/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-1a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 09:36:36,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 09:36:36,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 09:36:36,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 09:36:36,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 09:36:36,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 09:36:36,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 09:36:36,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 09:36:36,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 09:36:36,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 09:36:36,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 09:36:36,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 09:36:36,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 09:36:36,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 09:36:36,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 09:36:36,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 09:36:36,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 09:36:36,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 09:36:36,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 09:36:36,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 09:36:36,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 09:36:36,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 09:36:36,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 09:36:36,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 09:36:36,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 09:36:36,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 09:36:36,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 09:36:36,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 09:36:36,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 09:36:36,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 09:36:36,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 09:36:36,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 09:36:36,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 09:36:36,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 09:36:36,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 09:36:36,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 09:36:36,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 09:36:36,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 09:36:36,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 09:36:36,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 09:36:36,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 09:36:36,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 09:36:36,613 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 09:36:36,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 09:36:36,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 09:36:36,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 09:36:36,616 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 09:36:36,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 09:36:36,616 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 09:36:36,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 09:36:36,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 09:36:36,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 09:36:36,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 09:36:36,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 09:36:36,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 09:36:36,618 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 09:36:36,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 09:36:36,618 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 09:36:36,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 09:36:36,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 09:36:36,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 09:36:36,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 09:36:36,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 09:36:36,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:36:36,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 09:36:36,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 09:36:36,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 09:36:36,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 09:36:36,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 09:36:36,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 09:36:36,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 09:36:36,621 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 09:36:36,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 09:36:37,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 09:36:37,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 09:36:37,042 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 09:36:37,043 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 09:36:37,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-1a.c [2020-10-28 09:36:37,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fe29add8/aff907c6acdb4016b7e3a99b5f5a7911/FLAG369bb05bf [2020-10-28 09:36:37,888 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 09:36:37,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-1a.c [2020-10-28 09:36:37,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fe29add8/aff907c6acdb4016b7e3a99b5f5a7911/FLAG369bb05bf [2020-10-28 09:36:38,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fe29add8/aff907c6acdb4016b7e3a99b5f5a7911 [2020-10-28 09:36:38,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 09:36:38,180 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 09:36:38,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 09:36:38,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 09:36:38,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 09:36:38,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:36:38" (1/1) ... [2020-10-28 09:36:38,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61162730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:38, skipping insertion in model container [2020-10-28 09:36:38,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:36:38" (1/1) ... [2020-10-28 09:36:38,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 09:36:38,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 09:36:38,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:36:38,491 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 09:36:38,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:36:38,591 INFO L208 MainTranslator]: Completed translation [2020-10-28 09:36:38,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:38 WrapperNode [2020-10-28 09:36:38,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 09:36:38,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 09:36:38,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 09:36:38,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 09:36:38,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:38" (1/1) ... [2020-10-28 09:36:38,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:38" (1/1) ... [2020-10-28 09:36:38,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:38" (1/1) ... [2020-10-28 09:36:38,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:38" (1/1) ... [2020-10-28 09:36:38,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:38" (1/1) ... [2020-10-28 09:36:38,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:38" (1/1) ... [2020-10-28 09:36:38,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:38" (1/1) ... [2020-10-28 09:36:38,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 09:36:38,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 09:36:38,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 09:36:38,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 09:36:38,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:36:38,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 09:36:38,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 09:36:38,778 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 09:36:38,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-10-28 09:36:38,779 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 09:36:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 09:36:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 09:36:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 09:36:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 09:36:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 09:36:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 09:36:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-10-28 09:36:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 09:36:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 09:36:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 09:36:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 09:36:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 09:36:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 09:36:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 09:36:39,315 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-28 09:36:39,839 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-10-28 09:36:39,839 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-10-28 09:36:39,853 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 09:36:39,854 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 09:36:39,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:36:39 BoogieIcfgContainer [2020-10-28 09:36:39,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 09:36:39,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 09:36:39,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 09:36:39,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 09:36:39,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:36:38" (1/3) ... [2020-10-28 