/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 SingleStatement --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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:11:58,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:11:58,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:11:58,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:11:58,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:11:58,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:11:58,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:11:58,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:11:58,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:11:58,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:11:58,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:11:58,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:11:58,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:11:58,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:11:58,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:11:58,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:11:58,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:11:58,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:11:58,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:11:58,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:11:58,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:11:58,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:11:58,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:11:58,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:11:58,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:11:58,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:11:58,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:11:58,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:11:58,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:11:58,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:11:58,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:11:58,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:11:58,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:11:58,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:11:58,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:11:58,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:11:58,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:11:58,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:11:58,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:11:58,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:11:58,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:11:58,653 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 [2020-09-25 13:11:58,679 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:11:58,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:11:58,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:11:58,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:11:58,681 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:11:58,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:11:58,682 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:11:58,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:11:58,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:11:58,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:11:58,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:11:58,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:11:58,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:11:58,683 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:11:58,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:11:58,684 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:11:58,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:11:58,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:11:58,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:11:58,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:11:58,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:11:58,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:11:58,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:11:58,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:11:58,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:11:58,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:11:58,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:11:58,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:11:58,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:11:58,687 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 -> SingleStatement 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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:11:59,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:11:59,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:11:59,163 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:11:59,165 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:11:59,166 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:11:59,167 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-09-25 13:11:59,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2b1f62b2/5bebbe1cd7f1466abf7db28446662b70/FLAG2eec59f1a [2020-09-25 13:11:59,869 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:11:59,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-09-25 13:11:59,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2b1f62b2/5bebbe1cd7f1466abf7db28446662b70/FLAG2eec59f1a [2020-09-25 13:12:00,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2b1f62b2/5bebbe1cd7f1466abf7db28446662b70 [2020-09-25 13:12:00,129 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:12:00,134 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:12:00,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:12:00,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:12:00,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:12:00,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:12:00" (1/1) ... [2020-09-25 13:12:00,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4207e6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:00, skipping insertion in model container [2020-09-25 13:12:00,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:12:00" (1/1) ... [2020-09-25 13:12:00,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:12:00,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:12:00,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:12:00,743 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:12:00,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:12:00,936 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:12:00,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:00 WrapperNode [2020-09-25 13:12:00,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:12:00,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:12:00,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:12:00,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:12:00,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:00" (1/1) ... [2020-09-25 13:12:00,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:00" (1/1) ... [2020-09-25 13:12:01,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:00" (1/1) ... [2020-09-25 13:12:01,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:00" (1/1) ... [2020-09-25 13:12:01,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:00" (1/1) ... [2020-09-25 13:12:01,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:00" (1/1) ... [2020-09-25 13:12:01,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:00" (1/1) ... [2020-09-25 13:12:01,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:12:01,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:12:01,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:12:01,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:12:01,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:00" (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 [2020-09-25 13:12:01,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:12:01,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:12:01,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:12:01,184 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:12:01,184 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:12:01,185 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:12:01,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:12:01,185 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:12:01,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:12:01,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:12:01,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:12:01,186 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:12:01,186 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:12:01,186 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:12:01,186 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:12:01,187 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:12:01,187 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:12:01,187 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:12:01,187 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:12:01,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:12:01,188 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:12:01,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:12:01,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:12:01,188 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:12:01,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:12:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:12:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:12:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:12:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:12:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:12:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:12:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:12:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:12:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:12:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:12:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:12:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:12:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:12:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:12:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:12:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:12:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:12:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:12:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:12:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:12:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:12:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:12:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:12:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:12:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:12:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:12:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:12:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:12:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:12:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:12:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:12:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:12:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:12:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:12:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:12:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:12:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:12:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:12:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:12:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:12:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:12:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:12:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:12:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:12:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:12:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:12:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:12:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:12:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:12:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:12:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:12:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:12:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:12:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:12:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:12:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:12:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:12:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:12:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:12:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:12:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:12:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:12:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:12:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:12:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:12:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:12:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:12:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:12:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:12:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:12:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:12:02,525 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:12:02,525 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:12:02,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:12:02 BoogieIcfgContainer [2020-09-25 13:12:02,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:12:02,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:12:02,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:12:02,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:12:02,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:12:00" (1/3) ... [2020-09-25 