/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 16:58:49,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 16:58:49,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 16:58:49,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 16:58:49,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 16:58:49,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 16:58:49,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 16:58:49,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 16:58:49,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 16:58:49,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 16:58:49,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 16:58:49,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 16:58:49,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 16:58:49,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 16:58:49,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 16:58:49,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 16:58:49,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 16:58:49,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 16:58:49,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 16:58:49,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 16:58:49,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 16:58:49,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 16:58:49,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 16:58:49,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 16:58:49,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 16:58:49,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 16:58:49,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 16:58:49,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 16:58:49,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 16:58:49,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 16:58:49,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 16:58:49,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 16:58:49,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 16:58:49,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 16:58:49,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 16:58:49,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 16:58:49,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 16:58:49,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 16:58:49,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 16:58:49,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 16:58:49,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 16:58:50,000 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-19 16:58:50,050 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 16:58:50,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 16:58:50,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 16:58:50,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 16:58:50,055 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 16:58:50,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 16:58:50,055 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 16:58:50,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 16:58:50,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 16:58:50,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 16:58:50,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 16:58:50,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 16:58:50,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 16:58:50,058 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 16:58:50,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 16:58:50,058 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 16:58:50,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 16:58:50,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 16:58:50,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 16:58:50,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 16:58:50,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 16:58:50,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 16:58:50,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 16:58:50,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 16:58:50,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 16:58:50,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 16:58:50,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 16:58:50,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 16:58:50,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 16:58:50,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 16:58:50,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 16:58:50,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 16:58:50,488 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 16:58:50,488 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 16:58:50,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2021-02-19 16:58:50,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec5f8e65d/c9b16d0bc1fa47fb9687108802ae3299/FLAG8720b60a1 [2021-02-19 16:58:51,183 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 16:58:51,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2021-02-19 16:58:51,200 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec5f8e65d/c9b16d0bc1fa47fb9687108802ae3299/FLAG8720b60a1 [2021-02-19 16:58:51,465 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec5f8e65d/c9b16d0bc1fa47fb9687108802ae3299 [2021-02-19 16:58:51,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 16:58:51,483 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 16:58:51,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 16:58:51,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 16:58:51,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 16:58:51,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 04:58:51" (1/1) ... [2021-02-19 16:58:51,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f527b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:58:51, skipping insertion in model container [2021-02-19 16:58:51,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 04:58:51" (1/1) ... [2021-02-19 16:58:51,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 16:58:51,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 16:58:51,885 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c[7599,7612] [2021-02-19 16:58:51,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 16:58:51,957 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 16:58:52,027 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c[7599,7612] [2021-02-19 16:58:52,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 16:58:52,149 INFO L208 MainTranslator]: Completed translation [2021-02-19 16:58:52,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:58:52 WrapperNode [2021-02-19 16:58:52,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 16:58:52,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 16:58:52,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 16:58:52,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 16:58:52,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:58:52" (1/1) ... [2021-02-19 16:58:52,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:58:52" (1/1) ... [2021-02-19 16:58:52,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:58:52" (1/1) ... [2021-02-19 16:58:52,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:58:52" (1/1) ... [2021-02-19 16:58:52,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:58:52" (1/1) ... [2021-02-19 16:58:52,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:58:52" (1/1) ... [2021-02-19 16:58:52,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:58:52" (1/1) ... [2021-02-19 16:58:52,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 16:58:52,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 16:58:52,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 16:58:52,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 16:58:52,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:58:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 16:58:52,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 16:58:52,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 16:58:52,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-19 16:58:52,357 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 16:58:52,358 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-19 16:58:52,358 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-19 16:58:52,358 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-19 16:58:52,374 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-19 16:58:52,376 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-19 16:58:52,388 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-19 16:58:52,388 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-19 16:58:52,389 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-19 16:58:52,390 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2021-02-19 16:58:52,390 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-19 16:58:52,392 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-19 16:58:52,392 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-19 16:58:52,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-19 16:58:52,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-19 16:58:52,395 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-19 16:58:52,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-19 16:58:52,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-19 16:58:52,395 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-19 16:58:52,396 