/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:27:59,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:27:59,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:27:59,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:27:59,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:27:59,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:27:59,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:27:59,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:27:59,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:27:59,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:27:59,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:27:59,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:27:59,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:27:59,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:27:59,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:27:59,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:27:59,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:27:59,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:27:59,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:27:59,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:27:59,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:27:59,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:27:59,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:27:59,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:27:59,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:27:59,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:27:59,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:27:59,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:27:59,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:27:59,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:27:59,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:27:59,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:27:59,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:27:59,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:27:59,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:27:59,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:27:59,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:27:59,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:27:59,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:27:59,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:27:59,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:27:59,383 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 [2020-09-24 19:27:59,426 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:27:59,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:27:59,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:27:59,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:27:59,429 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:27:59,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:27:59,430 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:27:59,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:27:59,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:27:59,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:27:59,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:27:59,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:27:59,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:27:59,432 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:27:59,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:27:59,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:27:59,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:27:59,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:27:59,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:27:59,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:27:59,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:27:59,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:27:59,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:27:59,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:27:59,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:27:59,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:27:59,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:27:59,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:27:59,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:27:59,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:27:59,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:27:59,939 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:27:59,944 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:27:59,946 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:27:59,946 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:27:59,948 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-09-24 19:28:00,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/846978b63/b4cc5aced1ce4616975cf5dd42db255a/FLAG174192624 [2020-09-24 19:28:00,675 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:28:00,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-09-24 19:28:00,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/846978b63/b4cc5aced1ce4616975cf5dd42db255a/FLAG174192624 [2020-09-24 19:28:00,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/846978b63/b4cc5aced1ce4616975cf5dd42db255a [2020-09-24 19:28:00,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:28:00,938 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:28:00,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:28:00,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:28:00,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:28:00,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:28:00" (1/1) ... [2020-09-24 19:28:00,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788ef5e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:28:00, skipping insertion in model container [2020-09-24 19:28:00,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:28:00" (1/1) ... [2020-09-24 19:28:00,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:28:01,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:28:01,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:28:01,583 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:28:01,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:28:01,836 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:28:01,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:28:01 WrapperNode [2020-09-24 19:28:01,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:28:01,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:28:01,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:28:01,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:28:01,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:28:01" (1/1) ... [2020-09-24 19:28:01,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:28:01" (1/1) ... [2020-09-24 19:28:01,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:28:01" (1/1) ... [2020-09-24 19:28:01,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:28:01" (1/1) ... [2020-09-24 19:28:01,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:28:01" (1/1) ... [2020-09-24 19:28:01,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:28:01" (1/1) ... [2020-09-24 19:28:01,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:28:01" (1/1) ... [2020-09-24 19:28:01,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:28:01,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:28:01,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:28:01,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:28:01,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:28:01" (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 [2020-09-24 19:28:02,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:28:02,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:28:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-24 19:28:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:28:02,059 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-24 19:28:02,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:28:02,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:28:02,060 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 19:28:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:28:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:28:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:28:03,375 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:28:03,375 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 19:28:03,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:28:03 BoogieIcfgContainer [2020-09-24 19:28:03,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:28:03,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:28:03,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:28:03,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:28:03,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:28:00" (1/3) ... [2020-09-24 19:28:03,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c04a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:28:03, skipping insertion in model container [2020-09-24 19:28:03,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:28:01" (2/3) ... [2020-09-24 19:28:03,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c04a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:28:03, skipping insertion in model container [2020-09-24 19:28:03,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:28:03" (3/3) ... [2020-09-24 19:28:03,403 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label43.c [2020-09-24 19:28:03,414 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:28:03,428 