/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/psyco/psyco_security.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:49:23,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:49:23,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:49:23,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:49:23,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:49:23,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:49:23,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:49:23,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:49:23,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:49:23,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:49:23,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:49:23,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:49:23,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:49:23,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:49:23,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:49:23,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:49:23,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:49:23,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:49:23,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:49:23,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:49:23,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:49:23,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:49:23,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:49:23,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:49:23,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:49:23,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:49:23,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:49:23,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:49:23,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:49:23,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:49:23,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:49:23,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:49:23,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:49:23,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:49:23,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:49:23,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:49:23,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:49:23,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:49:23,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:49:23,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:49:23,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:49:23,366 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 06:49:23,400 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:49:23,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:49:23,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:49:23,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:49:23,402 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:49:23,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:49:23,403 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:49:23,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:49:23,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:49:23,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:49:23,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:49:23,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:49:23,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:49:23,404 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:49:23,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:49:23,405 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:49:23,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:49:23,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:49:23,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:49:23,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:49:23,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:49:23,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:49:23,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:49:23,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:49:23,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:49:23,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:49:23,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:49:23,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:49:23,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:49:23,408 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 06:49:23,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:49:23,940 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:49:23,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:49:23,948 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:49:23,949 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:49:23,950 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_security.c [2020-09-25 06:49:24,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c46bba48b/2358ae81527f4bf28cc61c99667bf382/FLAGfc7be6af5 [2020-09-25 06:49:24,612 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:49:24,613 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/psyco/psyco_security.c [2020-09-25 06:49:24,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c46bba48b/2358ae81527f4bf28cc61c99667bf382/FLAGfc7be6af5 [2020-09-25 06:49:24,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c46bba48b/2358ae81527f4bf28cc61c99667bf382 [2020-09-25 06:49:24,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:49:24,989 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:49:24,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:49:24,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:49:24,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:49:24,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:49:24" (1/1) ... [2020-09-25 06:49:25,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161bae18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:49:25, skipping insertion in model container [2020-09-25 06:49:25,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:49:24" (1/1) ... [2020-09-25 06:49:25,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:49:25,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:49:25,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:49:25,343 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:49:25,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:49:25,515 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:49:25,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:49:25 WrapperNode [2020-09-25 06:49:25,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:49:25,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:49:25,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:49:25,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:49:25,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:49:25" (1/1) ... [2020-09-25 06:49:25,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:49:25" (1/1) ... [2020-09-25 06:49:25,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:49:25" (1/1) ... [2020-09-25 06:49:25,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:49:25" (1/1) ... [2020-09-25 06:49:25,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:49:25" (1/1) ... [2020-09-25 06:49:25,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:49:25" (1/1) ... [2020-09-25 06:49:25,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:49:25" (1/1) ... [2020-09-25 06:49:25,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:49:25,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:49:25,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:49:25,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:49:25,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:49:25" (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 06:49:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:49:25,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:49:25,642 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:49:25,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:49:25,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:49:25,642 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:49:25,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:49:25,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:49:26,271 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:49:26,271 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-09-25 06:49:26,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:49:26 BoogieIcfgContainer [2020-09-25 06:49:26,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:49:26,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:49:26,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:49:26,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:49:26,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:49:24" (1/3) ... [2020-09-25 06:49:26,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb4f5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:49:26, skipping insertion in model container [2020-09-25 06:49:26,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:49:25" (2/3) ... [2020-09-25 06:49:26,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb4f5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:49:26, skipping insertion in model container [2020-09-25 06:49:26,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:49:26" (3/3) ... [2020-09-25 06:49:26,289 INFO L109 eAbstractionObserver]: Analyzing ICFG psyco_security.c [2020-09-25 06:49:26,301 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:49:26,313 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:49:26,335 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:49:26,368 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:49:26,368 