/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 18:55:24,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 18:55:24,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 18:55:24,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 18:55:24,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 18:55:24,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 18:55:24,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 18:55:25,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 18:55:25,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 18:55:25,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 18:55:25,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 18:55:25,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 18:55:25,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 18:55:25,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 18:55:25,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 18:55:25,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 18:55:25,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 18:55:25,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 18:55:25,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 18:55:25,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 18:55:25,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 18:55:25,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 18:55:25,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 18:55:25,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 18:55:25,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 18:55:25,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 18:55:25,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 18:55:25,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 18:55:25,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 18:55:25,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 18:55:25,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 18:55:25,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 18:55:25,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 18:55:25,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 18:55:25,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 18:55:25,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 18:55:25,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 18:55:25,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 18:55:25,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 18:55:25,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 18:55:25,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 18:55:25,058 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 18:55:25,073 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 18:55:25,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 18:55:25,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 18:55:25,075 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 18:55:25,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 18:55:25,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 18:55:25,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 18:55:25,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 18:55:25,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 18:55:25,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 18:55:25,076 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 18:55:25,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 18:55:25,077 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 18:55:25,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 18:55:25,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 18:55:25,078 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 18:55:25,078 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 18:55:25,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 18:55:25,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 18:55:25,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 18:55:25,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 18:55:25,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 18:55:25,079 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 18:55:25,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 18:55:25,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 18:55:25,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 18:55:25,485 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 18:55:25,486 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 18:55:25,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2021-02-21 18:55:25,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5fa6e3f6/76f7edf1ea13456aaa7bd99b4504f411/FLAG0804c4a63 [2021-02-21 18:55:26,374 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 18:55:26,374 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2021-02-21 18:55:26,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5fa6e3f6/76f7edf1ea13456aaa7bd99b4504f411/FLAG0804c4a63 [2021-02-21 18:55:26,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5fa6e3f6/76f7edf1ea13456aaa7bd99b4504f411 [2021-02-21 18:55:26,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 18:55:26,733 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 18:55:26,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 18:55:26,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 18:55:26,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 18:55:26,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 06:55:26" (1/1) ... [2021-02-21 18:55:26,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@529f9725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:26, skipping insertion in model container [2021-02-21 18:55:26,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 06:55:26" (1/1) ... [2021-02-21 18:55:26,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 18:55:26,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 18:55:26,987 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_spec3_product05.cil.c[1817,1830] [2021-02-21 18:55:27,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 18:55:27,251 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 18:55:27,290 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_spec3_product05.cil.c[1817,1830] [2021-02-21 18:55:27,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 18:55:27,451 INFO L208 MainTranslator]: Completed translation [2021-02-21 18:55:27,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:27 WrapperNode [2021-02-21 18:55:27,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 18:55:27,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 18:55:27,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 18:55:27,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 18:55:27,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:27" (1/1) ... [2021-02-21 18:55:27,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:27" (1/1) ... [2021-02-21 18:55:27,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:27" (1/1) ... [2021-02-21 18:55:27,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:27" (1/1) ... [2021-02-21 18:55:27,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:27" (1/1) ... [2021-02-21 18:55:27,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:27" (1/1) ... [2021-02-21 18:55:27,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:27" (1/1) ... [2021-02-21 18:55:27,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 18:55:27,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 18:55:27,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 18:55:27,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 18:55:27,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:27" (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 [2021-02-21 18:55:27,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 18:55:27,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 18:55:27,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-21 18:55:27,669 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 18:55:27,669 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-21 18:55:27,669 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-21 18:55:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-21 18:55:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-21 18:55:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-21 18:55:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-21 18:55:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-21 18:55:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-21 18:55:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-21 18:55:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-21 18:55:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-21 18:55:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-21 18:55:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-21 18:55:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-21 18:55:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-21 18:55:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-21 18:55:27,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-21 18:55:27,677 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-21 18:55:27,677 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 18:55:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-21 18:55:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-21 18:55:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-21 18:55:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-21 18:55:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-21 18:55:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-21 18:55:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-21 18:55:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-21 18:55:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-21 