/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label29.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:06:54,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:06:54,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:06:54,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:06:54,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:06:54,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:06:54,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:06:54,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:06:54,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:06:54,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:06:54,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:06:54,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:06:54,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:06:54,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:06:54,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:06:54,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:06:54,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:06:54,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:06:54,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:06:54,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:06:54,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:06:54,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:06:54,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:06:54,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:06:54,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:06:54,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:06:54,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:06:54,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:06:54,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:06:54,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:06:54,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:06:54,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:06:54,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:06:54,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:06:54,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:06:54,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:06:54,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:06:54,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:06:54,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:06:54,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:06:54,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:06:54,932 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 19:06:54,953 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:06:54,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:06:54,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:06:54,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:06:54,957 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:06:54,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:06:54,957 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:06:54,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:06:54,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:06:54,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:06:54,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:06:54,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:06:54,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:06:54,959 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:06:54,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:06:54,959 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:06:54,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:06:54,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:06:54,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:06:54,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:06:54,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:06:54,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:06:54,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:06:54,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:06:54,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:06:54,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:06:54,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:06:54,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:06:54,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:06:54,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 19:06:55,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:06:55,284 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:06:55,287 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:06:55,289 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:06:55,290 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:06:55,290 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label29.c [2020-10-14 19:06:55,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/078ffca7f/f5c060f914104d308923225f19c0dc37/FLAGd6a06cbbc [2020-10-14 19:06:55,912 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:06:55,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label29.c [2020-10-14 19:06:55,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/078ffca7f/f5c060f914104d308923225f19c0dc37/FLAGd6a06cbbc [2020-10-14 19:06:56,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/078ffca7f/f5c060f914104d308923225f19c0dc37 [2020-10-14 19:06:56,213 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:06:56,215 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:06:56,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:06:56,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:06:56,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:06:56,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:06:56" (1/1) ... [2020-10-14 19:06:56,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2fc715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:06:56, skipping insertion in model container [2020-10-14 19:06:56,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:06:56" (1/1) ... [2020-10-14 19:06:56,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:06:56,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:06:56,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:06:56,896 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:06:57,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:06:57,050 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:06:57,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:06:57 WrapperNode [2020-10-14 19:06:57,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:06:57,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:06:57,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:06:57,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:06:57,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:06:57" (1/1) ... [2020-10-14 19:06:57,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:06:57" (1/1) ... [2020-10-14 19:06:57,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:06:57" (1/1) ... [2020-10-14 19:06:57,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:06:57" (1/1) ... [2020-10-14 19:06:57,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:06:57" (1/1) ... [2020-10-14 19:06:57,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:06:57" (1/1) ... [2020-10-14 19:06:57,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:06:57" (1/1) ... [2020-10-14 19:06:57,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:06:57,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:06:57,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:06:57,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:06:57,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:06:57" (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 19:06:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:06:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:06:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:06:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:06:57,215 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:06:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:06:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:06:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:06:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:06:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:06:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:06:58,299 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:06:58,299 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:06:58,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:06:58 BoogieIcfgContainer [2020-10-14 19:06:58,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:06:58,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:06:58,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:06:58,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:06:58,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:06:56" (1/3) ... [2020-10-14 19:06:58,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3748edb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:06:58, skipping insertion in model container [2020-10-14 19:06:58,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:06:57" (2/3) ... [2020-10-14 19:06:58,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3748edb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:06:58, skipping insertion in model container [2020-10-14 19:06:58,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:06:58" (3/3) ... [2020-10-14 19:06:58,316 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label29.c [2020-10-14 19:06:58,327 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:06:58,336 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:06:58,351 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:06:58,378 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:06:58,379 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:06:58,379 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:06:58,379 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:06:58,379 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:06:58,379 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:06:58,380 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:06:58,380 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:06:58,404 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-14 19:06:58,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 19:06:58,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:06:58,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:06:58,419 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:06:58,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:06:58,425 INFO L82 PathProgramCache]: Analyzing trace with hash 370140070, now seen corresponding path program 1 times [2020-10-14 19:06:58,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:06:58,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954431974] [2020-10-14 19:06:58,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:06:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:06:58,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:06:59,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:00,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:00,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 19:07:00,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:07:00,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1556 [2020-10-14 19:07:00,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:00,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:00,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:07:00,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:07:00,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 19:07:00,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 19:07:00,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:07:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:00,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:00,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:00,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:07:00,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:00,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 19:07:00,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:00,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:00,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:07:00,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:00,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:07:00,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:00,538 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 19:07:00,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954431974] [2020-10-14 19:07:00,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:07:00,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 19:07:00,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328506956] [2020-10-14 19:07:00,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 19:07:00,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:07:00,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 19:07:00,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 19:07:00,568 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 4 states. [2020-10-14 19:07:02,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:07:02,474 INFO L93 Difference]: Finished difference Result 627 states and 1073 transitions. [2020-10-14 19:07:02,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:07:02,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2020-10-14 19:07:02,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:07:02,493 INFO L225 Difference]: With dead ends: 627 [2020-10-14 19:07:02,493 INFO L226 Difference]: Without dead ends: 327 [2020-10-14 19:07:02,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:07:02,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-14 19:07:02,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2020-10-14 19:07:02,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-14 19:07:02,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 480 transitions. [2020-10-14 19:07:02,575 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 480 transitions. Word has length 108 [2020-10-14 19:07:02,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:07:02,576 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 480 transitions. [2020-10-14 19:07:02,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 19:07:02,576 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 480 transitions. [2020-10-14 19:07:02,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-14 19:07:02,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:07:02,581 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:07:02,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 19:07:02,582 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:07:02,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:07:02,582 INFO L82 PathProgramCache]: Analyzing trace with hash 521995979, now seen corresponding path program 1 times [2020-10-14 19:07:02,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:07:02,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133542216] [2020-10-14 19:07:02,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:07:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:02,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:02,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:03,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:03,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:03,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:03,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 19:07:03,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:07:03,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1169 [2020-10-14 19:07:03,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:03,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:03,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:07:03,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 19:07:03,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 19:07:03,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:03,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:07:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:03,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:03,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:03,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:07:03,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:03,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:07:03,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:03,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:03,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:07:03,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:03,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:07:03,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:03,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:07:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:03,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:03,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:03,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:07:03,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:03,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 19:07:03,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:03,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:03,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:07:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 19:07:03,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:03,977 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:07:03,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133542216] [2020-10-14 19:07:03,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:07:03,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:07:03,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775527074] [2020-10-14 19:07:03,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:07:03,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:07:03,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:07:03,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:07:03,982 INFO L87 Difference]: Start difference. First operand 319 states and 480 transitions. Second operand 5 states. [2020-10-14 19:07:05,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:07:05,289 INFO L93 Difference]: Finished difference Result 938 states and 1440 transitions. [2020-10-14 19:07:05,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:07:05,290 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2020-10-14 19:07:05,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:07:05,296 INFO L225 Difference]: With dead ends: 938 [2020-10-14 19:07:05,296 INFO L226 Difference]: Without dead ends: 625 [2020-10-14 19:07:05,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:07:05,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2020-10-14 19:07:05,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 613. [2020-10-14 19:07:05,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-10-14 