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-19 16:58:52,400 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-19 16:58:52,401 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-19 16:58:52,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-19 16:58:52,401 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-19 16:58:52,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-19 16:58:52,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-19 16:58:52,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-19 16:58:52,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-19 16:58:52,404 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-19 16:58:52,404 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-19 16:58:52,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-19 16:58:52,405 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-19 16:58:52,405 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 16:58:52,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2021-02-19 16:58:52,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-19 16:58:52,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-19 16:58:52,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-19 16:58:52,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-19 16:58:52,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-19 16:58:52,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-19 16:58:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 16:58:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 16:58:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 16:58:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 16:58:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 16:58:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-19 16:58:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-19 16:58:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-19 16:58:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-19 16:58:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-19 16:58:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-19 16:58:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-19 16:58:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-19 16:58:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-19 16:58:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-19 16:58:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-19 16:58:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-19 16:58:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-19 16:58:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-19 16:58:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-19 16:58:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-19 16:58:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-19 16:58:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-19 16:58:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-19 16:58:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-19 16:58:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2021-02-19 16:58:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-19 16:58:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-19 16:58:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-19 16:58:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-19 16:58:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-19 16:58:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2021-02-19 16:58:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-19 16:58:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-19 16:58:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-19 16:58:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-19 16:58:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-19 16:58:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-19 16:58:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 16:58:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-19 16:58:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-19 16:58:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-19 16:58:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-19 16:58:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-19 16:58:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 16:58:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-19 16:58:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-19 16:58:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 16:58:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-19 16:58:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-19 16:58:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 16:58:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-19 16:58:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-19 16:58:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-19 16:58:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 16:58:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 16:58:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 16:58:53,660 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 16:58:53,661 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-19 16:58:53,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 04:58:53 BoogieIcfgContainer [2021-02-19 16:58:53,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 16:58:53,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 16:58:53,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 16:58:53,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 16:58:53,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 04:58:51" (1/3) ... [2021-02-19 16:58:53,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4556cef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 04:58:53, skipping insertion in model container [2021-02-19 16:58:53,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:58:52" (2/3) ... [2021-02-19 16:58:53,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4556cef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 04:58:53, skipping insertion in model container [2021-02-19 16:58:53,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 04:58:53" (3/3) ... [2021-02-19 16:58:53,681 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2021-02-19 16:58:53,689 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 16:58:53,694 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 16:58:53,717 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 16:58:53,761 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 16:58:53,761 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 16:58:53,761 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 16:58:53,762 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 16:58:53,762 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 16:58:53,762 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 16:58:53,762 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 16:58:53,763 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 16:58:53,788 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2021-02-19 16:58:53,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-19 16:58:53,803 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:58:53,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 16:58:53,804 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:58:53,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:58:53,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1892778339, now seen corresponding path program 1 times [2021-02-19 16:58:53,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:58:53,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658106551] [2021-02-19 16:58:53,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:58:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:54,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:54,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:54,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:54,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:54,476 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:58:54,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:58:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:54,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:54,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:54,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:58:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:54,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:54,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:54,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:58:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:54,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:54,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:54,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:58:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:54,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:54,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:54,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:58:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:54,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:54,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:54,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 16:58:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:54,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:54,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:54,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-19 16:58:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:54,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:54,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:54,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 