/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:29:02,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:29:02,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:29:02,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:29:02,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:29:02,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:29:02,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:29:02,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:29:02,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:29:02,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:29:02,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:29:02,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:29:02,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:29:02,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:29:02,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:29:02,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:29:02,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:29:02,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:29:02,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:29:02,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:29:02,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:29:02,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:29:02,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:29:02,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:29:02,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:29:02,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:29:02,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:29:02,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:29:02,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:29:02,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:29:02,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:29:02,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:29:02,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:29:02,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:29:02,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:29:02,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:29:02,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:29:02,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:29:02,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:29:02,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:29:02,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:29:02,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 12:29:02,775 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:29:02,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:29:02,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:29:02,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:29:02,777 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:29:02,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:29:02,778 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:29:02,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:29:02,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:29:02,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:29:02,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:29:02,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:29:02,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:29:02,779 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:29:02,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:29:02,780 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:29:02,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:29:02,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:29:02,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:29:02,780 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:29:02,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:29:02,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:29:02,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:29:02,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:29:02,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:29:02,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:29:02,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:29:02,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:29:02,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:29:02,782 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.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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:29:03,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:29:03,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:29:03,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:29:03,305 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:29:03,306 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:29:03,308 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label04.c [2020-09-21 12:29:03,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c1d46fdc/979231aaca7d4845a6c4a32143d6f592/FLAG6417bc7c6 [2020-09-21 12:29:04,066 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:29:04,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label04.c [2020-09-21 12:29:04,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c1d46fdc/979231aaca7d4845a6c4a32143d6f592/FLAG6417bc7c6 [2020-09-21 12:29:04,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c1d46fdc/979231aaca7d4845a6c4a32143d6f592 [2020-09-21 12:29:04,284 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:29:04,291 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:29:04,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:29:04,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:29:04,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:29:04,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:29:04" (1/1) ... [2020-09-21 12:29:04,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7cadc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:29:04, skipping insertion in model container [2020-09-21 12:29:04,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:29:04" (1/1) ... [2020-09-21 12:29:04,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:29:04,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:29:05,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:29:05,055 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:29:05,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:29:05,193 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:29:05,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:29:05 WrapperNode [2020-09-21 12:29:05,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:29:05,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:29:05,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:29:05,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:29:05,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:29:05" (1/1) ... [2020-09-21 12:29:05,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:29:05" (1/1) ... [2020-09-21 12:29:05,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:29:05" (1/1) ... [2020-09-21 12:29:05,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:29:05" (1/1) ... [2020-09-21 12:29:05,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:29:05" (1/1) ... [2020-09-21 12:29:05,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:29:05" (1/1) ... [2020-09-21 12:29:05,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:29:05" (1/1) ... [2020-09-21 12:29:05,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:29:05,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:29:05,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:29:05,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:29:05,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:29:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:29:05,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:29:05,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:29:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 12:29:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:29:05,394 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 12:29:05,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:29:05,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:29:05,394 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 12:29:05,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:29:05,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:29:05,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:29:06,707 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:29:06,707 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 12:29:06,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:29:06 BoogieIcfgContainer [2020-09-21 12:29:06,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:29:06,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:29:06,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:29:06,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:29:06,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:29:04" (1/3) ... [2020-09-21 12:29:06,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f36ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:29:06, skipping insertion in model container [2020-09-21 12:29:06,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:29:05" (2/3) ... [2020-09-21 12:29:06,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f36ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:29:06, skipping insertion in model container [2020-09-21 12:29:06,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:29:06" (3/3) ... [2020-09-21 12:29:06,735 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label04.c [2020-09-21 12:29:06,749 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:29:06,762 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:29:06,788 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:29:06,832 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:29:06,833 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:29:06,833 