/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 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 [2020-09-24 17:06:31,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:06:31,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:06:31,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:06:31,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:06:31,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:06:31,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:06:31,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:06:31,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:06:31,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:06:31,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:06:31,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:06:31,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:06:31,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:06:31,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:06:31,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:06:31,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:06:31,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:06:31,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:06:31,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:06:31,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:06:31,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:06:31,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:06:31,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:06:31,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:06:31,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:06:31,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:06:31,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:06:31,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:06:31,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:06:31,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:06:31,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:06:31,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:06:31,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:06:31,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:06:31,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:06:31,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:06:31,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:06:31,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:06:31,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:06:31,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:06:31,429 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 [2020-09-24 17:06:31,460 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:06:31,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:06:31,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:06:31,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:06:31,468 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:06:31,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:06:31,468 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:06:31,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:06:31,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:06:31,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:06:31,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:06:31,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:06:31,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:06:31,470 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:06:31,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:06:31,470 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:06:31,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:06:31,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:06:31,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:06:31,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:06:31,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:06:31,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:06:31,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:06:31,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:06:31,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:06:31,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:06:31,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:06:31,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:06:31,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:06:31,473 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;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;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;log-additional-information=true; [2020-09-24 17:06:31,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:06:31,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:06:31,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:06:31,973 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:06:31,974 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:06:31,976 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2020-09-24 17:06:32,075 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e6d5d867/3255d1759a204a369ab66116b72692ba/FLAGf1a2bd35a [2020-09-24 17:06:32,649 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:06:32,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2020-09-24 17:06:32,662 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e6d5d867/3255d1759a204a369ab66116b72692ba/FLAGf1a2bd35a [2020-09-24 17:06:32,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e6d5d867/3255d1759a204a369ab66116b72692ba [2020-09-24 17:06:32,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:06:32,980 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:06:32,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:06:32,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:06:32,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:06:32,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:06:32" (1/1) ... [2020-09-24 17:06:32,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed07bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:32, skipping insertion in model container [2020-09-24 17:06:32,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:06:32" (1/1) ... [2020-09-24 17:06:33,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:06:33,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:06:33,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:06:33,295 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:06:33,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:06:33,341 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:06:33,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:33 WrapperNode [2020-09-24 17:06:33,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:06:33,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:06:33,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:06:33,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:06:33,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:33" (1/1) ... [2020-09-24 17:06:33,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:33" (1/1) ... [2020-09-24 17:06:33,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:33" (1/1) ... [2020-09-24 17:06:33,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:33" (1/1) ... [2020-09-24 17:06:33,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:33" (1/1) ... [2020-09-24 17:06:33,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:33" (1/1) ... [2020-09-24 17:06:33,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:33" (1/1) ... [2020-09-24 17:06:33,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:06:33,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:06:33,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:06:33,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:06:33,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:33" (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 [2020-09-24 17:06:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:06:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:06:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:06:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:06:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 17:06:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:06:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 17:06:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:06:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:06:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:06:33,935 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:06:33,935 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 17:06:33,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:06:33 BoogieIcfgContainer [2020-09-24 17:06:33,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:06:33,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:06:33,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:06:33,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:06:33,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:06:32" (1/3) ... [2020-09-24 