13:12:02,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5807c7d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:12:02, skipping insertion in model container [2020-09-25 13:12:02,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:00" (2/3) ... [2020-09-25 13:12:02,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5807c7d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:12:02, skipping insertion in model container [2020-09-25 13:12:02,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:12:02" (3/3) ... [2020-09-25 13:12:02,554 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2020-09-25 13:12:02,567 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:12:02,580 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:12:02,604 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:12:02,639 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:12:02,640 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:12:02,640 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:12:02,640 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:12:02,640 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:12:02,640 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:12:02,641 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:12:02,641 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:12:02,672 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-09-25 13:12:02,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 13:12:02,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:12:02,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:12:02,695 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:12:02,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:12:02,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1368877385, now seen corresponding path program 1 times [2020-09-25 13:12:02,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:12:02,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [271078314] [2020-09-25 13:12:02,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:12:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:03,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:03,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:05,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:08,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:08,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:12:08,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:12:08,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 13:12:08,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:08,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:08,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:12:08,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:12:08,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 13:12:08,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:12:08,695 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:12:08,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:12:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:08,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:09,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:09,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:12:09,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:09,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-25 13:12:09,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:09,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:09,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:09,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:09,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:12:09,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:09,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:12:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:09,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:09,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:09,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:09,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:09,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:12:09,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:09,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:09,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:09,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:09,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:09,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:09,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:12:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:09,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:09,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:09,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:09,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:09,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:12:09,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:09,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:09,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:09,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:12:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:09,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:09,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:09,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:09,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:09,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:12:09,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:09,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:09,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:09,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:09,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:09,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:09,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:12:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:09,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:09,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:09,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:09,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:09,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:12:09,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:09,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:09,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:09,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:09,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:09,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:09,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 13:12:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:09,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:09,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:09,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:09,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:09,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:09,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:09,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:09,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:09,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:09,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:09,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:09,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 13:12:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:09,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:09,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:09,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:09,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:09,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:09,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:09,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:09,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:09,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 13:12:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:09,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:09,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:09,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:09,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:09,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:12:09,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:09,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:09,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:09,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:09,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:09,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:09,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:12:09,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [271078314] [2020-09-25 13:12:09,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:12:09,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:12:09,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610550955] [2020-09-25 13:12:09,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:12:09,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:12:09,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:12:09,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:12:09,310 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 4 states. [2020-09-25 13:12:09,921 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:12:12,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:12:12,266 INFO L93 Difference]: Finished difference Result 725 states and 874 transitions. [2020-09-25 13:12:12,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:12:12,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 13:12:12,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:12:12,292 INFO L225 Difference]: With dead ends: 725 [2020-09-25 13:12:12,293 INFO L226 Difference]: Without dead ends: 507 [2020-09-25 13:12:12,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:12:12,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-09-25 13:12:12,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 440. [2020-09-25 13:12:12,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2020-09-25 13:12:12,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 491 transitions. [2020-09-25 13:12:12,468 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 491 transitions. Word has length 153 [2020-09-25 13:12:12,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:12:12,469 INFO L479 AbstractCegarLoop]: Abstraction has 440 states and 491 transitions. [2020-09-25 13:12:12,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:12:12,469 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 491 transitions. [2020-09-25 13:12:12,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 13:12:12,476 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:12:12,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:12:12,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:12:12,477 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:12:12,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:12:12,477 INFO L82 PathProgramCache]: Analyzing trace with hash -909621944, now seen corresponding path program 1 times [2020-09-25 13:12:12,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:12:12,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783096692] [2020-09-25 13:12:12,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:12:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:12,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:12,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:13,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:15,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:16,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:17,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:17,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 13:12:17,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:12:17,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-09-25 13:12:17,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:17,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:17,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:12:17,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:12:17,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-25 13:12:17,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:12:18,018 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:12:18,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:12:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:18,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:18,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:18,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:12:18,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:18,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-25 