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:29:06,834 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:29:06,834 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:29:06,834 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:29:06,834 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:29:06,834 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:29:06,867 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-09-21 12:29:06,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-21 12:29:06,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:29:06,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:29:06,896 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:29:06,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:29:06,905 INFO L82 PathProgramCache]: Analyzing trace with hash 116556406, now seen corresponding path program 1 times [2020-09-21 12:29:06,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:29:06,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048336566] [2020-09-21 12:29:06,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:29:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:07,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:07,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:08,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:08,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-21 12:29:08,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:29:08,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1021 [2020-09-21 12:29:08,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:08,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:29:08,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:29:08,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-21 12:29:08,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-21 12:29:08,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:29:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:08,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:08,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:08,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:29:08,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:08,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:29:08,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:08,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:29:08,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:08,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:29:08,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:08,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:29:08,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048336566] [2020-09-21 12:29:08,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:29:08,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:29:08,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528370441] [2020-09-21 12:29:08,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:29:08,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:29:08,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:29:08,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:29:08,566 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 4 states. [2020-09-21 12:29:10,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:29:10,311 INFO L93 Difference]: Finished difference Result 627 states and 1073 transitions. [2020-09-21 12:29:10,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:29:10,318 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2020-09-21 12:29:10,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:29:10,360 INFO L225 Difference]: With dead ends: 627 [2020-09-21 12:29:10,361 INFO L226 Difference]: Without dead ends: 327 [2020-09-21 12:29:10,373 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 [2020-09-21 12:29:10,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-09-21 12:29:10,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2020-09-21 12:29:10,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-09-21 12:29:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 480 transitions. [2020-09-21 12:29:10,542 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 480 transitions. Word has length 112 [2020-09-21 12:29:10,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:29:10,544 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 480 transitions. [2020-09-21 12:29:10,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:29:10,544 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 480 transitions. [2020-09-21 12:29:10,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-21 12:29:10,558 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:29:10,558 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:29:10,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:29:10,560 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:29:10,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:29:10,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1329624293, now seen corresponding path program 1 times [2020-09-21 12:29:10,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:29:10,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060418762] [2020-09-21 12:29:10,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:29:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:10,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:11,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:11,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:11,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:11,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 12:29:11,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:29:11,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-21 12:29:11,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:11,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:29:11,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-21 12:29:11,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-21 12:29:11,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:29:11,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:29:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:11,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:11,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:11,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:29:11,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:11,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:29:11,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:11,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:29:11,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:29:11,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:29:11,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:29:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:11,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:11,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:11,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:29:11,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:11,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 12:29:11,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:29:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:29:11,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:12,001 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:29:12,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060418762] [2020-09-21 12:29:12,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:29:12,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 12:29:12,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121795725] [2020-09-21 12:29:12,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:29:12,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:29:12,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:29:12,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:29:12,006 INFO L87 Difference]: Start difference. First operand 319 states and 480 transitions. Second operand 6 states. [2020-09-21 12:29:13,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:29:13,456 INFO L93 Difference]: Finished difference Result 737 states and 1143 transitions. [2020-09-21 12:29:13,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:29:13,457 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2020-09-21 12:29:13,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:29:13,461 INFO L225 Difference]: With dead ends: 737 [2020-09-21 12:29:13,462 INFO L226 Difference]: Without dead ends: 327 [2020-09-21 12:29:13,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:29:13,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-09-21 12:29:13,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2020-09-21 12:29:13,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-09-21 12:29:13,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 478 transitions. [2020-09-21 12:29:13,486 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 478 transitions. Word has length 127 [2020-09-21 12:29:13,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:29:13,487 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 478 transitions. [2020-09-21 12:29:13,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:29:13,487 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 478 transitions. [2020-09-21 12:29:13,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-09-21 12:29:13,490 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:29:13,490 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:29:13,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:29:13,490 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:29:13,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:29:13,491 INFO L82 PathProgramCache]: Analyzing trace with hash 270318990, now seen corresponding path program 1 times [2020-09-21 12:29:13,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:29:13,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737089720] [2020-09-21 