/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:25:03,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:25:03,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:25:03,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:25:03,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:25:03,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:25:03,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:25:03,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:25:03,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:25:03,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:25:03,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:25:03,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:25:03,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:25:03,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:25:03,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:25:03,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:25:03,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:25:03,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:25:03,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:25:03,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:25:03,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:25:03,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:25:03,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:25:03,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:25:03,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:25:03,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:25:03,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:25:03,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:25:03,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:25:03,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:25:03,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:25:03,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:25:03,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:25:03,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:25:03,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:25:03,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:25:03,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:25:03,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:25:03,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:25:03,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:25:03,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:25:03,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:25:03,620 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:25:03,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:25:03,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:25:03,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:25:03,622 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:25:03,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:25:03,623 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:25:03,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:25:03,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:25:03,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:25:03,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:25:03,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:25:03,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:25:03,624 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:25:03,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:25:03,625 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:25:03,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:25:03,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:25:03,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:25:03,625 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:25:03,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:25:03,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:25:03,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:25:03,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:25:03,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:25:03,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:25:03,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:25:03,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:25:03,627 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:25:03,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:25:04,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:25:04,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:25:04,145 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:25:04,148 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:25:04,148 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:25:04,150 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label39.c [2020-09-21 11:25:04,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9215bfbce/5fde7688166c4ce5b0b7d067334702cf/FLAGbb6381ff0 [2020-09-21 11:25:04,939 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:25:04,940 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label39.c [2020-09-21 11:25:04,956 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9215bfbce/5fde7688166c4ce5b0b7d067334702cf/FLAGbb6381ff0 [2020-09-21 11:25:05,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9215bfbce/5fde7688166c4ce5b0b7d067334702cf [2020-09-21 11:25:05,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:25:05,184 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:25:05,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:25:05,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:25:05,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:25:05,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:25:05" (1/1) ... [2020-09-21 11:25:05,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@177f3252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:05, skipping insertion in model container [2020-09-21 11:25:05,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:25:05" (1/1) ... [2020-09-21 11:25:05,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:25:05,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:25:05,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:25:05,745 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:25:06,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:25:06,066 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:25:06,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:06 WrapperNode [2020-09-21 11:25:06,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:25:06,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:25:06,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:25:06,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:25:06,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:06" (1/1) ... [2020-09-21 11:25:06,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:06" (1/1) ... [2020-09-21 11:25:06,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:06" (1/1) ... [2020-09-21 11:25:06,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:06" (1/1) ... [2020-09-21 11:25:06,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:06" (1/1) ... [2020-09-21 11:25:06,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:06" (1/1) ... [2020-09-21 11:25:06,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:06" (1/1) ... [2020-09-21 11:25:06,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:25:06,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:25:06,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:25:06,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:25:06,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:25:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:25:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:25:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:25:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:25:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:25:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:25:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:25:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:25:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:25:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:25:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:25:07,552 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:25:07,552 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:25:07,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:25:07 BoogieIcfgContainer [2020-09-21 11:25:07,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:25:07,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:25:07,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:25:07,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:25:07,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:25:05" (1/3) ... [2020-09-21 11:25:07,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d113d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:25:07, skipping insertion in model container [2020-09-21 11:25:07,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:25:06" (2/3) ... [2020-09-21 11:25:07,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d113d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:25:07, skipping insertion in model container [2020-09-21 11:25:07,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:25:07" (3/3) ... [2020-09-21 11:25:07,571 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label39.c [2020-09-21 11:25:07,583 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:25:07,594 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:25:07,617 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:25:07,651 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:25:07,651 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:25:07,652 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:25:07,652 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:25:07,652 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:25:07,652 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:25:07,652 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:25:07,653 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:25:07,681 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-09-21 11:25:07,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-21 11:25:07,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:07,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:07,701 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:07,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:07,709 INFO L82 PathProgramCache]: Analyzing trace with hash -223585418, now seen corresponding path program 1 times [2020-09-21 11:25:07,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:07,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783670906] [2020-09-21 11:25:07,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:08,120 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:08,121 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:08,121 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:08,121 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:08,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-09-21 11:25:08,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:08,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 11:25:08,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:08,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:25:08,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:25:08,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-09-21 11:25:08,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:08,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:08,541 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:08,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:08,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:08,542 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:08,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:08,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:08,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:25:08,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:08,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:25:08,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:25:08,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:25:08,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783670906] [2020-09-21 11:25:08,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:25:08,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:25:08,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388426866] [2020-09-21 11:25:08,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:25:08,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:08,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:25:08,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:25:08,722 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-09-21 11:25:10,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:10,190 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-09-21 11:25:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:10,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2020-09-21 11:25:10,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:10,213 INFO L225 Difference]: With dead ends: 557 [2020-09-21 11:25:10,213 INFO L226 Difference]: Without dead ends: 286 [2020-09-21 