17:06:33,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc1a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:06:33, skipping insertion in model container [2020-09-24 17:06:33,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:33" (2/3) ... [2020-09-24 17:06:33,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc1a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:06:33, skipping insertion in model container [2020-09-24 17:06:33,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:06:33" (3/3) ... [2020-09-24 17:06:33,951 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2020-09-24 17:06:33,964 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:06:33,975 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:06:34,002 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:06:34,034 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:06:34,034 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:06:34,035 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:06:34,035 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:06:34,035 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:06:34,035 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:06:34,035 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:06:34,035 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:06:34,060 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-09-24 17:06:34,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-24 17:06:34,068 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:34,070 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] [2020-09-24 17:06:34,070 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:34,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:34,077 INFO L82 PathProgramCache]: Analyzing trace with hash 766781838, now seen corresponding path program 1 times [2020-09-24 17:06:34,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:34,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336950245] [2020-09-24 17:06:34,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:34,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:34,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:34,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 17:06:34,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:34,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 17:06:34,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 17:06:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:06:34,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:06:34,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:34,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:34,424 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:34,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:34,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:34,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 17:06:34,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:34,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:34,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:34,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:34,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:06:34,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336950245] [2020-09-24 17:06:34,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:34,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:34,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535591530] [2020-09-24 17:06:34,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:34,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:34,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:34,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:34,473 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2020-09-24 17:06:34,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:34,617 INFO L93 Difference]: Finished difference Result 198 states and 286 transitions. [2020-09-24 17:06:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:34,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-09-24 17:06:34,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:34,641 INFO L225 Difference]: With dead ends: 198 [2020-09-24 17:06:34,645 INFO L226 Difference]: Without dead ends: 128 [2020-09-24 17:06:34,653 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 [2020-09-24 17:06:34,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-24 17:06:34,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-09-24 17:06:34,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-24 17:06:34,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 171 transitions. [2020-09-24 17:06:34,766 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 171 transitions. Word has length 26 [2020-09-24 17:06:34,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:34,767 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 171 transitions. [2020-09-24 17:06:34,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:34,767 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 171 transitions. [2020-09-24 17:06:34,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-24 17:06:34,768 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:34,768 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] [2020-09-24 17:06:34,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:06:34,769 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:34,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:34,770 INFO L82 PathProgramCache]: Analyzing trace with hash -184994456, now seen corresponding path program 1 times [2020-09-24 17:06:34,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:34,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247043064] [2020-09-24 17:06:34,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:34,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:34,876 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:34,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 17:06:34,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:34,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 17:06:34,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:34,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:34,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 17:06:34,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:06:34,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:34,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:34,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:34,906 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:34,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:34,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:34,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:06:34,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:34,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:34,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:34,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:34,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:34,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:06:34,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247043064] [2020-09-24 17:06:34,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:34,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:34,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635603370] [2020-09-24 17:06:34,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:34,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:34,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:34,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:34,918 INFO L87 Difference]: Start difference. First operand 128 states and 171 transitions. Second operand 3 states. [2020-09-24 17:06:35,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:35,012 INFO L93 Difference]: Finished difference Result 233 states and 325 transitions. [2020-09-24 17:06:35,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:35,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-09-24 17:06:35,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:35,016 INFO L225 Difference]: With dead ends: 233 [2020-09-24 17:06:35,016 INFO L226 Difference]: Without dead ends: 177 [2020-09-24 17:06:35,018 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 [2020-09-24 17:06:35,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-09-24 17:06:35,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-09-24 17:06:35,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-09-24 17:06:35,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 240 transitions. [2020-09-24 17:06:35,046 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 240 transitions. Word has length 32 [2020-09-24 