/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=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:07:27,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:07:27,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:07:27,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:07:27,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:07:27,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:07:27,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:07:27,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:07:27,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:07:27,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:07:27,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:07:27,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:07:27,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:07:27,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:07:27,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:07:27,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:07:27,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:07:27,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:07:27,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:07:27,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:07:27,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:07:27,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:07:27,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:07:27,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:07:27,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:07:27,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:07:27,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:07:27,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:07:27,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:07:27,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:07:27,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:07:27,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:07:27,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:07:27,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:07:27,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:07:27,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:07:27,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:07:27,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:07:27,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:07:27,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:07:27,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:07:27,681 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 10:07:27,708 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:07:27,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:07:27,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:07:27,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:07:27,710 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:07:27,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:07:27,711 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:07:27,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:07:27,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:07:27,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:07:27,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:07:27,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:07:27,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:07:27,712 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:07:27,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:07:27,712 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:07:27,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:07:27,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:07:27,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:07:27,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:07:27,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:07:27,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:07:27,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:07:27,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:07:27,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:07:27,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:07:27,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:07:27,715 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:07:27,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:07:27,715 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 10:07:28,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:07:28,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:07:28,242 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:07:28,244 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:07:28,245 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:07:28,246 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label52.c [2020-09-25 10:07:28,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb1dcf8e2/81fb6a441138472881060361b26e2851/FLAGe17871e40 [2020-09-25 10:07:28,959 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:07:28,960 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label52.c [2020-09-25 10:07:28,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb1dcf8e2/81fb6a441138472881060361b26e2851/FLAGe17871e40 [2020-09-25 10:07:29,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb1dcf8e2/81fb6a441138472881060361b26e2851 [2020-09-25 10:07:29,221 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:07:29,228 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:07:29,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:07:29,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:07:29,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:07:29,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:07:29" (1/1) ... [2020-09-25 10:07:29,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f78b0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:07:29, skipping insertion in model container [2020-09-25 10:07:29,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:07:29" (1/1) ... [2020-09-25 10:07:29,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:07:29,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:07:29,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:07:29,800 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:07:30,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:07:30,028 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:07:30,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:07:30 WrapperNode [2020-09-25 10:07:30,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:07:30,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:07:30,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:07:30,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:07:30,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:07:30" (1/1) ... [2020-09-25 10:07:30,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:07:30" (1/1) ... [2020-09-25 10:07:30,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:07:30" (1/1) ... [2020-09-25 10:07:30,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:07:30" (1/1) ... [2020-09-25 10:07:30,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:07:30" (1/1) ... [2020-09-25 10:07:30,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:07:30" (1/1) ... [2020-09-25 10:07:30,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:07:30" (1/1) ... [2020-09-25 10:07:30,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:07:30,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:07:30,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:07:30,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:07:30,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:07:30" (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 10:07:30,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:07:30,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:07:30,257 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 10:07:30,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:07:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 10:07:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:07:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:07:30,260 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 10:07:30,260 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:07:30,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:07:30,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:07:31,693 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:07:31,693 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 10:07:31,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:07:31 BoogieIcfgContainer [2020-09-25 10:07:31,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:07:31,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:07:31,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:07:31,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:07:31,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:07:29" (1/3) ... [2020-09-25 10:07:31,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6b3b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:07:31, skipping insertion in model container [2020-09-25 10:07:31,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:07:30" (2/3) ... [2020-09-25 10:07:31,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6b3b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:07:31, skipping insertion in model container [2020-09-25 10:07:31,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:07:31" (3/3) ... [2020-09-25 10:07:31,715 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label52.c [2020-09-25 10:07:31,726 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:07:31,738 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:07:31,756 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:07:31,791 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:07:31,791 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:07:31,791 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:07:31,791 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:07:31,791 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:07:31,792 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:07:31,792 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:07:31,792 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:07:31,827 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states. [2020-09-25 10:07:31,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 10:07:31,851 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:07:31,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:07:31,853 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:07:31,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:07:31,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1583508727, now seen corresponding path program 1 times [2020-09-25 10:07:31,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:07:31,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424349087] [2020-09-25 10:07:31,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:07:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:07:32,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:32,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:32,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:33,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:34,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:35,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:36,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:36,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:37,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:37,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:07:37,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-25 