/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/list-ext2-properties/simple_and_skiplist_2lvl-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 16:26:00,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 16:26:00,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 16:26:00,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 16:26:00,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 16:26:00,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 16:26:00,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 16:26:00,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 16:26:00,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 16:26:00,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 16:26:00,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 16:26:00,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 16:26:00,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 16:26:00,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 16:26:00,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 16:26:00,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 16:26:00,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 16:26:00,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 16:26:00,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 16:26:00,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 16:26:00,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 16:26:00,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 16:26:00,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 16:26:00,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 16:26:00,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 16:26:00,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 16:26:00,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 16:26:00,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 16:26:00,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 16:26:00,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 16:26:00,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 16:26:00,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 16:26:00,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 16:26:00,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 16:26:00,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 16:26:00,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 16:26:00,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 16:26:00,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 16:26:00,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 16:26:00,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 16:26:00,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 16:26:00,178 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 16:26:00,187 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 16:26:00,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 16:26:00,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 16:26:00,189 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 16:26:00,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 16:26:00,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 16:26:00,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 16:26:00,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 16:26:00,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 16:26:00,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 16:26:00,190 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 16:26:00,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 16:26:00,190 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 16:26:00,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 16:26:00,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 16:26:00,191 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 16:26:00,191 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 16:26:00,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 16:26:00,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 16:26:00,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 16:26:00,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 16:26:00,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 16:26:00,192 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 16:26:00,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 16:26:00,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 16:26:00,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 16:26:00,486 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 16:26:00,487 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 16:26:00,488 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext2-properties/simple_and_skiplist_2lvl-1.i [2020-07-08 16:26:00,556 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb741e3e3/0f6c4bd507fa4901be4fa8d9f5defda5/FLAG8c3866d53 [2020-07-08 16:26:01,088 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 16:26:01,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext2-properties/simple_and_skiplist_2lvl-1.i [2020-07-08 16:26:01,101 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb741e3e3/0f6c4bd507fa4901be4fa8d9f5defda5/FLAG8c3866d53 [2020-07-08 16:26:01,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb741e3e3/0f6c4bd507fa4901be4fa8d9f5defda5 [2020-07-08 16:26:01,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 16:26:01,452 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 16:26:01,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 16:26:01,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 16:26:01,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 16:26:01,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:26:01" (1/1) ... [2020-07-08 16:26:01,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23660af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:01, skipping insertion in model container [2020-07-08 16:26:01,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:26:01" (1/1) ... [2020-07-08 16:26:01,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 16:26:01,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 16:26:02,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:26:02,023 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 16:26:02,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:26:02,158 INFO L208 MainTranslator]: Completed translation [2020-07-08 16:26:02,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:02 WrapperNode [2020-07-08 16:26:02,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 16:26:02,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 16:26:02,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 16:26:02,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 16:26:02,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:02" (1/1) ... [2020-07-08 16:26:02,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:02" (1/1) ... [2020-07-08 16:26:02,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:02" (1/1) ... [2020-07-08 16:26:02,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:02" (1/1) ... [2020-07-08 16:26:02,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:02" (1/1) ... [2020-07-08 16:26:02,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:02" (1/1) ... [2020-07-08 16:26:02,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:02" (1/1) ... [2020-07-08 16:26:02,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 16:26:02,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 16:26:02,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 16:26:02,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 16:26:02,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 16:26:02,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 16:26:02,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 16:26:02,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-08 16:26:02,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-08 16:26:02,313 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die [2020-07-08 16:26:02,313 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sl_with_head_and_tail [2020-07-08 16:26:02,314 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_random_insert [2020-07-08 16:26:02,314 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_sl [2020-07-08 16:26:02,314 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-07-08 16:26:02,314 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 16:26:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 16:26:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 16:26:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-08 16:26:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-08 16:26:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-08 16:26:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-08 16:26:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-08 16:26:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-08 16:26:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-08 16:26:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-08 16:26:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-08 16:26:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-08 