/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/list-properties/list_search-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:15:04,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:15:04,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:15:04,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 05:15:04,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 05:15:04,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 05:15:04,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 05:15:04,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 05:15:04,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 05:15:04,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 05:15:04,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 05:15:04,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 05:15:04,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:15:04,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:15:04,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:15:04,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:15:04,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:15:04,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:15:04,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:15:04,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:15:04,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:15:04,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:15:04,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:15:04,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:15:04,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 05:15:04,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 05:15:04,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 05:15:04,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 05:15:04,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 05:15:04,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 05:15:04,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 05:15:04,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 05:15:04,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 05:15:04,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 05:15:04,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 05:15:04,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 05:15:04,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 05:15:04,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 05:15:04,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:15:04,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:15:04,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:15:04,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 05:15:04,566 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:15:04,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:15:04,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:15:04,572 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:15:04,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:15:04,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:15:04,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:15:04,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:15:04,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:15:04,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:15:04,574 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:15:04,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:15:04,574 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:15:04,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:15:04,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:15:04,575 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:15:04,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:15:04,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:15:04,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:15:04,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:15:04,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:15:04,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:15:04,577 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:15:04,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:15:05,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:15:05,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:15:05,043 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:15:05,044 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:15:05,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_search-1.i [2020-11-07 05:15:05,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8eef9c1f/3bf742e543b745c48cf3f679964189f4/FLAG18fceaee0 [2020-11-07 05:15:06,049 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:15:06,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list_search-1.i [2020-11-07 05:15:06,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8eef9c1f/3bf742e543b745c48cf3f679964189f4/FLAG18fceaee0 [2020-11-07 05:15:06,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8eef9c1f/3bf742e543b745c48cf3f679964189f4 [2020-11-07 05:15:06,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:15:06,278 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:15:06,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:15:06,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:15:06,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:15:06,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:15:06" (1/1) ... [2020-11-07 05:15:06,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e7c1d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:15:06, skipping insertion in model container [2020-11-07 05:15:06,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:15:06" (1/1) ... [2020-11-07 05:15:06,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:15:06,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:15:06,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:15:06,800 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:15:06,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:15:06,978 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:15:06,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:15:06 WrapperNode [2020-11-07 05:15:06,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:15:06,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:15:06,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:15:06,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:15:06,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:15:06" (1/1) ... [2020-11-07 05:15:06,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:15:06" (1/1) ... [2020-11-07 05:15:07,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:15:06" (1/1) ... [2020-11-07 05:15:07,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:15:06" (1/1) ... [2020-11-07 05:15:07,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:15:06" (1/1) ... [2020-11-07 05:15:07,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:15:06" (1/1) ... [2020-11-07 05:15:07,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:15:06" (1/1) ... [2020-11-07 05:15:07,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:15:07,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:15:07,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:15:07,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:15:07,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:15:06" (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 [2020-11-07 05:15:07,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:15:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:15:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:15:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 05:15:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-07 05:15:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-07 05:15:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-07 05:15:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-07 05:15:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-07 05:15:07,242 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2020-11-07 05:15:07,242 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2020-11-07 05:15:07,242 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:15:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:15:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:15:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 05:15:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 05:15:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:15:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:15:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 05:15:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-07 05:15:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-07 05:15:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-07 05:15:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-07 05:15:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-07 05:15:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-07 05:15:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-07 05:15:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-07 05:15:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-07 05:15:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-07 05:15:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-07 05:15:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-07 05:15:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-07 05:15:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-07 05:15:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-07 05:15:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-07 