/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 00:43:45,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 00:43:45,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 00:43:45,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 00:43:45,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 00:43:45,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 00:43:45,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 00:43:45,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 00:43:45,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 00:43:45,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 00:43:45,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 00:43:45,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 00:43:45,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 00:43:45,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 00:43:45,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 00:43:45,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 00:43:45,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 00:43:45,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 00:43:45,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 00:43:45,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 00:43:45,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 00:43:45,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 00:43:45,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 00:43:45,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 00:43:45,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 00:43:45,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 00:43:45,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 00:43:45,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 00:43:45,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 00:43:45,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 00:43:45,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 00:43:45,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 00:43:45,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 00:43:45,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 00:43:45,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 00:43:45,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 00:43:45,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 00:43:45,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 00:43:45,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 00:43:45,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 00:43:45,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 00:43:45,262 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 00:43:45,286 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 00:43:45,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 00:43:45,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 00:43:45,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 00:43:45,288 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 00:43:45,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 00:43:45,289 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 00:43:45,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 00:43:45,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 00:43:45,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 00:43:45,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 00:43:45,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 00:43:45,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 00:43:45,290 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 00:43:45,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 00:43:45,290 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 00:43:45,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 00:43:45,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 00:43:45,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 00:43:45,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 00:43:45,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 00:43:45,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:43:45,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 00:43:45,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 00:43:45,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 00:43:45,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 00:43:45,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 00:43:45,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 00:43:45,293 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 00:43:45,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 00:43:45,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 00:43:45,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 00:43:45,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 00:43:45,680 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 00:43:45,681 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 00:43:45,681 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-10-14 00:43:45,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09096d9d0/74a59f0061ea453a808b07d89221342a/FLAG32dade387 [2020-10-14 00:43:46,355 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 00:43:46,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-10-14 00:43:46,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09096d9d0/74a59f0061ea453a808b07d89221342a/FLAG32dade387 [2020-10-14 00:43:46,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09096d9d0/74a59f0061ea453a808b07d89221342a [2020-10-14 00:43:46,624 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 00:43:46,626 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 00:43:46,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 00:43:46,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 00:43:46,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 00:43:46,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:43:46" (1/1) ... [2020-10-14 00:43:46,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e37eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:46, skipping insertion in model container [2020-10-14 00:43:46,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:43:46" (1/1) ... [2020-10-14 00:43:46,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 00:43:46,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 00:43:47,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:43:47,112 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 00:43:47,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:43:47,449 INFO L208 MainTranslator]: Completed translation [2020-10-14 00:43:47,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:47 WrapperNode [2020-10-14 00:43:47,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 00:43:47,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 00:43:47,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 00:43:47,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 00:43:47,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:47" (1/1) ... [2020-10-14 00:43:47,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:47" (1/1) ... [2020-10-14 00:43:47,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:47" (1/1) ... [2020-10-14 00:43:47,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:47" (1/1) ... [2020-10-14 00:43:47,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:47" (1/1) ... [2020-10-14 00:43:47,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:47" (1/1) ... [2020-10-14 00:43:47,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:47" (1/1) ... [2020-10-14 00:43:47,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 00:43:47,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 00:43:47,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 00:43:47,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 00:43:47,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:43:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 00:43:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 00:43:47,697 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 00:43:47,697 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 00:43:47,697 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 00:43:47,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 00:43:47,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 00:43:47,698 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 00:43:47,698 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 00:43:47,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 00:43:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 00:43:48,895 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 00:43:48,895 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 00:43:48,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:43:48 BoogieIcfgContainer [2020-10-14 00:43:48,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 00:43:48,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 00:43:48,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 00:43:48,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 00:43:48,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:43:46" (1/3) ... [2020-10-14 00:43:48,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4f33e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:43:48, skipping insertion in model container [2020-10-14 00:43:48,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:43:47" (2/3) ... [2020-10-14 00:43:48,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4f33e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:43:48, skipping insertion in model container [2020-10-14 00:43:48,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:43:48" (3/3) ... [2020-10-14 00:43:48,910 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label41.c [2020-10-14 00:43:48,922 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 00:43:48,930 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 00:43:48,946 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 00:43:48,972 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 00:43:48,972 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 00:43:48,972 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 00:43:48,973 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 00:43:48,973 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 00:43:48,973 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 00:43:48,973 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 00:43:48,973 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 00:43:48,996 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-14 00:43:49,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 00:43:49,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:49,008 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] [2020-10-14 00:43:49,008 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:49,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:49,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1692915649, now seen corresponding path program 1 times [2020-10-14 00:43:49,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:49,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041557878] [2020-10-14 00:43:49,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:49,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:49,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:50,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:50,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 00:43:50,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:43:50,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1489 [2020-10-14 00:43:50,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:50,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:50,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 00:43:50,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:43:50,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 00:43:50,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 00:43:50,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:50,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:50,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:50,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:50,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:50,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 00:43:50,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:50,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:50,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:50,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:50,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:43:50,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:51,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:43:51,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041557878] [2020-10-14 00:43:51,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:43:51,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 00:43:51,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748937227] [2020-10-14 00:43:51,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:43:51,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:51,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:43:51,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:43:51,080 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-10-14 00:43:52,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:52,912 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-10-14 00:43:52,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:43:52,915 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-10-14 00:43:52,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:52,945 INFO L225 Difference]: With dead ends: 557 [2020-10-14 00:43:52,945 INFO L226 Difference]: Without dead ends: 286 [2020-10-14 00:43:52,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:43:52,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-14 00:43:53,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-10-14 00:43:53,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-14 00:43:53,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 402 transitions. [2020-10-14 00:43:53,098 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 402 transitions. Word has length 91 [2020-10-14 00:43:53,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:53,100 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 402 transitions. [2020-10-14 00:43:53,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:43:53,100 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 402 transitions. [2020-10-14 00:43:53,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 00:43:53,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:53,117 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:43:53,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 00:43:53,119 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:53,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:53,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1768869960, now seen corresponding path program 1 times [2020-10-14 00:43:53,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:53,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120966002] [2020-10-14 00:43:53,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:53,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:53,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:53,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:53,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 00:43:53,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:43:53,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 757 [2020-10-14 00:43:53,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:53,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 00:43:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 00:43:53,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:43:54,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:54,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:54,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:54,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:54,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:54,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:43:54,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:54,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:54,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:54,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:43:54,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:54,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:54,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:54,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:43:54,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:54,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 00:43:54,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:54,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:54,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:54,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:54,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 00:43:54,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 00:43:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:43:54,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2120966002] [2020-10-14 00:43:54,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:54,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:43:54,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271082326] [2020-10-14 00:43:54,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:43:54,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:54,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:43:54,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:43:54,217 INFO L87 Difference]: Start difference. First operand 280 states and 402 transitions. Second operand 5 states. [2020-10-14 00:43:55,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:55,337 INFO L93 Difference]: Finished difference Result 834 states and 1221 transitions. [2020-10-14 00:43:55,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:43:55,338 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2020-10-14 00:43:55,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:55,344 INFO L225 Difference]: With dead ends: 834 [2020-10-14 00:43:55,344 INFO L226 Difference]: Without dead ends: 560 [2020-10-14 00:43:55,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:43:55,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-14 00:43:55,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 556. [2020-10-14 00:43:55,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-14 00:43:55,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 731 transitions. [2020-10-14 00:43:55,387 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 731 transitions. Word has length 101 [2020-10-14 00:43:55,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:55,387 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 731 transitions. [2020-10-14 00:43:55,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:43:55,388 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 