java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/seq-pthread/cs_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 04:08:13,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 04:08:13,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 04:08:13,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 04:08:13,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 04:08:13,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 04:08:13,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 04:08:13,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 04:08:13,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 04:08:13,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 04:08:13,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 04:08:13,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 04:08:13,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 04:08:13,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 04:08:13,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 04:08:13,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 04:08:13,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 04:08:13,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 04:08:13,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 04:08:13,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 04:08:13,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 04:08:13,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 04:08:13,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 04:08:13,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 04:08:13,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 04:08:13,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 04:08:13,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 04:08:13,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 04:08:13,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 04:08:13,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 04:08:13,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 04:08:13,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 04:08:13,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 04:08:13,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 04:08:13,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 04:08:13,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 04:08:13,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 04:08:13,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 04:08:13,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 04:08:13,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 04:08:13,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 04:08:13,913 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 04:08:13,928 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 04:08:13,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 04:08:13,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 04:08:13,929 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 04:08:13,930 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 04:08:13,930 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 04:08:13,930 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 04:08:13,930 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 04:08:13,931 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 04:08:13,931 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 04:08:13,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 04:08:13,932 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 04:08:13,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 04:08:13,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 04:08:13,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 04:08:13,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 04:08:13,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 04:08:13,933 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 04:08:13,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 04:08:13,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 04:08:13,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 04:08:13,934 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 04:08:13,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 04:08:13,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 04:08:13,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 04:08:13,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 04:08:13,935 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 04:08:13,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 04:08:13,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 04:08:13,935 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 04:08:13,962 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 04:08:13,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 04:08:13,979 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 04:08:13,980 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 04:08:13,980 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 04:08:13,981 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_time_var_mutex.i [2019-10-03 04:08:14,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef659e2c6/67bca3a621fb4716910d105b703137a3/FLAGb79976d7a [2019-10-03 04:08:14,583 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 04:08:14,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_time_var_mutex.i [2019-10-03 04:08:14,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef659e2c6/67bca3a621fb4716910d105b703137a3/FLAGb79976d7a [2019-10-03 04:08:14,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef659e2c6/67bca3a621fb4716910d105b703137a3 [2019-10-03 04:08:14,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 04:08:14,919 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 04:08:14,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 04:08:14,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 04:08:14,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 04:08:14,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 04:08:14" (1/1) ... [2019-10-03 04:08:14,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@453c3fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 04:08:14, skipping insertion in model container [2019-10-03 04:08:14,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 04:08:14" (1/1) ... [2019-10-03 04:08:14,937 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 04:08:14,999 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 04:08:15,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 04:08:15,548 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 04:08:15,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 04:08:15,792 INFO L192 MainTranslator]: Completed translation [2019-10-03 04:08:15,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 04:08:15 WrapperNode [2019-10-03 04:08:15,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 04:08:15,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 04:08:15,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 04:08:15,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 04:08:15,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 04:08:15" (1/1) ... [2019-10-03 04:08:15,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 04:08:15" (1/1) ... [2019-10-03 04:08:15,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 04:08:15" (1/1) ... [2019-10-03 04:08:15,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 04:08:15" (1/1) ... [2019-10-03 04:08:15,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 04:08:15" (1/1) ... [2019-10-03 04:08:15,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 04:08:15" (1/1) ... [2019-10-03 04:08:15,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 