/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 05:17:01,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 05:17:01,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 05:17:01,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 05:17:01,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 05:17:01,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 05:17:01,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 05:17:01,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 05:17:01,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 05:17:01,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 05:17:01,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 05:17:01,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 05:17:01,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 05:17:01,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 05:17:01,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 05:17:01,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 05:17:01,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 05:17:01,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 05:17:01,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 05:17:01,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 05:17:01,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 05:17:01,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 05:17:01,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 05:17:01,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 05:17:01,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 05:17:01,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 05:17:01,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 05:17:01,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 05:17:01,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 05:17:01,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 05:17:01,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 05:17:01,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 05:17:01,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 05:17:01,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 05:17:01,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 05:17:01,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 05:17:01,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 05:17:01,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 05:17:01,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 05:17:01,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 05:17:01,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 05:17:01,676 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 05:17:01,698 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 05:17:01,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 05:17:01,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 05:17:01,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 05:17:01,700 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 05:17:01,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 05:17:01,700 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 05:17:01,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 05:17:01,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 05:17:01,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 05:17:01,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 05:17:01,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 05:17:01,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 05:17:01,702 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 05:17:01,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 05:17:01,702 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 05:17:01,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 05:17:01,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 05:17:01,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 05:17:01,703 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 05:17:01,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 05:17:01,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:17:01,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 05:17:01,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 05:17:01,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 05:17:01,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 05:17:01,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 05:17:01,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 05:17:01,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 05:17:01,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 05:17:02,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 05:17:02,066 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 05:17:02,070 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 05:17:02,073 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 05:17:02,073 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 05:17:02,074 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c [2020-10-14 05:17:02,146 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/20a936835/5ad3e35f269f4ed3a16d6e284ef4b97d/FLAG3b2ec0a20 [2020-10-14 05:17:02,625 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 05:17:02,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c [2020-10-14 05:17:02,639 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/20a936835/5ad3e35f269f4ed3a16d6e284ef4b97d/FLAG3b2ec0a20 [2020-10-14 05:17:02,976 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/20a936835/5ad3e35f269f4ed3a16d6e284ef4b97d [2020-10-14 05:17:02,987 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 05:17:02,988 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 05:17:02,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 05:17:02,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 05:17:02,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 05:17:02,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:17:02" (1/1) ... [2020-10-14 05:17:03,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9c66bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:02, skipping insertion in model container [2020-10-14 05:17:03,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:17:02" (1/1) ... [2020-10-14 05:17:03,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 05:17:03,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 05:17:03,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:17:03,245 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 05:17:03,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:17:03,390 INFO L208 MainTranslator]: Completed translation [2020-10-14 05:17:03,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:03 WrapperNode [2020-10-14 05:17:03,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 05:17:03,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 05:17:03,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 05:17:03,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 05:17:03,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:03" (1/1) ... [2020-10-14 05:17:03,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:03" (1/1) ... [2020-10-14 05:17:03,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:03" (1/1) ... [2020-10-14 05:17:03,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:03" (1/1) ... [2020-10-14 05:17:03,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:03" (1/1) ... [2020-10-14 05:17:03,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:03" (1/1) ... [2020-10-14 05:17:03,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:03" (1/1) ... [2020-10-14 05:17:03,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 05:17:03,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 05:17:03,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 05:17:03,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 05:17:03,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:17:03,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 05:17:03,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 05:17:03,504 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 05:17:03,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 05:17:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 05:17:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 05:17:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 05:17:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 05:17:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-14 05:17:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 05:17:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 05:17:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 