/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:33:20,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:33:20,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:33:20,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:33:20,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:33:20,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:33:20,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:33:20,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:33:20,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:33:20,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:33:20,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:33:20,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:33:20,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:33:20,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:33:20,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:33:20,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:33:20,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:33:20,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:33:20,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:33:20,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:33:20,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:33:20,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:33:20,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:33:20,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:33:20,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:33:20,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:33:20,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:33:20,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:33:20,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:33:20,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:33:20,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:33:20,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:33:20,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:33:20,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:33:20,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:33:20,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:33:20,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:33:20,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:33:20,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:33:20,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:33:20,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:33:20,286 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:33:20,313 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:33:20,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:33:20,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:33:20,318 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:33:20,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:33:20,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:33:20,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:33:20,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:33:20,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:33:20,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:33:20,322 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:33:20,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:33:20,323 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:33:20,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:33:20,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:33:20,323 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:33:20,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:33:20,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:33:20,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:33:20,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:33:20,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:33:20,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:33:20,325 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:33:20,620 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:33:20,633 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:33:20,637 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:33:20,638 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:33:20,639 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:33:20,640 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c [2020-07-07 12:33:20,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e73f29d5/1b776d3eae164c54862b4c648d3741b1/FLAG3e08f7ea9 [2020-07-07 12:33:21,265 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:33:21,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c [2020-07-07 12:33:21,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e73f29d5/1b776d3eae164c54862b4c648d3741b1/FLAG3e08f7ea9 [2020-07-07 12:33:21,532 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e73f29d5/1b776d3eae164c54862b4c648d3741b1 [2020-07-07 12:33:21,543 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:33:21,545 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:33:21,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:21,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:33:21,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:33:21,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:21" (1/1) ... [2020-07-07 12:33:21,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@649024f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:21, skipping insertion in model container [2020-07-07 12:33:21,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:21" (1/1) ... [2020-07-07 12:33:21,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:33:21,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:33:22,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:22,112 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:33:22,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:22,265 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:33:22,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:22 WrapperNode [2020-07-07 12:33:22,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:22,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:33:22,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:33:22,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:33:22,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:22" (1/1) ... [2020-07-07 12:33:22,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:22" (1/1) ... [2020-07-07 12:33:22,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:22" (1/1) ... [2020-07-07 12:33:22,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:22" (1/1) ... [2020-07-07 12:33:22,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:22" (1/1) ... [2020-07-07 12:33:22,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:22" (1/1) ... [2020-07-07 12:33:22,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:22" (1/1) ... [2020-07-07 12:33:22,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:33:22,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:33:22,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:33:22,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:33:22,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:22" (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 [2020-07-07 12:33:22,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:33:22,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:33:22,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:22,406 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:33:22,406 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:33:22,406 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:33:22,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:33:22,406 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:33:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:33:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 12:33:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:33:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:33:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-07 12:33:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:33:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:33:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:33:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:33:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:33:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:33:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 