/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/eca-rers2012/Problem01_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 00:42:37,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 00:42:37,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 00:42:37,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 00:42:37,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 00:42:37,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 00:42:37,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 00:42:37,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 00:42:37,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 00:42:37,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 00:42:37,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 00:42:37,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 00:42:37,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 00:42:37,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 00:42:37,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 00:42:37,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 00:42:37,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 00:42:37,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 00:42:37,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 00:42:37,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 00:42:37,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 00:42:37,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 00:42:37,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 00:42:37,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 00:42:37,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 00:42:37,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 00:42:37,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 00:42:37,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 00:42:37,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 00:42:37,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 00:42:37,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 00:42:37,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 00:42:37,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 00:42:37,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 00:42:37,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 00:42:37,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 00:42:37,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 00:42:37,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 00:42:37,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 00:42:37,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 00:42:37,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 00:42:37,677 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 00:42:37,699 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 00:42:37,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 00:42:37,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 00:42:37,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 00:42:37,701 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 00:42:37,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 00:42:37,702 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 00:42:37,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 00:42:37,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 00:42:37,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 00:42:37,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 00:42:37,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 00:42:37,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 00:42:37,703 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 00:42:37,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 00:42:37,703 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 00:42:37,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 00:42:37,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 00:42:37,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 00:42:37,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 00:42:37,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 00:42:37,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:42:37,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 00:42:37,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 00:42:37,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 00:42:37,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 00:42:37,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 00:42:37,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 00:42:37,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 00:42:37,706 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 00:42:38,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 00:42:38,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 00:42:38,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 00:42:38,022 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 00:42:38,022 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 00:42:38,023 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label18.c [2020-10-14 00:42:38,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/472783640/9402dbf4cdd04ecf984368c14307c9be/FLAG5d14ca736 [2020-10-14 00:42:38,680 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 00:42:38,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label18.c [2020-10-14 00:42:38,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/472783640/9402dbf4cdd04ecf984368c14307c9be/FLAG5d14ca736 [2020-10-14 00:42:38,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/472783640/9402dbf4cdd04ecf984368c14307c9be [2020-10-14 00:42:38,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 00:42:38,984 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 00:42:38,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 00:42:38,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 00:42:38,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 00:42:38,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:42:38" (1/1) ... [2020-10-14 00:42:38,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd36ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:38, skipping insertion in model container [2020-10-14 00:42:38,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:42:38" (1/1) ... [2020-10-14 00:42:39,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 00:42:39,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 00:42:39,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:42:39,586 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 00:42:39,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:42:39,738 INFO L208 MainTranslator]: Completed translation [2020-10-14 00:42:39,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:39 WrapperNode [2020-10-14 00:42:39,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 00:42:39,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 00:42:39,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 00:42:39,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 00:42:39,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:39" (1/1) ... [2020-10-14 00:42:39,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:39" (1/1) ... [2020-10-14 00:42:39,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:39" (1/1) ... [2020-10-14 00:42:39,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:39" (1/1) ... [2020-10-14 00:42:39,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:39" (1/1) ... [2020-10-14 00:42:39,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:39" (1/1) ... [2020-10-14 00:42:39,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:39" (1/1) ... [2020-10-14 00:42:39,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 00:42:39,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 00:42:39,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 00:42:39,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 00:42:39,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:39" (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 00:42:39,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 00:42:39,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 00:42:39,969 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 00:42:39,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 00:42:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 00:42:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 00:42:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 00:42:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 00:42:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 00:42:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 00:42:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 00:42:41,132 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 00:42:41,133 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 00:42:41,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:42:41 BoogieIcfgContainer [2020-10-14 00:42:41,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 