10:07:37,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 10:07:37,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5101 [2020-09-25 10:07:37,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:07:37,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:07:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:07:37,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 10:07:37,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-09-25 10:07:37,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:07:37,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:07:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:07:37,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:37,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:07:37,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:07:37,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:07:37,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 10:07:37,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:07:37,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:07:37,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:07:37,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:07:37,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 10:07:37,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:07:37,618 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 10:07:37,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424349087] [2020-09-25 10:07:37,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:07:37,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 10:07:37,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346482180] [2020-09-25 10:07:37,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 10:07:37,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:07:37,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 10:07:37,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 10:07:37,665 INFO L87 Difference]: Start difference. First operand 525 states. Second operand 4 states. [2020-09-25 10:07:39,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:07:39,842 INFO L93 Difference]: Finished difference Result 1231 states and 1630 transitions. [2020-09-25 10:07:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:07:39,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 10:07:39,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:07:39,869 INFO L225 Difference]: With dead ends: 1231 [2020-09-25 10:07:39,869 INFO L226 Difference]: Without dead ends: 657 [2020-09-25 10:07:39,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:07:39,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2020-09-25 10:07:39,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 603. [2020-09-25 10:07:39,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-09-25 10:07:39,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 707 transitions. [2020-09-25 10:07:39,991 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 707 transitions. Word has length 154 [2020-09-25 10:07:39,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:07:39,993 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 707 transitions. [2020-09-25 10:07:39,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 10:07:39,993 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 707 transitions. [2020-09-25 10:07:40,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 10:07:40,007 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:07:40,007 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:07:40,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:07:40,008 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:07:40,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:07:40,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1605021178, now seen corresponding path program 1 times [2020-09-25 10:07:40,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:07:40,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418892153] [2020-09-25 10:07:40,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:07:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:07:40,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:40,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:40,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:40,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:40,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:41,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:42,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:42,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:42,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:44,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:45,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:07:45,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 10:07:45,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 10:07:45,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 10:07:45,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:07:45,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:07:45,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:07:45,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 10:07:45,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-09-25 10:07:45,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:07:45,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:07:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:07:45,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:45,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:07:45,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:07:45,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:07:45,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 10:07:45,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:07:45,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:07:45,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:07:45,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:07:45,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:07:45,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:07:45,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 10:07:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:07:45,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:45,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:45,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:07:45,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:07:45,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:07:45,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 10:07:45,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:07:45,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:07:45,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:07:45,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:07:45,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:07:45,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:07:45,446 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 10:07:45,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418892153] [2020-09-25 10:07:45,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:07:45,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 10:07:45,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264178978] [2020-09-25 10:07:45,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:07:45,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:07:45,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:07:45,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:07:45,451 INFO L87 Difference]: Start difference. First operand 603 states and 707 transitions. Second operand 6 states. [2020-09-25 10:07:47,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:07:47,649 INFO L93 Difference]: Finished difference Result 1561 states and 1898 transitions. [2020-09-25 10:07:47,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:07:47,650 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2020-09-25 10:07:47,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:07:47,665 INFO L225 Difference]: With dead ends: 1561 [2020-09-25 10:07:47,665 INFO L226 Difference]: Without dead ends: 982 [2020-09-25 10:07:47,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:07:47,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2020-09-25 10:07:47,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 891. [2020-09-25 10:07:47,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-09-25 10:07:47,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1085 transitions. [2020-09-25 10:07:47,713 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1085 transitions. Word has length 175 [2020-09-25 10:07:47,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:07:47,714 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1085 transitions. [2020-09-25 10:07:47,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:07:47,715 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1085 transitions. [2020-09-25 10:07:47,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 10:07:47,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:07:47,724 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:07:47,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:07:47,725 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:07:47,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:07:47,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1469093243, now seen corresponding path program 1 times [2020-09-25 10:07:47,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:07:47,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324185822] [2020-09-25 10:07:47,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:07:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:07:47,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:47,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:48,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:48,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:49,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:50,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:51,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:52,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:52,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:07:52,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 10:07:52,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 10:07:52,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 10:07:52,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:07:52,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:07:52,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 10:07:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 10:07:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 10:07:52,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:07:53,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:07:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:07:53,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:53,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:07:53,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:07:53,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:07:53,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 10:07:53,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:07:53,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:07:53,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:07:53,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:07:53,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:07:53,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:07:53,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 