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/product-lines/minepump_spec3_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:29,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:29,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:29,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:29,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:29,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:29,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:29,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:29,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:29,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:29,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:29,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:29,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:29,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:29,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:29,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:29,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:29,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:29,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:29,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:29,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:29,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:29,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:29,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:29,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:29,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:29,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:29,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:29,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:29,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:29,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:29,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:29,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:29,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:29,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:29,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:29,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:29,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:29,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:29,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:29,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:29,273 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 13:30:29,293 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:29,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:29,294 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:29,294 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:29,295 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:29,295 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:29,296 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:29,296 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:29,296 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:29,296 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:29,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:29,299 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:29,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:29,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:29,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:29,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:29,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:29,300 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:29,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:29,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:29,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:29,302 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:29,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:29,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:29,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:29,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:29,303 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:29,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:29,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:29,303 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:29,359 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:29,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:29,379 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:29,380 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:29,381 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:29,382 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product45.cil.c [2019-09-20 13:30:29,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00dbe5fca/2f6b7e9f7d32481793c675ca72b73db2/FLAGd811f37a3 [2019-09-20 13:30:30,054 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:30,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product45.cil.c [2019-09-20 13:30:30,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00dbe5fca/2f6b7e9f7d32481793c675ca72b73db2/FLAGd811f37a3 [2019-09-20 13:30:30,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00dbe5fca/2f6b7e9f7d32481793c675ca72b73db2 [2019-09-20 13:30:30,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:30,289 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:30,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:30,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:30,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:30,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:30" (1/1) ... [2019-09-20 13:30:30,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc1d1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:30, skipping insertion in model container [2019-09-20 13:30:30,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:30" (1/1) ... [2019-09-20 13:30:30,305 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:30,365 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:30,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:30,854 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:30,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:30,991 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:30,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:30 WrapperNode [2019-09-20 13:30:30,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:30,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:30,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:30,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:31,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:30" (1/1) ... [2019-09-20 13:30:31,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:30" (1/1) ... [2019-09-20 13:30:31,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:30" (1/1) ... [2019-09-20 13:30:31,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:30" (1/1) ... [2019-09-20 13:30:31,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:30" (1/1) ... [2019-09-20 13:30:31,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:30" (1/1) ... [2019-09-20 13:30:31,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:30" (1/1) ... [2019-09-20 13:30:31,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:31,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:31,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:31,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:31,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:30" (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 13:30:31,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-09-20 13:30:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:30:31,183 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:31,183 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:31,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:31,185 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:30:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-09-20 13:30:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:30:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:31,190 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:31,190 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:31,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:31,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:31,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:31,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:31,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:31,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:31,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-09-20 13:30:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:30:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:30:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:30:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-09-20 13:30:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:32,345 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:32,345 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:32,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:32 BoogieIcfgContainer [2019-09-20 13:30:32,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:32,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:32,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:32,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:32,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:30" (1/3) ... [2019-09-20 13:30:32,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7198138b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:32, skipping insertion in model container [2019-09-20 13:30:32,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:30" (2/3) ... [2019-09-20 