05:15:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-07 05:15:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-07 05:15:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-07 05:15:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-07 05:15:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-07 05:15:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-07 05:15:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-07 05:15:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-07 05:15:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-07 05:15:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-07 05:15:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-07 05:15:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-07 05:15:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-07 05:15:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-07 05:15:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-07 05:15:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-07 05:15:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-07 05:15:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-07 05:15:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-07 05:15:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-07 05:15:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-07 05:15:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-07 05:15:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-07 05:15:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-07 05:15:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-07 05:15:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-07 05:15:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-07 05:15:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-07 05:15:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-07 05:15:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-07 05:15:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-07 05:15:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-07 05:15:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-07 05:15:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-07 05:15:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-07 05:15:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-07 05:15:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-07 05:15:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-07 05:15:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-07 05:15:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 05:15:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-07 05:15:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-07 05:15:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 05:15:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-07 05:15:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-07 05:15:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-07 05:15:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-07 05:15:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-07 05:15:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-07 05:15:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-07 05:15:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 05:15:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-07 05:15:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-07 05:15:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-07 05:15:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-07 05:15:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-07 05:15:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-07 05:15:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-07 05:15:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-07 05:15:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-07 05:15:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-07 05:15:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-07 05:15:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-07 05:15:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-07 05:15:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-07 05:15:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-07 05:15:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-07 05:15:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-07 05:15:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-07 05:15:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-07 05:15:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-07 05:15:07,257 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-07 05:15:07,257 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-07 05:15:07,257 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-07 05:15:07,257 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-07 05:15:07,257 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-07 05:15:07,257 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-07 05:15:07,257 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-07 05:15:07,258 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-07 05:15:07,258 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-07 05:15:07,258 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-07 05:15:07,258 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-07 05:15:07,258 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-07 05:15:07,258 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-07 05:15:07,258 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-07 05:15:07,259 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-07 05:15:07,259 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-07 05:15:07,259 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-07 05:15:07,259 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-07 05:15:07,259 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-07 05:15:07,259 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2020-11-07 05:15:07,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:15:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 05:15:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2020-11-07 05:15:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 05:15:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:15:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 05:15:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:15:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:15:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:15:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:15:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:15:07,969 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:15:07,970 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-07 05:15:07,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:15:07 BoogieIcfgContainer [2020-11-07 05:15:07,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:15:07,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:15:07,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:15:07,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:15:07,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:15:06" (1/3) ... [2020-11-07 05:15:07,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b624bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:15:07, skipping insertion in model container [2020-11-07 05:15:07,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:15:06" (2/3) ... [2020-11-07 05:15:07,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b624bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:15:07, skipping insertion in model container [2020-11-07 05:15:07,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:15:07" (3/3) ... [2020-11-07 05:15:07,984 INFO L111 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2020-11-07 05:15:08,001 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:15:08,006 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:15:08,021 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:15:08,052 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:15:08,053 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:15:08,053 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:15:08,053 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:15:08,053 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:15:08,053 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:15:08,054 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:15:08,054 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:15:08,076 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2020-11-07 05:15:08,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-11-07 05:15:08,091 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:15:08,092 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, 1, 1, 1, 1, 1, 1] [2020-11-07 05:15:08,093 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:15:08,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:15:08,102 INFO L82 PathProgramCache]: Analyzing trace with hash -838516525, now seen corresponding path program 1 times [2020-11-07 05:15:08,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:15:08,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618368051] [2020-11-07 05:15:08,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:15:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:08,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:15:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:08,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 05:15:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:08,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:15:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:08,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-11-07 