/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:26:07,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:26:07,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:26:07,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:26:07,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:26:07,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:26:07,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:26:07,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:26:07,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:26:07,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:26:07,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:26:07,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:26:07,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:26:07,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:26:07,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:26:07,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:26:07,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:26:07,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:26:07,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:26:07,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:26:07,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:26:07,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:26:07,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:26:07,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:26:07,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:26:07,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:26:07,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:26:07,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:26:07,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:26:07,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:26:07,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:26:07,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:26:07,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:26:07,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:26:07,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:26:07,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:26:07,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:26:07,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:26:07,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:26:07,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:26:07,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:26:07,306 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:26:07,318 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:26:07,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:26:07,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:26:07,320 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:26:07,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:26:07,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:26:07,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:26:07,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:26:07,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:26:07,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:26:07,321 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:26:07,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:26:07,322 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:26:07,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:26:07,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:26:07,322 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:26:07,323 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:26:07,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:26:07,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:26:07,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:26:07,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:26:07,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:26:07,324 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:26:07,324 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:26:07,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:26:07,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:26:07,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:26:07,736 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:26:07,737 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:26:07,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2021-02-24 03:26:07,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec783605/f73a9da19e824fc18b53bf3bf376e70e/FLAG7074ced37 [2021-02-24 03:26:08,481 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:26:08,484 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2021-02-24 03:26:08,507 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec783605/f73a9da19e824fc18b53bf3bf376e70e/FLAG7074ced37 [2021-02-24 03:26:08,722 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec783605/f73a9da19e824fc18b53bf3bf376e70e [2021-02-24 03:26:08,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:26:08,739 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:26:08,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:26:08,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:26:08,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:26:08,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:26:08" (1/1) ... [2021-02-24 03:26:08,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce3c537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:26:08, skipping insertion in model container [2021-02-24 03:26:08,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:26:08" (1/1) ... [2021-02-24 03:26:08,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:26:08,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:26:08,999 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_product01.cil.c[4729,4742] [2021-02-24 03:26:09,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:26:09,134 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:26:09,168 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_product01.cil.c[4729,4742] [2021-02-24 03:26:09,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:26:09,254 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:26:09,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:26:09 WrapperNode [2021-02-24 03:26:09,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:26:09,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:26:09,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:26:09,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:26:09,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:26:09" (1/1) ... [2021-02-24 03:26:09,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:26:09" (1/1) ... [2021-02-24 03:26:09,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:26:09" (1/1) ... [2021-02-24 03:26:09,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:26:09" (1/1) ... [2021-02-24 03:26:09,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:26:09" (1/1) ... [2021-02-24 03:26:09,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:26:09" (1/1) ... [2021-02-24 03:26:09,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:26:09" (1/1) ... [2021-02-24 03:26:09,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:26:09,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:26:09,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:26:09,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:26:09,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:26:09" (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 [2021-02-24 03:26:09,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:26:09,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:26:09,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:26:09,459 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:26:09,459 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:26:09,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:26:09,459 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:26:09,460 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:26:09,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:26:09,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:26:09,460 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:26:09,460 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:26:09,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:26:09,461 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:26:09,461 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:26:09,461 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:26:09,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-24 03:26:09,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:26:09,462 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:26:09,463 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:26:09,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:26:09,464 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:26:09,464 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:26:09,464 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:26:09,464 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:26:09,464 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:26:09,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:26:09,465 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:26:09,465 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:26:09,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:26:09,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:26:09,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:26:09,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:26:09,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:26:09,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:26:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:26:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:26:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:26:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:26:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:26:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:26:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:26:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:26:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:26:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:26:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:26:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:26:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:26:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:26:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-24 