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/heap-data/shared_mem2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:10,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:10,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:10,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:10,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:10,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:10,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:10,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:10,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:10,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:10,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:10,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:10,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:10,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:10,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:10,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:10,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:10,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:10,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:10,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:10,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:10,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:10,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:10,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:10,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:10,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:10,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:10,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:10,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:10,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:10,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:10,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:10,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:10,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:10,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:10,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:10,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:10,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:10,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:10,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:10,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:10,582 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 [2019-09-20 13:29:10,597 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:10,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:10,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:10,598 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:10,598 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:10,598 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:10,599 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:10,599 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:10,599 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:10,599 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:10,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:10,600 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:10,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:10,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:10,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:10,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:10,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:10,601 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:10,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:10,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:10,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:10,602 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:10,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:10,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:10,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:10,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:10,603 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:10,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:10,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:10,604 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:10,630 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:10,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:10,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:10,646 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:10,646 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:10,647 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/shared_mem2.i [2019-09-20 13:29:10,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50e2dd30b/992957533da54d4fb8bb29dd48157236/FLAGb81ee1806 [2019-09-20 13:29:11,211 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:11,212 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/shared_mem2.i [2019-09-20 13:29:11,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50e2dd30b/992957533da54d4fb8bb29dd48157236/FLAGb81ee1806 [2019-09-20 13:29:11,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50e2dd30b/992957533da54d4fb8bb29dd48157236 [2019-09-20 13:29:11,481 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:11,483 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:11,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:11,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:11,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:11,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:11" (1/1) ... [2019-09-20 13:29:11,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa1e423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:11, skipping insertion in model container [2019-09-20 13:29:11,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:11" (1/1) ... [2019-09-20 13:29:11,501 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:11,545 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:11,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:11,983 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:12,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:12,089 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:12,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:12 WrapperNode [2019-09-20 13:29:12,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:12,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:12,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:12,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:12,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:12" (1/1) ... [2019-09-20 13:29:12,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:12" (1/1) ... [2019-09-20 13:29:12,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:12" (1/1) ... [2019-09-20 13:29:12,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:12" (1/1) ... [2019-09-20 13:29:12,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:12" (1/1) ... [2019-09-20 13:29:12,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:12" (1/1) ... [2019-09-20 13:29:12,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:12" (1/1) ... [2019-09-20 13:29:12,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:12,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:12,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:12,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:12,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:12" (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 [2019-09-20 13:29:12,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:12,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:12,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-20 13:29:12,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-20 13:29:12,223 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:12,224 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-20 13:29:12,224 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-20 13:29:12,224 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-20 13:29:12,224 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-20 13:29:12,225 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-20 13:29:12,225 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-20 13:29:12,225 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-20 13:29:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-20 13:29:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-20 13:29:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-20 13:29:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-20 13:29:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-20 13:29:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-20 13:29:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-20 13:29:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-20 13:29:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-20 13:29:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-20 13:29:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-20 13:29:12,229 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-20 13:29:12,229 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-20 13:29:12,229 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-20 13:29:12,229 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-20 