12:29:13,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:29:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:13,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:13,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:14,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:14,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-21 12:29:14,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:29:14,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1022 [2020-09-21 12:29:14,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:14,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:29:14,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-21 12:29:14,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-21 12:29:14,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:29:14,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:29:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:14,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:14,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:14,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:29:14,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:14,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:29:14,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:14,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:29:14,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:14,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:29:14,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:14,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:29:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:14,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:14,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:14,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 12:29:14,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:14,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 12:29:14,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:14,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:29:14,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:14,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 12:29:14,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:15,028 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:29:15,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737089720] [2020-09-21 12:29:15,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:29:15,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:29:15,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984933175] [2020-09-21 12:29:15,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:29:15,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:29:15,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:29:15,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:29:15,031 INFO L87 Difference]: Start difference. First operand 319 states and 478 transitions. Second operand 5 states. [2020-09-21 12:29:16,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:29:16,425 INFO L93 Difference]: Finished difference Result 729 states and 1130 transitions. [2020-09-21 12:29:16,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:29:16,426 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2020-09-21 12:29:16,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:29:16,430 INFO L225 Difference]: With dead ends: 729 [2020-09-21 12:29:16,430 INFO L226 Difference]: Without dead ends: 327 [2020-09-21 12:29:16,432 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 [2020-09-21 12:29:16,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-09-21 12:29:16,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2020-09-21 12:29:16,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-09-21 12:29:16,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 476 transitions. [2020-09-21 12:29:16,448 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 476 transitions. Word has length 134 [2020-09-21 12:29:16,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:29:16,449 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 476 transitions. [2020-09-21 12:29:16,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:29:16,449 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 476 transitions. [2020-09-21 12:29:16,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-21 12:29:16,451 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:29:16,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:29:16,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:29:16,452 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:29:16,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:29:16,452 INFO L82 PathProgramCache]: Analyzing trace with hash 145221638, now seen corresponding path program 1 times [2020-09-21 12:29:16,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:29:16,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778299217] [2020-09-21 12:29:16,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:29:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:16,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:16,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:17,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:17,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:17,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-09-21 12:29:17,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:29:17,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1040 [2020-09-21 12:29:17,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:29:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-21 12:29:17,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 12:29:17,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:17,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:29:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:17,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:17,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:17,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:29:17,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:17,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:29:17,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:17,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:29:17,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:17,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:29:17,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:17,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:29:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:17,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:17,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:17,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:29:17,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:17,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 12:29:17,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:17,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:29:17,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:17,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 12:29:17,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:17,743 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:29:17,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778299217] [2020-09-21 12:29:17,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:29:17,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:29:17,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062510497] [2020-09-21 12:29:17,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:29:17,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:29:17,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:29:17,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:29:17,746 INFO L87 Difference]: Start difference. First operand 319 states and 476 transitions. Second operand 5 states. [2020-09-21 12:29:18,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:29:18,930 INFO L93 Difference]: Finished difference Result 937 states and 1423 transitions. [2020-09-21 12:29:18,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:29:18,931 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2020-09-21 12:29:18,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:29:18,935 INFO L225 Difference]: With dead ends: 937 [2020-09-21 12:29:18,936 INFO L226 Difference]: Without dead ends: 624 [2020-09-21 12:29:18,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:29:18,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-09-21 12:29:18,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 472. [2020-09-21 12:29:18,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2020-09-21 12:29:18,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 648 transitions. [2020-09-21 12:29:18,960 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 648 transitions. Word has length 138 [2020-09-21 12:29:18,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:29:18,960 INFO L479 AbstractCegarLoop]: Abstraction has 472 states and 648 transitions. [2020-09-21 12:29:18,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:29:18,961 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 648 transitions. [2020-09-21 12:29:18,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-21 12:29:18,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:29:18,964 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:29:18,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:29:18,964 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:29:18,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:29:18,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1786587729, now seen corresponding path program 1 times [2020-09-21 12:29:18,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:29:18,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15143895] [2020-09-21 