/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:34:22,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:34:22,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:34:22,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:34:22,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:34:22,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:34:22,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:34:22,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:34:22,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:34:22,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:34:22,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:34:22,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:34:22,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:34:22,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:34:22,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:34:22,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:34:22,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:34:22,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:34:22,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:34:22,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:34:22,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:34:22,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:34:22,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:34:22,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:34:22,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:34:22,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:34:22,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:34:22,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:34:22,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:34:22,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:34:22,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:34:22,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:34:22,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:34:22,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:34:22,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:34:22,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:34:22,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:34:22,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:34:22,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:34:22,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:34:22,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:34:22,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:34:22,219 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:34:22,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:34:22,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:34:22,221 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:34:22,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:34:22,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:34:22,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:34:22,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:34:22,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:34:22,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:34:22,223 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:34:22,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:34:22,223 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:34:22,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:34:22,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:34:22,224 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:34:22,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:34:22,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:34:22,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:34:22,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:34:22,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:34:22,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:34:22,225 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:34:22,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:34:22,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:34:22,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:34:22,698 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:34:22,699 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:34:22,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-10-23 20:34:22,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d041fdfc2/34b3d64e255647dd9a5657c2455ecb6a/FLAG92921453a [2020-10-23 20:34:23,506 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:34:23,507 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-10-23 20:34:23,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d041fdfc2/34b3d64e255647dd9a5657c2455ecb6a/FLAG92921453a [2020-10-23 20:34:23,810 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d041fdfc2/34b3d64e255647dd9a5657c2455ecb6a [2020-10-23 20:34:23,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:34:23,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:34:23,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:34:23,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:34:23,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:34:23,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:34:23" (1/1) ... [2020-10-23 20:34:23,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa68ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:23, skipping insertion in model container [2020-10-23 20:34:23,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:34:23" (1/1) ... [2020-10-23 20:34:23,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:34:23,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:34:24,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:34:24,311 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:34:24,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:34:24,462 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:34:24,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:24 WrapperNode [2020-10-23 20:34:24,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:34:24,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:34:24,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:34:24,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:34:24,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:24" (1/1) ... [2020-10-23 20:34:24,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:24" (1/1) ... [2020-10-23 20:34:24,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:24" (1/1) ... [2020-10-23 20:34:24,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:24" (1/1) ... [2020-10-23 20:34:24,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:24" (1/1) ... [2020-10-23 20:34:24,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:24" (1/1) ... [2020-10-23 20:34:24,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:24" (1/1) ... [2020-10-23 20:34:24,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:34:24,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:34:24,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:34:24,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:34:24,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:34:24,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:34:24,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:34:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:34:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-23 20:34:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-10-23 20:34:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-10-23 20:34:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-23 20:34:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-23 20:34:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:34:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:34:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:34:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:34:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:34:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-23 20:34:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-10-23 20:34:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-10-23 20:34:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-10-23 20:34:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-10-23 20:34:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-10-23 20:34:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-10-23 20:34:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-10-23 20:34:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-10-23 20:34:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-10-23 20:34:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-10-23 20:34:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-10-23 20:34:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-10-23 20:34:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-10-23 20:34:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-10-23 20:34:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-10-23 20:34:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-10-23 20:34:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-10-23 20:34:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-10-23 20:34:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-10-23 20:34:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-10-23 20:34:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-10-23 20:34:24,748 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-10-23 20:34:24,748 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-10-23 20:34:24,748 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-10-23 20:34:24,748 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-10-23 20:34:24,748 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-10-23 20:34:24,748 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-10-23 20:34:24,749 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-10-23 20:34:24,749 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-23 20:34:24,749 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-10-23 20:34:24,749 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-10-23 20:34:24,749 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-10-23 20:34:24,750 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-10-23 20:34:24,750 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-10-23 20:34:24,750 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-10-23 20:34:24,750 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-10-23 20:34:24,750 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-10-23 20:34:24,751 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-10-23 20:34:24,751 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:34:24,751 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-23 20:34:24,751 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-10-23 20:34:24,751 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-10-23 20:34:24,751 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-10-23 20:34:24,752 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-23 20:34:24,752 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-10-23 