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:49:26,368 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:49:26,368 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:49:26,369 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:49:26,369 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:49:26,369 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:49:26,369 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:49:26,398 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states. [2020-09-25 06:49:26,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 06:49:26,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:49:26,409 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] [2020-09-25 06:49:26,410 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:49:26,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:49:26,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1507146259, now seen corresponding path program 1 times [2020-09-25 06:49:26,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:49:26,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988393240] [2020-09-25 06:49:26,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:49:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:26,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:26,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:26,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:49:26,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:26,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 06:49:26,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:26,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:26,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:49:26,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 06:49:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:49:26,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:49:26,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:49:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:26,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:26,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:26,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:49:26,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:26,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:49:26,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:26,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:26,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:49:26,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:49:26,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:49:26,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:26,760 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 06:49:26,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988393240] [2020-09-25 06:49:26,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:49:26,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:49:26,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698152631] [2020-09-25 06:49:26,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:49:26,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:49:26,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:49:26,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:49:26,795 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 3 states. [2020-09-25 06:49:26,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:49:26,894 INFO L93 Difference]: Finished difference Result 369 states and 507 transitions. [2020-09-25 06:49:26,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:49:26,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-09-25 06:49:26,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:49:26,915 INFO L225 Difference]: With dead ends: 369 [2020-09-25 06:49:26,915 INFO L226 Difference]: Without dead ends: 178 [2020-09-25 06:49:26,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:49:26,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-25 06:49:26,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-09-25 06:49:26,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-25 06:49:26,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 213 transitions. [2020-09-25 06:49:26,988 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 213 transitions. Word has length 22 [2020-09-25 06:49:26,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:49:26,988 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 213 transitions. [2020-09-25 06:49:26,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:49:26,989 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 213 transitions. [2020-09-25 06:49:26,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 06:49:26,990 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:49:26,991 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] [2020-09-25 06:49:26,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:49:26,992 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:49:26,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:49:26,992 INFO L82 PathProgramCache]: Analyzing trace with hash -946920198, now seen corresponding path program 1 times [2020-09-25 06:49:26,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:49:26,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671953036] [2020-09-25 06:49:26,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:49:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:27,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:27,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:27,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:27,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:27,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 06:49:27,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:49:27,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 06:49:27,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:27,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:27,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:49:27,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 06:49:27,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:49:27,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:49:27,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:49:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:27,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:27,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:27,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:49:27,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:27,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:49:27,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:27,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:27,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:49:27,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:49:27,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:49:27,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:27,300 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 06:49:27,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671953036] [2020-09-25 06:49:27,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:49:27,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:49:27,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243715583] [2020-09-25 06:49:27,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:49:27,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:49:27,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:49:27,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:49:27,311 INFO L87 Difference]: Start difference. First operand 178 states and 213 transitions. Second operand 4 states. [2020-09-25 06:49:27,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:49:27,840 INFO L93 Difference]: Finished difference Result 496 states and 601 transitions. [2020-09-25 06:49:27,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:49:27,841 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-09-25 06:49:27,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:49:27,845 INFO L225 Difference]: With dead ends: 496 [2020-09-25 06:49:27,845 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 06:49:27,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:49:27,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 06:49:27,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 270. [2020-09-25 06:49:27,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-09-25 06:49:27,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 323 transitions. [2020-09-25 06:49:27,888 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 323 transitions. Word has length 23 [2020-09-25 06:49:27,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:49:27,888 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 323 transitions. [2020-09-25 06:49:27,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:49:27,890 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 323 transitions. [2020-09-25 06:49:27,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-25 06:49:27,892 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:49:27,892 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] [2020-09-25 06:49:27,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:49:27,893 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:49:27,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:49:27,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1459950525, now seen corresponding path program 1 times [2020-09-25 06:49:27,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:49:27,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728415666] [2020-09-25 