/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/ssh-simplified/s3_srvr_1a.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:39:11,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:39:11,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:39:11,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:39:11,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:39:11,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:39:11,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:39:11,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:39:11,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:39:11,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:39:11,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:39:11,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:39:11,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:39:11,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:39:11,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:39:11,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:39:11,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:39:11,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:39:11,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:39:11,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:39:11,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:39:11,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:39:11,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:39:11,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:39:11,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:39:11,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:39:11,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:39:11,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:39:11,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:39:11,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:39:11,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:39:11,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:39:11,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:39:11,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:39:11,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:39:11,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:39:11,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:39:11,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:39:11,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:39:11,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:39:11,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:39:11,400 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 06:39:11,437 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:39:11,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:39:11,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:39:11,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:39:11,442 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:39:11,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:39:11,443 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:39:11,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:39:11,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:39:11,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:39:11,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:39:11,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:39:11,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:39:11,444 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:39:11,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:39:11,445 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:39:11,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:39:11,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:39:11,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:39:11,446 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:39:11,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:39:11,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:39:11,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:39:11,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:39:11,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:39:11,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:39:11,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:39:11,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:39:11,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:39:11,449 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 06:39:11,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:39:11,935 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:39:11,943 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:39:11,945 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:39:11,947 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:39:11,948 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2020-09-25 06:39:12,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09be33ca7/e9840949232c467c93406086cebfc1a7/FLAG9d014e04d [2020-09-25 06:39:12,596 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:39:12,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2020-09-25 06:39:12,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09be33ca7/e9840949232c467c93406086cebfc1a7/FLAG9d014e04d [2020-09-25 06:39:12,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09be33ca7/e9840949232c467c93406086cebfc1a7 [2020-09-25 06:39:12,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:39:12,940 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:39:12,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:39:12,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:39:12,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:39:12,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:39:12" (1/1) ... [2020-09-25 06:39:12,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1265c732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:12, skipping insertion in model container [2020-09-25 06:39:12,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:39:12" (1/1) ... [2020-09-25 06:39:12,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:39:13,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:39:13,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:39:13,251 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:39:13,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:39:13,300 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:39:13,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:13 WrapperNode [2020-09-25 06:39:13,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:39:13,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:39:13,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:39:13,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:39:13,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:13" (1/1) ... [2020-09-25 06:39:13,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:13" (1/1) ... [2020-09-25 06:39:13,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:13" (1/1) ... [2020-09-25 06:39:13,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:13" (1/1) ... [2020-09-25 06:39:13,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:13" (1/1) ... [2020-09-25 06:39:13,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:13" (1/1) ... [2020-09-25 06:39:13,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:13" (1/1) ... [2020-09-25 06:39:13,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:39:13,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:39:13,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:39:13,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:39:13,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:13" (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 06:39:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:39:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:39:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:39:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:39:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 06:39:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:39:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 06:39:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:39:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:39:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:39:13,885 