/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 20:54:01,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 20:54:01,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 20:54:02,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 20:54:02,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 20:54:02,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 20:54:02,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 20:54:02,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 20:54:02,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 20:54:02,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 20:54:02,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 20:54:02,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 20:54:02,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 20:54:02,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 20:54:02,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 20:54:02,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 20:54:02,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 20:54:02,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 20:54:02,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 20:54:02,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 20:54:02,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 20:54:02,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 20:54:02,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 20:54:02,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 20:54:02,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 20:54:02,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 20:54:02,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 20:54:02,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 20:54:02,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 20:54:02,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 20:54:02,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 20:54:02,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 20:54:02,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 20:54:02,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 20:54:02,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 20:54:02,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 20:54:02,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 20:54:02,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 20:54:02,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 20:54:02,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 20:54:02,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 20:54:02,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 20:54:02,138 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 20:54:02,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 20:54:02,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 20:54:02,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 20:54:02,141 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 20:54:02,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 20:54:02,141 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 20:54:02,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 20:54:02,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 20:54:02,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 20:54:02,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 20:54:02,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 20:54:02,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 20:54:02,142 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 20:54:02,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 20:54:02,143 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 20:54:02,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 20:54:02,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 20:54:02,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 20:54:02,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 20:54:02,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 20:54:02,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 20:54:02,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 20:54:02,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 20:54:02,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 20:54:02,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 20:54:02,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 20:54:02,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 20:54:02,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 20:54:02,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 20:54:02,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 20:54:02,489 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 20:54:02,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 20:54:02,497 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 20:54:02,497 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 20:54:02,498 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2020-10-14 20:54:02,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9c9e6ec0/54d72c85f3d64658b4c3f992f4ba443b/FLAG548ea7f97 [2020-10-14 20:54:03,161 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 20:54:03,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2020-10-14 20:54:03,176 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9c9e6ec0/54d72c85f3d64658b4c3f992f4ba443b/FLAG548ea7f97 [2020-10-14 20:54:03,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9c9e6ec0/54d72c85f3d64658b4c3f992f4ba443b [2020-10-14 20:54:03,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 20:54:03,411 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 20:54:03,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 20:54:03,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 20:54:03,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 20:54:03,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:54:03" (1/1) ... [2020-10-14 20:54:03,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92e95d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:03, skipping insertion in model container [2020-10-14 20:54:03,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:54:03" (1/1) ... [2020-10-14 20:54:03,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 20:54:03,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 20:54:04,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 20:54:04,049 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 20:54:04,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 20:54:04,169 INFO L208 MainTranslator]: Completed translation [2020-10-14 20:54:04,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:04 WrapperNode [2020-10-14 20:54:04,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 20:54:04,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 20:54:04,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 20:54:04,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 20:54:04,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:04" (1/1) ... [2020-10-14 20:54:04,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:04" (1/1) ... [2020-10-14 20:54:04,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:04" (1/1) ... [2020-10-14 20:54:04,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:04" (1/1) ... [2020-10-14 20:54:04,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:04" (1/1) ... [2020-10-14 20:54:04,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:04" (1/1) ... [2020-10-14 20:54:04,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:04" (1/1) ... [2020-10-14 20:54:04,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 20:54:04,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 20:54:04,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 20:54:04,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 20:54:04,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 20:54:04,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 20:54:04,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 20:54:04,358 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 20:54:04,358 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 20:54:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 20:54:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 20:54:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 20:54:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 20:54:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 20:54:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 20:54:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 20:54:05,713 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 20:54:05,714 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 20:54:05,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:54:05 BoogieIcfgContainer [2020-10-14 20:54:05,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 20:54:05,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 20:54:05,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 20:54:05,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 20:54:05,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:54:03" (1/3) ... [2020-10-14 20:54:05,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@506743ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:54:05, skipping insertion in model container [2020-10-14 20:54:05,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:54:04" (2/3) ... [2020-10-14 20:54:05,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@506743ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:54:05, skipping insertion in model container [2020-10-14 20:54:05,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:54:05" (3/3) ... [2020-10-14 20:54:05,729 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label45.c [2020-10-14 20:54:05,740 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 20:54:05,749 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 20:54:05,764 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 20:54:05,790 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 20:54:05,791 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 20:54:05,791 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 20:54:05,791 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 20:54:05,791 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 20:54:05,792 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 20:54:05,792 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 20:54:05,792 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 20:54:05,816 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-10-14 20:54:05,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-14 20:54:05,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:05,829 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] [2020-10-14 20:54:05,829 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:05,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:05,836 INFO L82 PathProgramCache]: Analyzing trace with hash 312365279, now seen corresponding path program 1 times [2020-10-14 20:54:05,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:05,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252026933] [2020-10-14 20:54:05,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:06,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:06,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:06,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 20:54:06,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:06,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-10-14 20:54:06,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:06,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:06,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:54:06,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:54:06,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 20:54:06,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 20:54:06,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:06,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:06,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:06,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:06,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:06,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 20:54:06,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:06,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:06,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:06,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:06,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:54:06,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:54:06,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252026933] [2020-10-14 