18:55:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-21 18:55:27,680 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-21 18:55:27,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-21 18:55:27,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-21 18:55:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 18:55:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 18:55:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 18:55:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 18:55:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 18:55:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-21 18:55:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-21 18:55:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-21 18:55:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-21 18:55:27,682 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-21 18:55:27,682 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-21 18:55:27,682 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-21 18:55:27,682 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-21 18:55:27,682 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-21 18:55:27,682 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-21 18:55:27,682 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-21 18:55:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-21 18:55:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-21 18:55:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-21 18:55:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-21 18:55:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-21 18:55:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-21 18:55:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-21 18:55:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-21 18:55:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-21 18:55:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-21 18:55:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-21 18:55:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-21 18:55:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-21 18:55:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-21 18:55:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 18:55:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 18:55:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 18:55:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-21 18:55:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 18:55:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 18:55:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 18:55:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 18:55:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-21 18:55:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 18:55:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-21 18:55:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-21 18:55:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 18:55:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-21 18:55:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-21 18:55:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-21 18:55:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-21 18:55:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 18:55:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 18:55:27,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 18:55:29,045 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 18:55:29,046 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-21 18:55:29,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 06:55:29 BoogieIcfgContainer [2021-02-21 18:55:29,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 18:55:29,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 18:55:29,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 18:55:29,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 18:55:29,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 06:55:26" (1/3) ... [2021-02-21 18:55:29,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d61195d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 06:55:29, skipping insertion in model container [2021-02-21 18:55:29,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:27" (2/3) ... [2021-02-21 18:55:29,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d61195d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 06:55:29, skipping insertion in model container [2021-02-21 18:55:29,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 06:55:29" (3/3) ... [2021-02-21 18:55:29,065 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2021-02-21 18:55:29,072 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 18:55:29,078 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 18:55:29,099 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 18:55:29,137 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 18:55:29,137 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 18:55:29,137 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 18:55:29,137 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 18:55:29,138 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 18:55:29,138 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 18:55:29,138 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 18:55:29,138 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 18:55:29,174 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2021-02-21 18:55:29,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-21 18:55:29,210 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:29,211 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:55:29,211 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:29,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:29,218 INFO L82 PathProgramCache]: Analyzing trace with hash 255202477, now seen corresponding path program 1 times [2021-02-21 18:55:29,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:29,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240285038] [2021-02-21 18:55:29,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:29,302 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:29,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:29,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:29,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:29,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:30,039 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:55:30,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:55:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:30,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:30,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:30,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:55:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:30,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:30,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:30,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:55:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:30,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:30,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:30,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:55:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:30,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:30,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:30,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:55:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:30,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:30,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:30,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-21 18:55:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:30,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:30,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:30,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 18:55:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:30,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:30,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:30,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 18:55:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:30,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:30,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:30,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:55:30,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240285038] [2021-02-21 18:55:30,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:55:30,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 18:55:30,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675719903] [2021-02-21 18:55:30,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 18:55:30,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:55:30,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 18:55:30,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 18:55:30,340 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2021-02-21 18:55:31,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:55:31,843 INFO L93 Difference]: Finished difference Result 419 states and 501 transitions. [2021-02-21 18:55:31,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 18:55:31,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-21 18:55:31,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:55:31,876 INFO L225 Difference]: With dead ends: 419 [2021-02-21 18:55:31,876 INFO L226 Difference]: Without dead ends: 268 [2021-02-21 18:55:31,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 18:55:31,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-02-21 18:55:32,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 229. [2021-02-21 18:55:32,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2021-02-21 