12:29:18,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:29:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:19,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:19,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:19,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:20,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:20,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:20,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-21 12:29:20,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:29:20,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1110 [2020-09-21 12:29:20,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:29:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-21 12:29:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-21 12:29:20,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:29:20,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:29:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:20,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:20,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:20,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:29:20,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:20,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:29:20,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:20,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:29:20,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:20,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:29:20,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:20,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:29:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:20,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:20,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:20,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:29:20,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:20,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:29:20,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:20,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:29:20,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:20,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:29:20,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:29:20,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 12:29:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:20,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:20,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:20,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 12:29:20,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:20,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 12:29:20,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:20,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:29:20,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:29:20,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:29:20,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:29:20,432 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:29:20,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15143895] [2020-09-21 12:29:20,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:29:20,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:29:20,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256073462] [2020-09-21 12:29:20,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:29:20,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:29:20,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:29:20,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:29:20,436 INFO L87 Difference]: Start difference. First operand 472 states and 648 transitions. Second operand 7 states. [2020-09-21 12:29:22,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:29:22,332 INFO L93 Difference]: Finished difference Result 1251 states and 1790 transitions. [2020-09-21 12:29:22,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:29:22,332 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2020-09-21 12:29:22,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:29:22,340 INFO L225 Difference]: With dead ends: 1251 [2020-09-21 12:29:22,340 INFO L226 Difference]: Without dead ends: 785 [2020-09-21 12:29:22,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:29:22,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2020-09-21 12:29:22,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 774. [2020-09-21 12:29:22,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 774 states. [2020-09-21 12:29:22,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1014 transitions. [2020-09-21 12:29:22,383 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1014 transitions. Word has length 151 [2020-09-21 12:29:22,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:29:22,384 INFO L479 AbstractCegarLoop]: Abstraction has 774 states and 1014 transitions. [2020-09-21 12:29:22,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:29:22,384 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1014 transitions. [2020-09-21 12:29:22,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-21 12:29:22,388 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:29:22,388 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:29:22,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:29:22,389 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:29:22,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:29:22,389 INFO L82 PathProgramCache]: Analyzing trace with hash -2093428135, now seen corresponding path program 1 times [2020-09-21 12:29:22,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:29:22,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347112955] [2020-09-21 12:29:22,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:29:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:22,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:22,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:22,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:23,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:23,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-21 12:29:23,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:29:23,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:29:23,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:23,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:29:23,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-21 12:29:23,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 12:29:23,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:23,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:29:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:23,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:23,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:23,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:29:23,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:23,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:29:23,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:23,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:29:23,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:23,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:29:23,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:23,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:29:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:23,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:23,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:23,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 12:29:23,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:23,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 12:29:23,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:29:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 12:29:23,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:23,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 12:29:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:23,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:23,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:23,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 12:29:23,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:23,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-21 12:29:23,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:29:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:29:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:29:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:23,676 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:29:23,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347112955] [2020-09-21 12:29:23,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:29:23,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:29:23,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617612847] [2020-09-21 12:29:23,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:29:23,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:29:23,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:29:23,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:29:23,678 INFO L87 Difference]: Start difference. First operand 774 states and 1014 transitions. Second operand 7 states. [2020-09-21 12:29:25,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:29:25,236 INFO L93 Difference]: Finished difference Result 1861 states and 2551 transitions. [2020-09-21 12:29:25,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:29:25,237 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 163 [2020-09-21 12:29:25,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:29:25,244 INFO L225 Difference]: With dead ends: 1861 [2020-09-21 12:29:25,244 INFO L226 Difference]: Without dead ends: 1093 [2020-09-21 12:29:25,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:29:25,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2020-09-21 12:29:25,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 784. [2020-09-21 12:29:25,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2020-09-21 