11:25:10,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:10,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-21 11:25:10,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-09-21 11:25:10,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-21 11:25:10,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 384 transitions. [2020-09-21 11:25:10,317 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 384 transitions. Word has length 138 [2020-09-21 11:25:10,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:10,320 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 384 transitions. [2020-09-21 11:25:10,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:25:10,321 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 384 transitions. [2020-09-21 11:25:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-09-21 11:25:10,329 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:10,330 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:10,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:25:10,334 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:10,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:10,335 INFO L82 PathProgramCache]: Analyzing trace with hash -45517741, now seen corresponding path program 1 times [2020-09-21 11:25:10,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:10,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654197836] [2020-09-21 11:25:10,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:10,482 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:10,482 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:10,482 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:10,487 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:10,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-21 11:25:10,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:10,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-21 11:25:10,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:10,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:25:10,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:25:10,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:25:10,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:10,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:10,652 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:10,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:10,653 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:10,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:10,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:10,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:10,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:25:10,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:10,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:10,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:25:10,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 11:25:10,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:10,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:10,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:10,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:10,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:10,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:25:10,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:10,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:25:10,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:10,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:10,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:10,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:25:10,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:25:10,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654197836] [2020-09-21 11:25:10,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:25:10,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:25:10,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291159707] [2020-09-21 11:25:10,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:25:10,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:10,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:25:10,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:25:10,805 INFO L87 Difference]: Start difference. First operand 280 states and 384 transitions. Second operand 8 states. [2020-09-21 11:25:13,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:13,071 INFO L93 Difference]: Finished difference Result 1126 states and 1598 transitions. [2020-09-21 11:25:13,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:25:13,072 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 147 [2020-09-21 11:25:13,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:13,081 INFO L225 Difference]: With dead ends: 1126 [2020-09-21 11:25:13,081 INFO L226 Difference]: Without dead ends: 852 [2020-09-21 11:25:13,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:25:13,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2020-09-21 11:25:13,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 838. [2020-09-21 11:25:13,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-09-21 11:25:13,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1110 transitions. [2020-09-21 11:25:13,170 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1110 transitions. Word has length 147 [2020-09-21 11:25:13,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:13,170 INFO L479 AbstractCegarLoop]: Abstraction has 838 states and 1110 transitions. [2020-09-21 11:25:13,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:25:13,171 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1110 transitions. [2020-09-21 11:25:13,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-21 11:25:13,176 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:13,176 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:13,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:25:13,177 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:13,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:13,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1907035052, now seen corresponding path program 1 times [2020-09-21 11:25:13,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:13,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571344864] [2020-09-21 11:25:13,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:13,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:13,235 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:13,235 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:13,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:13,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-21 11:25:13,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:13,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:25:13,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:13,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:25:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:25:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:25:13,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:13,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:13,338 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:13,338 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:13,339 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:13,339 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:13,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:13,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:13,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:13,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:13,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:13,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:13,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:25:13,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:13,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:13,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:13,382 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:13,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:13,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:13,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:25:13,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:13,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:25:13,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:13,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:13,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:13,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:25:13,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:13,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:25:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:13,413 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:13,413 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:13,414 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:13,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:13,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:25:13,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:13,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:13,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:13,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:13,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:25:13,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:13,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:13,485 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 11:25:13,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571344864] [2020-09-21 11:25:13,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:13,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:25:13,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921755057] [2020-09-21 11:25:13,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:25:13,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:13,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:25:13,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:25:13,490 INFO L87 Difference]: Start difference. First operand 838 states and 1110 transitions. Second operand 8 states. [2020-09-21 11:25:15,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:15,254 INFO L93 Difference]: Finished difference Result 2264 states and 3180 transitions. [2020-09-21 11:25:15,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:25:15,255 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-09-21 11:25:15,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:15,272 INFO L225 Difference]: With dead ends: 2264 [2020-09-21 11:25:15,273 INFO L226 Difference]: Without dead ends: 1432 [2020-09-21 11:25:15,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:25:15,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-09-21 11:25:15,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1404. [2020-09-21 11:25:15,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1404 states. [2020-09-21 11:25:15,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1886 transitions. [2020-09-21 11:25:15,379 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1886 transitions. Word has length 166 [2020-09-21 11:25:15,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:15,379 INFO L479 AbstractCegarLoop]: Abstraction has 1404 states and 1886 transitions. [2020-09-21 11:25:15,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:25:15,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1886 transitions. [2020-09-21 11:25:15,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-21 11:25:15,386 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:15,387 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:15,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:25:15,387 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:15,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:15,388 INFO L82 PathProgramCache]: Analyzing trace with hash -2009167210, now seen corresponding path program 1 times [2020-09-21 11:25:15,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:15,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077578560] [2020-09-21 11:25:15,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:15,451 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:15,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:15,451 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:15,452 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:15,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-21 11:25:15,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:15,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:25:15,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:25:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:25:15,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:15,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:15,537 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:15,537 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:15,538 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:15,538 