16:58:54,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658106551] [2021-02-19 16:58:54,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:58:54,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 16:58:54,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549866554] [2021-02-19 16:58:54,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 16:58:54,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:58:54,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 16:58:54,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 16:58:54,592 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 3 states. [2021-02-19 16:58:56,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:58:56,160 INFO L93 Difference]: Finished difference Result 343 states and 450 transitions. [2021-02-19 16:58:56,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 16:58:56,162 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2021-02-19 16:58:56,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:58:56,176 INFO L225 Difference]: With dead ends: 343 [2021-02-19 16:58:56,176 INFO L226 Difference]: Without dead ends: 185 [2021-02-19 16:58:56,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 16:58:56,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-02-19 16:58:56,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 149. [2021-02-19 16:58:56,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2021-02-19 16:58:56,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 178 transitions. [2021-02-19 16:58:56,282 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 178 transitions. Word has length 46 [2021-02-19 16:58:56,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:58:56,282 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 178 transitions. [2021-02-19 16:58:56,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-19 16:58:56,283 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 178 transitions. [2021-02-19 16:58:56,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-02-19 16:58:56,286 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:58:56,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 16:58:56,287 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 16:58:56,287 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:58:56,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:58:56,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1092798320, now seen corresponding path program 1 times [2021-02-19 16:58:56,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:58:56,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100004013] [2021-02-19 16:58:56,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:58:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:56,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:56,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:56,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:56,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:56,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:56,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:56,705 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:58:56,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:58:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:56,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:56,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:56,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:58:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:56,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:56,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:56,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:58:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:56,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:56,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:56,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:58:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:56,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:56,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:56,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:58:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:56,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:56,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:56,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 16:58:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:56,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:56,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:56,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 16:58:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:56,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:56,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:56,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 16:58:56,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100004013] [2021-02-19 16:58:56,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:58:56,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 16:58:56,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629271405] [2021-02-19 16:58:56,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 16:58:56,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:58:56,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 16:58:56,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 16:58:56,768 INFO L87 Difference]: Start difference. First operand 149 states and 178 transitions. Second operand 4 states. [2021-02-19 16:58:57,305 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:58:58,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:58:58,438 INFO L93 Difference]: Finished difference Result 270 states and 333 transitions. [2021-02-19 16:58:58,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 16:58:58,439 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2021-02-19 16:58:58,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:58:58,450 INFO L225 Difference]: With dead ends: 270 [2021-02-19 16:58:58,450 INFO L226 Difference]: Without dead ends: 169 [2021-02-19 16:58:58,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 16:58:58,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-02-19 16:58:58,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 140. [2021-02-19 16:58:58,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2021-02-19 16:58:58,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2021-02-19 16:58:58,543 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 47 [2021-02-19 16:58:58,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:58:58,544 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2021-02-19 16:58:58,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 16:58:58,544 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2021-02-19 16:58:58,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-19 16:58:58,546 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:58:58,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 16:58:58,547 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 16:58:58,547 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:58:58,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:58:58,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1941240547, now seen corresponding path program 1 times [2021-02-19 16:58:58,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:58:58,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768496055] [2021-02-19 16:58:58,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:58:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:58,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:58,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:58,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:58,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:58,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:58,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:58,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:58,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:58,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:58,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 16:58:58,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:58,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 16:58:58,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:58,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 16:58:58,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:58,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:58,985 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:58:58,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:58:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:59,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:59,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 16:58:59,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:58:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:59,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:59,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:59,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:58:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:59,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:59,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:59,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:58:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:59,061 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-19 16:58:59,062 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-19 