/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-36cd7be [2021-02-24 04:25:35,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:25:35,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:25:35,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:25:35,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:25:35,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:25:35,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:25:35,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:25:35,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:25:35,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:25:35,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:25:35,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:25:35,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:25:35,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:25:35,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:25:35,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:25:35,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:25:35,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:25:35,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:25:35,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:25:35,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:25:35,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:25:35,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:25:35,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:25:35,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:25:35,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:25:35,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:25:35,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:25:35,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:25:35,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:25:35,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:25:35,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:25:35,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:25:35,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:25:35,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:25:35,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:25:35,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:25:35,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:25:35,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:25:35,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:25:35,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:25:35,131 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:25:35,147 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:25:35,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:25:35,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:25:35,150 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:25:35,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:25:35,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:25:35,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:25:35,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:25:35,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:25:35,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:25:35,152 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:25:35,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:25:35,152 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:25:35,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:25:35,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:25:35,153 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:25:35,153 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:25:35,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:25:35,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:25:35,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:25:35,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:25:35,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:25:35,155 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:25:35,155 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:25:35,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:25:35,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:25:35,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:25:35,690 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:25:35,691 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:25:35,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2021-02-24 04:25:35,788 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b879aa76/fe9c2eb8a2d34f2d91327be4fbac9969/FLAGbb2d41df8 [2021-02-24 04:25:36,697 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:25:36,698 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2021-02-24 04:25:36,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b879aa76/fe9c2eb8a2d34f2d91327be4fbac9969/FLAGbb2d41df8 [2021-02-24 04:25:36,901 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b879aa76/fe9c2eb8a2d34f2d91327be4fbac9969 [2021-02-24 04:25:36,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:25:36,919 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:25:36,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:25:36,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:25:36,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:25:36,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:25:36" (1/1) ... [2021-02-24 04:25:36,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b45c11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:36, skipping insertion in model container [2021-02-24 04:25:36,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:25:36" (1/1) ... [2021-02-24 04:25:36,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:25:36,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:25:37,363 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] [2021-02-24 04:25:37,369 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] [2021-02-24 04:25:37,371 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] [2021-02-24 04:25:37,372 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] [2021-02-24 04:25:37,374 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] [2021-02-24 04:25:37,376 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] [2021-02-24 04:25:37,378 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] [2021-02-24 04:25:37,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:25:37,401 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:25:37,456 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] [2021-02-24 04:25:37,458 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] [2021-02-24 04:25:37,461 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] [2021-02-24 04:25:37,463 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] [2021-02-24 04:25:37,465 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] [2021-02-24 04:25:37,467 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] [2021-02-24 04:25:37,475 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] [2021-02-24 04:25:37,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:25:37,554 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:25:37,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:37 WrapperNode [2021-02-24 04:25:37,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:25:37,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:25:37,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:25:37,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:25:37,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:37" (1/1) ... [2021-02-24 04:25:37,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:37" (1/1) ... [2021-02-24 04:25:37,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:37" (1/1) ... [2021-02-24 04:25:37,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:37" (1/1) ... [2021-02-24 04:25:37,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:37" (1/1) ... [2021-02-24 04:25:37,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:37" (1/1) ... [2021-02-24 04:25:37,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:37" (1/1) ... [2021-02-24 04:25:37,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:25:37,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:25:37,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:25:37,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:25:37,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:37" (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 [2021-02-24 04:25:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:25:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:25:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:25:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:25:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-24 04:25:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-24 04:25:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-24 04:25:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-24 04:25:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-24 