731 transitions. [2020-10-14 00:43:55,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 00:43:55,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:55,391 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 00:43:55,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 00:43:55,392 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:55,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:55,393 INFO L82 PathProgramCache]: Analyzing trace with hash -241000616, now seen corresponding path program 1 times [2020-10-14 00:43:55,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:55,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080577082] [2020-10-14 00:43:55,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:55,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:55,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:57,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:57,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:58,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:58,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 00:43:58,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:43:58,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3520 [2020-10-14 00:43:58,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:58,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 00:43:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 00:43:58,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:59,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:59,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:59,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:59,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:59,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:59,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:43:59,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:59,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:59,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:59,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:59,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:59,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:59,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:59,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:59,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 00:43:59,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:59,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 00:43:59,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:59,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:59,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:59,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:59,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 00:43:59,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:59,122 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:43:59,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080577082] [2020-10-14 00:43:59,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:59,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:43:59,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570411163] [2020-10-14 00:43:59,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:43:59,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:59,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:43:59,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:43:59,124 INFO L87 Difference]: Start difference. First operand 556 states and 731 transitions. Second operand 5 states. [2020-10-14 00:44:00,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:44:00,315 INFO L93 Difference]: Finished difference Result 1384 states and 1889 transitions. [2020-10-14 00:44:00,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:44:00,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-14 00:44:00,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:44:00,327 INFO L225 Difference]: With dead ends: 1384 [2020-10-14 00:44:00,327 INFO L226 Difference]: Without dead ends: 834 [2020-10-14 00:44:00,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:44:00,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-10-14 00:44:00,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 830. [2020-10-14 00:44:00,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2020-10-14 00:44:00,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1101 transitions. [2020-10-14 00:44:00,365 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1101 transitions. Word has length 109 [2020-10-14 00:44:00,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:44:00,365 INFO L479 AbstractCegarLoop]: Abstraction has 830 states and 1101 transitions. [2020-10-14 00:44:00,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:44:00,366 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1101 transitions. [2020-10-14 00:44:00,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-14 00:44:00,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:44:00,369 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:44:00,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 00:44:00,370 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:44:00,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:44:00,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1171629714, now seen corresponding path program 1 times [2020-10-14 00:44:00,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:44:00,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002162014] [2020-10-14 00:44:00,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:44:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:00,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:00,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:01,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:02,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:03,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:03,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 00:44:03,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:44:03,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2954 [2020-10-14 00:44:03,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:03,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:03,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:44:03,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 00:44:03,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 00:44:03,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:03,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:44:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:03,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:03,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:03,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:44:03,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:03,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:44:03,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:03,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:03,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:44:03,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:03,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:44:03,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:03,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:44:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:03,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:03,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:03,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 00:44:03,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:03,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 00:44:03,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:03,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:03,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:44:03,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:03,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 00:44:03,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:03,558 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:44:03,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002162014] [2020-10-14 00:44:03,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:44:03,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:44:03,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848000437] [2020-10-14 00:44:03,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:44:03,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:44:03,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:44:03,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:44:03,563 INFO L87 Difference]: Start difference. First operand 830 states and 1101 transitions. Second operand 5 states. [2020-10-14 00:44:04,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:44:04,742 INFO L93 Difference]: Finished difference Result 2206 states and 2986 transitions. [2020-10-14 00:44:04,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:44:04,743 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2020-10-14 00:44:04,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:44:04,755 INFO L225 Difference]: With dead ends: 2206 [2020-10-14 00:44:04,756 INFO L226 Difference]: Without dead ends: 1382 [2020-10-14 00:44:04,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:44:04,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2020-10-14 00:44:04,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 834. [2020-10-14 00:44:04,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2020-10-14 00:44:04,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1056 