12:33:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:33:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:33:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:33:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:33:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:33:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:33:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:33:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:33:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:33:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:33:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:33:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:33:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:33:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:33:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:33:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:33:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:33:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:33:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:33:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:33:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:33:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:33:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:33:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:33:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 12:33:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:33:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:33:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:33:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:33:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:33:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:33:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:33:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:33:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:33:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:33:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 12:33:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-07 12:33:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:33:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:33:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:33:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:33:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:33:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:33:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:33:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:33:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:33:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:33:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:33:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:33:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:33:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:33:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:33:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:33:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:33:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:33:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:33:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:33:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:33:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:33:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:33:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:33:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:33:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:33:23,496 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:33:23,496 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:33:23,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:23 BoogieIcfgContainer [2020-07-07 12:33:23,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:33:23,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:33:23,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:33:23,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:33:23,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:33:21" (1/3) ... [2020-07-07 12:33:23,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e0f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:23, skipping insertion in model container [2020-07-07 12:33:23,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:22" (2/3) ... [2020-07-07 12:33:23,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e0f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:23, skipping insertion in model container [2020-07-07 12:33:23,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:23" (3/3) ... [2020-07-07 12:33:23,511 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2020-07-07 12:33:23,521 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:33:23,530 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:33:23,543 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:33:23,565 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:33:23,565 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:33:23,565 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:33:23,565 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:33:23,566 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:33:23,566 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:33:23,566 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:33:23,566 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:33:23,587 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-07-07 12:33:23,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:33:23,609 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:23,610 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] [2020-07-07 12:33:23,611 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:23,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:23,617 INFO L82 PathProgramCache]: Analyzing trace with hash -2023786864, now seen corresponding path program 1 times [2020-07-07 12:33:23,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:23,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735734948] [2020-07-07 12:33:23,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:24,372 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:24,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:24,553 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:24,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735734948] [2020-07-07 12:33:24,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:24,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:33:24,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002992053] [2020-07-07 12:33:24,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:33:24,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:24,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:33:24,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:24,583 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2020-07-07 12:33:25,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:25,968 INFO L93 Difference]: Finished difference Result 491 states and 589 transitions. [2020-07-07 12:33:25,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:33:25,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:33:25,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:25,988 INFO L225 Difference]: With dead ends: 491 [2020-07-07 12:33:25,988 INFO L226 Difference]: Without dead ends: 304 [2020-07-07 12:33:25,994 INFO L675 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 [2020-07-07 12:33:26,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-07-07 12:33:26,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 261. [2020-07-07 12:33:26,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-07-07 12:33:26,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 286 transitions. [2020-07-07 12:33:26,126 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 286 transitions. Word has length 153 [2020-07-07 12:33:26,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:26,127 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 286 transitions. [2020-07-07 12:33:26,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:33:26,128 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 286 transitions. [2020-07-07 12:33:26,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:33:26,133 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:26,133 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] [2020-07-07 12:33:26,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:33:26,133 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:26,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:26,134 INFO L82 PathProgramCache]: Analyzing trace with hash 936864637, now seen corresponding path program 1 times [2020-07-07 12:33:26,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:26,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631023627] [2020-07-07 12:33:26,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:26,505 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:26,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:26,598 