/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_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 23:59:31,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 23:59:31,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 23:59:31,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 23:59:31,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 23:59:31,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 23:59:31,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 23:59:31,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 23:59:31,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 23:59:31,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 23:59:31,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 23:59:31,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 23:59:31,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 23:59:31,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 23:59:31,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 23:59:31,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 23:59:31,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 23:59:31,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 23:59:31,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 23:59:31,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 23:59:31,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 23:59:31,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 23:59:31,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 23:59:31,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 23:59:31,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 23:59:31,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 23:59:31,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 23:59:31,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 23:59:31,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 23:59:31,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 23:59:31,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 23:59:31,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 23:59:31,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 23:59:31,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 23:59:31,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 23:59:31,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 23:59:31,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 23:59:31,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 23:59:31,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 23:59:31,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 23:59:31,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 23:59:31,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-06 23:59:31,664 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 23:59:31,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 23:59:31,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 23:59:31,669 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 23:59:31,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 23:59:31,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 23:59:31,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 23:59:31,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 23:59:31,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 23:59:31,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 23:59:31,671 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 23:59:31,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 23:59:31,672 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 23:59:31,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 23:59:31,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 23:59:31,673 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-06 23:59:31,673 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 23:59:31,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 23:59:31,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 23:59:31,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 23:59:31,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-06 23:59:31,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 23:59:31,674 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 23:59:32,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 23:59:32,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 23:59:32,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 23:59:32,130 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 23:59:32,131 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 23:59:32,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-11-06 23:59:32,231 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2339ee324/cffa71393f9b4d149fa4365a53f819b3/FLAGa91348dc7 [2020-11-06 23:59:32,952 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 23:59:32,954 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-11-06 23:59:32,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2339ee324/cffa71393f9b4d149fa4365a53f819b3/FLAGa91348dc7 [2020-11-06 23:59:33,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2339ee324/cffa71393f9b4d149fa4365a53f819b3 [2020-11-06 23:59:33,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 23:59:33,219 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 23:59:33,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 23:59:33,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 23:59:33,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 23:59:33,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:59:33" (1/1) ... [2020-11-06 23:59:33,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82e663d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:33, skipping insertion in model container [2020-11-06 23:59:33,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:59:33" (1/1) ... [2020-11-06 23:59:33,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 23:59:33,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 23:59:33,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:59:33,576 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 23:59:33,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:59:33,752 INFO L208 MainTranslator]: Completed translation [2020-11-06 23:59:33,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:33 WrapperNode [2020-11-06 23:59:33,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 23:59:33,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 23:59:33,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 23:59:33,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 23:59:33,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:33" (1/1) ... [2020-11-06 23:59:33,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:33" (1/1) ... [2020-11-06 23:59:33,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:33" (1/1) ... [2020-11-06 23:59:33,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:33" (1/1) ... [2020-11-06 23:59:33,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:33" (1/1) ... [2020-11-06 23:59:33,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:33" (1/1) ... [2020-11-06 23:59:33,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:33" (1/1) ... [2020-11-06 23:59:33,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 23:59:33,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 23:59:33,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 23:59:33,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 23:59:33,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:33" (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 [2020-11-06 23:59:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 23:59:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 