05:17:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 05:17:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 05:17:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 05:17:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 05:17:03,817 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 05:17:03,817 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 05:17:03,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:17:03 BoogieIcfgContainer [2020-10-14 05:17:03,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 05:17:03,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 05:17:03,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 05:17:03,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 05:17:03,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:17:02" (1/3) ... [2020-10-14 05:17:03,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2806c913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:17:03, skipping insertion in model container [2020-10-14 05:17:03,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:03" (2/3) ... [2020-10-14 05:17:03,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2806c913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:17:03, skipping insertion in model container [2020-10-14 05:17:03,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:17:03" (3/3) ... [2020-10-14 05:17:03,833 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+lhb-reducer.c [2020-10-14 05:17:03,843 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 05:17:03,851 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-14 05:17:03,880 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-14 05:17:03,937 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 05:17:03,938 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 05:17:03,938 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 05:17:03,938 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 05:17:03,938 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 05:17:03,938 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 05:17:03,938 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 05:17:03,939 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 05:17:03,959 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-10-14 05:17:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-14 05:17:03,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:17:03,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:17:03,967 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:17:03,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:17:03,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1405311942, now seen corresponding path program 1 times [2020-10-14 05:17:03,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:17:03,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966044702] [2020-10-14 05:17:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:17:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:04,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:04,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:04,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 05:17:04,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:04,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-14 05:17:04,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:04,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:04,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:17:04,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:17:04,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:17:04,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-14 05:17:04,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:17:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:04,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:04,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:04,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:17:04,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:04,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 05:17:04,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:04,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:04,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:17:04,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:17:04,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:17:04,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:04,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:17:04,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966044702] [2020-10-14 05:17:04,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:17:04,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 05:17:04,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140135702] [2020-10-14 05:17:04,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 05:17:04,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:17:04,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 05:17:04,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:17:04,523 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states. [2020-10-14 05:17:04,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:17:04,724 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2020-10-14 05:17:04,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 05:17:04,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-14 05:17:04,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:17:04,736 INFO L225 Difference]: With dead ends: 56 [2020-10-14 05:17:04,736 INFO L226 Difference]: Without dead ends: 34 [2020-10-14 05:17:04,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:17:04,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-14 05:17:04,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-10-14 05:17:04,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-14 05:17:04,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2020-10-14 05:17:04,780 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 13 [2020-10-14 05:17:04,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:17:04,781 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2020-10-14 05:17:04,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 05:17:04,781 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2020-10-14 05:17:04,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 05:17:04,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:17:04,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:17:04,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 05:17:04,783 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:17:04,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:17:04,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1544595869, now seen corresponding path program 1 times [2020-10-14 05:17:04,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:17:04,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468871884] [2020-10-14 05:17:04,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:17:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:04,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:04,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:04,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 05:17:04,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:04,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 05:17:04,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:04,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:04,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:17:04,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 05:17:04,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 05:17:04,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:04,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:17:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:04,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:04,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:04,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:17:04,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:04,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 05:17:04,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:04,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:17:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:17:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:17:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 05:17:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:17:04,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468871884] [2020-10-14 05:17:04,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:17:04,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:17:04,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568607297] [2020-10-14 