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:26,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631023627] [2020-07-07 12:33:26,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:26,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:33:26,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600628141] [2020-07-07 12:33:26,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:33:26,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:26,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:33:26,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:33:26,601 INFO L87 Difference]: Start difference. First operand 261 states and 286 transitions. Second operand 4 states. [2020-07-07 12:33:27,177 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:28,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:28,143 INFO L93 Difference]: Finished difference Result 402 states and 456 transitions. [2020-07-07 12:33:28,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:33:28,150 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:33:28,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:28,155 INFO L225 Difference]: With dead ends: 402 [2020-07-07 12:33:28,155 INFO L226 Difference]: Without dead ends: 287 [2020-07-07 12:33:28,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:33:28,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-07-07 12:33:28,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 251. [2020-07-07 12:33:28,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-07-07 12:33:28,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 273 transitions. [2020-07-07 12:33:28,289 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 273 transitions. Word has length 154 [2020-07-07 12:33:28,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:28,290 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 273 transitions. [2020-07-07 12:33:28,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:33:28,291 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 273 transitions. [2020-07-07 12:33:28,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 12:33:28,293 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:28,294 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] [2020-07-07 12:33:28,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:33:28,294 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:28,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:28,295 INFO L82 PathProgramCache]: Analyzing trace with hash -367935570, now seen corresponding path program 1 times [2020-07-07 12:33:28,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:28,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696457490] [2020-07-07 12:33:28,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:28,682 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:28,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:28,898 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:28,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [696457490] [2020-07-07 12:33:28,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:28,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:33:28,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944914468] [2020-07-07 12:33:28,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:33:28,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:28,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:33:28,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:33:28,901 INFO L87 Difference]: Start difference. First operand 251 states and 273 transitions. Second operand 9 states. [2020-07-07 12:33:29,368 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:29,725 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:33:29,958 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:33:30,194 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:30,472 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:30,704 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:31,545 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:33,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:33,794 INFO L93 Difference]: Finished difference Result 675 states and 782 transitions. [2020-07-07 12:33:33,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:33:33,795 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-07 12:33:33,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:33,800 INFO L225 Difference]: With dead ends: 675 [2020-07-07 12:33:33,800 INFO L226 Difference]: Without dead ends: 534 [2020-07-07 12:33:33,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-07 12:33:33,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2020-07-07 12:33:33,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 467. [2020-07-07 12:33:33,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-07-07 12:33:33,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 526 transitions. [2020-07-07 12:33:33,974 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 526 transitions. Word has length 163 [2020-07-07 12:33:33,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:33,975 INFO L479 AbstractCegarLoop]: Abstraction has 467 states and 526 transitions. [2020-07-07 12:33:33,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:33:33,975 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 526 transitions. [2020-07-07 12:33:33,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 12:33:33,979 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:33,979 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] [2020-07-07 12:33:33,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:33:33,980 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:33,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:33,980 INFO L82 PathProgramCache]: Analyzing trace with hash 586608814, now seen corresponding path program 1 times [2020-07-07 12:33:33,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:33,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768655659] [2020-07-07 12:33:33,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:34,258 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:34,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:34,402 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:34,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768655659] [2020-07-07 12:33:34,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:34,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:33:34,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783095875] [2020-07-07 12:33:34,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:33:34,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:34,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:33:34,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:33:34,405 INFO L87 Difference]: Start difference. First operand 467 states and 526 transitions. Second operand 9 states. [2020-07-07 12:33:34,926 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:37,079 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:37,334 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:37,612 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:37,893 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:38,122 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:38,377 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:38,595 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:39,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:39,389 INFO L93 Difference]: Finished difference Result 1264 states and 1525 transitions. [2020-07-07 12:33:39,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:33:39,389 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-07 12:33:39,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:39,397 INFO L225 Difference]: With dead ends: 1264 [2020-07-07 12:33:39,397 INFO L226 Difference]: Without dead ends: 907 [2020-07-07 12:33:39,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:33:39,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-07-07 12:33:39,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 807. [2020-07-07 12:33:39,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-07-07 12:33:39,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 935 transitions. [2020-07-07 12:33:39,746 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 935 transitions. Word has length 172 [2020-07-07 12:33:39,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:39,747 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 935 transitions. [2020-07-07 12:33:39,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:33:39,748 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 935 transitions. [2020-07-07 12:33:39,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:33:39,752 