20:54:06,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:54:06,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 20:54:06,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99699517] [2020-10-14 20:54:06,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 20:54:06,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:06,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 20:54:06,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 20:54:06,616 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2020-10-14 20:54:08,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:08,048 INFO L93 Difference]: Finished difference Result 581 states and 1007 transitions. [2020-10-14 20:54:08,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:54:08,050 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-14 20:54:08,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:08,066 INFO L225 Difference]: With dead ends: 581 [2020-10-14 20:54:08,067 INFO L226 Difference]: Without dead ends: 302 [2020-10-14 20:54:08,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:54:08,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-14 20:54:08,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 296. [2020-10-14 20:54:08,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-10-14 20:54:08,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 423 transitions. [2020-10-14 20:54:08,158 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 423 transitions. Word has length 44 [2020-10-14 20:54:08,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:08,158 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 423 transitions. [2020-10-14 20:54:08,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 20:54:08,159 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 423 transitions. [2020-10-14 20:54:08,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-14 20:54:08,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:08,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:08,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 20:54:08,165 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:08,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:08,165 INFO L82 PathProgramCache]: Analyzing trace with hash -281748898, now seen corresponding path program 1 times [2020-10-14 20:54:08,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:08,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103212027] [2020-10-14 20:54:08,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:08,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:08,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:08,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:09,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:09,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 20:54:09,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:54:09,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1105 [2020-10-14 20:54:09,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:09,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 20:54:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:54:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 20:54:09,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:09,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:09,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:09,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:09,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:09,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:09,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 20:54:09,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:09,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:09,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:09,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:09,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:54:09,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:09,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:09,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:09,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:09,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:09,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 20:54:09,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:54:09,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-14 20:54:09,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:09,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:09,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:09,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:09,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 20:54:09,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 20:54:09,772 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 20:54:09,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103212027] [2020-10-14 20:54:09,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:09,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 20:54:09,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045622792] [2020-10-14 20:54:09,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:09,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:09,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:09,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:09,777 INFO L87 Difference]: Start difference. First operand 296 states and 423 transitions. Second operand 7 states. [2020-10-14 20:54:11,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:11,605 INFO L93 Difference]: Finished difference Result 1192 states and 1777 transitions. [2020-10-14 20:54:11,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 20:54:11,606 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-14 20:54:11,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:11,614 INFO L225 Difference]: With dead ends: 1192 [2020-10-14 20:54:11,615 INFO L226 Difference]: Without dead ends: 902 [2020-10-14 20:54:11,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-14 20:54:11,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-10-14 20:54:11,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 888. [2020-10-14 20:54:11,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 888 states. [2020-10-14 20:54:11,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1175 transitions. [2020-10-14 20:54:11,697 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1175 transitions. Word has length 116 [2020-10-14 20:54:11,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:11,697 INFO L479 AbstractCegarLoop]: Abstraction has 888 states and 1175 transitions. [2020-10-14 20:54:11,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:11,698 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1175 transitions. [2020-10-14 20:54:11,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-14 20:54:11,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:11,702 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:11,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 20:54:11,702 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:11,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:11,703 INFO L82 PathProgramCache]: Analyzing trace with hash -681057027, now seen corresponding path program 1 times [2020-10-14 20:54:11,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:11,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700288109] [2020-10-14 20:54:11,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:11,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:12,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:12,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:12,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 20:54:12,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:54:12,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-10-14 20:54:12,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:12,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:12,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:12,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 20:54:12,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 20:54:12,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:12,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:12,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:12,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:12,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:12,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:12,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 20:54:12,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:12,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:12,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:12,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:12,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:12,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 20:54:12,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:12,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:12,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:12,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 20:54:12,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:12,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 20:54:12,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:12,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:12,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:12,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:12,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:54:12,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:12,503 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:54:12,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700288109] [2020-10-14 20:54:12,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:12,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:54:12,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742608178] [2020-10-14 20:54:12,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:54:12,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:12,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:54:12,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:54:12,507 INFO L87 Difference]: Start difference. First operand 888 states and 1175 transitions. Second operand 5 states. [2020-10-14 20:54:13,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:13,779 INFO L93 Difference]: Finished difference Result 2507 states and 3422 transitions. [2020-10-14 20:54:13,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:54:13,780 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2020-10-14 20:54:13,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:13,793 INFO L225 Difference]: With dead ends: 2507 [2020-10-14 20:54:13,793 INFO L226 Difference]: Without dead ends: 1625 [2020-10-14 20:54:13,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:54:13,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1625 states. [2020-10-14 20:54:13,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1625 to 1619. [2020-10-14 20:54:13,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1619 states. [2020-10-14 20:54:13,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2079 transitions. [2020-10-14 20:54:13,881 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2079 transitions. Word has length 123 [2020-10-14 20:54:13,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:13,883 INFO L479 AbstractCegarLoop]: Abstraction has 1619 states and 2079 transitions. [2020-10-14 20:54:13,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:54:13,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2079 transitions. [2020-10-14 20:54:13,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-14 20:54:13,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:13,904 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, 3, 3, 3, 3, 3, 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, 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] [2020-10-14 20:54:13,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 20:54:13,904 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:13,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:13,905 INFO L82 PathProgramCache]: Analyzing trace with hash 561580173, now seen corresponding path program 1 times [2020-10-14 20:54:13,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:13,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861274497] [2020-10-14 