05:17:04,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:17:04,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:17:04,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:17:04,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:17:04,989 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 5 states. [2020-10-14 05:17:05,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:17:05,127 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2020-10-14 05:17:05,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:17:05,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-14 05:17:05,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:17:05,129 INFO L225 Difference]: With dead ends: 53 [2020-10-14 05:17:05,130 INFO L226 Difference]: Without dead ends: 51 [2020-10-14 05:17:05,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:17:05,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-14 05:17:05,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 34. [2020-10-14 05:17:05,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-14 05:17:05,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2020-10-14 05:17:05,140 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 14 [2020-10-14 05:17:05,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:17:05,140 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2020-10-14 05:17:05,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:17:05,140 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2020-10-14 05:17:05,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 05:17:05,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:17:05,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:17:05,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 05:17:05,142 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:17:05,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:17:05,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1479919608, now seen corresponding path program 1 times [2020-10-14 05:17:05,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:17:05,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039656740] [2020-10-14 05:17:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:17:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:05,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:05,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:05,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:05,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 05:17:05,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:17:05,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 05:17:05,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:05,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:05,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:17:05,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:17:05,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 05:17:05,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 05:17:05,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:17:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:05,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:05,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:05,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:17:05,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:05,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:17:05,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:05,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:05,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:17:05,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:17:05,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:17:05,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:17:05,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:17:05,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039656740] [2020-10-14 05:17:05,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:17:05,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 05:17:05,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793832273] [2020-10-14 05:17:05,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 05:17:05,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:17:05,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 05:17:05,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:17:05,304 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 4 states. [2020-10-14 05:17:05,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:17:05,396 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2020-10-14 05:17:05,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 05:17:05,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-14 05:17:05,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:17:05,398 INFO L225 Difference]: With dead ends: 62 [2020-10-14 05:17:05,398 INFO L226 Difference]: Without dead ends: 41 [2020-10-14 05:17:05,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:17:05,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-14 05:17:05,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 34. [2020-10-14 05:17:05,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-14 05:17:05,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-10-14 05:17:05,406 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 14 [2020-10-14 05:17:05,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:17:05,406 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-10-14 05:17:05,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 05:17:05,407 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-10-14 05:17:05,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-14 05:17:05,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:17:05,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:17:05,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 05:17:05,408 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:17:05,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:17:05,409 INFO L82 PathProgramCache]: Analyzing trace with hash -579682531, now seen corresponding path program 1 times [2020-10-14 05:17:05,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:17:05,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392461574] [2020-10-14 05:17:05,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:17:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:05,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:05,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:05,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 05:17:05,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:05,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 05:17:05,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:05,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:05,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:17:05,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 05:17:05,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 05:17:05,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:05,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:17:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:05,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:05,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:05,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:17:05,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:05,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:17:05,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:05,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:17:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:17:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:17:05,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:05,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:17:05,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392461574] [2020-10-14 05:17:05,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:17:05,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 05:17:05,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436072282] [2020-10-14 05:17:05,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 05:17:05,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:17:05,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 05:17:05,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:17:05,528 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 4 states. [2020-10-14 05:17:05,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:17:05,624 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2020-10-14 