09:36:39,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33871c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:36:39, skipping insertion in model container [2020-10-28 09:36:39,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:38" (2/3) ... [2020-10-28 09:36:39,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33871c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:36:39, skipping insertion in model container [2020-10-28 09:36:39,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:36:39" (3/3) ... [2020-10-28 09:36:39,865 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2020-10-28 09:36:39,878 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 09:36:39,883 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 09:36:39,897 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 09:36:39,926 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 09:36:39,926 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 09:36:39,926 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 09:36:39,926 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 09:36:39,927 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 09:36:39,927 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 09:36:39,927 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 09:36:39,927 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 09:36:39,949 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2020-10-28 09:36:39,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-28 09:36:39,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:39,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:39,958 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:39,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:39,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1960577222, now seen corresponding path program 1 times [2020-10-28 09:36:39,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:39,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510439600] [2020-10-28 09:36:39,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:40,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:40,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:40,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:40,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:40,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 09:36:40,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 09:36:40,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-10-28 09:36:40,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:40,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:40,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:40,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 09:36:40,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 09:36:40,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 09:36:40,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:40,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:40,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:40,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:40,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:40,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 09:36:40,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:40,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:40,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:40,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:40,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:40,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:36:40,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 09:36:40,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510439600] [2020-10-28 09:36:40,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:40,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:40,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271191052] [2020-10-28 09:36:40,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:40,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:40,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:40,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:40,827 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 4 states. [2020-10-28 09:36:41,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:41,477 INFO L93 Difference]: Finished difference Result 375 states and 634 transitions. [2020-10-28 09:36:41,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:41,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-10-28 09:36:41,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:41,492 INFO L225 Difference]: With dead ends: 375 [2020-10-28 09:36:41,493 INFO L226 Difference]: Without dead ends: 217 [2020-10-28 09:36:41,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:41,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-28 09:36:41,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-28 09:36:41,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-28 09:36:41,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 324 transitions. [2020-10-28 09:36:41,569 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 324 transitions. Word has length 32 [2020-10-28 09:36:41,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:41,570 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 324 transitions. [2020-10-28 09:36:41,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:41,570 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 324 transitions. [2020-10-28 09:36:41,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-28 09:36:41,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:41,574 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 09:36:41,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 09:36:41,574 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:41,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:41,575 INFO L82 PathProgramCache]: Analyzing trace with hash -888120259, now seen corresponding path program 1 times [2020-10-28 09:36:41,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:41,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280332694] [2020-10-28 09:36:41,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:41,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:41,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:41,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:41,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:42,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:42,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:42,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-28 09:36:42,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 09:36:42,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 678 [2020-10-28 09:36:42,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:42,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-28 09:36:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 09:36:42,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 09:36:42,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:42,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:42,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:42,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:42,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:42,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 09:36:42,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:42,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:42,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:42,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:42,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:42,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:42,384 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 09:36:42,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280332694] [2020-10-28 09:36:42,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:42,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:42,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292514189] [2020-10-28 09:36:42,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:42,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:42,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:42,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:42,389 INFO L87 Difference]: Start difference. First operand 217 states and 324 transitions. Second operand 4 states. [2020-10-28 09:36:42,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:42,833 INFO L93 Difference]: Finished difference Result 420 states and 634 transitions. [2020-10-28 09:36:42,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:42,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-10-28 09:36:42,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:42,837 INFO L225 Difference]: With dead ends: 420 [2020-10-28 09:36:42,837 INFO L226 Difference]: Without dead ends: 317 [2020-10-28 09:36:42,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:42,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-10-28 09:36:42,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-10-28 09:36:42,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-10-28 09:36:42,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 474 transitions. [2020-10-28 09:36:42,869 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 474 transitions. Word has length 46 [2020-10-28 09:36:42,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:42,869 INFO L481 AbstractCegarLoop]: Abstraction has 317 states and 474 transitions. [2020-10-28 09:36:42,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:42,870 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 474 transitions. [2020-10-28 09:36:42,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-28 09:36:42,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:42,874 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 09:36:42,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 