12:29:25,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1040 transitions. [2020-09-21 12:29:25,281 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1040 transitions. Word has length 163 [2020-09-21 12:29:25,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:29:25,281 INFO L479 AbstractCegarLoop]: Abstraction has 784 states and 1040 transitions. [2020-09-21 12:29:25,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:29:25,282 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1040 transitions. [2020-09-21 12:29:25,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-21 12:29:25,286 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:29:25,286 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:29:25,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:29:25,287 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:29:25,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:29:25,287 INFO L82 PathProgramCache]: Analyzing trace with hash -230454988, now seen corresponding path program 1 times [2020-09-21 12:29:25,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:29:25,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135581191] [2020-09-21 12:29:25,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:29:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:25,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:25,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:25,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:26,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:26,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-21 12:29:26,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:29:26,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1026 [2020-09-21 12:29:26,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:26,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:29:26,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 12:29:26,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-21 12:29:26,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:26,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:29:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:26,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:26,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:26,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:29:26,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:26,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:29:26,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:29:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:29:26,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:26,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:29:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:26,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:26,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:26,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 12:29:26,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:26,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:29:26,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:26,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:29:26,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:26,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:29:26,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:26,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 12:29:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:26,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:26,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:26,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:29:26,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:26,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:29:26,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:26,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:29:26,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:26,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:29:26,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:26,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:29:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:26,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:26,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:26,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 12:29:26,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:26,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-21 12:29:26,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:26,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:29:26,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:29:26,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:29:26,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:26,628 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-21 12:29:26,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135581191] [2020-09-21 12:29:26,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:29:26,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:29:26,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687687197] [2020-09-21 12:29:26,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:29:26,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:29:26,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:29:26,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:29:26,632 INFO L87 Difference]: Start difference. First operand 784 states and 1040 transitions. Second operand 7 states. [2020-09-21 12:29:28,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:29:28,946 INFO L93 Difference]: Finished difference Result 2941 states and 4216 transitions. [2020-09-21 12:29:28,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:29:28,947 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-09-21 12:29:28,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:29:28,961 INFO L225 Difference]: With dead ends: 2941 [2020-09-21 12:29:28,961 INFO L226 Difference]: Without dead ends: 2006 [2020-09-21 12:29:28,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:29:28,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2020-09-21 12:29:29,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1968. [2020-09-21 12:29:29,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1968 states. [2020-09-21 12:29:29,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1968 states to 1968 states and 2467 transitions. [2020-09-21 12:29:29,039 INFO L78 Accepts]: Start accepts. Automaton has 1968 states and 2467 transitions. Word has length 171 [2020-09-21 12:29:29,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:29:29,040 INFO L479 AbstractCegarLoop]: Abstraction has 1968 states and 2467 transitions. [2020-09-21 12:29:29,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:29:29,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1968 states and 2467 transitions. [2020-09-21 12:29:29,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-21 12:29:29,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:29:29,048 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:29:29,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:29:29,048 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:29:29,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:29:29,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1098475320, now seen corresponding path program 1 times [2020-09-21 12:29:29,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:29:29,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907357999] [2020-09-21 12:29:29,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:29:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:29,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:29,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:29,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:30,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:30,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-21 12:29:30,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:29:30,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1022 [2020-09-21 12:29:30,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:30,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:29:30,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-21 12:29:30,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-21 12:29:30,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:30,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:29:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:30,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:30,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:30,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:29:30,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:30,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:29:30,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:30,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:29:30,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:30,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:29:30,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:30,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:29:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:30,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:30,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:30,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-21 12:29:30,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:30,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-21 12:29:30,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:30,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:29:30,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:30,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 12:29:30,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:29:30,341 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:29:30,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907357999] [2020-09-21 