10:07:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:07:53,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:54,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:07:54,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:07:54,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 10:07:54,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:07:54,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-09-25 10:07:54,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:07:54,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:07:54,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:07:54,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:07:54,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:07:54,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:07:54,508 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:07:54,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324185822] [2020-09-25 10:07:54,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:07:54,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 10:07:54,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252970005] [2020-09-25 10:07:54,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 10:07:54,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:07:54,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 10:07:54,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2020-09-25 10:07:54,518 INFO L87 Difference]: Start difference. First operand 891 states and 1085 transitions. Second operand 20 states. [2020-09-25 10:07:55,515 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-09-25 10:07:55,802 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-09-25 10:07:56,242 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-09-25 10:07:56,665 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2020-09-25 10:07:57,040 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2020-09-25 10:07:58,310 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 86 [2020-09-25 10:07:59,807 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2020-09-25 10:08:00,149 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-09-25 10:08:00,416 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2020-09-25 10:08:01,548 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-09-25 10:08:02,486 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-09-25 10:08:03,177 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-09-25 10:08:04,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:08:04,096 INFO L93 Difference]: Finished difference Result 2833 states and 3695 transitions. [2020-09-25 10:08:04,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-25 10:08:04,097 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 176 [2020-09-25 10:08:04,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:08:04,108 INFO L225 Difference]: With dead ends: 2833 [2020-09-25 10:08:04,109 INFO L226 Difference]: Without dead ends: 1966 [2020-09-25 10:08:04,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=545, Invalid=1261, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 10:08:04,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2020-09-25 10:08:04,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1856. [2020-09-25 10:08:04,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1856 states. [2020-09-25 10:08:04,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1856 states to 1856 states and 2245 transitions. [2020-09-25 10:08:04,231 INFO L78 Accepts]: Start accepts. Automaton has 1856 states and 2245 transitions. Word has length 176 [2020-09-25 10:08:04,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:08:04,233 INFO L479 AbstractCegarLoop]: Abstraction has 1856 states and 2245 transitions. [2020-09-25 10:08:04,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 10:08:04,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1856 states and 2245 transitions. [2020-09-25 10:08:04,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-25 10:08:04,246 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:08:04,246 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:08:04,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:08:04,247 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:08:04,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:08:04,247 INFO L82 PathProgramCache]: Analyzing trace with hash -231794110, now seen corresponding path program 1 times [2020-09-25 10:08:04,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:08:04,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16685615] [2020-09-25 10:08:04,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:08:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:08:04,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:04,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:04,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:05,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:05,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:06,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:08,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:09,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:08:09,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 10:08:09,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 10:08:09,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 10:08:09,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:08:09,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:08:09,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:08:09,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 10:08:09,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-09-25 10:08:09,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:08:09,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:08:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:08:09,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:09,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:08:09,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:08:09,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:08:09,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 10:08:09,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:08:09,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:08:09,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:08:09,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:08:09,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 10:08:09,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:08:09,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 10:08:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:08:09,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:09,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:09,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:08:09,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:08:09,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:08:09,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 10:08:09,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:08:09,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:08:09,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:08:09,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:08:09,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 10:08:09,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:08:09,637 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 10:08:09,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16685615] [2020-09-25 10:08:09,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:08:09,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 10:08:09,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386099482] [2020-09-25 10:08:09,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:08:09,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:08:09,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:08:09,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:08:09,640 INFO L87 Difference]: Start difference. First operand 1856 states and 2245 transitions. Second operand 6 states. [2020-09-25 10:08:11,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:08:11,379 INFO L93 Difference]: Finished difference Result 4836 states and 6200 transitions. [2020-09-25 10:08:11,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 10:08:11,380 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-09-25 10:08:11,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:08:11,400 INFO L225 Difference]: With dead ends: 4836 [2020-09-25 10:08:11,401 INFO L226 Difference]: Without dead ends: 3004 [2020-09-25 10:08:11,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:08:11,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3004 states. [2020-09-25 10:08:11,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3004 to 2871. [2020-09-25 10:08:11,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2871 states. [2020-09-25 10:08:11,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2871 states to 2871 states and 3580 transitions. [2020-09-25 10:08:11,531 INFO L78 Accepts]: Start accepts. Automaton has 2871 states and 3580 transitions. Word has length 183 [2020-09-25 10:08:11,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:08:11,532 INFO L479 AbstractCegarLoop]: Abstraction has 2871 states and 3580 transitions. [2020-09-25 10:08:11,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:08:11,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states and 3580 transitions. [2020-09-25 10:08:11,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-25 10:08:11,545 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:08:11,546 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:08:11,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:08:11,546 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:08:11,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:08:11,547 INFO L82 PathProgramCache]: Analyzing trace with hash -422908273, now seen corresponding path program 1 times [2020-09-25 10:08:11,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:08:11,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654621457] [2020-09-25 10:08:11,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:08:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:08:11,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:11,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:12,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:12,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:12,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:12,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:12,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:13,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:13,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:13,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:13,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:14,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:14,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:14,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:14,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:08:16,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:08:16,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-09-25 10:08:16,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 10:08:16,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 10:08:16,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:08:16,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:08:16,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:08:16,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 10:08:16,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-25 10:08:16,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1