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_dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 09:07:50,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 09:07:50,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 09:07:50,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 09:07:50,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 09:07:50,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 09:07:50,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 09:07:50,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 09:07:50,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 09:07:50,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 09:07:50,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 09:07:50,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 09:07:50,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 09:07:50,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 09:07:50,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 09:07:50,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 09:07:50,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 09:07:50,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 09:07:50,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 09:07:50,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 09:07:50,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 09:07:50,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 09:07:50,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 09:07:50,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 09:07:50,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 09:07:50,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 09:07:50,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 09:07:50,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 09:07:50,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 09:07:50,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 09:07:50,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 09:07:50,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 09:07:50,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 09:07:50,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 09:07:50,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 09:07:50,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 09:07:50,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 09:07:50,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 09:07:50,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 09:07:50,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 09:07:50,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 09:07:50,358 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 [2019-09-10 09:07:50,375 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 09:07:50,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 09:07:50,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 09:07:50,376 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 09:07:50,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 09:07:50,377 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 09:07:50,377 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 09:07:50,377 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 09:07:50,377 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 09:07:50,377 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 09:07:50,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 09:07:50,378 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 09:07:50,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 09:07:50,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 09:07:50,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 09:07:50,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 09:07:50,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 09:07:50,379 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 09:07:50,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 09:07:50,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 09:07:50,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 09:07:50,380 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 09:07:50,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 09:07:50,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 09:07:50,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 09:07:50,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 09:07:50,381 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 09:07:50,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 09:07:50,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 09:07:50,382 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 09:07:50,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 09:07:50,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 09:07:50,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 09:07:50,426 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 09:07:50,426 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 09:07:50,427 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_dekker.i [2019-09-10 09:07:50,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de2335756/de814a8e754e4b8a9380b31c0625a896/FLAGa5533ae3e [2019-09-10 09:07:51,040 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 09:07:51,041 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_dekker.i [2019-09-10 09:07:51,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de2335756/de814a8e754e4b8a9380b31c0625a896/FLAGa5533ae3e [2019-09-10 09:07:51,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de2335756/de814a8e754e4b8a9380b31c0625a896 [2019-09-10 09:07:51,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 09:07:51,363 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 09:07:51,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 09:07:51,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 09:07:51,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 09:07:51,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 09:07:51" (1/1) ... [2019-09-10 09:07:51,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a4ea9bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:07:51, skipping insertion in model container [2019-09-10 09:07:51,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 09:07:51" (1/1) ... [2019-09-10 09:07:51,378 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 09:07:51,447 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 09:07:51,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 09:07:52,018 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 09:07:52,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 09:07:52,222 INFO L192 MainTranslator]: Completed translation [2019-09-10 09:07:52,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:07:52 WrapperNode [2019-09-10 09:07:52,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 09:07:52,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 09:07:52,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 09:07:52,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 09:07:52,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:07:52" (1/1) ... [2019-09-10 09:07:52,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:07:52" (1/1) ... [2019-09-10 09:07:52,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:07:52" (1/1) ... [2019-09-10 09:07:52,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:07:52" (1/1) ... [2019-09-10 09:07:52,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:07:52" (1/1) ... [2019-09-10 09:07:52,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:07:52" (1/1) ... [2019-09-10 09:07:52,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:07:52" (1/1) ... [2019-09-10 09:07:52,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 09:07:52,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 09:07:52,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 09:07:52,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 