12:29:30,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:29:30,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:29:30,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158583833] [2020-09-21 12:29:30,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:29:30,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:29:30,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:29:30,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:29:30,344 INFO L87 Difference]: Start difference. First operand 1968 states and 2467 transitions. Second operand 5 states. [2020-09-21 12:29:31,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:29:31,431 INFO L93 Difference]: Finished difference Result 3352 states and 4197 transitions. [2020-09-21 12:29:31,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:29:31,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-09-21 12:29:31,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:29:31,442 INFO L225 Difference]: With dead ends: 3352 [2020-09-21 12:29:31,442 INFO L226 Difference]: Without dead ends: 1970 [2020-09-21 12:29:31,447 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 [2020-09-21 12:29:31,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2020-09-21 12:29:31,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1240. [2020-09-21 12:29:31,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1240 states. [2020-09-21 12:29:31,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1434 transitions. [2020-09-21 12:29:31,497 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1434 transitions. Word has length 170 [2020-09-21 12:29:31,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:29:31,497 INFO L479 AbstractCegarLoop]: Abstraction has 1240 states and 1434 transitions. [2020-09-21 12:29:31,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:29:31,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1434 transitions. [2020-09-21 12:29:31,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-21 12:29:31,503 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:29:31,503 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-21 12:29:31,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:29:31,504 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:29:31,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:29:31,504 INFO L82 PathProgramCache]: Analyzing trace with hash -541758210, now seen corresponding path program 1 times [2020-09-21 12:29:31,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:29:31,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846537348] [2020-09-21 12:29:31,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:29:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:31,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:31,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:31,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:32,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:32,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-21 12:29:32,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:29:32,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1036 [2020-09-21 12:29:32,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:32,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:29:32,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-21 12:29:32,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-21 12:29:32,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:29:32,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:29:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:32,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:32,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:32,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:29:32,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:32,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:29:32,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:32,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:29:32,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:32,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:29:32,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:29:32,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:29:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:32,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:32,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:32,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 12:29:32,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:32,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 12:29:32,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:29:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:29:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 12:29:32,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:29:32,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:29:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:29:32,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:29:32,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:29:32,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-21 12:29:32,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:29:32,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 12:29:32,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:29:32,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:29:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:29:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:29:32,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:29:32,943 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:29:32,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [846537348] [2020-09-21 12:29:32,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:29:32,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:29:32,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373714492] [2020-09-21 12:29:32,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:29:32,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:29:32,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:29:32,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:29:32,955 INFO L87 Difference]: Start difference. First operand 1240 states and 1434 transitions. Second operand 7 states. [2020-09-21 12:29:35,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:29:35,602 INFO L93 Difference]: Finished difference Result 4214 states and 5210 transitions. [2020-09-21 12:29:35,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:29:35,603 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-09-21 12:29:35,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:29:35,603 INFO L225 Difference]: With dead ends: 4214 [2020-09-21 12:29:35,603 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:29:35,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:29:35,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:29:35,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:29:35,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:29:35,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:29:35,615 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2020-09-21 12:29:35,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:29:35,616 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:29:35,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:29:35,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:29:35,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:29:35,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:29:35,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:29:38,033 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 118 [2020-09-21 12:29:38,595 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 118 [2020-09-21 12:29:39,183 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 63 [2020-09-21 12:29:39,543 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 40 [2020-09-21 12:29:39,853 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 40 [2020-09-21 12:29:39,860 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:29:39,861 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-09-21 12:29:39,861 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:29:39,861 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,861 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,862 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,862 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,862 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,862 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-09-21 12:29:39,862 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-09-21 12:29:39,862 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-09-21 12:29:39,863 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-09-21 12:29:39,863 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-09-21 12:29:39,863 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-09-21 12:29:39,863 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-09-21 12:29:39,863 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-09-21 12:29:39,863 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-09-21 12:29:39,864 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-09-21 12:29:39,864 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-09-21 12:29:39,864 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-09-21 12:29:39,864 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-09-21 12:29:39,864 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,864 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,864 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,864 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,865 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-09-21 12:29:39,865 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,865 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-09-21 12:29:39,865 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-09-21 12:29:39,865 