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:15,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:15,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:15,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:15,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:15,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:15,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:15,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:15,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:15,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:15,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:15,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:15,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:15,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:15,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 11:25:15,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:15,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:15,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:25:15,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:15,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 11:25:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:15,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:15,591 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:15,592 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:15,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:15,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:25:15,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:15,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:25:15,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:15,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-21 11:25:15,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:25:15,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077578560] [2020-09-21 11:25:15,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:15,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:15,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921797793] [2020-09-21 11:25:15,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:15,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:15,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:15,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:15,656 INFO L87 Difference]: Start difference. First operand 1404 states and 1886 transitions. Second operand 7 states. [2020-09-21 11:25:17,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:17,017 INFO L93 Difference]: Finished difference Result 2985 states and 4149 transitions. [2020-09-21 11:25:17,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:25:17,018 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2020-09-21 11:25:17,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:17,029 INFO L225 Difference]: With dead ends: 2985 [2020-09-21 11:25:17,029 INFO L226 Difference]: Without dead ends: 1587 [2020-09-21 11:25:17,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:25:17,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2020-09-21 11:25:17,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1273. [2020-09-21 11:25:17,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1273 states. [2020-09-21 11:25:17,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1717 transitions. [2020-09-21 11:25:17,103 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1717 transitions. Word has length 167 [2020-09-21 11:25:17,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:17,103 INFO L479 AbstractCegarLoop]: Abstraction has 1273 states and 1717 transitions. [2020-09-21 11:25:17,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1717 transitions. [2020-09-21 11:25:17,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-21 11:25:17,108 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:17,109 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:17,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:25:17,109 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:17,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:17,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1930007262, now seen corresponding path program 1 times [2020-09-21 11:25:17,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:17,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039416963] [2020-09-21 11:25:17,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:17,185 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:17,185 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:17,185 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:17,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:17,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-09-21 11:25:17,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:17,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:25:17,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:17,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:17,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 11:25:17,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:25:17,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:17,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:17,293 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:17,293 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:17,294 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:17,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:17,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:17,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:17,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:17,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:17,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:17,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:17,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:17,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:17,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:17,333 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:17,334 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:17,334 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:17,334 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:17,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 11:25:17,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:17,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:17,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:17,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:17,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:17,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:25:17,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:17,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:25:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:17,371 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:17,371 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:17,372 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:17,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:17,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:17,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:17,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:25:17,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:17,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:17,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:17,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:25:17,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:17,434 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:25:17,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039416963] [2020-09-21 11:25:17,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:17,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:17,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250973114] [2020-09-21 11:25:17,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:17,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:17,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:17,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:17,437 INFO L87 Difference]: Start difference. First operand 1273 states and 1717 transitions. Second operand 7 states. [2020-09-21 11:25:18,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:18,843 INFO L93 Difference]: Finished difference Result 3400 states and 4731 transitions. [2020-09-21 11:25:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:25:18,843 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-09-21 11:25:18,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:18,858 INFO L225 Difference]: With dead ends: 3400 [2020-09-21 11:25:18,859 INFO L226 Difference]: Without dead ends: 2133 [2020-09-21 11:25:18,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:25:18,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2133 states. [2020-09-21 11:25:18,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2133 to 1706. [2020-09-21 11:25:18,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1706 states. [2020-09-21 11:25:18,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2234 transitions. [2020-09-21 11:25:18,928 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2234 transitions. Word has length 172 [2020-09-21 11:25:18,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:18,928 INFO L479 AbstractCegarLoop]: Abstraction has 1706 states and 2234 transitions. [2020-09-21 11:25:18,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:18,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2234 transitions. [2020-09-21 11:25:18,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-21 11:25:18,935 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:18,935 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:18,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:25:18,936 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:18,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:18,936 INFO L82 PathProgramCache]: Analyzing trace with hash -322256070, now seen corresponding path program 1 times [2020-09-21 11:25:18,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:18,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221958954] [2020-09-21 11:25:18,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:18,999 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:18,999 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:18,999 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:18,999 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:19,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-21 11:25:19,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:19,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:25:19,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:19,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-21 11:25:19,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:25:19,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:19,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:19,108 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:19,108 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:19,108 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:19,109 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:19,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:19,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:19,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:19,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:19,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:19,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:19,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:19,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:19,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:19,150 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:19,151 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:19,151 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:19,151 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:19,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-21 11:25:19,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:19,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:25:19,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:19,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-21 11:25:19,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:19,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:25:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:19,210 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:19,215 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:19,215 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:19,216 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:19,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:19,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:19,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 11:25:19,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:19,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:19,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:19,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:25:19,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:19,338 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:25:19,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221958954] [2020-09-21 11:25:19,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:19,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:19,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510525347] [2020-09-21 11:25:19,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:19,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:19,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:19,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:19,342 