20:54:13,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:13,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:14,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:14,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:15,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:15,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-10-14 20:54:15,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:54:15,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1756 [2020-10-14 20:54:15,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:15,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:15,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:15,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 20:54:15,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 20:54:15,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 20:54:15,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:15,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:15,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:15,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:15,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:15,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:54:15,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:15,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:15,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:15,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:15,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:15,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:15,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:15,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:15,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:15,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 20:54:15,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:15,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 20:54:15,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:15,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:15,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:15,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:15,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 20:54:15,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:15,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 20:54:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:15,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:16,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:16,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 20:54:16,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:16,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 20:54:16,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:16,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:16,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:16,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:16,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 20:54:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:16,153 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 141 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:54:16,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861274497] [2020-10-14 20:54:16,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:16,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:54:16,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826328803] [2020-10-14 20:54:16,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:16,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:16,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:16,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:16,158 INFO L87 Difference]: Start difference. First operand 1619 states and 2079 transitions. Second operand 7 states. [2020-10-14 20:54:17,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:17,444 INFO L93 Difference]: Finished difference Result 3695 states and 4836 transitions. [2020-10-14 20:54:17,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 20:54:17,444 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-10-14 20:54:17,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:17,460 INFO L225 Difference]: With dead ends: 3695 [2020-10-14 20:54:17,460 INFO L226 Difference]: Without dead ends: 2082 [2020-10-14 20:54:17,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:54:17,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2020-10-14 20:54:17,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2068. [2020-10-14 20:54:17,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2068 states. [2020-10-14 20:54:17,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 2564 transitions. [2020-10-14 20:54:17,544 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 2564 transitions. Word has length 196 [2020-10-14 20:54:17,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:17,546 INFO L479 AbstractCegarLoop]: Abstraction has 2068 states and 2564 transitions. [2020-10-14 20:54:17,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:17,546 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 2564 transitions. [2020-10-14 20:54:17,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-14 20:54:17,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:17,553 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, 3, 3, 3, 3, 3, 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, 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] [2020-10-14 20:54:17,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 20:54:17,554 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:17,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:17,554 INFO L82 PathProgramCache]: Analyzing trace with hash 876056748, now seen corresponding path program 1 times [2020-10-14 20:54:17,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:17,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572336124] [2020-10-14 20:54:17,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:17,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:17,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:18,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:19,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:21,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:21,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-14 20:54:21,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 20:54:21,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4029 [2020-10-14 20:54:21,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:21,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:21,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:21,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 20:54:21,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 20:54:21,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:21,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:21,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:21,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:21,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:21,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:21,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 20:54:21,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:21,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:21,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:21,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:21,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:21,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:21,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:21,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:21,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:21,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 20:54:21,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:21,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 20:54:21,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:21,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:21,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:21,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:21,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 20:54:21,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:21,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 20:54:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:21,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:21,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:21,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 20:54:21,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:21,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 20:54:21,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:21,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:21,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 20:54:21,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:22,024 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:54:22,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572336124] [2020-10-14 20:54:22,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:22,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:54:22,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186279403] [2020-10-14 20:54:22,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:22,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:22,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:22,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:22,028 INFO L87 Difference]: Start difference. First operand 2068 states and 2564 transitions. Second operand 7 states. [2020-10-14 20:54:23,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:23,483 INFO L93 Difference]: Finished difference Result 4289 states and 5409 transitions. [2020-10-14 20:54:23,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 20:54:23,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-10-14 20:54:23,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:23,502 INFO L225 Difference]: With dead ends: 4289 [2020-10-14 20:54:23,502 INFO L226 Difference]: Without dead ends: 2227 [2020-10-14 20:54:23,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:54:23,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2020-10-14 20:54:23,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2217. [2020-10-14 20:54:23,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2217 states. [2020-10-14 20:54:23,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2217 states to 2217 states and 2786 transitions. [2020-10-14 20:54:23,573 INFO L78 Accepts]: Start accepts. Automaton has 2217 states and 2786 transitions. Word has length 203 [2020-10-14 20:54:23,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:23,574 INFO L479 AbstractCegarLoop]: Abstraction has 2217 states and 2786 transitions. [2020-10-14 20:54:23,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:23,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2217 states and 2786 transitions. [2020-10-14 20:54:23,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-14 20:54:23,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:23,579 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, 3, 3, 3, 3, 3, 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, 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] [2020-10-14 20:54:23,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 20:54:23,580 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:23,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:23,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1189061491, now seen corresponding path program 1 times [2020-10-14 20:54:23,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:23,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529439543] [2020-10-14 20:54:23,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:23,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:23,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:23,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:24,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:24,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 20:54:24,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:54:24,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 899 [2020-10-14 20:54:24,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:24,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:24,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:24,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 20:54:24,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 