/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:42:43,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:42:43,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:42:43,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:42:43,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:42:43,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:42:43,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:42:43,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:42:43,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:42:43,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:42:43,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:42:43,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:42:43,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:42:43,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:42:43,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:42:43,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:42:43,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:42:43,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:42:43,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:42:43,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:42:43,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:42:43,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:42:43,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:42:43,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:42:43,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:42:43,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:42:43,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:42:43,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:42:43,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:42:43,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:42:43,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:42:43,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:42:43,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:42:43,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:42:43,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:42:43,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:42:43,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:42:43,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:42:43,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:42:43,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:42:43,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:42:43,251 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 12:42:43,293 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:42:43,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:42:43,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:42:43,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:42:43,298 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:42:43,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:42:43,298 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:42:43,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:42:43,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:42:43,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:42:43,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:42:43,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:42:43,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:42:43,299 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:42:43,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:42:43,300 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:42:43,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:42:43,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:42:43,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:42:43,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:42:43,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:42:43,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:42:43,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:42:43,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:42:43,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:42:43,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:42:43,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:42:43,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:42:43,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:42:43,304 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:42:43,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:42:43,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:42:43,634 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:42:43,636 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:42:43,637 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:42:43,638 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-13 12:42:43,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5edcfc66/f16163df8df34b2f937f8b417ab92926/FLAG5d0f16fd0 [2020-10-13 12:42:44,268 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:42:44,268 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-13 12:42:44,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5edcfc66/f16163df8df34b2f937f8b417ab92926/FLAG5d0f16fd0 [2020-10-13 12:42:44,527 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5edcfc66/f16163df8df34b2f937f8b417ab92926 [2020-10-13 12:42:44,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:42:44,536 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:42:44,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:42:44,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:42:44,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:42:44,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:42:44" (1/1) ... [2020-10-13 12:42:44,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5ae353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:44, skipping insertion in model container [2020-10-13 12:42:44,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:42:44" (1/1) ... [2020-10-13 12:42:44,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:42:44,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:42:45,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:42:45,050 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:42:45,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:42:45,166 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:42:45,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:45 WrapperNode [2020-10-13 12:42:45,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:42:45,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:42:45,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:42:45,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:42:45,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:45" (1/1) ... [2020-10-13 12:42:45,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:45" (1/1) ... [2020-10-13 12:42:45,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:45" (1/1) ... [2020-10-13 12:42:45,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:45" (1/1) ... [2020-10-13 12:42:45,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:45" (1/1) ... [2020-10-13 12:42:45,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:45" (1/1) ... [2020-10-13 12:42:45,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:45" (1/1) ... [2020-10-13 12:42:45,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:42:45,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:42:45,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:42:45,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:42:45,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:45" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-13 12:42:45,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:42:45,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:42:45,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:42:45,382 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:42:45,382 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:42:45,382 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-13 12:42:45,382 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:42:45,383 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:42:45,383 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:42:45,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:42:45,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:42:45,384 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:42:45,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-13 12:42:45,384 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-13 12:42:45,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:42:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:42:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:42:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:42:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:42:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:42:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:42:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:42:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:42:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:42:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:42:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:42:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-13 12:42:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:42:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:42:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:42:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:42:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:42:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:42:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:42:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:42:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:42:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:42:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:42:45,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:42:45,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:42:45,391 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:42:45,391 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:42:45,391 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:42:45,391 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-13 12:42:45,392 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:42:45,393 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:42:45,393 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:42:45,393 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:42:45,393 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:42:45,393 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:42:45,394 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-13 12:42:45,394 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:42:45,394 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:42:45,394 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:42:45,394 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:42:45,395 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:42:45,395 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:42:45,395 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-13 12:42:45,395 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-13 12:42:45,395 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:42:45,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:42:45,395 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:42:45,396 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:42:45,396 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:42:45,396 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:42:45,396 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:42:45,396 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:42:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:42:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:42:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:42:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:42:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:42:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:42:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:42:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:42:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:42:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:42:45,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:42:45,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:42:45,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:42:45,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:42:45,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:42:45,400 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:42:45,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:42:45,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:42:45,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:42:45,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:42:45,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:42:45,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:42:45,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:42:46,479 