09:07:52,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:07:52" (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 [2019-09-10 09:07:52,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 09:07:52,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 09:07:52,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2019-09-10 09:07:52,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-10 09:07:52,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-10 09:07:52,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-09-10 09:07:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-09-10 09:07:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-09-10 09:07:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-10 09:07:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2019-09-10 09:07:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2019-09-10 09:07:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_destroy [2019-09-10 09:07:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2019-09-10 09:07:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2019-09-10 09:07:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_init [2019-09-10 09:07:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_signal [2019-09-10 09:07:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_broadcast [2019-09-10 09:07:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_wait [2019-09-10 09:07:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assert [2019-09-10 09:07:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_assume [2019-09-10 09:07:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2019-09-10 09:07:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2019-09-10 09:07:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-09-10 09:07:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-09-10 09:07:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main_thread [2019-09-10 09:07:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 09:07:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 09:07:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 09:07:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-10 09:07:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 09:07:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 09:07:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 09:07:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 09:07:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 09:07:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 09:07:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 09:07:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 09:07:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 09:07:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 09:07:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 09:07:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 09:07:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 09:07:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 09:07:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 09:07:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 09:07:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 09:07:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 09:07:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-10 09:07:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-10 09:07:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-09-10 09:07:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-09-10 09:07:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-09-10 09:07:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 09:07:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 09:07:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 09:07:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 09:07:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 09:07:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 09:07:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 09:07:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 09:07:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 09:07:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 09:07:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 09:07:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 09:07:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 09:07:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 09:07:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 09:07:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 09:07:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 09:07:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 09:07:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 09:07:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 09:07:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 09:07:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 09:07:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 09:07:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 09:07:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 09:07:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 09:07:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 09:07:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 09:07:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 09:07:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 09:07:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 09:07:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 09:07:52,483 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 09:07:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 09:07:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 09:07:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 09:07:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 09:07:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 09:07:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 09:07:52,484 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 09:07:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 09:07:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 09:07:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 09:07:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 09:07:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 09:07:52,485 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 09:07:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 09:07:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 09:07:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 09:07:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 09:07:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 09:07:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 09:07:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 09:07:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 09:07:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 09:07:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 09:07:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 09:07:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 09:07:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 09:07:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 09:07:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 09:07:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 09:07:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 09:07:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 09:07:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 09:07:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 09:07:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 09:07:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 09:07:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 09:07:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 09:07:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 09:07:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 09:07:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 