13:29:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-20 13:29:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-20 13:29:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-20 13:29:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-20 13:29:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-20 13:29:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-20 13:29:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-20 13:29:12,231 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-20 13:29:12,231 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-20 13:29:12,231 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-20 13:29:12,231 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-20 13:29:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-20 13:29:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-20 13:29:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-20 13:29:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-20 13:29:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-20 13:29:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-20 13:29:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-20 13:29:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-20 13:29:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-20 13:29:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-20 13:29:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-20 13:29:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-20 13:29:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-20 13:29:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-20 13:29:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-20 13:29:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-20 13:29:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-20 13:29:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-20 13:29:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-20 13:29:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:29:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-20 13:29:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-20 13:29:12,236 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-20 13:29:12,236 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-20 13:29:12,236 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-20 13:29:12,237 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-20 13:29:12,237 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-20 13:29:12,237 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-20 13:29:12,238 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-20 13:29:12,238 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-20 13:29:12,238 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-20 13:29:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-20 13:29:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-20 13:29:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-20 13:29:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-20 13:29:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-20 13:29:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-20 13:29:12,240 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-20 13:29:12,240 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-20 13:29:12,240 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-20 13:29:12,240 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-20 13:29:12,241 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-20 13:29:12,241 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-20 13:29:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-20 13:29:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-20 13:29:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-20 13:29:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-20 13:29:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-20 13:29:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-20 13:29:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-20 13:29:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-20 13:29:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-20 13:29:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-20 13:29:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-20 13:29:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-20 13:29:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-20 13:29:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-20 13:29:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-20 13:29:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-20 13:29:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-20 13:29:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-20 13:29:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-20 13:29:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-20 13:29:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-20 13:29:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-20 13:29:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-20 13:29:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-20 13:29:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-20 13:29:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-20 13:29:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-20 13:29:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:12,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:12,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:12,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:12,770 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:12,770 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-20 13:29:12,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:12 BoogieIcfgContainer [2019-09-20 13:29:12,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:12,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:12,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:12,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:12,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:11" (1/3) ... [2019-09-20 13:29:12,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11bad86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:12, skipping insertion in model container [2019-09-20 13:29:12,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:12" (2/3) ... [2019-09-20 13:29:12,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11bad86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:12, skipping insertion in model container [2019-09-20 13:29:12,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:12" (3/3) ... [2019-09-20 13:29:12,782 INFO L109 eAbstractionObserver]: Analyzing ICFG shared_mem2.i [2019-09-20 13:29:12,792 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:12,801 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:12,816 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:12,836 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:12,836 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:12,836 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:12,836 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:12,837 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:12,838 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:12,838 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:12,838 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:12,852 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-09-20 13:29:12,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-20 13:29:12,862 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:12,862 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:12,864 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:12,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:12,870 INFO L82 PathProgramCache]: Analyzing trace with hash 976014476, now seen corresponding path program 1 times [2019-09-20 13:29:12,872 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:12,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:12,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:12,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:12,933 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:13,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:13,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:13,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:13,040 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:13,045 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:13,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:13,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:13,064 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-09-20 13:29:13,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:13,082 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2019-09-20 13:29:13,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:13,083 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-09-20 13:29:13,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:13,091 INFO L225 Difference]: With dead ends: 22 [2019-09-20 13:29:13,091 INFO L226 Difference]: Without dead ends: 18 [2019-09-20 13:29:13,092 INFO L636 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 [2019-09-20 13:29:13,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-09-20 13:29:13,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-09-20 