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-09-21 12:29:39,865 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-09-21 12:29:39,865 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-09-21 12:29:39,865 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-09-21 12:29:39,865 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-09-21 12:29:39,865 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-09-21 12:29:39,866 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-09-21 12:29:39,866 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-09-21 12:29:39,866 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-09-21 12:29:39,866 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-09-21 12:29:39,866 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-09-21 12:29:39,866 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-09-21 12:29:39,866 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-09-21 12:29:39,866 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,867 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,867 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,867 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,867 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,867 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 490) no Hoare annotation was computed. [2020-09-21 12:29:39,867 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-09-21 12:29:39,867 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-09-21 12:29:39,868 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-09-21 12:29:39,868 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-09-21 12:29:39,868 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-09-21 12:29:39,868 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-09-21 12:29:39,868 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-09-21 12:29:39,868 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-09-21 12:29:39,868 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-09-21 12:29:39,868 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-09-21 12:29:39,869 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-09-21 12:29:39,869 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,869 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,869 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,869 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,869 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,869 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-09-21 12:29:39,869 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-09-21 12:29:39,870 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-09-21 12:29:39,870 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-09-21 12:29:39,870 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-09-21 12:29:39,870 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-09-21 12:29:39,870 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-09-21 12:29:39,870 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-09-21 12:29:39,870 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-09-21 12:29:39,871 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-09-21 12:29:39,871 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-09-21 12:29:39,871 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-09-21 12:29:39,871 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-09-21 12:29:39,871 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,871 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,871 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,871 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,872 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,872 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-09-21 12:29:39,872 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-09-21 12:29:39,872 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-09-21 12:29:39,872 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-09-21 12:29:39,872 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-09-21 12:29:39,872 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-09-21 12:29:39,872 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-09-21 12:29:39,872 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-09-21 12:29:39,873 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-09-21 12:29:39,873 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-09-21 12:29:39,873 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-09-21 12:29:39,873 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-09-21 12:29:39,873 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-09-21 12:29:39,873 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-09-21 12:29:39,873 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-09-21 12:29:39,873 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-09-21 12:29:39,873 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,874 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,874 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,874 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,874 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-09-21 12:29:39,874 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,874 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-09-21 12:29:39,874 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,874 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-09-21 12:29:39,874 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-09-21 12:29:39,875 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-09-21 12:29:39,875 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,875 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,875 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-09-21 12:29:39,875 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-09-21 12:29:39,875 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-09-21 12:29:39,875 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-09-21 12:29:39,875 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-09-21 12:29:39,876 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-09-21 12:29:39,876 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-09-21 12:29:39,876 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-09-21 12:29:39,876 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-09-21 12:29:39,876 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-09-21 12:29:39,876 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-09-21 12:29:39,876 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,876 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,876 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,877 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,877 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,877 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,877 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-09-21 12:29:39,877 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-09-21 12:29:39,877 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-09-21 12:29:39,877 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-09-21 12:29:39,877 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-09-21 12:29:39,878 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-09-21 12:29:39,878 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-09-21 12:29:39,878 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-09-21 12:29:39,878 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-09-21 12:29:39,878 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-09-21 12:29:39,878 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-09-21 12:29:39,878 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,878 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,879 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,879 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,879 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,879 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,879 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-09-21 12:29:39,879 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-09-21 12:29:39,879 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-09-21 12:29:39,879 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-09-21 12:29:39,880 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-09-21 12:29:39,880 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-09-21 12:29:39,880 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-09-21 12:29:39,880 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-09-21 12:29:39,880 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-09-21 12:29:39,880 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-09-21 12:29:39,880 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-09-21 12:29:39,881 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-09-21 12:29:39,881 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-09-21 12:29:39,881 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-09-21 12:29:39,881 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,881 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,881 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,882 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (= ~a28~0 |old(~a28~0)|)) (.