00:42:41,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 00:42:41,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 00:42:41,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 00:42:41,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:42:38" (1/3) ... [2020-10-14 00:42:41,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc85889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:42:41, skipping insertion in model container [2020-10-14 00:42:41,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:39" (2/3) ... [2020-10-14 00:42:41,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc85889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:42:41, skipping insertion in model container [2020-10-14 00:42:41,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:42:41" (3/3) ... [2020-10-14 00:42:41,156 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label18.c [2020-10-14 00:42:41,166 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 00:42:41,178 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 00:42:41,194 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 00:42:41,226 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 00:42:41,227 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 00:42:41,227 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 00:42:41,227 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 00:42:41,228 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 00:42:41,228 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 00:42:41,228 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 00:42:41,228 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 00:42:41,254 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-14 00:42:41,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-14 00:42:41,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:42:41,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:42:41,267 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:42:41,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:42:41,274 INFO L82 PathProgramCache]: Analyzing trace with hash 652609782, now seen corresponding path program 1 times [2020-10-14 00:42:41,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:42:41,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2147449393] [2020-10-14 00:42:41,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:42:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:41,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:41,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:43,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:43,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 00:42:43,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:42:43,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1641 [2020-10-14 00:42:43,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:43,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:43,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 00:42:43,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:42:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 00:42:43,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 00:42:43,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:42:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:43,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:43,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:43,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:42:43,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:43,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:42:43,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:43,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:43,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:42:43,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:43,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:42:43,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:43,433 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 00:42:43,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2147449393] [2020-10-14 00:42:43,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:42:43,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 00:42:43,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622340431] [2020-10-14 00:42:43,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 00:42:43,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:42:43,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 00:42:43,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 00:42:43,466 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-10-14 00:42:45,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:42:45,197 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-10-14 00:42:45,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:42:45,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2020-10-14 00:42:45,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:42:45,232 INFO L225 Difference]: With dead ends: 557 [2020-10-14 00:42:45,233 INFO L226 Difference]: Without dead ends: 286 [2020-10-14 00:42:45,241 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:42:45,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-14 00:42:45,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-10-14 00:42:45,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-14 00:42:45,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 396 transitions. [2020-10-14 00:42:45,318 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 396 transitions. Word has length 106 [2020-10-14 00:42:45,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:42:45,320 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 396 transitions. [2020-10-14 00:42:45,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 00:42:45,320 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 396 transitions. [2020-10-14 00:42:45,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-14 00:42:45,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:42:45,326 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:42:45,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 00:42:45,326 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:42:45,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:42:45,327 INFO L82 PathProgramCache]: Analyzing trace with hash -913625651, now seen corresponding path program 1 times [2020-10-14 00:42:45,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:42:45,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632907300] [2020-10-14 00:42:45,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:42:45,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:45,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:45,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:45,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:46,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:46,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 00:42:46,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:42:46,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1171 [2020-10-14 00:42:46,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:46,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:42:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 00:42:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 00:42:46,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:46,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:42:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:46,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:46,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:46,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:42:46,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:46,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:42:46,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:46,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:46,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:42:46,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:46,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:42:46,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:46,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:42:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:46,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:46,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:46,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:42:46,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:46,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 00:42:46,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:46,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:46,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:42:46,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:46,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 00:42:46,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:46,720 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:42:46,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1632907300] [2020-10-14 