java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 22:08:06,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 22:08:06,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 22:08:06,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 22:08:06,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 22:08:06,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 22:08:06,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 22:08:06,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 22:08:06,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 22:08:06,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 22:08:06,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 22:08:06,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 22:08:06,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 22:08:06,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 22:08:06,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 22:08:06,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 22:08:06,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 22:08:06,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 22:08:06,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 22:08:06,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 22:08:06,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 22:08:06,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 22:08:06,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 22:08:06,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 22:08:06,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 22:08:06,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 22:08:06,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 22:08:06,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 22:08:06,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 22:08:06,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 22:08:06,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 22:08:06,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 22:08:06,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 22:08:06,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 22:08:06,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 22:08:06,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 22:08:06,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 22:08:06,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 22:08:06,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 22:08:06,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 22:08:06,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 22:08:06,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 22:08:06,406 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 22:08:06,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 22:08:06,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 22:08:06,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 22:08:06,408 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 22:08:06,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 22:08:06,408 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 22:08:06,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 22:08:06,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 22:08:06,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 22:08:06,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 22:08:06,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 22:08:06,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 22:08:06,409 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 22:08:06,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 22:08:06,410 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 22:08:06,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 22:08:06,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 22:08:06,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 22:08:06,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 22:08:06,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 22:08:06,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 22:08:06,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 22:08:06,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 22:08:06,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 22:08:06,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 22:08:06,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 22:08:06,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 22:08:06,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 22:08:06,700 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 22:08:06,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 22:08:06,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 22:08:06,724 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 22:08:06,725 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 22:08:06,725 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2019-10-14 22:08:06,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5669dc1ce/5ec018e74d02473d825e7d890a75b2eb/FLAG2ab0a8e02 [2019-10-14 22:08:07,379 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 22:08:07,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2019-10-14 22:08:07,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5669dc1ce/5ec018e74d02473d825e7d890a75b2eb/FLAG2ab0a8e02 [2019-10-14 22:08:07,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5669dc1ce/5ec018e74d02473d825e7d890a75b2eb [2019-10-14 22:08:07,661 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 22:08:07,663 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 22:08:07,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 22:08:07,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 22:08:07,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 22:08:07,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:08:07" (1/1) ... [2019-10-14 22:08:07,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56400103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:07, skipping insertion in model container [2019-10-14 22:08:07,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:08:07" (1/1) ... [2019-10-14 22:08:07,680 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 22:08:07,743 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 22:08:08,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:08:08,271 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 22:08:08,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:08:08,421 INFO L192 MainTranslator]: Completed translation [2019-10-14 22:08:08,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:08 WrapperNode [2019-10-14 22:08:08,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 22:08:08,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 22:08:08,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 22:08:08,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 22:08:08,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:08" (1/1) ... [2019-10-14 22:08:08,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:08" (1/1) ... [2019-10-14 22:08:08,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:08" (1/1) ... [2019-10-14 22:08:08,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:08" (1/1) ... [2019-10-14 22:08:08,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:08" (1/1) ... [2019-10-14 22:08:08,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:08" (1/1) ... [2019-10-14 22:08:08,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:08" (1/1) ... [2019-10-14 22:08:08,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 22:08:08,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 22:08:08,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 22:08:08,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 22:08:08,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:08" (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 [2019-10-14 22:08:08,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 22:08:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 22:08:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-14 22:08:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-14 22:08:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-14 22:08:08,571 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2019-10-14 22:08:08,571 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2019-10-14 22:08:08,571 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2019-10-14 22:08:08,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2019-10-14 22:08:08,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2019-10-14 22:08:08,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2019-10-14 22:08:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2019-10-14 22:08:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2019-10-14 22:08:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2019-10-14 22:08:08,574 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2019-10-14 22:08:08,574 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2019-10-14 22:08:08,577 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2019-10-14 22:08:08,577 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2019-10-14 22:08:08,577 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2019-10-14 