20:34:24,752 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-10-23 20:34:24,752 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-10-23 20:34:24,752 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-10-23 20:34:24,753 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-10-23 20:34:24,753 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-10-23 20:34:24,753 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-10-23 20:34:24,753 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-10-23 20:34:24,753 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-10-23 20:34:24,753 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-10-23 20:34:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-10-23 20:34:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-10-23 20:34:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-10-23 20:34:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-10-23 20:34:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-10-23 20:34:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-10-23 20:34:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-10-23 20:34:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-10-23 20:34:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-10-23 20:34:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-10-23 20:34:24,756 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-10-23 20:34:24,756 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-10-23 20:34:24,756 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-10-23 20:34:24,756 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-10-23 20:34:24,756 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-10-23 20:34:24,756 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-10-23 20:34:24,757 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-10-23 20:34:24,757 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-10-23 20:34:24,757 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-10-23 20:34:24,757 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-23 20:34:24,757 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-10-23 20:34:24,757 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-10-23 20:34:24,758 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-10-23 20:34:24,758 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-10-23 20:34:24,758 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-10-23 20:34:24,758 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-10-23 20:34:24,758 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-10-23 20:34:24,758 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-10-23 20:34:24,759 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-10-23 20:34:24,759 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-10-23 20:34:24,759 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-10-23 20:34:24,759 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-10-23 20:34:24,759 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-10-23 20:34:24,760 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-10-23 20:34:24,760 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-10-23 20:34:24,760 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-10-23 20:34:24,760 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-10-23 20:34:24,760 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-10-23 20:34:24,760 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-10-23 20:34:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-10-23 20:34:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-10-23 20:34:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-10-23 20:34:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-10-23 20:34:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-10-23 20:34:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-10-23 20:34:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-10-23 20:34:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-10-23 20:34:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:34:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 20:34:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-23 20:34:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:34:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-23 20:34:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-10-23 20:34:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-23 20:34:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-10-23 20:34:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-10-23 20:34:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-10-23 20:34:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-10-23 20:34:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-10-23 20:34:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-10-23 20:34:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-10-23 20:34:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-10-23 20:34:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-10-23 20:34:24,765 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-10-23 20:34:24,765 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-10-23 20:34:24,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:34:24,765 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-10-23 20:34:24,765 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-10-23 20:34:24,765 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-23 20:34:24,766 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-23 20:34:24,766 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:34:24,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:34:24,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:34:24,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-23 20:34:24,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:34:24,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:34:24,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:34:24,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:34:24,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:34:24,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:34:25,431 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:34:25,431 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 20:34:25,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:34:25 BoogieIcfgContainer [2020-10-23 20:34:25,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:34:25,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:34:25,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:34:25,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:34:25,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:34:23" (1/3) ... [2020-10-23 20:34:25,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e696a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:34:25, skipping insertion in model container [2020-10-23 20:34:25,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:24" (2/3) ... [2020-10-23 20:34:25,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e696a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:34:25, skipping insertion in model container [2020-10-23 20:34:25,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:34:25" (3/3) ... [2020-10-23 20:34:25,444 INFO L111 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-10-23 20:34:25,457 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:34:25,464 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:34:25,479 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:34:25,508 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:34:25,508 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:34:25,508 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:34:25,508 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:34:25,508 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:34:25,509 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:34:25,509 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:34:25,509 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:34:25,526 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-10-23 20:34:25,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-23 20:34:25,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:25,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:25,539 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:25,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:25,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1307017256, now seen corresponding path program 1 times [2020-10-23 20:34:25,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:25,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417221162] [2020-10-23 20:34:25,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:25,649 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:25,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:25,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:34:25,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417221162] [2020-10-23 20:34:25,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:25,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:34:25,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464593444] [2020-10-23 20:34:25,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:34:25,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:25,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:34:25,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:34:25,980 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 7 states. [2020-10-23 20:34:26,244 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-10-23 20:34:26,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:26,720 INFO L93 Difference]: Finished difference Result 136 states and 162 transitions. [2020-10-23 20:34:26,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 20:34:26,722 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-23 20:34:26,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:26,734 INFO L225 Difference]: With dead ends: 136 [2020-10-23 20:34:26,735 INFO L226 Difference]: Without dead ends: 72 [2020-10-23 20:34:26,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-23 20:34:26,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-23 20:34:26,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2020-10-23 20:34:26,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-23 20:34:26,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2020-10-23 20:34:26,802 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 27 [2020-10-23 20:34:26,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:26,802 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2020-10-23 20:34:26,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:34:26,803 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2020-10-23 20:34:26,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-23 20:34:26,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:26,809 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:26,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:34:26,810 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:26,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:26,811 