23:59:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-06 23:59:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 23:59:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-06 23:59:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-06 23:59:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-06 23:59:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-06 23:59:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-06 23:59:33,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-06 23:59:33,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-06 23:59:34,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-06 23:59:34,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-06 23:59:34,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-06 23:59:34,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-06 23:59:34,000 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-06 23:59:34,000 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-06 23:59:34,000 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-06 23:59:34,001 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-06 23:59:34,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-06 23:59:34,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-06 23:59:34,003 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-06 23:59:34,005 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-06 23:59:34,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-06 23:59:34,005 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-06 23:59:34,005 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-06 23:59:34,005 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-06 23:59:34,006 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-06 23:59:34,006 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-06 23:59:34,006 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 23:59:34,006 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-06 23:59:34,006 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-06 23:59:34,006 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-06 23:59:34,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-06 23:59:34,010 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-06 23:59:34,010 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-06 23:59:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 23:59:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 23:59:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 23:59:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 23:59:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 23:59:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-06 23:59:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-06 23:59:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-06 23:59:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-06 23:59:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-06 23:59:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-06 23:59:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 23:59:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-06 23:59:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-06 23:59:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 23:59:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 23:59:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 23:59:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 23:59:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-06 23:59:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 23:59:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-06 23:59:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-06 23:59:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 23:59:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-06 23:59:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-06 23:59:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-06 23:59:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-06 23:59:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-06 23:59:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-06 23:59:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-06 23:59:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-06 23:59:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-06 23:59:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-06 23:59:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-06 23:59:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-06 23:59:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-06 23:59:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-06 23:59:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-06 23:59:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-06 23:59:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-06 23:59:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-06 23:59:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-06 23:59:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-06 23:59:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-06 23:59:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-06 23:59:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-06 23:59:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 23:59:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 23:59:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 23:59:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 23:59:35,283 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 23:59:35,283 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-06 23:59:35,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:59:35 BoogieIcfgContainer [2020-11-06 23:59:35,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 23:59:35,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 23:59:35,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 23:59:35,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 23:59:35,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:59:33" (1/3) ... [2020-11-06 23:59:35,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248fc60f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:59:35, skipping insertion in model container [2020-11-06 23:59:35,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:33" (2/3) ... [2020-11-06 23:59:35,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248fc60f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:59:35, skipping insertion in model container [2020-11-06 23:59:35,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:59:35" (3/3) ... [2020-11-06 23:59:35,298 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2020-11-06 23:59:35,327 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-06 23:59:35,332 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-06 23:59:35,345 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-06 23:59:35,370 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 23:59:35,370 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 23:59:35,371 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-06 23:59:35,371 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 23:59:35,371 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 23:59:35,371 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 23:59:35,371 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 23:59:35,371 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 23:59:35,394 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states. [2020-11-06 23:59:35,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-06 23:59:35,414 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:59:35,415 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] [2020-11-06 23:59:35,415 