transitions. [2020-10-14 00:44:04,805 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1056 transitions. Word has length 122 [2020-10-14 00:44:04,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:44:04,805 INFO L479 AbstractCegarLoop]: Abstraction has 834 states and 1056 transitions. [2020-10-14 00:44:04,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:44:04,806 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1056 transitions. [2020-10-14 00:44:04,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-14 00:44:04,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:44:04,809 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 00:44:04,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 00:44:04,810 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:44:04,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:44:04,810 INFO L82 PathProgramCache]: Analyzing trace with hash 2004252269, now seen corresponding path program 1 times [2020-10-14 00:44:04,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:44:04,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243083745] [2020-10-14 00:44:04,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:44:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:04,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:04,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:05,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:07,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:07,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:07,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:09,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:09,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 00:44:09,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 00:44:09,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4266 [2020-10-14 00:44:09,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:09,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:09,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:44:09,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-14 00:44:09,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 00:44:09,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:09,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:44:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:09,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:09,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:09,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:44:09,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:09,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:44:09,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:09,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:09,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:44:09,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:09,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:44:09,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:09,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:44:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:09,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:09,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:09,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:44:09,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:09,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:44:09,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:09,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:09,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:44:09,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:09,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:44:09,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:09,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 00:44:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:09,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:09,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:09,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 00:44:09,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:09,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 00:44:09,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:09,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:09,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:44:09,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:09,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 00:44:09,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:09,275 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 00:44:09,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243083745] [2020-10-14 00:44:09,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:44:09,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:44:09,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131600324] [2020-10-14 00:44:09,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:44:09,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:44:09,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:44:09,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:44:09,278 INFO L87 Difference]: Start difference. First operand 834 states and 1056 transitions. Second operand 5 states. [2020-10-14 00:44:10,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:44:10,269 INFO L93 Difference]: Finished difference Result 2353 states and 3059 transitions. [2020-10-14 00:44:10,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:44:10,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2020-10-14 00:44:10,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:44:10,282 INFO L225 Difference]: With dead ends: 2353 [2020-10-14 00:44:10,282 INFO L226 Difference]: Without dead ends: 1525 [2020-10-14 00:44:10,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:44:10,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1525 states. [2020-10-14 00:44:10,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1525 to 1519. [2020-10-14 00:44:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1519 states. [2020-10-14 00:44:10,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 1904 transitions. [2020-10-14 00:44:10,352 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 1904 transitions. Word has length 125 [2020-10-14 00:44:10,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:44:10,353 INFO L479 AbstractCegarLoop]: Abstraction has 1519 states and 1904 transitions. [2020-10-14 00:44:10,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:44:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 1904 transitions. [2020-10-14 00:44:10,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 00:44:10,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:44:10,360 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:44:10,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 00:44:10,360 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:44:10,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:44:10,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1829198748, now seen corresponding path program 1 times [2020-10-14 00:44:10,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:44:10,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741054834] [2020-10-14 00:44:10,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:44:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:10,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:10,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:11,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:11,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:12,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:12,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 00:44:12,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:44:12,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2237 [2020-10-14 00:44:12,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:12,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:12,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:44:12,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 00:44:12,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 00:44:12,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:12,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:44:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:12,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:12,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:12,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:44:12,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:12,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:44:12,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:12,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:12,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:44:12,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:12,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:44:12,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:12,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:44:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:12,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:12,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:12,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:44:12,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:12,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:44:12,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:12,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:12,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:44:12,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:12,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:44:12,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:12,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 