20:54:24,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:24,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:24,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:24,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:24,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:24,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:24,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 20:54:24,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:24,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:24,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:24,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:24,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:24,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 20:54:24,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:24,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:24,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:24,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 20:54:24,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:24,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 20:54:24,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:24,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:24,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:24,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:24,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:54:24,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:24,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 20:54:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:24,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:24,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:24,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 20:54:24,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:24,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 20:54:24,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:24,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:24,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:24,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:24,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 20:54:24,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:24,865 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:54:24,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529439543] [2020-10-14 20:54:24,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:24,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:54:24,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258022750] [2020-10-14 20:54:24,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:24,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:24,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:24,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:24,869 INFO L87 Difference]: Start difference. First operand 2217 states and 2786 transitions. Second operand 7 states. [2020-10-14 20:54:26,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:26,820 INFO L93 Difference]: Finished difference Result 4907 states and 6307 transitions. [2020-10-14 20:54:26,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 20:54:26,821 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-10-14 20:54:26,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:26,832 INFO L225 Difference]: With dead ends: 4907 [2020-10-14 20:54:26,832 INFO L226 Difference]: Without dead ends: 1820 [2020-10-14 20:54:26,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-14 20:54:26,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2020-10-14 20:54:26,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1778. [2020-10-14 20:54:26,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1778 states. [2020-10-14 20:54:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 2080 transitions. [2020-10-14 20:54:26,905 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 2080 transitions. Word has length 208 [2020-10-14 20:54:26,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:26,905 INFO L479 AbstractCegarLoop]: Abstraction has 1778 states and 2080 transitions. [2020-10-14 20:54:26,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:26,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 2080 transitions. [2020-10-14 20:54:26,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-14 20:54:26,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:26,911 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, 3, 3, 3, 3, 3, 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, 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] [2020-10-14 20:54:26,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 20:54:26,911 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:26,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:26,912 INFO L82 PathProgramCache]: Analyzing trace with hash 973289144, now seen corresponding path program 1 times [2020-10-14 20:54:26,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:26,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18260367] [2020-10-14 20:54:26,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:26,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:27,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:27,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:29,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:31,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:31,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-14 20:54:31,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 20:54:31,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4307 [2020-10-14 20:54:31,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:31,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:31,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:31,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-14 20:54:31,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 20:54:31,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:31,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:31,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:31,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:31,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:31,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:31,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 20:54:31,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:31,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:31,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:31,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:31,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:31,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:31,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:31,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 20:54:31,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:31,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 20:54:31,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:31,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:31,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:31,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:31,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 20:54:31,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:31,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 20:54:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:31,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:31,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:31,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 20:54:31,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:31,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 20:54:31,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:31,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:31,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:31,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 20:54:31,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:31,901 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:54:31,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18260367] [2020-10-14 20:54:31,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:31,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:54:31,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068399090] [2020-10-14 20:54:31,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:31,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:31,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:31,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:31,905 INFO L87 Difference]: Start difference. First operand 1778 states and 2080 transitions. Second operand 7 states. [2020-10-14 20:54:33,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:33,515 INFO L93 Difference]: Finished difference Result 4440 states and 5338 transitions. [2020-10-14 20:54:33,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 20:54:33,517 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2020-10-14 20:54:33,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:33,530 INFO L225 Difference]: With dead ends: 4440 [2020-10-14 20:54:33,530 INFO L226 Difference]: Without dead ends: 2668 [2020-10-14 20:54:33,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 20:54:33,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2020-10-14 20:54:33,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 2513. [2020-10-14 20:54:33,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2513 states. [2020-10-14 20:54:33,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2513 states to 2513 states and 2963 transitions. [2020-10-14 20:54:33,606 INFO L78 Accepts]: Start accepts. Automaton has 2513 states and 2963 transitions. Word has length 213 [2020-10-14 20:54:33,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:33,607 INFO L479 AbstractCegarLoop]: Abstraction has 2513 states and 2963 transitions. [2020-10-14 20:54:33,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:33,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2513 states and 2963 transitions. [2020-10-14 20:54:33,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-14 20:54:33,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:33,616 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, 3, 3, 3, 3, 3, 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, 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] [2020-10-14 20:54:33,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 20:54:33,617 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:33,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:33,618 INFO L82 PathProgramCache]: Analyzing trace with hash 590569913, now seen corresponding path program 1 times [2020-10-14 20:54:33,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:33,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550027161] [2020-10-14 20:54:33,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:33,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:33,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:33,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:34,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:37,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:37,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-14 20:54:37,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 20:54:37,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3801 [2020-10-14 20:54:37,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:37,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:37,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:37,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-14 20:54:37,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 20:54:37,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:37,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:37,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:37,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:37,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:37,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:37,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:54:37,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:37,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:37,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:37,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:37,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:37,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:37,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:37,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:37,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:37,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 20:54:37,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:37,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 