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:42:46,480 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:42:46,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:42:46 BoogieIcfgContainer [2020-10-13 12:42:46,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:42:46,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:42:46,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:42:46,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:42:46,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:42:44" (1/3) ... [2020-10-13 12:42:46,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1056f038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:42:46, skipping insertion in model container [2020-10-13 12:42:46,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:45" (2/3) ... [2020-10-13 12:42:46,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1056f038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:42:46, skipping insertion in model container [2020-10-13 12:42:46,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:42:46" (3/3) ... [2020-10-13 12:42:46,495 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-10-13 12:42:46,507 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:42:46,516 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:42:46,531 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:42:46,555 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:42:46,555 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:42:46,555 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:42:46,556 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:42:46,556 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:42:46,556 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:42:46,556 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:42:46,556 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:42:46,578 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-10-13 12:42:46,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 12:42:46,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:42:46,590 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] [2020-10-13 12:42:46,590 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:42:46,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:42:46,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1153926417, now seen corresponding path program 1 times [2020-10-13 12:42:46,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:42:46,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [194038428] [2020-10-13 12:42:46,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:42:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:46,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:47,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:47,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 12:42:49,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:42:49,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2458 [2020-10-13 12:42:49,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:42:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 12:42:49,758 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:42:49,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:42:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:49,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 12:42:49,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:49,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:49,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:42:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:49,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:49,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:49,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:49,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:42:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:49,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:49,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:49,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:49,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:42:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:49,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:49,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:49,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:42:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:49,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:49,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:49,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:49,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:42:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:49,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:49,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:49,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:49,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:42:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:49,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:49,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:49,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:49,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:42:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:49,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:49,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:49,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:49,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:42:49,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [194038428] [2020-10-13 12:42:49,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:42:49,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:42:49,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474386213] [2020-10-13 12:42:49,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:42:49,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:42:49,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:42:49,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:42:49,935 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-10-13 12:42:51,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:42:51,068 INFO L93 Difference]: Finished difference Result 281 states and 368 transitions. [2020-10-13 12:42:51,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:42:51,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-13 12:42:51,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:42:51,088 INFO L225 Difference]: With dead ends: 281 [2020-10-13 12:42:51,088 INFO L226 Difference]: Without dead ends: 152 [2020-10-13 12:42:51,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:42:51,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-13 12:42:51,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2020-10-13 12:42:51,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-13 12:42:51,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2020-10-13 12:42:51,188 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 52 [2020-10-13 12:42:51,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:42:51,189 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2020-10-13 12:42:51,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:42:51,190 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2020-10-13 12:42:51,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-13 12:42:51,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:42:51,196 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] [2020-10-13 12:42:51,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:42:51,197 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:42:51,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:42:51,197 INFO L82 PathProgramCache]: Analyzing trace with hash -548767927, now seen corresponding path program 1 times [2020-10-13 12:42:51,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:42:51,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1437108679] [2020-10-13 12:42:51,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:42:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:51,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:51,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:51,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:53,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:53,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 12:42:53,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:42:53,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2150 [2020-10-13 12:42:53,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:53,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:53,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:42:53,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:42:53,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:53,663 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:42:53,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:42:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:53,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:53,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:53,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:53,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:53,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 12:42:53,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:53,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:53,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:53,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:53,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:53,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:42:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:53,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:53,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:53,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:53,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:53,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:53,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:53,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:53,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:53,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:53,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:53,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:42:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:53,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:53,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:53,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:53,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:53,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:42:53,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:53,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:53,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:53,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:53,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:53,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:42:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:53,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:53,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:53,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:53,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:53,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:53,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:53,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:53,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:53,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:53,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:53,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:42:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:53,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:53,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:53,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:53,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:53,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:42:53,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:53,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:53,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:53,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:53,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:53,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:42:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:53,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:53,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:53,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:53,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:53,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:53,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:53,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:53,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:53,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:53,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:53,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:42:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:53,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:53,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:53,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:53,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:53,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:53,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:53,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:53,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:53,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:53,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:53,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 