:03:33,115 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:03:33,115 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] [2020-08-22 03:03:33,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 03:03:33,116 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:03:33,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:03:33,116 INFO L82 PathProgramCache]: Analyzing trace with hash 779326012, now seen corresponding path program 1 times [2020-08-22 03:03:33,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:03:33,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775897524] [2020-08-22 03:03:33,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:03:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:33,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:03:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:33,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:03:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:33,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:33,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 03:03:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:33,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:03:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:33,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 03:03:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:33,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 03:03:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:33,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 03:03:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:03:33,301 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-22 03:03:33,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775897524] [2020-08-22 03:03:33,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:03:33,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 03:03:33,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410112709] [2020-08-22 03:03:33,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 03:03:33,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:03:33,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 03:03:33,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-22 03:03:33,304 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 10 states. [2020-08-22 03:03:33,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:03:33,626 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-08-22 03:03:33,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 03:03:33,627 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2020-08-22 03:03:33,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:03:33,628 INFO L225 Difference]: With dead ends: 47 [2020-08-22 03:03:33,628 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 03:03:33,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-08-22 03:03:33,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 03:03:33,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 03:03:33,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 03:03:33,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 03:03:33,631 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2020-08-22 03:03:33,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:03:33,631 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 03:03:33,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 03:03:33,631 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 03:03:33,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 03:03:33,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 03:03:33,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 03:03:34,527 INFO L268 CegarLoopResult]: For program point my_mallocFINAL(lines 878 880) no Hoare annotation was computed. [2020-08-22 03:03:34,528 INFO L264 CegarLoopResult]: At program point L879(line 879) the Hoare annotation is: (or (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= my_malloc_~size 8)) (not (= |my_malloc_#in~size| 8))) [2020-08-22 03:03:34,528 INFO L268 CegarLoopResult]: For program point L879-1(line 879) no Hoare annotation was computed. [2020-08-22 03:03:34,528 INFO L264 CegarLoopResult]: At program point my_mallocENTRY(lines 878 880) the Hoare annotation is: (or (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (not (= |my_malloc_#in~size| 8))) [2020-08-22 03:03:34,528 INFO L268 CegarLoopResult]: For program point my_mallocEXIT(lines 878 880) no Hoare annotation was computed. [2020-08-22 03:03:34,528 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 03:03:34,529 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= |~#head~0.base| |old(~#head~0.base)|) (= |old(#length)| |#length|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |~#head~0.offset| |old(~#head~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~elem~0.base |old(~elem~0.base)|) (= |old(#valid)| |#valid|)) [2020-08-22 03:03:34,529 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 03:03:34,529 INFO L268 CegarLoopResult]: For program point L896(lines 896 897) no Hoare annotation was computed. [2020-08-22 03:03:34,529 INFO L268 CegarLoopResult]: For program point L896-2(lines 895 898) no Hoare annotation was computed. [2020-08-22 