03:26:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:26:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:26:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:26:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:26:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:26:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:26:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:26:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:26:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:26:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:26:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:26:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:26:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:26:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:26:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:26:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:26:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:26:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:26:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:26:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:26:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:26:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:26:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:26:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:26:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:26:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:26:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:26:09,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:26:09,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:26:09,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:26:09,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:26:09,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:26:09,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:26:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:26:10,780 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:26:10,781 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:26:10,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:26:10 BoogieIcfgContainer [2021-02-24 03:26:10,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:26:10,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:26:10,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:26:10,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:26:10,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:26:08" (1/3) ... [2021-02-24 03:26:10,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e58b1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:26:10, skipping insertion in model container [2021-02-24 03:26:10,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:26:09" (2/3) ... [2021-02-24 03:26:10,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e58b1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:26:10, skipping insertion in model container [2021-02-24 03:26:10,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:26:10" (3/3) ... [2021-02-24 03:26:10,793 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2021-02-24 03:26:10,800 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:26:10,806 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:26:10,825 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:26:10,849 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:26:10,849 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:26:10,849 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:26:10,849 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:26:10,850 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:26:10,850 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:26:10,850 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:26:10,850 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:26:10,871 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states. [2021-02-24 03:26:10,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-24 03:26:10,890 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:26:10,891 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] [2021-02-24 03:26:10,892 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:26:10,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:26:10,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1229071768, now seen corresponding path program 1 times [2021-02-24 03:26:10,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:26:10,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825707484] [2021-02-24 03:26:10,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:26:10,979 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:26:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:11,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:11,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:11,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:11,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:11,678 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:26:11,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:26:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:11,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:11,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:11,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:26:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:11,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:11,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:11,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:26:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:11,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:11,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:11,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:26:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:11,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:11,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:11,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:26:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:11,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:11,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:11,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:26:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:11,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:11,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:11,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:26:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:11,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:11,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:11,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-24 03:26:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:11,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:11,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:11,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:26:11,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825707484] [2021-02-24 03:26:11,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:26:11,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:26:11,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147250188] [2021-02-24 03:26:11,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:26:11,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:26:11,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:26:11,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:26:11,928 INFO L87 Difference]: Start difference. First operand 264 states. Second operand 3 states. [2021-02-24 03:26:13,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:26:13,384 INFO L93 Difference]: Finished difference Result 371 states and 444 transitions. [2021-02-24 03:26:13,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:26:13,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-24 03:26:13,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:26:13,402 INFO L225 Difference]: With dead ends: 371 [2021-02-24 03:26:13,403 INFO L226 Difference]: Without dead ends: 243 [2021-02-24 03:26:13,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:26:13,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-02-24 03:26:13,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 206. [2021-02-24 03:26:13,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2021-02-24 03:26:13,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 220 transitions. [2021-02-24 03:26:13,536 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 220 transitions. Word has length 158 [2021-02-24 03:26:13,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:26:13,537 INFO L480 AbstractCegarLoop]: Abstraction has 206 states and 220 transitions. [2021-02-24 03:26:13,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:26:13,538 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 220 transitions. [2021-02-24 03:26:13,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-24 03:26:13,542 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:26:13,542 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] [2021-02-24 03:26:13,542 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:26:13,543 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:26:13,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:26:13,543 INFO L82 PathProgramCache]: Analyzing trace with hash 154637517, now seen corresponding path program 1 times [2021-02-24 03:26:13,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:26:13,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887102969] [2021-02-24 03:26:13,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:26:13,548 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:26:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:13,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:13,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:13,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:13,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:26:13,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:13,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:14,036 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:26:14,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:26:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:14,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:14,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:14,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:26:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:14,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:14,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:14,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:26:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:14,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:14,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:14,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:26:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:14,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:14,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:14,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:26:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:14,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:14,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:14,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-24 