INFO L87 Difference]: Start difference. First operand 1706 states and 2234 transitions. Second operand 7 states. [2020-09-21 11:25:21,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:21,097 INFO L93 Difference]: Finished difference Result 4062 states and 5706 transitions. [2020-09-21 11:25:21,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:25:21,098 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2020-09-21 11:25:21,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:21,115 INFO L225 Difference]: With dead ends: 4062 [2020-09-21 11:25:21,116 INFO L226 Difference]: Without dead ends: 2362 [2020-09-21 11:25:21,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:25:21,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-09-21 11:25:21,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 1992. [2020-09-21 11:25:21,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1992 states. [2020-09-21 11:25:21,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1992 states to 1992 states and 2521 transitions. [2020-09-21 11:25:21,244 INFO L78 Accepts]: Start accepts. Automaton has 1992 states and 2521 transitions. Word has length 186 [2020-09-21 11:25:21,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:21,245 INFO L479 AbstractCegarLoop]: Abstraction has 1992 states and 2521 transitions. [2020-09-21 11:25:21,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:21,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1992 states and 2521 transitions. [2020-09-21 11:25:21,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-21 11:25:21,254 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:21,255 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:21,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:25:21,255 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:21,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:21,256 INFO L82 PathProgramCache]: Analyzing trace with hash 762738789, now seen corresponding path program 1 times [2020-09-21 11:25:21,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:21,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870371317] [2020-09-21 11:25:21,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:21,336 FATAL L256 erpolLogProxyWrapper]: Difference in size: 3 [2020-09-21 11:25:21,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -52 [2020-09-21 11:25:21,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 52 [2020-09-21 11:25:21,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:21,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-09-21 11:25:21,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:21,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:25:21,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:21,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:21,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-21 11:25:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:25:21,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:21,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:21,466 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:21,466 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:21,466 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:21,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:21,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:21,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:21,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:21,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:21,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:21,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:21,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:21,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:21,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:21,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:21,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:21,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:21,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:21,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:25:21,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:21,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:21,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:21,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:21,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:21,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:21,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:21,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:25:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:21,521 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:21,521 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:21,522 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:21,522 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:21,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-21 11:25:21,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:21,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:25:21,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:25:21,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:21,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-21 11:25:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:21,578 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:21,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:21,579 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:21,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:21,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:21,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:21,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:25:21,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:21,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:21,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:21,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:25:21,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:21,685 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-21 11:25:21,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870371317] [2020-09-21 11:25:21,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:21,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:21,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827625166] [2020-09-21 11:25:21,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:21,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:21,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:21,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:21,688 INFO L87 Difference]: Start difference. First operand 1992 states and 2521 transitions. Second operand 7 states. [2020-09-21 11:25:23,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:23,342 INFO L93 Difference]: Finished difference Result 4201 states and 5641 transitions. [2020-09-21 11:25:23,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:25:23,343 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2020-09-21 11:25:23,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:23,358 INFO L225 Difference]: With dead ends: 4201 [2020-09-21 11:25:23,358 INFO L226 Difference]: Without dead ends: 2215 [2020-09-21 11:25:23,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:25:23,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2020-09-21 11:25:23,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 2131. [2020-09-21 11:25:23,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2131 states. [2020-09-21 11:25:23,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2131 states to 2131 states and 2659 transitions. [2020-09-21 11:25:23,440 INFO L78 Accepts]: Start accepts. Automaton has 2131 states and 2659 transitions. Word has length 211 [2020-09-21 11:25:23,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:23,441 INFO L479 AbstractCegarLoop]: Abstraction has 2131 states and 2659 transitions. [2020-09-21 11:25:23,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:23,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2131 states and 2659 transitions. [2020-09-21 11:25:23,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-09-21 11:25:23,450 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:23,451 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:23,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:25:23,451 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:23,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:23,452 INFO L82 PathProgramCache]: Analyzing trace with hash -166948174, now seen corresponding path program 1 times [2020-09-21 11:25:23,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:23,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [943210660] [2020-09-21 11:25:23,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:23,518 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:23,519 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:23,519 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:23,519 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:23,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-21 11:25:23,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:23,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:25:23,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:23,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:23,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 11:25:23,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-21 11:25:23,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:23,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:23,618 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:23,619 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:23,619 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:23,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:23,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:23,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:23,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:23,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:23,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:23,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:23,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:23,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:23,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:23,650 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:23,650 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:23,650 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:23,650 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:23,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 11:25:23,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:23,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:23,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:23,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:23,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:23,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:25:23,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:23,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:25:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:23,683 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:23,684 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:23,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:23,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:23,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:25:23,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:23,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:25:23,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:23,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:23,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:23,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:25:23,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:23,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 11:25:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:23,784 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:23,785 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:23,785 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:23,785 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:23,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:25:23,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:23,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:23,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:23,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:23,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:25:23,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:23,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:23,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 11:25:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:23,797 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:23,797 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:23,797 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:23,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:23,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:23,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:23,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:23,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:23,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:23,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:25:23,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:23,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 