00:44:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:12,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:12,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:12,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 00:44:12,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:12,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:44:12,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:12,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:12,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:44:12,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:12,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:44:12,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:12,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 00:44:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:12,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:12,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:12,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 00:44:12,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:12,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 00:44:12,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:12,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:12,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:44:12,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:12,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 00:44:12,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:12,857 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 60 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 00:44:12,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741054834] [2020-10-14 00:44:12,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:44:12,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:44:12,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510526786] [2020-10-14 00:44:12,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:44:12,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:44:12,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:44:12,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:44:12,859 INFO L87 Difference]: Start difference. First operand 1519 states and 1904 transitions. Second operand 5 states. [2020-10-14 00:44:14,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:44:14,043 INFO L93 Difference]: Finished difference Result 3995 states and 5122 transitions. [2020-10-14 00:44:14,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:44:14,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-10-14 00:44:14,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:44:14,063 INFO L225 Difference]: With dead ends: 3995 [2020-10-14 00:44:14,063 INFO L226 Difference]: Without dead ends: 2482 [2020-10-14 00:44:14,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:44:14,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states. [2020-10-14 00:44:14,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 2478. [2020-10-14 00:44:14,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2478 states. [2020-10-14 00:44:14,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2478 states to 2478 states and 3057 transitions. [2020-10-14 00:44:14,149 INFO L78 Accepts]: Start accepts. Automaton has 2478 states and 3057 transitions. Word has length 157 [2020-10-14 00:44:14,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:44:14,150 INFO L479 AbstractCegarLoop]: Abstraction has 2478 states and 3057 transitions. [2020-10-14 00:44:14,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:44:14,150 INFO L276 IsEmpty]: Start isEmpty. Operand 2478 states and 3057 transitions. [2020-10-14 00:44:14,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-14 00:44:14,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:44:14,158 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 00:44:14,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 00:44:14,159 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:44:14,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:44:14,159 INFO L82 PathProgramCache]: Analyzing trace with hash 152592045, now seen corresponding path program 1 times [2020-10-14 00:44:14,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:44:14,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833451560] [2020-10-14 00:44:14,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:44:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:14,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:14,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:14,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:15,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:15,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:15,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 00:44:15,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:44:15,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1424 [2020-10-14 00:44:15,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:15,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:44:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 00:44:15,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 00:44:15,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:15,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:44:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:15,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:15,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:15,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:44:15,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:15,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:44:15,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:15,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:15,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:44:15,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:15,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:44:15,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:15,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:44:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:15,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:15,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:15,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:44:15,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:15,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:44:15,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:15,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:15,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:44:15,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:15,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:44:15,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:44:15,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 00:44:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:44:15,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:44:15,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:44:15,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 00:44:15,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:44:15,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 00:44:15,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:44:15,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:44:15,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:44:15,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:44:15,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 00:44:15,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:44:15,865 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 00:44:15,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833451560] [2020-10-14 00:44:15,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:44:15,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:44:15,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123056414] [2020-10-14 00:44:15,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:44:15,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:44:15,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:44:15,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:44:15,868 INFO L87 Difference]: Start difference. First operand 2478 states and 3057 transitions. Second operand 5 states. [2020-10-14 00:44:17,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:44:17,170 INFO L93 Difference]: Finished difference Result 5355 states and 6626 transitions. [2020-10-14 00:44:17,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:44:17,172 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-10-14 00:44:17,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:44:17,173 INFO L225 Difference]: With dead ends: 5355 [2020-10-14 00:44:17,173 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 00:44:17,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:44:17,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 00:44:17,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 00:44:17,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 00:44:17,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 00:44:17,186 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2020-10-14 00:44:17,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:44:17,186 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 00:44:17,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:44:17,186 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 