03:03:34,530 INFO L268 CegarLoopResult]: For program point list_delEXIT(lines 895 898) no Hoare annotation was computed. [2020-08-22 03:03:34,530 INFO L264 CegarLoopResult]: At program point list_delENTRY(lines 895 898) the Hoare annotation is: (and (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) [2020-08-22 03:03:34,530 INFO L264 CegarLoopResult]: At program point list_addENTRY(lines 889 893) the Hoare annotation is: (let ((.cse0 (and (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)))) (and (or (not (<= 1 ~guard_malloc_counter~0.offset)) (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|)) .cse0) (or (not (<= (+ |old(~elem~0.offset)| 1) |list_add_#in~new.offset|)) .cse0))) [2020-08-22 03:03:34,530 INFO L268 CegarLoopResult]: For program point L891(lines 891 892) no Hoare annotation was computed. [2020-08-22 03:03:34,530 INFO L268 CegarLoopResult]: For program point L890(line 890) no Hoare annotation was computed. [2020-08-22 03:03:34,530 INFO L268 CegarLoopResult]: For program point L891-2(lines 889 893) no Hoare annotation was computed. [2020-08-22 03:03:34,531 INFO L264 CegarLoopResult]: At program point L890-2(line 890) the Hoare annotation is: (and (not (<= (+ |old(~elem~0.offset)| 1) |list_add_#in~new.offset|)) (or (not (<= 1 ~guard_malloc_counter~0.offset)) (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|)))) [2020-08-22 03:03:34,531 INFO L268 CegarLoopResult]: For program point L890-3(line 890) no Hoare annotation was computed. [2020-08-22 03:03:34,531 INFO L268 CegarLoopResult]: For program point list_addEXIT(lines 889 893) no Hoare annotation was computed. [2020-08-22 03:03:34,531 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-08-22 03:03:34,531 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2020-08-22 03:03:34,531 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2020-08-22 03:03:34,532 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2020-08-22 03:03:34,532 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 03:03:34,532 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~elem~0.offset 0) (<= 0 ~guard_malloc_counter~0.offset)) [2020-08-22 03:03:34,532 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 03:03:34,532 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 03:03:34,532 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 902 917) the Hoare annotation is: (or (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) (not (= |old(~elem~0.offset)| 0)) (not (<= 0 |old(~guard_malloc_counter~0.offset)|))) [2020-08-22 03:03:34,532 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 902 917) no Hoare annotation was computed. [2020-08-22 03:03:34,533 INFO L264 CegarLoopResult]: At program point L909(line 909) the Hoare annotation is: (let ((.cse0 (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset))) (or (and .cse0 (<= (+ ~elem~0.offset 1) main_~dev2~0.offset) (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset)) (and .cse0 (<= 2 main_~dev2~0.offset) (= ~elem~0.offset 0)) (not (= |old(~elem~0.offset)| 0)) (not (<= 0 |old(~guard_malloc_counter~0.offset)|)))) [2020-08-22 03:03:34,533 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 902 917) no Hoare annotation was computed. [2020-08-22 03:03:34,533 INFO L264 CegarLoopResult]: At program point L908(line 908) the Hoare annotation is: (let ((.cse1 (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset)) (.cse2 (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset)) (.cse0 (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset)) (.cse3 (<= 2 main_~dev2~0.offset))) (or (and .cse0 (<= (+ ~elem~0.offset 1) main_~dev2~0.offset) .cse1 .cse2) (and .cse0 .cse3 .cse1 (= main_~dev2~0.base ~elem~0.base) (= main_~dev2~0.offset ~elem~0.offset) .cse2) (and .cse0 .cse3 (= ~elem~0.offset 0)) (not (= |old(~elem~0.offset)| 0)) (not (<= 0 |old(~guard_malloc_counter~0.offset)|)))) [2020-08-22 03:03:34,533 INFO L264 CegarLoopResult]: At program point L907(line 907) the Hoare annotation is: (or (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.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset) (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset)) (not (= |old(~elem~0.offset)| 0)) (not (<= 0 |old(~guard_malloc_counter~0.offset)|))) [2020-08-22 03:03:34,534 INFO L268 CegarLoopResult]: For program point L906(lines 906 915) no Hoare annotation was computed. [2020-08-22 03:03:34,534 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 (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset)) (.cse2 (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset))) (or (and .cse0 (<= 1 main_~dev1~0.offset) .cse1 (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset) .cse2) (and .cse0 (<= 2 main_~dev2~0.offset) .cse1 (= main_~dev2~0.base ~elem~0.base) (= main_~dev2~0.offset ~elem~0.offset) .cse2) (not (= |old(~elem~0.offset)| 0)) (not (<= 0 |old(~guard_malloc_counter~0.offset)|)))) [2020-08-22 03:03:34,534 INFO L264 CegarLoopResult]: At program point L905(line 905) the Hoare annotation is: (or (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.