19:07:05,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 813 transitions. [2020-10-14 19:07:05,345 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 813 transitions. Word has length 123 [2020-10-14 19:07:05,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:07:05,346 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 813 transitions. [2020-10-14 19:07:05,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:07:05,346 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 813 transitions. [2020-10-14 19:07:05,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-14 19:07:05,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:07:05,352 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:07:05,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 19:07:05,352 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:07:05,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:07:05,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1627613886, now seen corresponding path program 1 times [2020-10-14 19:07:05,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:07:05,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237699703] [2020-10-14 19:07:05,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:07:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:05,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:05,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:06,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:06,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:06,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-14 19:07:06,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:07:06,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1190 [2020-10-14 19:07:06,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:06,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:06,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:07:06,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 19:07:06,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 19:07:06,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:06,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:07:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:06,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:06,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:06,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:07:06,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:06,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:07:06,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:06,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:06,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:07:06,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:06,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:07:06,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:06,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:07:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:06,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:06,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:06,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 19:07:06,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:06,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 19:07:06,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:06,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:06,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:07:06,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:06,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 19:07:06,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:07,035 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:07:07,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237699703] [2020-10-14 19:07:07,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:07:07,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:07:07,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737623519] [2020-10-14 19:07:07,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:07:07,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:07:07,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:07:07,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:07:07,038 INFO L87 Difference]: Start difference. First operand 613 states and 813 transitions. Second operand 5 states. [2020-10-14 19:07:08,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:07:08,228 INFO L93 Difference]: Finished difference Result 1319 states and 1818 transitions. [2020-10-14 19:07:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:07:08,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2020-10-14 19:07:08,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:07:08,235 INFO L225 Difference]: With dead ends: 1319 [2020-10-14 19:07:08,235 INFO L226 Difference]: Without dead ends: 623 [2020-10-14 19:07:08,237 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 19:07:08,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-10-14 19:07:08,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 613. [2020-10-14 19:07:08,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-10-14 19:07:08,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 809 transitions. [2020-10-14 19:07:08,277 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 809 transitions. Word has length 130 [2020-10-14 19:07:08,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:07:08,278 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 809 transitions. [2020-10-14 19:07:08,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:07:08,278 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 809 transitions. [2020-10-14 19:07:08,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-14 19:07:08,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:07:08,284 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:07:08,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 19:07:08,284 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:07:08,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:07:08,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1828098358, now seen corresponding path program 1 times [2020-10-14 19:07:08,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:07:08,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567893432] [2020-10-14 19:07:08,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:07:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:08,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:08,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:09,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:09,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:09,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 19:07:09,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:07:09,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1464 [2020-10-14 19:07:09,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:09,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:09,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:07:09,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 19:07:09,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 19:07:09,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:09,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:07:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:09,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:09,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:09,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:07:09,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:09,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:07:09,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:09,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:09,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:07:09,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:09,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:07:09,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:09,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:07:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:09,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:09,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:09,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 19:07:09,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:09,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 19:07:09,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:09,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:09,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:07:09,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:09,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 19:07:09,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:10,077 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:07:10,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567893432] [2020-10-14 19:07:10,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:07:10,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:07:10,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058929799] [2020-10-14 19:07:10,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:07:10,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:07:10,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:07:10,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:07:10,080 INFO L87 Difference]: Start difference. First operand 613 states and 809 transitions. Second operand 5 states. [2020-10-14 19:07:11,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:07:11,192 INFO L93 Difference]: Finished difference