09:36:42,874 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:42,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:42,875 INFO L82 PathProgramCache]: Analyzing trace with hash 563769203, now seen corresponding path program 1 times [2020-10-28 09:36:42,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:42,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117138315] [2020-10-28 09:36:42,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:42,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:42,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:43,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:43,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:43,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 09:36:43,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 09:36:43,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-28 09:36:43,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:43,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:43,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:43,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-28 09:36:43,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 09:36:43,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:43,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:43,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:43,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:43,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:43,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:43,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 09:36:43,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:43,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:43,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:43,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:43,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:43,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:43,246 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 09:36:43,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117138315] [2020-10-28 09:36:43,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:43,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:43,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979706895] [2020-10-28 09:36:43,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:43,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:43,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:43,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:43,249 INFO L87 Difference]: Start difference. First operand 317 states and 474 transitions. Second operand 4 states. [2020-10-28 09:36:43,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:43,672 INFO L93 Difference]: Finished difference Result 620 states and 934 transitions. [2020-10-28 09:36:43,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:43,672 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-10-28 09:36:43,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:43,676 INFO L225 Difference]: With dead ends: 620 [2020-10-28 09:36:43,676 INFO L226 Difference]: Without dead ends: 417 [2020-10-28 09:36:43,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:43,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-10-28 09:36:43,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2020-10-28 09:36:43,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-10-28 09:36:43,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 625 transitions. [2020-10-28 09:36:43,709 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 625 transitions. Word has length 63 [2020-10-28 09:36:43,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:43,710 INFO L481 AbstractCegarLoop]: Abstraction has 417 states and 625 transitions. [2020-10-28 09:36:43,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:43,710 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 625 transitions. [2020-10-28 09:36:43,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-28 09:36:43,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:43,714 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:43,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 09:36:43,715 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:43,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:43,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1857015923, now seen corresponding path program 1 times [2020-10-28 09:36:43,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:43,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79309725] [2020-10-28 09:36:43,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:43,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:43,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:43,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:43,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:43,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:44,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:44,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 09:36:44,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 09:36:44,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 473 [2020-10-28 09:36:44,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:44,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:44,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:44,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-28 09:36:44,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 09:36:44,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:36:44,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:44,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:44,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:44,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:44,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:44,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 09:36:44,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:44,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:44,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:36:44,338 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-28 09:36:44,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79309725] [2020-10-28 09:36:44,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:44,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:44,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162427016] [2020-10-28 09:36:44,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:44,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:44,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:44,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:44,341 INFO L87 Difference]: Start difference. First operand 417 states and 625 transitions. Second operand 4 states. [2020-10-28 09:36:44,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:44,812 INFO L93 Difference]: Finished difference Result 820 states and 1236 transitions. [2020-10-28 09:36:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:44,813 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 81 [2020-10-28 09:36:44,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:44,819 INFO L225 Difference]: With dead ends: 820 [2020-10-28 09:36:44,819 INFO L226 Difference]: Without dead ends: 517 [2020-10-28 09:36:44,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:44,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2020-10-28 09:36:44,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2020-10-28 09:36:44,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2020-10-28 09:36:44,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 777 transitions. [2020-10-28 09:36:44,867 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 777 transitions. Word has length 81 [2020-10-28 09:36:44,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:44,870 INFO L481 AbstractCegarLoop]: Abstraction has 517 states and 777 transitions. [2020-10-28 09:36:44,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:44,870 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 777 transitions. [2020-10-28 09:36:44,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-28 09:36:44,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:44,875 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:44,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 09:36:44,875 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:44,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:44,876 INFO L82 PathProgramCache]: Analyzing trace with hash -130032197, now seen corresponding path program 1 times [2020-10-28 09:36:44,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:44,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036282604] [2020-10-28 09:36:44,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:44,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:44,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:45,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:45,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:45,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 09:36:45,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 09:36:45,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-28 09:36:45,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:45,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:45,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:45,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 09:36:45,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 09:36:45,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:45,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:45,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:45,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:45,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:45,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:45,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 