INFO L82 PathProgramCache]: Analyzing trace with hash -662895711, now seen corresponding path program 1 times [2020-10-23 20:34:26,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:26,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471673337] [2020-10-23 20:34:26,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:26,819 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:27,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:27,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:34:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:27,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:27,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 20:34:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:27,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:27,294 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-23 20:34:27,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471673337] [2020-10-23 20:34:27,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:27,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:34:27,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662220018] [2020-10-23 20:34:27,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:34:27,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:27,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:34:27,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:34:27,298 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand 9 states. [2020-10-23 20:34:27,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:27,650 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-10-23 20:34:27,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 20:34:27,651 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-23 20:34:27,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:27,654 INFO L225 Difference]: With dead ends: 104 [2020-10-23 20:34:27,654 INFO L226 Difference]: Without dead ends: 78 [2020-10-23 20:34:27,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:34:27,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-23 20:34:27,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2020-10-23 20:34:27,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-23 20:34:27,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2020-10-23 20:34:27,678 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 67 [2020-10-23 20:34:27,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:27,678 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2020-10-23 20:34:27,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:34:27,679 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2020-10-23 20:34:27,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-23 20:34:27,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:27,681 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:27,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:34:27,682 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:27,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:27,682 INFO L82 PathProgramCache]: Analyzing trace with hash -2127599292, now seen corresponding path program 1 times [2020-10-23 20:34:27,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:27,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17559991] [2020-10-23 20:34:27,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:27,689 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:27,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:27,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:34:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:27,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:27,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 20:34:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:27,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:27,959 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-23 20:34:27,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17559991] [2020-10-23 20:34:27,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:27,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:34:27,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907609239] [2020-10-23 20:34:27,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:34:27,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:27,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:34:27,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:34:27,965 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 9 states. [2020-10-23 20:34:28,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:28,311 INFO L93 Difference]: Finished difference Result 107 states and 117 transitions. [2020-10-23 20:34:28,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 20:34:28,315 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-23 20:34:28,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:28,317 INFO L225 Difference]: With dead ends: 107 [2020-10-23 20:34:28,317 INFO L226 Difference]: Without dead ends: 70 [2020-10-23 20:34:28,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:34:28,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-23 20:34:28,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-10-23 20:34:28,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-23 20:34:28,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-10-23 20:34:28,336 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 67 [2020-10-23 20:34:28,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:28,337 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-10-23 20:34:28,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:34:28,337 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-10-23 20:34:28,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-23 20:34:28,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:28,340 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:28,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:34:28,341 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:28,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:28,343 INFO L82 PathProgramCache]: Analyzing trace with hash 992059239, now seen corresponding path program 1 times [2020-10-23 20:34:28,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:28,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5465168] [2020-10-23 20:34:28,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:28,353 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:28,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:28,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:34:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:28,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:28,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 20:34:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:28,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:28,835 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-23 20:34:28,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5465168] [2020-10-23 20:34:28,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:28,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-23 20:34:28,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767806330] [2020-10-23 20:34:28,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-23 20:34:28,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:28,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-23 20:34:28,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:34:28,838 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand 17 states. [2020-10-23 20:34:30,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:30,412 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2020-10-23 20:34:30,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-23 20:34:30,413 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 67 [2020-10-23 20:34:30,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:30,415 INFO L225 Difference]: With dead ends: 114 [2020-10-23 20:34:30,416 INFO L226 Difference]: Without dead ends: 98 [2020-10-23 20:34:30,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=150, Invalid=906, Unknown=0, NotChecked=0, Total=1056 [2020-10-23 20:34:30,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-23 20:34:30,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 82. [2020-10-23 20:34:30,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-23 20:34:30,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2020-10-23 20:34:30,441 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 67 [2020-10-23 20:34:30,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:30,442 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2020-10-23 20:34:30,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-23 20:34:30,442 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2020-10-23 20:34:30,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-23 20:34:30,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:30,444 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:30,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:34:30,444 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:30,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:30,445 INFO L82 PathProgramCache]: Analyzing trace with hash -898061266, now seen corresponding path program 1 times [2020-10-23 20:34:30,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:30,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269624730] [2020-10-23 20:34:30,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:30,453 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:30,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:30,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:34:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:30,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:30,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 20:34:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:30,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:30,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-23 20:34:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:30,929 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-23 20:34:30,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [269624730] [2020-10-23 20:34:30,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:30,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-23 20:34:30,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432420028] [2020-10-23 20:34:30,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-23 20:34:30,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:30,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-23 20:34:30,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-10-23 20:34:30,932 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand 18 states. [2020-10-23 20:34:32,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:32,264 INFO L93 Difference]: Finished difference Result 96 states and 103 transitions. [2020-10-23 20:34:32,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-23 20:34:32,264 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 