00:42:46,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:42:46,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:42:46,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112100175] [2020-10-14 00:42:46,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:42:46,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:42:46,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:42:46,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:42:46,725 INFO L87 Difference]: Start difference. First operand 280 states and 396 transitions. Second operand 5 states. [2020-10-14 00:42:48,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:42:48,016 INFO L93 Difference]: Finished difference Result 697 states and 1007 transitions. [2020-10-14 00:42:48,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:42:48,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-10-14 00:42:48,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:42:48,029 INFO L225 Difference]: With dead ends: 697 [2020-10-14 00:42:48,030 INFO L226 Difference]: Without dead ends: 423 [2020-10-14 00:42:48,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:42:48,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-10-14 00:42:48,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 419. [2020-10-14 00:42:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-10-14 00:42:48,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 564 transitions. [2020-10-14 00:42:48,090 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 564 transitions. Word has length 116 [2020-10-14 00:42:48,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:42:48,090 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 564 transitions. [2020-10-14 00:42:48,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:42:48,091 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 564 transitions. [2020-10-14 00:42:48,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-14 00:42:48,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:42:48,096 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:42:48,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 00:42:48,096 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:42:48,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:42:48,097 INFO L82 PathProgramCache]: Analyzing trace with hash -281272125, now seen corresponding path program 1 times [2020-10-14 00:42:48,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:42:48,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17698639] [2020-10-14 00:42:48,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:42:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:48,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:48,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:48,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:49,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:49,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 00:42:49,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:42:49,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1738 [2020-10-14 00:42:49,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:49,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:49,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:42:49,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 00:42:49,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 00:42:49,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:50,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:42:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:50,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:50,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:50,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:42:50,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:50,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:42:50,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:50,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:50,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:42:50,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:50,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:42:50,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:50,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:42:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:50,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:50,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:50,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 00:42:50,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:50,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 00:42:50,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:50,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:50,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:42:50,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:50,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 00:42:50,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:50,210 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:42:50,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17698639] [2020-10-14 00:42:50,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:42:50,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:42:50,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811624894] [2020-10-14 00:42:50,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:42:50,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:42:50,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:42:50,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:42:50,213 INFO L87 Difference]: Start difference. First operand 419 states and 564 transitions. Second operand 5 states. [2020-10-14 00:42:51,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:42:51,495 INFO L93 Difference]: Finished difference Result 1247 states and 1717 transitions. [2020-10-14 00:42:51,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:42:51,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2020-10-14 00:42:51,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:42:51,504 INFO L225 Difference]: With dead ends: 1247 [2020-10-14 00:42:51,504 INFO L226 Difference]: Without dead ends: 834 [2020-10-14 00:42:51,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:42:51,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-10-14 00:42:51,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 830. [2020-10-14 00:42:51,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2020-10-14 00:42:51,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1077 transitions. [2020-10-14 00:42:51,542 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1077 transitions. Word has length 123 [2020-10-14 00:42:51,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:42:51,543 INFO L479 AbstractCegarLoop]: Abstraction has 830 states and 1077 transitions. [2020-10-14 00:42:51,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:42:51,543 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1077 transitions. [2020-10-14 00:42:51,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-14 00:42:51,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:42:51,550 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:42:51,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 00:42:51,550 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:42:51,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:42:51,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1114916195, now seen corresponding path program 1 times [2020-10-14 00:42:51,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:42:51,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396689246] [2020-10-14 00:42:51,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:42:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:51,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:51,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:51,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:53,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:53,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 00:42:53,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:42:53,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1517 [2020-10-14 00:42:53,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:53,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:53,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:42:53,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-14 00:42:53,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 