13:30:32,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7198138b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:32, skipping insertion in model container [2019-09-20 13:30:32,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:32" (3/3) ... [2019-09-20 13:30:32,355 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2019-09-20 13:30:32,365 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:32,373 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:32,390 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:32,413 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:32,413 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:32,413 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:32,414 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:32,414 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:32,414 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:32,414 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:32,414 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:32,433 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2019-09-20 13:30:32,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:32,448 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:32,449 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:32,452 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:32,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:32,458 INFO L82 PathProgramCache]: Analyzing trace with hash -2079927920, now seen corresponding path program 1 times [2019-09-20 13:30:32,460 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:32,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:32,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:32,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:32,525 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:32,894 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 13:30:32,896 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:32,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:32,897 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:32,903 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:32,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:32,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:32,923 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2019-09-20 13:30:32,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:32,964 INFO L93 Difference]: Finished difference Result 147 states and 173 transitions. [2019-09-20 13:30:32,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:32,969 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-09-20 13:30:32,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:32,988 INFO L225 Difference]: With dead ends: 147 [2019-09-20 13:30:32,997 INFO L226 Difference]: Without dead ends: 136 [2019-09-20 13:30:33,001 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 13:30:33,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-09-20 13:30:33,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-09-20 13:30:33,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-09-20 13:30:33,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 161 transitions. [2019-09-20 13:30:33,055 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 161 transitions. Word has length 52 [2019-09-20 13:30:33,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:33,055 INFO L475 AbstractCegarLoop]: Abstraction has 136 states and 161 transitions. [2019-09-20 13:30:33,055 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:33,055 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 161 transitions. [2019-09-20 13:30:33,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-20 13:30:33,059 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:33,059 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:33,060 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:33,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:33,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1292445192, now seen corresponding path program 1 times [2019-09-20 13:30:33,060 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:33,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:33,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:33,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:33,063 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:33,205 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 13:30:33,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:33,205 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:33,205 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:33,208 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:33,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:33,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:33,209 INFO L87 Difference]: Start difference. First operand 136 states and 161 transitions. Second operand 3 states. [2019-09-20 13:30:33,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:33,238 INFO L93 Difference]: Finished difference Result 127 states and 149 transitions. [2019-09-20 13:30:33,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:33,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-09-20 13:30:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:33,241 INFO L225 Difference]: With dead ends: 127 [2019-09-20 13:30:33,241 INFO L226 Difference]: Without dead ends: 127 [2019-09-20 13:30:33,242 INFO L636 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 [2019-09-20 13:30:33,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-09-20 13:30:33,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2019-09-20 13:30:33,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-09-20 13:30:33,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 149 transitions. [2019-09-20 13:30:33,265 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 149 transitions. Word has length 53 [2019-09-20 13:30:33,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:33,265 INFO L475 AbstractCegarLoop]: Abstraction has 127 states and 149 transitions. [2019-09-20 13:30:33,265 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:33,266 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 149 transitions. [2019-09-20 13:30:33,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:30:33,272 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:33,273 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:33,273 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:33,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:33,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1103725481, now seen corresponding path program 1 times [2019-09-20 13:30:33,276 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:33,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:33,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:33,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:33,280 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:33,478 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 13:30:33,479 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:33,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:33,479 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:33,481 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:33,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:33,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:33,481 INFO L87 Difference]: Start difference. First operand 127 states and 149 transitions. Second operand 7 states. [2019-09-20 13:30:33,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:33,797 INFO L93 Difference]: Finished difference Result 127 states and 148 transitions. [2019-09-20 13:30:33,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:33,798 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-20 13:30:33,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:33,800 INFO L225 Difference]: With dead ends: 127 [2019-09-20 13:30:33,801 INFO L226 Difference]: Without dead ends: 127 [2019-09-20 13:30:33,801 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:33,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-09-20 13:30:33,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2019-09-20 13:30:33,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-09-20 13:30:33,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 148 transitions. [2019-09-20 13:30:33,813 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 148 transitions. Word has length 57 [2019-09-20 13:30:33,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:33,813 INFO L475 AbstractCegarLoop]: Abstraction has 127 states and 148 transitions. [2019-09-20 13:30:33,813 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:33,813 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 148 transitions. [2019-09-20 13:30:33,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-20 13:30:33,816 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:33,816 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:33,816 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:33,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:33,817 INFO L82 PathProgramCache]: Analyzing trace with hash -2144023801, now seen corresponding path program 1 times [2019-09-20 13:30:33,817 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:33,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:33,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:33,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:33,821 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:33,969 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 