76 [2020-10-23 20:34:32,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:32,267 INFO L225 Difference]: With dead ends: 96 [2020-10-23 20:34:32,268 INFO L226 Difference]: Without dead ends: 92 [2020-10-23 20:34:32,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=173, Invalid=949, Unknown=0, NotChecked=0, Total=1122 [2020-10-23 20:34:32,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-23 20:34:32,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 82. [2020-10-23 20:34:32,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-23 20:34:32,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2020-10-23 20:34:32,294 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 76 [2020-10-23 20:34:32,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:32,294 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2020-10-23 20:34:32,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-23 20:34:32,294 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2020-10-23 20:34:32,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-23 20:34:32,296 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:32,296 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:32,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:34:32,297 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:32,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:32,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1599704300, now seen corresponding path program 1 times [2020-10-23 20:34:32,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:32,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816173786] [2020-10-23 20:34:32,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:32,304 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:32,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:32,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:34:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:32,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:32,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 20:34:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:32,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:32,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-23 20:34:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:32,886 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-23 20:34:32,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816173786] [2020-10-23 20:34:32,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:32,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-10-23 20:34:32,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873825416] [2020-10-23 20:34:32,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-23 20:34:32,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:32,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-23 20:34:32,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-10-23 20:34:32,889 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 23 states. [2020-10-23 20:34:34,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:34,798 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2020-10-23 20:34:34,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-23 20:34:34,798 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 77 [2020-10-23 20:34:34,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:34,803 INFO L225 Difference]: With dead ends: 100 [2020-10-23 20:34:34,803 INFO L226 Difference]: Without dead ends: 91 [2020-10-23 20:34:34,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=210, Invalid=1682, Unknown=0, NotChecked=0, Total=1892 [2020-10-23 20:34:34,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-23 20:34:34,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2020-10-23 20:34:34,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-23 20:34:34,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2020-10-23 20:34:34,879 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 77 [2020-10-23 20:34:34,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:34,881 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2020-10-23 20:34:34,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-23 20:34:34,881 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2020-10-23 20:34:34,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-23 20:34:34,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:34,893 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:34,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:34:34,894 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:34,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:34,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1887351743, now seen corresponding path program 1 times [2020-10-23 20:34:34,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:34,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990543899] [2020-10-23 20:34:34,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:34,910 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:35,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:35,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:34:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:35,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:35,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 20:34:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:35,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:35,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-23 20:34:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:35,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-23 20:34:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:35,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-23 20:34:35,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:35,672 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-23 20:34:35,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990543899] [2020-10-23 20:34:35,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:35,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-10-23 20:34:35,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190896617] [2020-10-23 20:34:35,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-23 20:34:35,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:35,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-23 20:34:35,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2020-10-23 20:34:35,677 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand 24 states. [2020-10-23 20:34:37,663 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-23 20:34:38,027 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-23 20:34:38,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:38,230 INFO L93 Difference]: Finished difference Result 113 states and 118 transitions. [2020-10-23 20:34:38,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-23 20:34:38,231 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 91 [2020-10-23 20:34:38,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:38,233 INFO L225 Difference]: With dead ends: 113 [2020-10-23 20:34:38,233 INFO L226 Difference]: Without dead ends: 105 [2020-10-23 20:34:38,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=309, Invalid=2447, Unknown=0, NotChecked=0, Total=2756 [2020-10-23 20:34:38,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-23 20:34:38,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-10-23 20:34:38,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-23 20:34:38,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 110 transitions. [2020-10-23 20:34:38,302 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 110 transitions. Word has length 91 [2020-10-23 20:34:38,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:38,302 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 110 transitions. [2020-10-23 20:34:38,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-23 20:34:38,302 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 110 transitions. [2020-10-23 20:34:38,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-23 20:34:38,304 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:38,305 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:38,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 20:34:38,306 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:38,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:38,306 INFO L82 PathProgramCache]: Analyzing trace with hash 464416903, now seen corresponding path program 2 times [2020-10-23 20:34:38,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:38,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197855821] [2020-10-23 20:34:38,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:38,316 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:38,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:38,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:34:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:38,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:38,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 20:34:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:38,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:38,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-23 20:34:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:38,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-23 20:34:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:38,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-23 20:34:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:38,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:34:38,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197855821] [2020-10-23 20:34:38,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:38,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-10-23 20:34:38,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103525830] [2020-10-23 20:34:38,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-23 20:34:38,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:38,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-23 20:34:38,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2020-10-23 20:34:38,942 INFO L87 Difference]: Start difference. First operand 105 states and 110 transitions. Second operand 24 states. [2020-10-23 20:34:40,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:40,741 INFO L93 Difference]: Finished difference Result 113 states and 117 transitions. [2020-10-23 20:34:40,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-23 20:34:40,742 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 91 [2020-10-23 20:34:40,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:40,745 INFO L225 Difference]: With dead ends: 113 [2020-10-23 20:34:40,745 INFO L226 Difference]: Without dead ends: 103 [2020-10-23 20:34:40,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=232, Invalid=1748, Unknown=0, NotChecked=0, Total=1980 [2020-10-23 20:34:40,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-23 20:34:40,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2020-10-23 