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:39:13,886 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:39:13,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:39:13 BoogieIcfgContainer [2020-09-25 06:39:13,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:39:13,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:39:13,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:39:13,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:39:13,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:39:12" (1/3) ... [2020-09-25 06:39:13,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204036b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:39:13, skipping insertion in model container [2020-09-25 06:39:13,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:13" (2/3) ... [2020-09-25 06:39:13,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204036b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:39:13, skipping insertion in model container [2020-09-25 06:39:13,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:39:13" (3/3) ... [2020-09-25 06:39:13,902 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2020-09-25 06:39:13,914 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:39:13,924 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:39:13,954 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:39:13,988 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:39:13,989 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:39:13,989 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:39:13,989 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:39:13,989 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:39:13,989 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:39:13,990 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:39:13,990 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:39:14,016 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-09-25 06:39:14,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-25 06:39:14,025 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:14,026 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] [2020-09-25 06:39:14,027 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:14,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:14,034 INFO L82 PathProgramCache]: Analyzing trace with hash 766781838, now seen corresponding path program 1 times [2020-09-25 06:39:14,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:14,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066058452] [2020-09-25 06:39:14,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:14,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:14,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:14,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 06:39:14,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:14,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 06:39:14,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:14,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:14,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:14,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 06:39:14,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:39:14,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:39:14,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:14,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:14,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:14,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:14,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:14,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:14,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:14,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:14,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:14,333 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 06:39:14,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066058452] [2020-09-25 06:39:14,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:14,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:14,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088529629] [2020-09-25 06:39:14,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:14,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:14,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:14,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:14,370 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2020-09-25 06:39:14,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:14,525 INFO L93 Difference]: Finished difference Result 198 states and 286 transitions. [2020-09-25 06:39:14,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:14,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-09-25 06:39:14,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:14,544 INFO L225 Difference]: With dead ends: 198 [2020-09-25 06:39:14,545 INFO L226 Difference]: Without dead ends: 128 [2020-09-25 06:39:14,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 06:39:14,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-25 06:39:14,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-09-25 06:39:14,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-25 06:39:14,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 171 transitions. [2020-09-25 06:39:14,616 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 171 transitions. Word has length 26 [2020-09-25 06:39:14,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:14,616 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 171 transitions. [2020-09-25 06:39:14,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:14,617 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 171 transitions. [2020-09-25 06:39:14,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 06:39:14,621 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:14,621 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] [2020-09-25 06:39:14,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:39:14,622 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:14,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:14,622 INFO L82 PathProgramCache]: Analyzing trace with hash -184994456, now seen corresponding path program 1 times [2020-09-25 06:39:14,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:14,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364562927] [2020-09-25 06:39:14,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:14,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:14,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:14,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 06:39:14,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:14,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 06:39:14,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:14,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 06:39:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:39:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:39:14,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:14,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:14,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:14,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:14,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:14,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:14,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:14,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:14,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:14,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:14,790 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 06:39:14,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364562927] [2020-09-25 06:39:14,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:14,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:14,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375026721] [2020-09-25 06:39:14,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:14,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:14,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:14,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:14,795 INFO L87 Difference]: Start difference. First operand 128 states and 171 transitions. Second operand 3 states. [2020-09-25 