13:12:18,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:18,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:12:18,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:18,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:12:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:18,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:18,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:18,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:18,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:18,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:18,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:18,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:18,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:18,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:18,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:18,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:18,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:12:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:18,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:18,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:18,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:18,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:18,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:12:18,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:18,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:18,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:18,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:18,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:12:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:18,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:18,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:18,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:18,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:18,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:12:18,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:18,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:18,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:18,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:18,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:18,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:18,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:12:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:18,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:18,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:18,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:18,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:18,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:18,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:18,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:18,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:18,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:18,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:18,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:18,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 13:12:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:18,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:18,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:18,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:18,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:12:18,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:12:18,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 13:12:18,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:18,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:18,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:18,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:18,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:12:18,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:18,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:12:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:18,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:18,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:18,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:12:18,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:18,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:12:18,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:18,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:18,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:18,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:18,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:12:18,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:12:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:18,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:18,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:18,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:18,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:18,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:12:18,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:18,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:18,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:18,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:18,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:18,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:18,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:12:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:18,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:18,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:18,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:18,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:18,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:12:18,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:18,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:18,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:18,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:18,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 13:12:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:18,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:18,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:18,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:18,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:18,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:12:18,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:18,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:18,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:12:18,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:18,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:18,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:18,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 13:12:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:18,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:18,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:18,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:18,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:18,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:12:18,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:18,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:18,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:18,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:18,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:18,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:18,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:12:18,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783096692] [2020-09-25 13:12:18,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:12:18,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:12:18,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870408602] [2020-09-25 13:12:18,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:12:18,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:12:18,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:12:18,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:12:18,659 INFO L87 Difference]: Start difference. First operand 440 states and 491 transitions. Second operand 9 states. [2020-09-25 13:12:19,191 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:12:20,561 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:12:21,981 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:12:22,609 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 192 [2020-09-25 13:12:23,002 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:12:23,382 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:12:23,696 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:12:24,105 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-25 13:12:24,434 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:12:25,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:12:25,774 INFO L93 Difference]: Finished difference Result 1284 states and 1596 transitions. [2020-09-25 13:12:25,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 13:12:25,776 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-09-25 13:12:25,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:12:25,793 INFO L225 Difference]: With dead ends: 1284 [2020-09-25 13:12:25,794 INFO L226 Difference]: Without dead ends: 954 [2020-09-25 13:12:25,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:12:25,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-09-25 13:12:25,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 765. [2020-09-25 13:12:25,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2020-09-25 13:12:25,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 877 transitions. [2020-09-25 13:12:25,924 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 877 transitions. Word has length 176 [2020-09-25 13:12:25,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:12:25,926 INFO L479 AbstractCegarLoop]: Abstraction has 765 states and 877 transitions. [2020-09-25 13:12:25,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:12:25,926 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 877 transitions. [2020-09-25 13:12:25,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 13:12:25,932 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:12:25,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:12:25,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:12:25,932 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:12:25,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:12:25,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1324909743, now seen corresponding path program 1 times [2020-09-25 13:12:25,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:12:25,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137730687] [2020-09-25 13:12:25,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:12:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:26,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:26,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:26,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:28,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:31,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:31,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 13:12:31,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:12:31,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 13:12:31,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:31,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:12:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 13:12:31,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 13:12:31,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:31,455 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:12:31,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:12:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:31,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:31,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:31,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:12:31,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:31,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 13:12:31,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:31,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:31,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:31,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:31,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:31,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:31,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:12:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:31,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:31,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:31,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:31,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:31,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:12:31,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:31,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:31,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:31,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:31,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:31,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:31,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:12:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:31,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:31,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:31,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:31,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:31,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:12:31,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:31,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:31,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:31,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:12:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:31,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:31,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:31,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:31,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:31,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:31,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:31,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:31,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:31,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:31,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:31,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:31,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:12:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:31,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:31,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:31,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:31,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:31,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:12:31,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:31,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:31,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:31,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:31,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:31,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 