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:59:35,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:59:35,422 INFO L82 PathProgramCache]: Analyzing trace with hash -274691021, now seen corresponding path program 1 times [2020-11-06 23:59:35,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:59:35,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958788128] [2020-11-06 23:59:35,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:59:35,509 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:59:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:36,186 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:59:36,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:59:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:36,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:59:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:36,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:59:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:36,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:59:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:36,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:59:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:36,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-06 23:59:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:36,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-06 23:59:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:36,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-06 23:59:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:59:36,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958788128] [2020-11-06 23:59:36,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:59:36,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 23:59:36,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335881548] [2020-11-06 23:59:36,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 23:59:36,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:59:36,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 23:59:36,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 23:59:36,414 INFO L87 Difference]: Start difference. First operand 271 states. Second operand 3 states. [2020-11-06 23:59:37,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:59:37,796 INFO L93 Difference]: Finished difference Result 384 states and 459 transitions. [2020-11-06 23:59:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 23:59:37,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-06 23:59:37,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:59:37,813 INFO L225 Difference]: With dead ends: 384 [2020-11-06 23:59:37,814 INFO L226 Difference]: Without dead ends: 249 [2020-11-06 23:59:37,818 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 [2020-11-06 23:59:37,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-11-06 23:59:37,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 211. [2020-11-06 23:59:37,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-11-06 23:59:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 225 transitions. [2020-11-06 23:59:37,997 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 225 transitions. Word has length 159 [2020-11-06 23:59:37,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:59:37,999 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 225 transitions. [2020-11-06 23:59:37,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 23:59:37,999 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 225 transitions. [2020-11-06 23:59:38,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-06 23:59:38,004 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:59:38,004 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] [2020-11-06 23:59:38,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 23:59:38,005 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:59:38,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:59:38,009 INFO L82 PathProgramCache]: Analyzing trace with hash 481147691, now seen corresponding path program 1 times [2020-11-06 23:59:38,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:59:38,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849120643] [2020-11-06 23:59:38,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:59:38,019 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:59:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:38,611 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:59:38,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:59:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:38,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:59:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:38,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:59:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:38,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:59:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:38,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:59:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:38,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-06 23:59:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:38,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-06 23:59:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:38,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-06 23:59:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:59:38,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849120643] [2020-11-06 23:59:38,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:59:38,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 23:59:38,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780637464] [2020-11-06 23:59:38,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 23:59:38,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:59:38,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 23:59:38,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 23:59:38,729 INFO L87 Difference]: Start difference. First operand 211 states and 225 transitions. Second operand 4 states. [2020-11-06 23:59:39,568 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:59:40,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:59:40,308 INFO L93 Difference]: Finished difference Result 294 states and 326 transitions. [2020-11-06 23:59:40,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 23:59:40,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-06 23:59:40,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:59:40,312 INFO L225 Difference]: With dead ends: 294 [2020-11-06 23:59:40,313 INFO L226 Difference]: Without dead ends: 232 [2020-11-06 23:59:40,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-06 23:59:40,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-11-06 23:59:40,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 201. [2020-11-06 23:59:40,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-11-06 23:59:40,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 212 transitions. [2020-11-06 23:59:40,395 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 212 transitions. Word has length 160 [2020-11-06 23:59:40,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:59:40,395 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 212 transitions. [2020-11-06 23:59:40,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 23:59:40,396 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 212 transitions. [2020-11-06 23:59:40,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-06 23:59:40,398 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:59:40,399 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] [2020-11-06 23:59:40,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 