18:55:32,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 247 transitions. [2021-02-21 18:55:32,152 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 247 transitions. Word has length 158 [2021-02-21 18:55:32,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:55:32,156 INFO L480 AbstractCegarLoop]: Abstraction has 229 states and 247 transitions. [2021-02-21 18:55:32,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 18:55:32,156 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 247 transitions. [2021-02-21 18:55:32,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-21 18:55:32,169 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:32,170 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:55:32,170 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 18:55:32,170 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:32,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:32,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1300908467, now seen corresponding path program 1 times [2021-02-21 18:55:32,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:32,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107190770] [2021-02-21 18:55:32,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:32,180 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:32,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:32,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:32,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:32,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:32,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:32,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:32,683 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:55:32,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:55:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:32,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:32,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:32,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:55:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:32,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:32,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:32,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:55:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:32,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:32,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:32,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:55:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:32,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:32,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:32,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:55:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:32,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:32,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:32,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-21 18:55:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:32,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:32,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:32,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-21 18:55:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:32,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:32,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:32,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-21 18:55:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:32,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:32,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:32,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:55:32,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107190770] [2021-02-21 18:55:32,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:55:32,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 18:55:32,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416640376] [2021-02-21 18:55:32,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 18:55:32,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:55:32,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 18:55:32,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 18:55:32,816 INFO L87 Difference]: Start difference. First operand 229 states and 247 transitions. Second operand 4 states. [2021-02-21 18:55:33,568 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:55:34,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:55:34,353 INFO L93 Difference]: Finished difference Result 335 states and 375 transitions. [2021-02-21 18:55:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 18:55:34,354 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-21 18:55:34,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:55:34,358 INFO L225 Difference]: With dead ends: 335 [2021-02-21 18:55:34,358 INFO L226 Difference]: Without dead ends: 251 [2021-02-21 18:55:34,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-21 18:55:34,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-02-21 18:55:34,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 219. [2021-02-21 18:55:34,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2021-02-21 18:55:34,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 234 transitions. [2021-02-21 18:55:34,446 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 234 transitions. Word has length 159 [2021-02-21 18:55:34,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:55:34,449 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 234 transitions. [2021-02-21 18:55:34,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 18:55:34,449 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 234 transitions. [2021-02-21 18:55:34,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-21 18:55:34,451 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:34,452 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:55:34,452 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 18:55:34,452 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:34,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:34,453 INFO L82 PathProgramCache]: Analyzing trace with hash 506809905, now seen corresponding path program 1 times [2021-02-21 18:55:34,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:34,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075177641] [2021-02-21 18:55:34,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:34,463 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:34,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:34,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:34,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:34,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:34,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:34,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:34,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:34,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:55:34,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:34,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:35,023 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:55:35,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:55:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:35,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:35,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:35,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:35,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 18:55:35,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:55:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:35,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:35,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:35,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:55:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:35,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:35,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:35,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:55:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:35,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:35,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:35,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:35,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:55:35,158 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-21 18:55:35,159 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-21 18:55:35,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:55:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:35,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:35,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:35,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 18:55:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:35,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:35,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:35,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 18:55:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:35,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:35,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:35,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-02-21 18:55:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:35,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:35,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:55:35,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075177641] [2021-02-21 18:55:35,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:55:35,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 18:55:35,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111641800] [2021-02-21 18:55:35,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 18:55:35,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:55:35,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 