20:54:37,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:37,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 20:54:37,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:37,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 20:54:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:37,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:37,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:37,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 20:54:37,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:37,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 20:54:37,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:37,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:37,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 20:54:37,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:37,849 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:54:37,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550027161] [2020-10-14 20:54:37,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:37,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:54:37,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067839510] [2020-10-14 20:54:37,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:37,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:37,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:37,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:37,852 INFO L87 Difference]: Start difference. First operand 2513 states and 2963 transitions. Second operand 7 states. [2020-10-14 20:54:39,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:39,724 INFO L93 Difference]: Finished difference Result 6049 states and 7264 transitions. [2020-10-14 20:54:39,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 20:54:39,725 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-10-14 20:54:39,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:39,743 INFO L225 Difference]: With dead ends: 6049 [2020-10-14 20:54:39,743 INFO L226 Difference]: Without dead ends: 3542 [2020-10-14 20:54:39,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:54:39,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3542 states. [2020-10-14 20:54:39,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3542 to 3105. [2020-10-14 20:54:39,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3105 states. [2020-10-14 20:54:39,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 3746 transitions. [2020-10-14 20:54:39,848 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 3746 transitions. Word has length 222 [2020-10-14 20:54:39,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:39,849 INFO L479 AbstractCegarLoop]: Abstraction has 3105 states and 3746 transitions. [2020-10-14 20:54:39,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:39,849 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 3746 transitions. [2020-10-14 20:54:39,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-14 20:54:39,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:39,857 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, 3, 3, 3, 3, 3, 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, 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] [2020-10-14 20:54:39,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 20:54:39,857 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:39,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:39,858 INFO L82 PathProgramCache]: Analyzing trace with hash -2020376709, now seen corresponding path program 1 times [2020-10-14 20:54:39,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:39,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685539727] [2020-10-14 20:54:39,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:39,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:40,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:40,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-14 20:54:40,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:40,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-14 20:54:40,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:40,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:40,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:40,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 20:54:40,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 20:54:40,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:40,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:40,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:40,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:40,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:40,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:40,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:54:40,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:40,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:40,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:40,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:40,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:40,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:40,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:40,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:40,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:40,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 20:54:40,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:40,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 20:54:40,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:40,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:40,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:40,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 20:54:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:40,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:40,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:40,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 20:54:40,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:40,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 20:54:40,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:40,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:40,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:40,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:40,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 20:54:40,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:54:40,562 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-14 20:54:40,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685539727] [2020-10-14 20:54:40,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:40,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:54:40,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554180030] [2020-10-14 20:54:40,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:54:40,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:40,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:54:40,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:54:40,575 INFO L87 Difference]: Start difference. First operand 3105 states and 3746 transitions. Second operand 5 states. [2020-10-14 20:54:41,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:41,644 INFO L93 Difference]: Finished difference Result 6208 states and 7500 transitions. [2020-10-14 20:54:41,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:54:41,644 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 244 [2020-10-14 20:54:41,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:41,658 INFO L225 Difference]: With dead ends: 6208 [2020-10-14 20:54:41,659 INFO L226 Difference]: Without dead ends: 3109 [2020-10-14 20:54:41,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:54:41,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2020-10-14 20:54:41,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2956. [2020-10-14 20:54:41,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2956 states. [2020-10-14 20:54:41,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2956 states to 2956 states and 3437 transitions. [2020-10-14 20:54:41,746 INFO L78 Accepts]: Start accepts. Automaton has 2956 states and 3437 transitions. Word has length 244 [2020-10-14 20:54:41,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:41,747 INFO L479 AbstractCegarLoop]: Abstraction has 2956 states and 3437 transitions. [2020-10-14 20:54:41,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:54:41,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2956 states and 3437 transitions. [2020-10-14 20:54:41,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-10-14 20:54:41,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:41,758 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:54:41,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 20:54:41,759 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:41,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:41,760 INFO L82 PathProgramCache]: Analyzing trace with hash -132698291, now seen corresponding path program 1 times [2020-10-14 20:54:41,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:41,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032692147] [2020-10-14 20:54:41,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:41,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:41,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:42,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:44,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:46,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:46,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-14 20:54:46,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 20:54:46,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4505 [2020-10-14 20:54:46,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:46,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:46,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:46,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-14 20:54:46,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 20:54:46,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:46,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:46,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:46,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:46,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:46,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:46,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:54:46,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:46,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:46,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:46,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:46,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:46,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:46,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:46,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:46,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:46,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 20:54:46,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:46,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 20:54:46,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:46,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:46,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:46,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:46,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:46,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:46,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 20:54:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:46,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:46,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:46,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 20:54:46,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:46,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 20:54:46,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:46,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:46,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:46,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:46,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 20:54:46,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:46,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-14 20:54:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:46,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:46,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:46,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 20:54:46,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:46,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 