13:30:33,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:33,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:30:33,971 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:33,971 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:30:33,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:30:33,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:30:33,972 INFO L87 Difference]: Start difference. First operand 127 states and 148 transitions. Second operand 5 states. [2019-09-20 13:30:34,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:34,593 INFO L93 Difference]: Finished difference Result 240 states and 278 transitions. [2019-09-20 13:30:34,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:34,594 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-09-20 13:30:34,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:34,597 INFO L225 Difference]: With dead ends: 240 [2019-09-20 13:30:34,597 INFO L226 Difference]: Without dead ends: 240 [2019-09-20 13:30:34,598 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:34,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2019-09-20 13:30:34,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 222. [2019-09-20 13:30:34,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-09-20 13:30:34,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 254 transitions. [2019-09-20 13:30:34,618 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 254 transitions. Word has length 70 [2019-09-20 13:30:34,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:34,618 INFO L475 AbstractCegarLoop]: Abstraction has 222 states and 254 transitions. [2019-09-20 13:30:34,619 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:30:34,619 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 254 transitions. [2019-09-20 13:30:34,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-20 13:30:34,620 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:34,621 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:34,621 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:34,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:34,621 INFO L82 PathProgramCache]: Analyzing trace with hash 568030072, now seen corresponding path program 1 times [2019-09-20 13:30:34,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:34,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:34,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:34,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:34,624 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:34,752 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 13:30:34,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:34,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:34,753 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:34,754 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:34,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:34,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:34,755 INFO L87 Difference]: Start difference. First operand 222 states and 254 transitions. Second operand 6 states. [2019-09-20 13:30:34,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:34,957 INFO L93 Difference]: Finished difference Result 348 states and 404 transitions. [2019-09-20 13:30:34,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:34,958 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-09-20 13:30:34,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:34,962 INFO L225 Difference]: With dead ends: 348 [2019-09-20 13:30:34,962 INFO L226 Difference]: Without dead ends: 348 [2019-09-20 13:30:34,963 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:34,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-09-20 13:30:34,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 344. [2019-09-20 13:30:34,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2019-09-20 13:30:34,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 400 transitions. [2019-09-20 13:30:35,000 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 400 transitions. Word has length 84 [2019-09-20 13:30:35,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:35,000 INFO L475 AbstractCegarLoop]: Abstraction has 344 states and 400 transitions. [2019-09-20 13:30:35,000 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:35,000 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 400 transitions. [2019-09-20 13:30:35,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:30:35,005 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:35,005 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:35,006 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:35,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:35,006 INFO L82 PathProgramCache]: Analyzing trace with hash 538208210, now seen corresponding path program 1 times [2019-09-20 13:30:35,007 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:35,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:35,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,010 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:35,151 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 13:30:35,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:35,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:35,151 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:35,152 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:35,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:35,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:35,153 INFO L87 Difference]: Start difference. First operand 344 states and 400 transitions. Second operand 6 states. [2019-09-20 13:30:35,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:35,435 INFO L93 Difference]: Finished difference Result 537 states and 640 transitions. [2019-09-20 13:30:35,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:35,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2019-09-20 13:30:35,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:35,440 INFO L225 Difference]: With dead ends: 537 [2019-09-20 13:30:35,440 INFO L226 Difference]: Without dead ends: 537 [2019-09-20 13:30:35,440 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:35,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-09-20 13:30:35,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 519. [2019-09-20 13:30:35,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 519 states. [2019-09-20 13:30:35,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 617 transitions. [2019-09-20 13:30:35,469 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 617 transitions. Word has length 88 [2019-09-20 13:30:35,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:35,470 INFO L475 AbstractCegarLoop]: Abstraction has 519 states and 617 transitions. [2019-09-20 13:30:35,470 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:35,470 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 617 transitions. [2019-09-20 13:30:35,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:30:35,473 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:35,473 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:35,473 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:35,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:35,474 INFO L82 PathProgramCache]: Analyzing trace with hash -384475373, now seen corresponding path program 1 times [2019-09-20 13:30:35,474 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:35,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:35,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,476 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:35,540 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 13:30:35,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:35,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:30:35,541 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:35,541 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:30:35,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:30:35,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:30:35,542 INFO L87 Difference]: Start difference. First operand 519 states and 617 transitions. Second operand 5 states. [2019-09-20 13:30:35,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:35,565 INFO L93 Difference]: Finished difference Result 529 states and 627 transitions. [2019-09-20 13:30:35,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:30:35,565 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2019-09-20 13:30:35,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:35,569 INFO L225 Difference]: With dead ends: 529 [2019-09-20 13:30:35,569 INFO L226 Difference]: Without dead ends: 529 [2019-09-20 13:30:35,569 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:30:35,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2019-09-20 13:30:35,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 523. [2019-09-20 13:30:35,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2019-09-20 13:30:35,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 620 transitions. [2019-09-20 13:30:35,593 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 620 transitions. Word has length 88 [2019-09-20 13:30:35,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:35,593 INFO L475 AbstractCegarLoop]: Abstraction has 523 states and 620 transitions. [2019-09-20 13:30:35,594 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:30:35,594 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 620 transitions. [2019-09-20 13:30:35,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:30:35,596 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:35,596 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:35,596 