06:49:27,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:49:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:27,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:27,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:27,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:27,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 06:49:27,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:49:27,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 06:49:27,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:27,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:27,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:49:27,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 06:49:27,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:49:27,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:28,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:49:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:28,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:28,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:28,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:49:28,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:28,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:49:28,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:28,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:28,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:49:28,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:49:28,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:49:28,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:28,038 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 06:49:28,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728415666] [2020-09-25 06:49:28,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:49:28,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:49:28,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512466305] [2020-09-25 06:49:28,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:49:28,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:49:28,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:49:28,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:49:28,041 INFO L87 Difference]: Start difference. First operand 270 states and 323 transitions. Second operand 4 states. [2020-09-25 06:49:28,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:49:28,444 INFO L93 Difference]: Finished difference Result 541 states and 657 transitions. [2020-09-25 06:49:28,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:49:28,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-09-25 06:49:28,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:49:28,447 INFO L225 Difference]: With dead ends: 541 [2020-09-25 06:49:28,447 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 06:49:28,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:49:28,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 06:49:28,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 274. [2020-09-25 06:49:28,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-25 06:49:28,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 327 transitions. [2020-09-25 06:49:28,464 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 327 transitions. Word has length 31 [2020-09-25 06:49:28,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:49:28,464 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 327 transitions. [2020-09-25 06:49:28,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:49:28,465 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 327 transitions. [2020-09-25 06:49:28,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 06:49:28,467 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:49:28,467 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 06:49:28,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:49:28,468 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:49:28,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:49:28,468 INFO L82 PathProgramCache]: Analyzing trace with hash -47890514, now seen corresponding path program 1 times [2020-09-25 06:49:28,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:49:28,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768524387] [2020-09-25 06:49:28,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:49:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:28,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:28,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:28,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:28,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 06:49:28,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:49:28,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 06:49:28,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:28,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:28,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:49:28,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 06:49:28,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:49:28,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:28,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:49:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:28,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:28,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:28,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:49:28,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:28,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:49:28,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:28,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:49:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:49:28,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:49:28,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:28,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:49:28,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768524387] [2020-09-25 06:49:28,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:49:28,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:49:28,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587459688] [2020-09-25 06:49:28,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:49:28,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:49:28,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:49:28,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:49:28,605 INFO L87 Difference]: Start difference. First operand 274 states and 327 transitions. Second operand 4 states. [2020-09-25 06:49:28,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:49:28,885 INFO L93 Difference]: Finished difference Result 486 states and 586 transitions. [2020-09-25 06:49:28,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:49:28,886 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-09-25 06:49:28,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:49:28,889 INFO L225 Difference]: With dead ends: 486 [2020-09-25 06:49:28,889 INFO L226 Difference]: Without dead ends: 225 [2020-09-25 06:49:28,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:49:28,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-09-25 06:49:28,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2020-09-25 06:49:28,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-09-25 06:49:28,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 267 transitions. [2020-09-25 06:49:28,902 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 267 transitions. Word has length 40 [2020-09-25 06:49:28,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:49:28,903 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 267 transitions. [2020-09-25 06:49:28,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:49:28,903 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 267 transitions. [2020-09-25 06:49:28,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 06:49:28,905 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:49:28,905 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-25 06:49:28,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:49:28,910 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:49:28,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:49:28,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1667007108, now seen corresponding path program 1 times [2020-09-25 06:49:28,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:49:28,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280325225] [2020-09-25 06:49:28,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:49:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:28,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:28,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:28,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:49:28,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:28,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 06:49:28,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:28,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:49:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 06:49:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:49:28,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:29,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:49:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:29,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:29,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:29,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:49:29,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:29,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:49:29,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:29,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:29,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:49:29,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:49:29,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:49:29,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:29,046 