04:25:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-24 04:25:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-24 04:25:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-24 04:25:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-24 04:25:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-24 04:25:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-24 04:25:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-24 04:25:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-24 04:25:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-24 04:25:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-24 04:25:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-24 04:25:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-24 04:25:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-24 04:25:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-24 04:25:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-24 04:25:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-24 04:25:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-24 04:25:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-24 04:25:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-24 04:25:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-24 04:25:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-24 04:25:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-24 04:25:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-24 04:25:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-24 04:25:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-24 04:25:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-24 04:25:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-24 04:25:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-24 04:25:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-24 04:25:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-24 04:25:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-24 04:25:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-24 04:25:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-24 04:25:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-24 04:25:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-24 04:25:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-24 04:25:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-24 04:25:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-24 04:25:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-24 04:25:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-24 04:25:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-24 04:25:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-24 04:25:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-24 04:25:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-24 04:25:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-24 04:25:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 04:25:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-24 04:25:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-24 04:25:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 04:25:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-24 04:25:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-24 04:25:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-24 04:25:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-24 04:25:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-24 04:25:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:25:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-24 04:25:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-24 04:25:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-24 04:25:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:25:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-24 04:25:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-24 04:25:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-24 04:25:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-24 04:25:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-24 04:25:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-24 04:25:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-24 04:25:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-24 04:25:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-24 04:25:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-24 04:25:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-24 04:25:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-24 04:25:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-24 04:25:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-24 04:25:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-24 04:25:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-24 04:25:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-24 04:25:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-24 04:25:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-24 04:25:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-24 04:25:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-24 04:25:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-24 04:25:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-24 04:25:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-24 04:25:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-24 04:25:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-24 04:25:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-24 04:25:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-24 04:25:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-24 04:25:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-24 04:25:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-24 04:25:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-24 04:25:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-24 04:25:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-24 04:25:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-24 04:25:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-24 04:25:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-24 04:25:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-24 04:25:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-24 04:25:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:25:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:25:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 04:25:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 04:25:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:25:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:25:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:25:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 04:25:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 04:25:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:25:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 04:25:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:25:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:25:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:25:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:25:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:25:38,594 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:25:38,597 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-02-24 04:25:38,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:25:38 BoogieIcfgContainer [2021-02-24 04:25:38,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:25:38,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:25:38,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:25:38,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:25:38,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:25:36" (1/3) ... [2021-02-24 04:25:38,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2493d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:25:38, skipping insertion in model container [2021-02-24 04:25:38,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:37" (2/3) ... [2021-02-24 04:25:38,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2493d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:25:38, skipping insertion in model container [2021-02-24 04:25:38,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:25:38" (3/3) ... [2021-02-24 04:25:38,618 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2021-02-24 04:25:38,627 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:25:38,635 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2021-02-24 04:25:38,660 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-02-24 04:25:38,692 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:25:38,692 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:25:38,693 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:25:38,693 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:25:38,693 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:25:38,693 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:25:38,693 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:25:38,694 