05:17:05,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 05:17:05,625 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-14 05:17:05,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:17:05,626 INFO L225 Difference]: With dead ends: 56 [2020-10-14 05:17:05,626 INFO L226 Difference]: Without dead ends: 35 [2020-10-14 05:17:05,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:17:05,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-14 05:17:05,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2020-10-14 05:17:05,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-14 05:17:05,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2020-10-14 05:17:05,635 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 15 [2020-10-14 05:17:05,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:17:05,636 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2020-10-14 05:17:05,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 05:17:05,636 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2020-10-14 05:17:05,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 05:17:05,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:17:05,637 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] [2020-10-14 05:17:05,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 05:17:05,638 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:17:05,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:17:05,638 INFO L82 PathProgramCache]: Analyzing trace with hash -694850142, now seen corresponding path program 1 times [2020-10-14 05:17:05,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:17:05,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213515097] [2020-10-14 05:17:05,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:17:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:05,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:06,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:06,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 05:17:06,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:06,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-14 05:17:06,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:06,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:17:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 05:17:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 05:17:06,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:06,435 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 49 [2020-10-14 05:17:07,032 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 72 [2020-10-14 05:17:07,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:17:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:07,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:07,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:07,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:17:07,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:07,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:17:07,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:07,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:07,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:17:07,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:17:07,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:17:07,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:07,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:17:07,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [213515097] [2020-10-14 05:17:07,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:17:07,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 05:17:07,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378618014] [2020-10-14 05:17:07,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 05:17:07,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:17:07,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 05:17:07,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:17:07,080 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 7 states. [2020-10-14 05:17:07,315 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-14 05:17:07,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:17:07,388 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-10-14 05:17:07,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 05:17:07,388 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-14 05:17:07,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:17:07,389 INFO L225 Difference]: With dead ends: 34 [2020-10-14 05:17:07,389 INFO L226 Difference]: Without dead ends: 32 [2020-10-14 05:17:07,390 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:17:07,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-14 05:17:07,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-10-14 05:17:07,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-14 05:17:07,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-10-14 05:17:07,404 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 20 [2020-10-14 05:17:07,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:17:07,405 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-10-14 05:17:07,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 05:17:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-10-14 05:17:07,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-14 05:17:07,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:17:07,406 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] [2020-10-14 05:17:07,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 05:17:07,407 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:17:07,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:17:07,407 INFO L82 PathProgramCache]: Analyzing trace with hash -700328240, now seen corresponding path program 1 times [2020-10-14 05:17:07,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:17:07,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838504294] [2020-10-14 05:17:07,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:17:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:07,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:07,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:07,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:07,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 05:17:07,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:17:07,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-14 05:17:07,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:07,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:07,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:17:07,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 05:17:07,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:17:07,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:07,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:17:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:07,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:07,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:07,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:17:07,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:07,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:17:07,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:07,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:07,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:17:07,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:17:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:17:07,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:07,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:17:07,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838504294] [2020-10-14 05:17:07,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:17:07,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:17:07,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363996078] [2020-10-14 05:17:07,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:17:07,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:17:07,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:17:07,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:17:07,774 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 6 states. [2020-10-14 05:17:10,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:17:10,742 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2020-10-14 05:17:10,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:17:10,742 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-14 05:17:10,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:17:10,743 INFO L225 Difference]: With dead ends: 70 [2020-10-14 05:17:10,743 INFO L226 Difference]: Without