00:44:17,187 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 00:44:17,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 00:44:17,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 00:44:17,596 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 78 [2020-10-14 00:44:18,074 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 46 [2020-10-14 00:44:18,243 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 00:44:18,244 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-14 00:44:18,244 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 00:44:18,244 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-14 00:44:18,244 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-14 00:44:18,244 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,244 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,245 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,245 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,245 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,245 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,245 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-14 00:44:18,245 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-14 00:44:18,245 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-14 00:44:18,246 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-14 00:44:18,246 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-14 00:44:18,246 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-14 00:44:18,246 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-14 00:44:18,246 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-14 00:44:18,246 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-14 00:44:18,246 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-14 00:44:18,246 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,246 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,247 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,247 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,247 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,247 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,247 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-14 00:44:18,247 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-14 00:44:18,247 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-14 00:44:18,248 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-14 00:44:18,248 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-14 00:44:18,248 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-14 00:44:18,248 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-14 00:44:18,248 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-14 00:44:18,248 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-14 00:44:18,248 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-14 00:44:18,248 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-14 00:44:18,249 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 431) no Hoare annotation was computed. [2020-10-14 00:44:18,249 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-14 00:44:18,249 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-14 00:44:18,249 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-14 00:44:18,249 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-14 00:44:18,249 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,249 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,250 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,250 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,250 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,250 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-14 00:44:18,250 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-14 00:44:18,250 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-14 00:44:18,250 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-14 00:44:18,250 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-14 00:44:18,251 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-14 00:44:18,251 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-14 00:44:18,251 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-14 00:44:18,251 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-14 00:44:18,251 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,251 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,251 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,251 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,252 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,252 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-14 00:44:18,252 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-14 00:44:18,252 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-14 00:44:18,252 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-14 00:44:18,252 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-14 00:44:18,252 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-14 00:44:18,252 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-14 00:44:18,253 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-14 00:44:18,253 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-14 00:44:18,253 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-14 00:44:18,253 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-14 00:44:18,253 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-14 00:44:18,253 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-14 00:44:18,253 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,254 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,254 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,254 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,254 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,254 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-14 00:44:18,254 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-14 00:44:18,254 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-14 00:44:18,254 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-14 00:44:18,254 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-14 00:44:18,255 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-14 00:44:18,255 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-14 00:44:18,255 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-14 00:44:18,255 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-14 00:44:18,255 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,255 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,255 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,256 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,256 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,256 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,256 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-14 00:44:18,256 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,256 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-14 00:44:18,256 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-14 00:44:18,256 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-14 00:44:18,257 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-14 00:44:18,257 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-14 00:44:18,257 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-14 00:44:18,257 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-14 00:44:18,257 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-14 00:44:18,257 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-14 00:44:18,257 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-14 00:44:18,257 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-14 00:44:18,257 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-14 00:44:18,258 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-14 00:44:18,258 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,258 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,258 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,258 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,258 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,258 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-14 00:44:18,258 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-14 00:44:18,259 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-14 00:44:18,259 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-14 00:44:18,259 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-14 00:44:18,259 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-14 00:44:18,259 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-14 00:44:18,259 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-14 00:44:18,259 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,260 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,260 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,260 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,260 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,260 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-14 00:44:18,260 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-14 00:44:18,260 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-14 00:44:18,260 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-14 00:44:18,260 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-14 00:44:18,261 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-14 00:44:18,261 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-14 00:44:18,261 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-14 00:44:18,261 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-14 00:44:18,261 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-14 