16:26:02,316 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-08 16:26:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-08 16:26:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-08 16:26:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-08 16:26:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-08 16:26:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-08 16:26:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-08 16:26:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-08 16:26:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-08 16:26:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-08 16:26:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-08 16:26:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-08 16:26:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-08 16:26:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-08 16:26:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-08 16:26:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-08 16:26:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-08 16:26:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-08 16:26:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-08 16:26:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-08 16:26:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-08 16:26:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-08 16:26:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-08 16:26:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-08 16:26:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-08 16:26:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-08 16:26:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-08 16:26:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-08 16:26:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-08 16:26:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-08 16:26:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-08 16:26:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-08 16:26:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-08 16:26:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-08 16:26:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-08 16:26:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-08 16:26:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-08 16:26:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-08 16:26:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-08 16:26:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-08 16:26:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-08 16:26:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-08 16:26:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-08 16:26:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-08 16:26:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-08 16:26:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-08 16:26:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-08 16:26:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-08 16:26:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-08 16:26:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-08 16:26:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-08 16:26:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 16:26:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-08 16:26:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-08 16:26:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-08 16:26:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-08 16:26:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-08 16:26:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-08 16:26:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-08 16:26:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-08 16:26:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-08 16:26:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-08 16:26:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-08 16:26:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-08 16:26:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-08 16:26:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-08 16:26:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-08 16:26:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-08 16:26:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-08 16:26:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-08 16:26:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-08 16:26:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-08 16:26:02,328 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-08 16:26:02,328 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-08 16:26:02,328 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-08 16:26:02,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-08 16:26:02,328 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-08 16:26:02,328 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-08 16:26:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-08 16:26:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-08 16:26:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-08 16:26:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-08 16:26:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-08 16:26:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-08 16:26:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-08 16:26:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-08 16:26:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-08 16:26:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-08 16:26:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-08 16:26:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-08 16:26:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-08 16:26:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-08 16:26:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-08 16:26:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-08 16:26:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-08 16:26:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die [2020-07-08 16:26:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-08 16:26:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure create_sl_with_head_and_tail [2020-07-08 16:26:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-08 16:26:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-08 16:26:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure sl_random_insert [2020-07-08 16:26:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_sl [2020-07-08 16:26:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 16:26:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-07-08 16:26:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 16:26:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 16:26:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 16:26:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 16:26:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 16:26:02,707 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-07-08 16:26:03,289 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 16:26:03,290 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-08 16:26:03,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:26:03 BoogieIcfgContainer [2020-07-08 16:26:03,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 16:26:03,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 16:26:03,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 16:26:03,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 16:26:03,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 04:26:01" (1/3) ... [2020-07-08 16:26:03,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3d2be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:26:03, skipping insertion in model container [2020-07-08 16:26:03,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:26:02" (2/3) ... [2020-07-08 16:26:03,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3d2be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:26:03, skipping insertion in model container [2020-07-08 16:26:03,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:26:03" (3/3) ... [2020-07-08 16:26:03,304 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_and_skiplist_2lvl-1.i [2020-07-08 16:26:03,316 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 16:26:03,325 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 16:26:03,340 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 16:26:03,365 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 16:26:03,365 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 16:26:03,365 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 16:26:03,366 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 16:26:03,366 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 16:26:03,367 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 16:26:03,367 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 16:26:03,367 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 16:26:03,388 