22:08:08,577 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2019-10-14 22:08:08,577 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2019-10-14 22:08:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 22:08:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 22:08:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-14 22:08:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-14 22:08:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-14 22:08:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-14 22:08:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-14 22:08:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-14 22:08:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-14 22:08:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-14 22:08:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-14 22:08:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-14 22:08:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-14 22:08:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-14 22:08:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-14 22:08:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-14 22:08:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-14 22:08:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-14 22:08:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-14 22:08:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-14 22:08:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-14 22:08:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-14 22:08:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-14 22:08:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-14 22:08:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-14 22:08:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-14 22:08:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-14 22:08:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-14 22:08:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-14 22:08:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-14 22:08:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-14 22:08:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-14 22:08:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-14 22:08:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-14 22:08:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-14 22:08:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-14 22:08:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-14 22:08:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-14 22:08:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-14 22:08:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-14 22:08:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-14 22:08:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-14 22:08:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-14 22:08:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-14 22:08:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-14 22:08:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-14 22:08:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-14 22:08:08,586 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-14 22:08:08,586 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-14 22:08:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-14 22:08:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-14 22:08:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-14 22:08:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-14 22:08:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-14 22:08:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 22:08:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 22:08:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-14 22:08:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 22:08:08,589 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-14 22:08:08,589 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-14 22:08:08,589 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-14 22:08:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-14 22:08:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-14 22:08:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-14 22:08:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-14 22:08:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-14 22:08:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-14 22:08:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 22:08:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-14 22:08:08,592 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-14 22:08:08,592 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-14 22:08:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-14 22:08:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-14 22:08:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-14 22:08:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-14 22:08:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-14 22:08:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-14 22:08:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-14 22:08:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-14 22:08:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-14 22:08:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-14 22:08:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-14 22:08:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-14 22:08:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-14 22:08:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-14 22:08:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-14 22:08:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-14 22:08:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-14 22:08:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-14 22:08:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-14 22:08:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-14 22:08:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-14 22:08:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-14 22:08:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-14 22:08:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-14 22:08:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-14 22:08:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-14 22:08:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-14 22:08:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-14 22:08:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-14 22:08:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-14 22:08:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-14 22:08:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-14 22:08:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-14 22:08:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-14 22:08:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-14 22:08:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-14 22:08:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 22:08:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2019-10-14 22:08:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2019-10-14 22:08:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 22:08:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 22:08:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2019-10-14 22:08:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2019-10-14 22:08:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 22:08:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2019-10-14 22:08:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 22:08:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-14 22:08:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 22:08:08,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 22:08:08,605 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2019-10-14 22:08:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2019-10-14 22:08:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2019-10-14 22:08:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2019-10-14 22:08:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2019-10-14 22:08:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2019-10-14 22:08:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2019-10-14 22:08:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2019-10-14 22:08:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2019-10-14 22:08:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2019-10-14 22:08:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2019-10-14 22:08:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 22:08:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 22:08:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 22:08:09,452 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 22:08:09,452 INFO L284 CfgBuilder]: Removed 38 assume(true) statements. [2019-10-14 22:08:09,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:08:09 BoogieIcfgContainer [2019-10-14 22:08:09,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 22:08:09,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 22:08:09,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 