/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:48:01,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:48:01,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:48:01,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:48:01,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:48:01,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:48:01,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:48:01,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:48:01,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:48:01,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:48:01,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:48:01,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:48:01,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:48:01,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:48:01,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:48:01,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:48:01,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:48:01,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:48:01,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:48:01,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:48:01,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:48:01,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:48:01,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:48:01,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:48:01,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:48:01,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:48:01,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:48:01,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:48:01,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:48:01,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:48:01,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:48:01,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:48:01,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:48:01,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:48:01,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:48:01,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:48:01,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:48:01,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:48:01,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:48:01,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:48:01,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:48:01,372 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:48:01,401 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:48:01,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:48:01,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:48:01,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:48:01,403 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:48:01,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:48:01,403 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:48:01,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:48:01,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:48:01,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:48:01,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:48:01,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:48:01,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:48:01,405 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:48:01,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:48:01,405 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:48:01,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:48:01,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:48:01,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:48:01,406 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:48:01,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:48:01,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:48:01,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:48:01,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:48:01,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:48:01,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:48:01,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:48:01,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:48:01,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:48:01,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:48:01,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:48:01,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:48:01,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:48:01,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:48:01,912 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:48:01,914 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-09-25 06:48:02,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/584a50631/278cc44151d8419f8a20cea07457464f/FLAGd5d0a805c [2020-09-25 06:48:02,707 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:48:02,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-09-25 06:48:02,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/584a50631/278cc44151d8419f8a20cea07457464f/FLAGd5d0a805c [2020-09-25 06:48:02,918 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/584a50631/278cc44151d8419f8a20cea07457464f [2020-09-25 06:48:02,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:48:02,939 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:48:02,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:48:02,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:48:02,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:48:02,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:48:02" (1/1) ... [2020-09-25 06:48:02,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b22a6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:02, skipping insertion in model container [2020-09-25 06:48:02,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:48:02" (1/1) ... [2020-09-25 06:48:02,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:48:03,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:48:03,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:48:03,629 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:48:03,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:48:03,847 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:48:03,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:03 WrapperNode [2020-09-25 06:48:03,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:48:03,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:48:03,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:48:03,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:48:03,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:03" (1/1) ... [2020-09-25 06:48:03,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:03" (1/1) ... [2020-09-25 06:48:03,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:03" (1/1) ... [2020-09-25 06:48:03,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:03" (1/1) ... [2020-09-25 06:48:03,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:03" (1/1) ... [2020-09-25 06:48:04,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:03" (1/1) ... [2020-09-25 06:48:04,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:03" (1/1) ... [2020-09-25 06:48:04,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:48:04,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:48:04,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:48:04,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:48:04,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:48:04,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:48:04,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:48:04,132 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 06:48:04,133 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:48:04,133 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 06:48:04,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:48:04,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:48:04,135 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 06:48:04,135 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:48:04,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:48:04,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:48:05,912 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:48:05,912 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:48:05,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:48:05 BoogieIcfgContainer [2020-09-25 06:48:05,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:48:05,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:48:05,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:48:05,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:48:05,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:48:02" (1/3) ... [2020-09-25 06:48:05,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651fb3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:48:05, skipping insertion in model container [2020-09-25 06:48:05,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:48:03" (2/3) ... [2020-09-25 06:48:05,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651fb3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:48:05, skipping insertion in model container [2020-09-25 06:48:05,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:48:05" (3/3) ... [2020-09-25 06:48:05,932 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label40.c [2020-09-25 06:48:05,945 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:48:05,964 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:48:05,988 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:48:06,033 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:48:06,034 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:48:06,034 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:48:06,034 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:48:06,034 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:48:06,034 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:48:06,034 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:48:06,035 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:48:06,077 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 06:48:06,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-25 06:48:06,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:48:06,094 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] [2020-09-25 06:48:06,094 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:48:06,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:48:06,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1046899727, now seen corresponding path program 1 times [2020-09-25 06:48:06,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:48:06,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068345238] [2020-09-25 06:48:06,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:48:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:06,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:06,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:06,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 06:48:06,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:06,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 577 [2020-09-25 06:48:06,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:06,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:06,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:48:06,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 06:48:06,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 06:48:06,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 06:48:07,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:48:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:07,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:07,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:07,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:48:07,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:07,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 06:48:07,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:07,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:07,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:48:07,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:07,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:48:07,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:07,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:48:07,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068345238] [2020-09-25 06:48:07,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:48:07,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:48:07,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426719378] [2020-09-25 06:48:07,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:48:07,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:48:07,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:48:07,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:48:07,207 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 5 states. [2020-09-25 06:48:10,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:48:10,156 INFO L93 Difference]: Finished difference Result 1226 states and 1797 transitions. [2020-09-25 06:48:10,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:48:10,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2020-09-25 06:48:10,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:48:10,203 INFO L225 Difference]: With dead ends: 1226 [2020-09-25 06:48:10,203 INFO L226 Difference]: Without dead ends: 707 [2020-09-25 06:48:10,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:48:10,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-09-25 06:48:10,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 695. [2020-09-25 