16:58:59,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:58:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:59,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:59,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:59,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 16:58:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:59,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:59,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:59,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 16:58:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:59,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:59,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:59,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 16:58:59,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768496055] [2021-02-19 16:58:59,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:58:59,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 16:58:59,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390617112] [2021-02-19 16:58:59,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 16:58:59,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:58:59,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 16:58:59,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 16:58:59,099 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand 8 states. [2021-02-19 16:58:59,598 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 16:58:59,986 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:59:00,386 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:59:00,742 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:59:01,594 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:59:03,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:59:03,964 INFO L93 Difference]: Finished difference Result 476 states and 596 transitions. [2021-02-19 16:59:03,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 16:59:03,965 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2021-02-19 16:59:03,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:59:03,970 INFO L225 Difference]: With dead ends: 476 [2021-02-19 16:59:03,970 INFO L226 Difference]: Without dead ends: 360 [2021-02-19 16:59:03,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-19 16:59:03,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-02-19 16:59:04,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 298. [2021-02-19 16:59:04,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-02-19 16:59:04,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 364 transitions. [2021-02-19 16:59:04,091 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 364 transitions. Word has length 51 [2021-02-19 16:59:04,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:59:04,091 INFO L480 AbstractCegarLoop]: Abstraction has 298 states and 364 transitions. [2021-02-19 16:59:04,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 16:59:04,092 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 364 transitions. [2021-02-19 16:59:04,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-19 16:59:04,095 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:59:04,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 16:59:04,096 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 16:59:04,096 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:59:04,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:59:04,097 INFO L82 PathProgramCache]: Analyzing trace with hash 408429461, now seen corresponding path program 1 times [2021-02-19 16:59:04,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:59:04,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747210652] [2021-02-19 16:59:04,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:59:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:04,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:04,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:04,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:04,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:04,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:04,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:04,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:04,504 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:59:04,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:59:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:04,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:04,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:59:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:04,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:04,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:59:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:04,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:04,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:59:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:04,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:04,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:59:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:04,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:04,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 16:59:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:04,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:04,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 16:59:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:04,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:04,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 16:59:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:04,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:04,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:04,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 16:59:04,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747210652] [2021-02-19 16:59:04,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:59:04,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 16:59:04,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934531220] [2021-02-19 16:59:04,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 16:59:04,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:59:04,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 16:59:04,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 16:59:04,611 INFO L87 Difference]: Start difference. First operand 298 states and 364 transitions. Second operand 8 states. [2021-02-19 16:59:05,114 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 16:59:06,125 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:59:06,713 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 16:59:07,150 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:59:07,529 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:59:08,324 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:59:09,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:59:09,757 INFO L93 Difference]: Finished difference Result 960 states and 1249 transitions. [2021-02-19 16:59:09,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 16:59:09,758 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2021-02-19 16:59:09,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:59:09,764 INFO L225 Difference]: With dead ends: 960 [2021-02-19 16:59:09,764 INFO L226 Difference]: Without dead ends: 686 [2021-02-19 16:59:09,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2021-02-19 16:59:09,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-02-19 16:59:09,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 551. [2021-02-19 16:59:09,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2021-02-19 16:59:09,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 678 transitions. [2021-02-19 16:59:09,945 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 678 transitions. Word has length 57 [2021-02-19 16:59:09,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:59:09,946 INFO L480 AbstractCegarLoop]: Abstraction has 551 states and 678 transitions. [2021-02-19 16:59:09,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 16:59:09,946 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 678 transitions. [2021-02-19 16:59:09,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-19 16:59:09,950 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:59:09,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 16:59:09,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 16:59:09,951 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:59:09,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:59:09,952 INFO L82 PathProgramCache]: Analyzing trace with hash -235213351, now seen corresponding path program 1 times [2021-02-19 16:59:09,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:59:09,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375331140] [2021-02-19 16:59:09,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:59:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:10,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:10,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:10,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:10,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:10,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:10,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:10,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:10,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:10,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:10,324 