/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/list-properties/list_search-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 13:25:34,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:25:34,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:25:34,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:25:34,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:25:34,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:25:34,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:25:34,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:25:34,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:25:34,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:25:34,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:25:34,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:25:34,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:25:34,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:25:34,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:25:34,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:25:34,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:25:34,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:25:34,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:25:34,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:25:34,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:25:34,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:25:34,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:25:34,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:25:34,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 13:25:34,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 13:25:34,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 13:25:34,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 13:25:34,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 13:25:34,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 13:25:34,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 13:25:34,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 13:25:34,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 13:25:34,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 13:25:34,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 13:25:34,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 13:25:34,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 13:25:34,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 13:25:34,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:25:34,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:25:34,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:25:34,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 13:25:34,461 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:25:34,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:25:34,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:25:34,463 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:25:34,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:25:34,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:25:34,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:25:34,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:25:34,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:25:34,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:25:34,464 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:25:34,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:25:34,465 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:25:34,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:25:34,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:25:34,465 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:25:34,465 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:25:34,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:25:34,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:25:34,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:25:34,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:25:34,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:25:34,470 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:25:34,782 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:25:34,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:25:34,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:25:34,800 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:25:34,800 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:25:34,801 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_search-1.i [2020-07-17 13:25:34,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0475d2c1/86b0d28556c74ab494310d0aa0bb9a79/FLAG6438cbc32 [2020-07-17 13:25:35,392 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:25:35,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list_search-1.i [2020-07-17 13:25:35,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0475d2c1/86b0d28556c74ab494310d0aa0bb9a79/FLAG6438cbc32 [2020-07-17 13:25:35,709 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0475d2c1/86b0d28556c74ab494310d0aa0bb9a79 [2020-07-17 13:25:35,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:25:35,720 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:25:35,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:25:35,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:25:35,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:25:35,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:25:35" (1/1) ... [2020-07-17 13:25:35,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b88a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:25:35, skipping insertion in model container [2020-07-17 13:25:35,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:25:35" (1/1) ... [2020-07-17 13:25:35,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:25:35,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:25:36,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:25:36,333 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:25:36,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:25:36,453 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:25:36,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:25:36 WrapperNode [2020-07-17 13:25:36,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:25:36,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:25:36,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:25:36,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:25:36,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:25:36" (1/1) ... [2020-07-17 13:25:36,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:25:36" (1/1) ... [2020-07-17 13:25:36,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:25:36" (1/1) ... [2020-07-17 13:25:36,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:25:36" (1/1) ... [2020-07-17 13:25:36,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:25:36" (1/1) ... [2020-07-17 13:25:36,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:25:36" (1/1) ... [2020-07-17 13:25:36,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:25:36" (1/1) ... [2020-07-17 13:25:36,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:25:36,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:25:36,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:25:36,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:25:36,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:25:36" (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 [2020-07-17 13:25:36,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:25:36,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:25:36,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 13:25:36,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-17 13:25:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-17 13:25:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-07-17 13:25:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-07-17 13:25:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-07-17 13:25:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2020-07-17 13:25:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2020-07-17 13:25:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:25:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:25:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 13:25:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-17 13:25:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-17 13:25:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-17 13:25:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-17 13:25:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-17 13:25:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-17 13:25:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-17 13:25:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-17 13:25:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-17 13:25:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-17 13:25:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-17 13:25:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-17 13:25:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-17 