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:25:38,718 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2021-02-24 04:25:38,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-24 04:25:38,732 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:38,734 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] [2021-02-24 04:25:38,734 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]=== [2021-02-24 04:25:38,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:38,744 INFO L82 PathProgramCache]: Analyzing trace with hash 525799114, now seen corresponding path program 1 times [2021-02-24 04:25:38,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:38,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601329529] [2021-02-24 04:25:38,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:38,864 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:39,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:39,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:39,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:39,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:39,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:39,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:39,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:39,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:39,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601329529] [2021-02-24 04:25:39,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:39,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 04:25:39,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952756412] [2021-02-24 04:25:39,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 04:25:39,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:39,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 04:25:39,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 04:25:39,295 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 3 states. [2021-02-24 04:25:39,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:39,652 INFO L93 Difference]: Finished difference Result 239 states and 297 transitions. [2021-02-24 04:25:39,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 04:25:39,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2021-02-24 04:25:39,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:39,667 INFO L225 Difference]: With dead ends: 239 [2021-02-24 04:25:39,668 INFO L226 Difference]: Without dead ends: 104 [2021-02-24 04:25:39,674 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 [2021-02-24 04:25:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-02-24 04:25:39,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-02-24 04:25:39,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-24 04:25:39,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 107 transitions. [2021-02-24 04:25:39,740 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 107 transitions. Word has length 27 [2021-02-24 04:25:39,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:39,741 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 107 transitions. [2021-02-24 04:25:39,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 04:25:39,742 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 107 transitions. [2021-02-24 04:25:39,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-24 04:25:39,743 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:39,743 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, 1, 1] [2021-02-24 04:25:39,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:25:39,744 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]=== [2021-02-24 04:25:39,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:39,745 INFO L82 PathProgramCache]: Analyzing trace with hash -2078116216, now seen corresponding path program 1 times [2021-02-24 04:25:39,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:39,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671388255] [2021-02-24 04:25:39,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:39,753 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:39,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:39,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:39,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:39,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:25:39,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:39,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:25:39,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:39,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:39,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:39,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:39,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:39,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:39,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:39,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:39,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:39,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:39,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:39,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671388255] [2021-02-24 04:25:39,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:39,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 04:25:39,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732188683] [2021-02-24 04:25:39,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 04:25:39,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:39,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 04:25:39,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:25:39,992 INFO L87 Difference]: Start difference. First operand 104 states and 107 transitions. Second operand 8 states. [2021-02-24 04:25:40,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:40,480 INFO L93 Difference]: Finished difference Result 125 states and 130 transitions. [2021-02-24 04:25:40,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 04:25:40,481 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2021-02-24 04:25:40,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:40,483 INFO L225 Difference]: With dead ends: 125 [2021-02-24 04:25:40,483 INFO L226 Difference]: Without dead ends: 123 [2021-02-24 04:25:40,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:25:40,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-02-24 04:25:40,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 102. [2021-02-24 04:25:40,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-02-24 04:25:40,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 105 transitions. [2021-02-24 04:25:40,521 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 105 transitions. Word has length 29 [2021-02-24 04:25:40,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:40,522 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 105 transitions. [2021-02-24 04:25:40,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 04:25:40,523 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 105 transitions. [2021-02-24 04:25:40,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-24 04:25:40,524 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:40,524 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] [2021-02-24 04:25:40,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:25:40,526 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]=== [2021-02-24 04:25:40,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:40,527 INFO L82 PathProgramCache]: Analyzing trace with hash 850803823, now seen corresponding path program 1 times [2021-02-24 04:25:40,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:40,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537306001] [2021-02-24 04:25:40,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:40,545 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:40,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:40,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:40,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:40,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:25:40,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:40,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:25:40,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:40,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:25:40,770 WARN L141 QuantifierPusher]: treesize reduction 17, result has 52.8 percent of original size [2021-02-24 04:25:40,772 WARN L147 QuantifierPusher]: treesize reduction 17, result has 52.8 percent of original size 19 [2021-02-24 04:25:40,799 WARN L141 QuantifierPusher]: treesize reduction 17, result has 63.0 percent of original size [2021-02-24 04:25:40,800 WARN L147 QuantifierPusher]: treesize reduction 17, result has 63.0 percent of original size 29 [2021-02-24 04:25:40,839 WARN L141 QuantifierPusher]: treesize reduction 27, result has 48.1 percent of original size [2021-02-24 04:25:40,840 WARN L147 QuantifierPusher]: treesize reduction 27, result has 48.1 percent of original size 25 [2021-02-24 04:25:40,873 WARN L141 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-02-24 04:25:40,874 WARN L147 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size 9 [2021-02-24 04:25:40,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:40,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:25:40,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:40,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:40,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:40,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:40,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:40,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:40,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537306001] [2021-02-24 04:25:40,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:40,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-24 04:25:40,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845266484] [2021-02-24 04:25:40,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-24 04:25:40,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:40,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-24 04:25:40,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-02-24 04:25:40,980 INFO L87 Difference]: Start difference. First operand 102 states and 105 transitions. Second operand 11 states. [2021-02-24 04:25:41,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:41,628 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2021-02-24 04:25:41,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 04:25:41,629 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 33 [2021-02-24 04:25:41,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:41,631 INFO L225 Difference]: With dead ends: 152 [2021-02-24 04:25:41,632 INFO L226 Difference]: Without dead ends: 149 [2021-02-24 04:25:41,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-02-24 04:25:41,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-02-24 04:25:41,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 111. [2021-02-24 04:25:41,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2021-02-24 04:25:41,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2021-02-24 04:25:41,661 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 33 [2021-02-24 04:25:41,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:41,661 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2021-02-24 04:25:41,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-24 04:25:41,662 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2021-02-24 04:25:41,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-24 04:25:41,663 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:41,664 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] [2021-02-24 04:25:41,664 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:25:41,664 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]=== [2021-02-24 04:25:41,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:41,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1110552932, now seen corresponding path program 1 times [2021-02-24 04:25:41,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:41,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037305314] [2021-02-24 04:25:41,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:41,672 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:41,755 WARN L141 QuantifierPusher]: treesize reduction 18, result has 40.0 percent of original size [2021-02-24 04:25:41,759 WARN L147 QuantifierPusher]: treesize reduction 18, result has 40.0 percent of original size 12 [2021-02-24 04:25:41,763 WARN L141 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-02-24 04:25:41,765 WARN L147 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size 25 [2021-02-24 04:25:41,781 WARN L141 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-02-24 04:25:41,785 WARN L147 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size 25 [2021-02-24 04:25:41,802 WARN L141 QuantifierPusher]: treesize reduction 15, result has 55.9 percent of original size [2021-02-24 04:25:41,804 WARN L147 QuantifierPusher]: treesize reduction 15, result has 55.9 percent of original size 19 [2021-02-24 04:25:41,819 WARN L141 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-02-24 04:25:41,821 WARN L147 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size 10 [2021-02-24 04:25:41,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:41,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:41,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:41,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037305314] [2021-02-24 04:25:41,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:41,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:25:41,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525134066] [2021-02-24 04:25:41,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:25:41,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:41,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:25:41,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:25:41,874 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand 6 states. [2021-02-24 04:25:42,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:42,223 INFO L93 Difference]: Finished difference Result 144 states and 150 transitions. [2021-02-24 04:25:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:25:42,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2021-02-24 04:25:42,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:42,225 INFO L225 Difference]: With dead ends: 144 [2021-02-24 04:25:42,226 INFO L226 Difference]: Without dead ends: 122 [2021-02-24 04:25:42,227 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 [2021-02-24 04:25:42,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-02-24 04:25:42,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 114. [2021-02-24 04:25:42,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2021-02-24 04:25:42,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 118 transitions. [2021-02-24 04:25:42,253 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 118 transitions. Word has length 42 [2021-02-24 04:25:42,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:42,253 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 118 transitions. [2021-02-24 04:25:42,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:25:42,253 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 118 transitions. [2021-02-24 04:25:42,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-24 04:25:42,255 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:42,255 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] [2021-02-24 04:25:42,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:25:42,256 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]=== [2021-02-24 04:25:42,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:42,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1418544430, now seen corresponding path program 1 times [2021-02-24 04:25:42,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:42,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [405895936] [2021-02-24 04:25:42,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:42,263 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:42,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:42,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:42,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:42,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:25:42,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:42,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:25:42,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:42,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:42,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:42,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:42,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:42,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:42,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [405895936] [2021-02-24 04:25:42,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:42,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 04:25:42,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691366647] [2021-02-24 04:25:42,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 04:25:42,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:42,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 04:25:42,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:25:42,368 INFO L87 Difference]: Start difference. First operand 114 states and 118 transitions. Second operand 5 states. [2021-02-24 04:25:42,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:42,642 INFO L93 Difference]: Finished difference Result 119 states and 123 transitions. [2021-02-24 04:25:42,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:25:42,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2021-02-24 