110 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-21 11:25:23,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [943210660] [2020-09-21 11:25:23,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:23,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:23,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093960801] [2020-09-21 11:25:23,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:23,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:23,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:23,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:23,869 INFO L87 Difference]: Start difference. First operand 2131 states and 2659 transitions. Second operand 7 states. [2020-09-21 11:25:25,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:25,484 INFO L93 Difference]: Finished difference Result 4264 states and 5331 transitions. [2020-09-21 11:25:25,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:25:25,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-09-21 11:25:25,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:25,497 INFO L225 Difference]: With dead ends: 4264 [2020-09-21 11:25:25,497 INFO L226 Difference]: Without dead ends: 2139 [2020-09-21 11:25:25,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:25:25,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2020-09-21 11:25:25,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 1996. [2020-09-21 11:25:25,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1996 states. [2020-09-21 11:25:25,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2404 transitions. [2020-09-21 11:25:25,553 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2404 transitions. Word has length 236 [2020-09-21 11:25:25,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:25,554 INFO L479 AbstractCegarLoop]: Abstraction has 1996 states and 2404 transitions. [2020-09-21 11:25:25,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:25,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2404 transitions. [2020-09-21 11:25:25,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-09-21 11:25:25,561 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:25,561 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:25,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:25:25,562 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:25,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:25,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1088625906, now seen corresponding path program 1 times [2020-09-21 11:25:25,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:25,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063303415] [2020-09-21 11:25:25,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:25,628 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:25:25,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -38 [2020-09-21 11:25:25,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 38 [2020-09-21 11:25:25,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:25,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-21 11:25:25,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:25,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:25:25,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:25,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:25,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-21 11:25:25,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-21 11:25:25,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:25,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:25,734 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:25,734 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:25,735 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:25,735 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:25,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:25,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:25,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:25,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:25,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:25,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:25,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:25,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:25,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:25,766 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:25,767 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:25,767 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:25,767 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:25,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-21 11:25:25,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:25,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:25,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:25,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:25,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:25,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-21 11:25:25,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:25,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:25:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:25,809 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:25,809 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:25,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:25,810 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:25,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:25:25,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:25,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:25:25,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:25,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:25,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:25,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:25:25,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:25,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-21 11:25:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:25,866 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:25,866 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:25,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:25,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:25,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:25:25,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:25,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:25,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:25,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:25,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:25:25,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:25,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:25,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:25:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:25,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:25,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:25,884 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:25,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:25,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:25,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:25,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:25:25,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:25,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:25,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:25:25,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:25,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:25,954 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 138 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-21 11:25:25,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063303415] [2020-09-21 11:25:25,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:25,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:25:25,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370863851] [2020-09-21 11:25:25,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:25:25,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:25,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:25:25,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:25:25,962 INFO L87 Difference]: Start difference. First operand 1996 states and 2404 transitions. Second operand 8 states. [2020-09-21 11:25:28,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:28,231 INFO L93 Difference]: Finished difference Result 4910 states and 6221 transitions. [2020-09-21 11:25:28,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:25:28,232 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 250 [2020-09-21 11:25:28,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:28,249 INFO L225 Difference]: With dead ends: 4910 [2020-09-21 11:25:28,249 INFO L226 Difference]: Without dead ends: 2920 [2020-09-21 11:25:28,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:25:28,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2020-09-21 11:25:28,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 2699. [2020-09-21 11:25:28,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2699 states. [2020-09-21 11:25:28,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 3194 transitions. [2020-09-21 11:25:28,337 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 3194 transitions. Word has length 250 [2020-09-21 11:25:28,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:28,338 INFO L479 AbstractCegarLoop]: Abstraction has 2699 states and 3194 transitions. [2020-09-21 11:25:28,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:25:28,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 3194 transitions. [2020-09-21 11:25:28,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-09-21 11:25:28,347 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:28,347 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:28,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:25:28,348 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:28,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:28,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1756755816, now seen corresponding path program 1 times [2020-09-21 11:25:28,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:28,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132945319] [2020-09-21 11:25:28,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:28,412 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:28,412 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:28,412 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:28,412 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:28,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-09-21 11:25:28,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:28,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:25:28,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:28,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:28,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-21 11:25:28,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-21 11:25:28,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:28,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:28,514 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:28,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:28,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:28,515 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:28,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:28,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:28,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:28,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:28,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:28,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:28,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:28,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:28,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:28,552 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:28,552 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:28,552 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:28,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:28,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-21 11:25:28,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:28,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:28,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:28,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:28,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:28,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:25:28,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:28,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:25:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:28,610 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:28,611 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:28,611 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:28,611 