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) (and (= main_~dev1~0.base 0) (= main_~dev1~0.offset 0)) (not (= |old(~elem~0.offset)| 0)) (not (<= 0 |old(~guard_malloc_counter~0.offset)|))) [2020-08-22 03:03:34,534 INFO L268 CegarLoopResult]: For program point L906-1(lines 906 915) no Hoare annotation was computed. [2020-08-22 03:03:34,534 INFO L264 CegarLoopResult]: At program point L904(line 904) the Hoare annotation is: (or (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) (not (= |old(~elem~0.offset)| 0)) (not (<= 0 |old(~guard_malloc_counter~0.offset)|))) [2020-08-22 03:03:34,534 INFO L268 CegarLoopResult]: For program point L905-1(line 905) no Hoare annotation was computed. [2020-08-22 03:03:34,534 INFO L268 CegarLoopResult]: For program point L904-1(line 904) no Hoare annotation was computed. [2020-08-22 03:03:34,535 INFO L264 CegarLoopResult]: At program point __getMemoryENTRY(lines 869 876) the Hoare annotation is: (or (not (= |__getMemory_#in~size| 8)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (not (= ~elem~0.offset 0)) (not (<= 0 |old(~guard_malloc_counter~0.offset)|))) [2020-08-22 03:03:34,535 INFO L268 CegarLoopResult]: For program point __getMemoryEXIT(lines 869 876) no Hoare annotation was computed. [2020-08-22 03:03:34,535 INFO L268 CegarLoopResult]: For program point __getMemoryFINAL(lines 869 876) no Hoare annotation was computed. [2020-08-22 03:03:34,535 INFO L268 CegarLoopResult]: For program point L873(lines 873 874) no Hoare annotation was computed. [2020-08-22 03:03:34,535 INFO L268 CegarLoopResult]: For program point L871(line 871) no Hoare annotation was computed. [2020-08-22 03:03:34,535 INFO L264 CegarLoopResult]: At program point L871-2(line 871) the Hoare annotation is: (or (not (= |__getMemory_#in~size| 8)) (not (= ~elem~0.offset 0)) (not (<= 0 |old(~guard_malloc_counter~0.offset)|))) [2020-08-22 03:03:34,535 INFO L268 CegarLoopResult]: For program point L871-3(line 871) no Hoare annotation was computed. [2020-08-22 03:03:34,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 03:03:34 BoogieIcfgContainer [2020-08-22 03:03:34,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 03:03:34,543 INFO L168 Benchmark]: Toolchain (without parser) took 12790.89 ms. Allocated memory was 138.4 MB in the beginning and 367.5 MB in the end (delta: 229.1 MB). Free memory was 100.0 MB in the beginning and 215.4 MB in the end (delta: -115.4 MB). Peak memory consumption was 244.0 MB. Max. memory is 7.1 GB. [2020-08-22 03:03:34,544 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 03:03:34,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.14 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.8 MB in the beginning and 165.7 MB in the end (delta: -65.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-08-22 03:03:34,546 INFO L168 Benchmark]: Boogie Preprocessor took 52.41 ms. Allocated memory is still 201.3 MB. Free memory was 165.7 MB in the beginning and 162.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-08-22 03:03:34,547 INFO L168 Benchmark]: RCFGBuilder took 636.83 ms. Allocated memory is still 201.3 MB. Free memory was 162.9 MB in the beginning and 116.7 MB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 7.1 GB. [2020-08-22 03:03:34,548 INFO L168 Benchmark]: TraceAbstraction took 11488.50 ms. Allocated memory was 201.3 MB in the beginning and 367.5 MB in the end (delta: 166.2 MB). Free memory was 116.0 MB in the beginning and 215.4 MB in the end (delta: -99.4 MB). Peak memory consumption was 197.1 MB. Max. memory is 7.1 GB. [2020-08-22 03:03:34,552 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 608.14 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.8 MB in the beginning and 165.7 MB in the end (delta: -65.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.41 ms. Allocated memory is still 201.3 MB. Free memory was 165.7 MB in the beginning and 162.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 636.83 ms. Allocated memory is still 201.3 MB. Free memory was 162.9 MB in the beginning and 116.7 MB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11488.50 ms. Allocated memory was 201.3 MB in the beginning and 367.5 MB in the end (delta: 166.2 MB). Free memory was 116.0 MB in the beginning and 215.4 MB in the end (delta: -99.4 MB). Peak memory consumption was 197.1 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: 10.5s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 348 SDtfs, 471 SDslu, 891 SDs, 0 SdLazy, 4516 SolverSat, 437 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 334 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=7, 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, 10 MinimizatonAttempts, 36 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 73 PreInvPairs, 84 NumberOfFragments, 426 HoareAnnotationTreeSize, 73 FomulaSimplifications, 1366 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 18 FomulaSimplificationsInter, 996 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 445 NumberOfCodeBlocks, 445 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 435 ConstructedInterpolants, 0 QuantifiedInterpolants, 89234 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 90/143 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...