20:54:46,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:46,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:46,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:46,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:46,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 20:54:46,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:46,661 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 274 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-14 20:54:46,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032692147] [2020-10-14 20:54:46,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:46,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:54:46,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040069578] [2020-10-14 20:54:46,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:46,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:46,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:46,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:46,663 INFO L87 Difference]: Start difference. First operand 2956 states and 3437 transitions. Second operand 7 states. [2020-10-14 20:54:48,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:48,122 INFO L93 Difference]: Finished difference Result 6780 states and 7915 transitions. [2020-10-14 20:54:48,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 20:54:48,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 323 [2020-10-14 20:54:48,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:48,141 INFO L225 Difference]: With dead ends: 6780 [2020-10-14 20:54:48,141 INFO L226 Difference]: Without dead ends: 3830 [2020-10-14 20:54:48,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 20:54:48,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3830 states. [2020-10-14 20:54:48,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3830 to 3393. [2020-10-14 20:54:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3393 states. [2020-10-14 20:54:48,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3393 states to 3393 states and 3989 transitions. [2020-10-14 20:54:48,240 INFO L78 Accepts]: Start accepts. Automaton has 3393 states and 3989 transitions. Word has length 323 [2020-10-14 20:54:48,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:48,241 INFO L479 AbstractCegarLoop]: Abstraction has 3393 states and 3989 transitions. [2020-10-14 20:54:48,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:48,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3393 states and 3989 transitions. [2020-10-14 20:54:48,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-10-14 20:54:48,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:48,253 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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] [2020-10-14 20:54:48,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 20:54:48,254 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:48,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:48,254 INFO L82 PathProgramCache]: Analyzing trace with hash -499997420, now seen corresponding path program 1 times [2020-10-14 20:54:48,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:48,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747113230] [2020-10-14 20:54:48,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:48,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:48,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:48,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:50,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:53,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:53,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 374 [2020-10-14 20:54:53,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 20:54:53,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 20:54:53,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:53,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 246 [2020-10-14 20:54:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 20:54:53,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:53,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:53,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:53,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:53,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:53,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:53,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:54:53,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:53,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:53,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:53,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:53,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:53,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:53,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:53,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:53,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:53,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 20:54:53,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:53,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 20:54:53,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:53,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:53,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:53,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:53,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:53,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:53,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 20:54:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:53,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:53,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:53,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 20:54:53,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:53,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 20:54:53,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:53,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 20:54:53,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:53,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-14 20:54:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:53,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:53,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:53,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 20:54:53,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:53,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 20:54:53,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:53,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:53,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:53,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:53,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 20:54:53,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:53,759 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 274 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-14 20:54:53,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747113230] [2020-10-14 20:54:53,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:53,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:54:53,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247311997] [2020-10-14 20:54:53,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:53,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:53,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:53,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:53,762 INFO L87 Difference]: Start difference. First operand 3393 states and 3989 transitions. Second operand 7 states. [2020-10-14 20:54:55,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:55,198 INFO L93 Difference]: Finished difference Result 7799 states and 9217 transitions. [2020-10-14 20:54:55,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 20:54:55,201 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 360 [2020-10-14 20:54:55,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:55,220 INFO L225 Difference]: With dead ends: 7799 [2020-10-14 20:54:55,220 INFO L226 Difference]: Without dead ends: 4412 [2020-10-14 20:54:55,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:54:55,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4412 states. [2020-10-14 20:54:55,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4412 to 3826. [2020-10-14 20:54:55,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3826 states. [2020-10-14 20:54:55,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 4536 transitions. [2020-10-14 20:54:55,326 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 4536 transitions. Word has length 360 [2020-10-14 20:54:55,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:55,327 INFO L479 AbstractCegarLoop]: Abstraction has 3826 states and 4536 transitions. [2020-10-14 20:54:55,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:55,327 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 4536 transitions. [2020-10-14 20:54:55,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-14 20:54:55,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:55,341 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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] [2020-10-14 20:54:55,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 20:54:55,342 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:55,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:55,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1741846410, now seen corresponding path program 1 times [2020-10-14 20:54:55,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:55,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524762003] [2020-10-14 20:54:55,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:55,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:55,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:56,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:56,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:57,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:57,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 380 [2020-10-14 20:54:57,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 20:54:57,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1867 [2020-10-14 20:54:57,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:57,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:57,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:54:57,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 20:54:57,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-14 20:54:57,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:57,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:54:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:57,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:57,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:57,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:54:57,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:57,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:54:57,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:57,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:54:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:54:57,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:57,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:54:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:57,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:57,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:57,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 20:54:57,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:57,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 20:54:57,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:57,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:57,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:57,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:57,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 20:54:57,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:57,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 20:54:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:57,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:57,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:57,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:57,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 20:54:57,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:54:57,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 20:54:57,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:57,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:57,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:54:57,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:54:57,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 20:54:57,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:57,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 20:54:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:57,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:54:57,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:54:57,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 20:54:57,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:54:57,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 20:54:57,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:54:57,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:54:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:54:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:54:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-14 20:54:57,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:54:57,730 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 305 proven. 