Result 1316 states and 1806 transitions. [2020-10-14 19:07:11,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:07:11,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2020-10-14 19:07:11,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:07:11,203 INFO L225 Difference]: With dead ends: 1316 [2020-10-14 19:07:11,204 INFO L226 Difference]: Without dead ends: 623 [2020-10-14 19:07:11,208 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 19:07:11,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-10-14 19:07:11,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 613. [2020-10-14 19:07:11,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-10-14 19:07:11,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 797 transitions. [2020-10-14 19:07:11,264 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 797 transitions. Word has length 134 [2020-10-14 19:07:11,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:07:11,266 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 797 transitions. [2020-10-14 19:07:11,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:07:11,266 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 797 transitions. [2020-10-14 19:07:11,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-14 19:07:11,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:07:11,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:07:11,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 19:07:11,278 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:07:11,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:07:11,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1562462290, now seen corresponding path program 1 times [2020-10-14 19:07:11,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:07:11,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51134958] [2020-10-14 19:07:11,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:07:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:11,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:11,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:11,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:12,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:12,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:12,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 19:07:12,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:07:12,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1333 [2020-10-14 19:07:12,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:12,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:12,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 19:07:12,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:07:12,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 19:07:12,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:12,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:07:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:12,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:12,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:12,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:07:12,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:12,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:07:12,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:12,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:07:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:07:12,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:12,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:07:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:12,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:12,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:12,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:12,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 19:07:12,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:07:12,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 19:07:12,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:12,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:12,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:07:12,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:07:12,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 19:07:12,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:12,872 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 19:07:12,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51134958] [2020-10-14 19:07:12,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:07:12,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 19:07:12,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530671646] [2020-10-14 19:07:12,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:07:12,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:07:12,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:07:12,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:07:12,875 INFO L87 Difference]: Start difference. First operand 613 states and 797 transitions. Second operand 7 states. [2020-10-14 19:07:14,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:07:14,308 INFO L93 Difference]: Finished difference Result 1699 states and 2332 transitions. [2020-10-14 19:07:14,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 19:07:14,309 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-10-14 19:07:14,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:07:14,316 INFO L225 Difference]: With dead ends: 1699 [2020-10-14 19:07:14,316 INFO L226 Difference]: Without dead ends: 1092 [2020-10-14 19:07:14,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:07:14,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2020-10-14 19:07:14,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1068. [2020-10-14 19:07:14,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2020-10-14 19:07:14,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1385 transitions. [2020-10-14 19:07:14,375 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1385 transitions. Word has length 138 [2020-10-14 19:07:14,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:07:14,376 INFO L479 AbstractCegarLoop]: Abstraction has 1068 states and 1385 transitions. [2020-10-14 19:07:14,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:07:14,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1385 transitions. [2020-10-14 19:07:14,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-14 19:07:14,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:07:14,383 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:07:14,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 19:07:14,383 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:07:14,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:07:14,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1118464890, now seen corresponding path program 1 times [2020-10-14 19:07:14,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:07:14,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213109293] [2020-10-14 19:07:14,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:07:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:14,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:14,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:14,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:15,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:17,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:17,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 19:07:17,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:07:17,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3070 [2020-10-14 19:07:17,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:17,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:17,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:07:17,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 19:07:17,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 19:07:17,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:17,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:07:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:17,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:17,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:17,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:07:17,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:17,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:07:17,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:17,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:07:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:07:17,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:17,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:07:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:17,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:17,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:17,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 19:07:17,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:17,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:07:17,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:17,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:17,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:07:17,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:17,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:07:17,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:17,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 19:07:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:17,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:17,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:17,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 