00:42:53,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:53,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:42:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:53,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:53,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:53,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:42:53,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:53,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:42:53,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:53,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:42:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:42:53,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:53,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:42:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:53,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:53,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:53,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:42:53,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:53,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 00:42:53,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:53,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:53,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:42:53,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:53,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 00:42:53,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:53,374 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:42:53,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396689246] [2020-10-14 00:42:53,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:42:53,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:42:53,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326810716] [2020-10-14 00:42:53,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:42:53,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:42:53,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:42:53,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:42:53,377 INFO L87 Difference]: Start difference. First operand 830 states and 1077 transitions. Second operand 5 states. [2020-10-14 00:42:54,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:42:54,576 INFO L93 Difference]: Finished difference Result 2343 states and 3119 transitions. [2020-10-14 00:42:54,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:42:54,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-10-14 00:42:54,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:42:54,589 INFO L225 Difference]: With dead ends: 2343 [2020-10-14 00:42:54,589 INFO L226 Difference]: Without dead ends: 1519 [2020-10-14 00:42:54,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:42:54,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2020-10-14 00:42:54,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1380. [2020-10-14 00:42:54,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1380 states. [2020-10-14 00:42:54,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1795 transitions. [2020-10-14 00:42:54,670 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1795 transitions. Word has length 140 [2020-10-14 00:42:54,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:42:54,671 INFO L479 AbstractCegarLoop]: Abstraction has 1380 states and 1795 transitions. [2020-10-14 00:42:54,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:42:54,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1795 transitions. [2020-10-14 00:42:54,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-14 00:42:54,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:42:54,679 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:42:54,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 00:42:54,679 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:42:54,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:42:54,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1881156947, now seen corresponding path program 1 times [2020-10-14 00:42:54,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:42:54,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952663069] [2020-10-14 00:42:54,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:42:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:54,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:54,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:55,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:57,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:58,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:58,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 00:42:58,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:42:58,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3990 [2020-10-14 00:42:58,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:58,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:58,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:42:58,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-14 00:42:58,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 00:42:58,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:58,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:42:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:58,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:58,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:58,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:42:58,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:58,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:42:58,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:58,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:58,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:42:58,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:58,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:42:58,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:58,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:42:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:58,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:58,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:58,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 00:42:58,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:58,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 00:42:58,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:58,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:42:58,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:58,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 00:42:58,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:59,059 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 69 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:42:59,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952663069] [2020-10-14 00:42:59,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:42:59,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:42:59,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76956101] [2020-10-14 00:42:59,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:42:59,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:42:59,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:42:59,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:42:59,061 INFO L87 Difference]: Start difference. First operand 1380 states and 1795 transitions. Second operand 5 states. [2020-10-14 00:43:00,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:00,241 INFO L93 Difference]: Finished difference Result 3574 states and 4704 transitions. [2020-10-14 00:43:00,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:43:00,242 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 179 [2020-10-14 00:43:00,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:00,243 INFO L225 Difference]: With dead ends: 3574 [2020-10-14 00:43:00,243 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 00:43:00,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:43:00,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 00:43:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 00:43:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 00:43:00,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 00:43:00,252 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-10-14 00:43:00,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:00,252 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 00:43:00,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:43:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 00:43:00,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 00:43:00,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 00:43:00,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 00:43:00,858 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 47 [2020-10-14 00:43:00,940 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 00:43:00,940 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-14 00:43:00,941 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 00:43:00,941 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-14 00:43:00,941 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-14 00:43:00,941 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,941 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,941 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,942 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,942 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,942 