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:28:03,449 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:28:03,482 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:28:03,482 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:28:03,482 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:28:03,483 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:28:03,483 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:28:03,483 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:28:03,483 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:28:03,483 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:28:03,516 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-24 19:28:03,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-24 19:28:03,535 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:28:03,536 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] [2020-09-24 19:28:03,537 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:28:03,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:28:03,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1883432242, now seen corresponding path program 1 times [2020-09-24 19:28:03,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:28:03,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016372598] [2020-09-24 19:28:03,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:28:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:03,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:04,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:04,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:04,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:04,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:04,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:04,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 19:28:04,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:28:04,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1038 [2020-09-24 19:28:04,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:28:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 19:28:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-24 19:28:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:28:05,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:28:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:05,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:05,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:05,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 19:28:05,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:28:05,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 19:28:05,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:05,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:28:05,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:28:05,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:28:05,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:28:05,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:28:05,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016372598] [2020-09-24 19:28:05,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:28:05,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:28:05,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844911855] [2020-09-24 19:28:05,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:28:05,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:28:05,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:28:05,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:28:05,176 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 4 states. [2020-09-24 19:28:07,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:28:07,470 INFO L93 Difference]: Finished difference Result 1386 states and 1837 transitions. [2020-09-24 19:28:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:28:07,472 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2020-09-24 19:28:07,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:28:07,502 INFO L225 Difference]: With dead ends: 1386 [2020-09-24 19:28:07,503 INFO L226 Difference]: Without dead ends: 787 [2020-09-24 19:28:07,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:28:07,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-09-24 19:28:07,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 733. [2020-09-24 19:28:07,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-09-24 19:28:07,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 884 transitions. [2020-09-24 19:28:07,630 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 884 transitions. Word has length 111 [2020-09-24 19:28:07,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:28:07,631 INFO L479 AbstractCegarLoop]: Abstraction has 733 states and 884 transitions. [2020-09-24 19:28:07,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:28:07,632 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 884 transitions. [2020-09-24 19:28:07,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-24 19:28:07,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:28:07,648 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 19:28:07,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:28:07,648 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:28:07,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:28:07,649 INFO L82 PathProgramCache]: Analyzing trace with hash -184227746, now seen corresponding path program 1 times [2020-09-24 19:28:07,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:28:07,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1002412962] [2020-09-24 19:28:07,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:28:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:07,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:08,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:08,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-24 19:28:08,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:28:08,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 478 [2020-09-24 19:28:08,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:08,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:28:08,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 19:28:08,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 19:28:08,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:28:08,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:28:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:08,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:08,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:08,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 19:28:08,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:28:08,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 19:28:08,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:28:08,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:28:08,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:28:08,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:28:08,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:28:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:08,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:08,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:08,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:28:08,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:28:08,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 19:28:08,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:28:08,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:28:08,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 19:28:08,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:28:08,440 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:28:08,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1002412962] [2020-09-24 19:28:08,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:28:08,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:28:08,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039113681] [2020-09-24 19:28:08,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:28:08,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:28:08,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:28:08,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:28:08,445 INFO L87 Difference]: Start difference. First operand 733 states and 884 transitions. Second operand 7 states. [2020-09-24 19:28:10,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:28:10,695 INFO L93 Difference]: Finished difference Result 1821 states and 2290 transitions. [2020-09-24 19:28:10,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:28:10,695 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 129 [2020-09-24 19:28:10,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:28:10,703 INFO L225 Difference]: With dead ends: 1821 [2020-09-24 19:28:10,704 INFO L226 Difference]: Without dead ends: 1110 [2020-09-24 19:28:10,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:28:10,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2020-09-24 19:28:10,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1048. [2020-09-24 19:28:10,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2020-09-24 19:28:10,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1236 transitions. [2020-09-24 19:28:10,761 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1236 transitions. Word has length 129 [2020-09-24 19:28:10,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:28:10,762 INFO L479 AbstractCegarLoop]: Abstraction has 1048 states and 1236 transitions. [2020-09-24 19:28:10,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:28:10,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1236 