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:28,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:25:28,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:28,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:25:28,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:28,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:28,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:25:28,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-21 11:25:28,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:28,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-21 11:25:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:28,686 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:28,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:28,686 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:28,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:28,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:25:28,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:28,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:28,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:25:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:28,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:28,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-09-21 11:25:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:28,699 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:28,699 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:28,700 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:28,700 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:28,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:28,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:28,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:28,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:28,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:28,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:25:28,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:28,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:28,767 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 144 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-21 11:25:28,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132945319] [2020-09-21 11:25:28,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:28,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:25:28,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43598738] [2020-09-21 11:25:28,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:25:28,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:28,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:25:28,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:25:28,770 INFO L87 Difference]: Start difference. First operand 2699 states and 3194 transitions. Second operand 7 states. [2020-09-21 11:25:30,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:30,079 INFO L93 Difference]: Finished difference Result 5664 states and 6776 transitions. [2020-09-21 11:25:30,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:25:30,080 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 253 [2020-09-21 11:25:30,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:30,095 INFO L225 Difference]: With dead ends: 5664 [2020-09-21 11:25:30,095 INFO L226 Difference]: Without dead ends: 2971 [2020-09-21 11:25:30,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:25:30,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2020-09-21 11:25:30,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 2697. [2020-09-21 11:25:30,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2697 states. [2020-09-21 11:25:30,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2697 states to 2697 states and 3212 transitions. [2020-09-21 11:25:30,189 INFO L78 Accepts]: Start accepts. Automaton has 2697 states and 3212 transitions. Word has length 253 [2020-09-21 11:25:30,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:30,190 INFO L479 AbstractCegarLoop]: Abstraction has 2697 states and 3212 transitions. [2020-09-21 11:25:30,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:25:30,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2697 states and 3212 transitions. [2020-09-21 11:25:30,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-09-21 11:25:30,199 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:30,200 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:30,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:25:30,200 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:30,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:30,201 INFO L82 PathProgramCache]: Analyzing trace with hash -974487158, now seen corresponding path program 1 times [2020-09-21 11:25:30,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:30,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79773483] [2020-09-21 11:25:30,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:30,302 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:30,302 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:30,302 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:30,302 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:30,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-09-21 11:25:30,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:30,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:25:30,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:30,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:30,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-21 11:25:30,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-21 11:25:30,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:30,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:30,453 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:30,453 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:30,453 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:30,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:30,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:30,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:30,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:30,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:30,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:30,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:30,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:30,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:30,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:30,480 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:30,480 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:30,480 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:30,481 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:30,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-21 11:25:30,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:30,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:30,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:30,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:30,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:30,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:30,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:30,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:25:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:30,511 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:30,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:30,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:30,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:30,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:25:30,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:30,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:30,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:30,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:30,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:30,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:30,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:30,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-21 11:25:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:30,534 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:30,534 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:30,534 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:30,534 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:30,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:25:30,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:30,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:30,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:30,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:30,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:30,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:30,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:30,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-21 11:25:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:30,548 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:30,549 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:30,549 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:30,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:30,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:30,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:30,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:30,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:30,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:30,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:30,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:25:30,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:30,627 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-09-21 11:25:30,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79773483] [2020-09-21 11:25:30,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:30,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:25:30,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437530328] [2020-09-21 11:25:30,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:30,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:30,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:30,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:30,630 INFO L87 Difference]: Start difference. First operand 2697 states and 3212 transitions. Second operand 5 states. [2020-09-21 11:25:31,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:31,853 INFO L93 Difference]: Finished difference Result 5801 states and 7000 transitions. [2020-09-21 11:25:31,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:31,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2020-09-21 11:25:31,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:31,867 INFO L225 Difference]: With dead ends: 5801 [2020-09-21 11:25:31,868 INFO L226 Difference]: Without dead ends: 3110 [2020-09-21 11:25:31,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:25:31,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2020-09-21 11:25:31,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 2832. [2020-09-21 11:25:31,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2832 states. [2020-09-21 11:25:31,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 3389 transitions. [2020-09-21 11:25:31,940 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 3389 transitions. Word has length 280 [2020-09-21 11:25:31,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:31,941 INFO L479 AbstractCegarLoop]: Abstraction has 2832 states and 3389 transitions. [2020-09-21 11:25:31,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:31,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 3389 transitions. [2020-09-21 11:25:31,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-09-21 11:25:31,953 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:25:31,953 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:25:31,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:25:31,953 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:25:31,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:25:31,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1611436567, now seen corresponding path program 1 times [2020-09-21 11:25:31,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:25:31,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853174161] [2020-09-21 11:25:31,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:25:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:32,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 6 [2020-09-21 11:25:32,116 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -184 [2020-09-21 11:25:32,116 FATAL L256 erpolLogProxyWrapper]: Difference in width: 184 [2020-09-21 11:25:32,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:32,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-09-21 11:25:32,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:32,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 11:25:32,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:32,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:25:32,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-21 11:25:32,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-21 11:25:32,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:32,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:25:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:32,304 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:32,304 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:32,304 