13:25:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-17 13:25:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-17 13:25:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-17 13:25:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-17 13:25:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-17 13:25:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-07-17 13:25:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-07-17 13:25:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-07-17 13:25:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-17 13:25:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-17 13:25:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-17 13:25:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-17 13:25:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-17 13:25:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-17 13:25:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-17 13:25:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-17 13:25:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-17 13:25:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-17 13:25:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-17 13:25:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-17 13:25:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-17 13:25:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-17 13:25:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-17 13:25:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-17 13:25:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-17 13:25:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-17 13:25:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-17 13:25:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-17 13:25:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-17 13:25:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-17 13:25:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-17 13:25:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-17 13:25:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-17 13:25:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-17 13:25:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-17 13:25:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-17 13:25:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-17 13:25:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-17 13:25:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-17 13:25:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-17 13:25:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-17 13:25:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-17 13:25:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 13:25:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-17 13:25:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-17 13:25:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 13:25:36,584 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-17 13:25:36,584 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-17 13:25:36,584 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-17 13:25:36,584 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-17 13:25:36,584 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 13:25:36,584 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-17 13:25:36,585 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-17 13:25:36,585 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-17 13:25:36,585 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-17 13:25:36,585 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-17 13:25:36,585 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-17 13:25:36,585 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-17 13:25:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-17 13:25:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-17 13:25:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-17 13:25:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-17 13:25:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-17 13:25:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-17 13:25:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-17 13:25:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-17 13:25:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-17 13:25:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-17 13:25:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-17 13:25:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-17 13:25:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-17 13:25:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-17 13:25:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-17 13:25:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-17 13:25:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-17 13:25:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-17 13:25:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-17 13:25:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-17 13:25:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-17 13:25:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-17 13:25:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-17 13:25:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-17 13:25:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-17 13:25:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-17 13:25:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-17 13:25:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-17 13:25:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-17 13:25:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-17 13:25:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-17 13:25:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-17 13:25:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-17 13:25:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-17 13:25:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-17 13:25:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-17 13:25:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2020-07-17 13:25:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 13:25:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 13:25:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2020-07-17 13:25:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 13:25:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 13:25:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 13:25:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:25:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 13:25:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:25:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:25:37,134 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:25:37,134 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-17 13:25:37,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:25:37 BoogieIcfgContainer [2020-07-17 13:25:37,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:25:37,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:25:37,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:25:37,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:25:37,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:25:35" (1/3) ... [2020-07-17 13:25:37,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b648c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:25:37, skipping insertion in model container [2020-07-17 13:25:37,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:25:36" (2/3) ... [2020-07-17 13:25:37,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b648c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:25:37, skipping insertion in model container [2020-07-17 13:25:37,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:25:37" (3/3) ... [2020-07-17 13:25:37,146 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2020-07-17 13:25:37,156 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:25:37,163 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:25:37,174 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:25:37,194 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:25:37,195 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:25:37,195 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:25:37,195 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:25:37,195 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:25:37,196 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:25:37,196 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:25:37,196 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:25:37,209 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-07-17 13:25:37,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-07-17 13:25:37,222 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:25:37,223 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:25:37,223 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:25:37,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:25:37,229 