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:59:10,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:59:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:10,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:10,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:59:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:10,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:10,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:59:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:10,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:10,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:59:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:10,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:10,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:59:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:10,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:10,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-19 16:59:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:10,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:10,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 16:59:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:10,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:10,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-19 16:59:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:10,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:10,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-19 16:59:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:10,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:10,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:10,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 16:59:10,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375331140] [2021-02-19 16:59:10,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:59:10,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-19 16:59:10,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106816125] [2021-02-19 16:59:10,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 16:59:10,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:59:10,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 16:59:10,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-02-19 16:59:10,432 INFO L87 Difference]: Start difference. First operand 551 states and 678 transitions. Second operand 9 states. [2021-02-19 16:59:10,989 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 16:59:12,105 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:59:12,522 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:59:12,891 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:59:13,690 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 16:59:14,130 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:59:15,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:59:15,529 INFO L93 Difference]: Finished difference Result 1523 states and 2048 transitions. [2021-02-19 16:59:15,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 16:59:15,530 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2021-02-19 16:59:15,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:59:15,539 INFO L225 Difference]: With dead ends: 1523 [2021-02-19 16:59:15,539 INFO L226 Difference]: Without dead ends: 996 [2021-02-19 16:59:15,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2021-02-19 16:59:15,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2021-02-19 16:59:15,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 815. [2021-02-19 16:59:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2021-02-19 16:59:15,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1007 transitions. [2021-02-19 16:59:15,754 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1007 transitions. Word has length 61 [2021-02-19 16:59:15,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:59:15,754 INFO L480 AbstractCegarLoop]: Abstraction has 815 states and 1007 transitions. [2021-02-19 16:59:15,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-19 16:59:15,755 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1007 transitions. [2021-02-19 16:59:15,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-02-19 16:59:15,759 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:59:15,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 16:59:15,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 16:59:15,760 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:59:15,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:59:15,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1497442616, now seen corresponding path program 1 times [2021-02-19 16:59:15,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:59:15,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109758528] [2021-02-19 16:59:15,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:59:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:15,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:15,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:15,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:15,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,171 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:59:16,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:59:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:16,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:59:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:16,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:59:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:16,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:59:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:16,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:59:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:16,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-19 16:59:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:16,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 16:59:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:16,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 16:59:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:16,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 16:59:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:16,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:16,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:16,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 16:59:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:16,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 16:59:16,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 16:59:16,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 16:59:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:16,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-19 16:59:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:16,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-19 16:59:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:16,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-19 16:59:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:16,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:16,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:16,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 16:59:16,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109758528] [2021-02-19 16:59:16,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:59:16,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-19 16:59:16,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464707959] [2021-02-19 16:59:16,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 16:59:16,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:59:16,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 16:59:16,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-02-19 16:59:16,376 INFO L87 Difference]: Start difference. First operand 815 states and 1007 transitions. Second operand 9 states. [2021-02-19 16:59:17,608 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:59:18,006 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-19 16:59:18,380 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:59:18,739 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:59:20,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:59:20,139 INFO L93 Difference]: Finished difference Result 1863 states and 2473 transitions. [2021-02-19 16:59:20,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 16:59:20,140 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2021-02-19 16:59:20,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:59:20,148 INFO L225 Difference]: With dead ends: 1863 [2021-02-19 16:59:20,148 INFO L226 Difference]: Without dead ends: 1072 [2021-02-19 16:59:20,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-02-19 16:59:20,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-02-19 16:59:20,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 841. [2021-02-19 16:59:20,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2021-02-19 16:59:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1035 transitions. [2021-02-19 16:59:20,378 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1035 transitions. Word has length 88 [2021-02-19 16:59:20,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:59:20,379 INFO L480 AbstractCegarLoop]: Abstraction has 841 states and 1035 transitions. [2021-02-19 16:59:20,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-19 16:59:20,379 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1035 transitions. [2021-02-19 16:59:20,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-02-19 16:59:20,382 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:59:20,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 