/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:00:39,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:00:39,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:00:39,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 02:00:39,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 02:00:39,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 02:00:39,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 02:00:39,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 02:00:39,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 02:00:39,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 02:00:39,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 02:00:39,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 02:00:39,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:00:39,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:00:40,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:00:40,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:00:40,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:00:40,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:00:40,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:00:40,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:00:40,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:00:40,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:00:40,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:00:40,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:00:40,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 02:00:40,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 02:00:40,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 02:00:40,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 02:00:40,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 02:00:40,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 02:00:40,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 02:00:40,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 02:00:40,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 02:00:40,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 02:00:40,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 02:00:40,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 02:00:40,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 02:00:40,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 02:00:40,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:00:40,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:00:40,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:00:40,062 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:00:40,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:00:40,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:00:40,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:00:40,092 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:00:40,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:00:40,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:00:40,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:00:40,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:00:40,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:00:40,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:00:40,095 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:00:40,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:00:40,095 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:00:40,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:00:40,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:00:40,096 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:00:40,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:00:40,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:00:40,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:00:40,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:00:40,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:00:40,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:00:40,097 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:00:40,098 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:00:40,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:00:40,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:00:40,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:00:40,550 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:00:40,551 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:00:40,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2021-02-22 02:00:40,624 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb8134136/1cc04d93913046e5b56b57ef3aa22979/FLAGd63c387ed [2021-02-22 02:00:41,344 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:00:41,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2021-02-22 02:00:41,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb8134136/1cc04d93913046e5b56b57ef3aa22979/FLAGd63c387ed [2021-02-22 02:00:41,619 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb8134136/1cc04d93913046e5b56b57ef3aa22979 [2021-02-22 02:00:41,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:00:41,640 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:00:41,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:00:41,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:00:41,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:00:41,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:00:41" (1/1) ... [2021-02-22 02:00:41,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4de9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:41, skipping insertion in model container [2021-02-22 02:00:41,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:00:41" (1/1) ... [2021-02-22 02:00:41,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:00:41,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:00:42,111 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22665,22678] [2021-02-22 02:00:42,124 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22735,22748] [2021-02-22 02:00:42,125 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22799,22812] [2021-02-22 02:00:42,126 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22894,22907] [2021-02-22 02:00:42,127 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22966,22979] [2021-02-22 02:00:42,130 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[23105,23118] [2021-02-22 02:00:42,133 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[23179,23192] [2021-02-22 02:00:42,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:00:42,155 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:00:42,194 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22665,22678] [2021-02-22 02:00:42,195 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22735,22748] [2021-02-22 02:00:42,196 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22799,22812] [2021-02-22 02:00:42,197 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22894,22907] [2021-02-22 02:00:42,198 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[22966,22979] [2021-02-22 02:00:42,200 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[23105,23118] [2021-02-22 02:00:42,201 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i[23179,23192] [2021-02-22 02:00:42,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:00:42,276 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:00:42,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:42 WrapperNode [2021-02-22 02:00:42,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:00:42,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:00:42,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:00:42,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:00:42,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:42" (1/1) ... [2021-02-22 02:00:42,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:42" (1/1) ... [2021-02-22 02:00:42,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:42" (1/1) ... [2021-02-22 02:00:42,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:42" (1/1) ... [2021-02-22 02:00:42,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:42" (1/1) ... [2021-02-22 02:00:42,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:42" (1/1) ... [2021-02-22 02:00:42,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:42" (1/1) ... [2021-02-22 02:00:42,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:00:42,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:00:42,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:00:42,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:00:42,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:42" (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 [2021-02-22 02:00:42,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:00:42,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:00:42,485 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:00:42,486 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:00:42,486 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-22 02:00:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-22 02:00:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-22 02:00:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-22 02:00:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-22 