09:07:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 09:07:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 09:07:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 09:07:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 09:07:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 09:07:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 09:07:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 09:07:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 09:07:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 09:07:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 09:07:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 09:07:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 09:07:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 09:07:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 09:07:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2019-09-10 09:07:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2019-09-10 09:07:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 09:07:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2019-09-10 09:07:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2019-09-10 09:07:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_destroy [2019-09-10 09:07:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 09:07:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 09:07:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2019-09-10 09:07:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2019-09-10 09:07:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_init [2019-09-10 09:07:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_signal [2019-09-10 09:07:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 09:07:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 09:07:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_broadcast [2019-09-10 09:07:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_wait [2019-09-10 09:07:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assert [2019-09-10 09:07:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_assume [2019-09-10 09:07:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2019-09-10 09:07:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2019-09-10 09:07:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-09-10 09:07:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-09-10 09:07:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure main_thread [2019-09-10 09:07:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 09:07:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 09:07:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 09:07:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 09:07:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2019-09-10 09:07:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 09:07:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 09:07:52,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 09:07:53,231 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !(0 != ~__CS_ret~0 % 256); [2019-09-10 09:07:53,232 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume 0 != ~__CS_ret~0 % 256;#res.base, #res.offset := 0, 0; [2019-09-10 09:07:53,329 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !(0 != ~__CS_ret~0 % 256); [2019-09-10 09:07:53,330 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume 0 != ~__CS_ret~0 % 256;#res.base, #res.offset := 0, 0; [2019-09-10 09:07:55,889 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 09:07:55,889 INFO L283 CfgBuilder]: Removed 8 assume(true) statements. [2019-09-10 09:07:55,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 09:07:55 BoogieIcfgContainer [2019-09-10 09:07:55,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 09:07:55,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 09:07:55,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 09:07:55,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 09:07:55,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 09:07:51" (1/3) ... [2019-09-10 09:07:55,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bce15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 09:07:55, skipping insertion in model container [2019-09-10 09:07:55,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:07:52" (2/3) ... [2019-09-10 09:07:55,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bce15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 09:07:55, skipping insertion in model container [2019-09-10 09:07:55,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 09:07:55" (3/3) ... [2019-09-10 09:07:55,898 INFO L109 eAbstractionObserver]: Analyzing ICFG cs_dekker.i [2019-09-10 09:07:55,907 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 09:07:55,919 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 09:07:55,935 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 09:07:55,967 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 09:07:55,967 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 09:07:55,967 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 09:07:55,967 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 09:07:55,967 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 09:07:55,968 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 09:07:55,968 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 09:07:55,968 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 09:07:55,986 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states. [2019-09-10 09:07:55,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-10 09:07:55,996 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:07:55,997 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 09:07:55,999 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:07:56,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:07:56,005 INFO L82 PathProgramCache]: Analyzing trace with hash -585036572, now seen corresponding path program 1 times [2019-09-10 09:07:56,007 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:07:56,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:07:56,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:07:56,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:07:56,066 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:07:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:07:56,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:07:56,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:07:56,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 09:07:56,289 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:07:56,293 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 09:07:56,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 09:07:56,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 09:07:56,305 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 2 states. [2019-09-10 09:07:56,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:07:56,334 INFO L93 Difference]: Finished difference Result 89 states and 119 transitions. [2019-09-10 09:07:56,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 09:07:56,336 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-09-10 09:07:56,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:07:56,350 INFO L225 Difference]: With dead ends: 89 [2019-09-10 09:07:56,350 INFO L226 Difference]: Without dead ends: 82 [2019-09-10 09:07:56,353 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 09:07:56,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-09-10 09:07:56,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-09-10 09:07:56,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-09-10 09:07:56,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 112 transitions. [2019-09-10 09:07:56,427 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 112 transitions. Word has length 18 [2019-09-10 09:07:56,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:07:56,427 INFO L475 AbstractCegarLoop]: Abstraction has 82 states and 112 transitions. [2019-09-10 09:07:56,427 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 09:07:56,427 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 112 transitions. [2019-09-10 09:07:56,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-10 09:07:56,431 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:07:56,431 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 09:07:56,432 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:07:56,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:07:56,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1386441782, now seen corresponding path program 1 times [2019-09-10 09:07:56,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:07:56,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:07:56,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:07:56,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:07:56,440 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:07:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:07:56,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:07:56,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:07:56,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 09:07:56,697 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:07:56,698 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 09:07:56,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 09:07:56,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:07:56,699 INFO L87 Difference]: Start difference. First operand 82 states and 112 transitions. Second operand 3 states. [2019-09-10 09:07:56,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:07:56,770 INFO L93 Difference]: Finished difference Result 86 states and 117 transitions. [2019-09-10 09:07:56,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 09:07:56,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-09-10 09:07:56,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:07:56,775 INFO L225 Difference]: With dead ends: 86 [2019-09-10 09:07:56,775 INFO L226 Difference]: Without dead ends: 86 [2019-09-10 09:07:56,777 INFO L628 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 [2019-09-10 09:07:56,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-09-10 09:07:56,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2019-09-10 09:07:56,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-09-10 09:07:56,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 113 transitions. [2019-09-10 09:07:56,799 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 113 transitions. Word has length 18 [2019-09-10 09:07:56,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:07:56,800 INFO L475 AbstractCegarLoop]: Abstraction has 83 states and 113 transitions. [2019-09-10 09:07:56,802 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 09:07:56,802 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 113 transitions. [2019-09-10 09:07:56,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-10 09:07:56,803 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:07:56,804 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 09:07:56,804 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:07:56,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:07:56,804 INFO L82 PathProgramCache]: Analyzing trace with hash -590751046, now seen corresponding path program 1 times [2019-09-10 09:07:56,804 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:07:56,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:07:56,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:07:56,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:07:56,808 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:07:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:07:56,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:07:56,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:07:56,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 09:07:56,910 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:07:56,911 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 09:07:56,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 09:07:56,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:07:56,912 INFO L87 Difference]: Start difference. First operand 83 states and 113 transitions. Second operand 3 states. [2019-09-10 09:07:56,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:07:56,948 INFO L93 Difference]: Finished difference Result 85 states and 115 transitions. [2019-09-10 09:07:56,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 09:07:56,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-09-10 09:07:56,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:07:56,950 INFO L225 Difference]: With dead ends: 85 [2019-09-10 09:07:56,951 INFO L226 Difference]: Without dead ends: 85 [2019-09-10 09:07:56,951 INFO L628 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 [2019-09-10 09:07:56,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-09-10 09:07:56,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2019-09-10 09:07:56,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-09-10 09:07:56,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 114 transitions. [2019-09-10 09:07:56,963 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 114 transitions. Word has length 21 [2019-09-10 09:07:56,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:07:56,964 INFO L475 AbstractCegarLoop]: Abstraction has 84 states and 114 transitions. [2019-09-10 09:07:56,964 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 09:07:56,964 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 114 transitions. [2019-09-10 09:07:56,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-09-10 09:07:56,965 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:07:56,965 INFO L399 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] [2019-09-10 09:07:56,965 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:07:56,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:07:56,966 INFO L82 PathProgramCache]: Analyzing trace with hash 701339836, now seen corresponding path program 1 times [2019-09-10 09:07:56,966 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:07:56,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:07:56,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:07:56,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:07:56,968 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:07:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:07:57,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 09:07:57,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:07:57,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 09:07:57,135 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:07:57,136 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 09:07:57,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 09:07:57,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 09:07:57,137 INFO L87 Difference]: Start difference. First operand 84 states and 114 transitions. Second operand 5 states. [2019-09-10 09:07:57,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:07:57,185 INFO L93 Difference]: Finished difference Result 151 states and 213 transitions. [2019-09-10 09:07:57,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 09:07:57,185 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-09-10 09:07:57,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:07:57,189 INFO L225 Difference]: With dead ends: 151 [2019-09-10 09:07:57,189 INFO L226 Difference]: Without dead ends: 145 [2019-09-10 09:07:57,190 INFO L628 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 [2019-09-10 09:07:57,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2019-09-10 09:07:57,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2019-09-10 09:07:57,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-09-10 09:07:57,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 