23:59:40,399 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:59:40,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:59:40,400 INFO L82 PathProgramCache]: Analyzing trace with hash 218643249, now seen corresponding path program 1 times [2020-11-06 23:59:40,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:59:40,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845295900] [2020-11-06 23:59:40,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:59:40,404 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:59:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:40,866 WARN L194 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:59:40,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:59:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:40,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:59:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:40,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:59:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:40,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:59:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:40,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:59:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:40,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-06 23:59:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:41,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-06 23:59:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:41,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-06 23:59:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:41,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-06 23:59:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:41,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:59:41,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845295900] [2020-11-06 23:59:41,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:59:41,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 23:59:41,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523956689] [2020-11-06 23:59:41,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 23:59:41,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:59:41,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 23:59:41,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-06 23:59:41,076 INFO L87 Difference]: Start difference. First operand 201 states and 212 transitions. Second operand 10 states. [2020-11-06 23:59:41,715 WARN L194 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:59:42,212 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:59:42,616 WARN L194 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:59:43,014 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:59:43,418 WARN L194 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:59:43,786 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:59:45,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:59:45,211 INFO L93 Difference]: Finished difference Result 340 states and 388 transitions. [2020-11-06 23:59:45,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-06 23:59:45,212 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-06 23:59:45,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:59:45,219 INFO L225 Difference]: With dead ends: 340 [2020-11-06 23:59:45,222 INFO L226 Difference]: Without dead ends: 254 [2020-11-06 23:59:45,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-11-06 23:59:45,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-11-06 23:59:45,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 201. [2020-11-06 23:59:45,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-11-06 23:59:45,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 211 transitions. [2020-11-06 23:59:45,332 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 211 transitions. Word has length 173 [2020-11-06 23:59:45,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:59:45,333 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 211 transitions. [2020-11-06 23:59:45,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 23:59:45,333 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 211 transitions. [2020-11-06 23:59:45,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-11-06 23:59:45,336 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:59:45,336 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] [2020-11-06 23:59:45,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 23:59:45,337 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:59:45,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:59:45,338 INFO L82 PathProgramCache]: Analyzing trace with hash -945491948, now seen corresponding path program 1 times [2020-11-06 23:59:45,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:59:45,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214749869] [2020-11-06 23:59:45,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:59:45,341 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:59:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:45,775 WARN L194 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:59:45,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:59:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:45,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:59:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:45,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:59:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:45,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:59:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:45,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:59:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:45,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-06 23:59:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:45,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-06 23:59:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:45,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-11-06 23:59:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:45,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-11-06 23:59:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:45,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-11-06 23:59:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:45,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:59:45,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214749869] [2020-11-06 23:59:45,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:59:45,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-06 23:59:45,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907762596] [2020-11-06 23:59:45,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-06 23:59:45,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:59:45,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-06 23:59:45,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-06 23:59:45,962 INFO L87 Difference]: Start difference. First operand 201 states and 211 transitions. Second operand 9 states. [2020-11-06 23:59:46,613 WARN L194 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:59:48,209 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:59:48,677 WARN L194 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:59:49,107 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:59:49,526 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:59:49,909 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:59:50,321 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:59:50,688 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:59:51,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:59:51,254 INFO L93 