transitions. [2020-09-24 19:28:10,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-24 19:28:10,767 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:28:10,768 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-24 19:28:10,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:28:10,768 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:28:10,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:28:10,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1044088891, now seen corresponding path program 1 times [2020-09-24 19:28:10,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:28:10,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362575729] [2020-09-24 19:28:10,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:28:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:10,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:11,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:11,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-24 19:28:11,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:28:11,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-09-24 19:28:11,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:11,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:28:11,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-24 19:28:11,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:28:11,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:28:11,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:28:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:11,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:11,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:11,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 19:28:11,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:28:11,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:28:11,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:28:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:28:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:28:11,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:28:11,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:28:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:11,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:11,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:11,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 19:28:11,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:28:11,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:28:11,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:11,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:28:11,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:28:11,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:28:11,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:28:11,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 19:28:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:11,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:11,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:11,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:28:11,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:28:11,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 19:28:11,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:11,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:28:11,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:28:11,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 19:28:11,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:28:11,495 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:28:11,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362575729] [2020-09-24 19:28:11,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:28:11,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:28:11,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306127455] [2020-09-24 19:28:11,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:28:11,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:28:11,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:28:11,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:28:11,500 INFO L87 Difference]: Start difference. First operand 1048 states and 1236 transitions. Second operand 8 states. [2020-09-24 19:28:14,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:28:14,438 INFO L93 Difference]: Finished difference Result 2462 states and 3019 transitions. [2020-09-24 19:28:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:28:14,438 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 146 [2020-09-24 19:28:14,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:28:14,448 INFO L225 Difference]: With dead ends: 2462 [2020-09-24 19:28:14,448 INFO L226 Difference]: Without dead ends: 1436 [2020-09-24 19:28:14,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:28:14,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2020-09-24 19:28:14,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1370. [2020-09-24 19:28:14,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1370 states. [2020-09-24 19:28:14,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1625 transitions. [2020-09-24 19:28:14,511 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1625 transitions. Word has length 146 [2020-09-24 19:28:14,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:28:14,512 INFO L479 AbstractCegarLoop]: Abstraction has 1370 states and 1625 transitions. [2020-09-24 19:28:14,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:28:14,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1625 transitions. [2020-09-24 19:28:14,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-24 19:28:14,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:28:14,522 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-24 19:28:14,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:28:14,523 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:28:14,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:28:14,524 INFO L82 PathProgramCache]: Analyzing trace with hash -584227059, now seen corresponding path program 1 times [2020-09-24 19:28:14,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:28:14,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20923459] [2020-09-24 19:28:14,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:28:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:14,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:14,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:15,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:15,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-09-24 19:28:15,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:28:15,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:28:15,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:15,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:28:15,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-24 19:28:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 19:28:15,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:28:15,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:28:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:15,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:15,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:15,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 19:28:15,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:28:15,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:28:15,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:15,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:28:15,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:28:15,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:28:15,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:28:15,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:28:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:15,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:15,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:15,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 19:28:15,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:28:15,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 19:28:15,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:15,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:28:15,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:28:15,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:28:15,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:28:15,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 19:28:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:15,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:15,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:15,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:28:15,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:28:15,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 19:28:15,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:28:15,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:28:15,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 19:28:15,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:28:15,906 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:28:15,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20923459] [2020-09-24 19:28:15,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:28:15,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:28:15,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342958712] [2020-09-24 