205 transitions. [2019-09-10 09:07:57,208 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 205 transitions. Word has length 23 [2019-09-10 09:07:57,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:07:57,208 INFO L475 AbstractCegarLoop]: Abstraction has 145 states and 205 transitions. [2019-09-10 09:07:57,208 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 09:07:57,209 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 205 transitions. [2019-09-10 09:07:57,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 09:07:57,212 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:07:57,213 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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] [2019-09-10 09:07:57,213 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:07:57,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:07:57,213 INFO L82 PathProgramCache]: Analyzing trace with hash -93496220, now seen corresponding path program 1 times [2019-09-10 09:07:57,214 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:07:57,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:07:57,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:07:57,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:07:57,216 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:07:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:07:57,548 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-09-10 09:07:57,548 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 09:07:57,548 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 09:07:57,549 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 95 with the following transitions: [2019-09-10 09:07:57,552 INFO L207 CegarAbsIntRunner]: [0], [5], [8], [13], [18], [20], [25], [27], [32], [34], [38], [47], [73], [76], [78], [342], [343], [344], [350], [352], [358], [360], [362], [366], [370], [383], [385], [398], [400], [403], [405], [408], [415], [450], [453], [455], [476], [479], [495], [496], [498], [499], [504], [507], [511], [512], [528], [531], [535], [545], [546], [547], [548], [549], [550], [551], [552], [553], [554], [555], [556], [557], [558], [559], [560], [561], [562], [639], [640], [641], [643], [644], [645], [646], [647] [2019-09-10 09:07:57,613 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 09:07:57,613 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 09:07:57,676 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 09:07:57,678 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 50 root evaluator evaluations with a maximum evaluation depth of 0. Performed 50 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 95 variables. [2019-09-10 09:07:57,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:07:57,682 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 09:07:57,727 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 09:07:57,727 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 09:07:57,732 INFO L420 sIntCurrentIteration]: We unified 93 AI predicates to 93 [2019-09-10 09:07:57,732 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 09:07:57,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 09:07:57,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 09:07:57,733 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:07:57,734 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 09:07:57,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 09:07:57,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 09:07:57,734 INFO L87 Difference]: Start difference. First operand 145 states and 205 transitions. Second operand 2 states. [2019-09-10 09:07:57,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:07:57,735 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 09:07:57,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 09:07:57,735 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 94 [2019-09-10 09:07:57,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:07:57,735 INFO L225 Difference]: With dead ends: 2 [2019-09-10 09:07:57,736 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 09:07:57,736 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 09:07:57,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 09:07:57,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 09:07:57,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 09:07:57,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 09:07:57,737 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 94 [2019-09-10 09:07:57,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:07:57,737 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 09:07:57,737 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 09:07:57,738 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 09:07:57,738 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 09:07:57,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 09:07:57 BoogieIcfgContainer [2019-09-10 09:07:57,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 09:07:57,745 INFO L168 Benchmark]: Toolchain (without parser) took 6381.55 ms. Allocated memory was 141.6 MB in the beginning and 256.9 MB in the end (delta: 115.3 MB). Free memory was 87.9 MB in the beginning and 199.6 MB in the end (delta: -111.7 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-09-10 09:07:57,746 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.6 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. [2019-09-10 09:07:57,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 860.06 ms. Allocated memory was 141.6 MB in the beginning and 201.3 MB in the end (delta: 59.8 MB). Free memory was 87.5 MB in the beginning and 152.5 MB in the end (delta: -65.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2019-09-10 09:07:57,748 INFO L168 Benchmark]: Boogie Preprocessor took 162.35 ms. Allocated memory is still 201.3 MB. Free memory was 152.5 MB in the beginning and 146.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 7.1 GB. [2019-09-10 09:07:57,749 INFO L168 Benchmark]: RCFGBuilder took 3504.17 ms. Allocated memory was 201.3 MB in the beginning and 256.9 MB in the end (delta: 55.6 MB). Free memory was 146.0 MB in the beginning and 213.5 MB in the end (delta: -67.5 MB). Peak memory consumption was 101.6 MB. Max. memory is 7.1 GB. [2019-09-10 09:07:57,750 INFO L168 Benchmark]: TraceAbstraction took 1851.06 ms. Allocated memory is still 256.9 MB. Free memory was 213.5 MB in the beginning and 199.6 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-09-10 09:07:57,754 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.6 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 860.06 ms. Allocated memory was 141.6 MB in the beginning and 201.3 MB in the end (delta: 59.8 MB). Free memory was 87.5 MB in the beginning and 152.5 MB in the end (delta: -65.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 162.35 ms. Allocated memory is still 201.3 MB. Free memory was 152.5 MB in the beginning and 146.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3504.17 ms. Allocated memory was 201.3 MB in the beginning and 256.9 MB in the end (delta: 55.6 MB). Free memory was 146.0 MB in the beginning and 213.5 MB in the end (delta: -67.5 MB). Peak memory consumption was 101.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1851.06 ms. Allocated memory is still 256.9 MB. Free memory was 213.5 MB in the beginning and 199.6 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 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, 235 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 476 SDtfs, 95 SDslu, 586 SDs, 0 SdLazy, 20 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred in iteration=0, 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, 2.5376344086021505 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 169 ConstructedInterpolants, 0 QuantifiedInterpolants, 22641 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 55/59 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...