16:59:20,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-19 16:59:20,383 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:59:20,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:59:20,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1222683002, now seen corresponding path program 1 times [2021-02-19 16:59:20,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:59:20,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319073329] [2021-02-19 16:59:20,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:59:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:20,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:20,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,750 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:59:20,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:59:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:59:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:59:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:59:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 16:59:20,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:59:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-19 16:59:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 16:59:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 16:59:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 16:59:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 16:59:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:20,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:20,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 16:59:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:20,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-19 16:59:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-19 16:59:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-19 16:59:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:20,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:20,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:20,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 16:59:20,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319073329] [2021-02-19 16:59:20,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:59:20,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-19 16:59:20,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251840202] [2021-02-19 16:59:20,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-19 16:59:20,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:59:20,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-19 16:59:20,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-02-19 16:59:20,916 INFO L87 Difference]: Start difference. First operand 841 states and 1035 transitions. Second operand 11 states. [2021-02-19 16:59:21,980 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:59:22,394 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:59:22,752 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:59:23,599 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:59:23,942 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:59:24,323 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:59:25,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:59:25,911 INFO L93 Difference]: Finished difference Result 1917 states and 2592 transitions. [2021-02-19 16:59:25,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 16:59:25,911 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2021-02-19 16:59:25,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:59:25,919 INFO L225 Difference]: With dead ends: 1917 [2021-02-19 16:59:25,920 INFO L226 Difference]: Without dead ends: 1100 [2021-02-19 16:59:25,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-02-19 16:59:25,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2021-02-19 16:59:26,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 857. [2021-02-19 16:59:26,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2021-02-19 16:59:26,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1051 transitions. [2021-02-19 16:59:26,134 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1051 transitions. Word has length 88 [2021-02-19 16:59:26,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:59:26,135 INFO L480 AbstractCegarLoop]: Abstraction has 857 states and 1051 transitions. [2021-02-19 16:59:26,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-19 16:59:26,135 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1051 transitions. [2021-02-19 16:59:26,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-02-19 16:59:26,137 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:59:26,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 16:59:26,137 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-19 16:59:26,137 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:59:26,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:59:26,138 INFO L82 PathProgramCache]: Analyzing trace with hash 727617253, now seen corresponding path program 1 times [2021-02-19 16:59:26,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:59:26,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459800596] [2021-02-19 16:59:26,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:59:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:26,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:26,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:26,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:26,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 16:59:26,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:26,527 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:59:26,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:59:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 16:59:26,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:59:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:26,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:59:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:26,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:59:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:26,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:59:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:26,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-19 16:59:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:26,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 16:59:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:26,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:59:26,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 16:59:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:26,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 16:59:26,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 16:59:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:26,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 16:59:26,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 16:59:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:26,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 16:59:26,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 16:59:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:26,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 16:59:26,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-19 16:59:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:26,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-19 16:59:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:26,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-19 16:59:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:59:26,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:59:26,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:59:26,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 16:59:26,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459800596] [2021-02-19 16:59:26,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:59:26,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-19 16:59:26,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479692007] [2021-02-19 16:59:26,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-19 16:59:26,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:59:26,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-19 16:59:26,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-19 16:59:26,744 INFO L87 Difference]: Start difference. First operand 857 states and 1051 transitions. Second operand 7 states. [2021-02-19 16:59:27,197 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 16:59:27,832 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 16:59:30,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:59:30,929 INFO L93 Difference]: Finished difference Result 2846 states and 3865 transitions. [2021-02-19 16:59:30,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 16:59:30,930 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2021-02-19 16:59:30,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:59:30,942 INFO L225 Difference]: With dead ends: 2846 [2021-02-19 16:59:30,943 INFO L226 Difference]: Without dead ends: 2013 [2021-02-19 16:59:30,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-02-19 16:59:30,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2021-02-19 16:59:31,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1711. [2021-02-19 16:59:31,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1711 states. [2021-02-19 16:59:31,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2117 transitions. [2021-02-19 16:59:31,337 