03:26:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:14,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:14,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:14,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:26:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:14,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:14,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:14,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-24 03:26:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:14,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:14,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:14,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:26:14,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887102969] [2021-02-24 03:26:14,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:26:14,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:26:14,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421574560] [2021-02-24 03:26:14,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:26:14,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:26:14,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:26:14,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:26:14,204 INFO L87 Difference]: Start difference. First operand 206 states and 220 transitions. Second operand 4 states. [2021-02-24 03:26:14,946 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:26:15,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:26:15,579 INFO L93 Difference]: Finished difference Result 287 states and 318 transitions. [2021-02-24 03:26:15,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:26:15,580 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-24 03:26:15,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:26:15,584 INFO L225 Difference]: With dead ends: 287 [2021-02-24 03:26:15,584 INFO L226 Difference]: Without dead ends: 226 [2021-02-24 03:26:15,586 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 [2021-02-24 03:26:15,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-02-24 03:26:15,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 196. [2021-02-24 03:26:15,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2021-02-24 03:26:15,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 207 transitions. [2021-02-24 03:26:15,656 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 207 transitions. Word has length 159 [2021-02-24 03:26:15,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:26:15,657 INFO L480 AbstractCegarLoop]: Abstraction has 196 states and 207 transitions. [2021-02-24 03:26:15,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:26:15,657 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 207 transitions. [2021-02-24 03:26:15,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-24 03:26:15,660 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:26:15,660 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] [2021-02-24 03:26:15,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:26:15,660 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:26:15,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:26:15,661 INFO L82 PathProgramCache]: Analyzing trace with hash 2069493044, now seen corresponding path program 1 times [2021-02-24 03:26:15,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:26:15,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450333252] [2021-02-24 03:26:15,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:26:15,665 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:26:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:15,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:15,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:26:15,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:15,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:26:15,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:15,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:26:15,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:15,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:26:15,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:15,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:16,144 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:26:16,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:26:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:16,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:16,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:16,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:16,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:26:16,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:26:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:16,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:16,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:16,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:26:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:16,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:16,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:16,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:26:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:16,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:16,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:16,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:16,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:26:16,264 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:26:16,266 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:26:16,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:26:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:16,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:16,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:16,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:26:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:16,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:16,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:16,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-24 03:26:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:16,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:16,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:16,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-02-24 03:26:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:16,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:16,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:16,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:26:16,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450333252] [2021-02-24 03:26:16,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:26:16,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:26:16,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718760539] [2021-02-24 03:26:16,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:26:16,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:26:16,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:26:16,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:26:16,339 INFO L87 Difference]: Start difference. First operand 196 states and 207 transitions. Second operand 9 states. [2021-02-24 03:26:17,164 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:26:17,589 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:26:17,921 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:26:18,296 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:26:18,655 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:26:19,040 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:26:20,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:26:20,100 INFO L93 Difference]: Finished difference Result 307 states and 343 transitions. [2021-02-24 03:26:20,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 03:26:20,101 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2021-02-24 03:26:20,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:26:20,104 INFO L225 Difference]: With dead ends: 307 [2021-02-24 03:26:20,104 INFO L226 Difference]: Without dead ends: 226 [2021-02-24 03:26:20,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-24 03:26:20,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-02-24 03:26:20,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 196. [2021-02-24 03:26:20,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2021-02-24 03:26:20,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 206 transitions. [2021-02-24 03:26:20,182 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 206 transitions. Word has length 168 [2021-02-24 03:26:20,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:26:20,183 INFO L480 AbstractCegarLoop]: Abstraction has 196 states and 206 transitions. [2021-02-24 03:26:20,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:26:20,183 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 206 transitions. [2021-02-24 03:26:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-02-24 03:26:20,185 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:26:20,186 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] [2021-02-24 03:26:20,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:26:20,186 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:26:20,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:26:20,187 INFO L82 PathProgramCache]: Analyzing trace with hash 313824382, now seen corresponding path program 1 times [2021-02-24 03:26:20,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:26:20,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048019306] [2021-02-24 03:26:20,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:26:20,191 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:26:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:20,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:26:20,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:26:20,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:26:20,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:26:20,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:26:20,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:26:20,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:26:20,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:20,652 