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,942 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-14 00:43:00,942 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-14 00:43:00,942 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-14 00:43:00,942 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-14 00:43:00,942 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-14 00:43:00,943 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-14 00:43:00,943 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-14 00:43:00,943 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-14 00:43:00,943 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-14 00:43:00,943 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-14 00:43:00,943 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,943 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,943 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,944 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,944 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,944 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,944 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-14 00:43:00,944 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-14 00:43:00,944 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-14 00:43:00,944 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-14 00:43:00,944 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-14 00:43:00,944 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-14 00:43:00,945 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-14 00:43:00,945 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-14 00:43:00,945 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-14 00:43:00,945 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-14 00:43:00,945 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-14 00:43:00,945 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 476) no Hoare annotation was computed. [2020-10-14 00:43:00,945 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-14 00:43:00,946 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-14 00:43:00,946 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-14 00:43:00,946 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-14 00:43:00,946 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,946 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,946 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,946 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,946 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,946 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-14 00:43:00,947 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-14 00:43:00,947 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-14 00:43:00,947 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-14 00:43:00,947 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-14 00:43:00,947 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-14 00:43:00,947 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-14 00:43:00,947 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-14 00:43:00,947 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-14 00:43:00,948 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,948 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,948 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,948 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,948 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,948 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-14 00:43:00,948 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-14 00:43:00,948 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-14 00:43:00,949 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-14 00:43:00,949 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-14 00:43:00,949 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-14 00:43:00,949 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-14 00:43:00,949 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-14 00:43:00,949 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-14 00:43:00,949 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-14 00:43:00,950 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-14 00:43:00,950 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-14 00:43:00,950 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-14 00:43:00,950 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,950 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,950 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,950 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,950 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,950 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-14 00:43:00,951 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-14 00:43:00,951 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-14 00:43:00,951 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-14 00:43:00,951 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-14 00:43:00,951 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-14 00:43:00,951 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-14 00:43:00,951 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-14 00:43:00,951 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-14 00:43:00,952 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,952 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,952 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,952 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,952 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,952 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,952 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-14 00:43:00,952 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,953 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-14 00:43:00,953 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-14 00:43:00,953 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-14 00:43:00,953 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-14 00:43:00,953 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-14 00:43:00,953 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-14 00:43:00,953 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-14 00:43:00,953 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-14 00:43:00,953 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-14 00:43:00,954 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-14 00:43:00,954 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-14 00:43:00,954 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-14 00:43:00,954 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-14 00:43:00,954 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,954 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,954 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,954 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,955 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,955 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-14 00:43:00,955 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-14 00:43:00,955 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-14 00:43:00,955 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-14 00:43:00,955 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-14 00:43:00,955 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-14 00:43:00,956 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-14 00:43:00,956 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-14 00:43:00,956 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,956 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,956 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,956 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,956 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,956 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-14 00:43:00,956 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-14 00:43:00,957 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-14 00:43:00,957 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-14 00:43:00,957 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-14 00:43:00,957 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-14 00:43:00,957 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-14 00:43:00,957 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-14 00:43:00,957 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-14 00:43:00,957 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-14 00:43:00,958 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse5 (= ~a8~0 |old(~a8~0)|)) (.