05:15:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:09,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-07 05:15:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:09,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-11-07 05:15:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:09,106 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 44 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-11-07 05:15:09,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618368051] [2020-11-07 05:15:09,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:15:09,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-07 05:15:09,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607750245] [2020-11-07 05:15:09,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 05:15:09,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:15:09,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 05:15:09,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-07 05:15:09,143 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 9 states. [2020-11-07 05:15:10,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:15:10,123 INFO L93 Difference]: Finished difference Result 199 states and 240 transitions. [2020-11-07 05:15:10,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-07 05:15:10,126 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-11-07 05:15:10,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:15:10,139 INFO L225 Difference]: With dead ends: 199 [2020-11-07 05:15:10,139 INFO L226 Difference]: Without dead ends: 98 [2020-11-07 05:15:10,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2020-11-07 05:15:10,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-11-07 05:15:10,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 79. [2020-11-07 05:15:10,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-07 05:15:10,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-11-07 05:15:10,228 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 88 [2020-11-07 05:15:10,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:15:10,229 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-11-07 05:15:10,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 05:15:10,229 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-11-07 05:15:10,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-11-07 05:15:10,234 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:15:10,235 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, 1, 1, 1, 1] [2020-11-07 05:15:10,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:15:10,235 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:15:10,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:15:10,240 INFO L82 PathProgramCache]: Analyzing trace with hash -667281668, now seen corresponding path program 1 times [2020-11-07 05:15:10,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:15:10,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493331012] [2020-11-07 05:15:10,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:15:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:10,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:15:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:10,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 05:15:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:10,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:15:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:10,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-11-07 05:15:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:10,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-11-07 05:15:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:10,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-11-07 05:15:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:10,593 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-11-07 05:15:10,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493331012] [2020-11-07 05:15:10,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:15:10,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 05:15:10,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067442448] [2020-11-07 05:15:10,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 05:15:10,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:15:10,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 05:15:10,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:15:10,599 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 10 states. [2020-11-07 05:15:11,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:15:11,563 INFO L93 Difference]: Finished difference Result 121 states and 129 transitions. [2020-11-07 05:15:11,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 05:15:11,564 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 95 [2020-11-07 05:15:11,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:15:11,573 INFO L225 Difference]: With dead ends: 121 [2020-11-07 05:15:11,574 INFO L226 Difference]: Without dead ends: 96 [2020-11-07 05:15:11,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2020-11-07 05:15:11,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-11-07 05:15:11,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 81. [2020-11-07 05:15:11,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-11-07 05:15:11,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 86 transitions. [2020-11-07 05:15:11,623 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 86 transitions. Word has length 95 [2020-11-07 05:15:11,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:15:11,627 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 86 transitions. [2020-11-07 05:15:11,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 05:15:11,627 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 86 transitions. [2020-11-07 05:15:11,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-11-07 05:15:11,640 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:15:11,641 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, 1, 1, 1, 1, 1, 1] [2020-11-07 05:15:11,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:15:11,643 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:15:11,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:15:11,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1952138271, now seen corresponding path program 1 times [2020-11-07 05:15:11,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:15:11,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375858882] [2020-11-07 05:15:11,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:15:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:15:11,797 ERROR L253 erpolLogProxyWrapper]: Interpolant 18 not inductive [2020-11-07 05:15:11,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 05:15:11,802 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:876) 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:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) 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:343) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-07 05:15:11,818 INFO L168 Benchmark]: Toolchain (without parser) took 5540.89 ms. Allocated memory was 158.3 MB in the beginning and 198.2 MB in the end (delta: 39.8 MB). Free memory was 133.5 MB in the beginning and 86.4 MB in the end (delta: 47.1 MB). Peak memory consumption was 87.9 MB. Max. memory is 8.0 GB. [2020-11-07 05:15:11,821 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 158.3 MB. Free memory is still 127.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 05:15:11,825 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.50 ms. Allocated memory is still 158.3 MB. Free memory was 132.8 MB in the beginning and 110.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-07 05:15:11,831 INFO L168 Benchmark]: Boogie Preprocessor took 151.27 ms. Allocated memory is still 158.3 MB. Free memory was 110.6 MB in the beginning and 140.9 MB in the end (delta: -30.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 8.0 GB. [2020-11-07 05:15:11,835 INFO L168 Benchmark]: RCFGBuilder took 839.39 ms. Allocated memory is still 158.3 MB. Free memory was 140.9 MB in the beginning and 94.8 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 8.0 GB. [2020-11-07 05:15:11,837 INFO L168 Benchmark]: TraceAbstraction took 3836.34 ms. Allocated memory was 158.3 MB in the beginning and 198.2 MB in the end (delta: 39.8 MB). Free memory was 94.2 MB in the beginning and 86.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 47.2 MB. Max. memory is 8.0 GB. [2020-11-07 05:15:11,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 158.3 MB. Free memory is still 127.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 693.50 ms. Allocated memory is still 158.3 MB. Free memory was 132.8 MB in the beginning and 110.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 151.27 ms. Allocated memory is still 158.3 MB. Free memory was 110.6 MB in the beginning and 140.9 MB in the end (delta: -30.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 839.39 ms. Allocated memory is still 158.3 MB. Free memory was 140.9 MB in the beginning and 94.8 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3836.34 ms. Allocated memory was 158.3 MB in the beginning and 198.2 MB in the end (delta: 39.8 MB). Free memory was 94.2 MB in the beginning and 86.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 47.2 MB. Max. memory is 8.0 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...