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:32,305 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:32,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:25:32,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:32,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:32,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:32,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:32,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:25:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:32,331 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:32,331 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:32,331 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:32,331 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:32,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-21 11:25:32,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:32,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:32,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:32,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:32,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:32,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:32,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:32,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:25:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:32,370 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:32,370 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:32,371 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:32,371 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:32,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:25:32,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:32,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:32,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:32,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:32,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-21 11:25:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:32,399 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:32,399 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:32,399 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:32,400 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:32,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:25:32,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:32,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:32,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:32,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:32,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-21 11:25:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:32,410 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:32,410 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:32,411 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:32,411 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:32,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:25:32,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:32,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:25:32,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:32,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:25:32,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:32,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:25:32,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:25:32,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-21 11:25:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:25:32,433 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:25:32,434 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:25:32,434 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:25:32,434 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:25:32,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:25:32,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:25:32,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:25:32,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:25:32,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:25:32,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:25:32,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 11:25:32,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:25:32,561 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-09-21 11:25:32,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853174161] [2020-09-21 11:25:32,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:25:32,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:25:32,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160491111] [2020-09-21 11:25:32,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:25:32,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:25:32,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:25:32,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:25:32,564 INFO L87 Difference]: Start difference. First operand 2832 states and 3389 transitions. Second operand 5 states. [2020-09-21 11:25:33,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:25:33,890 INFO L93 Difference]: Finished difference Result 5799 states and 6959 transitions. [2020-09-21 11:25:33,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:25:33,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 309 [2020-09-21 11:25:33,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:25:33,892 INFO L225 Difference]: With dead ends: 5799 [2020-09-21 11:25:33,892 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:25:33,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:25:33,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:25:33,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:25:33,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:25:33,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:25:33,904 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 309 [2020-09-21 11:25:33,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:25:33,904 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:25:33,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:25:33,904 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:25:33,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:25:33,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:25:33,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:25:34,292 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2020-09-21 11:25:34,693 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2020-09-21 11:25:35,123 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2020-09-21 11:25:35,485 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-09-21 11:25:37,479 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 301 DAG size of output: 151 [2020-09-21 11:25:39,041 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 301 DAG size of output: 151 [2020-09-21 11:25:40,271 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 184 DAG size of output: 60 [2020-09-21 11:25:41,278 WARN L193 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 41 [2020-09-21 11:25:42,201 WARN L193 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 41 [2020-09-21 11:25:42,208 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:25:42,209 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-09-21 11:25:42,209 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:25:42,209 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-09-21 11:25:42,210 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-09-21 11:25:42,210 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,210 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,210 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,210 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,210 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,211 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,211 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-09-21 11:25:42,211 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-09-21 11:25:42,211 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-09-21 11:25:42,211 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-09-21 11:25:42,211 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-09-21 11:25:42,211 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-09-21 11:25:42,212 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-09-21 11:25:42,212 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-09-21 11:25:42,212 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-09-21 11:25:42,212 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-09-21 11:25:42,213 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,213 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,213 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,213 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,214 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,214 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,214 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-09-21 11:25:42,214 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-09-21 11:25:42,214 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-09-21 11:25:42,214 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-09-21 11:25:42,214 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-09-21 11:25:42,215 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-09-21 11:25:42,215 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-09-21 11:25:42,215 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-09-21 11:25:42,215 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-09-21 11:25:42,215 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-09-21 11:25:42,215 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-09-21 11:25:42,216 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 572) no Hoare annotation was computed. [2020-09-21 11:25:42,216 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-09-21 11:25:42,216 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-09-21 11:25:42,216 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-09-21 11:25:42,216 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-09-21 11:25:42,216 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,217 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,217 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,217 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,217 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,217 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-09-21 11:25:42,218 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-09-21 11:25:42,218 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-09-21 11:25:42,218 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-09-21 11:25:42,218 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-09-21 11:25:42,218 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-09-21 11:25:42,218 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-09-21 11:25:42,218 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-09-21 11:25:42,219 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-09-21 11:25:42,219 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,219 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,219 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,219 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,220 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,220 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-09-21 11:25:42,221 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-09-21 11:25:42,221 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-09-21 11:25:42,222 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-09-21 11:25:42,222 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-09-21 11:25:42,222 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-09-21 11:25:42,222 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-09-21 11:25:42,222 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-09-21 11:25:42,222 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-09-21 11:25:42,222 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-09-21 11:25:42,223 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-09-21 11:25:42,223 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-09-21 11:25:42,223 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-09-21 11:25:42,223 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,223 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,223 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,223 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,223 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,224 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-09-21 11:25:42,224 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-09-21 11:25:42,224 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-09-21 11:25:42,224 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-09-21 11:25:42,224 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-09-21 11:25:42,224 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-09-21 11:25:42,224 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-09-21 11:25:42,225 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-09-21 11:25:42,225 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-09-21 11:25:42,225 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,225 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,225 