12:42:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:53,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:53,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:53,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:53,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:53,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:53,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:53,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:53,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:53,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:53,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:53,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:42:53,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1437108679] [2020-10-13 12:42:53,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:42:53,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:42:53,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811159085] [2020-10-13 12:42:53,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:42:53,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:42:53,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:42:53,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:42:53,753 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 4 states. [2020-10-13 12:42:54,308 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:42:54,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:42:54,981 INFO L93 Difference]: Finished difference Result 205 states and 249 transitions. [2020-10-13 12:42:54,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:42:54,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-13 12:42:54,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:42:54,985 INFO L225 Difference]: With dead ends: 205 [2020-10-13 12:42:54,985 INFO L226 Difference]: Without dead ends: 136 [2020-10-13 12:42:54,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:42:54,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-13 12:42:55,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2020-10-13 12:42:55,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-13 12:42:55,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2020-10-13 12:42:55,025 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 53 [2020-10-13 12:42:55,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:42:55,025 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2020-10-13 12:42:55,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:42:55,025 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2020-10-13 12:42:55,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-13 12:42:55,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:42:55,028 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] [2020-10-13 12:42:55,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:42:55,028 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:42:55,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:42:55,029 INFO L82 PathProgramCache]: Analyzing trace with hash 196992317, now seen corresponding path program 1 times [2020-10-13 12:42:55,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:42:55,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378138158] [2020-10-13 12:42:55,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:42:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:55,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:55,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:56,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:56,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 12:42:56,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:42:56,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1212 [2020-10-13 12:42:56,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:42:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:56,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 12:42:56,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:56,653 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:42:56,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:42:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:56,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:56,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:56,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:56,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:56,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 12:42:56,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:42:56,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:56,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:42:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:56,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:56,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:56,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:56,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:56,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:56,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:56,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:56,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:56,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:56,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:56,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:42:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:56,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:56,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:56,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:56,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:56,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:56,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:56,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:56,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:56,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:42:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:56,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:56,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:56,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:56,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:56,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:56,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:56,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:56,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:56,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:42:56,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:56,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:42:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:56,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:56,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:56,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:56,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:56,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:56,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:56,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:56,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:56,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:56,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:56,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 12:42:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:56,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:56,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:56,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:56,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:56,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:56,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:56,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:56,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:56,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:56,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:56,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:42:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:56,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:56,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:56,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:56,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:56,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:56,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:56,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:56,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:56,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:56,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:56,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:42:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:56,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:56,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:56,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:56,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:56,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:56,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:56,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:56,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:56,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:56,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:56,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:42:56,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378138158] [2020-10-13 12:42:56,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:42:56,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:42:56,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568145591] [2020-10-13 12:42:56,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:42:56,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:42:56,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:42:56,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:42:56,807 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand 4 states. [2020-10-13 12:42:57,112 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:42:58,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:42:58,324 INFO L93 Difference]: Finished difference Result 320 states and 392 transitions. [2020-10-13 12:42:58,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:42:58,325 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-10-13 12:42:58,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:42:58,329 INFO L225 Difference]: With dead ends: 320 [2020-10-13 12:42:58,329 INFO L226 Difference]: Without dead ends: 233 [2020-10-13 12:42:58,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:42:58,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-13 12:42:58,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 186. [2020-10-13 12:42:58,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-13 12:42:58,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 219 transitions. [2020-10-13 12:42:58,383 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 219 transitions. Word has length 57 [2020-10-13 12:42:58,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:42:58,384 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 219 transitions. [2020-10-13 12:42:58,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:42:58,384 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 219 transitions. [2020-10-13 12:42:58,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-13 12:42:58,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:42:58,387 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] [2020-10-13 12:42:58,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:42:58,387 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:42:58,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:42:58,388 INFO L82 PathProgramCache]: Analyzing trace with hash 925372224, now seen corresponding path program 1 times [2020-10-13 12:42:58,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:42:58,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272259536] [2020-10-13 12:42:58,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:42:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:58,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:59,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:59,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 12:42:59,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 768 [2020-10-13 