02:00:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-22 02:00:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-22 02:00:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-22 02:00:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-22 02:00:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-22 02:00:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-22 02:00:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-22 02:00:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-22 02:00:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-22 02:00:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-22 02:00:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-22 02:00:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-22 02:00:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-22 02:00:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-22 02:00:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-22 02:00:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-22 02:00:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-22 02:00:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-22 02:00:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-22 02:00:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-22 02:00:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-22 02:00:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-22 02:00:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-22 02:00:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-22 02:00:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-22 02:00:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-22 02:00:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-22 02:00:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-22 02:00:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-22 02:00:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-22 02:00:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-22 02:00:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-22 02:00:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-22 02:00:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-22 02:00:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-22 02:00:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-22 02:00:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-22 02:00:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-22 02:00:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-22 02:00:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-22 02:00:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-22 02:00:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-22 02:00:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-22 02:00:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-22 02:00:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-22 02:00:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 02:00:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-22 02:00:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-22 02:00:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 02:00:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-22 02:00:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-22 02:00:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-22 02:00:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-22 02:00:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-22 02:00:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:00:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-22 02:00:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-22 02:00:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-22 02:00:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-22 02:00:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-22 02:00:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-22 02:00:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-22 02:00:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-22 02:00:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-22 02:00:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-22 02:00:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-22 02:00:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-22 02:00:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-22 02:00:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-22 02:00:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-22 02:00:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-22 02:00:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-22 02:00:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-22 02:00:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-22 02:00:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-22 02:00:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-22 02:00:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-22 02:00:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-22 02:00:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-22 02:00:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-22 02:00:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-22 02:00:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-22 02:00:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-22 02:00:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-22 02:00:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-22 02:00:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-22 02:00:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-22 02:00:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-22 02:00:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-22 02:00:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-22 02:00:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-22 02:00:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-22 02:00:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-22 02:00:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-22 02:00:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-22 02:00:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-22 02:00:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-22 02:00:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-22 02:00:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:00:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:00:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-22 02:00:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-22 02:00:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:00:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:00:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:00:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 02:00:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 02:00:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:00:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 02:00:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:00:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:00:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:00:42,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:00:42,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:00:43,615 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:00:43,616 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-02-22 02:00:43,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:00:43 BoogieIcfgContainer [2021-02-22 02:00:43,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:00:43,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:00:43,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:00:43,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:00:43,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:00:41" (1/3) ... [2021-02-22 02:00:43,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42def972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:00:43, skipping insertion in model container [2021-02-22 02:00:43,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:00:42" (2/3) ... [2021-02-22 02:00:43,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42def972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:00:43, skipping insertion in model container [2021-02-22 02:00:43,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:00:43" (3/3) ... [2021-02-22 02:00:43,640 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2021-02-22 02:00:43,649 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:00:43,656 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2021-02-22 02:00:43,678 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-02-22 02:00:43,705 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:00:43,706 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:00:43,706 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:00:43,706 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:00:43,706 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:00:43,706 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:00:43,707 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:00:43,707 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:00:43,729 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2021-02-22 