INFO L82 PathProgramCache]: Analyzing trace with hash 42223880, now seen corresponding path program 1 times [2020-07-17 13:25:37,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:25:37,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303896752] [2020-07-17 13:25:37,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:25:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:37,821 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 44 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-17 13:25:37,927 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:25:37,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303896752] [2020-07-17 13:25:37,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:25:37,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-17 13:25:37,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538893671] [2020-07-17 13:25:37,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-17 13:25:37,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:25:37,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-17 13:25:37,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-07-17 13:25:37,950 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 12 states. [2020-07-17 13:25:38,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:25:38,830 INFO L93 Difference]: Finished difference Result 187 states and 225 transitions. [2020-07-17 13:25:38,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-17 13:25:38,833 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2020-07-17 13:25:38,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:25:38,849 INFO L225 Difference]: With dead ends: 187 [2020-07-17 13:25:38,849 INFO L226 Difference]: Without dead ends: 92 [2020-07-17 13:25:38,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2020-07-17 13:25:38,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-07-17 13:25:38,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 73. [2020-07-17 13:25:38,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-17 13:25:38,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2020-07-17 13:25:38,965 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 82 [2020-07-17 13:25:38,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:25:38,966 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2020-07-17 13:25:38,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-17 13:25:38,966 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2020-07-17 13:25:38,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-07-17 13:25:38,969 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:25:38,970 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:25:38,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:25:38,970 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:25:38,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:25:38,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1050718625, now seen corresponding path program 1 times [2020-07-17 13:25:38,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:25:38,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2109879153] [2020-07-17 13:25:38,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:25:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:39,207 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-17 13:25:39,323 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:25:39,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2109879153] [2020-07-17 13:25:39,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:25:39,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-17 13:25:39,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249851945] [2020-07-17 13:25:39,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-17 13:25:39,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:25:39,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-17 13:25:39,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2020-07-17 13:25:39,326 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand 15 states. [2020-07-17 13:25:39,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:25:39,955 INFO L93 Difference]: Finished difference Result 113 states and 121 transitions. [2020-07-17 13:25:39,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 13:25:39,955 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 89 [2020-07-17 13:25:39,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:25:39,959 INFO L225 Difference]: With dead ends: 113 [2020-07-17 13:25:39,959 INFO L226 Difference]: Without dead ends: 90 [2020-07-17 13:25:39,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2020-07-17 13:25:39,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-07-17 13:25:39,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 75. [2020-07-17 13:25:39,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-07-17 13:25:39,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-07-17 13:25:39,994 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 89 [2020-07-17 13:25:39,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:25:39,996 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-07-17 13:25:39,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-17 13:25:39,996 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-07-17 13:25:39,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-17 13:25:39,998 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:25:39,999 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:25:39,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 13:25:39,999 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:25:39,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:25:39,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1346991358, now seen corresponding path program 1 times [2020-07-17 13:25:40,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:25:40,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873416678] [2020-07-17 13:25:40,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:25:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:40,071 ERROR L253 erpolLogProxyWrapper]: Interpolant 18 not inductive [2020-07-17 13:25:40,073 ERROR L276 FreeRefinementEngine]: Caught unknown exception: generated interpolants did not pass sanity check [2020-07-17 13:25:40,073 WARN L341 FreeRefinementEngine]: Global settings require throwing the following exception [2020-07-17 13:25:40,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 13:25:40,074 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:874) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:146) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:102) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:283) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-17 13:25:40,080 INFO L168 Benchmark]: Toolchain (without parser) took 4360.09 ms. Allocated memory was 147.3 MB in the beginning and 243.3 MB in the end (delta: 95.9 MB). Free memory was 103.9 MB in the beginning and 129.5 MB in the end (delta: -25.6 MB). Peak memory consumption was 70.4 MB. Max. memory is 7.1 GB. [2020-07-17 13:25:40,081 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 123.9 MB in the beginning and 123.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 13:25:40,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.74 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 103.7 MB in the beginning and 169.8 MB in the end (delta: -66.0 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-07-17 13:25:40,083 INFO L168 Benchmark]: Boogie Preprocessor took 60.79 ms. Allocated memory is still 203.9 MB. Free memory was 169.8 MB in the beginning and 166.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-07-17 13:25:40,084 INFO L168 Benchmark]: RCFGBuilder took 623.22 ms. Allocated memory is still 203.9 MB. Free memory was 166.5 MB in the beginning and 118.7 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. [2020-07-17 13:25:40,085 INFO L168 Benchmark]: TraceAbstraction took 2937.91 ms. Allocated memory was 203.9 MB in the beginning and 243.3 MB in the end (delta: 39.3 MB). Free memory was 118.1 MB in the beginning and 129.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-07-17 13:25:40,089 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 123.9 MB in the beginning and 123.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 732.74 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 103.7 MB in the beginning and 169.8 MB in the end (delta: -66.0 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.79 ms. Allocated memory is still 203.9 MB. Free memory was 169.8 MB in the beginning and 166.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 623.22 ms. Allocated memory is still 203.9 MB. Free memory was 166.5 MB in the beginning and 118.7 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2937.91 ms. Allocated memory was 203.9 MB in the beginning and 243.3 MB in the end (delta: 39.3 MB). Free memory was 118.1 MB in the beginning and 129.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...