dead ends: 52 [2020-10-14 05:17:10,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:17:10,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-14 05:17:10,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 35. [2020-10-14 05:17:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-14 05:17:10,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-10-14 05:17:10,758 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 21 [2020-10-14 05:17:10,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:17:10,758 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-10-14 05:17:10,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:17:10,758 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-10-14 05:17:10,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-14 05:17:10,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:17:10,761 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] [2020-10-14 05:17:10,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 05:17:10,761 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:17:10,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:17:10,762 INFO L82 PathProgramCache]: Analyzing trace with hash -716385589, now seen corresponding path program 1 times [2020-10-14 05:17:10,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:17:10,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2085009876] [2020-10-14 05:17:10,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:17:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:10,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:10,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:10,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 05:17:10,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:10,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 05:17:10,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:10,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:17:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-14 05:17:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 05:17:10,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:10,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:17:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:10,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:10,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:10,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:17:10,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:10,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:17:10,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:10,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:10,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:17:10,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:17:10,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:17:10,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:10,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:17:10,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2085009876] [2020-10-14 05:17:10,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:17:10,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:17:10,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5095150] [2020-10-14 05:17:10,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:17:10,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:17:10,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:17:10,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:17:10,929 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 5 states. [2020-10-14 05:17:11,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:17:11,095 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2020-10-14 05:17:11,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:17:11,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-14 05:17:11,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:17:11,097 INFO L225 Difference]: With dead ends: 55 [2020-10-14 05:17:11,097 INFO L226 Difference]: Without dead ends: 53 [2020-10-14 05:17:11,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:17:11,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-14 05:17:11,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 37. [2020-10-14 05:17:11,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-14 05:17:11,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-10-14 05:17:11,109 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 21 [2020-10-14 05:17:11,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:17:11,110 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-10-14 05:17:11,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:17:11,110 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-10-14 05:17:11,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-14 05:17:11,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:17:11,111 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] [2020-10-14 05:17:11,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 05:17:11,112 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:17:11,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:17:11,112 INFO L82 PathProgramCache]: Analyzing trace with hash -723586517, now seen corresponding path program 1 times [2020-10-14 05:17:11,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:17:11,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [145115383] [2020-10-14 05:17:11,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:17:11,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:11,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:11,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:11,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:11,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 05:17:11,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:17:11,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 05:17:11,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:11,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:11,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:17:11,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 05:17:11,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 05:17:11,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:11,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:17:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:11,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:11,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:11,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:17:11,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:11,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:17:11,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:11,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:11,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:17:11,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:17:11,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:17:11,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:11,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:17:11,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [145115383] [2020-10-14 05:17:11,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:17:11,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:17:11,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831011647] [2020-10-14 05:17:11,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:17:11,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:17:11,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:17:11,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:17:11,384 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 6 states. [2020-10-14 05:17:11,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:17:11,538 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2020-10-14 05:17:11,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:17:11,539 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-14 05:17:11,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:17:11,540 INFO L225 Difference]: With dead ends: 63 [2020-10-14 05:17:11,540 INFO L226 Difference]: Without dead ends: 43 [2020-10-14 05:17:11,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:17:11,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-14 05:17:11,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2020-10-14 05:17:11,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-14 05:17:11,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2020-10-14 05:17:11,555 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 22 [2020-10-14 05:17:11,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:17:11,557 