00:44:18,261 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse4 (= ~a16~0 |old(~a16~0)|)) (.cse5 (= ~a8~0 |old(~a8~0)|))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a8~0 15)) (not (= 15 |old(~a8~0)|))) (or (= |old(~a17~0)| |old(~a21~0)|) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5)) (or (not (= |old(~a20~0)| |old(~a21~0)|)) (not (<= 1 |old(~a20~0)|)) (and .cse0 .cse1 .cse3 .cse4 .cse5 (= ~a21~0 ~a20~0)) (not (<= |old(~a20~0)| 1))) (or (not (= |old(~a7~0)| 1)) (and .cse1 .cse2 .cse3 .cse4 .cse5 (= ~a17~0 0)) (not (= 0 |old(~a17~0)|))))) [2020-10-14 00:44:18,262 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-14 00:44:18,262 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,262 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,262 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,262 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,262 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-14 00:44:18,262 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,262 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,262 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-14 00:44:18,263 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-14 00:44:18,263 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-14 00:44:18,263 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-14 00:44:18,263 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-14 00:44:18,263 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-14 00:44:18,263 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-14 00:44:18,263 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-14 00:44:18,263 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-14 00:44:18,264 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-14 00:44:18,264 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-14 00:44:18,264 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-14 00:44:18,264 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,264 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,264 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,264 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,264 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,264 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-14 00:44:18,265 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,265 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-14 00:44:18,265 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-14 00:44:18,265 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-14 00:44:18,265 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-14 00:44:18,265 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-14 00:44:18,265 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-14 00:44:18,265 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-14 00:44:18,266 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-14 00:44:18,266 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-14 00:44:18,266 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-14 00:44:18,266 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-14 00:44:18,266 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-14 00:44:18,266 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-14 00:44:18,266 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-14 00:44:18,267 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,267 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,267 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,267 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,267 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,267 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-14 00:44:18,267 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-14 00:44:18,267 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-14 00:44:18,268 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-14 00:44:18,268 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-14 00:44:18,268 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-14 00:44:18,268 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-14 00:44:18,268 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-14 00:44:18,268 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-14 00:44:18,268 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-14 00:44:18,268 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-14 00:44:18,268 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 00:44:18,269 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (= ~a8~0 15) (= ~a21~0 ~a20~0) (<= ~a20~0 1) (<= 5 ~a16~0)) [2020-10-14 00:44:18,269 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 00:44:18,269 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 00:44:18,269 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 15) (= ~a21~0 ~a20~0)) (not (<= 5 |old(~a16~0)|)) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (<= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a20~0)| 1))) [2020-10-14 00:44:18,269 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-14 00:44:18,270 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (or (and (<= 1 ~a20~0) (= ~a21~0 ~a20~0) (<= ~a20~0 1)) (not (<= 5 |old(~a16~0)|)) (not (= ~a21~0 ~a17~0)) (= ~a8~0 15) (and (= ~a7~0 1) (= ~a17~0 0)) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (<= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a20~0)| 1))) [2020-10-14 00:44:18,270 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-14 00:44:18,270 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-14 00:44:18,270 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (and (<= 1 ~a20~0) (= ~a21~0 ~a20~0) (<= ~a20~0 1)) (not (<= 5 |old(~a16~0)|)) (not (= ~a21~0 ~a17~0)) (= ~a8~0 15) (and (= ~a7~0 1) (= ~a17~0 0)) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (<= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a20~0)| 1))) [2020-10-14 00:44:18,270 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-14 00:44:18,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:44:18 BoogieIcfgContainer [2020-10-14 00:44:18,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 00:44:18,295 INFO L168 Benchmark]: Toolchain (without parser) took 31668.82 ms. Allocated memory was 138.9 MB in the beginning and 735.6 MB in the end (delta: 596.6 MB). Free memory was 100.9 MB in the beginning and 533.6 MB in the end (delta: -432.7 MB). Peak memory consumption was 619.5 MB. Max. memory is 7.1 GB. [2020-10-14 00:44:18,296 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-14 00:44:18,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 823.89 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 100.7 MB in the beginning and 170.3 MB in the end (delta: -69.6 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. [2020-10-14 00:44:18,298 INFO L168 Benchmark]: Boogie Preprocessor took 152.25 ms. Allocated memory is still 203.9 MB. Free memory was 170.3 MB in the beginning and 165.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-10-14 00:44:18,299 INFO L168 Benchmark]: RCFGBuilder took 1297.00 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 165.2 MB in the beginning and 179.3 MB in the end (delta: -14.1 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. [2020-10-14 00:44:18,300 INFO L168 Benchmark]: TraceAbstraction took 29390.18 ms. Allocated memory was 235.4 MB in the beginning and 735.6 MB in the end (delta: 500.2 MB). Free memory was 179.3 MB in the beginning and 533.6 MB in the end (delta: -354.3 MB). Peak memory consumption was 601.4 MB. Max. memory is 7.1 GB. [2020-10-14 00:44:18,304 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 823.89 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 100.7 MB in the beginning and 170.3 MB in the end (delta: -69.6 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 152.25 ms. Allocated memory is still 203.9 MB. Free memory was 170.3 MB in the beginning and 165.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1297.00 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 165.2 MB in the beginning and 179.3 MB in the end (delta: -14.1 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29390.18 ms. Allocated memory was 235.4 MB in the beginning and 735.6 MB in the end (delta: 500.2 MB). Free memory was 179.3 MB in the beginning and 533.6 MB in the end (delta: -354.3 MB). Peak memory consumption was 601.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 431]: 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: (((((((((1 <= a20 && a21 == a20) && a20 <= 1) || !(5 <= \old(a16))) || !(a21 == a17)) || a8 == 15) || (a7 == 1 && a17 == 0)) || !(\old(a20) == \old(a21))) || !(1 <= \old(a20))) || !(15 == \old(a8))) || !(\old(a20) <= 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.2s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 179 SDtfs, 2211 SDslu, 136 SDs, 0 SdLazy, 4387 SolverSat, 649 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2478occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 572 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 75 PreInvPairs, 117 NumberOfFragments, 313 HoareAnnotationTreeSize, 75 FomulaSimplifications, 27628 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2266 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 18.0s InterpolantComputationTime, 862 NumberOfCodeBlocks, 862 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 855 ConstructedInterpolants, 0 QuantifiedInterpolants, 389460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 232/242 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...