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:26:20,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:26:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:20,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:20,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:26:20,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:26:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:20,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:20,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:26:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:20,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:20,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:26:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:20,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:20,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:26:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:20,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:20,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-24 03:26:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:20,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:20,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-24 03:26:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:20,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:20,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 03:26:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:20,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:20,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:26:20,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:26:20,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-24 03:26:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:26:20,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:26:20,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:26:20,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:26:20,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048019306] [2021-02-24 03:26:20,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:26:20,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 03:26:20,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308507852] [2021-02-24 03:26:20,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 03:26:20,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:26:20,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 03:26:20,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-24 03:26:20,876 INFO L87 Difference]: Start difference. First operand 196 states and 206 transitions. Second operand 8 states. [2021-02-24 03:26:21,435 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:26:22,747 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:26:23,193 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:26:23,583 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:26:23,978 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:26:24,347 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:26:24,734 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:26:25,083 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:26:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:26:25,401 INFO L93 Difference]: Finished difference Result 373 states and 422 transitions. [2021-02-24 03:26:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 03:26:25,401 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 171 [2021-02-24 03:26:25,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:26:25,405 INFO L225 Difference]: With dead ends: 373 [2021-02-24 03:26:25,405 INFO L226 Difference]: Without dead ends: 292 [2021-02-24 03:26:25,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-02-24 03:26:25,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-02-24 03:26:25,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 267. [2021-02-24 03:26:25,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2021-02-24 03:26:25,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 289 transitions. [2021-02-24 03:26:25,520 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 289 transitions. Word has length 171 [2021-02-24 03:26:25,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:26:25,520 INFO L480 AbstractCegarLoop]: Abstraction has 267 states and 289 transitions. [2021-02-24 03:26:25,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 03:26:25,521 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 289 transitions. [2021-02-24 03:26:25,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-02-24 03:26:25,523 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:26:25,524 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] [2021-02-24 03:26:25,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:26:25,524 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:26:25,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:26:25,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1590996381, now seen corresponding path program 1 times [2021-02-24 03:26:25,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:26:25,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482586425] [2021-02-24 03:26:25,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:26:25,528 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:26:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:26:25,595 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:26:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:26:25,658 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:26:25,833 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:26:25,833 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:26:25,834 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:26:25,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:26:25 BoogieIcfgContainer [2021-02-24 03:26:25,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:26:25,856 INFO L168 Benchmark]: Toolchain (without parser) took 17129.31 ms. Allocated memory was 151.0 MB in the beginning and 398.5 MB in the end (delta: 247.5 MB). Free memory was 126.8 MB in the beginning and 247.6 MB in the end (delta: -120.8 MB). Peak memory consumption was 127.1 MB. Max. memory is 8.0 GB. [2021-02-24 03:26:25,857 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.4 MB in the beginning and 123.1 MB in the end (delta: 215.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:26:25,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 514.79 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 106.1 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-24 03:26:25,858 INFO L168 Benchmark]: Boogie Preprocessor took 111.46 ms. Allocated memory is still 151.0 MB. Free memory was 106.1 MB in the beginning and 102.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-24 03:26:25,859 INFO L168 Benchmark]: RCFGBuilder took 1413.48 ms. Allocated memory was 151.0 MB in the beginning and 183.5 MB in the end (delta: 32.5 MB). Free memory was 102.3 MB in the beginning and 127.6 MB in the end (delta: -25.3 MB). Peak memory consumption was 35.4 MB. Max. memory is 8.0 GB. [2021-02-24 03:26:25,859 INFO L168 Benchmark]: TraceAbstraction took 15069.33 ms. Allocated memory was 183.5 MB in the beginning and 398.5 MB in the end (delta: 215.0 MB). Free memory was 127.0 MB in the beginning and 247.6 MB in the end (delta: -120.6 MB). Peak memory consumption was 93.8 MB. Max. memory is 8.0 GB. [2021-02-24 03:26:25,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.4 MB in the beginning and 123.1 MB in the end (delta: 215.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 514.79 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 106.1 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 111.46 ms. Allocated memory is still 151.0 MB. Free memory was 106.1 MB in the beginning and 102.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1413.48 ms. Allocated memory was 151.0 MB in the beginning and 183.5 MB in the end (delta: 32.5 MB). Free memory was 102.3 MB in the beginning and 127.6 MB in the end (delta: -25.3 MB). Peak memory consumption was 35.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 15069.33 ms. Allocated memory was 183.5 MB in the beginning and 398.5 MB in the end (delta: 215.0 MB). Free memory was 127.0 MB in the beginning and 247.6 MB in the end (delta: -120.6 MB). Peak memory consumption was 93.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 304]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int pumpRunning = 0; [L51] int systemActive = 1; [L309] int cleanupTimeShifts = 4; [L405] int waterLevel = 1; [L406] int methaneLevelCritical = 0; [L654] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L382] int retValue_acc ; [L383] int tmp ; [L387] FCALL select_helpers() [L388] FCALL select_features() [L389] CALL, EXPR valid_product() [L255] int retValue_acc ; [L258] retValue_acc = 1 [L259] return (retValue_acc); [L389] RET, EXPR valid_product() [L389] tmp = valid_product() [L391] COND TRUE \read(tmp) [L393] FCALL setup() [L394] CALL runTest() [L376] CALL test() [L162] int splverifierCounter ; [L163] int tmp ; [L164] int tmp___0 ; [L165] int tmp___1 ; [L166] int tmp___2 ; [L169] splverifierCounter = 0 [L171] COND TRUE 1 [L173] COND TRUE splverifierCounter < 4 [L179] tmp = __VERIFIER_nondet_int() [L181] COND TRUE \read(tmp) [L183] CALL waterRise() [L423] COND TRUE waterLevel < 2 [L424] waterLevel = waterLevel + 1 [L183] RET waterRise() [L189] tmp___0 = __VERIFIER_nondet_int() [L191] COND FALSE !(\read(tmp___0)) [L199] tmp___2 = __VERIFIER_nondet_int() [L201] COND TRUE \read(tmp___2) [L214] CALL timeShift() [L58] COND FALSE !(\read(pumpRunning)) [L65] COND TRUE \read(systemActive) [L67] FCALL processEnvironment() [L73] CALL __utac_acc__Specification3_spec__1() [L267] int tmp ; [L268] int tmp___0 ; [L269] int tmp___1 ; [L273] CALL, EXPR isMethaneLevelCritical() [L444] int retValue_acc ; [L447] retValue_acc = methaneLevelCritical [L448] return (retValue_acc); [L273] RET, EXPR isMethaneLevelCritical() [L273] tmp = isMethaneLevelCritical() [L275] COND FALSE !(\read(tmp)) [L279] CALL, EXPR getWaterLevel() [L476] int retValue_acc ; [L479] retValue_acc = waterLevel [L480] return (retValue_acc); [L279] RET, EXPR getWaterLevel() [L279] tmp___0 = getWaterLevel() [L281] COND TRUE tmp___0 == 2 [L283] CALL, EXPR isPumpRunning() [L113] int retValue_acc ; [L116] retValue_acc = pumpRunning [L117] return (retValue_acc); [L283] RET, EXPR isPumpRunning() [L283] tmp___1 = isPumpRunning() [L285] COND FALSE !(\read(tmp___1)) [L289] CALL __automaton_fail() [L304] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 587 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 755 SDtfs, 705 SDslu, 1098 SDs, 0 SdLazy, 1740 SolverSat, 225 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=267occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 122 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...