17:06:35,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:35,047 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 240 transitions. [2020-09-24 17:06:35,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:35,048 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 240 transitions. [2020-09-24 17:06:35,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-24 17:06:35,050 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:35,050 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] [2020-09-24 17:06:35,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:06:35,051 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:35,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:35,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1532764802, now seen corresponding path program 1 times [2020-09-24 17:06:35,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:35,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168004787] [2020-09-24 17:06:35,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:35,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:35,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:35,164 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:35,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 17:06:35,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:06:35,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 17:06:35,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:35,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:35,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-24 17:06:35,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 17:06:35,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:35,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:35,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:35,191 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:35,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:35,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:35,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:06:35,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:35,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:35,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:35,199 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 17:06:35,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168004787] [2020-09-24 17:06:35,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:35,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:35,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589308971] [2020-09-24 17:06:35,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:35,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:35,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:35,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:35,217 INFO L87 Difference]: Start difference. First operand 177 states and 240 transitions. Second operand 3 states. [2020-09-24 17:06:35,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:35,305 INFO L93 Difference]: Finished difference Result 331 states and 463 transitions. [2020-09-24 17:06:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:35,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-09-24 17:06:35,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:35,309 INFO L225 Difference]: With dead ends: 331 [2020-09-24 17:06:35,309 INFO L226 Difference]: Without dead ends: 226 [2020-09-24 17:06:35,310 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 [2020-09-24 17:06:35,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-24 17:06:35,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-24 17:06:35,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-24 17:06:35,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 310 transitions. [2020-09-24 17:06:35,334 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 310 transitions. Word has length 40 [2020-09-24 17:06:35,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:35,335 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 310 transitions. [2020-09-24 17:06:35,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:35,335 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 310 transitions. [2020-09-24 17:06:35,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-24 17:06:35,338 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:35,338 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] [2020-09-24 17:06:35,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:06:35,339 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:35,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:35,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1263446161, now seen corresponding path program 1 times [2020-09-24 17:06:35,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:35,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140659272] [2020-09-24 17:06:35,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:35,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:35,489 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:35,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-24 17:06:35,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:35,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 17:06:35,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:35,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:35,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-24 17:06:35,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:06:35,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:35,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:35,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:35,543 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:35,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:35,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:35,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:06:35,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:35,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:35,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:35,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-24 17:06:35,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140659272] [2020-09-24 17:06:35,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:35,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:35,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874843233] [2020-09-24 17:06:35,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:35,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:35,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:35,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:35,558 INFO L87 Difference]: Start difference. First operand 226 states and 310 transitions. Second operand 3 states. [2020-09-24 17:06:35,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:35,710 INFO L93 Difference]: Finished difference Result 487 states and 699 transitions. [2020-09-24 17:06:35,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:35,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-09-24 17:06:35,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:35,713 INFO L225 Difference]: With dead ends: 487 [2020-09-24 17:06:35,713 INFO L226 Difference]: Without dead ends: 284 [2020-09-24 17:06:35,715 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 [2020-09-24 17:06:35,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-24 17:06:35,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 278. [2020-09-24 17:06:35,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-24 17:06:35,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 362 transitions. [2020-09-24 17:06:35,735 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 362 transitions. Word has length 56 [2020-09-24 17:06:35,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:35,736 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 362 transitions. [2020-09-24 17:06:35,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:35,736 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 362 transitions. [2020-09-24 17:06:35,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-24 17:06:35,740 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:35,740 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] [2020-09-24 17:06:35,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:06:35,741 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:35,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:35,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1348776400, now seen corresponding path program 1 times [2020-09-24 17:06:35,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:35,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658180311] [2020-09-24 17:06:35,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:35,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:35,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:35,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 