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:49:29,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280325225] [2020-09-25 06:49:29,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:49:29,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:49:29,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129990748] [2020-09-25 06:49:29,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:49:29,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:49:29,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:49:29,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:49:29,049 INFO L87 Difference]: Start difference. First operand 223 states and 267 transitions. Second operand 4 states. [2020-09-25 06:49:29,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:49:29,214 INFO L93 Difference]: Finished difference Result 384 states and 461 transitions. [2020-09-25 06:49:29,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:49:29,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-09-25 06:49:29,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:49:29,217 INFO L225 Difference]: With dead ends: 384 [2020-09-25 06:49:29,217 INFO L226 Difference]: Without dead ends: 174 [2020-09-25 06:49:29,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:49:29,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-09-25 06:49:29,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-09-25 06:49:29,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-25 06:49:29,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 204 transitions. [2020-09-25 06:49:29,231 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 204 transitions. Word has length 43 [2020-09-25 06:49:29,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:49:29,234 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 204 transitions. [2020-09-25 06:49:29,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:49:29,234 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 204 transitions. [2020-09-25 06:49:29,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 06:49:29,239 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:49:29,240 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-25 06:49:29,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:49:29,240 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:49:29,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:49:29,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1459500481, now seen corresponding path program 1 times [2020-09-25 06:49:29,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:49:29,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438133497] [2020-09-25 06:49:29,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:49:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:29,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:29,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:29,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 06:49:29,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:29,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 06:49:29,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:29,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:29,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:49:29,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 06:49:29,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 06:49:29,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:29,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:49:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:29,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:29,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:29,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:49:29,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:29,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:49:29,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:29,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:29,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:49:29,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:49:29,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:49:29,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:29,387 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:49:29,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438133497] [2020-09-25 06:49:29,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:49:29,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:49:29,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079051544] [2020-09-25 06:49:29,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:49:29,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:49:29,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:49:29,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:49:29,411 INFO L87 Difference]: Start difference. First operand 174 states and 204 transitions. Second operand 4 states. [2020-09-25 06:49:29,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:49:29,758 INFO L93 Difference]: Finished difference Result 372 states and 446 transitions. [2020-09-25 06:49:29,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:49:29,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-25 06:49:29,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:49:29,762 INFO L225 Difference]: With dead ends: 372 [2020-09-25 06:49:29,762 INFO L226 Difference]: Without dead ends: 264 [2020-09-25 06:49:29,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:49:29,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-09-25 06:49:29,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 239. [2020-09-25 06:49:29,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 06:49:29,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 282 transitions. [2020-09-25 06:49:29,779 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 282 transitions. Word has length 51 [2020-09-25 06:49:29,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:49:29,780 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 282 transitions. [2020-09-25 06:49:29,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:49:29,780 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 282 transitions. [2020-09-25 06:49:29,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 06:49:29,782 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:49:29,783 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-25 06:49:29,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:49:29,783 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:49:29,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:49:29,784 INFO L82 PathProgramCache]: Analyzing trace with hash -389028907, now seen corresponding path program 1 times [2020-09-25 06:49:29,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:49:29,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969126198] [2020-09-25 06:49:29,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:49:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:29,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:29,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:29,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:29,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 06:49:29,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:49:29,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 06:49:29,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:29,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:29,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:49:29,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 06:49:29,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:49:29,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:29,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:49:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:29,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:29,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:29,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:49:29,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:29,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:49:29,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:29,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:29,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:49:29,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:49:29,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:49:29,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:29,976 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:49:29,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969126198] [2020-09-25 06:49:29,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:49:29,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:49:29,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776119725] [2020-09-25 06:49:29,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:49:29,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:49:29,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:49:29,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:49:29,980 INFO L87 Difference]: Start difference. First operand 239 states and 282 transitions. Second operand 4 states. [2020-09-25 06:49:30,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:49:30,202 INFO L93 Difference]: Finished difference Result 389 states and 463 transitions. [2020-09-25 06:49:30,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:49:30,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-09-25 06:49:30,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:49:30,206 INFO L225 Difference]: With dead ends: 389 [2020-09-25 06:49:30,206 INFO L226 Difference]: Without