06:39:14,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:14,883 INFO L93 Difference]: Finished difference Result 233 states and 325 transitions. [2020-09-25 06:39:14,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:14,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-09-25 06:39:14,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:14,887 INFO L225 Difference]: With dead ends: 233 [2020-09-25 06:39:14,888 INFO L226 Difference]: Without dead ends: 177 [2020-09-25 06:39:14,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 06:39:14,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-09-25 06:39:14,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-09-25 06:39:14,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-09-25 06:39:14,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 240 transitions. [2020-09-25 06:39:14,934 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 240 transitions. Word has length 32 [2020-09-25 06:39:14,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:14,937 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 240 transitions. [2020-09-25 06:39:14,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:14,937 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 240 transitions. [2020-09-25 06:39:14,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 06:39:14,939 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:14,941 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] [2020-09-25 06:39:14,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:39:14,942 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:14,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:14,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1532764802, now seen corresponding path program 1 times [2020-09-25 06:39:14,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:14,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481728983] [2020-09-25 06:39:14,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:14,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:15,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 06:39:15,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:15,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 06:39:15,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:15,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 06:39:15,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:39:15,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:39:15,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:15,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:15,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:15,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:15,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:15,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:15,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:15,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:15,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:15,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:15,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:15,127 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 06:39:15,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481728983] [2020-09-25 06:39:15,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:15,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:15,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560031879] [2020-09-25 06:39:15,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:15,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:15,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:15,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:15,131 INFO L87 Difference]: Start difference. First operand 177 states and 240 transitions. Second operand 3 states. [2020-09-25 06:39:15,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:15,283 INFO L93 Difference]: Finished difference Result 331 states and 463 transitions. [2020-09-25 06:39:15,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:15,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-09-25 06:39:15,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:15,289 INFO L225 Difference]: With dead ends: 331 [2020-09-25 06:39:15,289 INFO L226 Difference]: Without dead ends: 226 [2020-09-25 06:39:15,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 06:39:15,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-25 06:39:15,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-25 06:39:15,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-25 06:39:15,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 310 transitions. [2020-09-25 06:39:15,349 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 310 transitions. Word has length 40 [2020-09-25 06:39:15,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:15,349 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 310 transitions. [2020-09-25 06:39:15,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:15,350 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 310 transitions. [2020-09-25 06:39:15,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 06:39:15,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:15,355 INFO L422 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:15,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:39:15,355 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:15,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:15,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1263446161, now seen corresponding path program 1 times [2020-09-25 06:39:15,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:15,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515456890] [2020-09-25 06:39:15,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:15,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:15,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 06:39:15,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:15,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 06:39:15,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:15,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:15,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:15,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 06:39:15,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:39:15,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:15,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:15,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:15,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:15,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:15,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:15,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:15,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:15,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:39:15,486 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 06:39:15,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515456890] [2020-09-25 06:39:15,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:15,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:15,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901464454] [2020-09-25 06:39:15,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:15,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:15,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:15,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:15,492 INFO L87 Difference]: Start difference. First operand 226 states and 310 transitions. Second operand 3 states. [2020-09-25 06:39:15,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:15,617 INFO L93 Difference]: Finished difference Result 487 states and 699 transitions. [2020-09-25 06:39:15,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:15,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-09-25 06:39:15,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:15,620 INFO L225 Difference]: With dead ends: 487 [2020-09-25 06:39:15,620 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 06:39:15,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 06:39:15,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 06:39:15,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 278. [2020-09-25 06:39:15,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-25 