04:08:15" (1/1) ... [2019-10-03 04:08:15,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 04:08:15,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 04:08:15,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 04:08:15,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 04:08:15,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 04:08:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 04:08:16,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 04:08:16,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 04:08:16,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2019-10-03 04:08:16,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-03 04:08:16,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-03 04:08:16,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-03 04:08:16,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-03 04:08:16,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-03 04:08:16,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 04:08:16,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2019-10-03 04:08:16,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2019-10-03 04:08:16,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_destroy [2019-10-03 04:08:16,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2019-10-03 04:08:16,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2019-10-03 04:08:16,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_init [2019-10-03 04:08:16,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_signal [2019-10-03 04:08:16,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_broadcast [2019-10-03 04:08:16,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_wait [2019-10-03 04:08:16,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assert [2019-10-03 04:08:16,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assume [2019-10-03 04:08:16,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2019-10-03 04:08:16,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2019-10-03 04:08:16,029 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2019-10-03 04:08:16,030 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2019-10-03 04:08:16,030 INFO L138 BoogieDeclarations]: Found implementation of procedure main_thread [2019-10-03 04:08:16,030 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 04:08:16,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 04:08:16,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-03 04:08:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-03 04:08:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 04:08:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 04:08:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-03 04:08:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-03 04:08:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-03 04:08:16,032 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-03 04:08:16,032 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-03 04:08:16,032 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-03 04:08:16,032 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-03 04:08:16,032 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-03 04:08:16,032 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-03 04:08:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-03 04:08:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-03 04:08:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-03 04:08:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-03 04:08:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-03 04:08:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-03 04:08:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-03 04:08:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-03 04:08:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-03 04:08:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-03 04:08:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-03 04:08:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-03 04:08:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-03 04:08:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-03 04:08:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-03 04:08:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-03 04:08:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-03 04:08:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-03 04:08:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-03 04:08:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-03 04:08:16,036 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-03 04:08:16,036 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-03 04:08:16,036 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-03 04:08:16,036 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-03 04:08:16,036 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-03 04:08:16,036 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-03 04:08:16,037 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-03 04:08:16,037 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-03 04:08:16,037 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-03 04:08:16,037 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-03 04:08:16,037 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-03 04:08:16,037 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-03 04:08:16,037 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-03 04:08:16,038 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-03 04:08:16,038 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-03 04:08:16,038 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-03 04:08:16,038 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-03 04:08:16,038 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-03 04:08:16,038 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-03 04:08:16,039 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-03 04:08:16,039 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-03 04:08:16,039 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-03 04:08:16,039 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-03 04:08:16,039 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-03 04:08:16,039 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-03 04:08:16,039 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-03 04:08:16,040 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 04:08:16,040 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 04:08:16,040 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-03 04:08:16,040 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 04:08:16,040 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-03 04:08:16,040 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-03 04:08:16,041 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-03 04:08:16,041 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-03 04:08:16,041 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-03 04:08:16,041 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-03 04:08:16,041 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-03 04:08:16,041 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-03 04:08:16,041 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 04:08:16,042 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-03 04:08:16,042 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-03 04:08:16,042 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-03 04:08:16,042 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-03 04:08:16,042 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-03 04:08:16,042 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-03 04:08:16,042 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-03 