12:42:59,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:42:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 12:42:59,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:59,563 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:42:59,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:42:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:59,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:59,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:59,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:59,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:59,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 12:42:59,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:59,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:59,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:59,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:42:59,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:59,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:42:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:59,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:59,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:59,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:59,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:59,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:59,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:59,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:59,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:59,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:59,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:59,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:42:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:59,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:59,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:59,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:59,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:59,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:59,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:59,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:59,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:42:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:59,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:59,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:59,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:59,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:59,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:59,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:59,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:42:59,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:59,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:42:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:59,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:59,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:59,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:59,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:59,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:59,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:59,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:59,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:59,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:59,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:42:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:59,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:59,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:59,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:42:59,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:59,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:59,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:59,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:59,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:59,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:42:59,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:59,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:42:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:59,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:59,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:59,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:59,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:59,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:59,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:59,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:42:59,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:59,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:42:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:59,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:59,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:59,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:59,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:59,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:42:59,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:59,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:42:59,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:59,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:42:59,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:59,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 12:42:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:59,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:59,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:59,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:59,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:59,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:59,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:59,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:59,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:59,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:59,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:59,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:42:59,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272259536] [2020-10-13 12:42:59,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:42:59,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:42:59,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806015926] [2020-10-13 12:42:59,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:42:59,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:42:59,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:42:59,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:42:59,753 INFO L87 Difference]: Start difference. First operand 186 states and 219 transitions. Second operand 8 states. [2020-10-13 12:43:00,147 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:43:01,490 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:43:01,800 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:43:02,078 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:43:02,322 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:43:02,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:43:02,958 INFO L93 Difference]: Finished difference Result 570 states and 742 transitions. [2020-10-13 12:43:02,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 12:43:02,958 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-13 12:43:02,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:43:02,963 INFO L225 Difference]: With dead ends: 570 [2020-10-13 12:43:02,963 INFO L226 Difference]: Without dead ends: 408 [2020-10-13 12:43:02,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:43:02,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-10-13 12:43:03,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 347. [2020-10-13 12:43:03,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-10-13 12:43:03,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 417 transitions. [2020-10-13 12:43:03,096 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 417 transitions. Word has length 63 [2020-10-13 12:43:03,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:43:03,097 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 417 transitions. [2020-10-13 12:43:03,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:43:03,097 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 417 transitions. [2020-10-13 12:43:03,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 12:43:03,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:43:03,101 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] [2020-10-13 12:43:03,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:43:03,102 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:43:03,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:43:03,102 INFO L82 PathProgramCache]: Analyzing trace with hash -910069242, now seen corresponding path program 1 times [2020-10-13 12:43:03,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:43:03,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005003140] [2020-10-13 12:43:03,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:43:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:43:03,149 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:43:03,149 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:43:03,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:43:03,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:43:03 BoogieIcfgContainer [2020-10-13 12:43:03,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:43:03,181 INFO L168 Benchmark]: Toolchain (without parser) took 18644.79 ms. Allocated memory was 146.8 MB in the beginning and 536.3 MB in the end (delta: 389.5 MB). Free memory was 101.5 MB in the beginning and 462.4 MB in the end (delta: -360.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2020-10-13 12:43:03,182 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 12:43:03,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.35 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.3 MB in the beginning and 170.3 MB in the end (delta: -68.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-13 12:43:03,184 INFO L168 Benchmark]: Boogie Preprocessor took 124.08 ms. Allocated memory is still 203.9 MB. Free memory was 170.3 MB in the beginning and 165.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-10-13 12:43:03,185 INFO L168 Benchmark]: RCFGBuilder took 1193.80 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 165.8 MB in the beginning and 194.4 MB in the end (delta: -28.6 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-10-13 12:43:03,186 INFO L168 Benchmark]: TraceAbstraction took 16692.02 ms. Allocated memory was 234.9 MB in the beginning and 536.3 MB in the end (delta: 301.5 MB). Free memory was 194.4 MB in the beginning and 462.4 MB in the end (delta: -268.0 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2020-10-13 12:43:03,190 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 630.35 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.3 MB in the beginning and 170.3 MB in the end (delta: -68.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.08 ms. Allocated memory is still 203.9 MB. Free memory was 170.3 MB in the beginning and 165.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1193.80 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 165.8 MB in the beginning and 194.4 MB in the end (delta: -28.6 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16692.02 ms. Allocated memory was 234.9 MB in the beginning and 536.3 MB in the end (delta: 301.5 MB). Free memory was 194.4 MB in the beginning and 462.4 MB in the end (delta: -268.0 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; [L405] FCALL select_helpers() [L406] FCALL select_features() [L407] CALL, EXPR valid_product() [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); [L407] RET, EXPR valid_product() [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) [L411] FCALL setup() [L412] CALL runTest() [L391] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) [L93] CALL stopSystem() [L276] COND FALSE !(\read(pumpRunning)) [L283] systemActive = 0 [L93] RET stopSystem() [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND FALSE !(\read(systemActive)) [L143] CALL __utac_acc__Specification3_spec__1() [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L297] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L297] RET, EXPR isMethaneLevelCritical() [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L303] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L303] RET, EXPR getWaterLevel() [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L307] CALL, EXPR isPumpRunning() [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L307] RET, EXPR isPumpRunning() [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) [L313] CALL __automaton_fail() [L556] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 451 SDtfs, 544 SDslu, 228 SDs, 0 SdLazy, 1140 SolverSat, 300 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 165 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 60956 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...