dead ends: 219 [2020-09-25 06:49:30,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:49:30,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-09-25 06:49:30,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2020-09-25 06:49:30,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-25 06:49:30,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 254 transitions. [2020-09-25 06:49:30,219 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 254 transitions. Word has length 52 [2020-09-25 06:49:30,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:49:30,219 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 254 transitions. [2020-09-25 06:49:30,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:49:30,219 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 254 transitions. [2020-09-25 06:49:30,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 06:49:30,220 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:49:30,220 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-25 06:49:30,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:49:30,221 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:49:30,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:49:30,221 INFO L82 PathProgramCache]: Analyzing trace with hash 910217494, now seen corresponding path program 1 times [2020-09-25 06:49:30,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:49:30,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [578384855] [2020-09-25 06:49:30,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:49:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:30,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:30,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:30,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 06:49:30,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:30,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 06:49:30,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:30,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:30,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:49:30,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 06:49:30,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:49:30,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:30,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:49:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:30,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:30,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:30,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:49:30,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:30,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:49:30,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:30,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:30,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:49:30,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:49:30,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:49:30,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:30,328 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:49:30,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [578384855] [2020-09-25 06:49:30,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:49:30,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:49:30,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670530564] [2020-09-25 06:49:30,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:49:30,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:49:30,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:49:30,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:49:30,331 INFO L87 Difference]: Start difference. First operand 217 states and 254 transitions. Second operand 4 states. [2020-09-25 06:49:30,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:49:30,575 INFO L93 Difference]: Finished difference Result 322 states and 377 transitions. [2020-09-25 06:49:30,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:49:30,576 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-09-25 06:49:30,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:49:30,578 INFO L225 Difference]: With dead ends: 322 [2020-09-25 06:49:30,580 INFO L226 Difference]: Without dead ends: 174 [2020-09-25 06:49:30,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:49:30,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-09-25 06:49:30,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-09-25 06:49:30,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-25 06:49:30,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 198 transitions. [2020-09-25 06:49:30,592 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 198 transitions. Word has length 54 [2020-09-25 06:49:30,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:49:30,592 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 198 transitions. [2020-09-25 06:49:30,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:49:30,593 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 198 transitions. [2020-09-25 06:49:30,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 06:49:30,594 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:49:30,594 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-25 06:49:30,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:49:30,595 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:49:30,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:49:30,596 INFO L82 PathProgramCache]: Analyzing trace with hash 57784286, now seen corresponding path program 1 times [2020-09-25 06:49:30,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:49:30,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894331277] [2020-09-25 06:49:30,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:49:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:30,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:30,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:30,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 06:49:30,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:30,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 06:49:30,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:30,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:30,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:49:30,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 06:49:30,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:49:30,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:30,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:49:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:30,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:30,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:30,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:49:30,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:30,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:49:30,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:30,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:30,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:49:30,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:49:30,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:49:30,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:30,721 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:49:30,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894331277] [2020-09-25 06:49:30,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:49:30,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:49:30,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960614468] [2020-09-25 06:49:30,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:49:30,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:49:30,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:49:30,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:49:30,729 INFO L87 Difference]: Start difference. First operand 174 states and 198 transitions. Second operand 4 states. [2020-09-25 06:49:30,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:49:30,950 INFO L93 Difference]: Finished difference Result 176 states and 199 transitions. [2020-09-25 06:49:30,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:49:30,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2020-09-25 06:49:30,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:49:30,952 INFO L225 Difference]: With dead ends: 176 [2020-09-25 06:49:30,953 INFO L226 Difference]: Without dead ends: 171 [2020-09-25 06:49:30,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:49:30,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-25 06:49:30,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-09-25 06:49:30,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-09-25 06:49:30,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 194 transitions. [2020-09-25 06:49:30,961 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 194 transitions. Word has length 55 [2020-09-25 06:49:30,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:49:30,962 INFO L479 AbstractCegarLoop]: Abstraction has 171 states and 194 transitions. [2020-09-25 06:49:30,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:49:30,963 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 194 transitions. [2020-09-25 06:49:30,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 06:49:30,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:49:30,964 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-25 06:49:30,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 06:49:30,964 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:49:30,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:49:30,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1987485698, now seen corresponding path program 1 times [2020-09-25 06:49:30,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:49:30,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693396971] [2020-09-25 06:49:30,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:49:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:30,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:31,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:31,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 06:49:31,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:31,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 06:49:31,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:31,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:49:31,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 06:49:31,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:49:31,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:49:31,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:49:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:49:31,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:49:31,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:49:31,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:49:31,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:49:31,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:49:31,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:49:31,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:49:31,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:49:31,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:49:31,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:49:31,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:49:31,084 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:49:31,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1693396971] [2020-09-25 06:49:31,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:49:31,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:49:31,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077662474] [2020-09-25 06:49:31,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:49:31,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:49:31,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:49:31,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:49:31,087 INFO L87 Difference]: Start difference. First operand 171 states and 194 transitions. Second operand 4 states. [2020-09-25 06:49:31,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:49:31,273 INFO L93 Difference]: Finished difference Result 263 states and 301 transitions. [2020-09-25 06:49:31,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:49:31,273 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-09-25 06:49:31,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:49:31,274 INFO L225 Difference]: With dead ends: 263 [2020-09-25 06:49:31,274 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:49:31,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:49:31,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:49:31,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:49:31,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:49:31,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:49:31,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2020-09-25 06:49:31,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:49:31,276 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:49:31,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:49:31,277 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:49:31,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:49:31,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 06:49:31,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:49:31,639 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:49:31,639 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 06:49:31,640 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~m_update~0 |old(~m_update~0)|) (= ~m_initSign~0 |old(~m_initSign~0)|) (= ~m_sign~0 |old(~m_sign~0)|) (= ~m_verify~0 |old(~m_verify~0)|) (= ~m_Signature~0 |old(~m_Signature~0)|) (= ~m_initVerify~0 |old(~m_initVerify~0)|)) [2020-09-25 06:49:31,640 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 06:49:31,640 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 06:49:31,640 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 06:49:31,640 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 06:49:31,641 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:49:31,643 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:49:31,643 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 06:49:31,643 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 06:49:31,643 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:49:31,643 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 390) no Hoare annotation was computed. [2020-09-25 06:49:31,643 INFO L268 CegarLoopResult]: For program point L366(lines 366 377) no Hoare annotation was computed. [2020-09-25 06:49:31,643 INFO L268 CegarLoopResult]: For program point L300(line 300) no Hoare annotation was computed. [2020-09-25 06:49:31,646 INFO L268 CegarLoopResult]: For program point L300-1(lines 300 315) no Hoare annotation was computed. [2020-09-25 06:49:31,646 INFO L268 CegarLoopResult]: For program point L234(lines 234 245) no Hoare annotation was computed. [2020-09-25 06:49:31,646 INFO L268 CegarLoopResult]: For program point L300-2(line 300) no Hoare annotation was computed. [2020-09-25 06:49:31,647 INFO L268 CegarLoopResult]: For program point L300-3(line 300) no Hoare annotation was computed. [2020-09-25 06:49:31,647 INFO L268 CegarLoopResult]: For program point L102(lines 102 113) no Hoare annotation was computed. [2020-09-25 06:49:31,647 INFO L268 CegarLoopResult]: For program point L334(lines 334 345) no Hoare annotation was computed. [2020-09-25 06:49:31,647 INFO L268 CegarLoopResult]: For program point L268(line 268) no Hoare annotation was computed. [2020-09-25 06:49:31,647 INFO L268 CegarLoopResult]: For program point L202(lines 202 213) no Hoare annotation was computed. [2020-09-25 06:49:31,647 INFO L268 CegarLoopResult]: For program point L70(lines 70 72) no Hoare annotation was computed. [2020-09-25 06:49:31,647 INFO L268 CegarLoopResult]: For program point L368(line 368) no Hoare annotation was computed. [2020-09-25 06:49:31,647 INFO L268 CegarLoopResult]: For program point L302(lines 302 313) no Hoare annotation was computed. [2020-09-25 06:49:31,648 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 390) no Hoare annotation was computed. [2020-09-25 06:49:31,648 INFO L268 CegarLoopResult]: For program point L170(lines 170 172) no Hoare annotation was computed. [2020-09-25 06:49:31,648 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-25 06:49:31,648 INFO L268 CegarLoopResult]: For program point L270(lines 270 272) no Hoare annotation was computed. [2020-09-25 06:49:31,648 INFO L268 CegarLoopResult]: For program point L138(lines 138 140) no Hoare annotation was computed. [2020-09-25 06:49:31,648 INFO L268 CegarLoopResult]: For program point L370(lines 370 372) no Hoare annotation was computed. [2020-09-25 06:49:31,648 INFO L268 CegarLoopResult]: For program point L238(lines 238 240) no Hoare annotation was computed. [2020-09-25 06:49:31,649 INFO L268 CegarLoopResult]: For program point L106(lines 106 108) no Hoare annotation was computed. [2020-09-25 06:49:31,649 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-25 06:49:31,649 INFO L264 CegarLoopResult]: At program point L371(lines 13 390) the Hoare annotation is: false [2020-09-25 06:49:31,649 INFO L268 CegarLoopResult]: For program point L338(lines 338 340) no Hoare annotation was computed. [2020-09-25 06:49:31,649 INFO L268 CegarLoopResult]: For program point L206(lines 206 208) no Hoare annotation was computed. [2020-09-25 06:49:31,649 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-25 06:49:31,650 INFO L268 CegarLoopResult]: For program point L306(lines 306 308) no Hoare annotation was computed. [2020-09-25 06:49:31,651 INFO L268 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-09-25 06:49:31,651 INFO L268 CegarLoopResult]: For program point L274(line 274) no Hoare annotation was computed. [2020-09-25 06:49:31,652 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-25 06:49:31,652 INFO L268 CegarLoopResult]: For program point L374(line 374) no Hoare annotation was computed. [2020-09-25 06:49:31,652 INFO L268 CegarLoopResult]: For program point L242(line 242) no Hoare annotation was computed. [2020-09-25 06:49:31,652 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-09-25 06:49:31,652 INFO L268 CegarLoopResult]: For program point L342(line 342) no Hoare annotation was computed. [2020-09-25 06:49:31,653 INFO L268 CegarLoopResult]: For program point L276(line 276) no Hoare annotation was computed. [2020-09-25 06:49:31,653 INFO L268 CegarLoopResult]: For program point L210(line 210) no Hoare annotation was computed. [2020-09-25 06:49:31,653 INFO L268 CegarLoopResult]: For program point L376(line 376) no Hoare annotation was computed. [2020-09-25 06:49:31,653 INFO L268 CegarLoopResult]: For program point L310(line 310) no Hoare annotation was computed. [2020-09-25 06:49:31,653 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-25 06:49:31,654 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 389) no Hoare annotation was computed. [2020-09-25 06:49:31,654 INFO L268 CegarLoopResult]: For program point L344(line 344) no Hoare annotation was computed. [2020-09-25 06:49:31,654 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-09-25 06:49:31,655 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-25 06:49:31,655 INFO L268 CegarLoopResult]: For program point L47(lines 47 98) no Hoare