04:08:16,043 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-03 04:08:16,043 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-03 04:08:16,043 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-03 04:08:16,043 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-03 04:08:16,043 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-03 04:08:16,043 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-03 04:08:16,043 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-03 04:08:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-03 04:08:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-03 04:08:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-03 04:08:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-03 04:08:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-03 04:08:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-03 04:08:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-03 04:08:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-03 04:08:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-03 04:08:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-03 04:08:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-03 04:08:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-03 04:08:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-03 04:08:16,046 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-03 04:08:16,046 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-03 04:08:16,046 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-03 04:08:16,046 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-03 04:08:16,046 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-03 04:08:16,047 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-03 04:08:16,047 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-03 04:08:16,047 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-03 04:08:16,047 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-03 04:08:16,047 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-03 04:08:16,047 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-03 04:08:16,048 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-03 04:08:16,048 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 04:08:16,048 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2019-10-03 04:08:16,048 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2019-10-03 04:08:16,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 04:08:16,049 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2019-10-03 04:08:16,049 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2019-10-03 04:08:16,049 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_destroy [2019-10-03 04:08:16,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 04:08:16,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 04:08:16,049 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2019-10-03 04:08:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2019-10-03 04:08:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_init [2019-10-03 04:08:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_signal [2019-10-03 04:08:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 04:08:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 04:08:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_broadcast [2019-10-03 04:08:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_wait [2019-10-03 04:08:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assert [2019-10-03 04:08:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assume [2019-10-03 04:08:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2019-10-03 04:08:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2019-10-03 04:08:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2019-10-03 04:08:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2019-10-03 04:08:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure main_thread [2019-10-03 04:08:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 04:08:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 04:08:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 04:08:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 04:08:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2019-10-03 04:08:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 04:08:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-03 04:08:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 04:08:16,776 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !(0 != ~__CS_ret~0 % 256); [2019-10-03 04:08:16,777 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume 0 != ~__CS_ret~0 % 256;#res.base, #res.offset := 0, 0; [2019-10-03 04:08:16,777 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume !(0 != ~__CS_ret~0 % 256); [2019-10-03 04:08:16,777 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume 0 != ~__CS_ret~0 % 256;#res.base, #res.offset := 0, 0; [2019-10-03 04:08:16,863 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume !(0 != ~__CS_ret~0 % 256); [2019-10-03 04:08:16,863 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume 0 != ~__CS_ret~0 % 256;#res.base, #res.offset := 0, 0; [2019-10-03 04:08:16,863 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !(0 != ~__CS_ret~0 % 256); [2019-10-03 04:08:16,863 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume 0 != ~__CS_ret~0 % 256;#res.base, #res.offset := 0, 0; [2019-10-03 04:08:19,589 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 04:08:19,589 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 04:08:19,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 04:08:19 BoogieIcfgContainer [2019-10-03 04:08:19,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 04:08:19,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 04:08:19,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 04:08:19,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 04:08:19,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 04:08:14" (1/3) ... [2019-10-03 04:08:19,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477b8904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 04:08:19, skipping insertion in model container [2019-10-03 04:08:19,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 04:08:15" (2/3) ... [2019-10-03 04:08:19,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477b8904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 04:08:19, skipping insertion in model container [2019-10-03 04:08:19,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 04:08:19" (3/3) ... [2019-10-03 04:08:19,598 INFO L109 eAbstractionObserver]: Analyzing ICFG cs_time_var_mutex.i [2019-10-03 04:08:19,608 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 04:08:19,616 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 04:08:19,632 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 04:08:19,658 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 04:08:19,658 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 04:08:19,658 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 04:08:19,658 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 04:08:19,658 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 04:08:19,659 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 04:08:19,659 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 04:08:19,659 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 04:08:19,677 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2019-10-03 04:08:19,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-03 04:08:19,686 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 04:08:19,687 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 04:08:19,689 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 