04:25:42,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:42,644 INFO L225 Difference]: With dead ends: 119 [2021-02-24 04:25:42,644 INFO L226 Difference]: Without dead ends: 116 [2021-02-24 04:25:42,645 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 [2021-02-24 04:25:42,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-02-24 04:25:42,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 111. [2021-02-24 04:25:42,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2021-02-24 04:25:42,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2021-02-24 04:25:42,668 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 42 [2021-02-24 04:25:42,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:42,669 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2021-02-24 04:25:42,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 04:25:42,669 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2021-02-24 04:25:42,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-24 04:25:42,671 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:42,671 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] [2021-02-24 04:25:42,672 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 04:25:42,672 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]=== [2021-02-24 04:25:42,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:42,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1563952123, now seen corresponding path program 1 times [2021-02-24 04:25:42,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:42,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112114020] [2021-02-24 04:25:42,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:42,678 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:42,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:42,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:42,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:42,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:25:42,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:42,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:25:42,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:42,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:25:42,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:42,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:42,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:42,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:42,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:42,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:42,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112114020] [2021-02-24 04:25:42,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:42,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 04:25:42,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962337919] [2021-02-24 04:25:42,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 04:25:42,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:42,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 04:25:42,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:25:42,889 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand 5 states. [2021-02-24 04:25:43,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:43,155 INFO L93 Difference]: Finished difference Result 114 states and 118 transitions. [2021-02-24 04:25:43,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:25:43,155 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2021-02-24 04:25:43,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:43,157 INFO L225 Difference]: With dead ends: 114 [2021-02-24 04:25:43,157 INFO L226 Difference]: Without dead ends: 111 [2021-02-24 04:25:43,157 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 [2021-02-24 04:25:43,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-02-24 04:25:43,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 108. [2021-02-24 04:25:43,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2021-02-24 04:25:43,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 112 transitions. [2021-02-24 04:25:43,181 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 112 transitions. Word has length 46 [2021-02-24 04:25:43,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:43,181 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 112 transitions. [2021-02-24 04:25:43,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 04:25:43,182 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 112 transitions. [2021-02-24 04:25:43,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-02-24 04:25:43,183 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:43,184 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] [2021-02-24 04:25:43,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 04:25:43,184 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]=== [2021-02-24 04:25:43,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:43,185 INFO L82 PathProgramCache]: Analyzing trace with hash -274831163, now seen corresponding path program 1 times [2021-02-24 04:25:43,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:43,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139995539] [2021-02-24 04:25:43,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:43,190 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:43,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:43,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:43,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:43,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:25:43,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:43,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:25:43,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:43,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:25:43,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:43,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:25:43,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:43,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:25:43,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:43,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:25:43,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:43,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:25:43,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:43,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:25:43,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:43,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:25:43,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:43,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:43,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:43,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:43,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:43,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:43,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:43,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:43,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:43,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:43,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139995539] [2021-02-24 04:25:43,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:43,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-24 04:25:43,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834842535] [2021-02-24 04:25:43,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 04:25:43,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:43,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 04:25:43,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-02-24 04:25:43,490 INFO L87 Difference]: Start difference. First operand 108 states and 112 transitions. Second operand 14 states. [2021-02-24 04:25:44,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:44,395 INFO L93 Difference]: Finished difference Result 158 states and 164 transitions. [2021-02-24 04:25:44,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 04:25:44,396 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 48 [2021-02-24 04:25:44,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:44,398 INFO L225 Difference]: With dead ends: 158 [2021-02-24 04:25:44,398 INFO L226 Difference]: Without dead ends: 156 [2021-02-24 04:25:44,399 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 [2021-02-24 04:25:44,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-02-24 04:25:44,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 131. [2021-02-24 04:25:44,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2021-02-24 04:25:44,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 136 transitions. [2021-02-24 04:25:44,439 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 136 transitions. Word has length 48 [2021-02-24 04:25:44,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:44,441 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 136 transitions. [2021-02-24 