02:00:43,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-22 02:00:43,742 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:43,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:00:43,743 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:00:43,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:43,751 INFO L82 PathProgramCache]: Analyzing trace with hash 525799114, now seen corresponding path program 1 times [2021-02-22 02:00:43,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:43,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909418827] [2021-02-22 02:00:43,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:43,860 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:44,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:44,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:44,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:44,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:44,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:44,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:44,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:44,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:44,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909418827] [2021-02-22 02:00:44,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:44,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-22 02:00:44,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541692408] [2021-02-22 02:00:44,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-22 02:00:44,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:44,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-22 02:00:44,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 02:00:44,171 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 3 states. [2021-02-22 02:00:44,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:44,601 INFO L93 Difference]: Finished difference Result 239 states and 297 transitions. [2021-02-22 02:00:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-22 02:00:44,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2021-02-22 02:00:44,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:44,618 INFO L225 Difference]: With dead ends: 239 [2021-02-22 02:00:44,618 INFO L226 Difference]: Without dead ends: 104 [2021-02-22 02:00:44,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 02:00:44,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-02-22 02:00:44,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-02-22 02:00:44,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-22 02:00:44,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 107 transitions. [2021-02-22 02:00:44,688 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 107 transitions. Word has length 27 [2021-02-22 02:00:44,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:44,689 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 107 transitions. [2021-02-22 02:00:44,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-22 02:00:44,689 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 107 transitions. [2021-02-22 02:00:44,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-22 02:00:44,690 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:44,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:00:44,690 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:00:44,691 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:00:44,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:44,692 INFO L82 PathProgramCache]: Analyzing trace with hash -2078116216, now seen corresponding path program 1 times [2021-02-22 02:00:44,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:44,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070960869] [2021-02-22 02:00:44,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:44,699 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:44,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:44,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:44,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:44,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:00:44,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:44,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:00:44,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:44,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:44,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:44,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:44,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:44,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:44,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:44,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:44,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:44,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:44,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:44,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:44,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070960869] [2021-02-22 02:00:44,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:44,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 02:00:44,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501389215] [2021-02-22 02:00:44,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 02:00:44,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:44,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 02:00:44,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:00:44,910 INFO L87 Difference]: Start difference. First operand 104 states and 107 transitions. Second operand 8 states. [2021-02-22 02:00:45,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:45,255 INFO L93 Difference]: Finished difference Result 125 states and 130 transitions. [2021-02-22 02:00:45,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-22 02:00:45,255 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2021-02-22 02:00:45,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:45,257 INFO L225 Difference]: With dead ends: 125 [2021-02-22 02:00:45,258 INFO L226 Difference]: Without dead ends: 123 [2021-02-22 02:00:45,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-02-22 02:00:45,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-02-22 02:00:45,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 102. [2021-02-22 02:00:45,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-02-22 02:00:45,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 105 transitions. [2021-02-22 02:00:45,281 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 105 transitions. Word has length 29 [2021-02-22 02:00:45,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:45,282 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 105 transitions. [2021-02-22 02:00:45,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 02:00:45,282 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 105 transitions. [2021-02-22 02:00:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-22 02:00:45,283 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:45,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:00:45,284 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 02:00:45,284 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:00:45,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:45,285 INFO L82 PathProgramCache]: Analyzing trace with hash 850803823, now seen corresponding path program 1 times [2021-02-22 02:00:45,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:45,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1561992780] [2021-02-22 02:00:45,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:45,290 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:45,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:45,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:45,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:45,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:00:45,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:45,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:00:45,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:45,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:00:45,466 WARN L141 QuantifierPusher]: treesize reduction 17, result has 52.8 percent of original size [2021-02-22 02:00:45,468 WARN L147 QuantifierPusher]: treesize reduction 17, result has 52.8 percent of original size 19 [2021-02-22 02:00:45,488 WARN L141 QuantifierPusher]: treesize reduction 17, result has 63.0 percent of original size [2021-02-22 02:00:45,491 WARN L147 QuantifierPusher]: treesize reduction 17, result has 63.0 percent of original size 29 [2021-02-22 02:00:45,520 WARN L141 QuantifierPusher]: treesize reduction 27, result has 48.1 percent of original size [2021-02-22 02:00:45,525 WARN L147 QuantifierPusher]: treesize reduction 27, result has 48.1 percent of original size 25 [2021-02-22 02:00:45,552 WARN L141 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-02-22 02:00:45,552 WARN L147 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size 9 [2021-02-22 