19:07:17,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:17,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 19:07:17,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:17,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:17,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:07:17,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:17,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 19:07:17,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:17,719 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 19:07:17,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213109293] [2020-10-14 19:07:17,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:07:17,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:07:17,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430953818] [2020-10-14 19:07:17,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:07:17,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:07:17,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:07:17,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:07:17,724 INFO L87 Difference]: Start difference. First operand 1068 states and 1385 transitions. Second operand 5 states. [2020-10-14 19:07:19,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:07:19,321 INFO L93 Difference]: Finished difference Result 2871 states and 3873 transitions. [2020-10-14 19:07:19,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:07:19,321 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 166 [2020-10-14 19:07:19,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:07:19,334 INFO L225 Difference]: With dead ends: 2871 [2020-10-14 19:07:19,334 INFO L226 Difference]: Without dead ends: 1662 [2020-10-14 19:07:19,341 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 19:07:19,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2020-10-14 19:07:19,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1216. [2020-10-14 19:07:19,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1216 states. [2020-10-14 19:07:19,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1563 transitions. [2020-10-14 19:07:19,404 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1563 transitions. Word has length 166 [2020-10-14 19:07:19,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:07:19,439 INFO L479 AbstractCegarLoop]: Abstraction has 1216 states and 1563 transitions. [2020-10-14 19:07:19,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:07:19,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1563 transitions. [2020-10-14 19:07:19,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-14 19:07:19,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:07:19,444 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:07:19,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 19:07:19,444 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:07:19,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:07:19,445 INFO L82 PathProgramCache]: Analyzing trace with hash -541361816, now seen corresponding path program 1 times [2020-10-14 19:07:19,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:07:19,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1955608863] [2020-10-14 19:07:19,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:07:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:19,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:19,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:19,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:19,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:20,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:20,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 19:07:20,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:07:20,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1182 [2020-10-14 19:07:20,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:20,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:20,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 19:07:20,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:07:20,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 19:07:20,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:20,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:07:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:20,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:20,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:20,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:07:20,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:07:20,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:07:20,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:20,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:20,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:07:20,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:20,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:07:20,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:20,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:07:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:07:20,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:20,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:07:21,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:07:21,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 19:07:21,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:07:21,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 19:07:21,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:07:21,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:07:21,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 19:07:21,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:07:21,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 19:07:21,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:07:21,255 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:07:21,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1955608863] [2020-10-14 19:07:21,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:07:21,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:07:21,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197299496] [2020-10-14 19:07:21,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:07:21,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:07:21,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:07:21,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:07:21,260 INFO L87 Difference]: Start difference. First operand 1216 states and 1563 transitions. Second operand 7 states. [2020-10-14 19:07:22,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:07:22,523 INFO L93 Difference]: Finished difference Result 2386 states and 3096 transitions. [2020-10-14 19:07:22,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 19:07:22,527 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-10-14 19:07:22,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:07:22,527 INFO L225 Difference]: With dead ends: 2386 [2020-10-14 19:07:22,527 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 19:07:22,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 19:07:22,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 19:07:22,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 19:07:22,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 19:07:22,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 19:07:22,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166 [2020-10-14 19:07:22,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:07:22,538 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 19:07:22,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:07:22,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 19:07:22,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 19:07:22,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 19:07:22,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 19:07:22,873 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 39 [2020-10-14 19:07:23,018 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 39 [2020-10-14 19:07:23,359 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 54 [2020-10-14 19:07:23,499 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 19:07:23,500 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-14 19:07:23,500 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 19:07:23,500 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,500 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,501 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,501 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,501 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,501 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-14 19:07:23,501 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-14 19:07:23,501 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-14 19:07:23,501 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-14 19:07:23,502 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-14 19:07:23,502 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-14 19:07:23,502 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-14 19:07:23,502 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-14 19:07:23,502 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-14 19:07:23,502 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-14 19:07:23,502 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-14 19:07:23,503 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-14 19:07:23,503 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-14 