22:08:09,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 22:08:09,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:08:07" (1/3) ... [2019-10-14 22:08:09,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f527b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:08:09, skipping insertion in model container [2019-10-14 22:08:09,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:08:08" (2/3) ... [2019-10-14 22:08:09,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f527b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:08:09, skipping insertion in model container [2019-10-14 22:08:09,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:08:09" (3/3) ... [2019-10-14 22:08:09,463 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2019-10-14 22:08:09,473 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 22:08:09,482 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 22:08:09,494 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 22:08:09,520 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 22:08:09,521 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 22:08:09,521 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 22:08:09,521 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 22:08:09,521 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 22:08:09,522 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 22:08:09,522 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 22:08:09,522 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 22:08:09,546 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2019-10-14 22:08:09,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-14 22:08:09,555 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:08:09,556 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:08:09,558 INFO L410 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:08:09,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:08:09,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1405399524, now seen corresponding path program 1 times [2019-10-14 22:08:09,573 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:08:09,574 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302133038] [2019-10-14 22:08:09,574 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:08:09,574 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:08:09,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:08:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:10,037 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-14 22:08:10,038 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302133038] [2019-10-14 22:08:10,039 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:08:10,039 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 22:08:10,040 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274681250] [2019-10-14 22:08:10,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 22:08:10,046 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:08:10,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 22:08:10,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 22:08:10,065 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 4 states. [2019-10-14 22:08:10,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:08:10,533 INFO L93 Difference]: Finished difference Result 343 states and 542 transitions. [2019-10-14 22:08:10,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 22:08:10,535 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-14 22:08:10,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:08:10,557 INFO L225 Difference]: With dead ends: 343 [2019-10-14 22:08:10,557 INFO L226 Difference]: Without dead ends: 166 [2019-10-14 22:08:10,569 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-14 22:08:10,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-10-14 22:08:10,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 155. [2019-10-14 22:08:10,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-10-14 22:08:10,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 184 transitions. [2019-10-14 22:08:10,645 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 184 transitions. Word has length 59 [2019-10-14 22:08:10,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:08:10,645 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 184 transitions. [2019-10-14 22:08:10,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 22:08:10,646 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 184 transitions. [2019-10-14 22:08:10,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-14 22:08:10,649 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:08:10,649 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:08:10,649 INFO L410 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:08:10,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:08:10,650 INFO L82 PathProgramCache]: Analyzing trace with hash 747676979, now seen corresponding path program 1 times [2019-10-14 22:08:10,650 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:08:10,650 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051136567] [2019-10-14 22:08:10,651 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:08:10,651 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:08:10,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:08:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:11,084 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-14 22:08:11,085 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051136567] [2019-10-14 22:08:11,085 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425927887] [2019-10-14 22:08:11,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 22:08:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:11,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-14 22:08:11,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 22:08:11,381 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-14 22:08:11,381 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 22:08:11,381 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5] total 13 [2019-10-14 22:08:11,382 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70372593] [2019-10-14 22:08:11,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 22:08:11,386 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:08:11,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 22:08:11,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-14 22:08:11,391 INFO L87 Difference]: Start difference. First operand 155 states and 184 transitions. Second operand 13 states. [2019-10-14 22:08:12,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:08:12,786 INFO L93 Difference]: Finished difference Result 327 states and 406 transitions. [2019-10-14 22:08:12,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 22:08:12,786 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2019-10-14 22:08:12,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:08:12,791 INFO L225 Difference]: With dead ends: 327 [2019-10-14 22:08:12,792 INFO L226 Difference]: Without dead ends: 179 [2019-10-14 22:08:12,794 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2019-10-14 22:08:12,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-10-14 22:08:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 168. [2019-10-14 22:08:12,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-10-14 22:08:12,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 199 transitions. [2019-10-14 22:08:12,816 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 199 transitions. Word has length 60 [2019-10-14 22:08:12,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:08:12,817 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 199 transitions. [2019-10-14 22:08:12,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 22:08:12,817 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 199 transitions. [2019-10-14 22:08:12,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-14 22:08:12,819 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:08:12,819 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:08:13,023 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 22:08:13,024 INFO L410 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:08:13,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:08:13,025 INFO L82 PathProgramCache]: Analyzing trace with hash 586330229, now seen corresponding path program 1 times [2019-10-14 22:08:13,025 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:08:13,025 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849079793] [2019-10-14 22:08:13,026 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:08:13,026 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:08:13,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:08:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,619 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 16 proven. 