18:55:35,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-21 18:55:35,266 INFO L87 Difference]: Start difference. First operand 219 states and 234 transitions. Second operand 9 states. [2021-02-21 18:55:35,879 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 18:55:36,294 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:55:36,642 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:55:37,004 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:37,401 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:55:37,736 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:39,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:55:39,053 INFO L93 Difference]: Finished difference Result 355 states and 400 transitions. [2021-02-21 18:55:39,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-21 18:55:39,054 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2021-02-21 18:55:39,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:55:39,057 INFO L225 Difference]: With dead ends: 355 [2021-02-21 18:55:39,057 INFO L226 Difference]: Without dead ends: 251 [2021-02-21 18:55:39,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-21 18:55:39,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-02-21 18:55:39,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 219. [2021-02-21 18:55:39,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2021-02-21 18:55:39,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 233 transitions. [2021-02-21 18:55:39,144 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 233 transitions. Word has length 168 [2021-02-21 18:55:39,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:55:39,144 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 233 transitions. [2021-02-21 18:55:39,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 18:55:39,145 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 233 transitions. [2021-02-21 18:55:39,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-02-21 18:55:39,147 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:39,147 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:55:39,147 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 18:55:39,147 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:39,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:39,148 INFO L82 PathProgramCache]: Analyzing trace with hash -910061808, now seen corresponding path program 1 times [2021-02-21 18:55:39,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:39,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658239344] [2021-02-21 18:55:39,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:39,152 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:39,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:39,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:39,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:39,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:39,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:39,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:39,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:39,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:39,549 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:55:39,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:55:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:39,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:39,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 18:55:39,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:55:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:39,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:39,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:55:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:39,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:39,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:55:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:39,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:39,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:55:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:39,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:39,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-21 18:55:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:39,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:39,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:55:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:39,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:39,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-21 18:55:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:39,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:39,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-21 18:55:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:39,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:39,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:39,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:39,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-02-21 18:55:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:39,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:39,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:39,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:55:39,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658239344] [2021-02-21 18:55:39,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:55:39,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 18:55:39,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933900968] [2021-02-21 18:55:39,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 18:55:39,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:55:39,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 18:55:39,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-21 18:55:39,729 INFO L87 Difference]: Start difference. First operand 219 states and 233 transitions. Second operand 9 states. [2021-02-21 18:55:40,280 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 18:55:42,132 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:42,517 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:55:42,887 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:43,253 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:55:43,600 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:44,120 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 18:55:44,519 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:44,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:55:44,784 INFO L93 Difference]: Finished difference Result 494 states and 585 transitions. [2021-02-21 18:55:44,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-21 18:55:44,785 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2021-02-21 18:55:44,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:55:44,789 INFO L225 Difference]: With dead ends: 494 [2021-02-21 18:55:44,789 INFO L226 Difference]: Without dead ends: 390 [2021-02-21 18:55:44,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-21 18:55:44,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-02-21 18:55:44,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 315. [2021-02-21 18:55:44,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2021-02-21 18:55:44,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 346 transitions. [2021-02-21 18:55:44,931 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 346 transitions. Word has length 176 [2021-02-21 18:55:44,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:55:44,932 INFO L480 AbstractCegarLoop]: Abstraction has 315 states and 346 transitions. [2021-02-21 18:55:44,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 18:55:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 346 transitions. [2021-02-21 18:55:44,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-02-21 18:55:44,935 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:44,936 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:55:44,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 18:55:44,936 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:44,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:44,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1745516094, now seen corresponding path program 1 times [2021-02-21 18:55:44,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:44,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942912240] [2021-02-21 18:55:44,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:44,940 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:44,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:44,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:45,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:45,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:45,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:45,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:45,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:45,312 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:55:45,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:55:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:45,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:45,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:45,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:55:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:45,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:45,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:55:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:45,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:45,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:55:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:45,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:45,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:55:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:45,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:45,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-21 