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2020-07-08 16:26:03,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-08 16:26:03,401 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:26:03,402 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] [2020-07-08 16:26:03,403 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:26:03,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:26:03,410 INFO L82 PathProgramCache]: Analyzing trace with hash -648190388, now seen corresponding path program 1 times [2020-07-08 16:26:03,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:26:03,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365816776] [2020-07-08 16:26:03,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:26:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:03,674 INFO L280 TraceCheckUtils]: 0: Hoare triple {167#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {160#true} is VALID [2020-07-08 16:26:03,674 INFO L280 TraceCheckUtils]: 1: Hoare triple {160#true} #valid := #valid[0 := 0]; {160#true} is VALID [2020-07-08 16:26:03,675 INFO L280 TraceCheckUtils]: 2: Hoare triple {160#true} assume 0 < #StackHeapBarrier; {160#true} is VALID [2020-07-08 16:26:03,675 INFO L280 TraceCheckUtils]: 3: Hoare triple {160#true} assume true; {160#true} is VALID [2020-07-08 16:26:03,676 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {160#true} {160#true} #274#return; {160#true} is VALID [2020-07-08 16:26:03,679 INFO L263 TraceCheckUtils]: 0: Hoare triple {160#true} call ULTIMATE.init(); {167#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:26:03,680 INFO L280 TraceCheckUtils]: 1: Hoare triple {167#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {160#true} is VALID [2020-07-08 16:26:03,680 INFO L280 TraceCheckUtils]: 2: Hoare triple {160#true} #valid := #valid[0 := 0]; {160#true} is VALID [2020-07-08 16:26:03,681 INFO L280 TraceCheckUtils]: 3: Hoare triple {160#true} assume 0 < #StackHeapBarrier; {160#true} is VALID [2020-07-08 16:26:03,681 INFO L280 TraceCheckUtils]: 4: Hoare triple {160#true} assume true; {160#true} is VALID [2020-07-08 16:26:03,681 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {160#true} {160#true} #274#return; {160#true} is VALID [2020-07-08 16:26:03,682 INFO L263 TraceCheckUtils]: 6: Hoare triple {160#true} call #t~ret38 := main(); {160#true} is VALID [2020-07-08 16:26:03,682 INFO L280 TraceCheckUtils]: 7: Hoare triple {160#true} SUMMARY for call #t~malloc30.base, #t~malloc30.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {160#true} is VALID [2020-07-08 16:26:03,682 INFO L280 TraceCheckUtils]: 8: Hoare triple {160#true} ~a~0.base, ~a~0.offset := #t~malloc30.base, #t~malloc30.offset; {160#true} is VALID [2020-07-08 16:26:03,683 INFO L280 TraceCheckUtils]: 9: Hoare triple {160#true} assume !(~a~0.base == 0 && ~a~0.offset == 0); {160#true} is VALID [2020-07-08 16:26:03,683 INFO L280 TraceCheckUtils]: 10: Hoare triple {160#true} havoc ~t~0.base, ~t~0.offset; {160#true} is VALID [2020-07-08 16:26:03,683 INFO L280 TraceCheckUtils]: 11: Hoare triple {160#true} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {160#true} is VALID [2020-07-08 16:26:03,684 INFO L280 TraceCheckUtils]: 12: Hoare triple {160#true} SUMMARY for call write~int(2, ~a~0.base, ~a~0.offset, 4); srcloc: L589 {160#true} is VALID [2020-07-08 16:26:03,685 INFO L280 TraceCheckUtils]: 13: Hoare triple {160#true} assume !true; {161#false} is VALID [2020-07-08 16:26:03,685 INFO L280 TraceCheckUtils]: 14: Hoare triple {161#false} SUMMARY for call write~int(2, ~p~0.base, ~p~0.offset, 4); srcloc: L590-5 {161#false} is VALID [2020-07-08 16:26:03,686 INFO L280 TraceCheckUtils]: 15: Hoare triple {161#false} SUMMARY for call write~$Pointer$(0, 0, ~p~0.base, 4 + ~p~0.offset, 4); srcloc: L597 {161#false} is VALID [2020-07-08 16:26:03,686 INFO L280 TraceCheckUtils]: 16: Hoare triple {161#false} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {161#false} is VALID [2020-07-08 16:26:03,686 INFO L280 TraceCheckUtils]: 17: Hoare triple {161#false} assume !!(~p~0.base != 0 || ~p~0.offset != 0); {161#false} is VALID [2020-07-08 16:26:03,687 INFO L280 TraceCheckUtils]: 18: Hoare triple {161#false} SUMMARY for call #t~mem34 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L601 {161#false} is VALID [2020-07-08 16:26:03,687 INFO L280 TraceCheckUtils]: 19: Hoare triple {161#false} assume 2 != #t~mem34; {161#false} is VALID [2020-07-08 16:26:03,687 INFO L280 TraceCheckUtils]: 20: Hoare triple {161#false} havoc #t~mem34; {161#false} is VALID [2020-07-08 16:26:03,688 INFO L280 TraceCheckUtils]: 21: Hoare triple {161#false} assume !false; {161#false} is VALID [2020-07-08 16:26:03,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:26:03,691 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:26:03,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365816776] [2020-07-08 16:26:03,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:26:03,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:26:03,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368448374] [2020-07-08 16:26:03,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-08 16:26:03,707 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:26:03,711 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:26:03,755 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:03,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:26:03,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:26:03,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:26:03,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:26:03,770 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 3 states. [2020-07-08 16:26:04,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:04,697 INFO L93 Difference]: Finished difference Result 299 states and 333 transitions. [2020-07-08 16:26:04,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:26:04,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-07-08 16:26:04,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:26:04,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:26:04,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 333 transitions. [2020-07-08 16:26:04,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:26:04,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 333 transitions. [2020-07-08 16:26:04,747 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 333 transitions. [2020-07-08 16:26:05,160 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 333 edges. 333 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:05,185 INFO L225 Difference]: With dead ends: 299 [2020-07-08 16:26:05,185 INFO L226 Difference]: Without dead ends: 38 [2020-07-08 16:26:05,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:26:05,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-07-08 16:26:05,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-07-08 16:26:05,245 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:26:05,245 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand 38 states. [2020-07-08 16:26:05,246 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-08 16:26:05,247 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-08 16:26:05,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:05,251 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-07-08 16:26:05,252 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-07-08 16:26:05,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:05,253 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:05,253 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-08 16:26:05,253 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-08 16:26:05,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:05,257 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-07-08 16:26:05,257 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-07-08 16:26:05,258 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:05,258 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:05,258 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:26:05,259 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:26:05,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-08 16:26:05,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-07-08 16:26:05,263 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 22 [2020-07-08 16:26:05,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:26:05,263 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-07-08 16:26:05,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:26:05,264 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 38 states and 39 transitions. [2020-07-08 16:26:05,309 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:05,310 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-07-08 16:26:05,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-08 16:26:05,311 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:26:05,311 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] [2020-07-08 16:26:05,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 16:26:05,312 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:26:05,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:26:05,312 