04:08:19,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 04:08:19,695 INFO L82 PathProgramCache]: Analyzing trace with hash 912546732, now seen corresponding path program 1 times [2019-10-03 04:08:19,697 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 04:08:19,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 04:08:19,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 04:08:19,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 04:08:19,761 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 04:08:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 04:08:20,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 04:08:20,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 04:08:20,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 04:08:20,145 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 04:08:20,150 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 04:08:20,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 04:08:20,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 04:08:20,167 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 3 states. [2019-10-03 04:08:20,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 04:08:20,253 INFO L93 Difference]: Finished difference Result 117 states and 159 transitions. [2019-10-03 04:08:20,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 04:08:20,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-10-03 04:08:20,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 04:08:20,266 INFO L225 Difference]: With dead ends: 117 [2019-10-03 04:08:20,266 INFO L226 Difference]: Without dead ends: 110 [2019-10-03 04:08:20,268 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 04:08:20,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-03 04:08:20,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 107. [2019-10-03 04:08:20,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-10-03 04:08:20,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 148 transitions. [2019-10-03 04:08:20,320 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 148 transitions. Word has length 18 [2019-10-03 04:08:20,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 04:08:20,321 INFO L475 AbstractCegarLoop]: Abstraction has 107 states and 148 transitions. [2019-10-03 04:08:20,321 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 04:08:20,321 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 148 transitions. [2019-10-03 04:08:20,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-03 04:08:20,323 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 04:08:20,323 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 04:08:20,323 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 04:08:20,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 04:08:20,324 INFO L82 PathProgramCache]: Analyzing trace with hash 980555822, now seen corresponding path program 1 times [2019-10-03 04:08:20,324 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 04:08:20,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 04:08:20,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 04:08:20,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 04:08:20,329 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 04:08:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 04:08:20,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 04:08:20,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 04:08:20,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 04:08:20,431 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 04:08:20,432 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 04:08:20,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 04:08:20,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 04:08:20,433 INFO L87 Difference]: Start difference. First operand 107 states and 148 transitions. Second operand 3 states. [2019-10-03 04:08:20,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 04:08:20,474 INFO L93 Difference]: Finished difference Result 109 states and 150 transitions. [2019-10-03 04:08:20,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 04:08:20,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-03 04:08:20,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 04:08:20,479 INFO L225 Difference]: With dead ends: 109 [2019-10-03 04:08:20,480 INFO L226 Difference]: Without dead ends: 109 [2019-10-03 04:08:20,480 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 04:08:20,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-10-03 04:08:20,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2019-10-03 04:08:20,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-03 04:08:20,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 149 transitions. [2019-10-03 04:08:20,513 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 149 transitions. Word has length 21 [2019-10-03 04:08:20,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 04:08:20,514 INFO L475 AbstractCegarLoop]: Abstraction has 108 states and 149 transitions. [2019-10-03 04:08:20,514 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 04:08:20,516 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 149 transitions. [2019-10-03 04:08:20,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-03 04:08:20,517 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 04:08:20,517 INFO L411 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] [2019-10-03 04:08:20,518 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 04:08:20,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 04:08:20,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1457781136, now seen corresponding path program 1 times [2019-10-03 04:08:20,518 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 04:08:20,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 04:08:20,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 04:08:20,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 04:08:20,524 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 04:08:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 04:08:20,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-03 04:08:20,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 04:08:20,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 04:08:20,824 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 04:08:20,824 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 04:08:20,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 04:08:20,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 04:08:20,825 INFO L87 Difference]: Start difference. First operand 108 states and 149 transitions. Second operand 5 states. [2019-10-03 04:08:20,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 04:08:20,888 INFO L93 Difference]: Finished difference Result 199 states and 285 transitions. [2019-10-03 04:08:20,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 04:08:20,889 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-10-03 04:08:20,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 04:08:20,893 INFO L225 Difference]: With dead ends: 199 [2019-10-03 04:08:20,894 INFO L226 Difference]: Without dead ends: 193 [2019-10-03 04:08:20,894 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-03 04:08:20,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-10-03 04:08:20,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2019-10-03 04:08:20,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-10-03 04:08:20,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 277 transitions. [2019-10-03 04:08:20,931 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 277 transitions. Word has length 23 [2019-10-03 04:08:20,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 04:08:20,931 INFO