13:29:13,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-20 13:29:13,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-09-20 13:29:13,123 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 12 [2019-09-20 13:29:13,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:13,124 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-09-20 13:29:13,124 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:13,124 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-09-20 13:29:13,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-20 13:29:13,125 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:13,125 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:13,126 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:13,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:13,126 INFO L82 PathProgramCache]: Analyzing trace with hash 2140991581, now seen corresponding path program 1 times [2019-09-20 13:29:13,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:13,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:13,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:13,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:13,132 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:13,270 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:13,270 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:29:13,271 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:13,272 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:29:13,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:29:13,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:29:13,273 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 5 states. [2019-09-20 13:29:13,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:13,392 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2019-09-20 13:29:13,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:29:13,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-09-20 13:29:13,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:13,394 INFO L225 Difference]: With dead ends: 26 [2019-09-20 13:29:13,394 INFO L226 Difference]: Without dead ends: 26 [2019-09-20 13:29:13,395 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:13,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-09-20 13:29:13,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-09-20 13:29:13,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-20 13:29:13,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2019-09-20 13:29:13,400 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 14 [2019-09-20 13:29:13,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:13,401 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2019-09-20 13:29:13,401 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:29:13,401 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2019-09-20 13:29:13,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-20 13:29:13,402 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:13,402 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:13,403 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:13,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:13,403 INFO L82 PathProgramCache]: Analyzing trace with hash -295797189, now seen corresponding path program 1 times [2019-09-20 13:29:13,403 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:13,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:13,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:13,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:13,409 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:13,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:13,599 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:29:13,599 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:29:13,600 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2019-09-20 13:29:13,603 INFO L207 CegarAbsIntRunner]: [2], [3], [4], [9], [12], [14], [17], [24], [29], [32], [45], [48], [49], [60], [61], [62] [2019-09-20 13:29:13,643 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:29:13,643 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:29:13,716 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:29:13,719 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 35 variables. [2019-09-20 13:29:13,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:13,722 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:29:13,750 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-20 13:29:13,750 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:29:13,751 INFO L420 sIntCurrentIteration]: We unified 16 AI predicates to 16 [2019-09-20 13:29:13,752 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:29:13,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:29:13,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-09-20 13:29:13,753 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:13,753 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:13,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:13,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:13,754 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand 2 states. [2019-09-20 13:29:13,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:13,754 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-20 13:29:13,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:13,755 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-09-20 13:29:13,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:13,755 INFO L225 Difference]: With dead ends: 6 [2019-09-20 13:29:13,755 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:13,756 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:13,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:13,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:13,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:13,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:13,756 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-09-20 13:29:13,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:13,757 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:13,757 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:13,757 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:13,757 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:13,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:13 BoogieIcfgContainer [2019-09-20 13:29:13,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:13,765 INFO L168 Benchmark]: Toolchain (without parser) took 2281.53 ms. Allocated memory was 133.7 MB in the beginning and 227.5 MB in the end (delta: 93.8 MB). Free memory was 87.3 MB in the beginning and 178.3 MB in the end (delta: -91.0 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:13,766 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 133.7 MB. Free memory is still 106.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:29:13,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.23 ms. Allocated memory was 133.7 MB in the beginning and 202.4 MB in the end (delta: 68.7 MB). Free memory was 86.9 MB in the beginning and 166.9 MB in the end (delta: -80.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:13,768 INFO L168 Benchmark]: Boogie Preprocessor took 61.26 ms. Allocated memory is still 202.4 MB. Free memory was 166.9 MB in the beginning and 164.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:13,769 INFO L168 Benchmark]: RCFGBuilder took 620.32 ms. Allocated memory is still 202.4 MB. Free memory was 164.2 MB in the beginning and 121.5 MB in the end (delta: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:13,770 INFO L168 Benchmark]: TraceAbstraction took 988.70 ms. Allocated memory was 202.4 MB in the beginning and 227.5 MB in the end (delta: 25.2 MB). Free memory was 121.5 MB in the beginning and 178.3 MB in the end (delta: -56.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:29:13,774 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 133.7 MB. Free memory is still 106.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 606.23 ms. Allocated memory was 133.7 MB in the beginning and 202.4 MB in the end (delta: 68.7 MB). Free memory was 86.9 MB in the beginning and 166.9 MB in the end (delta: -80.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.26 ms. Allocated memory is still 202.4 MB. Free memory was 166.9 MB in the beginning and 164.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 620.32 ms. Allocated memory is still 202.4 MB. Free memory was 164.2 MB in the beginning and 121.5 MB in the end (delta: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 988.70 ms. Allocated memory was 202.4 MB in the beginning and 227.5 MB in the end (delta: 25.2 MB). Free memory was 121.5 MB in the beginning and 178.3 MB in the end (delta: -56.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 590]: 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 5 procedures, 28 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 8 SDslu, 45 SDs, 0 SdLazy, 22 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, 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, 0.84375 AbsIntWeakeningRatio, 1.3125 AbsIntAvgWeakeningVarsNumRemoved, 0.375 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 2695 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...