INFO L82 PathProgramCache]: Analyzing trace with hash -388732234, now seen corresponding path program 1 times [2020-07-08 16:26:05,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:26:05,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073104076] [2020-07-08 16:26:05,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:26:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:05,515 INFO L280 TraceCheckUtils]: 0: Hoare triple {932#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {920#true} is VALID [2020-07-08 16:26:05,516 INFO L280 TraceCheckUtils]: 1: Hoare triple {920#true} #valid := #valid[0 := 0]; {920#true} is VALID [2020-07-08 16:26:05,516 INFO L280 TraceCheckUtils]: 2: Hoare triple {920#true} assume 0 < #StackHeapBarrier; {920#true} is VALID [2020-07-08 16:26:05,516 INFO L280 TraceCheckUtils]: 3: Hoare triple {920#true} assume true; {920#true} is VALID [2020-07-08 16:26:05,517 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {920#true} {920#true} #274#return; {920#true} is VALID [2020-07-08 16:26:05,518 INFO L263 TraceCheckUtils]: 0: Hoare triple {920#true} call ULTIMATE.init(); {932#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:26:05,518 INFO L280 TraceCheckUtils]: 1: Hoare triple {932#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {920#true} is VALID [2020-07-08 16:26:05,519 INFO L280 TraceCheckUtils]: 2: Hoare triple {920#true} #valid := #valid[0 := 0]; {920#true} is VALID [2020-07-08 16:26:05,519 INFO L280 TraceCheckUtils]: 3: Hoare triple {920#true} assume 0 < #StackHeapBarrier; {920#true} is VALID [2020-07-08 16:26:05,519 INFO L280 TraceCheckUtils]: 4: Hoare triple {920#true} assume true; {920#true} is VALID [2020-07-08 16:26:05,520 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {920#true} {920#true} #274#return; {920#true} is VALID [2020-07-08 16:26:05,520 INFO L263 TraceCheckUtils]: 6: Hoare triple {920#true} call #t~ret38 := main(); {920#true} is VALID [2020-07-08 16:26:05,520 INFO L280 TraceCheckUtils]: 7: Hoare triple {920#true} SUMMARY for call #t~malloc30.base, #t~malloc30.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {920#true} is VALID [2020-07-08 16:26:05,521 INFO L280 TraceCheckUtils]: 8: Hoare triple {920#true} ~a~0.base, ~a~0.offset := #t~malloc30.base, #t~malloc30.offset; {920#true} is VALID [2020-07-08 16:26:05,521 INFO L280 TraceCheckUtils]: 9: Hoare triple {920#true} assume !(~a~0.base == 0 && ~a~0.offset == 0); {920#true} is VALID [2020-07-08 16:26:05,524 INFO L280 TraceCheckUtils]: 10: Hoare triple {920#true} havoc ~t~0.base, ~t~0.offset; {920#true} is VALID [2020-07-08 16:26:05,525 INFO L280 TraceCheckUtils]: 11: Hoare triple {920#true} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {927#(and (= main_~a~0.base main_~p~0.base) (= main_~a~0.offset main_~p~0.offset))} is VALID [2020-07-08 16:26:05,530 INFO L280 TraceCheckUtils]: 12: Hoare triple {927#(and (= main_~a~0.base main_~p~0.base) (= main_~a~0.offset main_~p~0.offset))} SUMMARY for call write~int(2, ~a~0.base, ~a~0.offset, 4); srcloc: L589 {927#(and (= main_~a~0.base main_~p~0.base) (= main_~a~0.offset main_~p~0.offset))} is VALID [2020-07-08 16:26:05,531 INFO L280 TraceCheckUtils]: 13: Hoare triple {927#(and (= main_~a~0.base main_~p~0.base) (= main_~a~0.offset main_~p~0.offset))} assume -2147483648 <= #t~nondet31 && #t~nondet31 <= 2147483647; {927#(and (= main_~a~0.base main_~p~0.base) (= main_~a~0.offset main_~p~0.offset))} is VALID [2020-07-08 16:26:05,531 INFO L280 TraceCheckUtils]: 14: Hoare triple {927#(and (= main_~a~0.base main_~p~0.base) (= main_~a~0.offset main_~p~0.offset))} assume !(0 != #t~nondet31); {927#(and (= main_~a~0.base main_~p~0.base) (= main_~a~0.offset main_~p~0.offset))} is VALID [2020-07-08 16:26:05,532 INFO L280 TraceCheckUtils]: 15: Hoare triple {927#(and (= main_~a~0.base main_~p~0.base) (= main_~a~0.offset main_~p~0.offset))} havoc #t~nondet31; {927#(and (= main_~a~0.base main_~p~0.base) (= main_~a~0.offset main_~p~0.offset))} is VALID [2020-07-08 16:26:05,534 INFO L280 TraceCheckUtils]: 16: Hoare triple {927#(and (= main_~a~0.base main_~p~0.base) (= main_~a~0.offset main_~p~0.offset))} SUMMARY for call write~int(2, ~p~0.base, ~p~0.offset, 4); srcloc: L590-5 {928#(and (= main_~a~0.base main_~p~0.base) (= 2 (select (select |#memory_int| main_~p~0.base) main_~p~0.offset)) (= main_~a~0.offset main_~p~0.offset))} is VALID [2020-07-08 16:26:05,536 INFO L280 TraceCheckUtils]: 17: Hoare triple {928#(and (= main_~a~0.base main_~p~0.base) (= 2 (select (select |#memory_int| main_~p~0.base) main_~p~0.offset)) (= main_~a~0.offset main_~p~0.offset))} SUMMARY for call write~$Pointer$(0, 0, ~p~0.base, 4 + ~p~0.offset, 4); srcloc: L597 {929#(= 2 (select (select |#memory_int| main_~a~0.base) main_~a~0.offset))} is VALID [2020-07-08 16:26:05,537 INFO L280 TraceCheckUtils]: 18: Hoare triple {929#(= 2 (select (select |#memory_int| main_~a~0.base) main_~a~0.offset))} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {930#(= 2 (select (select |#memory_int| main_~p~0.base) main_~p~0.offset))} is VALID [2020-07-08 16:26:05,540 INFO L280 TraceCheckUtils]: 19: Hoare triple {930#(= 2 (select (select |#memory_int| main_~p~0.base) main_~p~0.offset))} assume !!(~p~0.base != 0 || ~p~0.offset != 0); {930#(= 2 (select (select |#memory_int| main_~p~0.base) main_~p~0.offset))} is VALID [2020-07-08 16:26:05,541 INFO L280 TraceCheckUtils]: 20: Hoare triple {930#(= 2 (select (select |#memory_int| main_~p~0.base) main_~p~0.offset))} SUMMARY for call #t~mem34 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L601 {931#(= |main_#t~mem34| 2)} is VALID [2020-07-08 16:26:05,542 INFO L280 TraceCheckUtils]: 21: Hoare triple {931#(= |main_#t~mem34| 2)} assume 2 != #t~mem34; {921#false} is VALID [2020-07-08 16:26:05,542 INFO L280 TraceCheckUtils]: 22: Hoare triple {921#false} havoc #t~mem34; {921#false} is VALID [2020-07-08 16:26:05,543 INFO L280 TraceCheckUtils]: 23: Hoare triple {921#false} assume !false; {921#false} is VALID [2020-07-08 16:26:05,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:26:05,548 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:26:05,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073104076] [2020-07-08 16:26:05,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:26:05,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-08 16:26:05,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792645772] [2020-07-08 16:26:05,551 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-07-08 16:26:05,551 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:26:05,551 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-08 16:26:05,585 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:05,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-08 16:26:05,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:26:05,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-08 16:26:05,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-08 16:26:05,587 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 8 states. [2020-07-08 16:26:06,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:06,214 INFO L93 Difference]: Finished difference Result 80 states and 82 transitions. [2020-07-08 16:26:06,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-08 16:26:06,215 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-07-08 16:26:06,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:26:06,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 16:26:06,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 82 transitions. [2020-07-08 16:26:06,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 16:26:06,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 82 transitions. [2020-07-08 16:26:06,221 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 82 transitions. [2020-07-08 16:26:06,306 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 82 edges. 