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2020-10-14 05:17:11,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:17:11,557 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2020-10-14 05:17:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-14 05:17:11,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:17:11,558 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:17:11,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 05:17:11,559 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:17:11,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:17:11,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1464748711, now seen corresponding path program 1 times [2020-10-14 05:17:11,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:17:11,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247990988] [2020-10-14 05:17:11,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:17:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:11,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:11,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:12,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:12,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 05:17:12,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:17:12,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 577 [2020-10-14 05:17:12,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:12,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:12,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:17:12,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 05:17:12,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 05:17:12,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:14,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:17:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:14,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:14,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:14,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:17:14,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:14,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:17:14,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:14,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:14,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:17:14,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:17:14,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:17:14,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:17:14,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247990988] [2020-10-14 05:17:14,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:17:14,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 05:17:14,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612786259] [2020-10-14 05:17:14,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:17:14,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:17:14,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:17:14,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=12, Unknown=1, NotChecked=0, Total=20 [2020-10-14 05:17:14,343 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 5 states. [2020-10-14 05:17:18,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:17:18,651 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2020-10-14 05:17:18,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:17:18,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-14 05:17:18,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:17:18,652 INFO L225 Difference]: With dead ends: 47 [2020-10-14 05:17:18,652 INFO L226 Difference]: Without dead ends: 37 [2020-10-14 05:17:18,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=7, Invalid=12, Unknown=1, NotChecked=0, Total=20 [2020-10-14 05:17:18,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-14 05:17:18,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-14 05:17:18,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-14 05:17:18,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2020-10-14 05:17:18,659 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 23 [2020-10-14 05:17:18,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:17:18,659 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2020-10-14 05:17:18,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:17:18,660 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-10-14 05:17:18,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 05:17:18,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:17:18,661 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:17:18,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 05:17:18,661 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:17:18,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:17:18,662 INFO L82 PathProgramCache]: Analyzing trace with hash 706820670, now seen corresponding path program 1 times [2020-10-14 05:17:18,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:17:18,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132630363] [2020-10-14 05:17:18,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:17:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:18,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:18,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:18,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:18,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:18,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:19,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:19,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:19,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 05:17:19,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 05:17:19,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1030 [2020-10-14 05:17:19,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:19,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:19,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:17:19,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 05:17:19,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:17:19,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:19,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:17:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:19,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:19,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:19,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:17:19,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:19,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:17:19,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:19,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:19,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:17:19,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:17:19,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:17:19,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:19,804 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:17:19,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132630363] [2020-10-14 05:17:19,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:17:19,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 05:17:19,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079373059] [2020-10-14 05:17:19,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:17:19,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:17:19,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:17:19,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:17:19,806 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 6 states. [2020-10-14 05:17:22,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:17:22,016 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2020-10-14 05:17:22,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:17:22,017 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-14 05:17:22,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:17:22,018 INFO L225 Difference]: With dead ends: 53 [2020-10-14 05:17:22,018 INFO L226 Difference]: Without dead ends: 33 [2020-10-14 05:17:22,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:17:22,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-14 05:17:22,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-10-14 05:17:22,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-14 05:17:22,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-10-14 05:17:22,026 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 28 [2020-10-14 05:17:22,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:17:22,026 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-10-14 05:17:22,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:17:22,026 