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:39,753 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] [2020-07-07 12:33:39,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:33:39,753 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:39,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:39,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1309262380, now seen corresponding path program 1 times [2020-07-07 12:33:39,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:39,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [912279333] [2020-07-07 12:33:39,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:40,016 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:40,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:40,183 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:40,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [912279333] [2020-07-07 12:33:40,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:40,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 12:33:40,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313654206] [2020-07-07 12:33:40,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 12:33:40,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:40,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 12:33:40,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 12:33:40,187 INFO L87 Difference]: Start difference. First operand 807 states and 935 transitions. Second operand 6 states. [2020-07-07 12:33:40,640 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:41,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:41,597 INFO L93 Difference]: Finished difference Result 1289 states and 1536 transitions. [2020-07-07 12:33:41,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 12:33:41,598 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-07-07 12:33:41,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:41,602 INFO L225 Difference]: With dead ends: 1289 [2020-07-07 12:33:41,603 INFO L226 Difference]: Without dead ends: 592 [2020-07-07 12:33:41,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:33:41,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2020-07-07 12:33:41,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 562. [2020-07-07 12:33:41,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-07-07 12:33:41,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 613 transitions. [2020-07-07 12:33:41,836 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 613 transitions. Word has length 177 [2020-07-07 12:33:41,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:41,837 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 613 transitions. [2020-07-07 12:33:41,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 12:33:41,837 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 613 transitions. [2020-07-07 12:33:41,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:33:41,841 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:41,841 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] [2020-07-07 12:33:41,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:33:41,841 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:41,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:41,842 INFO L82 PathProgramCache]: Analyzing trace with hash 95529110, now seen corresponding path program 1 times [2020-07-07 12:33:41,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:41,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076131402] [2020-07-07 12:33:41,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:33:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:33:42,172 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:42,173 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:33:42,173 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:33:42,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:33:42,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:33:42 BoogieIcfgContainer [2020-07-07 12:33:42,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:33:42,213 INFO L168 Benchmark]: Toolchain (without parser) took 20667.44 ms. Allocated memory was 137.9 MB in the beginning and 672.1 MB in the end (delta: 534.2 MB). Free memory was 102.3 MB in the beginning and 321.4 MB in the end (delta: -219.1 MB). Peak memory consumption was 315.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:42,214 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory is still 120.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 12:33:42,217 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.24 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 171.7 MB in the end (delta: -69.9 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:42,218 INFO L168 Benchmark]: Boogie Preprocessor took 84.69 ms. Allocated memory is still 202.4 MB. Free memory was 171.7 MB in the beginning and 167.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:42,219 INFO L168 Benchmark]: RCFGBuilder took 1151.54 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 166.7 MB in the beginning and 177.1 MB in the end (delta: -10.4 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:42,220 INFO L168 Benchmark]: TraceAbstraction took 18706.22 ms. Allocated memory was 234.4 MB in the beginning and 672.1 MB in the end (delta: 437.8 MB). Free memory was 175.4 MB in the beginning and 321.4 MB in the end (delta: -146.0 MB). Peak memory consumption was 291.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:42,223 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory is still 120.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.24 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 171.7 MB in the end (delta: -69.9 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.69 ms. Allocated memory is still 202.4 MB. Free memory was 171.7 MB in the beginning and 167.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1151.54 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 166.7 MB in the beginning and 177.1 MB in the end (delta: -10.4 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18706.22 ms. Allocated memory was 234.4 MB in the beginning and 672.1 MB in the end (delta: 437.8 MB). Free memory was 175.4 MB in the beginning and 321.4 MB in the end (delta: -146.0 MB). Peak memory consumption was 291.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 541]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L177] int pumpRunning = 0; [L178] int systemActive = 1; [L438] int cleanupTimeShifts = 4; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L514] int retValue_acc ; [L515] int tmp ; [L519] FCALL select_helpers() [L520] FCALL select_features() [L521] CALL, EXPR valid_product() [L938] int retValue_acc ; [L941] retValue_acc = 1 [L942] return (retValue_acc); [L521] RET, EXPR valid_product() [L521] tmp = valid_product() [L523] COND TRUE \read(tmp) [L525] FCALL setup() [L526] CALL runTest() [L505] CALL test() [L372] int splverifierCounter ; [L373] int tmp ; [L374] int tmp___0 ; [L375] int tmp___1 ; [L376] int tmp___2 ; [L379] splverifierCounter = 0 [L381] COND TRUE 1 [L383] COND TRUE splverifierCounter < 4 [L389] tmp = __VERIFIER_nondet_int() [L391] COND TRUE \read(tmp) [L393] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L393] RET waterRise() [L399] tmp___0 = __VERIFIER_nondet_int() [L401] COND FALSE !(\read(tmp___0)) [L409] tmp___2 = __VERIFIER_nondet_int() [L411] COND FALSE !(\read(tmp___2)) [L415] tmp___1 = __VERIFIER_nondet_int() [L417] COND TRUE \read(tmp___1) [L419] CALL stopSystem() [L358] COND FALSE !(\read(pumpRunning)) [L365] systemActive = 0 [L419] RET stopSystem() [L426] CALL timeShift() [L184] COND FALSE !(\read(pumpRunning)) [L191] COND FALSE !(\read(systemActive)) [L199] CALL __utac_acc__Specification3_spec__1() [L139] int tmp ; [L140] int tmp___0 ; [L141] int tmp___1 ; [L145] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L145] RET, EXPR isMethaneLevelCritical() [L145] tmp = isMethaneLevelCritical() [L147] COND FALSE !(\read(tmp)) [L151] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L151] RET, EXPR getWaterLevel() [L151] tmp___0 = getWaterLevel() [L153] COND TRUE tmp___0 == 2 [L155] CALL, EXPR isPumpRunning() [L291] int retValue_acc ; [L294] retValue_acc = pumpRunning [L295] return (retValue_acc); [L155] RET, EXPR isPumpRunning() [L155] tmp___1 = isPumpRunning() [L157] COND FALSE !(\read(tmp___1)) [L161] CALL __automaton_fail() [L541] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1185 SDtfs, 1618 SDslu, 1507 SDs, 0 SdLazy, 3481 SolverSat, 521 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=807occurred 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: 0.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 276 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...