13:12:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:31,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:31,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:31,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:12:31,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:31,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:12:31,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:31,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:31,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:31,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:31,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:31,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:31,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 13:12:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:31,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:31,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:31,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:31,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:12:31,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:12:31,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:12:31,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:31,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:31,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:31,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:31,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:12:31,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:31,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:12:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:31,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:31,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:31,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:12:31,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:31,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:12:31,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:31,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:31,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:31,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:31,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 13:12:31,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:31,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:12:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:31,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:31,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:31,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:31,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:31,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:31,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:31,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:31,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:31,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 13:12:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:31,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:31,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:31,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:31,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:31,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:12:31,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:31,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:31,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:31,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:31,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:31,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 13:12:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:31,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:31,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:31,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:31,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:31,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:12:31,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:31,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:31,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:31,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:31,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:31,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 13:12:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:31,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:31,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:31,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:31,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:31,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:12:31,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:31,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:31,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:12:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:31,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:31,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:12:31,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137730687] [2020-09-25 13:12:31,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:12:31,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:12:31,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745464159] [2020-09-25 13:12:31,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:12:31,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:12:31,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:12:31,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:12:31,852 INFO L87 Difference]: Start difference. First operand 765 states and 877 transitions. Second operand 10 states. [2020-09-25 13:12:32,719 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:12:35,237 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:12:35,554 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:12:35,886 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:12:36,224 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 13:12:36,674 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 13:12:37,070 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 13:12:37,425 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 13:12:37,763 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:12:39,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:12:39,630 INFO L93 Difference]: Finished difference Result 2144 states and 2831 transitions. [2020-09-25 13:12:39,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 13:12:39,631 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2020-09-25 13:12:39,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:12:39,647 INFO L225 Difference]: With dead ends: 2144 [2020-09-25 13:12:39,647 INFO L226 Difference]: Without dead ends: 1489 [2020-09-25 13:12:39,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 13:12:39,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2020-09-25 13:12:39,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1141. [2020-09-25 13:12:39,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-09-25 13:12:39,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1358 transitions. [2020-09-25 13:12:39,836 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1358 transitions. Word has length 181 [2020-09-25 13:12:39,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:12:39,836 INFO L479 AbstractCegarLoop]: Abstraction has 1141 states and 1358 transitions. [2020-09-25 13:12:39,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:12:39,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1358 transitions. [2020-09-25 13:12:39,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 13:12:39,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:12:39,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:12:39,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:12:39,844 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:12:39,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:12:39,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1702574382, now seen corresponding path program 1 times [2020-09-25 13:12:39,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:12:39,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315003860] [2020-09-25 13:12:39,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:12:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:12:39,911 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:12:39,911 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:12:39,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:12:39,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:12:39 BoogieIcfgContainer [2020-09-25 13:12:39,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:12:39,947 INFO L168 Benchmark]: Toolchain (without parser) took 39816.18 ms. Allocated memory was 145.2 MB in the beginning and 669.0 MB in the end (delta: 523.8 MB). Free memory was 102.6 MB in the beginning and 467.3 MB in the end (delta: -364.8 MB). Peak memory consumption was 159.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:39,948 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:12:39,949 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.99 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 101.9 MB in the beginning and 174.1 MB in the end (delta: -72.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:39,950 INFO L168 Benchmark]: Boogie Preprocessor took 141.99 ms. Allocated memory is still 205.0 MB. Free memory was 174.1 MB in the beginning and 168.1 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:39,951 INFO L168 Benchmark]: RCFGBuilder took 1455.84 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 168.1 MB in the beginning and 173.0 MB in the end (delta: -4.9 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:39,952 INFO L168 Benchmark]: TraceAbstraction took 37405.24 ms. Allocated memory was 236.5 MB in the beginning and 669.0 MB in the end (delta: 432.5 MB). Free memory was 173.0 MB in the beginning and 467.3 MB in the end (delta: -294.3 MB). Peak memory consumption was 138.2 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:39,956 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 802.99 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 101.9 MB in the beginning and 174.1 MB in the end (delta: -72.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.99 ms. Allocated memory is still 205.0 MB. Free memory was 174.1 MB in the beginning and 168.1 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1455.84 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 168.1 MB in the beginning and 173.0 MB in the end (delta: -4.9 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 37405.24 ms. Allocated memory was 236.5 MB in the beginning and 669.0 MB in the end (delta: 432.5 MB). Free memory was 173.0 MB in the beginning and 467.3 MB in the end (delta: -294.3 MB). Peak memory consumption was 138.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 977]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L225] int pumpRunning = 0; [L226] int systemActive = 1; [L473] int cleanupTimeShifts = 4; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L549] int retValue_acc ; [L550] int tmp ; [L554] FCALL select_helpers() [L555] FCALL select_features() [L556] CALL, EXPR valid_product() [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); [L556] RET, EXPR valid_product() [L556] tmp = valid_product() [L558] COND TRUE \read(tmp) [L560] FCALL setup() [L561] CALL runTest() [L540] CALL test() [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] splverifierCounter = 0 [L164] COND TRUE 1 [L166] COND TRUE splverifierCounter < 4 [L172] tmp = __VERIFIER_nondet_int() [L174] COND TRUE \read(tmp) [L176] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L176] RET waterRise() [L182] tmp___0 = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp___0)) [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___2)) [L198] tmp___1 = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp___1) [L202] CALL stopSystem() [L426] COND FALSE !(\read(pumpRunning)) [L433] systemActive = 0 [L202] RET stopSystem() [L209] CALL timeShift() [L233] COND FALSE !(\read(pumpRunning)) [L240] COND FALSE !(\read(systemActive)) [L248] CALL __utac_acc__Specification3_spec__1() [L440] int tmp ; [L441] int tmp___0 ; [L442] int tmp___1 ; [L446] CALL, EXPR isMethaneLevelCritical() [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L446] RET, EXPR isMethaneLevelCritical() [L446] tmp = isMethaneLevelCritical() [L448] COND FALSE !(\read(tmp)) [L452] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L452] RET, EXPR getWaterLevel() [L452] tmp___0 = getWaterLevel() [L454] COND TRUE tmp___0 == 2 [L456] CALL, EXPR isPumpRunning() [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); [L456] RET, EXPR isPumpRunning() [L456] tmp___1 = isPumpRunning() [L458] COND FALSE !(\read(tmp___1)) [L462] CALL __automaton_fail() [L977] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 649 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 37.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 17.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 916 SDtfs, 1620 SDslu, 1620 SDs, 0 SdLazy, 3999 SolverSat, 565 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 75 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1141occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 604 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 18.0s InterpolantComputationTime, 687 NumberOfCodeBlocks, 687 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 507 ConstructedInterpolants, 0 QuantifiedInterpolants, 251350 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...