17:06:35,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:35,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 17:06:35,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:35,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:35,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-24 17:06:35,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:06:35,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:35,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:35,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:35,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:35,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:35,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:35,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:06:35,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:35,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:35,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:35,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:35,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:35,862 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-24 17:06:35,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658180311] [2020-09-24 17:06:35,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:35,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:35,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059378151] [2020-09-24 17:06:35,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:35,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:35,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:35,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:35,865 INFO L87 Difference]: Start difference. First operand 278 states and 362 transitions. Second operand 3 states. [2020-09-24 17:06:35,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:35,941 INFO L93 Difference]: Finished difference Result 535 states and 708 transitions. [2020-09-24 17:06:35,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:35,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-09-24 17:06:35,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:35,945 INFO L225 Difference]: With dead ends: 535 [2020-09-24 17:06:35,946 INFO L226 Difference]: Without dead ends: 342 [2020-09-24 17:06:35,948 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 [2020-09-24 17:06:35,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-24 17:06:35,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 340. [2020-09-24 17:06:35,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-09-24 17:06:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 447 transitions. [2020-09-24 17:06:35,983 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 447 transitions. Word has length 70 [2020-09-24 17:06:35,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:35,987 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 447 transitions. [2020-09-24 17:06:35,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:35,987 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 447 transitions. [2020-09-24 17:06:35,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 17:06:35,997 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:35,998 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] [2020-09-24 17:06:35,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:06:35,998 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:35,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:35,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1264034378, now seen corresponding path program 1 times [2020-09-24 17:06:35,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:35,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313973109] [2020-09-24 17:06:35,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:36,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:36,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 17:06:36,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:36,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 17:06:36,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:36,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:36,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 17:06:36,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:06:36,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:36,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:36,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:36,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:36,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:36,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:06:36,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:36,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:36,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:36,124 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-24 17:06:36,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1313973109] [2020-09-24 17:06:36,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:36,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:36,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032260046] [2020-09-24 17:06:36,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:36,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:36,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:36,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:36,127 INFO L87 Difference]: Start difference. First operand 340 states and 447 transitions. Second operand 3 states. [2020-09-24 17:06:36,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:36,249 INFO L93 Difference]: Finished difference Result 647 states and 876 transitions. [2020-09-24 17:06:36,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:36,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-09-24 17:06:36,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:36,253 INFO L225 Difference]: With dead ends: 647 [2020-09-24 17:06:36,253 INFO L226 Difference]: Without dead ends: 246 [2020-09-24 17:06:36,254 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 [2020-09-24 17:06:36,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-09-24 17:06:36,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 243. [2020-09-24 17:06:36,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-24 17:06:36,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 302 transitions. [2020-09-24 17:06:36,268 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 302 transitions. Word has length 74 [2020-09-24 17:06:36,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:36,268 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 302 transitions. [2020-09-24 17:06:36,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:36,269 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 302 transitions. [2020-09-24 17:06:36,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-24 17:06:36,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:36,271 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] [2020-09-24 17:06:36,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 17:06:36,271 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:36,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:36,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1725408203, now seen corresponding path program 1 times [2020-09-24 17:06:36,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:36,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515493760] [2020-09-24 17:06:36,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:36,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:36,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 17:06:36,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:06:36,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-09-24 17:06:36,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:36,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:36,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-09-24 17:06:36,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 17:06:36,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:36,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:36,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,720 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:36,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:36,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:36,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:06:36,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:36,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:36,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:36,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:36,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-09-24 17:06:36,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515493760] [2020-09-24 