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-10-14 05:17:22,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-14 05:17:22,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:17:22,027 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 05:17:22,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 05:17:22,028 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:17:22,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:17:22,028 INFO L82 PathProgramCache]: Analyzing trace with hash 820152981, now seen corresponding path program 1 times [2020-10-14 05:17:22,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:17:22,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2090765553] [2020-10-14 05:17:22,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:17:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:22,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:22,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:22,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:23,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:23,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 05:17:23,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:17:23,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-10-14 05:17:23,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:23,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:23,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:17:23,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 05:17:23,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 05:17:23,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:23,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:17:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:23,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:23,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:23,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:17:23,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:23,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:17:23,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:23,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:23,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:17:23,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:17:23,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:17:23,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:17:23,171 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:17:23,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2090765553] [2020-10-14 05:17:23,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:17:23,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 05:17:23,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980558895] [2020-10-14 05:17:23,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:17:23,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:17:23,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:17:23,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:17:23,174 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2020-10-14 05:17:25,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:17:25,360 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-10-14 05:17:25,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:17:25,362 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-14 05:17:25,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:17:25,362 INFO L225 Difference]: With dead ends: 33 [2020-10-14 05:17:25,363 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 05:17:25,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:17:25,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 05:17:25,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 05:17:25,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 05:17:25,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 05:17:25,364 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2020-10-14 05:17:25,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:17:25,365 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 05:17:25,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:17:25,365 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 05:17:25,365 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 05:17:25,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 05:17:25,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 05:17:34,155 WARN L193 SmtUtils]: Spent 8.53 s on a formula simplification. DAG size of input: 119 DAG size of output: 59 [2020-10-14 05:17:34,221 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:17:34,221 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~__tmp_155_0~0 |old(~__tmp_155_0~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~__return_136~0 |old(~__return_136~0)|) (= |old(#valid)| |#valid|)) [2020-10-14 05:17:34,222 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:17:34,222 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:17:34,222 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 05:17:34,222 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 05:17:34,222 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:17:34,222 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-10-14 05:17:34,222 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-10-14 05:17:34,223 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-10-14 05:17:34,223 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-10-14 05:17:34,223 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2020-10-14 05:17:34,223 INFO L268 CegarLoopResult]: For program point L60(lines 60 86) no Hoare annotation was computed. [2020-10-14 05:17:34,223 INFO L268 CegarLoopResult]: For program point L27(lines 27 150) no Hoare annotation was computed. [2020-10-14 05:17:34,223 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 194) no Hoare annotation was computed. [2020-10-14 05:17:34,223 INFO L264 CegarLoopResult]: At program point L85(lines 60 86) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (<= 1 main_~main____CPAchecker_TMP_0~1) (<= main_~main__index2~0 (+ .cse0 99998)) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-10-14 05:17:34,223 INFO L268 CegarLoopResult]: For program point L19(lines 19 193) no Hoare annotation was computed. [2020-10-14 05:17:34,224 INFO L268 CegarLoopResult]: For program point L48(lines 48 136) no Hoare annotation was computed. [2020-10-14 05:17:34,224 INFO L264 CegarLoopResult]: At program point L77(lines 44 137) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (<= main_~main__index2~0 (+ .cse0 99999)) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-10-14 05:17:34,224 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-14 05:17:34,225 INFO L268 CegarLoopResult]: For program point L69(lines 69 78) no Hoare annotation was computed. [2020-10-14 05:17:34,225 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 107) no Hoare annotation was computed. [2020-10-14 05:17:34,225 INFO L268 CegarLoopResult]: For program point L156(lines 156 177) no Hoare annotation was computed. [2020-10-14 05:17:34,225 INFO L264 CegarLoopResult]: At program point L90(lines 58 91) the Hoare annotation is: false [2020-10-14 05:17:34,226 INFO L268 CegarLoopResult]: For program point L24(lines 24 183) no Hoare annotation was computed. [2020-10-14 05:17:34,226 INFO L264 CegarLoopResult]: At program point L144(lines 29 145) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~main__index2~0 4294967296)))) (and (<= main_~main__index2~0 (+ .cse0 99999)) (= main_~main__loop_entered~0 0) (= main_~main____CPAchecker_TMP_0~0 1) (<= (+ main_~main__index1~0 .cse0 1) (+ main_~main__index2~0 (* 4294967296 (div main_~main__index1~0 4294967296)))))) [2020-10-14 05:17:34,226 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-10-14 05:17:34,226 INFO L268 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-14 05:17:34,226 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2020-10-14 05:17:34,226 INFO L268 CegarLoopResult]: For program point L95(lines 95 130) no Hoare annotation was computed. [2020-10-14 05:17:34,226 INFO L268 CegarLoopResult]: For program point L29(lines 29 145) no Hoare annotation was computed. [2020-10-14 05:17:34,226 INFO L268 CegarLoopResult]: For program point L58(lines 58 91) no Hoare annotation was computed. [2020-10-14 05:17:34,226 INFO L264 CegarLoopResult]: At program point L149(lines 27 150) the Hoare annotation is: false [2020-10-14 05:17:34,226 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 12 194) no Hoare annotation was computed. [2020-10-14 05:17:34,227 INFO L264 CegarLoopResult]: At program point L170(lines 24 183) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~2 