18:55:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:45,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:45,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-21 18:55:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:45,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:45,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:55:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:45,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:45,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-21 18:55:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:45,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:45,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-21 18:55:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:45,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:45,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-02-21 18:55:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:45,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:45,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:45,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:55:45,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942912240] [2021-02-21 18:55:45,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:55:45,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 18:55:45,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280890088] [2021-02-21 18:55:45,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 18:55:45,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:55:45,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 18:55:45,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-21 18:55:45,462 INFO L87 Difference]: Start difference. First operand 315 states and 346 transitions. Second operand 6 states. [2021-02-21 18:55:46,066 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 18:55:46,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:55:46,762 INFO L93 Difference]: Finished difference Result 484 states and 550 transitions. [2021-02-21 18:55:46,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 18:55:46,762 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2021-02-21 18:55:46,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:55:46,764 INFO L225 Difference]: With dead ends: 484 [2021-02-21 18:55:46,765 INFO L226 Difference]: Without dead ends: 284 [2021-02-21 18:55:46,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-21 18:55:46,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-02-21 18:55:46,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 263. [2021-02-21 18:55:46,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2021-02-21 18:55:46,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 278 transitions. [2021-02-21 18:55:46,869 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 278 transitions. Word has length 181 [2021-02-21 18:55:46,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:55:46,870 INFO L480 AbstractCegarLoop]: Abstraction has 263 states and 278 transitions. [2021-02-21 18:55:46,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 18:55:46,870 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 278 transitions. [2021-02-21 18:55:46,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-02-21 18:55:46,872 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:46,872 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:55:46,873 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 18:55:46,873 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:46,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:46,873 INFO L82 PathProgramCache]: Analyzing trace with hash -997262042, now seen corresponding path program 1 times [2021-02-21 18:55:46,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:46,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854113974] [2021-02-21 18:55:46,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:46,877 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 18:55:46,951 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 18:55:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 18:55:47,022 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 18:55:47,209 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 18:55:47,209 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 18:55:47,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-21 18:55:47,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 06:55:47 BoogieIcfgContainer [2021-02-21 18:55:47,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 18:55:47,235 INFO L168 Benchmark]: Toolchain (without parser) took 20519.28 ms. Allocated memory was 151.0 MB in the beginning and 393.2 MB in the end (delta: 242.2 MB). Free memory was 126.5 MB in the beginning and 253.6 MB in the end (delta: -127.1 MB). Peak memory consumption was 116.1 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:47,235 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 125.0 MB in the end (delta: 82.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 18:55:47,236 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.35 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 105.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:47,236 INFO L168 Benchmark]: Boogie Preprocessor took 109.93 ms. Allocated memory is still 151.0 MB. Free memory was 105.3 MB in the beginning and 133.1 MB in the end (delta: -27.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:47,236 INFO L168 Benchmark]: RCFGBuilder took 1488.98 ms. Allocated memory is still 151.0 MB. Free memory was 133.1 MB in the beginning and 93.1 MB in the end (delta: 40.0 MB). Peak memory consumption was 65.4 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:47,237 INFO L168 Benchmark]: TraceAbstraction took 18178.83 ms. Allocated memory was 151.0 MB in the beginning and 393.2 MB in the end (delta: 242.2 MB). Free memory was 92.5 MB in the beginning and 253.6 MB in the end (delta: -161.1 MB). Peak memory consumption was 81.6 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:47,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 125.0 MB in the end (delta: 82.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 713.35 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 105.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 109.93 ms. Allocated memory is still 151.0 MB. Free memory was 105.3 MB in the beginning and 133.1 MB in the end (delta: -27.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1488.98 ms. Allocated memory is still 151.0 MB. Free memory was 133.1 MB in the beginning and 93.1 MB in the end (delta: 40.0 MB). Peak memory consumption was 65.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18178.83 ms. Allocated memory was 151.0 MB in the beginning and 393.2 MB in the end (delta: 242.2 MB). Free memory was 92.5 MB in the beginning and 253.6 MB in the end (delta: -161.1 MB). Peak memory consumption was 81.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 84]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L97] int pumpRunning = 0; [L98] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L564] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L762] int waterLevel = 1; [L763] int methaneLevelCritical = 0; [L372] int retValue_acc ; [L373] int tmp ; [L377] FCALL select_helpers() [L378] FCALL select_features() [L379] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L379] RET, EXPR valid_product() [L379] tmp = valid_product() [L381] COND TRUE \read(tmp) [L383] FCALL setup() [L384] CALL runTest() [L366] CALL test() [L235] int splverifierCounter ; [L236] int tmp ; [L237] int tmp___0 ; [L238] int tmp___1 ; [L239] int tmp___2 ; [L242] splverifierCounter = 0 [L244] COND TRUE 1 [L246] COND TRUE splverifierCounter < 4 [L252] tmp = __VERIFIER_nondet_int() [L254] COND TRUE \read(tmp) [L256] CALL waterRise() [L780] COND TRUE waterLevel < 2 [L781] waterLevel = waterLevel + 1 [L256] RET waterRise() [L262] tmp___0 = __VERIFIER_nondet_int() [L264] COND FALSE !(\read(tmp___0)) [L272] tmp___2 = __VERIFIER_nondet_int() [L274] COND TRUE \read(tmp___2) [L287] CALL timeShift() [L105] COND FALSE !(\read(pumpRunning)) [L112] COND TRUE \read(systemActive) [L114] CALL processEnvironment() [L134] int tmp ; [L137] COND FALSE !(\read(pumpRunning)) [L152] FCALL processEnvironment__wrappee__base() [L114] RET processEnvironment() [L120] CALL __utac_acc__Specification3_spec__1() [L843] int tmp ; [L844] int tmp___0 ; [L845] int tmp___1 ; [L849] CALL, EXPR isMethaneLevelCritical() [L801] int retValue_acc ; [L804] retValue_acc = methaneLevelCritical [L805] return (retValue_acc); [L849] RET, EXPR isMethaneLevelCritical() [L849] tmp = isMethaneLevelCritical() [L851] COND FALSE !(\read(tmp)) [L855] CALL, EXPR getWaterLevel() [L833] int retValue_acc ; [L836] retValue_acc = waterLevel [L837] return (retValue_acc); [L855] RET, EXPR getWaterLevel() [L855] tmp___0 = getWaterLevel() [L857] COND TRUE tmp___0 == 2 [L859] CALL, EXPR isPumpRunning() [L186] int retValue_acc ; [L189] retValue_acc = pumpRunning [L190] return (retValue_acc); [L859] RET, EXPR isPumpRunning() [L859] tmp___1 = isPumpRunning() [L861] COND FALSE !(\read(tmp___1)) [L865] CALL __automaton_fail() [L84] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 599 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1024 SDtfs, 1463 SDslu, 1289 SDs, 0 SdLazy, 2326 SolverSat, 454 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 199 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...