19:28:15,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:28:15,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:28:15,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:28:15,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:28:15,915 INFO L87 Difference]: Start difference. First operand 1370 states and 1625 transitions. Second operand 7 states. [2020-09-24 19:28:18,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:28:18,833 INFO L93 Difference]: Finished difference Result 4770 states and 6306 transitions. [2020-09-24 19:28:18,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:28:18,834 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 158 [2020-09-24 19:28:18,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:28:18,859 INFO L225 Difference]: With dead ends: 4770 [2020-09-24 19:28:18,860 INFO L226 Difference]: Without dead ends: 3422 [2020-09-24 19:28:18,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:28:18,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3422 states. [2020-09-24 19:28:18,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3422 to 3354. [2020-09-24 19:28:18,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3354 states. [2020-09-24 19:28:19,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3354 states to 3354 states and 4167 transitions. [2020-09-24 19:28:19,010 INFO L78 Accepts]: Start accepts. Automaton has 3354 states and 4167 transitions. Word has length 158 [2020-09-24 19:28:19,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:28:19,011 INFO L479 AbstractCegarLoop]: Abstraction has 3354 states and 4167 transitions. [2020-09-24 19:28:19,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:28:19,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3354 states and 4167 transitions. [2020-09-24 19:28:19,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:28:19,024 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:28:19,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:28:19,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:28:19,025 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:28:19,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:28:19,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1465769009, now seen corresponding path program 1 times [2020-09-24 19:28:19,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:28:19,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320722609] [2020-09-24 19:28:19,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:28:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:19,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:19,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:19,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:20,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:20,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 19:28:20,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:28:20,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-09-24 19:28:20,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:20,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:28:20,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-24 19:28:20,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:28:20,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:28:20,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:28:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:20,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:20,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:20,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 19:28:20,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:28:20,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:28:20,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:28:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:28:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:28:20,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:28:20,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:28:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:20,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:20,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:20,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 19:28:20,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:28:20,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 19:28:20,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:20,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:28:20,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:28:20,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 19:28:20,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:28:20,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 19:28:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:28:20,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:28:20,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:28:20,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 19:28:20,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:28:20,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 19:28:20,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:28:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:28:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:28:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 19:28:20,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:28:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:28:20,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [320722609] [2020-09-24 19:28:20,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:28:20,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:28:20,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53985973] [2020-09-24 19:28:20,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:28:20,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:28:20,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:28:20,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:28:20,381 INFO L87 Difference]: Start difference. First operand 3354 states and 4167 transitions. Second operand 8 states. [2020-09-24 19:28:23,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:28:23,330 INFO L93 Difference]: Finished difference Result 7685 states and 9958 transitions. [2020-09-24 19:28:23,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:28:23,336 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-09-24 19:28:23,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:28:23,361 INFO L225 Difference]: With dead ends: 7685 [2020-09-24 19:28:23,361 INFO L226 Difference]: Without dead ends: 4363 [2020-09-24 19:28:23,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:28:23,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4363 states. [2020-09-24 19:28:23,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4363 to 4314. [2020-09-24 19:28:23,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4314 states. [2020-09-24 19:28:23,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4314 states to 4314 states and 5436 transitions. [2020-09-24 19:28:23,502 INFO L78 Accepts]: Start accepts. Automaton has 4314 states and 5436 transitions. Word has length 161 [2020-09-24 19:28:23,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:28:23,503 INFO L479 AbstractCegarLoop]: Abstraction has 4314 states and 5436 transitions. [2020-09-24 19:28:23,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:28:23,504 INFO L276 IsEmpty]: Start isEmpty. Operand 4314 states and 5436 transitions. [2020-09-24 19:28:23,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 19:28:23,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:28:23,519 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:28:23,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:28:23,520 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:28:23,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:28:23,520 INFO L82 PathProgramCache]: Analyzing trace with hash -523474928, now seen corresponding path program 1 times [2020-09-24 19:28:23,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:28:23,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601986725] [2020-09-24 19:28:23,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:28:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:28:23,582 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:28:23,582 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:28:23,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:28:23,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:28:23 BoogieIcfgContainer [2020-09-24 19:28:23,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:28:23,649 INFO L168 Benchmark]: Toolchain (without parser) took 22712.02 ms. Allocated memory was 140.5 MB in the beginning and 514.9 MB in the end (delta: 374.3 MB). Free memory was 100.8 MB in the beginning and 357.6 MB in the end (delta: -256.8 MB). Peak memory consumption was 117.5 MB. Max. memory is 7.1 GB. [2020-09-24 19:28:23,650 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 19:28:23,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 900.73 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 171.0 MB in the end (delta: -70.8 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2020-09-24 19:28:23,657 INFO L168 Benchmark]: Boogie Preprocessor took 132.72 ms. Allocated memory is still 203.9 MB. Free memory was 171.0 MB in the beginning and 165.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-09-24 19:28:23,658 INFO L168 Benchmark]: RCFGBuilder took 1419.42 ms. Allocated memory was 203.9 MB in the beginning and 238.0 MB in the end (delta: 34.1 MB). Free memory was 165.6 MB in the beginning and 160.