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2117 transitions. Word has length 88 [2021-02-19 16:59:31,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:59:31,338 INFO L480 AbstractCegarLoop]: Abstraction has 1711 states and 2117 transitions. [2021-02-19 16:59:31,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-19 16:59:31,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2117 transitions. [2021-02-19 16:59:31,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-02-19 16:59:31,341 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:59:31,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 16:59:31,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-19 16:59:31,342 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:59:31,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:59:31,342 INFO L82 PathProgramCache]: Analyzing trace with hash -428984673, now seen corresponding path program 1 times [2021-02-19 16:59:31,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:59:31,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145265779] [2021-02-19 16:59:31,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:59:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 16:59:31,423 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 16:59:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 16:59:31,484 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 16:59:31,625 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 16:59:31,625 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 16:59:31,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-19 16:59:31,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 04:59:31 BoogieIcfgContainer [2021-02-19 16:59:31,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 16:59:31,844 INFO L168 Benchmark]: Toolchain (without parser) took 40372.88 ms. Allocated memory was 165.7 MB in the beginning and 543.2 MB in the end (delta: 377.5 MB). Free memory was 139.7 MB in the beginning and 503.5 MB in the end (delta: -363.8 MB). Peak memory consumption was 323.4 MB. Max. memory is 8.0 GB. [2021-02-19 16:59:31,845 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 165.7 MB. Free memory is still 136.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 16:59:31,845 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.45 ms. Allocated memory is still 165.7 MB. Free memory was 138.5 MB in the beginning and 117.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-19 16:59:31,846 INFO L168 Benchmark]: Boogie Preprocessor took 107.40 ms. Allocated memory is still 165.7 MB. Free memory was 117.0 MB in the beginning and 113.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-19 16:59:31,848 INFO L168 Benchmark]: RCFGBuilder took 1406.30 ms. Allocated memory is still 165.7 MB. Free memory was 113.1 MB in the beginning and 62.1 MB in the end (delta: 50.9 MB). Peak memory consumption was 50.8 MB. Max. memory is 8.0 GB. [2021-02-19 16:59:31,849 INFO L168 Benchmark]: TraceAbstraction took 38172.69 ms. Allocated memory was 165.7 MB in the beginning and 543.2 MB in the end (delta: 377.5 MB). Free memory was 61.6 MB in the beginning and 503.5 MB in the end (delta: -441.9 MB). Peak memory consumption was 245.4 MB. Max. memory is 8.0 GB. [2021-02-19 16:59:31,855 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 165.7 MB. Free memory is still 136.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 663.45 ms. Allocated memory is still 165.7 MB. Free memory was 138.5 MB in the beginning and 117.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 107.40 ms. Allocated memory is still 165.7 MB. Free memory was 117.0 MB in the beginning and 113.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1406.30 ms. Allocated memory is still 165.7 MB. Free memory was 113.1 MB in the beginning and 62.1 MB in the end (delta: 50.9 MB). Peak memory consumption was 50.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 38172.69 ms. Allocated memory was 165.7 MB in the beginning and 543.2 MB in the end (delta: 377.5 MB). Free memory was 61.6 MB in the beginning and 503.5 MB in the end (delta: -441.9 MB). Peak memory consumption was 245.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 508]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L161] int pumpRunning = 0; [L162] int systemActive = 1; [L401] int waterLevel = 1; [L402] int methaneLevelCritical = 0; [L513] int cleanupTimeShifts = 4; [L804] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=149, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L586] int retValue_acc ; [L587] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L591] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L592] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L593] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L593] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L593] tmp = valid_product() [L595] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L597] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L598] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L580] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L86] int splverifierCounter ; [L87] int tmp ; [L88] int tmp___0 ; [L89] int tmp___1 ; [L90] int tmp___2 ; [L93] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L95] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L97] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L103] tmp = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L107] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L419] COND TRUE waterLevel < 2 [L420] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L107] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L113] tmp___0 = __VERIFIER_nondet_int() [L115] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, waterLevel=2] [L117] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L431] COND FALSE !(\read(methaneLevelCritical)) [L434] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L117] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, waterLevel=2] [L123] tmp___2 = __VERIFIER_nondet_int() [L125] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, tmp___2=1, waterLevel=2] [L140] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L169] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L176] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L178] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L250] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L253] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L268] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L224] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L227] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L242] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L198] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L201] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L203] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L347] int retValue_acc ; [L348] int tmp ; [L349] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L353] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L481] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L484] COND FALSE !(waterLevel < 2) [L488] retValue_acc = 0 [L489] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L353] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L353] tmp = isHighWaterSensorDry() [L355] COND FALSE !(\read(tmp)) [L358] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L360] retValue_acc = tmp___0 [L361] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L203] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L203] tmp = isHighWaterLevel() [L205] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L207] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L278] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L207] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L242] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L268] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L178] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L184] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L610] int tmp ; [L611] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L615] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L440] int retValue_acc ; [L443] retValue_acc = methaneLevelCritical [L444] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L615] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L615] tmp = isMethaneLevelCritical() [L617] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L619] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L302] int retValue_acc ; [L305] retValue_acc = pumpRunning [L306] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L619] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L619] tmp___0 = isPumpRunning() [L621] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L623] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L508] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 37.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 31.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1088 SDtfs, 1945 SDslu, 1130 SDs, 0 SdLazy, 5796 SolverSat, 1211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 186 SyntacticMatches, 5 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 12.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1711occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 1219 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 618 NumberOfCodeBlocks, 618 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 518 ConstructedInterpolants, 0 QuantifiedInterpolants, 166968 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...