82 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:06,310 INFO L225 Difference]: With dead ends: 80 [2020-07-08 16:26:06,310 INFO L226 Difference]: Without dead ends: 77 [2020-07-08 16:26:06,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-07-08 16:26:06,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-07-08 16:26:06,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 47. [2020-07-08 16:26:06,370 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:26:06,370 INFO L82 GeneralOperation]: Start isEquivalent. First operand 77 states. Second operand 47 states. [2020-07-08 16:26:06,370 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 47 states. [2020-07-08 16:26:06,370 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 47 states. [2020-07-08 16:26:06,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:06,374 INFO L93 Difference]: Finished difference Result 77 states and 79 transitions. [2020-07-08 16:26:06,375 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2020-07-08 16:26:06,376 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:06,376 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:06,376 INFO L74 IsIncluded]: Start isIncluded. First operand 47 states. Second operand 77 states. [2020-07-08 16:26:06,376 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 77 states. [2020-07-08 16:26:06,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:06,380 INFO L93 Difference]: Finished difference Result 77 states and 79 transitions. [2020-07-08 16:26:06,380 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2020-07-08 16:26:06,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:06,381 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:06,381 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:26:06,381 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:26:06,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-07-08 16:26:06,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-07-08 16:26:06,384 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 24 [2020-07-08 16:26:06,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:26:06,384 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-07-08 16:26:06,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-08 16:26:06,385 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 47 states and 49 transitions. [2020-07-08 16:26:06,437 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:06,437 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-07-08 16:26:06,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-08 16:26:06,438 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:26:06,438 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:26:06,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 16:26:06,439 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:26:06,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:26:06,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1490085289, now seen corresponding path program 1 times [2020-07-08 16:26:06,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:26:06,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739722930] [2020-07-08 16:26:06,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:26:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:06,829 INFO L280 TraceCheckUtils]: 0: Hoare triple {1363#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1349#true} is VALID [2020-07-08 16:26:06,830 INFO L280 TraceCheckUtils]: 1: Hoare triple {1349#true} #valid := #valid[0 := 0]; {1349#true} is VALID [2020-07-08 16:26:06,830 INFO L280 TraceCheckUtils]: 2: Hoare triple {1349#true} assume 0 < #StackHeapBarrier; {1349#true} is VALID [2020-07-08 16:26:06,830 INFO L280 TraceCheckUtils]: 3: Hoare triple {1349#true} assume true; {1349#true} is VALID [2020-07-08 16:26:06,830 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1349#true} {1349#true} #274#return; {1349#true} is VALID [2020-07-08 16:26:06,832 INFO L263 TraceCheckUtils]: 0: Hoare triple {1349#true} call ULTIMATE.init(); {1363#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:26:06,832 INFO L280 TraceCheckUtils]: 1: Hoare triple {1363#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1349#true} is VALID [2020-07-08 16:26:06,833 INFO L280 TraceCheckUtils]: 2: Hoare triple {1349#true} #valid := #valid[0 := 0]; {1349#true} is VALID [2020-07-08 16:26:06,833 INFO L280 TraceCheckUtils]: 3: Hoare triple {1349#true} assume 0 < #StackHeapBarrier; {1349#true} is VALID [2020-07-08 16:26:06,833 INFO L280 TraceCheckUtils]: 4: Hoare triple {1349#true} assume true; {1349#true} is VALID [2020-07-08 16:26:06,836 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1349#true} {1349#true} #274#return; {1349#true} is VALID [2020-07-08 16:26:06,836 INFO L263 TraceCheckUtils]: 6: Hoare triple {1349#true} call #t~ret38 := main(); {1349#true} is VALID [2020-07-08 16:26:06,837 INFO L280 TraceCheckUtils]: 7: Hoare triple {1349#true} SUMMARY for call #t~malloc30.base, #t~malloc30.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {1356#(= 0 |main_#t~malloc30.offset|)} is VALID [2020-07-08 16:26:06,837 INFO L280 TraceCheckUtils]: 8: Hoare triple {1356#(= 0 |main_#t~malloc30.offset|)} ~a~0.base, ~a~0.offset := #t~malloc30.base, #t~malloc30.offset; {1357#(= 0 main_~a~0.offset)} is VALID [2020-07-08 16:26:06,838 INFO L280 TraceCheckUtils]: 9: Hoare triple {1357#(= 0 main_~a~0.offset)} assume !(~a~0.base == 0 && ~a~0.offset == 0); {1357#(= 0 main_~a~0.offset)} is VALID [2020-07-08 16:26:06,838 INFO L280 TraceCheckUtils]: 10: Hoare triple {1357#(= 0 main_~a~0.offset)} havoc ~t~0.base, ~t~0.offset; {1357#(= 0 main_~a~0.offset)} is VALID [2020-07-08 16:26:06,839 INFO L280 TraceCheckUtils]: 11: Hoare triple {1357#(= 0 main_~a~0.offset)} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {1358#(and (= main_~a~0.base main_~p~0.base) (= 0 main_~p~0.offset) (= 0 main_~a~0.offset))} is VALID [2020-07-08 16:26:06,841 INFO L280 TraceCheckUtils]: 12: Hoare triple {1358#(and (= main_~a~0.base main_~p~0.base) (= 0 main_~p~0.offset) (= 0 main_~a~0.offset))} SUMMARY for call write~int(2, ~a~0.base, ~a~0.offset, 4); srcloc: L589 {1358#(and (= main_~a~0.base main_~p~0.base) (= 0 main_~p~0.offset) (= 0 main_~a~0.offset))} is VALID [2020-07-08 16:26:06,842 INFO L280 TraceCheckUtils]: 13: Hoare triple {1358#(and (= main_~a~0.base main_~p~0.base) (= 0 main_~p~0.offset) (= 0 main_~a~0.offset))} assume -2147483648 <= #t~nondet31 && #t~nondet31 <= 2147483647; {1358#(and (= main_~a~0.base main_~p~0.base) (= 0 main_~p~0.offset) (= 0 main_~a~0.offset))} is VALID [2020-07-08 16:26:06,842 INFO L280 TraceCheckUtils]: 14: Hoare triple {1358#(and (= main_~a~0.base main_~p~0.base) (= 0 main_~p~0.offset) (= 0 main_~a~0.offset))} assume !(0 != #t~nondet31); {1358#(and (= main_~a~0.base main_~p~0.base) (= 0 main_~p~0.offset) (= 0 main_~a~0.offset))} is VALID [2020-07-08 16:26:06,843 INFO L280 TraceCheckUtils]: 15: Hoare triple {1358#(and (= main_~a~0.base main_~p~0.base) (= 0 main_~p~0.offset) (= 0 main_~a~0.offset))} havoc #t~nondet31; {1358#(and (= main_~a~0.base main_~p~0.base) (= 0 main_~p~0.offset) (= 0 main_~a~0.offset))} is VALID [2020-07-08 16:26:06,844 INFO L280 TraceCheckUtils]: 16: Hoare triple {1358#(and (= main_~a~0.base main_~p~0.base) (= 0 main_~p~0.offset) (= 0 main_~a~0.offset))} SUMMARY for call write~int(2, ~p~0.base, ~p~0.offset, 4); srcloc: L590-5 {1358#(and (= main_~a~0.base main_~p~0.base) (= 0 main_~p~0.offset) (= 0 main_~a~0.offset))} is VALID [2020-07-08 16:26:06,845 INFO L280 TraceCheckUtils]: 17: Hoare triple {1358#(and (= main_~a~0.base main_~p~0.base) (= 0 main_~p~0.offset) (= 0 main_~a~0.offset))} SUMMARY for call write~$Pointer$(0, 0, ~p~0.base, 4 + ~p~0.offset, 4); srcloc: L597 {1359#(and (= 0 (select (select |#memory_$Pointer$.base| main_~a~0.base) 4)) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) 4)) (= 0 main_~a~0.offset))} is VALID [2020-07-08 16:26:06,847 INFO L280 TraceCheckUtils]: 18: Hoare triple {1359#(and (= 0 (select (select |#memory_$Pointer$.base| main_~a~0.base) 4)) (= 0 (select (select |#memory_$Pointer$.offset| main_~a~0.base) 4)) (= 0 main_~a~0.offset))} ~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {1360#(and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 main_~p~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))} is VALID [2020-07-08 16:26:06,848 INFO L280 TraceCheckUtils]: 19: Hoare triple {1360#(and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 main_~p~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))} assume !!(~p~0.base != 0 || ~p~0.offset != 0); {1360#(and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 main_~p~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))} is VALID [2020-07-08 16:26:06,849 INFO L280 TraceCheckUtils]: 20: Hoare triple {1360#(and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 main_~p~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))} SUMMARY for call #t~mem34 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L601 {1360#(and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 main_~p~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))} is VALID [2020-07-08 16:26:06,850 INFO L280 TraceCheckUtils]: 21: Hoare triple {1360#(and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 main_~p~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))} assume !(2 != #t~mem34); {1360#(and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 main_~p~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))} is VALID [2020-07-08 16:26:06,851 INFO L280 TraceCheckUtils]: 22: Hoare triple {1360#(and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 main_~p~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))} havoc #t~mem34; {1360#(and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 main_~p~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))} is VALID [2020-07-08 16:26:06,852 INFO L280 TraceCheckUtils]: 23: Hoare triple {1360#(and (= 0 (select (select |#memory_$Pointer$.base| main_~p~0.base) (+ main_~p~0.offset 4))) (= 0 main_~p~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~p~0.base) (+ main_~p~0.offset 4))))} SUMMARY for call #t~mem35.base, #t~mem35.offset := read~$Pointer$(~p~0.base, 4 + ~p~0.offset, 4); srcloc: L601-5 {1361#(and (= 0 |main_#t~mem35.base|) (= 0 |main_#t~mem35.offset|))} is VALID [2020-07-08 16:26:06,852 INFO L280 TraceCheckUtils]: 24: Hoare triple {1361#(and (= 0 |main_#t~mem35.base|) (= 0 |main_#t~mem35.offset|))} ~p~0.base, ~p~0.offset := #t~mem35.base, #t~mem35.offset; {1362#(and (= 0 main_~p~0.offset) (= 0 main_~p~0.base))} is VALID [2020-07-08 16:26:06,853 INFO L280 TraceCheckUtils]: 25: Hoare triple {1362#(and (= 0 main_~p~0.offset) (= 0 main_~p~0.base))} havoc #t~mem35.base, #t~mem35.offset; {1362#(and (= 0 main_~p~0.offset) (= 0 main_~p~0.base))} is VALID [2020-07-08 16:26:06,855 INFO L280 TraceCheckUtils]: 26: Hoare triple {1362#(and (= 0 main_~p~0.offset) (= 0 main_~p~0.base))} assume !!