02:00:45,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:45,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:00:45,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:45,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:45,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:45,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:45,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:45,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:45,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1561992780] [2021-02-22 02:00:45,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:45,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-22 02:00:45,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867942426] [2021-02-22 02:00:45,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-22 02:00:45,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:45,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-22 02:00:45,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-02-22 02:00:45,627 INFO L87 Difference]: Start difference. First operand 102 states and 105 transitions. Second operand 11 states. [2021-02-22 02:00:46,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:46,138 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2021-02-22 02:00:46,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-22 02:00:46,139 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 33 [2021-02-22 02:00:46,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:46,141 INFO L225 Difference]: With dead ends: 152 [2021-02-22 02:00:46,141 INFO L226 Difference]: Without dead ends: 149 [2021-02-22 02:00:46,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-02-22 02:00:46,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-02-22 02:00:46,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 111. [2021-02-22 02:00:46,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2021-02-22 02:00:46,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2021-02-22 02:00:46,196 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 33 [2021-02-22 02:00:46,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:46,197 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2021-02-22 02:00:46,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-22 02:00:46,197 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2021-02-22 02:00:46,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-22 02:00:46,198 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:46,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:00:46,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 02:00:46,199 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:00:46,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:46,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1110552932, now seen corresponding path program 1 times [2021-02-22 02:00:46,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:46,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521618312] [2021-02-22 02:00:46,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:46,205 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:46,265 WARN L141 QuantifierPusher]: treesize reduction 18, result has 40.0 percent of original size [2021-02-22 02:00:46,266 WARN L147 QuantifierPusher]: treesize reduction 18, result has 40.0 percent of original size 12 [2021-02-22 02:00:46,270 WARN L141 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-02-22 02:00:46,271 WARN L147 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size 25 [2021-02-22 02:00:46,284 WARN L141 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-02-22 02:00:46,286 WARN L147 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size 25 [2021-02-22 02:00:46,300 WARN L141 QuantifierPusher]: treesize reduction 15, result has 55.9 percent of original size [2021-02-22 02:00:46,302 WARN L147 QuantifierPusher]: treesize reduction 15, result has 55.9 percent of original size 19 [2021-02-22 02:00:46,319 WARN L141 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-02-22 02:00:46,320 WARN L147 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size 10 [2021-02-22 02:00:46,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:46,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:46,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:46,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:46,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521618312] [2021-02-22 02:00:46,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:46,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 02:00:46,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427472309] [2021-02-22 02:00:46,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 02:00:46,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:46,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 02:00:46,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-22 02:00:46,357 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand 6 states. [2021-02-22 02:00:46,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:46,667 INFO L93 Difference]: Finished difference Result 144 states and 150 transitions. [2021-02-22 02:00:46,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-22 02:00:46,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2021-02-22 02:00:46,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:46,669 INFO L225 Difference]: With dead ends: 144 [2021-02-22 02:00:46,669 INFO L226 Difference]: Without dead ends: 122 [2021-02-22 02:00:46,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:00:46,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-02-22 02:00:46,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 114. [2021-02-22 02:00:46,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2021-02-22 02:00:46,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 118 transitions. [2021-02-22 02:00:46,696 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 118 transitions. Word has length 42 [2021-02-22 02:00:46,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:46,697 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 118 transitions. [2021-02-22 02:00:46,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 02:00:46,697 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 118 transitions. [2021-02-22 02:00:46,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-22 02:00:46,698 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:46,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:00:46,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 02:00:46,699 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:00:46,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:46,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1418544430, now seen corresponding path program 1 times [2021-02-22 02:00:46,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:46,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151121234] [2021-02-22 02:00:46,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:46,705 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:46,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:46,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:46,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:46,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 02:00:46,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:46,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:00:46,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:46,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:46,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:46,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:46,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:46,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:46,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [151121234] [2021-02-22 02:00:46,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:46,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-22 02:00:46,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192213458] [2021-02-22 02:00:46,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-22 02:00:46,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:46,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-22 02:00:46,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-22 02:00:46,789 INFO L87 Difference]: Start difference. First operand 114 states and 118 transitions. Second operand 5 states. [2021-02-22 02:00:47,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:47,049 INFO L93 Difference]: Finished difference Result 119 states and 123 transitions. [2021-02-22 02:00:47,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 02:00:47,050 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2021-02-22 02:00:47,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:47,051 INFO L225 Difference]: With dead ends: 119 [2021-02-22 02:00:47,052 INFO L226 Difference]: Without dead ends: 116 [2021-02-22 02:00:47,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-22 02:00:47,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-02-22 02:00:47,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 111. [2021-02-22 02:00:47,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2021-02-22 02:00:47,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2021-02-22 