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse4 (= ~a16~0 |old(~a16~0)|))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= 1 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a8~0 15)) (not (= 15 |old(~a8~0)|))) (or (not (= |old(~a17~0)| |old(~a20~0)|)) (and .cse1 (= ~a20~0 ~a17~0) .cse2 .cse3 .cse4 .cse5)) (or (not (= |old(~a8~0)| 13)) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a8~0 13)) (not (<= |old(~a16~0)| 4))))) [2020-10-14 00:43:00,958 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-14 00:43:00,958 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,958 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,958 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,958 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,958 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-14 00:43:00,959 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,959 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,959 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-14 00:43:00,959 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-14 00:43:00,959 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-14 00:43:00,959 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-14 00:43:00,959 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-14 00:43:00,959 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-14 00:43:00,960 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-14 00:43:00,960 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-14 00:43:00,960 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-14 00:43:00,960 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-14 00:43:00,960 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-14 00:43:00,960 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-14 00:43:00,960 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,960 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,960 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,961 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,961 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,961 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-14 00:43:00,961 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,961 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-14 00:43:00,961 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-14 00:43:00,961 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-14 00:43:00,961 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-14 00:43:00,962 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-14 00:43:00,962 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-14 00:43:00,962 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-14 00:43:00,962 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-14 00:43:00,962 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-14 00:43:00,962 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-14 00:43:00,962 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-14 00:43:00,962 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-14 00:43:00,962 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-14 00:43:00,963 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-14 00:43:00,963 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,963 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,963 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,963 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,963 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,963 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:43:00,963 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-14 00:43:00,963 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-14 00:43:00,964 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-14 00:43:00,964 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-14 00:43:00,964 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-14 00:43:00,964 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-14 00:43:00,964 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-14 00:43:00,964 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-14 00:43:00,964 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-14 00:43:00,964 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-14 00:43:00,964 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 00:43:00,965 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (= ~a20~0 ~a17~0) (= ~a8~0 15) (<= ~a20~0 1)) [2020-10-14 00:43:00,965 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 00:43:00,965 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 00:43:00,965 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a7~0 |old(~a7~0)|) (= ~a20~0 ~a17~0) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 15)) (not (= |old(~a17~0)| |old(~a20~0)|)) (not (<= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a20~0)| 1))) [2020-10-14 00:43:00,965 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-14 00:43:00,965 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (or (= ~a20~0 ~a17~0) (not (= |old(~a17~0)| |old(~a20~0)|)) (= ~a8~0 15) (not (<= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (and (<= 1 ~a20~0) (<= ~a20~0 1)) (not (<= |old(~a20~0)| 1)) (and (<= ~a16~0 4) (= ~a8~0 13))) [2020-10-14 00:43:00,965 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-14 00:43:00,966 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-14 00:43:00,966 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (= ~a20~0 ~a17~0) (not (= |old(~a17~0)| |old(~a20~0)|)) (= ~a8~0 15) (not (<= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (and (<= 1 ~a20~0) (<= ~a20~0 1)) (not (<= |old(~a20~0)| 1)) (and (<= ~a16~0 4) (= ~a8~0 13))) [2020-10-14 00:43:00,966 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-14 00:43:00,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:43:00 BoogieIcfgContainer [2020-10-14 00:43:00,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 00:43:00,991 INFO L168 Benchmark]: Toolchain (without parser) took 22007.26 ms. Allocated memory was 147.3 MB in the beginning and 617.1 MB in the end (delta: 469.8 MB). Free memory was 102.1 MB in the beginning and 222.2 MB in the end (delta: -120.0 MB). Peak memory consumption was 349.7 MB. Max. memory is 7.1 GB. [2020-10-14 00:43:00,992 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-14 00:43:00,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.34 ms. Allocated memory was 147.3 MB in the beginning and 205.5 MB in the end (delta: 58.2 MB). Free memory was 101.9 MB in the beginning and 170.4 MB in the end (delta: -68.4 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. [2020-10-14 00:43:00,994 INFO L168 Benchmark]: Boogie Preprocessor took 124.41 ms. Allocated memory is still 205.5 MB. Free memory was 170.4 MB in the beginning and 165.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-14 00:43:00,995 INFO L168 Benchmark]: RCFGBuilder took 1276.52 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 165.5 MB in the beginning and 176.0 MB in the end (delta: -10.5 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. [2020-10-14 00:43:00,996 INFO L168 Benchmark]: TraceAbstraction took 19841.31 ms. Allocated memory was 237.0 MB in the beginning and 617.1 MB in the end (delta: 380.1 MB). Free memory was 176.0 MB in the beginning and 222.2 MB in the end (delta: -46.1 MB). Peak memory consumption was 334.0 MB. Max. memory is 7.1 GB. [2020-10-14 00:43:01,000 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 753.34 ms. Allocated memory was 147.3 MB in the beginning and 205.5 MB in the end (delta: 58.2 MB). Free memory was 101.9 MB in the beginning and 170.4 MB in the end (delta: -68.4 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.41 ms. Allocated memory is still 205.5 MB. Free memory was 170.4 MB in the beginning and 165.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1276.52 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 165.5 MB in the beginning and 176.0 MB in the end (delta: -10.5 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19841.31 ms. Allocated memory was 237.0 MB in the beginning and 617.1 MB in the end (delta: 380.1 MB). Free memory was 176.0 MB in the beginning and 222.2 MB in the end (delta: -46.1 MB). Peak memory consumption was 334.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 476]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((a20 == a17 || !(\old(a17) == \old(a20))) || a8 == 15) || !(1 <= \old(a20))) || !(15 == \old(a8))) || (1 <= a20 && a20 <= 1)) || !(\old(a20) <= 1)) || (a16 <= 4 && a8 == 13) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.0s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 129 SDtfs, 1372 SDslu, 98 SDs, 0 SdLazy, 2984 SolverSat, 462 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1380occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 153 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 44 PreInvPairs, 76 NumberOfFragments, 287 HoareAnnotationTreeSize, 44 FomulaSimplifications, 7226 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1230 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 664 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 659 ConstructedInterpolants, 0 QuantifiedInterpolants, 329032 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 118/122 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...