(~p~0.base != 0 || ~p~0.offset != 0); {1350#false} is VALID [2020-07-08 16:26:06,855 INFO L280 TraceCheckUtils]: 27: Hoare triple {1350#false} SUMMARY for call #t~mem34 := read~int(~p~0.base, ~p~0.offset, 4); srcloc: L601 {1350#false} is VALID [2020-07-08 16:26:06,855 INFO L280 TraceCheckUtils]: 28: Hoare triple {1350#false} assume 2 != #t~mem34; {1350#false} is VALID [2020-07-08 16:26:06,855 INFO L280 TraceCheckUtils]: 29: Hoare triple {1350#false} havoc #t~mem34; {1350#false} is VALID [2020-07-08 16:26:06,856 INFO L280 TraceCheckUtils]: 30: Hoare triple {1350#false} assume !false; {1350#false} is VALID [2020-07-08 16:26:06,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:26:06,859 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:26:06,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1739722930] [2020-07-08 16:26:06,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:26:06,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-08 16:26:06,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691164003] [2020-07-08 16:26:06,861 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-07-08 16:26:06,861 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:26:06,861 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-08 16:26:06,901 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:06,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-08 16:26:06,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:26:06,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-08 16:26:06,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-08 16:26:06,903 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 10 states. [2020-07-08 16:26:07,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:07,667 INFO L93 Difference]: Finished difference Result 79 states and 81 transitions. [2020-07-08 16:26:07,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-08 16:26:07,668 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-07-08 16:26:07,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:26:07,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 16:26:07,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 81 transitions. [2020-07-08 16:26:07,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 16:26:07,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 81 transitions. [2020-07-08 16:26:07,673 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 81 transitions. [2020-07-08 16:26:07,778 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 81 edges. 81 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:07,781 INFO L225 Difference]: With dead ends: 79 [2020-07-08 16:26:07,781 INFO L226 Difference]: Without dead ends: 57 [2020-07-08 16:26:07,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-07-08 16:26:07,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-07-08 16:26:07,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 40. [2020-07-08 16:26:07,867 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:26:07,867 INFO L82 GeneralOperation]: Start isEquivalent. First operand 57 states. Second operand 40 states. [2020-07-08 16:26:07,867 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 40 states. [2020-07-08 16:26:07,867 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 40 states. [2020-07-08 16:26:07,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:07,870 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2020-07-08 16:26:07,870 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-07-08 16:26:07,871 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:07,871 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:07,871 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand 57 states. [2020-07-08 16:26:07,872 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 57 states. [2020-07-08 16:26:07,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:07,874 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2020-07-08 16:26:07,874 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-07-08 16:26:07,875 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:07,875 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:07,875 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:26:07,875 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:26:07,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-08 16:26:07,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-07-08 16:26:07,877 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 31 [2020-07-08 16:26:07,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:26:07,878 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-07-08 16:26:07,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-08 16:26:07,878 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 40 states and 41 transitions. [2020-07-08 16:26:07,949 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:26:07,950 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-07-08 16:26:07,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-08 16:26:07,951 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:26:07,951 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:26:07,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 16:26:07,952 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:26:07,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:26:07,952 INFO L82 PathProgramCache]: Analyzing trace with hash 2115770941, now seen corresponding path program 1 times [2020-07-08 16:26:07,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:26:07,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049538270] [2020-07-08 16:26:07,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:26:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 16:26:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 16:26:08,069 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:26:08,069 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-08 16:26:08,069 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 16:26:08,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-08 16:26:08,089 WARN L170 areAnnotationChecker]: sl_random_insertENTRY has no Hoare annotation [2020-07-08 16:26:08,089 WARN L170 areAnnotationChecker]: create_sl_with_head_and_tailENTRY has no Hoare annotation [2020-07-08 16:26:08,089 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-08 16:26:08,089 WARN L170 areAnnotationChecker]: myexitENTRY has no Hoare annotation [2020-07-08 16:26:08,090 WARN L170 areAnnotationChecker]: __bswap_32ENTRY has no Hoare annotation [2020-07-08 16:26:08,090 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 16:26:08,090 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 16:26:08,090 WARN L170 areAnnotationChecker]: __bswap_64ENTRY has no Hoare annotation [2020-07-08 16:26:08,090 WARN L170 areAnnotationChecker]: destroy_slENTRY has no Hoare annotation [2020-07-08 16:26:08,090 WARN L170 areAnnotationChecker]: alloc_or_dieENTRY has no Hoare annotation [2020-07-08 16:26:08,090 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 16:26:08,090 WARN L170 areAnnotationChecker]: L551 has no Hoare annotation [2020-07-08 16:26:08,090 WARN L170 areAnnotationChecker]: L542 has no Hoare annotation [2020-07-08 16:26:08,091 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 16:26:08,091 WARN L170 areAnnotationChecker]: L578 has no Hoare annotation [2020-07-08 16:26:08,091 WARN L170 areAnnotationChecker]: L178 has no Hoare annotation [2020-07-08 16:26:08,091 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 16:26:08,091 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 16:26:08,091 WARN L170 areAnnotationChecker]: L183 has no Hoare annotation [2020-07-08 16:26:08,091 WARN L170 areAnnotationChecker]: L569 has no Hoare annotation [2020-07-08 16:26:08,091 WARN L170 areAnnotationChecker]: L537 has no Hoare annotation [2020-07-08 16:26:08,091 WARN L170 areAnnotationChecker]: L585 has no Hoare annotation [2020-07-08 16:26:08,092 WARN L170 areAnnotationChecker]: L551-1 has no Hoare annotation [2020-07-08 16:26:08,092 WARN L170 areAnnotationChecker]: L543 has no Hoare annotation [2020-07-08 16:26:08,092 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-08 16:26:08,092 WARN L170 areAnnotationChecker]: L178-1 has no Hoare annotation [2020-07-08 16:26:08,092 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 16:26:08,092 WARN L170 areAnnotationChecker]: L183-1 has no Hoare annotation [2020-07-08 16:26:08,092 WARN L170 areAnnotationChecker]: L573-1 has no Hoare annotation [2020-07-08 16:26:08,092 WARN L170 areAnnotationChecker]: L573-1 has no Hoare annotation [2020-07-08 16:26:08,092 WARN L170 areAnnotationChecker]: L538 has no Hoare annotation [2020-07-08 16:26:08,093 WARN L170 areAnnotationChecker]: L586 has no Hoare annotation [2020-07-08 16:26:08,093 WARN L170 areAnnotationChecker]: L586 has no Hoare annotation [2020-07-08 16:26:08,093 WARN L170 areAnnotationChecker]: L552 has no Hoare annotation [2020-07-08 16:26:08,093 WARN L170 areAnnotationChecker]: L543-1 has no Hoare annotation [2020-07-08 16:26:08,093 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 16:26:08,093 WARN L170 areAnnotationChecker]: __bswap_32FINAL has no Hoare annotation [2020-07-08 16:26:08,093 WARN L170 areAnnotationChecker]: __bswap_64FINAL has no Hoare annotation [2020-07-08 16:26:08,093 WARN L170 areAnnotationChecker]: L570-5 has no Hoare annotation [2020-07-08 16:26:08,093 WARN L170 areAnnotationChecker]: L570-1 has no Hoare annotation [2020-07-08 16:26:08,094 WARN L170 areAnnotationChecker]: L570-1 has no Hoare annotation [2020-07-08 16:26:08,094 WARN L170 areAnnotationChecker]: alloc_or_dieFINAL has no Hoare annotation [2020-07-08 16:26:08,094 WARN L170 areAnnotationChecker]: L586-1 has no Hoare annotation [2020-07-08 16:26:08,094 WARN L170 areAnnotationChecker]: L586-1 has no Hoare annotation [2020-07-08 16:26:08,094 WARN L170 areAnnotationChecker]: L586-3 has no Hoare annotation [2020-07-08 16:26:08,094 WARN L170 areAnnotationChecker]: L553 has no Hoare annotation [2020-07-08 16:26:08,094 WARN L170 areAnnotationChecker]: L543-2 has no Hoare annotation [2020-07-08 16:26:08,094 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 16:26:08,094 WARN L170 areAnnotationChecker]: destroy_slFINAL has no Hoare annotation [2020-07-08 16:26:08,094 WARN L170 areAnnotationChecker]: L570-2 has no Hoare annotation [2020-07-08 16:26:08,094 WARN L170 areAnnotationChecker]: L570-4 has no Hoare annotation [2020-07-08 16:26:08,094 WARN L170 areAnnotationChecker]: L588 has no Hoare annotation [2020-07-08 16:26:08,094 WARN L170 areAnnotationChecker]: L553-1 has no Hoare annotation [2020-07-08 16:26:08,095 WARN L170 areAnnotationChecker]: L544 has no Hoare annotation [2020-07-08 16:26:08,095 WARN L170 areAnnotationChecker]: destroy_slEXIT has no Hoare annotation [2020-07-08 16:26:08,095 WARN L170 areAnnotationChecker]: L571 has no Hoare annotation [2020-07-08 16:26:08,095 WARN L170 areAnnotationChecker]: L589 has no Hoare annotation [2020-07-08 16:26:08,095 WARN L170 areAnnotationChecker]: L553-2 has no Hoare annotation [2020-07-08 16:26:08,095 WARN L170 areAnnotationChecker]: L544-1 has no Hoare annotation [2020-07-08 16:26:08,095 WARN L170 areAnnotationChecker]: L609 has no Hoare annotation [2020-07-08 16:26:08,095 WARN L170 areAnnotationChecker]: L571-1 has no Hoare annotation [2020-07-08 16:26:08,095 WARN L170 areAnnotationChecker]: L590-4 has no Hoare annotation [2020-07-08 16:26:08,095 WARN L170 areAnnotationChecker]: L590-4 has no Hoare annotation [2020-07-08 16:26:08,096 WARN L170 areAnnotationChecker]: L554-17 has no Hoare annotation [2020-07-08 16:26:08,096 WARN L170 areAnnotationChecker]: L554-17 has no Hoare annotation [2020-07-08 16:26:08,096 WARN L170 areAnnotationChecker]: L545 has no Hoare annotation [2020-07-08 16:26:08,096 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 16:26:08,096 WARN L170 areAnnotationChecker]: L571-2 has no Hoare annotation [2020-07-08 16:26:08,096 WARN L170 areAnnotationChecker]: L590-5 has no Hoare annotation [2020-07-08 16:26:08,096 WARN L170 areAnnotationChecker]: L590 has no Hoare annotation [2020-07-08 16:26:08,096 WARN L170 areAnnotationChecker]: L590 has no Hoare annotation [2020-07-08 16:26:08,097 WARN L170 areAnnotationChecker]: L554-18 has no Hoare annotation [2020-07-08 16:26:08,097 WARN L170 areAnnotationChecker]: L554-1 has no Hoare annotation [2020-07-08 16:26:08,097 WARN L170 areAnnotationChecker]: L545-1 has no Hoare annotation [2020-07-08 16:26:08,097 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 16:26:08,097 WARN L170 areAnnotationChecker]: L572 has no Hoare annotation [2020-07-08 16:26:08,097 WARN L170 areAnnotationChecker]: L597 has no Hoare annotation [2020-07-08 16:26:08,097 WARN L170 areAnnotationChecker]: L590-1 has no Hoare annotation [2020-07-08 16:26:08,097 WARN L170 areAnnotationChecker]: L590-3 has no Hoare annotation [2020-07-08 16:26:08,097 WARN L170 areAnnotationChecker]: L557-17 has no Hoare annotation [2020-07-08 16:26:08,098 WARN L170 areAnnotationChecker]: L557-17 has no Hoare annotation [2020-07-08 16:26:08,098 WARN L170 areAnnotationChecker]: L554-2 has no Hoare annotation [2020-07-08 16:26:08,098 WARN L170 areAnnotationChecker]: L545-2 has no Hoare annotation [2020-07-08 16:26:08,098 WARN L170 areAnnotationChecker]: L572-1 has no Hoare annotation [2020-07-08 16:26:08,098 WARN L170 areAnnotationChecker]: L598 has no Hoare annotation [2020-07-08 16:26:08,098 WARN L170 areAnnotationChecker]: L591 has no Hoare annotation [2020-07-08 16:26:08,098 WARN L170 areAnnotationChecker]: L557-18 has no Hoare annotation [2020-07-08 16:26:08,098 WARN L170 areAnnotationChecker]: L557-1 has no Hoare annotation [2020-07-08 16:26:08,098 WARN L170 areAnnotationChecker]: L554-3 has no Hoare annotation [2020-07-08 16:26:08,099 WARN L170 areAnnotationChecker]: L554-3 has no Hoare annotation [2020-07-08 16:26:08,099 WARN L170 areAnnotationChecker]: L545-3 has no Hoare annotation [2020-07-08 16:26:08,099 WARN L170 areAnnotationChecker]: L572-2 has no Hoare annotation [2020-07-08 16:26:08,099 WARN L170 areAnnotationChecker]: L600-2 has no Hoare annotation [2020-07-08 16:26:08,099 WARN L170 areAnnotationChecker]: L600-2 has no Hoare annotation [2020-07-08 16:26:08,099 WARN L170 areAnnotationChecker]: L600-2 has no Hoare annotation [2020-07-08 16:26:08,099 WARN L170 areAnnotationChecker]: L591-1 has no Hoare annotation [2020-07-08 16:26:08,099 WARN L170 areAnnotationChecker]: L559 has no Hoare annotation [2020-07-08 16:26:08,099 WARN L170 areAnnotationChecker]: L557-2 has no Hoare annotation [2020-07-08 16:26:08,100 WARN L170 areAnnotationChecker]: L554-4 has no Hoare annotation [2020-07-08 16:26:08,100 WARN L170 areAnnotationChecker]: L554-7 has no Hoare annotation [2020-07-08 16:26:08,100 WARN L170 areAnnotationChecker]: L554-7 has no Hoare annotation [2020-07-08 16:26:08,100 WARN L170 areAnnotationChecker]: L545-4 has no Hoare annotation [2020-07-08 16:26:08,100 WARN L170 areAnnotationChecker]: L572-3 has no Hoare annotation [2020-07-08 16:26:08,100 WARN L170 areAnnotationChecker]: L600-3 has no Hoare annotation [2020-07-08 16:26:08,100 WARN L170 areAnnotationChecker]: L600-3 has no Hoare annotation [2020-07-08 16:26:08,100 WARN L170 areAnnotationChecker]: L601 has no Hoare annotation [2020-07-08 16:26:08,100 WARN L170 areAnnotationChecker]: L592 has no Hoare annotation [2020-07-08 16:26:08,101 WARN L170 areAnnotationChecker]: L560 has no Hoare annotation [2020-07-08 16:26:08,101 WARN L170 areAnnotationChecker]: L557-3 has no Hoare annotation [2020-07-08 16:26:08,101 WARN L170 areAnnotationChecker]: L557-3 has no Hoare annotation [2020-07-08 16:26:08,101 WARN L170 areAnnotationChecker]: L554-5 has no Hoare annotation [2020-07-08 16:26:08,101 WARN L170 areAnnotationChecker]: L554-8 has no Hoare annotation [2020-07-08 16:26:08,101 WARN L170 areAnnotationChecker]: L554-13 has no Hoare annotation [2020-07-08 16:26:08,101 WARN L170 areAnnotationChecker]: L545-5 has no Hoare annotation [2020-07-08 16:26:08,101 WARN L170 areAnnotationChecker]: L572-4 has no Hoare annotation [2020-07-08 16:26:08,102 WARN L170 areAnnotationChecker]: L606 has no Hoare annotation [2020-07-08 16:26:08,102 WARN L170 areAnnotationChecker]: L601-1 has no Hoare annotation [2020-07-08 16:26:08,102 WARN L170 areAnnotationChecker]: L601-1 has no Hoare annotation [2020-07-08 16:26:08,102 WARN L170 areAnnotationChecker]: L593 has no Hoare annotation [2020-07-08 16:26:08,102 WARN L170 areAnnotationChecker]: L593 has no Hoare annotation [2020-07-08 16:26:08,102 WARN L170 areAnnotationChecker]: L560-1 has no Hoare annotation [2020-07-08 16:26:08,102 WARN L170 areAnnotationChecker]: L557-4 has no Hoare annotation [2020-07-08 16:26:08,102 WARN L170 areAnnotationChecker]: L557-7 has no Hoare annotation [2020-07-08 16:26:08,103 WARN L170 areAnnotationChecker]: L557-7 has no Hoare annotation [2020-07-08 16:26:08,103 WARN L170 areAnnotationChecker]: L554-9 has no Hoare annotation [2020-07-08 16:26:08,103 WARN L170 areAnnotationChecker]: L554-14 has no Hoare annotation [2020-07-08 16:26:08,103 WARN L170 areAnnotationChecker]: L545-6 has no Hoare annotation [2020-07-08 16:26:08,103 WARN L170 areAnnotationChecker]: L573 has no Hoare annotation [2020-07-08 16:26:08,103 WARN L170 areAnnotationChecker]: L606-1 has no Hoare annotation [2020-07-08 16:26:08,103 WARN L170 areAnnotationChecker]: L601-2 has no Hoare annotation [2020-07-08 16:26:08,104 WARN L170 areAnnotationChecker]: L601-4 has no Hoare annotation [2020-07-08 16:26:08,104 WARN L170 