02:00:47,075 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 42 [2021-02-22 02:00:47,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:47,075 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2021-02-22 02:00:47,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-22 02:00:47,075 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2021-02-22 02:00:47,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-22 02:00:47,076 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:47,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:00:47,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 02:00:47,077 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:00:47,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:47,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1563952123, now seen corresponding path program 1 times [2021-02-22 02:00:47,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:47,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019087266] [2021-02-22 02:00:47,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:47,083 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:47,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:47,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 02:00:47,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 02:00:47,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:00:47,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:47,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:47,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:47,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:47,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019087266] [2021-02-22 02:00:47,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:47,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-22 02:00:47,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126926708] [2021-02-22 02:00:47,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-22 02:00:47,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:47,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-22 02:00:47,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-22 02:00:47,208 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand 5 states. [2021-02-22 02:00:47,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:47,495 INFO L93 Difference]: Finished difference Result 114 states and 118 transitions. [2021-02-22 02:00:47,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 02:00:47,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2021-02-22 02:00:47,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:47,497 INFO L225 Difference]: With dead ends: 114 [2021-02-22 02:00:47,497 INFO L226 Difference]: Without dead ends: 111 [2021-02-22 02:00:47,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-22 02:00:47,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-02-22 02:00:47,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 108. [2021-02-22 02:00:47,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2021-02-22 02:00:47,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 112 transitions. [2021-02-22 02:00:47,521 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 112 transitions. Word has length 46 [2021-02-22 02:00:47,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:47,521 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 112 transitions. [2021-02-22 02:00:47,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-22 02:00:47,521 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 112 transitions. [2021-02-22 02:00:47,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-02-22 02:00:47,523 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:47,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:00:47,523 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 02:00:47,523 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:00:47,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:47,524 INFO L82 PathProgramCache]: Analyzing trace with hash -274831163, now seen corresponding path program 1 times [2021-02-22 02:00:47,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:47,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [305910411] [2021-02-22 02:00:47,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:47,529 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:00:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:47,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:47,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:00:47,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:00:47,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 02:00:47,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 02:00:47,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 02:00:47,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 02:00:47,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 02:00:47,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:00:47,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:00:47,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:47,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:00:47,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:47,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:00:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:00:47,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:47,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:00:47,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:00:47,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [305910411] [2021-02-22 02:00:47,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:00:47,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-22 02:00:47,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831882077] [2021-02-22 02:00:47,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-22 02:00:47,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:00:47,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-22 02:00:47,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-02-22 02:00:47,840 INFO L87 Difference]: Start difference. First operand 108 states and 112 transitions. Second operand 14 states. [2021-02-22 02:00:48,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:00:48,669 INFO L93 Difference]: Finished difference Result 158 states and 164 transitions. [2021-02-22 02:00:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-22 02:00:48,669 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 48 [2021-02-22 02:00:48,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:00:48,673 INFO L225 Difference]: With dead ends: 158 [2021-02-22 02:00:48,673 INFO L226 Difference]: Without dead ends: 156 [2021-02-22 02:00:48,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-02-22 02:00:48,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-02-22 02:00:48,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 131. [2021-02-22 02:00:48,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2021-02-22 02:00:48,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 136 transitions. [2021-02-22 02:00:48,712 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 136 transitions. Word has length 48 [2021-02-22 02:00:48,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:00:48,714 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 136 transitions. [2021-02-22 02:00:48,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-22 02:00:48,715 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 136 transitions. [2021-02-22 02:00:48,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-02-22 02:00:48,720 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:00:48,720 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:00:48,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 02:00:48,720 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:00:48,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:00:48,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1378541610, now seen corresponding path program 1 times [2021-02-22 02:00:48,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:00:48,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45226142] [2021-02-22 02:00:48,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:00:48,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:48,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:48,799 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size [2021-02-22 02:00:48,821 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-02-22 02:00:48,829 WARN L141 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size [2021-02-22 02:00:48,834 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:48,840 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:48,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:00:48,851 WARN L147 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size 44 [2021-02-22 02:00:48,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:48,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:48,876 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size [2021-02-22 02:00:48,880 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size 25 [2021-02-22 02:00:48,885 WARN L141 