4 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-14 20:54:57,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524762003] [2020-10-14 20:54:57,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:54:57,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:54:57,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106333676] [2020-10-14 20:54:57,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:54:57,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:54:57,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:54:57,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:54:57,732 INFO L87 Difference]: Start difference. First operand 3826 states and 4536 transitions. Second operand 7 states. [2020-10-14 20:54:59,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:54:59,614 INFO L93 Difference]: Finished difference Result 8346 states and 10163 transitions. [2020-10-14 20:54:59,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 20:54:59,619 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 366 [2020-10-14 20:54:59,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:54:59,649 INFO L225 Difference]: With dead ends: 8346 [2020-10-14 20:54:59,649 INFO L226 Difference]: Without dead ends: 4526 [2020-10-14 20:54:59,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:54:59,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4526 states. [2020-10-14 20:54:59,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4526 to 4520. [2020-10-14 20:54:59,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4520 states. [2020-10-14 20:54:59,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4520 states to 4520 states and 5428 transitions. [2020-10-14 20:54:59,777 INFO L78 Accepts]: Start accepts. Automaton has 4520 states and 5428 transitions. Word has length 366 [2020-10-14 20:54:59,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:54:59,778 INFO L479 AbstractCegarLoop]: Abstraction has 4520 states and 5428 transitions. [2020-10-14 20:54:59,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:54:59,778 INFO L276 IsEmpty]: Start isEmpty. Operand 4520 states and 5428 transitions. [2020-10-14 20:54:59,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2020-10-14 20:54:59,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:54:59,800 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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] [2020-10-14 20:54:59,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 20:54:59,800 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:54:59,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:54:59,801 INFO L82 PathProgramCache]: Analyzing trace with hash 205974794, now seen corresponding path program 1 times [2020-10-14 20:54:59,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:54:59,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233380232] [2020-10-14 20:54:59,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:54:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:54:59,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:00,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:00,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:00,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 398 [2020-10-14 20:55:00,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:55:00,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-10-14 20:55:00,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:00,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:55:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-14 20:55:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 20:55:00,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:00,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:55:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:00,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:00,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:00,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:55:00,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:00,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:55:00,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:00,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:00,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:55:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:00,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:00,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:00,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 20:55:00,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:00,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 20:55:00,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:00,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:00,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:00,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:00,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:00,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:00,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-14 20:55:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:00,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:00,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:00,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 20:55:00,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:00,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 20:55:00,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:00,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:00,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:55:00,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:00,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:55:00,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:00,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-14 20:55:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:55:00,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:55:00,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:55:00,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 20:55:00,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:55:00,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 20:55:00,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:55:00,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:55:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:55:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:55:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 20:55:00,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:55:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 114 proven. 3 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-10-14 20:55:00,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233380232] [2020-10-14 20:55:00,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:55:00,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:55:00,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805337001] [2020-10-14 20:55:00,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:55:00,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:55:00,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:55:00,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:55:00,654 INFO L87 Difference]: Start difference. First operand 4520 states and 5428 transitions. Second operand 5 states. [2020-10-14 20:55:01,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:55:01,692 INFO L93 Difference]: Finished difference Result 4522 states and 5431 transitions. [2020-10-14 20:55:01,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:55:01,693 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 384 [2020-10-14 20:55:01,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:55:01,694 INFO L225 Difference]: With dead ends: 4522 [2020-10-14 20:55:01,694 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 20:55:01,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:55:01,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 20:55:01,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 20:55:01,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 20:55:01,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 20:55:01,714 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 384 [2020-10-14 20:55:01,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:55:01,714 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 20:55:01,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:55:01,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 20:55:01,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 20:55:01,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 20:55:01,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 20:55:02,707 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 114 [2020-10-14 20:55:03,039 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 114 [2020-10-14 20:55:03,846 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 45 [2020-10-14 20:55:04,160 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 37 [2020-10-14 20:55:04,456 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 37 [2020-10-14 20:55:04,461 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 20:55:04,462 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-14 20:55:04,462 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 20:55:04,462 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-10-14 20:55:04,462 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,462 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,462 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,462 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,463 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,463 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,463 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-10-14 20:55:04,463 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-10-14 20:55:04,463 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-10-14 20:55:04,463 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-10-14 20:55:04,463 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-14 20:55:04,463 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-14 20:55:04,464 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-14 20:55:04,464 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-14 20:55:04,464 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-10-14 20:55:04,464 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-10-14 20:55:04,464 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-10-14 20:55:04,464 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,464 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,465 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,465 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,465 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,465 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-10-14 20:55:04,465 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-10-14 20:55:04,465 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-10-14 20:55:04,465 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-10-14 20:55:04,465 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-10-14 20:55:04,465 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-14 20:55:04,465 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-14 20:55:04,465 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-10-14 20:55:04,465 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-14 20:55:04,466 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-10-14 