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:35,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:35,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1228480875, now seen corresponding path program 1 times [2019-09-20 13:30:35,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:35,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:35,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,599 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:35,692 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 13:30:35,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:35,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:30:35,693 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:35,694 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:30:35,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:30:35,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:35,694 INFO L87 Difference]: Start difference. First operand 523 states and 620 transitions. Second operand 9 states. [2019-09-20 13:30:35,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:35,751 INFO L93 Difference]: Finished difference Result 540 states and 643 transitions. [2019-09-20 13:30:35,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:30:35,752 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2019-09-20 13:30:35,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:35,756 INFO L225 Difference]: With dead ends: 540 [2019-09-20 13:30:35,756 INFO L226 Difference]: Without dead ends: 540 [2019-09-20 13:30:35,757 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:35,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2019-09-20 13:30:35,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 530. [2019-09-20 13:30:35,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2019-09-20 13:30:35,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 627 transitions. [2019-09-20 13:30:35,779 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 627 transitions. Word has length 88 [2019-09-20 13:30:35,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:35,780 INFO L475 AbstractCegarLoop]: Abstraction has 530 states and 627 transitions. [2019-09-20 13:30:35,780 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:30:35,780 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 627 transitions. [2019-09-20 13:30:35,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-09-20 13:30:35,782 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:35,782 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:35,783 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:35,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:35,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1576561429, now seen corresponding path program 1 times [2019-09-20 13:30:35,783 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:35,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:35,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,787 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:30:35,894 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:30:35,894 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:30:35,895 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 101 with the following transitions: [2019-09-20 13:30:35,897 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [99], [103], [104], [105], [120], [123], [125], [134], [138], [142], [145], [150], [156], [158], [161], [185], [187], [190], [195], [196], [197], [198], [200], [205], [207], [208], [209], [210], [216], [220], [262], [266], [267], [270], [271], [274], [276], [279], [289], [290], [291], [314], [316], [317], [386], [387], [397], [399], [404], [406], [409], [411], [416], [423], [431], [432], [433], [434], [435], [436], [437], [438], [439], [477], [478], [479], [480], [483], [487], [488], [491], [492], [495], [496], [497], [503], [504], [505], [506], [513], [515], [516], [521], [522], [523], [524], [525], [526], [527], [529], [530], [531] [2019-09-20 13:30:35,941 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:30:35,941 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:30:36,022 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:30:36,024 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-20 13:30:36,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:36,029 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:30:36,103 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:30:36,103 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:30:36,110 INFO L420 sIntCurrentIteration]: We unified 99 AI predicates to 99 [2019-09-20 13:30:36,110 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:30:36,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:30:36,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2019-09-20 13:30:36,112 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:36,112 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:36,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:36,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:36,114 INFO L87 Difference]: Start difference. First operand 530 states and 627 transitions. Second operand 2 states. [2019-09-20 13:30:36,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:36,114 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:30:36,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:36,115 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 100 [2019-09-20 13:30:36,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:36,115 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:30:36,115 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:36,116 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 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 13:30:36,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:36,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:36,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:36,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:36,116 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2019-09-20 13:30:36,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:36,117 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:36,117 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:36,117 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:36,117 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:36,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:36 BoogieIcfgContainer [2019-09-20 13:30:36,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:36,126 INFO L168 Benchmark]: Toolchain (without parser) took 5835.75 ms. Allocated memory was 133.2 MB in the beginning and 332.9 MB in the end (delta: 199.8 MB). Free memory was 87.1 MB in the beginning and 294.2 MB in the end (delta: -207.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:30:36,127 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 133.2 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:36,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.07 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 86.9 MB in the beginning and 164.8 MB in the end (delta: -77.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:36,131 INFO L168 Benchmark]: Boogie Preprocessor took 98.48 ms. Allocated memory is still 199.8 MB. Free memory was 164.8 MB in the beginning and 160.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:36,132 INFO L168 Benchmark]: RCFGBuilder took 1255.03 ms. Allocated memory was 199.8 MB in the beginning and 223.9 MB in the end (delta: 24.1 MB). Free memory was 160.5 MB in the beginning and 192.0 MB in the end (delta: -31.5 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:36,138 INFO L168 Benchmark]: TraceAbstraction took 3775.04 ms. Allocated memory was 223.9 MB in the beginning and 332.9 MB in the end (delta: 109.1 MB). Free memory was 192.0 MB in the beginning and 294.2 MB in the end (delta: -102.2 MB). Peak memory consumption was 6.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:36,145 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 133.2 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 703.07 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 86.9 MB in the beginning and 164.8 MB in the end (delta: -77.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.48 ms. Allocated memory is still 199.8 MB. Free memory was 164.8 MB in the beginning and 160.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1255.03 ms. Allocated memory was 199.8 MB in the beginning and 223.9 MB in the end (delta: 24.1 MB). Free memory was 160.5 MB in the beginning and 192.0 MB in the end (delta: -31.5 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3775.04 ms. Allocated memory was 223.9 MB in the beginning and 332.9 MB in the end (delta: 109.1 MB). Free memory was 192.0 MB in the beginning and 294.2 MB in the end (delta: -102.2 MB). Peak memory consumption was 6.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 580]: 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 39 procedures, 235 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1288 SDtfs, 567 SDslu, 3195 SDs, 0 SdLazy, 637 SolverSat, 156 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=530occurred in iteration=8, 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, 1.1313131313131313 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 56 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 680 NumberOfCodeBlocks, 680 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 671 ConstructedInterpolants, 0 QuantifiedInterpolants, 84908 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 1/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...