20:34:40,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-23 20:34:40,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 105 transitions. [2020-10-23 20:34:40,769 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 105 transitions. Word has length 91 [2020-10-23 20:34:40,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:40,769 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 105 transitions. [2020-10-23 20:34:40,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-23 20:34:40,770 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 105 transitions. [2020-10-23 20:34:40,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-23 20:34:40,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:40,771 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:40,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 20:34:40,771 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:40,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:40,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1704791095, now seen corresponding path program 1 times [2020-10-23 20:34:40,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:40,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984187578] [2020-10-23 20:34:40,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:40,779 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:40,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:41,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:34:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:41,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:41,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 20:34:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:41,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:34:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:41,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-23 20:34:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:41,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-23 20:34:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:41,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-23 20:34:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:41,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:34:41,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984187578] [2020-10-23 20:34:41,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:41,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-23 20:34:41,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086399120] [2020-10-23 20:34:41,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-23 20:34:41,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:41,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-23 20:34:41,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2020-10-23 20:34:41,270 INFO L87 Difference]: Start difference. First operand 102 states and 105 transitions. Second operand 19 states. [2020-10-23 20:34:42,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:42,775 INFO L93 Difference]: Finished difference Result 106 states and 109 transitions. [2020-10-23 20:34:42,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-23 20:34:42,776 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 92 [2020-10-23 20:34:42,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:42,777 INFO L225 Difference]: With dead ends: 106 [2020-10-23 20:34:42,777 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 20:34:42,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=253, Invalid=1469, Unknown=0, NotChecked=0, Total=1722 [2020-10-23 20:34:42,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 20:34:42,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 20:34:42,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 20:34:42,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 20:34:42,780 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2020-10-23 20:34:42,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:42,780 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 20:34:42,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-23 20:34:42,781 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 20:34:42,781 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 20:34:42,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 20:34:42,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 20:34:44,056 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 28 [2020-10-23 20:34:44,378 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 43 [2020-10-23 20:34:44,668 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 45 [2020-10-23 20:34:44,841 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 27 [2020-10-23 20:34:45,113 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 43 [2020-10-23 20:34:45,397 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 38 [2020-10-23 20:34:45,622 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 38 [2020-10-23 20:34:45,995 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2020-10-23 20:34:46,252 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-10-23 20:34:46,450 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 12 [2020-10-23 20:34:46,671 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 43 [2020-10-23 20:34:46,774 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 22 [2020-10-23 20:34:47,018 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2020-10-23 20:34:47,216 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 14 [2020-10-23 20:34:47,482 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 26 [2020-10-23 20:34:47,986 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 28 [2020-10-23 20:34:48,299 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 27 [2020-10-23 20:34:48,499 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 31 [2020-10-23 20:34:48,605 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 22 [2020-10-23 20:34:48,761 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 27 [2020-10-23 20:34:49,009 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2020-10-23 20:34:49,146 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 27 [2020-10-23 20:34:49,430 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-10-23 20:34:49,811 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 37 [2020-10-23 20:34:50,257 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-10-23 20:34:50,557 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 29 [2020-10-23 20:34:50,821 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 30 [2020-10-23 20:34:51,142 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 37 [2020-10-23 20:34:51,252 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2020-10-23 20:34:51,580 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 45 [2020-10-23 20:34:51,585 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-10-23 20:34:51,586 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-23 20:34:51,586 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-10-23 20:34:51,586 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-10-23 20:34:51,586 INFO L270 CegarLoopResult]: At program point L881(line 881) the Hoare annotation is: (or (not (= |my_malloc_#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)|) (= my_malloc_~size 8))) [2020-10-23 20:34:51,586 INFO L270 CegarLoopResult]: At program point my_mallocFINAL(lines 880 882) the Hoare annotation is: (let ((.cse0 (not (= |my_malloc_#in~size| 8)))) (and (or .cse0 (= my_malloc_~size 8)) (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (and (<= 0 |my_malloc_#res.base|) (<= |my_malloc_#res.base| 0) (<= 0 |my_malloc_#res.offset|) (<= |my_malloc_#res.offset| 0)) (and (or (not (<= 1 |old(~guard_malloc_counter~0.offset)|)) .cse0) (or (not (= |old(~guard_malloc_counter~0.offset)| 0)) .cse0)) (not (= ~elem~0.offset 0)) (let ((.cse1 (+ |old(~guard_malloc_counter~0.offset)| 1))) (and (<= ~guard_malloc_counter~0.offset .cse1) (<= |my_malloc_#res.offset| ~guard_malloc_counter~0.offset) (<= .cse1 |my_malloc_#res.offset|)))))) [2020-10-23 20:34:51,587 INFO L270 CegarLoopResult]: At program point L881-1(line 881) the Hoare annotation is: (let ((.cse0 (not (= |my_malloc_#in~size| 8)))) (and (or .cse0 (= my_malloc_~size 8)) (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (and (or (not (<= 1 |old(~guard_malloc_counter~0.offset)|)) .cse0) (or (not (= |old(~guard_malloc_counter~0.offset)| 0)) .cse0)) (and (<= 0 |my_malloc_#t~ret37.base|) (<= 0 |my_malloc_#t~ret37.offset|) (<= |my_malloc_#t~ret37.base| 0) (<= |my_malloc_#t~ret37.offset| 0)) (let ((.cse1 (+ |old(~guard_malloc_counter~0.offset)| 1))) (and (<= ~guard_malloc_counter~0.offset .cse1) (<= |my_malloc_#t~ret37.offset| .cse1) (<= .cse1 |my_malloc_#t~ret37.offset|) (<= .cse1 ~guard_malloc_counter~0.offset))) (not (= ~elem~0.offset 0))))) [2020-10-23 20:34:51,587 INFO L270 CegarLoopResult]: At program point L881-2(line 881) the Hoare annotation is: (let ((.cse0 (not (= |my_malloc_#in~size| 8)))) (and (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (and (<= 0 |my_malloc_#t~ret37.base|) (<= 0 |my_malloc_#t~ret37.offset|) (<= |my_malloc_#t~ret37.base| 0) (<= 0 |my_malloc_#res.base|) (<= |my_malloc_#t~ret37.offset| 0) (<= |my_malloc_#res.base| 0) (<= 0 |my_malloc_#res.offset|) (<= |my_malloc_#res.offset| 0)) (and (or (not (<= 1 |old(~guard_malloc_counter~0.offset)|)) .cse0) (or (not (= |old(~guard_malloc_counter~0.offset)| 0)) .cse0)) (let ((.cse1 (+ |old(~guard_malloc_counter~0.offset)| 1))) (and (<= ~guard_malloc_counter~0.offset .cse1) (<= |my_malloc_#t~ret37.offset| .cse1) (<= .cse1 |my_malloc_#t~ret37.offset|) (<= |my_malloc_#res.offset| ~guard_malloc_counter~0.offset) (<= .cse1 |my_malloc_#res.offset|))) (not (= ~elem~0.offset 0))) (or .cse0 (= my_malloc_~size 8)))) [2020-10-23 20:34:51,587 INFO L270 CegarLoopResult]: At program point my_mallocENTRY(lines 880 882) 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))) [2020-10-23 20:34:51,588 INFO L270 CegarLoopResult]: At program point my_mallocEXIT(lines 880 882) the Hoare annotation is: (let ((.cse0 (not (= |my_malloc_#in~size| 8)))) (and (or .cse0 (= my_malloc_~size 8)) (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (and (<= 0 |my_malloc_#res.base|) (<= |my_malloc_#res.base| 0) (<= 0 |my_malloc_#res.offset|) (<= |my_malloc_#res.offset| 0)) (and (or (not (<= 1 |old(~guard_malloc_counter~0.offset)|)) .cse0) (or (not (= |old(~guard_malloc_counter~0.offset)| 0)) .cse0)) (not (= ~elem~0.offset 0)) (let ((.cse1 (+ |old(~guard_malloc_counter~0.offset)| 1))) (and (<= ~guard_malloc_counter~0.offset .cse1) (<= |my_malloc_#res.offset| ~guard_malloc_counter~0.offset) (<= .cse1 |my_malloc_#res.offset|)))))) [2020-10-23 20:34:51,588 INFO L270 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= ~elem~0.base |old(~elem~0.base)|)) [2020-10-23 20:34:51,588 INFO L270 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= ~elem~0.base |old(~elem~0.base)|)) [2020-10-23 20:34:51,588 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= ~elem~0.base |old(~elem~0.base)|)) [2020-10-23 20:34:51,588 INFO L270 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= ~elem~0.base |old(~elem~0.base)|)) [2020-10-23 20:34:51,588 INFO L270 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= ~elem~0.base |old(~elem~0.base)|)) [2020-10-23 20:34:51,588 INFO L270 CegarLoopResult]: At program point L3-5(line 3) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= ~elem~0.base |old(~elem~0.base)|)) [2020-10-23 20:34:51,589 INFO L270 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 902) the Hoare annotation is: (and (= ~elem~0.offset 0) (= ~guard_malloc_counter~0.offset 0)) [2020-10-23 20:34:51,589 INFO L270 CegarLoopResult]: At program point L889(line 889) the Hoare annotation is: (and (= ~elem~0.offset |old(~elem~0.offset)|) (= ~elem~0.base |old(~elem~0.base)|) (= ~guard_malloc_counter~0.offset 0)) [2020-10-23 20:34:51,589 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#head~0.offset| |old(~#head~0.offset)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |~#head~0.base| |old(~#head~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~elem~0.base |old(~elem~0.base)|)) [2020-10-23 20:34:51,589 INFO L270 CegarLoopResult]: At program point L902(line 902) the Hoare annotation is: (and (= ~elem~0.offset 0) (= ~guard_malloc_counter~0.offset 0)) [2020-10-23 20:34:51,589 INFO L270 CegarLoopResult]: At program point L902-1(line 902) the Hoare annotation is: (and (= ~elem~0.offset 0) (= ~guard_malloc_counter~0.offset 0)) [2020-10-23 20:34:51,589 INFO L270 CegarLoopResult]: At program point L902-2(line 902) the Hoare annotation is: (and (= ~elem~0.offset 0) (= ~guard_malloc_counter~0.offset 0)) [2020-10-23 20:34:51,589 INFO L270 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= ~elem~0.base |old(~elem~0.base)|)) [2020-10-23 20:34:51,589 INFO L270 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= ~elem~0.offset |old(~elem~0.offset)|) (= ~elem~0.base |old(~elem~0.base)|)) [2020-10-23 20:34:51,590 INFO L270 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (= ~elem~0.offset 0) (= ~guard_malloc_counter~0.offset 0)) [2020-10-23 20:34:51,590 INFO L270 CegarLoopResult]: At program point L898-2(lines 897 900) the Hoare annotation is: (or (not (<= 1 ~guard_malloc_counter~0.offset)) (= ~elem~0.offset 0) (and (or (not (= |old(~elem~0.base)| |list_del_#in~entry.base|)) (not (= |list_del_#in~entry.offset| ~elem~0.offset))) (= |old(~elem~0.base)| ~elem~0.base) (= list_del_~entry.base |list_del_#in~entry.base|) (= |old(~elem~0.offset)| ~elem~0.offset) (= |list_del_#in~entry.offset| list_del_~entry.offset))) [2020-10-23 20:34:51,590 INFO L270 CegarLoopResult]: At program point list_delEXIT(lines 897 900) the Hoare annotation is: (or (not (<= 1 ~guard_malloc_counter~0.offset)) (= ~elem~0.offset 0) (and (or (not (= |old(~elem~0.base)| |list_del_#in~entry.base|)) (not (= |list_del_#in~entry.offset| ~elem~0.offset))) (= |old(~elem~0.base)| ~elem~0.base) (= list_del_~entry.base |list_del_#in~entry.base|) (= |old(~elem~0.offset)| ~elem~0.offset) (= |list_del_#in~entry.offset| list_del_~entry.offset))) [2020-10-23 20:34:51,590 INFO L270 CegarLoopResult]: At program point list_delENTRY(lines 897 900) the Hoare annotation is: (or (not (<= 1 ~guard_malloc_counter~0.offset)) (and (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset))) [2020-10-23 20:34:51,590 INFO L270 CegarLoopResult]: At program point L899(line 899) the Hoare annotation is: (or (not (<= 1 ~guard_malloc_counter~0.offset)) (and (= |old(~elem~0.base)| ~elem~0.base) (= list_del_~entry.base |list_del_#in~entry.base|) (= |old(~elem~0.offset)| ~elem~0.offset) (= |list_del_#in~entry.offset| list_del_~entry.offset))) [2020-10-23 20:34:51,590 INFO L270 CegarLoopResult]: At program point L898(lines 898 899) the Hoare annotation is: (or (not (<= 1 ~guard_malloc_counter~0.offset)) (and (= |old(~elem~0.base)| ~elem~0.base) (= list_del_~entry.base |list_del_#in~entry.base|) (= |old(~elem~0.offset)| ~elem~0.offset) (= |list_del_#in~entry.offset| list_del_~entry.offset))) [2020-10-23 20:34:51,590 INFO L270 CegarLoopResult]: At program point list_addENTRY(lines 891 895) the Hoare annotation is: (let ((.cse0 (and (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)))) (and (or (= |old(~elem~0.offset)| 2) (not (= |old(~elem~0.base)| |list_add_#in~new.base|)) (not (<= 2 |list_add_#in~new.offset|)) .cse0 (not (<= |list_add_#in~new.offset| 2))) (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))) [2020-10-23 20:34:51,591 INFO L270 CegarLoopResult]: At program point L894(line 894) the Hoare annotation is: (let ((.cse4 (= |old(~elem~0.base)| ~elem~0.base)) (.cse5 (= |old(~elem~0.offset)| ~elem~0.offset))) (let ((.cse2 (= list_add_~new.base |list_add_#in~new.base|)) (.cse3 (= |list_add_#in~new.offset| list_add_~new.offset)) (.cse1 (not (<= 1 ~guard_malloc_counter~0.offset))) (.cse0 (and .cse4 .cse5))) (and (or (= |old(~elem~0.offset)| 2) (not (= |old(~elem~0.base)| |list_add_#in~new.base|)) (not (<= 2 |list_add_#in~new.offset|)) .cse0 (not (<= |list_add_#in~new.offset| 2))) (or .cse1 (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|)) (and .cse2 .cse3 .cse4 .cse5)) (or (and .cse2 .cse3) .cse1 (not (<= 1 |list_add_#in~new.offset|)) (not (= |old(~elem~0.offset)| 0))) (or (not (<= (+ |old(~elem~0.offset)| 1) |list_add_#in~new.offset|)) .cse0)))) [2020-10-23 20:34:51,591 INFO L270 CegarLoopResult]: At program point L893(lines 893 894) the Hoare annotation is: (let ((.cse4 (= |old(~elem~0.base)| ~elem~0.base)) (.cse5 (= |old(~elem~0.offset)| ~elem~0.offset))) (let ((.cse1 (not (<= 1 ~guard_malloc_counter~0.offset))) (.cse2 (= list_add_~new.base |list_add_#in~new.base|)) (.cse3 (= |list_add_#in~new.offset| list_add_~new.offset)) (.cse0 (and .cse4 .cse5))) (and (or (= |old(~elem~0.offset)| 2) (not (= |old(~elem~0.base)| |list_add_#in~new.base|)) (not (<= 2 |list_add_#in~new.offset|)) .cse0 (not (<= |list_add_#in~new.offset| 2))) (or .cse1 (and .cse2 .cse3) (not (<= 1 |list_add_#in~new.offset|)) (not (= |old(~elem~0.offset)| 0))) (or .cse1 (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|)) (and .cse2 .cse3 .cse4 .cse5)) (or (not (<= (+ |old(~elem~0.offset)| 1) |list_add_#in~new.offset|)) .cse0)))) [2020-10-23 20:34:51,591 INFO L270 CegarLoopResult]: At program point L892(line 892) the Hoare annotation is: (let ((.cse0 (= list_add_~new.base |list_add_#in~new.base|)) (.cse1 (= |list_add_#in~new.offset| list_add_~new.offset)) (.cse2 (= |old(~elem~0.offset)| ~elem~0.offset))) (let ((.cse3 (and .cse0 .cse1 (= |old(~elem~0.base)| ~elem~0.base) .cse2))) (and (or (= |old(~elem~0.offset)| 2) (not (= |old(~elem~0.base)| |list_add_#in~new.base|)) (not (<= 2 |list_add_#in~new.offset|)) (and .cse0 (= ~elem~0.base |list_add_#in~new.base|) .cse1 .cse2) (not (<= |list_add_#in~new.offset| 2))) (or (not (<= (+ |old(~elem~0.offset)| 1) |list_add_#in~new.offset|)) .cse3) (or (not (<= 1 ~guard_malloc_counter~0.offset)) (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|)) .cse3)))) [2020-10-23 20:34:51,591 INFO L270 CegarLoopResult]: At program point L893-1(line 893) the Hoare annotation is: (let ((.cse4 (= |old(~elem~0.base)| ~elem~0.base)) (.cse5 (= |old(~elem~0.offset)| ~elem~0.offset))) (let ((.cse2 (= list_add_~new.base |list_add_#in~new.base|)) (.cse3 (= |list_add_#in~new.offset| list_add_~new.offset)) (.cse1 (not (<= 1 ~guard_malloc_counter~0.offset))) (.cse0 (and .cse4 .cse5))) (and (or (= |old(~elem~0.offset)| 2) (not (= |old(~elem~0.base)| |list_add_#in~new.base|)) (not (<= 2 |list_add_#in~new.offset|)) .cse0 (not (<= |list_add_#in~new.offset| 2))) (or .cse1 (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|)) (and .cse2 .cse3 .cse4 .cse5)) (or (and .cse2 .cse3) .cse1 (not (<= 1 |list_add_#in~new.offset|)) (not (= |old(~elem~0.offset)| 0))) (or (not (<= (+ |old(~elem~0.offset)| 1) |list_add_#in~new.offset|)) .cse0)))) [2020-10-23 20:34:51,591 INFO L270 CegarLoopResult]: At program point L891(lines 891 895) the Hoare annotation is: (let ((.cse0 (= list_add_~new.base |list_add_#in~new.base|)) (.cse1 (= |list_add_#in~new.offset| list_add_~new.offset)) (.cse2 (= |old(~elem~0.offset)| ~elem~0.offset))) (let ((.cse3 (and .cse0 .cse1 (= |old(~elem~0.base)| ~elem~0.base) .cse2))) (and (or (= |old(~elem~0.offset)| 2) (not (= |old(~elem~0.base)| |list_add_#in~new.base|)) (not (<= 2 |list_add_#in~new.offset|)) (and .cse0 (= ~elem~0.base |list_add_#in~new.base|) .cse1 .cse2) (not (<= |list_add_#in~new.offset| 2))) (or (not (<= (+ |old(~elem~0.offset)| 1) |list_add_#in~new.offset|)) .cse3) (or (not (<= 1 ~guard_malloc_counter~0.offset)) (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|)) .cse3)))) [2020-10-23 20:34:51,592 INFO L270 CegarLoopResult]: At program point L892-2(line 892) 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)|))) (or (= |old(~elem~0.offset)| 2) (not (= |old(~elem~0.base)| |list_add_#in~new.base|)) (not (<= 2 |list_add_#in~new.offset|)) (not (<= |list_add_#in~new.offset| 2)))) [2020-10-23 20:34:51,592 INFO L270 CegarLoopResult]: At program point L893-3(line 893) the Hoare annotation is: (let ((.cse5 (= |old(~elem~0.base)| ~elem~0.base)) (.cse6 (= |old(~elem~0.offset)| ~elem~0.offset))) (let ((.cse2 (not (<= 1 ~guard_malloc_counter~0.offset))) (.cse3 (= list_add_~new.base |list_add_#in~new.base|)) (.cse4 (= |list_add_#in~new.offset| list_add_~new.offset)) (.cse0 (not (<= 2 |list_add_#in~new.offset|))) (.cse1 (and .cse5 .cse6))) (and (or (= |old(~elem~0.offset)| 2) (not (= |old(~elem~0.base)| |list_add_#in~new.base|)) .cse0 .cse1 (not (<= |list_add_#in~new.offset| 2))) (or .cse2 (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|)) (and .cse3 .cse4 .cse5 .cse6)) (or .cse2 (and .cse3 .cse4) .cse0 (not (= |old(~elem~0.offset)| 0))) (or (not (<= (+ |old(~elem~0.offset)| 1) |list_add_#in~new.offset|)) .cse1)))) [2020-10-23 20:34:51,592 INFO L270 CegarLoopResult]: At program point L892-3(line 892) the Hoare annotation is: (let ((.cse4 (= |old(~elem~0.base)| ~elem~0.base)) (.cse5 (= |old(~elem~0.offset)| ~elem~0.offset))) (let ((.cse1 (not (<= 1 ~guard_malloc_counter~0.offset))) (.cse2 (= list_add_~new.base |list_add_#in~new.base|)) (.cse3 (= |list_add_#in~new.offset| list_add_~new.offset)) (.cse0 (and .cse4 .cse5))) (and (or (= |old(~elem~0.offset)| 2) (not (= |old(~elem~0.base)| |list_add_#in~new.base|)) (not (<= 2 |list_add_#in~new.offset|)) .cse0 (not (<= |list_add_#in~new.offset| 2))) (or .cse1 (and .cse2 .cse3) (not (<= 1 |list_add_#in~new.offset|)) (not (= |old(~elem~0.offset)| 0))) (or .cse1 (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|)) (and .cse2 .cse3 .cse4 .cse5)) (or (not (<= (+ |old(~elem~0.offset)| 1) |list_add_#in~new.offset|)) .cse0)))) [2020-10-23 20:34:51,592 INFO L270 CegarLoopResult]: At program point L893-4(lines 891 895) the Hoare annotation is: (let ((.cse4 (= list_add_~new.base |list_add_#in~new.base|)) (.cse5 (= |list_add_#in~new.offset| list_add_~new.offset)) (.cse6 (<= 1 ~guard_malloc_counter~0.offset))) (let ((.cse2 (= |old(~elem~0.base)| ~elem~0.base)) (.cse3 (and .cse4 (= ~elem~0.base |list_add_#in~new.base|) (= ~elem~0.offset |list_add_#in~new.offset|) .cse5 .cse6)) (.cse0 (not .cse6)) (.cse1 (not (= |old(~elem~0.offset)| 0)))) (and (or .cse0 (not (<= 1 |list_add_#in~new.offset|)) .cse1 (and (= ~elem~0.offset 0) .cse2) .cse3) (or .cse0 (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|)) (and .cse4 .cse5 .cse2 (= |old(~elem~0.offset)| ~elem~0.offset)) .cse3) (or (and .cse4 .cse5) .cse0 (not (<= 2 |list_add_#in~new.offset|)) .cse1)))) [2020-10-23 20:34:51,593 INFO L270 CegarLoopResult]: At program point list_addEXIT(lines 891 895) the Hoare annotation is: (let ((.cse4 (= list_add_~new.base |list_add_#in~new.base|)) (.cse5 (= |list_add_#in~new.offset| list_add_~new.offset)) (.cse6 (<= 1 ~guard_malloc_counter~0.offset))) (let ((.cse2 (= |old(~elem~0.base)| ~elem~0.base)) (.cse3 (and .cse4 (= ~elem~0.base |list_add_#in~new.base|) (= ~elem~0.offset |list_add_#in~new.offset|) .cse5 .cse6)) (.cse0 (not .cse6)) (.cse1 (not (= |old(~elem~0.offset)| 0)))) (and (or .cse0 (not (<= 1 |list_add_#in~new.offset|)) .cse1 (and (= ~elem~0.offset 0) .cse2) .cse3) (or .cse0 (not (<= (+ |list_add_#in~new.offset| 1) |old(~elem~0.offset)|)) (and .cse4 .cse5 .cse2 (= |old(~elem~0.offset)| ~elem~0.offset)) .cse3) (or (and .cse4 .cse5) .cse0 (not (<= 2 |list_add_#in~new.offset|)) .cse1)))) [2020-10-23 20:34:51,593 INFO L277 CegarLoopResult]: At program point __blast_assertEXIT(lines 6 9) the Hoare annotation is: true [2020-10-23 20:34:51,593 INFO L277 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-10-23 20:34:51,593 INFO L277 CegarLoopResult]: At program point __blast_assertFINAL(lines 6 9) the Hoare annotation is: true [2020-10-23 20:34:51,593 INFO L277 CegarLoopResult]: At program point __blast_assertENTRY(lines 6 9) the Hoare annotation is: true [2020-10-23 20:34:51,593 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-23 20:34:51,593 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~elem~0.offset 0) (= ~guard_malloc_counter~0.offset 0)) [2020-10-23 20:34:51,593 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 20:34:51,594 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-23 20:34:51,594 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 904 919) the Hoare annotation is: (or (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (= |old(~elem~0.offset)| 0)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base) (= ~guard_malloc_counter~0.offset 0))) [2020-10-23 20:34:51,594 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 904 919) the Hoare annotation is: true [2020-10-23 20:34:51,594 INFO L270 CegarLoopResult]: At program point L911(line 911) the Hoare annotation is: (let ((.cse1 (<= (+ |old(~guard_malloc_counter~0.offset)| 1) ~guard_malloc_counter~0.offset)) (.cse2 (<= main_~dev2~0.offset 2)) (.cse0 (<= 2 main_~dev2~0.offset)) (.cse3 (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset))) (or (and .cse0 (= ~elem~0.offset 0) (<= 1 ~guard_malloc_counter~0.offset)) (and .cse1 .cse2 (not (= 2 ~elem~0.offset)) .cse0 (= main_~dev2~0.base ~elem~0.base) .cse3) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (and .cse1 .cse2 .cse0 (<= (+ ~elem~0.offset 1) main_~dev2~0.offset) .cse3) (not (= |old(~elem~0.offset)| 0)))) [2020-10-23 20:34:51,594 INFO L270 CegarLoopResult]: At program point L910(line 910) the Hoare annotation is: (let ((.cse0 (<= 2 main_~dev2~0.offset)) (.cse1 (<= 1 ~guard_malloc_counter~0.offset))) (or (and .cse0 (= ~elem~0.offset 0) .cse1) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (= |old(~elem~0.offset)| 0)) (and (let ((.cse2 (<= main_~dev2~0.offset 2)) (.cse3 (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset))) (or (and .cse2 .cse0 (= main_~dev2~0.base ~elem~0.base) .cse3) (and .cse2 .cse0 (<= (+ ~elem~0.offset 1) main_~dev2~0.offset) .cse3))) .cse1))) [2020-10-23 20:34:51,594 INFO L270 CegarLoopResult]: At program point L909(line 909) the Hoare annotation is: (or (and (<= main_~dev2~0.offset 2) (<= 1 main_~dev1~0.offset) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset) (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset) (<= 1 ~guard_malloc_counter~0.offset)) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (= |old(~elem~0.offset)| 0))) [2020-10-23 20:34:51,594 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 904 919) the Hoare annotation is: true [2020-10-23 20:34:51,595 INFO L270 CegarLoopResult]: At program point L908(lines 908 917) the Hoare annotation is: (or (and (<= main_~dev2~0.offset 2) (<= 1 main_~dev1~0.offset) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset) (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset) (<= 1 ~guard_malloc_counter~0.offset)) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (and (= main_~dev2~0.offset 0) (= main_~dev2~0.base 0)) (and (= main_~dev1~0.base 0) (= main_~dev1~0.offset 0)) (not (= |old(~elem~0.offset)| 0))) [2020-10-23 20:34:51,595 INFO L270 CegarLoopResult]: At program point L909-1(line 909) the Hoare annotation is: (let ((.cse1 (+ main_~dev1~0.offset 1))) (let ((.cse0 (<= main_~dev2~0.offset 2)) (.cse2 (<= .cse1 main_~dev2~0.offset)) (.cse3 (<= 1 ~guard_malloc_counter~0.offset))) (or (and .cse0 (<= 2 main_~dev2~0.offset) (= main_~dev2~0.base ~elem~0.base) (<= .cse1 ~elem~0.offset) .cse2 .cse3) (and .cse0 (<= 1 main_~dev1~0.offset) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset) .cse2 .cse3) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (= |old(~elem~0.offset)| 0))))) [2020-10-23 20:34:51,595 INFO L270 CegarLoopResult]: At program point L907(line 907) the Hoare annotation is: (or (and (<= ~guard_malloc_counter~0.offset (+ |old(~guard_malloc_counter~0.offset)| 1)) (<= 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)) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (and (= main_~dev1~0.base 0) (= main_~dev1~0.offset 0)) (not (= |old(~elem~0.offset)| 0))) [2020-10-23 20:34:51,595 INFO L277 CegarLoopResult]: At program point L908-1(lines 908 917) the Hoare annotation is: true [2020-10-23 20:34:51,595 INFO L270 CegarLoopResult]: At program point L906(line 906) the Hoare annotation is: (or (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (= |old(~elem~0.offset)| 0)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base) (= ~guard_malloc_counter~0.offset 0))) [2020-10-23 20:34:51,595 INFO L270 CegarLoopResult]: At program point L907-1(line 907) the Hoare annotation is: (or (and (= |main_#t~ret40.base| 0) (= |main_#t~ret40.offset| 0)) (and (<= |main_#t~ret40.offset| 2) (<= (+ main_~dev1~0.offset 1) |main_#t~ret40.offset|) (<= 1 main_~dev1~0.offset) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset) (<= 1 ~guard_malloc_counter~0.offset)) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (and (= main_~dev1~0.base 0) (= main_~dev1~0.offset 0)) (not (= |old(~elem~0.offset)| 0))) [2020-10-23 20:34:51,595 INFO L270 CegarLoopResult]: At program point L905(line 905) the Hoare annotation is: (or (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (= |old(~elem~0.offset)| 0)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~elem~0.offset 0) (= |old(~elem~0.base)| ~elem~0.base) (= ~guard_malloc_counter~0.offset 0))) [2020-10-23 20:34:51,596 INFO L270 CegarLoopResult]: At program point L906-1(line 906) the Hoare annotation is: (or (and (= |main_#t~ret39.base| 0) (= |main_#t~ret39.offset| 0)) (and (<= ~guard_malloc_counter~0.offset (+ |old(~guard_malloc_counter~0.offset)| 1)) (<= 1 |main_#t~ret39.offset|) (<= |main_#t~ret39.offset| ~guard_malloc_counter~0.offset) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (= |old(~elem~0.offset)| 0))) [2020-10-23 20:34:51,596 INFO L270 CegarLoopResult]: At program point L907-2(line 907) the Hoare annotation is: (or (and (= main_~dev2~0.offset 0) (= |main_#t~ret40.base| 0) (= main_~dev2~0.base 0) (= |main_#t~ret40.offset| 0)) (and (<= |main_#t~ret40.offset| 2) (<= main_~dev2~0.offset 2) (<= 1 main_~dev1~0.offset) (= ~elem~0.offset 0) (<= 2 |main_#t~ret40.offset|) (= |old(~elem~0.base)| ~elem~0.base) (<= (+ main_~dev1~0.offset 1) main_~dev2~0.offset) (<= 1 ~guard_malloc_counter~0.offset)) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (and (= main_~dev1~0.base 0) (= main_~dev1~0.offset 0)) (not (= |old(~elem~0.offset)| 0))) [2020-10-23 20:34:51,596 INFO L270 CegarLoopResult]: At program point L906-2(line 906) the Hoare annotation is: (or (and (= main_~dev1~0.base 0) (= |main_#t~ret39.base| 0) (= main_~dev1~0.offset 0) (= |main_#t~ret39.offset| 0)) (and (<= ~guard_malloc_counter~0.offset (+ |old(~guard_malloc_counter~0.offset)| 1)) (<= 1 |main_#t~ret39.offset|) (<= 1 main_~dev1~0.offset) (<= main_~dev1~0.offset ~guard_malloc_counter~0.offset) (<= |main_#t~ret39.offset| ~guard_malloc_counter~0.offset) (= |old(~elem~0.base)| ~elem~0.base) (= |old(~elem~0.offset)| ~elem~0.offset)) (not (= |old(~guard_malloc_counter~0.offset)| 0)) (not (= |old(~elem~0.offset)| 0))) [2020-10-23 20:34:51,596 INFO L270 CegarLoopResult]: At program point __getMemoryENTRY(lines 871 878) the Hoare annotation is: (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|)) (let ((.cse0 (not (= |__getMemory_#in~size| 8)))) (and (or .cse0 (not (<= 1 |old(~guard_malloc_counter~0.offset)|))) (or .cse0 (not (= |old(~guard_malloc_counter~0.offset)| 0))))) (not (= ~elem~0.offset 0))) [2020-10-23 20:34:51,596 INFO L270 CegarLoopResult]: At program point __getMemoryEXIT(lines 871 878) the Hoare annotation is: (let ((.cse2 (= 8 __getMemory_~size))) (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (let ((.cse0 (not (= |__getMemory_#in~size| 8)))) (and (or .cse0 (not (<= 1 |old(~guard_malloc_counter~0.offset)|))) (or .cse0 (not (= |old(~guard_malloc_counter~0.offset)| 0))))) (let ((.cse1 (+ |old(~guard_malloc_counter~0.offset)| 1))) (and (<= ~guard_malloc_counter~0.offset .cse1) (<= .cse1 ~guard_malloc_counter~0.offset) (<= .cse1 |__getMemory_#res.offset|) .cse2 (<= |__getMemory_#res.offset| .cse1))) (and (<= |__getMemory_#res.offset| 0) (<= |__getMemory_#res.base| 0) .cse2 (<= 0 |__getMemory_#res.offset|) (<= 0 |__getMemory_#res.base|)) (not (= ~elem~0.offset 0)))) [2020-10-23 20:34:51,596 INFO L270 CegarLoopResult]: At program point __getMemoryFINAL(lines 871 878) the Hoare annotation is: (let ((.cse2 (= 8 __getMemory_~size))) (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (let ((.cse0 (not (= |__getMemory_#in~size| 8)))) (and (or .cse0 (not (<= 1 |old(~guard_malloc_counter~0.offset)|))) (or .cse0 (not (= |old(~guard_malloc_counter~0.offset)| 0))))) (let ((.cse1 (+ |old(~guard_malloc_counter~0.offset)| 1))) (and (<= ~guard_malloc_counter~0.offset .cse1) (<= .cse1 ~guard_malloc_counter~0.offset) (<= .cse1 |__getMemory_#res.offset|) .cse2 (<= |__getMemory_#res.offset| .cse1))) (and (<= |__getMemory_#res.offset| 0) (<= |__getMemory_#res.base| 0) .cse2 (<= 0 |__getMemory_#res.offset|) (<= 0 |__getMemory_#res.base|)) (not (= ~elem~0.offset 0)))) [2020-10-23 20:34:51,597 INFO L270 CegarLoopResult]: At program point L877(line 877) the Hoare annotation is: (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (let ((.cse0 (+ |old(~guard_malloc_counter~0.offset)| 1))) (and (<= ~guard_malloc_counter~0.offset .cse0) (<= .cse0 ~guard_malloc_counter~0.offset) (= 8 __getMemory_~size))) (let ((.cse1 (not (= |__getMemory_#in~size| 8)))) (and (or .cse1 (not (<= 1 |old(~guard_malloc_counter~0.offset)|))) (or .cse1 (not (= |old(~guard_malloc_counter~0.offset)| 0))))) (not (= ~elem~0.offset 0))) [2020-10-23 20:34:51,597 INFO L270 CegarLoopResult]: At program point L876(line 876) the Hoare annotation is: (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (let ((.cse0 (not (= |__getMemory_#in~size| 8)))) (and (or .cse0 (not (<= 1 |old(~guard_malloc_counter~0.offset)|))) (or .cse0 (not (= |old(~guard_malloc_counter~0.offset)| 0))))) (= 8 __getMemory_~size) (not (= ~elem~0.offset 0))) [2020-10-23 20:34:51,597 INFO L270 CegarLoopResult]: At program point L875(line 875) the Hoare annotation is: (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (let ((.cse0 (+ |old(~guard_malloc_counter~0.offset)| 1))) (and (<= ~guard_malloc_counter~0.offset .cse0) (<= .cse0 ~guard_malloc_counter~0.offset) (= 8 __getMemory_~size))) (let ((.cse1 (not (= |__getMemory_#in~size| 8)))) (and (or .cse1 (not (<= 1 |old(~guard_malloc_counter~0.offset)|))) (or .cse1 (not (= |old(~guard_malloc_counter~0.offset)| 0))))) (not (= ~elem~0.offset 0))) [2020-10-23 20:34:51,597 INFO L270 CegarLoopResult]: At program point L874(line 874) the Hoare annotation is: (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (let ((.cse0 (not (= |__getMemory_#in~size| 8)))) (and (or .cse0 (not (<= 1 |old(~guard_malloc_counter~0.offset)|))) (or .cse0 (not (= |old(~guard_malloc_counter~0.offset)| 0))))) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= |__getMemory_#t~post35.offset| |old(~guard_malloc_counter~0.offset)|) (= 8 __getMemory_~size)) (not (= ~elem~0.offset 0))) [2020-10-23 20:34:51,597 INFO L270 CegarLoopResult]: At program point L875-1(lines 875 876) the Hoare annotation is: (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (let ((.cse0 (+ |old(~guard_malloc_counter~0.offset)| 1))) (and (<= ~guard_malloc_counter~0.offset .cse0) (<= .cse0 ~guard_malloc_counter~0.offset) (= 8 __getMemory_~size))) (let ((.cse1 (not (= |__getMemory_#in~size| 8)))) (and (or .cse1 (not (<= 1 |old(~guard_malloc_counter~0.offset)|))) (or .cse1 (not (= |old(~guard_malloc_counter~0.offset)| 0))))) (not (= ~elem~0.offset 0))) [2020-10-23 20:34:51,597 INFO L270 CegarLoopResult]: At program point L873(line 873) the Hoare annotation is: (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (let ((.cse0 (not (= |__getMemory_#in~size| 8)))) (and (or .cse0 (not (<= 1 |old(~guard_malloc_counter~0.offset)|))) (or .cse0 (not (= |old(~guard_malloc_counter~0.offset)| 0))))) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= 8 __getMemory_~size)) (not (= ~elem~0.offset 0))) [2020-10-23 20:34:51,598 INFO L270 CegarLoopResult]: At program point L874-1(line 874) the Hoare annotation is: (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (let ((.cse0 (+ |old(~guard_malloc_counter~0.offset)| 1))) (and (<= ~guard_malloc_counter~0.offset .cse0) (<= .cse0 ~guard_malloc_counter~0.offset) (= |__getMemory_#t~post35.offset| |old(~guard_malloc_counter~0.offset)|) (= 8 __getMemory_~size))) (let ((.cse1 (not (= |__getMemory_#in~size| 8)))) (and (or .cse1 (not (<= 1 |old(~guard_malloc_counter~0.offset)|))) (or .cse1 (not (= |old(~guard_malloc_counter~0.offset)| 0))))) (not (= ~elem~0.offset 0))) [2020-10-23 20:34:51,598 INFO L270 CegarLoopResult]: At program point L875-2(line 875) the Hoare annotation is: (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (let ((.cse0 (not (= |__getMemory_#in~size| 8)))) (and (or .cse0 (not (<= 1 |old(~guard_malloc_counter~0.offset)|))) (or .cse0 (not (= |old(~guard_malloc_counter~0.offset)| 0))))) (= 8 __getMemory_~size) (not (= ~elem~0.offset 0))) [2020-10-23 20:34:51,598 INFO L270 CegarLoopResult]: At program point L875-3(line 875) the Hoare annotation is: (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (let ((.cse0 (+ |old(~guard_malloc_counter~0.offset)| 1))) (and (<= ~guard_malloc_counter~0.offset .cse0) (<= .cse0 ~guard_malloc_counter~0.offset) (= 8 __getMemory_~size))) (let ((.cse1 (not (= |__getMemory_#in~size| 8)))) (and (or .cse1 (not (<= 1 |old(~guard_malloc_counter~0.offset)|))) (or .cse1 (not (= |old(~guard_malloc_counter~0.offset)| 0))))) (not (= ~elem~0.offset 0))) [2020-10-23 20:34:51,598 INFO L270 CegarLoopResult]: At program point L873-2(line 873) the Hoare annotation is: (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (let ((.cse0 (not (= |__getMemory_#in~size| 8)))) (and (or .cse0 (not (<= 1 |old(~guard_malloc_counter~0.offset)|))) (or .cse0 (not (= |old(~guard_malloc_counter~0.offset)| 0))))) (not (= ~elem~0.offset 0))) [2020-10-23 20:34:51,598 INFO L270 CegarLoopResult]: At program point L873-3(line 873) the Hoare annotation is: (or (not (<= |old(~guard_malloc_counter~0.offset)| 1)) (let ((.cse0 (not (= |__getMemory_#in~size| 8)))) (and (or .cse0 (not (<= 1 |old(~guard_malloc_counter~0.offset)|))) (or .cse0 (not (= |old(~guard_malloc_counter~0.offset)| 0))))) (and (= ~guard_malloc_counter~0.base |old(~guard_malloc_counter~0.base)|) (= ~guard_malloc_counter~0.offset |old(~guard_malloc_counter~0.offset)|) (= 8 __getMemory_~size)) (not (= ~elem~0.offset 0))) [2020-10-23 20:34:51,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:34:51 BoogieIcfgContainer [2020-10-23 20:34:51,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:34:51,647 INFO L168 Benchmark]: Toolchain (without parser) took 27829.02 ms. Allocated memory was 159.4 MB in the beginning and 332.4 MB in the end (delta: 173.0 MB). Free memory was 134.9 MB in the beginning and 132.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 196.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:51,647 INFO L168 Benchmark]: CDTParser took 1.11 ms. Allocated memory is still 125.8 MB. Free memory was 102.5 MB in the beginning and 102.5 MB in the end (delta: 69.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:34:51,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.77 ms. Allocated memory is still 159.4 MB. Free memory was 134.2 MB in the beginning and 110.2 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:51,648 INFO L168 Benchmark]: Boogie Preprocessor took 185.07 ms. Allocated memory is still 159.4 MB. Free memory was 110.2 MB in the beginning and 141.6 MB in the end (delta: -31.4 MB). Peak memory consumption was 3.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:51,649 INFO L168 Benchmark]: RCFGBuilder took 783.19 ms. Allocated memory is still 159.4 MB. Free memory was 141.6 MB in the beginning and 139.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 47.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:51,652 INFO L168 Benchmark]: TraceAbstraction took 26208.67 ms. Allocated memory was 159.4 MB in the beginning and 332.4 MB in the end (delta: 173.0 MB). Free memory was 139.4 MB in the beginning and 132.1 MB in the end (delta: 7.3 MB). Peak memory consumption was 199.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:51,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11 ms. Allocated memory is still 125.8 MB. Free memory was 102.5 MB in the beginning and 102.5 MB in the end (delta: 69.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 640.77 ms. Allocated memory is still 159.4 MB. Free memory was 134.2 MB in the beginning and 110.2 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 185.07 ms. Allocated memory is still 159.4 MB. Free memory was 110.2 MB in the beginning and 141.6 MB in the end (delta: -31.4 MB). Peak memory consumption was 3.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 783.19 ms. Allocated memory is still 159.4 MB. Free memory was 141.6 MB in the beginning and 139.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 47.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26208.67 ms. Allocated memory was 159.4 MB in the beginning and 332.4 MB in the end (delta: 173.0 MB). Free memory was 139.4 MB in the beginning and 132.1 MB in the end (delta: 7.3 MB). Peak memory consumption was 199.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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 - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 880]: Procedure Contract for my_malloc Derived contract for procedure my_malloc: (!(\old(size) == 8) || size == 8) && ((((!(\old(guard_malloc_counter) <= 1) || (((0 <= \result && \result <= 0) && 0 <= \result) && \result <= 0)) || ((!(1 <= \old(guard_malloc_counter)) || !(\old(size) == 8)) && (!(\old(guard_malloc_counter) == 0) || !(\old(size) == 8)))) || !(elem == 0)) || ((guard_malloc_counter <= \old(guard_malloc_counter) + 1 && \result <= guard_malloc_counter) && \old(guard_malloc_counter) + 1 <= \result)) - ProcedureContractResult [Line: 897]: Procedure Contract for list_del Derived contract for procedure list_del: (!(1 <= guard_malloc_counter) || elem == 0) || (((((!(\old(elem) == entry) || !(entry == elem)) && \old(elem) == elem) && entry == entry) && \old(elem) == elem) && entry == entry) - ProcedureContractResult [Line: 6]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 891]: Procedure Contract for list_add Derived contract for procedure list_add: (((((!(1 <= guard_malloc_counter) || !(1 <= new)) || !(\old(elem) == 0)) || (elem == 0 && \old(elem) == elem)) || ((((new == new && elem == new) && elem == new) && new == new) && 1 <= guard_malloc_counter)) && (((!(1 <= guard_malloc_counter) || !(new + 1 <= \old(elem))) || (((new == new && new == new) && \old(elem) == elem) && \old(elem) == elem)) || ((((new == new && elem == new) && elem == new) && new == new) && 1 <= guard_malloc_counter))) && ((((new == new && new == new) || !(1 <= guard_malloc_counter)) || !(2 <= new)) || !(\old(elem) == 0)) - ProcedureContractResult [Line: 904]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 871]: Procedure Contract for __getMemory Derived contract for procedure __getMemory: (((!(\old(guard_malloc_counter) <= 1) || ((!(\old(size) == 8) || !(1 <= \old(guard_malloc_counter))) && (!(\old(size) == 8) || !(\old(guard_malloc_counter) == 0)))) || ((((guard_malloc_counter <= \old(guard_malloc_counter) + 1 && \old(guard_malloc_counter) + 1 <= guard_malloc_counter) && \old(guard_malloc_counter) + 1 <= \result) && 8 == size) && \result <= \old(guard_malloc_counter) + 1)) || ((((\result <= 0 && \result <= 0) && 8 == size) && 0 <= \result) && 0 <= \result)) || !(elem == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.2s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 545 SDtfs, 922 SDslu, 2459 SDs, 0 SdLazy, 5780 SolverSat, 388 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 376 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1452 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 45 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 79 LocationsWithAnnotation, 378 PreInvPairs, 622 NumberOfFragments, 2600 HoareAnnotationTreeSize, 378 FomulaSimplifications, 25223 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 79 FomulaSimplificationsInter, 8535 FormulaSimplificationTreeSizeReductionInter, 7.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...