L475 AbstractCegarLoop]: Abstraction has 193 states and 277 transitions. [2019-10-03 04:08:20,931 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 04:08:20,931 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 277 transitions. [2019-10-03 04:08:20,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-03 04:08:20,937 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 04:08:20,937 INFO L411 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 04:08:20,937 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 04:08:20,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 04:08:20,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1078103900, now seen corresponding path program 1 times [2019-10-03 04:08:20,938 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 04:08:20,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 04:08:20,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 04:08:20,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 04:08:20,943 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 04:08:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 04:08:21,492 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2019-10-03 04:08:21,492 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 04:08:21,492 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 04:08:21,493 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 118 with the following transitions: [2019-10-03 04:08:21,495 INFO L207 CegarAbsIntRunner]: [0], [5], [7], [12], [14], [19], [21], [26], [28], [33], [35], [40], [42], [46], [69], [253], [256], [258], [268], [269], [270], [276], [278], [284], [286], [288], [292], [296], [309], [311], [324], [326], [329], [331], [336], [341], [345], [346], [376], [379], [381], [402], [405], [421], [422], [424], [425], [430], [433], [437], [438], [454], [457], [461], [471], [472], [473], [474], [475], [476], [477], [478], [479], [480], [481], [482], [483], [484], [485], [486], [487], [488], [489], [490], [491], [492], [493], [494], [495], [496], [569], [570], [571], [573], [574], [575], [576], [577] [2019-10-03 04:08:21,544 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 04:08:21,544 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 04:08:21,605 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 04:08:21,607 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 53 root evaluator evaluations with a maximum evaluation depth of 0. Performed 53 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 104 variables. [2019-10-03 04:08:21,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 04:08:21,610 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 04:08:21,661 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 04:08:21,662 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 04:08:21,668 INFO L420 sIntCurrentIteration]: We unified 116 AI predicates to 116 [2019-10-03 04:08:21,668 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 04:08:21,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 04:08:21,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-10-03 04:08:21,669 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 04:08:21,670 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 04:08:21,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 04:08:21,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 04:08:21,670 INFO L87 Difference]: Start difference. First operand 193 states and 277 transitions. Second operand 2 states. [2019-10-03 04:08:21,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 04:08:21,671 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 04:08:21,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 04:08:21,671 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 117 [2019-10-03 04:08:21,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 04:08:21,672 INFO L225 Difference]: With dead ends: 2 [2019-10-03 04:08:21,672 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 04:08:21,672 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 04:08:21,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 04:08:21,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 04:08:21,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 04:08:21,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 04:08:21,673 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2019-10-03 04:08:21,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 04:08:21,673 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 04:08:21,673 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 04:08:21,674 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 04:08:21,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 04:08:21,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 04:08:21 BoogieIcfgContainer [2019-10-03 04:08:21,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 04:08:21,681 INFO L168 Benchmark]: Toolchain (without parser) took 6760.99 ms. Allocated memory was 136.8 MB in the beginning and 257.4 MB in the end (delta: 120.6 MB). Free memory was 88.0 MB in the beginning and 151.6 MB in the end (delta: -63.6 MB). Peak memory consumption was 57.0 MB. Max. memory is 7.1 GB. [2019-10-03 04:08:21,682 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 107.9 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 04:08:21,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 873.22 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 87.8 MB in the beginning and 150.9 MB in the end (delta: -63.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2019-10-03 04:08:21,684 INFO L168 Benchmark]: Boogie Preprocessor took 161.79 ms. Allocated memory is still 201.9 MB. Free memory was 150.9 MB in the beginning and 144.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 7.1 GB. [2019-10-03 04:08:21,685 INFO L168 Benchmark]: RCFGBuilder took 3631.87 ms. Allocated memory was 201.9 MB in the beginning and 257.4 MB in the end (delta: 55.6 MB). Free memory was 144.4 MB in the beginning and 184.3 MB in the end (delta: -39.9 MB). Peak memory consumption was 99.5 MB. Max. memory is 7.1 GB. [2019-10-03 04:08:21,686 INFO L168 Benchmark]: TraceAbstraction took 2086.76 ms. Allocated memory is still 257.4 MB. Free memory was 182.3 MB in the beginning and 151.6 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2019-10-03 04:08:21,690 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 107.9 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 873.22 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 87.8 MB in the beginning and 150.9 MB in the end (delta: -63.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 161.79 ms. Allocated memory is still 201.9 MB. Free memory was 150.9 MB in the beginning and 144.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3631.87 ms. Allocated memory was 201.9 MB in the beginning and 257.4 MB in the end (delta: 55.6 MB). Free memory was 144.4 MB in the beginning and 184.3 MB in the end (delta: -39.9 MB). Peak memory consumption was 99.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2086.76 ms. Allocated memory is still 257.4 MB. Free memory was 182.3 MB in the beginning and 151.6 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 528]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 230 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 4 OverallIterations, 7 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 495 SDtfs, 129 SDslu, 821 SDs, 0 SdLazy, 22 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.3448275862068964 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 175 ConstructedInterpolants, 0 QuantifiedInterpolants, 31635 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 113/117 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...