06:48:10,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-09-25 06:48:10,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 926 transitions. [2020-09-25 06:48:10,378 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 926 transitions. Word has length 68 [2020-09-25 06:48:10,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:48:10,378 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 926 transitions. [2020-09-25 06:48:10,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:48:10,379 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 926 transitions. [2020-09-25 06:48:10,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 06:48:10,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:48:10,390 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:48:10,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:48:10,391 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:48:10,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:48:10,392 INFO L82 PathProgramCache]: Analyzing trace with hash -160289432, now seen corresponding path program 1 times [2020-09-25 06:48:10,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:48:10,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468318443] [2020-09-25 06:48:10,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:48:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:10,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:10,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:10,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:11,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:12,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:12,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:15,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:15,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:15,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-09-25 06:48:15,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:48:15,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 06:48:15,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:15,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:15,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:48:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:48:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 06:48:15,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:48:15,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:48:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:15,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:15,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:15,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:48:15,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:15,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 06:48:15,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:15,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:15,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:48:15,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:15,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:48:15,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:15,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:48:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:15,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:15,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:15,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 06:48:15,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:15,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 06:48:15,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:15,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:15,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:48:15,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:48:15,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 06:48:15,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:15,896 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:48:15,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468318443] [2020-09-25 06:48:15,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:48:15,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:48:15,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044421726] [2020-09-25 06:48:15,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:48:15,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:48:15,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:48:15,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:48:15,901 INFO L87 Difference]: Start difference. First operand 695 states and 926 transitions. Second operand 7 states. [2020-09-25 06:48:17,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:48:17,901 INFO L93 Difference]: Finished difference Result 1574 states and 2131 transitions. [2020-09-25 06:48:17,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:48:17,904 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2020-09-25 06:48:17,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:48:17,910 INFO L225 Difference]: With dead ends: 1574 [2020-09-25 06:48:17,911 INFO L226 Difference]: Without dead ends: 894 [2020-09-25 06:48:17,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:48:17,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-09-25 06:48:17,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 852. [2020-09-25 06:48:17,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 852 states. [2020-09-25 06:48:17,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1127 transitions. [2020-09-25 06:48:17,950 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1127 transitions. Word has length 151 [2020-09-25 06:48:17,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:48:17,951 INFO L479 AbstractCegarLoop]: Abstraction has 852 states and 1127 transitions. [2020-09-25 06:48:17,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:48:17,951 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1127 transitions. [2020-09-25 06:48:17,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 06:48:17,956 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:48:17,956 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:48:17,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:48:17,957 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:48:17,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:48:17,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1824017853, now seen corresponding path program 1 times [2020-09-25 06:48:17,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:48:17,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585040079] [2020-09-25 06:48:17,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:48:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:18,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:18,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:18,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:18,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:19,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:19,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:20,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:22,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:22,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-09-25 06:48:22,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:48:22,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4299 [2020-09-25 06:48:22,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:22,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:22,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:48:22,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-25 06:48:22,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 06:48:22,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:22,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:48:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:22,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:22,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:22,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:48:22,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:22,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:48:22,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:22,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:22,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:48:22,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:22,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:48:22,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:22,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:48:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:22,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:22,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:22,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:48:22,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:22,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 06:48:22,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:22,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:48:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:22,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 06:48:22,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:22,647 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:48:22,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585040079] [2020-09-25 06:48:22,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:48:22,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 06:48:22,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299164096] [2020-09-25 06:48:22,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:48:22,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:48:22,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:48:22,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:48:22,652 INFO L87 Difference]: Start difference. First operand 852 states and 1127 transitions. Second operand 6 states. [2020-09-25 06:48:25,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:48:25,579 INFO L93 Difference]: Finished difference Result 2382 states and 3368 transitions. [2020-09-25 06:48:25,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:48:25,581 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-09-25 06:48:25,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:48:25,594 INFO L225 Difference]: With dead ends: 2382 [2020-09-25 06:48:25,594 INFO L226 Difference]: Without dead ends: 1696 [2020-09-25 06:48:25,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:48:25,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2020-09-25 06:48:25,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1334. [2020-09-25 06:48:25,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1334 states. [2020-09-25 06:48:25,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 1848 transitions. [2020-09-25 06:48:25,681 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 1848 transitions. Word has length 157 [2020-09-25 06:48:25,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:48:25,687 INFO L479 AbstractCegarLoop]: Abstraction has 1334 states and 1848 transitions. [2020-09-25 06:48:25,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:48:25,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 1848 transitions. [2020-09-25 06:48:25,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 06:48:25,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:48:25,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:48:25,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:48:25,693 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:48:25,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:48:25,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1830974367, now seen corresponding path program 1 times [2020-09-25 06:48:25,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:48:25,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128517908] [2020-09-25 06:48:25,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:48:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:25,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:25,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:25,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:29,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:30,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:30,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 06:48:30,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:48:30,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 06:48:30,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:30,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:30,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:48:30,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 06:48:30,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-25 06:48:30,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:30,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:48:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:30,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:30,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:30,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:48:30,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:30,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 06:48:30,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:30,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:30,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:48:30,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:30,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:48:30,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:30,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:48:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:30,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:31,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:31,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 