17:06:36,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:36,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:36,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64896556] [2020-09-24 17:06:36,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:36,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:36,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:36,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:36,734 INFO L87 Difference]: Start difference. First operand 243 states and 302 transitions. Second operand 3 states. [2020-09-24 17:06:36,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:36,816 INFO L93 Difference]: Finished difference Result 395 states and 472 transitions. [2020-09-24 17:06:36,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:36,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-09-24 17:06:36,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:36,819 INFO L225 Difference]: With dead ends: 395 [2020-09-24 17:06:36,819 INFO L226 Difference]: Without dead ends: 282 [2020-09-24 17:06:36,820 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 [2020-09-24 17:06:36,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-24 17:06:36,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-09-24 17:06:36,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-24 17:06:36,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 341 transitions. [2020-09-24 17:06:36,830 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 341 transitions. Word has length 104 [2020-09-24 17:06:36,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:36,831 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 341 transitions. [2020-09-24 17:06:36,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:36,831 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 341 transitions. [2020-09-24 17:06:36,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-09-24 17:06:36,833 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:36,833 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:06:36,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 17:06:36,833 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:36,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:36,834 INFO L82 PathProgramCache]: Analyzing trace with hash 76930614, now seen corresponding path program 1 times [2020-09-24 17:06:36,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:36,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825320696] [2020-09-24 17:06:36,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:36,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,072 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:37,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-24 17:06:37,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:06:37,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-24 17:06:37,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:37,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:37,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-24 17:06:37,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 17:06:37,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:37,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:37,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,100 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:37,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:37,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:37,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:06:37,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:37,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:37,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:37,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:37,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-09-24 17:06:37,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825320696] [2020-09-24 17:06:37,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:37,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:37,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158426741] [2020-09-24 17:06:37,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:37,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:37,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:37,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:37,128 INFO L87 Difference]: Start difference. First operand 282 states and 341 transitions. Second operand 3 states. [2020-09-24 17:06:37,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:37,148 INFO L93 Difference]: Finished difference Result 435 states and 504 transitions. [2020-09-24 17:06:37,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:37,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-09-24 17:06:37,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:37,149 INFO L225 Difference]: With dead ends: 435 [2020-09-24 17:06:37,149 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:06:37,150 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 [2020-09-24 17:06:37,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:06:37,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:06:37,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:06:37,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:06:37,151 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 119 [2020-09-24 17:06:37,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:37,152 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:06:37,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:37,152 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:06:37,152 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:06:37,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 17:06:37,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:06:37,501 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 17:06:37,501 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:06:37,501 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:06:37,501 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 17:06:37,501 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 17:06:37,501 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 17:06:37,507 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 8 217) no Hoare annotation was computed. [2020-09-24 17:06:37,507 INFO L268 CegarLoopResult]: For program point L151-1(lines 74 183) no Hoare annotation was computed. [2020-09-24 17:06:37,507 INFO L268 CegarLoopResult]: For program point L52(lines 52 193) no Hoare annotation was computed. [2020-09-24 17:06:37,507 INFO L268 CegarLoopResult]: For program point L85-1(lines 74 183) no Hoare annotation was computed. [2020-09-24 17:06:37,508 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 17:06:37,508 INFO L268 CegarLoopResult]: For program point L135(lines 135 139) no Hoare annotation was computed. [2020-09-24 17:06:37,508 INFO L264 CegarLoopResult]: At program point L69(lines 68 185) the Hoare annotation is: (let ((.cse0 (= 8656 main_~s__state~0))) (or (and (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0)) .cse0) (and (<= main_~blastFlag~0 2) .cse0) (and (<= 8640 main_~s__state~0) (<= main_~blastFlag~0 1)))) [2020-09-24 17:06:37,508 INFO L268 CegarLoopResult]: For program point L36(lines 36 201) no Hoare annotation was computed. [2020-09-24 17:06:37,508 INFO L268 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-09-24 17:06:37,509 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-24 17:06:37,509 INFO L264 CegarLoopResult]: At program point L53(lines 52 193) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 17:06:37,509 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 17:06:37,509 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-24 17:06:37,509 INFO L268 CegarLoopResult]: For program point L169-1(lines 74 183) no Hoare annotation was computed. [2020-09-24 17:06:37,509 INFO L264 CegarLoopResult]: At program point L37(lines 36 201) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 17:06:37,510 INFO L264 CegarLoopResult]: At program point L120(lines 113 122) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 17:06:37,510 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 8 217) no Hoare annotation was computed. [2020-09-24 17:06:37,510 INFO L268 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-09-24 17:06:37,510 INFO L268 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-09-24 17:06:37,510 INFO L268 CegarLoopResult]: For program point L105(lines 105 123) no Hoare annotation was computed. [2020-09-24 17:06:37,510 INFO L268 CegarLoopResult]: For program point L72(lines 72 183) no Hoare annotation was computed. [2020-09-24 17:06:37,510 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-09-24 17:06:37,510 INFO L268 CegarLoopResult]: For program point L56(lines 56 191) no Hoare annotation was