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse3 (= ~a19~0 |old(~a19~0)|))) (let ((.cse5 (and .cse0 .cse1 .cse2 (= ~a25~0 |old(~a25~0)|) .cse3)) (.cse4 (not (= |old(~a11~0)| 1)))) (and (or (not (<= |old(~a25~0)| 1)) (not (<= 1 |old(~a25~0)|)) (and .cse0 .cse1 .cse2 (<= 1 ~a25~0) (<= ~a25~0 1) .cse3) .cse4) (or .cse5 (not (= 0 |old(~a11~0)|))) (or (not (<= 8 |old(~a17~0)|)) .cse5 .cse4) (or .cse5 (not (<= 10 |old(~a28~0)|)) .cse4) (or (not (= |old(~a25~0)| 1)) (not (= 7 |old(~a17~0)|)) (not (= |old(~a19~0)| 1)) (not (= 11 |old(~a28~0)|)) (and (= 7 ~a17~0) .cse2 (= ~a25~0 1) .cse3 (= ~a28~0 11)) (not (= ~a21~0 1)) (not (<= |old(~a11~0)| 0))) (or .cse5 (not (<= |old(~a28~0)| 8)) .cse4)))) [2020-09-21 12:29:39,882 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,882 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,882 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,882 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-09-21 12:29:39,882 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-09-21 12:29:39,882 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-09-21 12:29:39,883 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-09-21 12:29:39,883 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-09-21 12:29:39,883 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-09-21 12:29:39,883 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-09-21 12:29:39,883 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-09-21 12:29:39,883 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-09-21 12:29:39,883 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-09-21 12:29:39,883 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-09-21 12:29:39,884 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-09-21 12:29:39,884 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-09-21 12:29:39,884 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,884 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,884 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,884 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,884 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,885 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,885 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-09-21 12:29:39,885 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-09-21 12:29:39,885 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-09-21 12:29:39,885 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-09-21 12:29:39,885 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-09-21 12:29:39,885 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-09-21 12:29:39,885 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-09-21 12:29:39,885 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-09-21 12:29:39,886 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-09-21 12:29:39,886 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-09-21 12:29:39,886 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-09-21 12:29:39,886 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-09-21 12:29:39,886 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-09-21 12:29:39,886 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-09-21 12:29:39,886 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-09-21 12:29:39,887 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-09-21 12:29:39,887 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,887 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,887 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,887 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,887 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 12:29:39,887 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-09-21 12:29:39,888 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-09-21 12:29:39,888 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-09-21 12:29:39,888 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-09-21 12:29:39,888 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-09-21 12:29:39,888 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-09-21 12:29:39,888 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-09-21 12:29:39,888 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-09-21 12:29:39,888 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-09-21 12:29:39,889 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-09-21 12:29:39,889 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-09-21 12:29:39,889 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-09-21 12:29:39,889 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-09-21 12:29:39,889 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-09-21 12:29:39,889 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-09-21 12:29:39,889 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-09-21 12:29:39,889 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-09-21 12:29:39,889 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-09-21 12:29:39,890 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-09-21 12:29:39,890 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:29:39,890 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 8 ~a17~0) (= 7 ~a28~0) (= ~a11~0 0)) [2020-09-21 12:29:39,890 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 12:29:39,890 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:29:39,890 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= 8 |old(~a17~0)|)) (not (= 0 |old(~a11~0)|)) (and (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|)) (not (= 7 |old(~a28~0)|))) [2020-09-21 12:29:39,890 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (= ~a11~0 1))) (or (and (<= 1 ~a25~0) (<= ~a25~0 1) .cse0) (and (<= ~a28~0 8) .cse0) (and (<= ~a11~0 0) (= 7 ~a17~0) (= ~a19~0 1) (= ~a21~0 1) (= ~a25~0 1) (= ~a28~0 11)) (not (<= 8 |old(~a17~0)|)) (not (= 0 |old(~a11~0)|)) (and (<= 10 ~a28~0) .cse0) (= ~a11~0 0) (not (= 7 |old(~a28~0)|)) (and (<= 8 ~a17~0) .cse0))) [2020-09-21 12:29:39,891 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-09-21 12:29:39,891 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-09-21 12:29:39,891 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (= ~a11~0 1))) (or (and (<= 1 ~a25~0) (<= ~a25~0 1) .cse0) (and (<= ~a28~0 8) .cse0) (and (<= ~a11~0 0) (= 7 ~a17~0) (= ~a19~0 1) (= ~a21~0 1) (= ~a25~0 1) (= ~a28~0 11)) (not (<= 8 |old(~a17~0)|)) (not (= 0 |old(~a11~0)|)) (and (<= 10 ~a28~0) .cse0) (= ~a11~0 0) (not (= 7 |old(~a28~0)|)) (and (<= 8 ~a17~0) .cse0))) [2020-09-21 12:29:39,891 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-09-21 12:29:39,891 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-09-21 12:29:39,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:29:39 BoogieIcfgContainer [2020-09-21 12:29:39,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:29:39,925 INFO L168 Benchmark]: Toolchain (without parser) took 35638.50 ms. Allocated memory was 144.7 MB in the beginning and 623.4 MB in the end (delta: 478.7 MB). Free memory was 98.9 MB in the beginning and 483.4 MB in the end (delta: -384.5 MB). Peak memory consumption was 461.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:29:39,926 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 12:29:39,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 900.46 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 98.2 MB in the beginning and 168.6 MB in the end (delta: -70.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:29:39,931 INFO L168 Benchmark]: Boogie Preprocessor took 110.19 ms. Allocated memory is still 202.9 MB. Free memory was 168.6 MB in the beginning and 164.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:29:39,931 INFO L168 Benchmark]: RCFGBuilder took 1414.35 ms. Allocated memory was 202.9 MB in the beginning and 233.3 MB in the end (delta: 30.4 MB). Free memory was 163.7 MB in the beginning and 179.2 MB in the end (delta: -15.5 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. [2020-09-21 12:29:39,938 INFO L168 Benchmark]: TraceAbstraction took 33199.40 ms. Allocated memory was 233.3 MB in the beginning and 623.4 MB in the end (delta: 390.1 MB). Free memory was 179.2 MB in the beginning and 483.4 MB in the end (delta: -304.3 MB). Peak memory consumption was 452.6 MB. Max. memory is 7.1 GB. [2020-09-21 12:29:39,943 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 144.7 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 900.46 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 98.2 MB in the beginning and 168.6 MB in the end (delta: -70.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.19 ms. Allocated memory is still 202.9 MB. Free memory was 168.6 MB in the beginning and 164.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1414.35 ms. Allocated memory was 202.9 MB in the beginning and 233.3 MB in the end (delta: 30.4 MB). Free memory was 163.7 MB in the beginning and 179.2 MB in the end (delta: -15.5 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33199.40 ms. Allocated memory was 233.3 MB in the beginning and 623.4 MB in the end (delta: 390.1 MB). Free memory was 179.2 MB in the beginning and 483.4 MB in the end (delta: -304.3 MB). Peak memory consumption was 452.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 490]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((1 <= a25 && a25 <= 1) && a11 == 1) || (a28 <= 8 && a11 == 1)) || (((((a11 <= 0 && 7 == a17) && a19 == 1) && a21 == 1) && a25 == 1) && a28 == 11)) || !(8 <= \old(a17))) || !(0 == \old(a11))) || (10 <= a28 && a11 == 1)) || a11 == 0) || !(7 == \old(a28))) || (8 <= a17 && a11 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.7s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 15.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 367 SDtfs, 3544 SDslu, 460 SDs, 0 SdLazy, 8362 SolverSat, 1349 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 66 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1968occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 1264 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 82 PreInvPairs, 160 NumberOfFragments, 394 HoareAnnotationTreeSize, 82 FomulaSimplifications, 296167 FormulaSimplificationTreeSizeReduction, 2.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6123 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 1342 NumberOfCodeBlocks, 1342 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1333 ConstructedInterpolants, 0 QuantifiedInterpolants, 988348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 370/382 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...