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-02-22 02:00:48,887 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:48,892 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:48,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:00:48,902 WARN L147 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size 40 [2021-02-22 02:00:48,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:48,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:48,934 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size [2021-02-22 02:00:48,937 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size 25 [2021-02-22 02:00:48,945 WARN L141 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-02-22 02:00:48,947 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:48,948 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:48,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:00:48,954 WARN L147 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size 40 [2021-02-22 02:00:48,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:48,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:48,970 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size [2021-02-22 02:00:48,972 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-02-22 02:00:48,976 WARN L141 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size [2021-02-22 02:00:48,977 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:48,979 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:48,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:00:48,985 WARN L147 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size 44 [2021-02-22 02:00:48,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:48,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:48,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:49,000 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size [2021-02-22 02:00:49,003 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size 25 [2021-02-22 02:00:49,006 WARN L141 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-02-22 02:00:49,008 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:49,011 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:49,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:49,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:49,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:00:49,016 WARN L147 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size 40 [2021-02-22 02:00:49,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:49,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:49,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:49,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:49,032 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size [2021-02-22 02:00:49,036 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-02-22 02:00:49,039 WARN L141 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size [2021-02-22 02:00:49,040 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:49,042 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:49,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:49,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:49,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:00:49,047 WARN L147 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size 44 [2021-02-22 02:00:49,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:49,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:49,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:49,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:49,065 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size [2021-02-22 02:00:49,067 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-02-22 02:00:49,070 WARN L141 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size [2021-02-22 02:00:49,072 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:49,074 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:49,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:49,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:49,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:00:49,080 WARN L147 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size 44 [2021-02-22 02:00:49,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:49,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:49,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:49,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:00:49,096 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size [2021-02-22 02:00:49,100 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size 25 [2021-02-22 02:00:49,106 WARN L141 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-02-22 02:00:49,107 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:00:49,109 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:49,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:00:49,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:00:49,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:00:49,114 WARN L147 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size 40 [2021-02-22 02:00:49,115 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:00:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:00:49,137 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:00:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:00:49,164 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:00:49,219 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 02:00:49,220 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 02:00:49,220 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-22 02:00:49,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:00:49 BoogieIcfgContainer [2021-02-22 02:00:49,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 02:00:49,252 INFO L168 Benchmark]: Toolchain (without parser) took 7624.38 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 129.6 MB in the beginning and 81.9 MB in the end (delta: 47.7 MB). Peak memory consumption was 80.8 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:49,255 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 154.1 MB. Free memory is still 128.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:00:49,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.71 ms. Allocated memory is still 154.1 MB. Free memory was 128.6 MB in the beginning and 105.3 MB in the end (delta: 23.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:49,258 INFO L168 Benchmark]: Boogie Preprocessor took 78.64 ms. Allocated memory is still 154.1 MB. Free memory was 105.3 MB in the beginning and 102.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:49,259 INFO L168 Benchmark]: RCFGBuilder took 1261.98 ms. Allocated memory is still 154.1 MB. Free memory was 102.2 MB in the beginning and 88.3 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:49,259 INFO L168 Benchmark]: TraceAbstraction took 5626.48 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 87.7 MB in the beginning and 81.9 MB in the end (delta: 5.8 MB). Peak memory consumption was 38.9 MB. Max. memory is 8.0 GB. [2021-02-22 02:00:49,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 154.1 MB. Free memory is still 128.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 634.71 ms. Allocated memory is still 154.1 MB. Free memory was 128.6 MB in the beginning and 105.3 MB in the end (delta: 23.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 78.64 ms. Allocated memory is still 154.1 MB. Free memory was 105.3 MB in the beginning and 102.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1261.98 ms. Allocated memory is still 154.1 MB. Free memory was 102.2 MB in the beginning and 88.3 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5626.48 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 87.7 MB in the beginning and 81.9 MB in the end (delta: 5.8 MB). Peak memory consumption was 38.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1048]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L998] struct TSLL* null = malloc(sizeof(struct TSLL)); [L999] null->next = ((void*)0) [L1000] null->prev = ((void*)0) [L1001] null->colour = BLACK [L1003] struct TSLL* list = malloc(sizeof(struct TSLL)); [L1004] list->next = null [L1005] list->prev = null [L1006] list->colour = BLACK [L1008] struct TSLL* end = list; [L1011] COND FALSE !(__VERIFIER_nondet_int()) [L1037] end = null [L1038] end = list [L1041] COND FALSE !(!(null != end)) [L1042] EXPR end->colour [L1042] COND FALSE !(!(BLACK == end->colour)) [L1043] COND TRUE null != end [L1045] EXPR end->colour [L1045] COND FALSE !(RED == end->colour) [L1052] EXPR end->next [L1052] end = end->next [L1043] COND TRUE null != end [L1045] EXPR end->colour [L1045] COND TRUE RED == end->colour [L1047] EXPR end->next [L1047] end = end->next [L1048] COND TRUE !(null != end) [L1048] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 139 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.5s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 640 SDtfs, 1581 SDslu, 1252 SDs, 0 SdLazy, 1667 SolverSat, 118 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 100 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...