computed. [2020-09-24 17:06:37,510 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-24 17:06:37,511 INFO L268 CegarLoopResult]: For program point L172(lines 172 174) no Hoare annotation was computed. [2020-09-24 17:06:37,511 INFO L268 CegarLoopResult]: For program point L106(lines 106 110) no Hoare annotation was computed. [2020-09-24 17:06:37,511 INFO L264 CegarLoopResult]: At program point L73(lines 72 183) the Hoare annotation is: (and (<= main_~blastFlag~0 3) (<= 8672 main_~s__state~0)) [2020-09-24 17:06:37,511 INFO L268 CegarLoopResult]: For program point L40(lines 40 199) no Hoare annotation was computed. [2020-09-24 17:06:37,511 INFO L264 CegarLoopResult]: At program point L57(lines 56 191) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 17:06:37,511 INFO L264 CegarLoopResult]: At program point L173(lines 8 217) the Hoare annotation is: false [2020-09-24 17:06:37,511 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-24 17:06:37,511 INFO L264 CegarLoopResult]: At program point L41(lines 40 199) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 17:06:37,512 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-24 17:06:37,512 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-24 17:06:37,512 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-09-24 17:06:37,512 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 17:06:37,512 INFO L268 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-09-24 17:06:37,512 INFO L268 CegarLoopResult]: For program point L10-2(line 10) no Hoare annotation was computed. [2020-09-24 17:06:37,512 INFO L268 CegarLoopResult]: For program point L60(lines 60 189) no Hoare annotation was computed. [2020-09-24 17:06:37,513 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))) [2020-09-24 17:06:37,513 INFO L268 CegarLoopResult]: For program point L44(lines 44 197) no Hoare annotation was computed. [2020-09-24 17:06:37,513 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-24 17:06:37,513 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-24 17:06:37,513 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-24 17:06:37,513 INFO L264 CegarLoopResult]: At program point L61(lines 60 189) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 17:06:37,514 INFO L268 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-09-24 17:06:37,514 INFO L264 CegarLoopResult]: At program point L45(lines 44 197) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 17:06:37,514 INFO L268 CegarLoopResult]: For program point L78-1(lines 78 80) no Hoare annotation was computed. [2020-09-24 17:06:37,514 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-24 17:06:37,514 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-24 17:06:37,514 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-24 17:06:37,514 INFO L268 CegarLoopResult]: For program point L29(lines 29 204) no Hoare annotation was computed. [2020-09-24 17:06:37,514 INFO L264 CegarLoopResult]: At program point L112(lines 105 123) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 17:06:37,514 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-24 17:06:37,514 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 17:06:37,514 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-24 17:06:37,515 INFO L268 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-09-24 17:06:37,515 INFO L268 CegarLoopResult]: For program point L162-1(lines 162 164) no Hoare annotation was computed. [2020-09-24 17:06:37,515 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 215) no Hoare annotation was computed. [2020-09-24 17:06:37,515 INFO L264 CegarLoopResult]: At program point L30(lines 29 204) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 17:06:37,515 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 8 217) the Hoare annotation is: true [2020-09-24 17:06:37,515 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 17:06:37,515 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-24 17:06:37,515 INFO L268 CegarLoopResult]: For program point L64(lines 64 187) no Hoare annotation was computed. [2020-09-24 17:06:37,516 INFO L271 CegarLoopResult]: At program point L213(lines 8 217) the Hoare annotation is: true [2020-09-24 17:06:37,517 INFO L268 CegarLoopResult]: For program point L114(lines 114 118) no Hoare annotation was computed. [2020-09-24 17:06:37,517 INFO L268 CegarLoopResult]: For program point L48(lines 48 195) no Hoare annotation was computed. [2020-09-24 17:06:37,517 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 17:06:37,517 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))))) [2020-09-24 17:06:37,518 INFO L268 CegarLoopResult]: For program point L32(lines 32 203) no Hoare annotation was computed. [2020-09-24 17:06:37,518 INFO L264 CegarLoopResult]: At program point L49(lines 48 195) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 17:06:37,518 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 17:06:37,518 INFO L264 CegarLoopResult]: At program point L33(lines 32 203) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 17:06:37,518 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 17:06:37,518 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-09-24 17:06:37,518 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-24 17:06:37,521 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-24 17:06:37,522 INFO L268 CegarLoopResult]: For program point L134-1(line 134) no Hoare annotation was computed. [2020-09-24 17:06:37,522 INFO L268 CegarLoopResult]: For program point L68(lines 68 185) no Hoare annotation was computed. [2020-09-24 17:06:37,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:06:37 BoogieIcfgContainer [2020-09-24 17:06:37,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:06:37,571 INFO L168 Benchmark]: Toolchain (without parser) took 4587.95 ms. Allocated memory was 138.9 MB in the beginning and 248.0 MB in the end (delta: 109.1 MB). Free memory was 102.4 MB in the beginning and 173.6 MB in the end (delta: -71.2 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:37,572 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-24 17:06:37,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.32 ms. Allocated memory is still 138.9 MB. Free memory was 102.0 MB in the beginning and 90.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:37,575 INFO L168 Benchmark]: Boogie Preprocessor took 123.99 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 90.7 MB in the beginning and 178.8 MB in the end (delta: -88.1 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:37,576 INFO L168 Benchmark]: RCFGBuilder took 474.41 ms. Allocated memory is still 201.3 MB. Free memory was 178.8 MB in the beginning and 156.7 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:37,579 INFO L168 Benchmark]: TraceAbstraction took 3620.37 ms. Allocated memory was 201.3 MB in the beginning and 248.0 MB in the end (delta: 46.7 MB). Free memory was 155.7 MB in the beginning and 173.6 MB in the end (delta: -17.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:37,592 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 360.32 ms. Allocated memory is still 138.9 MB. Free memory was 102.0 MB in the beginning and 90.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.99 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 90.7 MB in the beginning and 178.8 MB in the end (delta: -88.1 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 474.41 ms. Allocated memory is still 201.3 MB. Free memory was 178.8 MB in the beginning and 156.7 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3620.37 ms. Allocated memory was 201.3 MB in the beginning and 248.0 MB in the end (delta: 46.7 MB). Free memory was 155.7 MB in the beginning and 173.6 MB in the end (delta: -17.9 MB). Peak memory consumption was 28.7 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: (((blastFlag <= 3 && !(s__hit == 0)) && 8656 == s__state) || (blastFlag <= 2 && 8656 == s__state)) || (8640 <= s__state && blastFlag <= 1) - 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: 3.1s, OverallIterations: 8, TraceHistogramMax: 7, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 799 SDtfs, 324 SDslu, 578 SDs, 0 SdLazy, 264 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 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, 8 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 21 PreInvPairs, 88 NumberOfFragments, 113 HoareAnnotationTreeSize, 21 FomulaSimplifications, 605 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 21 FomulaSimplificationsInter, 72 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 521 NumberOfCodeBlocks, 521 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 513 ConstructedInterpolants, 0 QuantifiedInterpolants, 52553 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 371/371 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...