19:07:23,503 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,503 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,503 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,503 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,503 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-14 19:07:23,503 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,504 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-14 19:07:23,504 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-14 19:07:23,504 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-14 19:07:23,504 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-14 19:07:23,504 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-14 19:07:23,504 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-14 19:07:23,504 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-14 19:07:23,505 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-14 19:07:23,505 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-14 19:07:23,505 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-14 19:07:23,505 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-14 19:07:23,505 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-14 19:07:23,505 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-14 19:07:23,505 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-14 19:07:23,505 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-14 19:07:23,506 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,506 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,506 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,506 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,506 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,506 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 478) no Hoare annotation was computed. [2020-10-14 19:07:23,506 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-14 19:07:23,507 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-14 19:07:23,507 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-14 19:07:23,507 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-14 19:07:23,507 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-14 19:07:23,507 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-14 19:07:23,507 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-14 19:07:23,507 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-14 19:07:23,507 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-14 19:07:23,508 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-14 19:07:23,508 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-14 19:07:23,508 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,508 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,508 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,508 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,508 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,508 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-14 19:07:23,508 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-14 19:07:23,509 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-14 19:07:23,509 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-14 19:07:23,509 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-14 19:07:23,509 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-14 19:07:23,509 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-14 19:07:23,509 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-14 19:07:23,509 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-14 19:07:23,509 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-14 19:07:23,509 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-14 19:07:23,510 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-14 19:07:23,510 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-14 19:07:23,510 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,510 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,510 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,510 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,510 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,510 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-14 19:07:23,511 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-14 19:07:23,511 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-14 19:07:23,511 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-14 19:07:23,511 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-14 19:07:23,511 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-14 19:07:23,511 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-14 19:07:23,511 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-14 19:07:23,511 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-14 19:07:23,512 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-14 19:07:23,512 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-14 19:07:23,512 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-14 19:07:23,512 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-14 19:07:23,512 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-14 19:07:23,512 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-14 19:07:23,512 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-14 19:07:23,513 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,513 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,513 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,513 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,513 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-14 19:07:23,513 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,513 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-14 19:07:23,514 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,514 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-14 19:07:23,514 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-14 19:07:23,514 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-14 19:07:23,514 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,514 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,514 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-14 19:07:23,514 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-14 19:07:23,514 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-14 19:07:23,514 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-14 19:07:23,515 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-14 19:07:23,515 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-14 19:07:23,515 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-14 19:07:23,515 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-14 19:07:23,515 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-14 19:07:23,515 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-14 19:07:23,515 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-14 19:07:23,515 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,515 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,516 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,516 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,516 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,516 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,516 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-14 19:07:23,516 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-14 19:07:23,516 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-14 19:07:23,516 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-14 19:07:23,516 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-14 19:07:23,517 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-14 19:07:23,517 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-14 19:07:23,517 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-14 19:07:23,517 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-14 19:07:23,517 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-14 19:07:23,517 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-14 19:07:23,517 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,517 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,518 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,518 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,518 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,518 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,518 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-14 19:07:23,518 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-14 19:07:23,518 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-14 19:07:23,518 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-14 19:07:23,519 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-14 19:07:23,519 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-14 19:07:23,519 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-14 19:07:23,519 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-14 19:07:23,519 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-14 19:07:23,519 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-14 19:07:23,519 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-14 19:07:23,520 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-14 19:07:23,520 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-14 19:07:23,520 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-14 19:07:23,520 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,520 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,520 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,521 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse7 (= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse3 (= ~a25~0 |old(~a25~0)|)) (.cse4 (= ~a19~0 |old(~a19~0)|))) (let ((.cse0 (and (= ~a28~0 |old(~a28~0)|) .cse7 .cse2 .cse3 .cse4)) (.cse1 (not (= ~a21~0 1))) (.cse6 (not (= |old(~a19~0)| 1))) (.cse5 (not (= |old(~a11~0)| 1)))) (and (or (not (<= 8 |old(~a17~0)|)) .cse0 .cse1) (or (not (= 7 |old(~a17~0)|)) (not (= 0 |old(~a11~0)|)) (not (= |old(~a11~0)| |old(~a19~0)|)) (not (= 9 |old(~a28~0)|)) .cse1 (and (= 7 ~a17~0) .cse2 .cse3 (= ~a28~0 9) .cse4) (not (= |old(~a11~0)| |old(~a25~0)|))) (or .cse0 .cse1 .cse5) (or .cse6 .cse0 .cse1) (or .cse6 (not (= 11 |old(~a28~0)|)) (and .cse7 .cse2 .cse3 .cse4 (= ~a28~0 11)) .cse5)))) [2020-10-14 19:07:23,521 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,521 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,521 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,522 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-14 19:07:23,522 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-14 19:07:23,522 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-14 19:07:23,522 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-14 19:07:23,522 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-14 19:07:23,522 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-14 19:07:23,522 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-14 19:07:23,523 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-14 19:07:23,523 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-14 19:07:23,523 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-14 19:07:23,523 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-14 19:07:23,523 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-14 19:07:23,523 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-14 19:07:23,523 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,523 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,524 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,524 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,524 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,524 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,524 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-14 19:07:23,524 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-14 19:07:23,524 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-14 19:07:23,525 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-14 19:07:23,525 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-14 19:07:23,525 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-14 19:07:23,525 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-14 19:07:23,525 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-14 19:07:23,525 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-14 19:07:23,525 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-14 19:07:23,526 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-14 19:07:23,526 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-14 19:07:23,526 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-14 19:07:23,526 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-14 19:07:23,526 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-14 19:07:23,526 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-14 19:07:23,526 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,526 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,527 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,527 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,527 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-14 19:07:23,527 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-14 19:07:23,527 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-14 19:07:23,527 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-14 19:07:23,527 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-14 19:07:23,528 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-14 19:07:23,528 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-14 19:07:23,528 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-14 19:07:23,528 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-14 19:07:23,528 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-14 19:07:23,528 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-14 19:07:23,528 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-14 19:07:23,529 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-14 19:07:23,529 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-14 19:07:23,529 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-14 19:07:23,529 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-14 19:07:23,529 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-14 19:07:23,529 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-14 19:07:23,529 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-14 19:07:23,530 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-14 19:07:23,530 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 19:07:23,530 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (= ~a21~0 1) (<= 8 ~a17~0)) [2020-10-14 19:07:23,530 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 19:07:23,530 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 19:07:23,530 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (not (<= 8 |old(~a17~0)|)) (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|)) (not (= ~a21~0 1))) [2020-10-14 19:07:23,531 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (not (<= 8 |old(~a17~0)|)) (= ~a19~0 1) (<= 8 ~a17~0) (and (= ~a25~0 ~a11~0) (= 7 ~a17~0) (= ~a11~0 0) (= ~a28~0 9) (= ~a11~0 ~a19~0)) (not (= ~a21~0 1)) (= ~a11~0 1)) [2020-10-14 19:07:23,531 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-14 19:07:23,531 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-14 19:07:23,531 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (not (<= 8 |old(~a17~0)|)) (= ~a19~0 1) (<= 8 ~a17~0) (and (= ~a25~0 ~a11~0) (= 7 ~a17~0) (= ~a11~0 0) (= ~a28~0 9) (= ~a11~0 ~a19~0)) (not (= ~a21~0 1)) (= ~a11~0 1)) [2020-10-14 19:07:23,531 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-14 19:07:23,532 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-14 19:07:23,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:07:23 BoogieIcfgContainer [2020-10-14 19:07:23,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 19:07:23,556 INFO L168 Benchmark]: Toolchain (without parser) took 27341.06 ms. Allocated memory was 146.8 MB in the beginning and 640.2 MB in the end (delta: 493.4 MB). Free memory was 101.3 MB in the beginning and 101.7 MB in the end (delta: -386.7 kB). Peak memory consumption was 493.0 MB. Max. memory is 7.1 GB. [2020-10-14 19:07:23,557 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-14 19:07:23,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 834.90 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 100.8 MB in the beginning and 171.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2020-10-14 19:07:23,559 INFO L168 Benchmark]: Boogie Preprocessor took 96.14 ms. Allocated memory is still 205.5 MB. Free memory was 171.9 MB in the beginning and 166.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-10-14 19:07:23,560 INFO L168 Benchmark]: RCFGBuilder took 1158.67 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 166.8 MB in the beginning and 178.3 MB in the end (delta: -11.5 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-10-14 19:07:23,561 INFO L168 Benchmark]: TraceAbstraction took 25246.78 ms. Allocated memory was 237.0 MB in the beginning and 640.2 MB in the end (delta: 403.2 MB). Free memory was 178.3 MB in the beginning and 101.7 MB in the end (delta: 76.6 MB). Peak memory consumption was 479.8 MB. Max. memory is 7.1 GB. [2020-10-14 19:07:23,569 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 834.90 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 100.8 MB in the beginning and 171.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.14 ms. Allocated memory is still 205.5 MB. Free memory was 171.9 MB in the beginning and 166.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1158.67 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 166.8 MB in the beginning and 178.3 MB in the end (delta: -11.5 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25246.78 ms. Allocated memory was 237.0 MB in the beginning and 640.2 MB in the end (delta: 403.2 MB). Free memory was 178.3 MB in the beginning and 101.7 MB in the end (delta: 76.6 MB). Peak memory consumption was 479.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 478]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((!(\old(a19) == 1) || !(8 <= \old(a17))) || a19 == 1) || 8 <= a17) || ((((a25 == a11 && 7 == a17) && a11 == 0) && a28 == 9) && a11 == a19)) || !(a21 == 1)) || a11 == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.1s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 262 SDtfs, 2121 SDslu, 279 SDs, 0 SdLazy, 5179 SolverSat, 880 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1216occurred 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, 510 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 49 PreInvPairs, 75 NumberOfFragments, 314 HoareAnnotationTreeSize, 49 FomulaSimplifications, 53252 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 922 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.7s InterpolantComputationTime, 965 NumberOfCodeBlocks, 965 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 958 ConstructedInterpolants, 0 QuantifiedInterpolants, 1137762 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 184/214 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...