93 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-10-14 22:08:14,620 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849079793] [2019-10-14 22:08:14,620 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593457789] [2019-10-14 22:08:14,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 22:08:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:14,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 50 conjunts are in the unsatisfiable core [2019-10-14 22:08:14,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 22:08:15,180 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 22:08:15,181 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 47 [2019-10-14 22:08:15,182 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 22:08:15,209 INFO L567 ElimStorePlain]: treesize reduction 20, result has 60.8 percent of original size [2019-10-14 22:08:15,211 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 22:08:15,211 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:8 [2019-10-14 22:08:15,301 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2019-10-14 22:08:15,302 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 22:08:15,304 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 22:08:15,304 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 22:08:15,304 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2019-10-14 22:08:15,427 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 36 proven. 5 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-14 22:08:15,427 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 22:08:15,428 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 22] total 41 [2019-10-14 22:08:15,428 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666803449] [2019-10-14 22:08:15,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-10-14 22:08:15,429 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:08:15,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-10-14 22:08:15,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1547, Unknown=0, NotChecked=0, Total=1640 [2019-10-14 22:08:15,431 INFO L87 Difference]: Start difference. First operand 168 states and 199 transitions. Second operand 41 states. [2019-10-14 22:08:21,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:08:21,046 INFO L93 Difference]: Finished difference Result 409 states and 505 transitions. [2019-10-14 22:08:21,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-10-14 22:08:21,048 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 154 [2019-10-14 22:08:21,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:08:21,054 INFO L225 Difference]: With dead ends: 409 [2019-10-14 22:08:21,054 INFO L226 Difference]: Without dead ends: 250 [2019-10-14 22:08:21,059 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=292, Invalid=4400, Unknown=0, NotChecked=0, Total=4692 [2019-10-14 22:08:21,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-10-14 22:08:21,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 202. [2019-10-14 22:08:21,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-10-14 22:08:21,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 240 transitions. [2019-10-14 22:08:21,118 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 240 transitions. Word has length 154 [2019-10-14 22:08:21,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:08:21,119 INFO L462 AbstractCegarLoop]: Abstraction has 202 states and 240 transitions. [2019-10-14 22:08:21,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-10-14 22:08:21,123 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 240 transitions. [2019-10-14 22:08:21,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-14 22:08:21,127 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:08:21,130 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:08:21,330 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 22:08:21,331 INFO L410 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:08:21,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:08:21,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1779393950, now seen corresponding path program 1 times [2019-10-14 22:08:21,331 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:08:21,332 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403591674] [2019-10-14 22:08:21,332 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:08:21,332 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:08:21,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:08:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,530 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-14 22:08:22,530 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403591674] [2019-10-14 22:08:22,530 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620905086] [2019-10-14 22:08:22,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 22:08:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:08:22,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 52 conjunts are in the unsatisfiable core [2019-10-14 22:08:22,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 22:08:22,881 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-14 22:08:22,881 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 22:08:22,888 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 22:08:22,892 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-14 22:08:22,892 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 22:08:22,898 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 22:08:22,899 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 22:08:22,899 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:7 [2019-10-14 22:08:24,990 WARN L860 $PredicateComparison]: unable to prove that (exists ((alloc_or_die_master_~ptr~1.base Int) (alloc_or_die_master_~ptr~1.offset Int)) (let ((.cse0 (+ alloc_or_die_master_~ptr~1.offset 4)) (.cse1 (+ alloc_or_die_master_~ptr~1.offset 8))) (and (<= (+ |c_#StackHeapBarrier| 1) alloc_or_die_master_~ptr~1.base) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| alloc_or_die_master_~ptr~1.base (store (store (store (select |c_old(#memory_$Pointer$.base)| alloc_or_die_master_~ptr~1.base) alloc_or_die_master_~ptr~1.offset 0) .cse0 0) .cse1 0))) (= (store |c_old(#memory_$Pointer$.offset)| alloc_or_die_master_~ptr~1.base (store (store (store (select |c_old(#memory_$Pointer$.offset)| alloc_or_die_master_~ptr~1.base) alloc_or_die_master_~ptr~1.offset 0) .cse0 0) .cse1 0)) |c_#memory_$Pointer$.offset|)))) is different from true [2019-10-14 22:08:34,794 WARN L191 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 36 [2019-10-14 22:08:34,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,015 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 71 [2019-10-14 22:08:35,016 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 22:08:35,125 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-10-14 22:08:35,126 INFO L567 ElimStorePlain]: treesize reduction 19, result has 78.9 percent of original size [2019-10-14 22:08:35,148 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 71 [2019-10-14 22:08:35,149 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 22:08:35,249 INFO L567 ElimStorePlain]: treesize reduction 17, result has 81.9 percent of original size [2019-10-14 22:08:35,250 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,251 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,251 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,253 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,254 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,257 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,263 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,264 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,264 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,266 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,266 INFO L496 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 22:08:35,267 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:65, output treesize:1 [2019-10-14 22:08:35,691 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 22:08:35,708 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-14 22:08:35,708 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 22:08:35,711 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 22:08:35,712 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 22:08:35,713 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 22:08:35,713 INFO L464 ElimStorePlain]: Eliminatee |v_old(#memory_$Pointer$.offset)_AFTER_CALL_43| vanished before elimination [2019-10-14 22:08:35,714 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 22:08:35,714 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:99, output treesize:1 [2019-10-14 22:08:35,762 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 126 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-14 22:08:35,762 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 22:08:35,762 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 22 [2019-10-14 22:08:35,763 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376970513] [2019-10-14 22:08:35,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-14 22:08:35,764 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:08:35,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-14 22:08:35,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=360, Unknown=5, NotChecked=38, Total=462 [2019-10-14 22:08:35,765 INFO L87 Difference]: Start difference. First operand 202 states and 240 transitions. Second operand 22 states.