areAnnotationChecker]: L593-1 has no Hoare annotation [2020-07-08 16:26:08,104 WARN L170 areAnnotationChecker]: L593-1 has no Hoare annotation [2020-07-08 16:26:08,104 WARN L170 areAnnotationChecker]: L593-3 has no Hoare annotation [2020-07-08 16:26:08,104 WARN L170 areAnnotationChecker]: L560-2 has no Hoare annotation [2020-07-08 16:26:08,104 WARN L170 areAnnotationChecker]: L557-5 has no Hoare annotation [2020-07-08 16:26:08,104 WARN L170 areAnnotationChecker]: L557-8 has no Hoare annotation [2020-07-08 16:26:08,104 WARN L170 areAnnotationChecker]: L557-13 has no Hoare annotation [2020-07-08 16:26:08,104 WARN L170 areAnnotationChecker]: L554-10 has no Hoare annotation [2020-07-08 16:26:08,105 WARN L170 areAnnotationChecker]: L554-15 has no Hoare annotation [2020-07-08 16:26:08,105 WARN L170 areAnnotationChecker]: L546 has no Hoare annotation [2020-07-08 16:26:08,105 WARN L170 areAnnotationChecker]: L608-1 has no Hoare annotation [2020-07-08 16:26:08,105 WARN L170 areAnnotationChecker]: L608-1 has no Hoare annotation [2020-07-08 16:26:08,105 WARN L170 areAnnotationChecker]: L602 has no Hoare annotation [2020-07-08 16:26:08,105 WARN L170 areAnnotationChecker]: L602 has no Hoare annotation [2020-07-08 16:26:08,105 WARN L170 areAnnotationChecker]: L601-5 has no Hoare annotation [2020-07-08 16:26:08,106 WARN L170 areAnnotationChecker]: L594 has no Hoare annotation [2020-07-08 16:26:08,106 WARN L170 areAnnotationChecker]: L561 has no Hoare annotation [2020-07-08 16:26:08,106 WARN L170 areAnnotationChecker]: L557-9 has no Hoare annotation [2020-07-08 16:26:08,106 WARN L170 areAnnotationChecker]: L557-14 has no Hoare annotation [2020-07-08 16:26:08,106 WARN L170 areAnnotationChecker]: L554-11 has no Hoare annotation [2020-07-08 16:26:08,106 WARN L170 areAnnotationChecker]: L554-16 has no Hoare annotation [2020-07-08 16:26:08,106 WARN L170 areAnnotationChecker]: L546-1 has no Hoare annotation [2020-07-08 16:26:08,106 WARN L170 areAnnotationChecker]: L607-5 has no Hoare annotation [2020-07-08 16:26:08,106 WARN L170 areAnnotationChecker]: L607-5 has no Hoare annotation [2020-07-08 16:26:08,106 WARN L170 areAnnotationChecker]: L607-1 has no Hoare annotation [2020-07-08 16:26:08,107 WARN L170 areAnnotationChecker]: L607-1 has no Hoare annotation [2020-07-08 16:26:08,107 WARN L170 areAnnotationChecker]: L604 has no Hoare annotation [2020-07-08 16:26:08,107 WARN L170 areAnnotationChecker]: L595 has no Hoare annotation [2020-07-08 16:26:08,107 WARN L170 areAnnotationChecker]: L561-1 has no Hoare annotation [2020-07-08 16:26:08,107 WARN L170 areAnnotationChecker]: L557-10 has no Hoare annotation [2020-07-08 16:26:08,107 WARN L170 areAnnotationChecker]: L557-15 has no Hoare annotation [2020-07-08 16:26:08,107 WARN L170 areAnnotationChecker]: L555 has no Hoare annotation [2020-07-08 16:26:08,107 WARN L170 areAnnotationChecker]: L546-2 has no Hoare annotation [2020-07-08 16:26:08,107 WARN L170 areAnnotationChecker]: L607-2 has no Hoare annotation [2020-07-08 16:26:08,108 WARN L170 areAnnotationChecker]: L607-4 has no Hoare annotation [2020-07-08 16:26:08,108 WARN L170 areAnnotationChecker]: L604-1 has no Hoare annotation [2020-07-08 16:26:08,108 WARN L170 areAnnotationChecker]: L595-1 has no Hoare annotation [2020-07-08 16:26:08,108 WARN L170 areAnnotationChecker]: L562 has no Hoare annotation [2020-07-08 16:26:08,108 WARN L170 areAnnotationChecker]: L562 has no Hoare annotation [2020-07-08 16:26:08,108 WARN L170 areAnnotationChecker]: L557-11 has no Hoare annotation [2020-07-08 16:26:08,108 WARN L170 areAnnotationChecker]: L557-16 has no Hoare annotation [2020-07-08 16:26:08,108 WARN L170 areAnnotationChecker]: L555-1 has no Hoare annotation [2020-07-08 16:26:08,108 WARN L170 areAnnotationChecker]: L546-3 has no Hoare annotation [2020-07-08 16:26:08,109 WARN L170 areAnnotationChecker]: L608 has no Hoare annotation [2020-07-08 16:26:08,109 WARN L170 areAnnotationChecker]: L608 has no Hoare annotation [2020-07-08 16:26:08,109 WARN L170 areAnnotationChecker]: L562-1 has no Hoare annotation [2020-07-08 16:26:08,109 WARN L170 areAnnotationChecker]: L562-2 has no Hoare annotation [2020-07-08 16:26:08,109 WARN L170 areAnnotationChecker]: L558 has no Hoare annotation [2020-07-08 16:26:08,109 WARN L170 areAnnotationChecker]: L555-2 has no Hoare annotation [2020-07-08 16:26:08,109 WARN L170 areAnnotationChecker]: L546-4 has no Hoare annotation [2020-07-08 16:26:08,109 WARN L170 areAnnotationChecker]: L563 has no Hoare annotation [2020-07-08 16:26:08,109 WARN L170 areAnnotationChecker]: L562-3 has no Hoare annotation [2020-07-08 16:26:08,109 WARN L170 areAnnotationChecker]: L558-1 has no Hoare annotation [2020-07-08 16:26:08,110 WARN L170 areAnnotationChecker]: L546-5 has no Hoare annotation [2020-07-08 16:26:08,110 WARN L170 areAnnotationChecker]: L563-1 has no Hoare annotation [2020-07-08 16:26:08,110 WARN L170 areAnnotationChecker]: sl_random_insertEXIT has no Hoare annotation [2020-07-08 16:26:08,110 WARN L170 areAnnotationChecker]: L558-2 has no Hoare annotation [2020-07-08 16:26:08,110 WARN L170 areAnnotationChecker]: L547 has no Hoare annotation [2020-07-08 16:26:08,110 WARN L170 areAnnotationChecker]: L563-2 has no Hoare annotation [2020-07-08 16:26:08,110 WARN L170 areAnnotationChecker]: create_sl_with_head_and_tailFINAL has no Hoare annotation [2020-07-08 16:26:08,110 WARN L170 areAnnotationChecker]: L564 has no Hoare annotation [2020-07-08 16:26:08,111 WARN L170 areAnnotationChecker]: create_sl_with_head_and_tailEXIT has no Hoare annotation [2020-07-08 16:26:08,111 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 16:26:08,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 04:26:08 BoogieIcfgContainer [2020-07-08 16:26:08,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 16:26:08,118 INFO L168 Benchmark]: Toolchain (without parser) took 6665.50 ms. Allocated memory was 134.7 MB in the beginning and 310.4 MB in the end (delta: 175.6 MB). Free memory was 99.3 MB in the beginning and 257.7 MB in the end (delta: -158.5 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:08,118 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 134.7 MB. Free memory was 118.2 MB in the beginning and 117.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-08 16:26:08,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.60 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 98.9 MB in the beginning and 163.1 MB in the end (delta: -64.3 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:08,120 INFO L168 Benchmark]: Boogie Preprocessor took 89.01 ms. Allocated memory is still 199.2 MB. Free memory was 163.1 MB in the beginning and 158.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:08,121 INFO L168 Benchmark]: RCFGBuilder took 1043.70 ms. Allocated memory was 199.2 MB in the beginning and 225.4 MB in the end (delta: 26.2 MB). Free memory was 158.8 MB in the beginning and 184.0 MB in the end (delta: -25.2 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:08,122 INFO L168 Benchmark]: TraceAbstraction took 4818.61 ms. Allocated memory was 225.4 MB in the beginning and 310.4 MB in the end (delta: 84.9 MB). Free memory was 184.0 MB in the beginning and 257.7 MB in the end (delta: -73.7 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:08,125 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 134.7 MB. Free memory was 118.2 MB in the beginning and 117.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 706.60 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 98.9 MB in the beginning and 163.1 MB in the end (delta: -64.3 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.01 ms. Allocated memory is still 199.2 MB. Free memory was 163.1 MB in the beginning and 158.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1043.70 ms. Allocated memory was 199.2 MB in the beginning and 225.4 MB in the end (delta: 26.2 MB). Free memory was 158.8 MB in the beginning and 184.0 MB in the end (delta: -25.2 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4818.61 ms. Allocated memory was 225.4 MB in the beginning and 310.4 MB in the end (delta: 84.9 MB). Free memory was 184.0 MB in the beginning and 257.7 MB in the end (delta: -73.7 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 602]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L585] List a = (List) malloc(sizeof(struct node)); [L586] COND FALSE !(a == 0) [L587] List t; [L588] List p = a; [L589] a->h = 2 [L590] COND TRUE __VERIFIER_nondet_int() [L591] p->h = 1 [L592] t = (List) malloc(sizeof(struct node)) [L593] COND FALSE !(t == 0) [L594] p->n = t [L595] EXPR p->n [L595] p = p->n [L590] COND FALSE !(__VERIFIER_nondet_int()) [L597] p->h = 2 [L598] p->n = 0 [L599] p = a [L600] COND TRUE p!=0 [L601] EXPR p->h [L601] COND TRUE p->h != 2 [L602] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 173 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.7s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 216 SDtfs, 246 SDslu, 262 SDs, 0 SdLazy, 352 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 47 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...