06:39:15,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 362 transitions. [2020-09-25 06:39:15,642 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 362 transitions. Word has length 56 [2020-09-25 06:39:15,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:15,642 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 362 transitions. [2020-09-25 06:39:15,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:15,643 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 362 transitions. [2020-09-25 06:39:15,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 06:39:15,646 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:15,646 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:15,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:39:15,647 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:15,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:15,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1348776400, now seen corresponding path program 1 times [2020-09-25 06:39:15,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:15,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849610392] [2020-09-25 06:39:15,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:15,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:15,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 06:39:15,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:15,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 06:39:15,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:15,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:15,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:15,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 06:39:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:39:15,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:15,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:15,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:15,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:15,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:15,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:15,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:15,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:15,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:15,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:15,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:15,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:15,831 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 06:39:15,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849610392] [2020-09-25 06:39:15,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:15,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:15,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309191902] [2020-09-25 06:39:15,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:15,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:15,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:15,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:15,833 INFO L87 Difference]: Start difference. First operand 278 states and 362 transitions. Second operand 3 states. [2020-09-25 06:39:15,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:15,908 INFO L93 Difference]: Finished difference Result 535 states and 708 transitions. [2020-09-25 06:39:15,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:15,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-09-25 06:39:15,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:15,912 INFO L225 Difference]: With dead ends: 535 [2020-09-25 06:39:15,913 INFO L226 Difference]: Without dead ends: 342 [2020-09-25 06:39:15,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 06:39:15,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-25 06:39:15,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 340. [2020-09-25 06:39:15,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-09-25 06:39:15,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 447 transitions. [2020-09-25 06:39:15,935 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 447 transitions. Word has length 70 [2020-09-25 06:39:15,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:15,935 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 447 transitions. [2020-09-25 06:39:15,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:15,936 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 447 transitions. [2020-09-25 06:39:15,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 06:39:15,939 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:15,940 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:15,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:39:15,940 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:15,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:15,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1264034378, now seen corresponding path program 1 times [2020-09-25 06:39:15,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:15,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189332472] [2020-09-25 06:39:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:15,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:16,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:16,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 06:39:16,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:16,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 06:39:16,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:16,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:16,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:16,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 06:39:16,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:39:16,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:39:16,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:16,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:16,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:16,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:16,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:16,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:16,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:16,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:16,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:16,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:16,072 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-25 06:39:16,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189332472] [2020-09-25 06:39:16,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:16,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:16,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238209387] [2020-09-25 06:39:16,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:16,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:16,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:16,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:16,076 INFO L87 Difference]: Start difference. First operand 340 states and 447 transitions. Second operand 3 states. [2020-09-25 06:39:16,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:16,213 INFO L93 Difference]: Finished difference Result 647 states and 876 transitions. [2020-09-25 06:39:16,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:16,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-09-25 06:39:16,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:16,217 INFO L225 Difference]: With dead ends: 647 [2020-09-25 06:39:16,218 INFO L226 Difference]: Without dead ends: 246 [2020-09-25 06:39:16,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 06:39:16,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-09-25 06:39:16,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 243. [2020-09-25 06:39:16,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 06:39:16,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 302 transitions. [2020-09-25 06:39:16,252 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 302 transitions. Word has length 74 [2020-09-25 06:39:16,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:16,254 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 302 transitions. [2020-09-25 06:39:16,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:16,254 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 