Difference]: Finished difference Result 432 states and 503 transitions. [2020-11-06 23:59:51,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-06 23:59:51,254 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-11-06 23:59:51,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:59:51,259 INFO L225 Difference]: With dead ends: 432 [2020-11-06 23:59:51,259 INFO L226 Difference]: Without dead ends: 346 [2020-11-06 23:59:51,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-06 23:59:51,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-11-06 23:59:51,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 276. [2020-11-06 23:59:51,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-11-06 23:59:51,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 298 transitions. [2020-11-06 23:59:51,378 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 298 transitions. Word has length 176 [2020-11-06 23:59:51,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:59:51,379 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 298 transitions. [2020-11-06 23:59:51,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-06 23:59:51,379 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 298 transitions. [2020-11-06 23:59:51,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-11-06 23:59:51,382 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:59:51,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:59:51,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 23:59:51,383 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:59:51,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:59:51,383 INFO L82 PathProgramCache]: Analyzing trace with hash -650069955, now seen corresponding path program 1 times [2020-11-06 23:59:51,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:59:51,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457721549] [2020-11-06 23:59:51,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:59:51,387 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:59:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:59:51,463 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:59:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:59:51,537 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:59:51,724 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-06 23:59:51,724 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 23:59:51,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-06 23:59:51,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:59:51 BoogieIcfgContainer [2020-11-06 23:59:51,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 23:59:51,749 INFO L168 Benchmark]: Toolchain (without parser) took 18534.54 ms. Allocated memory was 154.1 MB in the beginning and 396.4 MB in the end (delta: 242.2 MB). Free memory was 137.2 MB in the beginning and 196.4 MB in the end (delta: -59.2 MB). Peak memory consumption was 182.6 MB. Max. memory is 8.0 GB. [2020-11-06 23:59:51,750 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 154.1 MB. Free memory was 128.6 MB in the beginning and 128.6 MB in the end (delta: 77.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 23:59:51,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 532.67 ms. Allocated memory is still 154.1 MB. Free memory was 136.5 MB in the beginning and 131.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-11-06 23:59:51,752 INFO L168 Benchmark]: Boogie Preprocessor took 164.84 ms. Allocated memory is still 154.1 MB. Free memory was 131.6 MB in the beginning and 127.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-06 23:59:51,752 INFO L168 Benchmark]: RCFGBuilder took 1364.79 ms. Allocated memory is still 154.1 MB. Free memory was 127.5 MB in the beginning and 71.6 MB in the end (delta: 55.9 MB). Peak memory consumption was 56.1 MB. Max. memory is 8.0 GB. [2020-11-06 23:59:51,753 INFO L168 Benchmark]: TraceAbstraction took 16459.06 ms. Allocated memory was 154.1 MB in the beginning and 396.4 MB in the end (delta: 242.2 MB). Free memory was 71.1 MB in the beginning and 196.4 MB in the end (delta: -125.3 MB). Peak memory consumption was 117.0 MB. Max. memory is 8.0 GB. [2020-11-06 23:59:51,757 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 154.1 MB. Free memory was 128.6 MB in the beginning and 128.6 MB in the end (delta: 77.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 532.67 ms. Allocated memory is still 154.1 MB. Free memory was 136.5 MB in the beginning and 131.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 164.84 ms. Allocated memory is still 154.1 MB. Free memory was 131.6 MB in the beginning and 127.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1364.79 ms. Allocated memory is still 154.1 MB. Free memory was 127.5 MB in the beginning and 71.6 MB in the end (delta: 55.9 MB). Peak memory consumption was 56.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16459.06 ms. Allocated memory was 154.1 MB in the beginning and 396.4 MB in the end (delta: 242.2 MB). Free memory was 71.1 MB in the beginning and 196.4 MB in the end (delta: -125.3 MB). Peak memory consumption was 117.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L258] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L464] int pumpRunning = 0; [L465] int systemActive = 1; [L685] int cleanupTimeShifts = 4; [L781] int waterLevel = 1; [L782] int methaneLevelCritical = 0; [L758] int retValue_acc ; [L759] int tmp ; [L763] FCALL select_helpers() [L764] FCALL select_features() [L765] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L765] RET, EXPR valid_product() [L765] tmp = valid_product() [L767] COND TRUE \read(tmp) [L769] FCALL setup() [L770] CALL runTest() [L752] CALL test() [L619] int splverifierCounter ; [L620] int tmp ; [L621] int tmp___0 ; [L622] int tmp___1 ; [L623] int tmp___2 ; [L626] splverifierCounter = 0 [L628] COND TRUE 1 [L630] COND TRUE splverifierCounter < 4 [L636] tmp = __VERIFIER_nondet_int() [L638] COND TRUE \read(tmp) [L640] CALL waterRise() [L799] COND TRUE waterLevel < 2 [L800] waterLevel = waterLevel + 1 [L640] RET waterRise() [L646] tmp___0 = __VERIFIER_nondet_int() [L648] COND FALSE !(\read(tmp___0)) [L656] tmp___2 = __VERIFIER_nondet_int() [L658] COND TRUE \read(tmp___2) [L660] CALL startSystem() [L575] systemActive = 1 [L660] RET startSystem() [L673] CALL timeShift() [L472] COND FALSE !(\read(pumpRunning)) [L479] COND TRUE \read(systemActive) [L481] FCALL processEnvironment() [L487] CALL __utac_acc__Specification3_spec__1() [L582] int tmp ; [L583] int tmp___0 ; [L584] int tmp___1 ; [L588] CALL, EXPR isMethaneLevelCritical() [L820] int retValue_acc ; [L823] retValue_acc = methaneLevelCritical [L824] return (retValue_acc); [L588] RET, EXPR isMethaneLevelCritical() [L588] tmp = isMethaneLevelCritical() [L590] COND FALSE !(\read(tmp)) [L594] CALL, EXPR getWaterLevel() [L852] int retValue_acc ; [L855] retValue_acc = waterLevel [L856] return (retValue_acc); [L594] RET, EXPR getWaterLevel() [L594] tmp___0 = getWaterLevel() [L596] COND TRUE tmp___0 == 2 [L598] CALL, EXPR isPumpRunning() [L527] int retValue_acc ; [L530] retValue_acc = pumpRunning [L531] return (retValue_acc); [L598] RET, EXPR isPumpRunning() [L598] tmp___1 = isPumpRunning() [L600] COND FALSE !(\read(tmp___1)) [L604] CALL __automaton_fail() [L84] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product02.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 595 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 780 SDtfs, 997 SDslu, 1216 SDs, 0 SdLazy, 1889 SolverSat, 309 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 192 StatesRemovedByMinimization, 4 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...