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,225 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,225 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,225 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,226 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-09-21 11:25:42,226 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,226 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-09-21 11:25:42,228 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-09-21 11:25:42,228 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-09-21 11:25:42,228 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-09-21 11:25:42,228 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-09-21 11:25:42,228 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-09-21 11:25:42,228 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-09-21 11:25:42,229 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-09-21 11:25:42,229 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-09-21 11:25:42,229 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-09-21 11:25:42,229 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-09-21 11:25:42,229 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-09-21 11:25:42,229 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-09-21 11:25:42,229 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,229 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,230 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,230 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,230 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,231 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-09-21 11:25:42,231 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-09-21 11:25:42,231 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-09-21 11:25:42,231 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-09-21 11:25:42,232 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-09-21 11:25:42,232 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-09-21 11:25:42,232 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-09-21 11:25:42,232 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-09-21 11:25:42,233 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,233 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,233 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,234 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,234 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,234 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-09-21 11:25:42,234 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-09-21 11:25:42,234 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-09-21 11:25:42,234 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-09-21 11:25:42,234 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-09-21 11:25:42,235 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-09-21 11:25:42,235 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-09-21 11:25:42,235 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-09-21 11:25:42,235 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-09-21 11:25:42,235 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-09-21 11:25:42,237 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse5 (= 5 ~a16~0)) (.cse6 (not (= 5 |old(~a16~0)|))) (.cse8 (= ~a16~0 |old(~a16~0)|)) (.cse7 (not (= |old(~a21~0)| 1))) (.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|))) (and (or (= |old(~a8~0)| 13) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7) (or (not (= 6 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse8 .cse4)) (or (not (= |old(~a17~0)| 1)) (and .cse1 .cse2 .cse3 .cse4 .cse5 (= ~a17~0 1)) .cse6) (or (not (= |old(~a17~0)| |old(~a21~0)|)) (not (<= |old(~a16~0)| 5)) (not (= |old(~a20~0)| 1)) (and .cse1 .cse0 .cse2 .cse8 .cse4 (= ~a20~0 1)) .cse7) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a16~0 4)) (not (= 4 |old(~a16~0)|))))) [2020-09-21 11:25:42,237 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-09-21 11:25:42,237 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,237 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,237 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,237 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,237 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-09-21 11:25:42,238 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,238 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,238 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-09-21 11:25:42,238 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-09-21 11:25:42,238 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-09-21 11:25:42,238 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-09-21 11:25:42,238 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-09-21 11:25:42,238 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-09-21 11:25:42,239 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-09-21 11:25:42,239 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-09-21 11:25:42,239 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-09-21 11:25:42,239 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-09-21 11:25:42,239 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-09-21 11:25:42,239 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-09-21 11:25:42,239 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,240 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,240 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,240 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,240 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,240 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-09-21 11:25:42,240 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,240 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-09-21 11:25:42,241 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-09-21 11:25:42,241 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-09-21 11:25:42,241 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-09-21 11:25:42,241 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-09-21 11:25:42,241 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-09-21 11:25:42,241 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-09-21 11:25:42,242 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-09-21 11:25:42,242 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-09-21 11:25:42,242 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-09-21 11:25:42,242 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-09-21 11:25:42,242 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-09-21 11:25:42,242 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-09-21 11:25:42,242 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-09-21 11:25:42,243 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,243 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,243 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,275 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,275 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,275 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 11:25:42,275 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-09-21 11:25:42,275 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-09-21 11:25:42,275 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-09-21 11:25:42,276 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-09-21 11:25:42,276 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-09-21 11:25:42,276 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-09-21 11:25:42,276 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-09-21 11:25:42,276 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-09-21 11:25:42,277 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-09-21 11:25:42,277 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-09-21 11:25:42,277 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:25:42,277 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a20~0 1) (= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-09-21 11:25:42,277 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:25:42,277 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:25:42,277 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a21~0 ~a17~0) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1))) [2020-09-21 11:25:42,278 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-09-21 11:25:42,278 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse1 (= 5 ~a16~0))) (or (not (= |old(~a17~0)| |old(~a21~0)|)) (not (= |old(~a17~0)| 1)) (and (= ~a21~0 ~a17~0) .cse0 (<= ~a16~0 5) (= ~a20~0 1)) (= ~a16~0 6) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and .cse1 (= ~a17~0 1)) (and .cse0 (not (= ~a8~0 13)) .cse1) (= ~a16~0 4) (not (= 5 |old(~a16~0)|)))) [2020-09-21 11:25:42,278 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-09-21 11:25:42,278 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-09-21 11:25:42,278 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse1 (= 5 ~a16~0))) (or (not (= |old(~a17~0)| |old(~a21~0)|)) (not (= |old(~a17~0)| 1)) (and (= ~a21~0 ~a17~0) .cse0 (<= ~a16~0 5) (= ~a20~0 1)) (= ~a16~0 6) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and .cse1 (= ~a17~0 1)) (and .cse0 (not (= ~a8~0 13)) .cse1) (= ~a16~0 4) (not (= 5 |old(~a16~0)|)))) [2020-09-21 11:25:42,278 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-09-21 11:25:42,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:25:42 BoogieIcfgContainer [2020-09-21 11:25:42,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:25:42,321 INFO L168 Benchmark]: Toolchain (without parser) took 37137.04 ms. Allocated memory was 138.9 MB in the beginning and 720.4 MB in the end (delta: 581.4 MB). Free memory was 100.6 MB in the beginning and 654.0 MB in the end (delta: -553.5 MB). Peak memory consumption was 604.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:42,323 INFO L168 Benchmark]: CDTParser took 0.98 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:25:42,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 883.93 ms. Allocated memory was 138.9 MB in the beginning and 205.0 MB in the end (delta: 66.1 MB). Free memory was 99.9 MB in the beginning and 171.2 MB in the end (delta: -71.3 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:42,324 INFO L168 Benchmark]: Boogie Preprocessor took 161.09 ms. Allocated memory is still 205.0 MB. Free memory was 171.2 MB in the beginning and 166.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:42,331 INFO L168 Benchmark]: RCFGBuilder took 1328.92 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 166.1 MB in the beginning and 180.5 MB in the end (delta: -14.3 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:42,333 INFO L168 Benchmark]: TraceAbstraction took 34752.63 ms. Allocated memory was 237.0 MB in the beginning and 720.4 MB in the end (delta: 483.4 MB). Free memory was 179.0 MB in the beginning and 654.0 MB in the end (delta: -475.0 MB). Peak memory consumption was 584.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:25:42,338 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 883.93 ms. Allocated memory was 138.9 MB in the beginning and 205.0 MB in the end (delta: 66.1 MB). Free memory was 99.9 MB in the beginning and 171.2 MB in the end (delta: -71.3 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 161.09 ms. Allocated memory is still 205.0 MB. Free memory was 171.2 MB in the beginning and 166.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1328.92 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 166.1 MB in the beginning and 180.5 MB in the end (delta: -14.3 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34752.63 ms. Allocated memory was 237.0 MB in the beginning and 720.4 MB in the end (delta: 483.4 MB). Free memory was 179.0 MB in the beginning and 654.0 MB in the end (delta: -475.0 MB). Peak memory consumption was 584.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 572]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((!(\old(a17) == \old(a21)) || !(\old(a17) == 1)) || (((a21 == a17 && a21 == 1) && a16 <= 5) && a20 == 1)) || a16 == 6) || !(15 <= \old(a8))) || !(\old(a20) == 1)) || (5 == a16 && a17 == 1)) || ((a21 == 1 && !(a8 == 13)) && 5 == a16)) || a16 == 4) || !(5 == \old(a16)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.2s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 19.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 366 SDtfs, 4755 SDslu, 465 SDs, 0 SdLazy, 10313 SolverSat, 1746 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 115 SyntacticMatches, 4 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2832occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 2159 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 169 PreInvPairs, 213 NumberOfFragments, 375 HoareAnnotationTreeSize, 169 FomulaSimplifications, 8922371 FormulaSimplificationTreeSizeReduction, 5.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 779439 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 2515 NumberOfCodeBlocks, 2515 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2503 ConstructedInterpolants, 0 QuantifiedInterpolants, 1329137 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 1369/1463 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...