302 transitions. [2020-09-25 06:39:16,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 06:39:16,259 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:16,260 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:39:16,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:39:16,260 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:16,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:16,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1725408203, now seen corresponding path program 1 times [2020-09-25 06:39:16,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:16,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606047334] [2020-09-25 06:39:16,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:16,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:16,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:16,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:16,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:16,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:16,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:16,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:16,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 06:39:16,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:39:16,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-09-25 06:39:16,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:16,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:16,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:16,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 06:39:16,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 06:39:16,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:16,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:16,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:16,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:16,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:16,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:16,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:16,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:16,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:16,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:16,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:16,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:16,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:16,726 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-25 06:39:16,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606047334] [2020-09-25 06:39:16,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:16,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:16,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095444062] [2020-09-25 06:39:16,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:16,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:16,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:16,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:16,729 INFO L87 Difference]: Start difference. First operand 243 states and 302 transitions. Second operand 3 states. [2020-09-25 06:39:16,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:16,743 INFO L93 Difference]: Finished difference Result 370 states and 439 transitions. [2020-09-25 06:39:16,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:16,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-09-25 06:39:16,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:16,744 INFO L225 Difference]: With dead ends: 370 [2020-09-25 06:39:16,744 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:39:16,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 06:39:16,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:39:16,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:39:16,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:39:16,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:39:16,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2020-09-25 06:39:16,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:16,747 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:39:16,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:16,747 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:39:16,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:39:16,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:39:16,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:39:17,016 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 06:39:17,017 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:39:17,017 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:39:17,017 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 06:39:17,017 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 06:39:17,017 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:39:17,017 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 8 217) no Hoare annotation was computed. [2020-09-25 06:39:17,018 INFO L268 CegarLoopResult]: For program point L151-1(lines 74 183) no Hoare annotation was computed. [2020-09-25 06:39:17,018 INFO L268 CegarLoopResult]: For program point L52(lines 52 193) no Hoare annotation was computed. [2020-09-25 06:39:17,018 INFO L268 CegarLoopResult]: For program point L85-1(lines 74 183) no Hoare annotation was computed. [2020-09-25 06:39:17,018 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 06:39:17,019 INFO L268 CegarLoopResult]: For program point L135(lines 135 139) no Hoare annotation was computed. [2020-09-25 06:39:17,019 INFO L264 CegarLoopResult]: At program point L69(lines 68 185) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 2)) (and .cse0 (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))))) [2020-09-25 06:39:17,019 INFO L268 CegarLoopResult]: For program point L36(lines 36 201) no Hoare annotation was computed. [2020-09-25 06:39:17,019 INFO L268 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-09-25 06:39:17,020 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-25 06:39:17,020 INFO L264 CegarLoopResult]: At program point L53(lines 52 193) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 06:39:17,020 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 06:39:17,020 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-25 06:39:17,020 INFO L268 CegarLoopResult]: For program point L169-1(lines 74 183) no Hoare annotation was computed. [2020-09-25 06:39:17,021 INFO L264 CegarLoopResult]: At program point L37(lines 36 201) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 06:39:17,021 INFO L264 CegarLoopResult]: At program point L120(lines 113 122) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 06:39:17,021 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 8 217) no Hoare annotation was computed. [2020-09-25 06:39:17,021 INFO L268 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-09-25 06:39:17,021 INFO L268 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-09-25 06:39:17,022 INFO L268 CegarLoopResult]: For program point L105(lines 105 123) no Hoare annotation was computed. [2020-09-25 06:39:17,022 INFO L268 CegarLoopResult]: For program point L72(lines 72 183) no Hoare annotation was computed. [2020-09-25 06:39:17,022 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-09-25 06:39:17,022 INFO L268 CegarLoopResult]: For program point L56(lines 56 191) no Hoare annotation was computed. [2020-09-25 06:39:17,022 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-25 06:39:17,022 INFO L268 CegarLoopResult]: For program point L172(lines 172 174) no Hoare annotation was computed. [2020-09-25 06:39:17,023 INFO L268 CegarLoopResult]: For program point L106(lines 106 110) no Hoare annotation was computed. [2020-09-25 06:39:17,023 INFO L264 CegarLoopResult]: At program point L73(lines 72 183) the Hoare annotation is: (and (<= main_~blastFlag~0 3) (<= 8672 main_~s__state~0)) [2020-09-25 06:39:17,023 INFO L268 CegarLoopResult]: For program point L40(lines 40 199) no Hoare annotation was computed. [2020-09-25 06:39:17,023 INFO L264 CegarLoopResult]: At program point L57(lines 56 191) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 06:39:17,023 INFO L264 CegarLoopResult]: At program point L173(lines 8 217) the Hoare annotation is: false [2020-09-25 06:39:17,024 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-25 06:39:17,024 INFO L264 