0)) (<= main_~main__index2~0 (+ (* 4294967296 (div (+ main_~main__index1~0 (- 1)) 4294967296)) (* 4294967296 (div (+ (* main_~main__index1~0 (- 1)) main_~main__index2~0 1) 4294967296)) 4294967294))) [2020-10-14 05:17:34,227 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-10-14 05:17:34,227 INFO L268 CegarLoopResult]: For program point L38(lines 38 137) no Hoare annotation was computed. [2020-10-14 05:17:34,227 INFO L271 CegarLoopResult]: At program point L129(lines 95 130) the Hoare annotation is: true [2020-10-14 05:17:34,227 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 40) no Hoare annotation was computed. [2020-10-14 05:17:34,227 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 194) the Hoare annotation is: (and (= ~__tmp_155_0~0 |old(~__tmp_155_0~0)|) (= |old(#valid)| |#valid|)) [2020-10-14 05:17:34,227 INFO L268 CegarLoopResult]: For program point L154(lines 154 182) no Hoare annotation was computed. [2020-10-14 05:17:34,227 INFO L268 CegarLoopResult]: For program point L55(lines 55 131) no Hoare annotation was computed. [2020-10-14 05:17:34,227 INFO L268 CegarLoopResult]: For program point L22(lines 22 188) no Hoare annotation was computed. [2020-10-14 05:17:34,228 INFO L264 CegarLoopResult]: At program point L117(lines 96 126) the Hoare annotation is: (let ((.cse8 (div main_~main__index1~0 4294967296)) (.cse7 (div main_~main__index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse7)) (.cse1 (+ main_~main__index2~0 (* 4294967296 .cse8)))) (or (and (or (<= (+ main_~main__index1~0 .cse0) .cse1) (let ((.cse6 (select |#memory_int| |main_~#main__array~0.base|))) (let ((.cse5 (select .cse6 (+ (* main_~main__index1~0 4) |main_~#main__array~0.offset| (* .cse8 (- 17179869184))))) (.cse3 (select .cse6 (+ (* main_~main__index2~0 4) |main_~#main__array~0.offset| (* .cse7 (- 17179869184)))))) (let ((.cse4 (+ .cse5 (* 4294967296 (div .cse3 4294967296)))) (.cse2 (* 4294967296 (div .cse5 4294967296)))) (and (<= (+ .cse2 .cse3) .cse4) (< .cse4 (+ .cse2 .cse3 1))))))) (<= main_~main__index2~0 (+ (* 4294967296 (div (+ main_~main__index1~0 (- 1)) 4294967296)) (* 4294967296 (div (+ (* main_~main__index1~0 (- 1)) main_~main__index2~0 1) 4294967296)) 4294967294)) (<= main_~main__index2~0 (+ .cse0 99998))) (and (not (= main_~__VERIFIER_assert__cond~2 0)) (<= (+ main_~main__index1~0 .cse0 1) .cse1))))) [2020-10-14 05:17:34,228 INFO L268 CegarLoopResult]: For program point L105(lines 105 118) no Hoare annotation was computed. [2020-10-14 05:17:34,228 INFO L268 CegarLoopResult]: For program point L163(lines 163 171) no Hoare annotation was computed. [2020-10-14 05:17:34,247 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,248 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,249 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,249 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,249 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,250 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,250 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,251 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,259 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,259 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:17:34 BoogieIcfgContainer [2020-10-14 05:17:34,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 05:17:34,274 INFO L168 Benchmark]: Toolchain (without parser) took 31285.82 ms. Allocated memory was 144.2 MB in the beginning and 332.9 MB in the end (delta: 188.7 MB). Free memory was 100.3 MB in the beginning and 98.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 190.8 MB. Max. memory is 7.1 GB. [2020-10-14 05:17:34,275 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 05:17:34,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.63 ms. Allocated memory was 144.2 MB in the beginning and 200.3 MB in the end (delta: 56.1 MB). Free memory was 99.9 MB in the beginning and 177.7 MB in the end (delta: -77.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2020-10-14 05:17:34,278 INFO L168 Benchmark]: Boogie Preprocessor took 46.11 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 175.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-14 05:17:34,278 INFO L168 Benchmark]: RCFGBuilder took 385.49 ms. Allocated memory is still 200.3 MB. Free memory was 175.7 MB in the beginning and 154.4 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-10-14 05:17:34,279 INFO L168 Benchmark]: TraceAbstraction took 30447.14 ms. Allocated memory was 200.3 MB in the beginning and 332.9 MB in the end (delta: 132.6 MB). Free memory was 153.4 MB in the beginning and 98.3 MB in the end (delta: 55.1 MB). Peak memory consumption was 187.7 MB. Max. memory is 7.1 GB. [2020-10-14 05:17:34,283 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 398.63 ms. Allocated memory was 144.2 MB in the beginning and 200.3 MB in the end (delta: 56.1 MB). Free memory was 99.9 MB in the beginning and 177.7 MB in the end (delta: -77.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.11 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 175.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 385.49 ms. Allocated memory is still 200.3 MB. Free memory was 175.7 MB in the beginning and 154.4 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30447.14 ms. Allocated memory was 200.3 MB in the beginning and 332.9 MB in the end (delta: 132.6 MB). Free memory was 153.4 MB in the beginning and 98.3 MB in the end (delta: 55.1 MB). Peak memory consumption was 187.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 107]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 165]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 71]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: !(__VERIFIER_assert__cond == 0) && main__index2 <= 4294967296 * ((main__index1 + -1) / 4294967296) + 4294967296 * ((main__index1 * -1 + main__index2 + 1) / 4294967296) + 4294967294 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant [2020-10-14 05:17:34,293 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,293 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,293 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,293 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,294 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,294 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,294 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,294 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,296 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,296 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,296 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,296 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,297 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,297 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,297 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:17:34,297 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((main__index1 + 4294967296 * (main__index2 / 4294967296) <= main__index2 + 4294967296 * (main__index1 / 4294967296) || (4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) && unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) < 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) + unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 1)) && main__index2 <= 4294967296 * ((main__index1 + -1) / 4294967296) + 4294967296 * ((main__index1 * -1 + main__index2 + 1) / 4294967296) + 4294967294) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99998) || (!(__VERIFIER_assert__cond == 0) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: (1 <= main____CPAchecker_TMP_0 && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99998) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 && main__loop_entered == 0) && main____CPAchecker_TMP_0 == 1) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.4s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 12.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 293 SDtfs, 220 SDslu, 353 SDs, 0 SdLazy, 647 SolverSat, 29 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 11.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 74 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 22 NumberOfFragments, 349 HoareAnnotationTreeSize, 12 FomulaSimplifications, 19939 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 12 FomulaSimplificationsInter, 4169 FormulaSimplificationTreeSizeReductionInter, 8.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 59616 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 10/13 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 correct! Received shutdown request...