09:36:45,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:45,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:45,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:45,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:45,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:45,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:45,312 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-28 09:36:45,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036282604] [2020-10-28 09:36:45,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:45,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:45,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773158728] [2020-10-28 09:36:45,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:45,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:45,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:45,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:45,317 INFO L87 Difference]: Start difference. First operand 517 states and 777 transitions. Second operand 4 states. [2020-10-28 09:36:45,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:45,785 INFO L93 Difference]: Finished difference Result 620 states and 933 transitions. [2020-10-28 09:36:45,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:45,785 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 101 [2020-10-28 09:36:45,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:45,790 INFO L225 Difference]: With dead ends: 620 [2020-10-28 09:36:45,791 INFO L226 Difference]: Without dead ends: 617 [2020-10-28 09:36:45,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:45,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2020-10-28 09:36:45,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 617. [2020-10-28 09:36:45,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2020-10-28 09:36:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 930 transitions. [2020-10-28 09:36:45,853 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 930 transitions. Word has length 101 [2020-10-28 09:36:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:45,853 INFO L481 AbstractCegarLoop]: Abstraction has 617 states and 930 transitions. [2020-10-28 09:36:45,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:45,854 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 930 transitions. [2020-10-28 09:36:45,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-28 09:36:45,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:45,856 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 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] [2020-10-28 09:36:45,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 09:36:45,857 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:45,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:45,857 INFO L82 PathProgramCache]: Analyzing trace with hash 2059082338, now seen corresponding path program 1 times [2020-10-28 09:36:45,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:45,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497090314] [2020-10-28 09:36:45,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:45,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:45,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:45,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:46,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:46,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 09:36:46,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 09:36:46,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-28 09:36:46,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:46,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:46,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:46,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-28 09:36:46,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 09:36:46,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:46,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:46,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:46,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:46,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:46,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:46,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:36:46,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:46,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:46,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:46,210 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-28 09:36:46,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497090314] [2020-10-28 09:36:46,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:46,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:46,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048392019] [2020-10-28 09:36:46,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:46,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:46,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:46,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:46,213 INFO L87 Difference]: Start difference. First operand 617 states and 930 transitions. Second operand 4 states. [2020-10-28 09:36:46,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:46,737 INFO L93 Difference]: Finished difference Result 1520 states and 2369 transitions. [2020-10-28 09:36:46,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:46,738 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2020-10-28 09:36:46,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:46,745 INFO L225 Difference]: With dead ends: 1520 [2020-10-28 09:36:46,745 INFO L226 Difference]: Without dead ends: 911 [2020-10-28 09:36:46,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:46,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-10-28 09:36:46,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 863. [2020-10-28 09:36:46,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2020-10-28 09:36:46,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1326 transitions. [2020-10-28 09:36:46,787 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1326 transitions. Word has length 119 [2020-10-28 09:36:46,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:46,787 INFO L481 AbstractCegarLoop]: Abstraction has 863 states and 1326 transitions. [2020-10-28 09:36:46,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:46,787 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1326 transitions. [2020-10-28 09:36:46,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-28 09:36:46,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:46,790 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:46,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 09:36:46,791 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:46,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:46,791 INFO L82 PathProgramCache]: Analyzing trace with hash 8759074, now seen corresponding path program 1 times [2020-10-28 09:36:46,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:46,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855992889] [2020-10-28 09:36:46,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:46,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:46,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:46,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:46,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:47,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:47,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:47,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 09:36:47,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 09:36:47,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-10-28 09:36:47,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:47,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 09:36:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 09:36:47,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:47,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:47,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:47,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:47,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:47,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:47,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:36:47,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:47,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:47,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:47,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:47,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:47,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:48,004 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-10-28 09:36:48,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855992889] [2020-10-28 09:36:48,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:48,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:48,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063729211] [2020-10-28 09:36:48,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:48,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:48,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:48,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:48,007 INFO L87 Difference]: Start difference. First operand 863 states and 1326 transitions. Second operand 4 states. [2020-10-28 09:36:48,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:48,555 INFO L93 Difference]: Finished difference Result 2551 states and 3922 transitions. [2020-10-28 09:36:48,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:48,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-10-28 09:36:48,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:48,566 INFO L225 Difference]: With dead ends: 2551 [2020-10-28 09:36:48,566 INFO L226 Difference]: Without dead ends: 1702 [2020-10-28 