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:28:23,659 INFO L168 Benchmark]: TraceAbstraction took 20250.69 ms. Allocated memory was 238.0 MB in the beginning and 514.9 MB in the end (delta: 276.8 MB). Free memory was 160.5 MB in the beginning and 357.6 MB in the end (delta: -197.1 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:28:23,672 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 900.73 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 171.0 MB in the end (delta: -70.8 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.72 ms. Allocated memory is still 203.9 MB. Free memory was 171.0 MB in the beginning and 165.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1419.42 ms. Allocated memory was 203.9 MB in the beginning and 238.0 MB in the end (delta: 34.1 MB). Free memory was 165.6 MB in the beginning and 160.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20250.69 ms. Allocated memory was 238.0 MB in the beginning and 514.9 MB in the end (delta: 276.8 MB). Free memory was 160.5 MB in the beginning and 357.6 MB in the end (delta: -197.1 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 427]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int a= 1; [L8] int e= 5; [L9] int d= 4; [L10] int f= 6; [L11] int c= 3; [L14] int u = 21; [L15] int v = 22; [L16] int w = 23; [L17] int x = 24; [L18] int y = 25; [L19] int z = 26; [L22] int a25 = 0; [L23] int a11 = 0; [L24] int a28 = 7; [L25] int a19 = 1; [L26] int a21 = 1; [L27] int a17 = 8; [L603] int output = -1; [L606] COND TRUE 1 [L609] int input; [L610] input = __VERIFIER_nondet_int() [L611] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L614] CALL, EXPR calculate_output(input) [L30] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L35] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L38] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L42] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L47] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L50] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L54] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L59] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L65] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L69] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L74] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L82] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L91] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L95] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L99] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L106] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L113] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L119] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L123] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L130] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L134] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L139] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L143] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L148] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L154] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L159] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L165] COND TRUE (((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1)) [L166] a25 = 1 [L167] a28 = 9 [L168] return 26; [L614] RET, EXPR calculate_output(input) [L614] output = calculate_output(input) [L606] COND TRUE 1 [L609] int input; [L610] input = __VERIFIER_nondet_int() [L611] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L614] CALL, EXPR calculate_output(input) [L30] COND TRUE (((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8)) [L31] a28 = 9 [L32] a11 = 1 [L33] a25 = 1 [L34] return -1; [L614] RET, EXPR calculate_output(input) [L614] output = calculate_output(input) [L606] COND TRUE 1 [L609] int input; [L610] input = __VERIFIER_nondet_int() [L611] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L614] CALL calculate_output(input) [L30] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L35] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L38] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L42] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L47] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L50] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L54] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L59] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L65] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L69] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L74] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L82] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L91] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L95] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L99] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L106] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L113] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L119] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L123] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L130] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L134] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L139] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L143] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L148] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L154] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L159] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L165] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L169] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L175] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L179] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L185] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L187] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L189] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L191] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L194] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L198] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L202] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L212] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L215] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L218] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L223] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L225] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L232] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L234] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L237] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L248] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L253] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L259] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L261] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L276] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L280] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L283] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L286] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L291] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L293] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L297] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L309] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L314] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L328] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L331] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L337] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L349] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L354] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L361] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L368] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L375] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L378] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L380] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L389] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L394] COND FALSE !((((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1))) [L398] COND FALSE !((((a17==8)&&((((input==4)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9))))&&(a21==1))&&!(a19==1)))&&!(a11==1))) [L402] COND FALSE !((((!(a11==1)&&((((a19==1)&&(input==5))&&(a17==8))&&(a21==1)))&&(a28==9))&&!(a25==1))) [L404] COND FALSE !((((a11==1)&&((a19==1)&&((a21==1)&&(((a17==9)&&(input==5))&&!(a25==1)))))&&(a28==8))) [L407] COND FALSE !((!(a11==1)&&((a21==1)&&(((a19==1)&&((a17==8)&&((a25==1)&&(input==5))))&&(a28==11))))) [L409] COND FALSE !(((a19==1)&&((a17==8)&&(((((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))&&!(a11==1))&&(a21==1))))) [L414] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==8))) [L417] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8))) [L420] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L423] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L426] COND TRUE ((((((a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8)) [L427] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 527 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.1s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1712 SDtfs, 5511 SDslu, 2276 SDs, 0 SdLazy, 7899 SolverSat, 770 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4314occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 299 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 877 NumberOfCodeBlocks, 877 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 700 ConstructedInterpolants, 0 QuantifiedInterpolants, 229948 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 128/134 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 incorrect! Received shutdown request...