04:25:44,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 04:25:44,441 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 136 transitions. [2021-02-24 04:25:44,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-02-24 04:25:44,449 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:44,449 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] [2021-02-24 04:25:44,450 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 04:25:44,450 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]=== [2021-02-24 04:25:44,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:44,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1378541610, now seen corresponding path program 1 times [2021-02-24 04:25:44,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:44,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121800000] [2021-02-24 04:25:44,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:44,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,537 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size [2021-02-24 04:25:44,557 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size 25 [2021-02-24 04:25:44,564 WARN L141 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-02-24 04:25:44,570 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:44,576 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:44,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:25:44,588 WARN L147 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size 40 [2021-02-24 04:25:44,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,612 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size [2021-02-24 04:25:44,616 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-02-24 04:25:44,621 WARN L141 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size [2021-02-24 04:25:44,622 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:44,624 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:44,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:25:44,630 WARN L147 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size 44 [2021-02-24 04:25:44,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,655 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size [2021-02-24 04:25:44,658 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size 25 [2021-02-24 04:25:44,663 WARN L141 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-02-24 04:25:44,665 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:44,667 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:44,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:25:44,673 WARN L147 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size 40 [2021-02-24 04:25:44,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,692 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size [2021-02-24 04:25:44,695 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-02-24 04:25:44,700 WARN L141 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size [2021-02-24 04:25:44,702 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:44,703 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:44,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:25:44,713 WARN L147 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size 44 [2021-02-24 04:25:44,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,735 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size [2021-02-24 04:25:44,739 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size 25 [2021-02-24 04:25:44,745 WARN L141 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-02-24 04:25:44,747 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:44,750 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:44,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:25:44,759 WARN L147 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size 40 [2021-02-24 04:25:44,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,783 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size [2021-02-24 04:25:44,788 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-02-24 04:25:44,793 WARN L141 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size [2021-02-24 04:25:44,794 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:44,796 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:44,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:25:44,803 WARN L147 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size 44 [2021-02-24 04:25:44,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,825 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size [2021-02-24 04:25:44,828 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-02-24 04:25:44,832 WARN L141 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size [2021-02-24 04:25:44,834 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:44,837 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:44,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:25:44,844 WARN L147 QuantifierPusher]: treesize reduction 24, result has 64.7 percent of original size 44 [2021-02-24 04:25:44,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:25:44,865 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size [2021-02-24 04:25:44,868 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size 25 [2021-02-24 04:25:44,874 WARN L141 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-02-24 04:25:44,876 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:44,878 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:44,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:44,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:25:44,888 WARN L147 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size 40 [2021-02-24 04:25:44,889 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:25:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:25:44,916 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:25:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:25:44,937 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:25:44,983 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 04:25:44,983 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:25:44,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-24 04:25:45,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:25:45 BoogieIcfgContainer [2021-02-24 04:25:45,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:25:45,010 INFO L168 Benchmark]: Toolchain (without parser) took 8100.41 ms. Allocated memory was 166.7 MB in the beginning and 255.9 MB in the end (delta: 89.1 MB). Free memory was 142.6 MB in the beginning and 96.4 MB in the end (delta: 46.2 MB). Peak memory consumption was 136.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:45,011 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 166.7 MB. Free memory was 139.5 MB in the beginning and 139.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:25:45,011 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.94 ms. Allocated memory is still 166.7 MB. Free memory was 141.4 MB in the beginning and 118.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:45,012 INFO L168 Benchmark]: Boogie Preprocessor took 81.22 ms. Allocated memory is still 166.7 MB. Free memory was 118.3 MB in the beginning and 115.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:45,012 INFO L168 Benchmark]: RCFGBuilder took 963.60 ms. Allocated memory is still 166.7 MB. Free memory was 115.1 MB in the beginning and 95.8 MB in the end (delta: 19.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:45,013 INFO L168 Benchmark]: TraceAbstraction took 6400.90 ms. Allocated memory was 166.7 MB in the beginning and 255.9 MB in the end (delta: 89.1 MB). Free memory was 95.3 MB in the beginning and 96.4 MB in the end (delta: -1.2 MB). Peak memory consumption was 87.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:25:45,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 166.7 MB. Free memory was 139.5 MB in the beginning and 139.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 634.94 ms. Allocated memory is still 166.7 MB. Free memory was 141.4 MB in the beginning and 118.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 81.22 ms. Allocated memory is still 166.7 MB. Free memory was 118.3 MB in the beginning and 115.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 963.60 ms. Allocated memory is still 166.7 MB. Free memory was 115.1 MB in the beginning and 95.8 MB in the end (delta: 19.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6400.90 ms. Allocated memory was 166.7 MB in the beginning and 255.9 MB in the end (delta: 89.1 MB). Free memory was 95.3 MB in the beginning and 96.4 MB in the end (delta: -1.2 MB). Peak memory consumption was 87.4 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: 6.2s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 3.3s, 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, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s 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...