09:36:48,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:48,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2020-10-28 09:36:48,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1701. [2020-10-28 09:36:48,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1701 states. [2020-10-28 09:36:48,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2596 transitions. [2020-10-28 09:36:48,657 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2596 transitions. Word has length 143 [2020-10-28 09:36:48,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:48,657 INFO L481 AbstractCegarLoop]: Abstraction has 1701 states and 2596 transitions. [2020-10-28 09:36:48,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:48,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2596 transitions. [2020-10-28 09:36:48,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-28 09:36:48,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:48,662 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:48,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 09:36:48,663 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:48,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:48,663 INFO L82 PathProgramCache]: Analyzing trace with hash -455068958, now seen corresponding path program 1 times [2020-10-28 09:36:48,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:48,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92778299] [2020-10-28 09:36:48,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:48,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:48,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:48,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:49,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:49,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 09:36:49,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 09:36:49,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-10-28 09:36:49,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:49,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-28 09:36:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 09:36:49,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:49,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:49,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:49,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:49,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:49,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:49,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:36:49,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:49,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:49,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:49,253 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-28 09:36:49,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92778299] [2020-10-28 09:36:49,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:49,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:49,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809339642] [2020-10-28 09:36:49,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:49,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:49,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:49,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:49,256 INFO L87 Difference]: Start difference. First operand 1701 states and 2596 transitions. Second operand 4 states. [2020-10-28 09:36:49,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:49,826 INFO L93 Difference]: Finished difference Result 4002 states and 6234 transitions. [2020-10-28 09:36:49,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:49,826 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-10-28 09:36:49,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:49,839 INFO L225 Difference]: With dead ends: 4002 [2020-10-28 09:36:49,840 INFO L226 Difference]: Without dead ends: 2319 [2020-10-28 09:36:49,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:49,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2020-10-28 09:36:49,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2175. [2020-10-28 09:36:49,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2175 states. [2020-10-28 09:36:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 3154 transitions. [2020-10-28 09:36:49,934 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 3154 transitions. Word has length 143 [2020-10-28 09:36:49,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:49,935 INFO L481 AbstractCegarLoop]: Abstraction has 2175 states and 3154 transitions. [2020-10-28 09:36:49,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:49,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 3154 transitions. [2020-10-28 09:36:49,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-28 09:36:49,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:49,941 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:49,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 09:36:49,942 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:49,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:49,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1682674523, now seen corresponding path program 1 times [2020-10-28 09:36:49,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:49,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853905935] [2020-10-28 09:36:49,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:49,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:50,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:50,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-28 09:36:50,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:50,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-28 09:36:50,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:50,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:50,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:50,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-28 09:36:50,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 09:36:50,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:50,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:50,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:50,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:50,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:50,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:50,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:36:50,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:50,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:50,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:50,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:50,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:50,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:50,219 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-28 09:36:50,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853905935] [2020-10-28 09:36:50,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:50,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:50,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394280472] [2020-10-28 09:36:50,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:50,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:50,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:50,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:50,222 INFO L87 Difference]: Start difference. First operand 2175 states and 3154 transitions. Second operand 4 states. [2020-10-28 09:36:50,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:50,843 INFO L93 Difference]: Finished difference Result 5425 states and 8103 transitions. [2020-10-28 09:36:50,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:50,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-10-28 09:36:50,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:50,863 INFO L225 Difference]: With dead ends: 5425 [2020-10-28 09:36:50,863 INFO L226 Difference]: Without dead ends: 3064 [2020-10-28 09:36:50,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:50,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2020-10-28 09:36:50,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 2715. [2020-10-28 09:36:50,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2715 states. [2020-10-28 09:36:51,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 3922 transitions. [2020-10-28 09:36:51,009 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 3922 transitions. Word has length 157 [2020-10-28 09:36:51,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:51,009 INFO L481 AbstractCegarLoop]: Abstraction has 2715 states and 3922 transitions. [2020-10-28 09:36:51,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:51,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 3922 transitions. [2020-10-28 09:36:51,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-28 09:36:51,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:51,017 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:51,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 09:36:51,017 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:51,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:51,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1197890536, now seen corresponding path program 1 times [2020-10-28 09:36:51,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:51,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248892561] [2020-10-28 09:36:51,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:51,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:51,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:51,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-28 09:36:51,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:51,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-28 