CegarLoopResult]: At program point L41(lines 40 199) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 06:39:17,024 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-25 06:39:17,024 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-25 06:39:17,024 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-09-25 06:39:17,024 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 06:39:17,025 INFO L268 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-09-25 06:39:17,025 INFO L268 CegarLoopResult]: For program point L10-2(line 10) no Hoare annotation was computed. [2020-09-25 06:39:17,025 INFO L268 CegarLoopResult]: For program point L60(lines 60 189) no Hoare annotation was computed. [2020-09-25 06:39:17,026 INFO L264 CegarLoopResult]: At program point L176(lines 22 211) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and .cse0 (<= 8672 main_~s__state~0)) (and (<= 8640 main_~s__state~0) .cse0 (not (= main_~s__hit~0 0))) (<= main_~blastFlag~0 2))) [2020-09-25 06:39:17,026 INFO L268 CegarLoopResult]: For program point L44(lines 44 197) no Hoare annotation was computed. [2020-09-25 06:39:17,026 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 06:39:17,026 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-25 06:39:17,028 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-25 06:39:17,028 INFO L264 CegarLoopResult]: At program point L61(lines 60 189) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 06:39:17,028 INFO L268 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-09-25 06:39:17,028 INFO L264 CegarLoopResult]: At program point L45(lines 44 197) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 06:39:17,029 INFO L268 CegarLoopResult]: For program point L78-1(lines 78 80) no Hoare annotation was computed. [2020-09-25 06:39:17,029 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 06:39:17,029 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 06:39:17,029 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 06:39:17,029 INFO L268 CegarLoopResult]: For program point L29(lines 29 204) no Hoare annotation was computed. [2020-09-25 06:39:17,030 INFO L264 CegarLoopResult]: At program point L112(lines 105 123) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 06:39:17,030 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-25 06:39:17,030 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 06:39:17,030 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-25 06:39:17,030 INFO L268 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-09-25 06:39:17,031 INFO L268 CegarLoopResult]: For program point L162-1(lines 162 164) no Hoare annotation was computed. [2020-09-25 06:39:17,031 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 215) no Hoare annotation was computed. [2020-09-25 06:39:17,031 INFO L264 CegarLoopResult]: At program point L30(lines 29 204) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 06:39:17,031 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 8 217) the Hoare annotation is: true [2020-09-25 06:39:17,032 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 06:39:17,033 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-25 06:39:17,033 INFO L268 CegarLoopResult]: For program point L64(lines 64 187) no Hoare annotation was computed. [2020-09-25 06:39:17,033 INFO L271 CegarLoopResult]: At program point L213(lines 8 217) the Hoare annotation is: true [2020-09-25 06:39:17,033 INFO L268 CegarLoopResult]: For program point L114(lines 114 118) no Hoare annotation was computed. [2020-09-25 06:39:17,034 INFO L268 CegarLoopResult]: For program point L48(lines 48 195) no Hoare annotation was computed. [2020-09-25 06:39:17,035 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 06:39:17,035 INFO L264 CegarLoopResult]: At program point L65(lines 64 187) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 2)) (and .cse0 (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))))) [2020-09-25 06:39:17,035 INFO L268 CegarLoopResult]: For program point L32(lines 32 203) no Hoare annotation was computed. [2020-09-25 06:39:17,038 INFO L264 CegarLoopResult]: At program point L49(lines 48 195) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 06:39:17,039 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 06:39:17,039 INFO L264 CegarLoopResult]: At program point L33(lines 32 203) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 06:39:17,039 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 06:39:17,039 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-09-25 06:39:17,039 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-25 06:39:17,039 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-25 06:39:17,040 INFO L268 CegarLoopResult]: For program point L134-1(line 134) no Hoare annotation was computed. [2020-09-25 06:39:17,040 INFO L268 CegarLoopResult]: For program point L68(lines 68 185) no Hoare annotation was computed. [2020-09-25 06:39:17,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:39:17 BoogieIcfgContainer [2020-09-25 06:39:17,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:39:17,097 INFO L168 Benchmark]: Toolchain (without parser) took 4159.80 ms. Allocated memory was 140.0 MB in the beginning and 243.8 MB in the end (delta: 103.8 MB). Free memory was 103.0 MB in the beginning and 111.7 MB in the end (delta: -8.7 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:17,103 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:39:17,105 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.94 ms. Allocated memory is still 140.0 MB. Free memory was 102.3 MB in the beginning and 91.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:17,106 INFO L168 Benchmark]: Boogie Preprocessor took 123.78 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 90.9 MB in the beginning and 180.9 MB in the end (delta: -90.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:17,107 INFO L168 Benchmark]: RCFGBuilder took 465.61 ms. Allocated memory is still 203.4 MB. Free memory was 180.9 MB in the beginning and 159.6 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:17,107 INFO L168 Benchmark]: TraceAbstraction took 3199.42 ms. Allocated memory was 203.4 MB in the beginning and 243.8 MB in the end (delta: 40.4 MB). Free memory was 158.9 MB in the beginning and 111.7 MB in the end (delta: 47.2 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:17,123 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 360.94 ms. Allocated memory is still 140.0 MB. Free memory was 102.3 MB in the beginning and 91.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.78 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 90.9 MB in the beginning and 180.9 MB in the end (delta: -90.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 465.61 ms. Allocated memory is still 203.4 MB. Free memory was 180.9 MB in the beginning and 159.6 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3199.42 ms. Allocated memory was 203.4 MB in the beginning and 243.8 MB in the end (delta: 40.4 MB). Free memory was 158.9 MB in the beginning and 111.7 MB in the end (delta: 47.2 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 215]: 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: 32]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (8640 <= s__state && blastFlag <= 2) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (8640 <= s__state && blastFlag <= 2) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((blastFlag <= 3 && 8672 <= s__state) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0))) || blastFlag <= 2 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8672 <= s__state - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: blastFlag <= 2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 6, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 693 SDtfs, 310 SDslu, 522 SDs, 0 SdLazy, 212 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=340occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 21 PreInvPairs, 86 NumberOfFragments, 106 HoareAnnotationTreeSize, 21 FomulaSimplifications, 585 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 395 ConstructedInterpolants, 0 QuantifiedInterpolants, 45737 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 202/202 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...