06:48:31,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:31,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-25 06:48:31,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:31,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:48:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:48:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 06:48:31,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:31,221 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:48:31,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128517908] [2020-09-25 06:48:31,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:48:31,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:48:31,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328519431] [2020-09-25 06:48:31,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:48:31,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:48:31,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:48:31,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:48:31,226 INFO L87 Difference]: Start difference. First operand 1334 states and 1848 transitions. Second operand 7 states. [2020-09-25 06:48:33,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:48:33,519 INFO L93 Difference]: Finished difference Result 3356 states and 4900 transitions. [2020-09-25 06:48:33,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:48:33,520 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-09-25 06:48:33,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:48:33,538 INFO L225 Difference]: With dead ends: 3356 [2020-09-25 06:48:33,539 INFO L226 Difference]: Without dead ends: 2037 [2020-09-25 06:48:33,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:48:33,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2020-09-25 06:48:33,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 1813. [2020-09-25 06:48:33,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1813 states. [2020-09-25 06:48:33,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2424 transitions. [2020-09-25 06:48:33,628 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2424 transitions. Word has length 190 [2020-09-25 06:48:33,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:48:33,629 INFO L479 AbstractCegarLoop]: Abstraction has 1813 states and 2424 transitions. [2020-09-25 06:48:33,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:48:33,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2424 transitions. [2020-09-25 06:48:33,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 06:48:33,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:48:33,636 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:48:33,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:48:33,636 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:48:33,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:48:33,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1649911016, now seen corresponding path program 1 times [2020-09-25 06:48:33,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:48:33,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879075150] [2020-09-25 06:48:33,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:48:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:33,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:33,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:33,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:34,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:34,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:34,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:35,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:35,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:35,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:38,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:38,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-25 06:48:38,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 06:48:38,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 06:48:38,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:38,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:38,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:48:38,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 06:48:38,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 06:48:38,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:38,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:48:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:38,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:38,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:38,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:48:38,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:38,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:48:38,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:38,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:38,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:48:38,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:38,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:48:38,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:38,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:48:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:38,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:38,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:38,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 06:48:38,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:38,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 06:48:38,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:38,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:38,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:48:38,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:38,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 06:48:38,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:38,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:48:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:38,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:39,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:39,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 06:48:39,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:39,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 06:48:39,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:39,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:48:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:48:39,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 06:48:39,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:48:39,190 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 06:48:39,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879075150] [2020-09-25 06:48:39,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:48:39,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:48:39,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888646518] [2020-09-25 06:48:39,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:48:39,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:48:39,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:48:39,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:48:39,193 INFO L87 Difference]: Start difference. First operand 1813 states and 2424 transitions. Second operand 7 states. [2020-09-25 06:48:41,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:48:41,595 INFO L93 Difference]: Finished difference Result 4153 states and 5888 transitions. [2020-09-25 06:48:41,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:48:41,596 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 230 [2020-09-25 06:48:41,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:48:41,612 INFO L225 Difference]: With dead ends: 4153 [2020-09-25 06:48:41,612 INFO L226 Difference]: Without dead ends: 2505 [2020-09-25 06:48:41,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:48:41,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2020-09-25 06:48:41,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2289. [2020-09-25 06:48:41,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2289 states. [2020-09-25 06:48:41,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 3030 transitions. [2020-09-25 06:48:41,701 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 3030 transitions. Word has length 230 [2020-09-25 06:48:41,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:48:41,702 INFO L479 AbstractCegarLoop]: Abstraction has 2289 states and 3030 transitions. [2020-09-25 06:48:41,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:48:41,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 3030 transitions. [2020-09-25 06:48:41,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-25 06:48:41,708 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:48:41,708 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:48:41,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:48:41,708 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:48:41,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:48:41,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1174720762, now seen corresponding path program 1 times [2020-09-25 06:48:41,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:48:41,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540382738] [2020-09-25 06:48:41,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:48:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:41,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:41,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:41,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:42,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:42,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:43,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:44,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:44,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:45,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:45,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:46,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:46,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 06:48:46,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 06:48:46,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 06:48:46,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:46,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:46,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:48:46,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-25 06:48:46,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 06:48:46,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:48:46,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:48:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:46,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:46,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:46,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:48:46,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:46,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:48:46,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:46,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:46,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:48:46,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:48:46,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:48:46,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:48:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:46,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:46,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:46,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:48:46,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:46,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 06:48:46,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:46,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:46,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:48:46,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:48:46,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 06:48:46,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:48:47,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 06:48:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:48:47,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:48:47,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:48:47,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 06:48:47,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:48:47,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 06:48:47,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:48:47,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:48:47,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:48:47,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:48:47,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 06:48:47,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:48:47,413 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 06:48:47,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540382738] [2020-09-25 06:48:47,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:48:47,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 06:48:47,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267113525] [2020-09-25 06:48:47,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:48:47,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:48:47,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:48:47,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:48:47,416 INFO L87 Difference]: Start difference. First operand 2289 states and 3030 transitions. Second operand 9 states.