annotation was computed. [2020-09-25 06:49:31,655 INFO L268 CegarLoopResult]: For program point L80-1(lines 80 95) no Hoare annotation was computed. [2020-09-25 06:49:31,655 INFO L268 CegarLoopResult]: For program point L80-2(line 80) no Hoare annotation was computed. [2020-09-25 06:49:31,655 INFO L268 CegarLoopResult]: For program point L80-3(line 80) no Hoare annotation was computed. [2020-09-25 06:49:31,655 INFO L268 CegarLoopResult]: For program point L312(line 312) no Hoare annotation was computed. [2020-09-25 06:49:31,655 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-25 06:49:31,656 INFO L268 CegarLoopResult]: For program point L48-1(lines 48 63) no Hoare annotation was computed. [2020-09-25 06:49:31,656 INFO L268 CegarLoopResult]: For program point L48-2(line 48) no Hoare annotation was computed. [2020-09-25 06:49:31,656 INFO L268 CegarLoopResult]: For program point L48-3(line 48) no Hoare annotation was computed. [2020-09-25 06:49:31,657 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-25 06:49:31,657 INFO L268 CegarLoopResult]: For program point L148-1(lines 148 163) no Hoare annotation was computed. [2020-09-25 06:49:31,657 INFO L268 CegarLoopResult]: For program point L82(lines 82 93) no Hoare annotation was computed. [2020-09-25 06:49:31,658 INFO L268 CegarLoopResult]: For program point L148-2(line 148) no Hoare annotation was computed. [2020-09-25 06:49:31,658 INFO L268 CegarLoopResult]: For program point L148-3(line 148) no Hoare annotation was computed. [2020-09-25 06:49:31,658 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 06:49:31,658 INFO L268 CegarLoopResult]: For program point L248(line 248) no Hoare annotation was computed. [2020-09-25 06:49:31,658 INFO L268 CegarLoopResult]: For program point L248-1(lines 248 263) no Hoare annotation was computed. [2020-09-25 06:49:31,658 INFO L268 CegarLoopResult]: For program point L248-2(line 248) no Hoare annotation was computed. [2020-09-25 06:49:31,658 INFO L268 CegarLoopResult]: For program point L248-3(line 248) no Hoare annotation was computed. [2020-09-25 06:49:31,659 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-25 06:49:31,659 INFO L268 CegarLoopResult]: For program point L116-1(lines 116 131) no Hoare annotation was computed. [2020-09-25 06:49:31,659 INFO L268 CegarLoopResult]: For program point L50(lines 50 61) no Hoare annotation was computed. [2020-09-25 06:49:31,659 INFO L268 CegarLoopResult]: For program point L116-2(line 116) no Hoare annotation was computed. [2020-09-25 06:49:31,660 INFO L268 CegarLoopResult]: For program point L116-3(line 116) no Hoare annotation was computed. [2020-09-25 06:49:31,662 INFO L264 CegarLoopResult]: At program point L381(lines 22 385) the Hoare annotation is: (or (<= main_~q~0 0) (and (<= 3 main_~q~0) (= 2 main_~this_state~0) (<= main_~q~0 3)) (and (<= main_~this_state~0 0) (<= main_~q~0 2)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2020-09-25 06:49:31,662 INFO L268 CegarLoopResult]: For program point L348(line 348) no Hoare annotation was computed. [2020-09-25 06:49:31,662 INFO L268 CegarLoopResult]: For program point L348-1(lines 348 363) no Hoare annotation was computed. [2020-09-25 06:49:31,662 INFO L268 CegarLoopResult]: For program point L348-2(line 348) no Hoare annotation was computed. [2020-09-25 06:49:31,662 INFO L268 CegarLoopResult]: For program point L348-3(line 348) no Hoare annotation was computed. [2020-09-25 06:49:31,663 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-09-25 06:49:31,663 INFO L268 CegarLoopResult]: For program point L183(lines 183 282) no Hoare annotation was computed. [2020-09-25 06:49:31,663 INFO L268 CegarLoopResult]: For program point L216-1(lines 216 231) no Hoare annotation was computed. [2020-09-25 06:49:31,663 INFO L268 CegarLoopResult]: For program point L150(lines 150 161) no Hoare annotation was computed. [2020-09-25 06:49:31,663 INFO L268 CegarLoopResult]: For program point L216-2(line 216) no Hoare annotation was computed. [2020-09-25 06:49:31,663 INFO L268 CegarLoopResult]: For program point L216-3(line 216) no Hoare annotation was computed. [2020-09-25 06:49:31,663 INFO L268 CegarLoopResult]: For program point L316(line 316) no Hoare annotation was computed. [2020-09-25 06:49:31,664 INFO L268 CegarLoopResult]: For program point L283(lines 283 382) no Hoare annotation was computed. [2020-09-25 06:49:31,664 INFO L268 CegarLoopResult]: For program point L316-1(lines 316 331) no Hoare annotation was computed. [2020-09-25 06:49:31,679 INFO L268 CegarLoopResult]: For program point L250(lines 250 261) no Hoare annotation was computed. [2020-09-25 06:49:31,679 INFO L268 CegarLoopResult]: For program point L316-2(line 316) no Hoare annotation was computed. [2020-09-25 06:49:31,679 INFO L268 CegarLoopResult]: For program point L316-3(line 316) no Hoare annotation was computed. [2020-09-25 06:49:31,679 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-25 06:49:31,679 INFO L268 CegarLoopResult]: For program point L184-1(lines 184 199) no Hoare annotation was computed. [2020-09-25 06:49:31,680 INFO L268 CegarLoopResult]: For program point L118(lines 118 129) no Hoare annotation was computed. [2020-09-25 06:49:31,680 INFO L268 CegarLoopResult]: For program point L184-2(line 184) no Hoare annotation was computed. [2020-09-25 06:49:31,680 INFO L268 CegarLoopResult]: For program point L184-3(line 184) no Hoare annotation was computed. [2020-09-25 06:49:31,680 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 06:49:31,680 INFO L268 CegarLoopResult]: For program point L350(lines 350 361) no Hoare annotation was computed. [2020-09-25 06:49:31,680 INFO L268 CegarLoopResult]: For program point L284(line 284) no Hoare annotation was computed. [2020-09-25 06:49:31,680 INFO L268 CegarLoopResult]: For program point L284-1(lines 284 299) no Hoare annotation was computed. [2020-09-25 06:49:31,680 INFO L268 CegarLoopResult]: For program point L218(lines 218 229) no Hoare annotation was computed. [2020-09-25 06:49:31,681 INFO L268 CegarLoopResult]: For program point L284-2(line 284) no Hoare annotation was computed. [2020-09-25 06:49:31,681 INFO L268 CegarLoopResult]: For program point L284-3(line 284) no Hoare annotation was computed. [2020-09-25 06:49:31,681 INFO L268 CegarLoopResult]: For program point L86(lines 86 88) no Hoare annotation was computed. [2020-09-25 06:49:31,681 INFO L268 CegarLoopResult]: For program point L318(lines 318 329) no Hoare annotation was computed. [2020-09-25 06:49:31,681 INFO L268 CegarLoopResult]: For program point L252(line 252) no Hoare annotation was computed. [2020-09-25 06:49:31,681 INFO L268 CegarLoopResult]: For program point L186(lines 186 197) no Hoare annotation was computed. [2020-09-25 06:49:31,681 INFO L268 CegarLoopResult]: For program point L54(lines 54 56) no Hoare annotation was computed. [2020-09-25 06:49:31,681 INFO L268 CegarLoopResult]: For program point L352(line 352) no Hoare annotation was computed. [2020-09-25 06:49:31,682 INFO L268 CegarLoopResult]: For program point L286(lines 286 297) no Hoare annotation was computed. [2020-09-25 06:49:31,682 INFO L268 CegarLoopResult]: For program point L154(lines 154 156) no Hoare annotation was computed. [2020-09-25 06:49:31,684 INFO L264 CegarLoopResult]: At program point L22-2(lines 22 385) the Hoare annotation is: (or (<= main_~q~0 0) (and (<= 3 main_~q~0) (= 2 main_~this_state~0) (<= main_~q~0 3)) (and (<= main_~this_state~0 0) (<= main_~q~0 2)) (and (<= 4 main_~q~0) (= 3 main_~this_state~0))) [2020-09-25 06:49:31,684 INFO L268 CegarLoopResult]: For program point L22-3(lines 22 385) no Hoare annotation was computed. [2020-09-25 06:49:31,684 INFO L268 CegarLoopResult]: For program point L254(lines 254 256) no Hoare annotation was computed. [2020-09-25 06:49:31,685 INFO L268 CegarLoopResult]: For program point L122(lines 122 124) no Hoare annotation was computed. [2020-09-25 06:49:31,685 INFO L268 CegarLoopResult]: For program point L354(lines 354 356) no Hoare annotation was computed. [2020-09-25 06:49:31,685 INFO L268 CegarLoopResult]: For program point L222(lines 222 224) no Hoare annotation was computed. [2020-09-25 06:49:31,685 INFO L268 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-09-25 06:49:31,685 INFO L268 CegarLoopResult]: For program point L322(lines 322 324) no Hoare annotation was computed. [2020-09-25 06:49:31,685 INFO L268 CegarLoopResult]: For program point L190(lines 190 192) no Hoare annotation was computed. [2020-09-25 06:49:31,685 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-25 06:49:31,686 INFO L268 CegarLoopResult]: For program point L290(lines 290 292) no Hoare annotation was computed. [2020-09-25 06:49:31,687 INFO L268 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-09-25 06:49:31,687 INFO L268 CegarLoopResult]: For program point L258(line 258) no Hoare annotation was computed. [2020-09-25 06:49:31,687 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-09-25 06:49:31,687 INFO L268 CegarLoopResult]: For program point L27(lines 27 46) no Hoare annotation was computed. [2020-09-25 06:49:31,688 INFO L268 CegarLoopResult]: For program point L358(line 358) no Hoare annotation was computed. [2020-09-25 06:49:31,688 INFO L268 CegarLoopResult]: For program point L226(line 226) no Hoare annotation was computed. [2020-09-25 06:49:31,688 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 06:49:31,688 INFO L268 CegarLoopResult]: For program point L28-1(lines 28 43) no Hoare annotation was computed. [2020-09-25 06:49:31,688 INFO L268 CegarLoopResult]: For program point L28-2(line 28) no Hoare annotation was computed. [2020-09-25 06:49:31,688 INFO L268 CegarLoopResult]: For program point L28-3(line 28) no Hoare