20:55:04,466 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-10-14 20:55:04,466 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-10-14 20:55:04,466 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-10-14 20:55:04,466 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 118) no Hoare annotation was computed. [2020-10-14 20:55:04,466 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-10-14 20:55:04,466 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,466 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,466 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,466 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,466 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,466 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-10-14 20:55:04,466 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-14 20:55:04,467 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-10-14 20:55:04,467 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-10-14 20:55:04,467 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-10-14 20:55:04,467 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-14 20:55:04,467 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-10-14 20:55:04,467 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-10-14 20:55:04,467 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-10-14 20:55:04,467 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-10-14 20:55:04,467 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,467 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,468 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,468 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,468 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,468 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-10-14 20:55:04,468 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-10-14 20:55:04,468 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-10-14 20:55:04,468 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-10-14 20:55:04,468 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-10-14 20:55:04,468 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-10-14 20:55:04,469 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-10-14 20:55:04,469 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-14 20:55:04,469 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-10-14 20:55:04,469 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-10-14 20:55:04,469 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-10-14 20:55:04,469 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-10-14 20:55:04,469 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-10-14 20:55:04,469 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,469 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,469 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,470 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,470 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,470 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-10-14 20:55:04,470 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-10-14 20:55:04,470 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-14 20:55:04,470 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-14 20:55:04,470 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-14 20:55:04,470 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-10-14 20:55:04,470 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-10-14 20:55:04,470 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-10-14 20:55:04,470 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-10-14 20:55:04,470 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-10-14 20:55:04,471 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-10-14 20:55:04,472 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-10-14 20:55:04,473 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-10-14 20:55:04,474 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-10-14 20:55:04,474 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-10-14 20:55:04,474 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-10-14 20:55:04,474 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-10-14 20:55:04,474 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-10-14 20:55:04,474 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-10-14 20:55:04,474 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-14 20:55:04,474 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-10-14 20:55:04,474 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-10-14 20:55:04,474 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a19~0)| 8))) (.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or .cse0 (not (= 7 |old(~a19~0)|))) (or .cse1 (= |old(~a10~0)| 1) .cse0) (or (not (= 9 |old(~a19~0)|)) .cse0) (or (not (<= 10 |old(~a19~0)|)) .cse0 (not (<= |old(~a10~0)| 2)) (not (<= 1 |old(~a10~0)|))) (or (not (<= |old(~a10~0)| 0)) .cse0 (not (<= |old(~a1~0)| 150))) (or .cse1 (not (<= 331498 |old(~a1~0)|)) .cse0))) [2020-10-14 20:55:04,474 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-10-14 20:55:04,475 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-10-14 20:55:04,475 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-10-14 20:55:04,475 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,475 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,475 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,475 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,475 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,475 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,475 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-10-14 20:55:04,475 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-10-14 20:55:04,475 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-14 20:55:04,475 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-10-14 20:55:04,476 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-10-14 20:55:04,476 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-14 20:55:04,476 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-14 20:55:04,476 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-10-14 20:55:04,476 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-10-14 20:55:04,476 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-10-14 20:55:04,476 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-10-14 20:55:04,476 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-10-14 20:55:04,476 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-10-14 20:55:04,476 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-10-14 20:55:04,477 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-10-14 20:55:04,478 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-10-14 20:55:04,479 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-14 20:55:04,479 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-10-14 20:55:04,479 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-10-14 20:55:04,479 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-10-14 20:55:04,479 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 20:55:04,479 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= ~a19~0 9) (<= ~a1~0 32)) [2020-10-14 20:55:04,479 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 20:55:04,479 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 20:55:04,480 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= |old(~a10~0)| 0)) (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 32))) [2020-10-14 20:55:04,480 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-10-14 20:55:04,480 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse2 (<= ~a19~0 8)) (.cse0 (<= 10 ~a19~0)) (.cse1 (<= ~a10~0 2))) (or (not (<= |old(~a10~0)| 0)) (= 7 ~a19~0) (and .cse0 .cse1 (<= ~a1~0 150)) (and (<= 331498 ~a1~0) .cse2) (and (not (= ~a10~0 1)) .cse2) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (and (<= 1 ~a10~0) .cse0 .cse1) (not (<= |old(~a1~0)| 32)))) [2020-10-14 20:55:04,480 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-10-14 20:55:04,480 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-10-14 20:55:04,480 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse2 (<= ~a19~0 8)) (.cse0 (<= 10 ~a19~0)) (.cse1 (<= ~a10~0 2))) (or (not (<= |old(~a10~0)| 0)) (= 7 ~a19~0) (and .cse0 .cse1 (<= ~a1~0 150)) (and (<= 331498 ~a1~0) .cse2) (and (not (= ~a10~0 1)) .cse2) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (and (<= 1 ~a10~0) .cse0 .cse1) (not (<= |old(~a1~0)| 32)))) [2020-10-14 20:55:04,480 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-10-14 20:55:04,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 08:55:04 BoogieIcfgContainer [2020-10-14 20:55:04,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 20:55:04,506 INFO L168 Benchmark]: Toolchain (without parser) took 61095.17 ms. Allocated memory was 147.8 MB in the beginning and 1.1 GB in the end (delta: 970.5 MB). Free memory was 102.7 MB in the beginning and 502.7 MB in the end (delta: -400.0 MB). Peak memory consumption was 570.5 MB. Max. memory is 7.1 GB. [2020-10-14 20:55:04,506 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-14 20:55:04,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.96 ms. Allocated memory was 147.8 MB in the beginning and 206.6 MB in the end (delta: 58.7 MB). Free memory was 102.3 MB in the beginning and 172.3 MB in the end (delta: -70.0 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. [2020-10-14 20:55:04,508 INFO L168 Benchmark]: Boogie Preprocessor took 103.79 ms. Allocated memory is still 206.6 MB. Free memory was 172.3 MB in the beginning and 167.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-14 20:55:04,509 INFO L168 Benchmark]: RCFGBuilder took 1445.91 ms. Allocated memory was 206.6 MB in the beginning and 236.5 MB in the end (delta: 29.9 MB). Free memory was 167.4 MB in the beginning and 176.8 MB in the end (delta: -9.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. [2020-10-14 20:55:04,509 INFO L168 Benchmark]: TraceAbstraction took 58782.32 ms. Allocated memory was 236.5 MB in the beginning and 1.1 GB in the end (delta: 881.9 MB). Free memory was 176.8 MB in the beginning and 502.7 MB in the end (delta: -325.9 MB). Peak memory consumption was 555.9 MB. Max. memory is 7.1 GB. [2020-10-14 20:55:04,513 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 757.96 ms. Allocated memory was 147.8 MB in the beginning and 206.6 MB in the end (delta: 58.7 MB). Free memory was 102.3 MB in the beginning and 172.3 MB in the end (delta: -70.0 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.79 ms. Allocated memory is still 206.6 MB. Free memory was 172.3 MB in the beginning and 167.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1445.91 ms. Allocated memory was 206.6 MB in the beginning and 236.5 MB in the end (delta: 29.9 MB). Free memory was 167.4 MB in the beginning and 176.8 MB in the end (delta: -9.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 58782.32 ms. Allocated memory was 236.5 MB in the beginning and 1.1 GB in the end (delta: 881.9 MB). Free memory was 176.8 MB in the beginning and 502.7 MB in the end (delta: -325.9 MB). Peak memory consumption was 555.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 118]: 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: 582]: Loop Invariant Derived loop invariant: (((((((!(\old(a10) <= 0) || 7 == a19) || ((10 <= a19 && a10 <= 2) && a1 <= 150)) || (331498 <= a1 && a19 <= 8)) || (!(a10 == 1) && a19 <= 8)) || !(9 == \old(a19))) || a19 == 9) || ((1 <= a10 && 10 <= a19) && a10 <= 2)) || !(\old(a1) <= 32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 55.9s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 19.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 351 SDtfs, 5718 SDslu, 418 SDs, 0 SdLazy, 11212 SolverSat, 1518 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 214 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4520occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 1866 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 237 PreInvPairs, 363 NumberOfFragments, 283 HoareAnnotationTreeSize, 237 FomulaSimplifications, 851707 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 71481 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 33.2s InterpolantComputationTime, 3002 NumberOfCodeBlocks, 3002 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2989 ConstructedInterpolants, 0 QuantifiedInterpolants, 1447590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 2468/2526 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...