annotation was computed. [2020-09-25 06:49:31,688 INFO L268 CegarLoopResult]: For program point L326(line 326) no Hoare annotation was computed. [2020-09-25 06:49:31,688 INFO L268 CegarLoopResult]: For program point L260(line 260) no Hoare annotation was computed. [2020-09-25 06:49:31,689 INFO L268 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-09-25 06:49:31,689 INFO L268 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-09-25 06:49:31,689 INFO L268 CegarLoopResult]: For program point L360(line 360) no Hoare annotation was computed. [2020-09-25 06:49:31,689 INFO L268 CegarLoopResult]: For program point L294(line 294) no Hoare annotation was computed. [2020-09-25 06:49:31,689 INFO L268 CegarLoopResult]: For program point L228(line 228) no Hoare annotation was computed. [2020-09-25 06:49:31,689 INFO L268 CegarLoopResult]: For program point L30(lines 30 41) no Hoare annotation was computed. [2020-09-25 06:49:31,689 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 390) the Hoare annotation is: true [2020-09-25 06:49:31,690 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-25 06:49:31,690 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-25 06:49:31,690 INFO L268 CegarLoopResult]: For program point L64-1(lines 64 79) no Hoare annotation was computed. [2020-09-25 06:49:31,690 INFO L268 CegarLoopResult]: For program point L64-2(line 64) no Hoare annotation was computed. [2020-09-25 06:49:31,690 INFO L268 CegarLoopResult]: For program point L64-3(line 64) no Hoare annotation was computed. [2020-09-25 06:49:31,690 INFO L268 CegarLoopResult]: For program point L296(line 296) no Hoare annotation was computed. [2020-09-25 06:49:31,690 INFO L268 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-09-25 06:49:31,691 INFO L268 CegarLoopResult]: For program point L164-1(lines 164 179) no Hoare annotation was computed. [2020-09-25 06:49:31,691 INFO L268 CegarLoopResult]: For program point L164-2(line 164) no Hoare annotation was computed. [2020-09-25 06:49:31,691 INFO L268 CegarLoopResult]: For program point L164-3(line 164) no Hoare annotation was computed. [2020-09-25 06:49:31,691 INFO L268 CegarLoopResult]: For program point L264(line 264) no Hoare annotation was computed. [2020-09-25 06:49:31,691 INFO L268 CegarLoopResult]: For program point L264-1(lines 264 279) no Hoare annotation was computed. [2020-09-25 06:49:31,691 INFO L268 CegarLoopResult]: For program point L264-2(line 264) no Hoare annotation was computed. [2020-09-25 06:49:31,691 INFO L268 CegarLoopResult]: For program point L264-3(line 264) no Hoare annotation was computed. [2020-09-25 06:49:31,692 INFO L268 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-09-25 06:49:31,692 INFO L268 CegarLoopResult]: For program point L99(lines 99 182) no Hoare annotation was computed. [2020-09-25 06:49:31,692 INFO L268 CegarLoopResult]: For program point L132-1(lines 132 147) no Hoare annotation was computed. [2020-09-25 06:49:31,692 INFO L268 CegarLoopResult]: For program point L66(lines 66 77) no Hoare annotation was computed. [2020-09-25 06:49:31,692 INFO L268 CegarLoopResult]: For program point L132-2(line 132) no Hoare annotation was computed. [2020-09-25 06:49:31,692 INFO L268 CegarLoopResult]: For program point L132-3(line 132) no Hoare annotation was computed. [2020-09-25 06:49:31,692 INFO L268 CegarLoopResult]: For program point L364(line 364) no Hoare annotation was computed. [2020-09-25 06:49:31,693 INFO L268 CegarLoopResult]: For program point L364-1(lines 364 379) no Hoare annotation was computed. [2020-09-25 06:49:31,693 INFO L268 CegarLoopResult]: For program point L364-2(line 364) no Hoare annotation was computed. [2020-09-25 06:49:31,693 INFO L268 CegarLoopResult]: For program point L364-3(line 364) no Hoare annotation was computed. [2020-09-25 06:49:31,693 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-09-25 06:49:31,693 INFO L268 CegarLoopResult]: For program point L232-1(lines 232 247) no Hoare annotation was computed. [2020-09-25 06:49:31,693 INFO L268 CegarLoopResult]: For program point L166(lines 166 177) no Hoare annotation was computed. [2020-09-25 06:49:31,693 INFO L268 CegarLoopResult]: For program point L232-2(line 232) no Hoare annotation was computed. [2020-09-25 06:49:31,693 INFO L268 CegarLoopResult]: For program point L232-3(line 232) no Hoare annotation was computed. [2020-09-25 06:49:31,693 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-25 06:49:31,694 INFO L268 CegarLoopResult]: For program point L100-1(lines 100 115) no Hoare annotation was computed. [2020-09-25 06:49:31,694 INFO L268 CegarLoopResult]: For program point L34(lines 34 36) no Hoare annotation was computed. [2020-09-25 06:49:31,694 INFO L268 CegarLoopResult]: For program point L100-2(line 100) no Hoare annotation was computed. [2020-09-25 06:49:31,694 INFO L268 CegarLoopResult]: For program point L100-3(line 100) no Hoare annotation was computed. [2020-09-25 06:49:31,694 INFO L268 CegarLoopResult]: For program point L332(line 332) no Hoare annotation was computed. [2020-09-25 06:49:31,694 INFO L268 CegarLoopResult]: For program point L332-1(lines 332 347) no Hoare annotation was computed. [2020-09-25 06:49:31,694 INFO L268 CegarLoopResult]: For program point L266(lines 266 277) no Hoare annotation was computed. [2020-09-25 06:49:31,694 INFO L268 CegarLoopResult]: For program point L332-2(line 332) no Hoare annotation was computed. [2020-09-25 06:49:31,694 INFO L268 CegarLoopResult]: For program point L332-3(line 332) no Hoare annotation was computed. [2020-09-25 06:49:31,695 INFO L268 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-09-25 06:49:31,695 INFO L268 CegarLoopResult]: For program point L200-1(lines 200 215) no Hoare annotation was computed. [2020-09-25 06:49:31,695 INFO L268 CegarLoopResult]: For program point L134(lines 134 145) no Hoare annotation was computed. [2020-09-25 06:49:31,695 INFO L268 CegarLoopResult]: For program point L200-2(line 200) no Hoare annotation was computed. [2020-09-25 06:49:31,695 INFO L268 CegarLoopResult]: For program point L200-3(line 200) no Hoare annotation was computed. [2020-09-25 06:49:31,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:49:31 BoogieIcfgContainer [2020-09-25 06:49:31,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:49:31,732 INFO L168 Benchmark]: Toolchain (without parser) took 6745.82 ms. Allocated memory was 145.2 MB in the beginning and 294.6 MB in the end (delta: 149.4 MB). Free memory was 101.1 MB in the beginning and 260.9 MB in the end (delta: -159.9 MB). Peak memory consumption was 159.7 MB. Max. memory is 7.1 GB. [2020-09-25 06:49:31,733 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 06:49:31,737 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.66 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 100.4 MB in the beginning and 179.1 MB in the end (delta: -78.8 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:49:31,738 INFO L168 Benchmark]: Boogie Preprocessor took 56.38 ms. Allocated memory is still 201.3 MB. Free memory was 179.1 MB in the beginning and 177.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-25 06:49:31,742 INFO L168 Benchmark]: RCFGBuilder took 705.54 ms. Allocated memory is still 201.3 MB. Free memory was 177.1 MB in the beginning and 140.6 MB in the end (delta: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 7.1 GB. [2020-09-25 06:49:31,743 INFO L168 Benchmark]: TraceAbstraction took 5447.25 ms. Allocated memory was 201.3 MB in the beginning and 294.6 MB in the end (delta: 93.3 MB). Free memory was 140.6 MB in the beginning and 260.9 MB in the end (delta: -120.3 MB). Peak memory consumption was 143.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:49:31,752 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 522.66 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 100.4 MB in the beginning and 179.1 MB in the end (delta: -78.8 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.38 ms. Allocated memory is still 201.3 MB. Free memory was 179.1 MB in the beginning and 177.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 705.54 ms. Allocated memory is still 201.3 MB. Free memory was 177.1 MB in the beginning and 140.6 MB in the end (delta: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5447.25 ms. Allocated memory was 201.3 MB in the beginning and 294.6 MB in the end (delta: 93.3 MB). Free memory was 140.6 MB in the beginning and 260.9 MB in the end (delta: -120.3 MB). Peak memory consumption was 143.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 389]: 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: 22]: Loop Invariant Derived loop invariant: ((q <= 0 || ((3 <= q && 2 == this_state) && q <= 3)) || (this_state <= 0 && q <= 2)) || (4 <= q && 3 == this_state) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((q <= 0 || ((3 <= q && 2 == this_state) && q <= 3)) || (this_state <= 0 && q <= 2)) || (4 <= q && 3 == this_state) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 191 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.9s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1908 SDtfs, 2810 SDslu, 111 SDs, 0 SdLazy, 1268 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 76 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 15 NumberOfFragments, 79 HoareAnnotationTreeSize, 7 FomulaSimplifications, 90 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 194 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 429 NumberOfCodeBlocks, 429 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 419 ConstructedInterpolants, 0 QuantifiedInterpolants, 35473 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 49/49 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...