09:36:51,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:51,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:51,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:51,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-28 09:36:51,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 09:36:51,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:51,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:51,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:51,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:51,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:51,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:51,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:36:51,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:51,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:51,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-10-28 09:36:51,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248892561] [2020-10-28 09:36:51,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:51,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:51,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185342874] [2020-10-28 09:36:51,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:51,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:51,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:51,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:51,322 INFO L87 Difference]: Start difference. First operand 2715 states and 3922 transitions. Second operand 4 states. [2020-10-28 09:36:51,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:51,882 INFO L93 Difference]: Finished difference Result 6030 states and 8754 transitions. [2020-10-28 09:36:51,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:51,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 178 [2020-10-28 09:36:51,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:51,899 INFO L225 Difference]: With dead ends: 6030 [2020-10-28 09:36:51,900 INFO L226 Difference]: Without dead ends: 3153 [2020-10-28 09:36:51,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:51,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3153 states. [2020-10-28 09:36:52,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3153 to 3009. [2020-10-28 09:36:52,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3009 states. [2020-10-28 09:36:52,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3009 states to 3009 states and 4288 transitions. [2020-10-28 09:36:52,043 INFO L78 Accepts]: Start accepts. Automaton has 3009 states and 4288 transitions. Word has length 178 [2020-10-28 09:36:52,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:52,044 INFO L481 AbstractCegarLoop]: Abstraction has 3009 states and 4288 transitions. [2020-10-28 09:36:52,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:52,044 INFO L276 IsEmpty]: Start isEmpty. Operand 3009 states and 4288 transitions. [2020-10-28 09:36:52,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-28 09:36:52,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:52,055 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:52,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 09:36:52,055 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:52,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:52,056 INFO L82 PathProgramCache]: Analyzing trace with hash 14120779, now seen corresponding path program 1 times [2020-10-28 09:36:52,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:52,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50762297] [2020-10-28 09:36:52,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:52,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:52,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:52,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-28 09:36:52,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:52,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-28 09:36:52,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:52,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-28 09:36:52,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 09:36:52,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:36:52,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:52,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:52,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:52,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:52,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:52,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:36:52,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:52,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:52,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:52,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:36:52,453 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2020-10-28 09:36:52,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50762297] [2020-10-28 09:36:52,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:52,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:52,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259497560] [2020-10-28 09:36:52,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:52,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:52,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:52,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:52,456 INFO L87 Difference]: Start difference. First operand 3009 states and 4288 transitions. Second operand 4 states. [2020-10-28 09:36:53,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:53,057 INFO L93 Difference]: Finished difference Result 6618 states and 9474 transitions. [2020-10-28 09:36:53,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:53,058 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 202 [2020-10-28 09:36:53,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:53,083 INFO L225 Difference]: With dead ends: 6618 [2020-10-28 09:36:53,083 INFO L226 Difference]: Without dead ends: 3471 [2020-10-28 09:36:53,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:53,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3471 states. [2020-10-28 09:36:53,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3471 to 3339. [2020-10-28 09:36:53,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3339 states. [2020-10-28 09:36:53,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3339 states to 3339 states and 4714 transitions. [2020-10-28 09:36:53,317 INFO L78 Accepts]: Start accepts. Automaton has 3339 states and 4714 transitions. Word has length 202 [2020-10-28 09:36:53,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:53,317 INFO L481 AbstractCegarLoop]: Abstraction has 3339 states and 4714 transitions. [2020-10-28 09:36:53,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:53,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3339 states and 4714 transitions. [2020-10-28 09:36:53,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-28 09:36:53,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:53,328 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:53,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 09:36:53,329 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:53,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:53,330 INFO L82 PathProgramCache]: Analyzing trace with hash 968060937, now seen corresponding path program 1 times [2020-10-28 09:36:53,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:53,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471039016] [2020-10-28 09:36:53,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:53,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:53,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:53,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-28 09:36:53,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:53,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-28 09:36:53,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:53,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:53,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:53,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-28 09:36:53,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 09:36:53,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:53,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:53,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:53,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:53,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:53,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:53,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:36:53,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:53,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:53,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:53,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:53,660 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2020-10-28 09:36:53,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471039016] [2020-10-28 09:36:53,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:53,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:53,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597004226] [2020-10-28 09:36:53,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:53,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:53,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:53,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:53,663 INFO L87 Difference]: Start difference. First operand 3339 states and 4714 transitions. Second operand 4 states. [2020-10-28 09:36:54,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:54,233 INFO L93 Difference]: Finished difference Result 7278 states and 10338 transitions. [2020-10-28 09:36:54,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:54,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 202 [2020-10-28 09:36:54,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:54,255 INFO L225 Difference]: With dead ends: 7278 [2020-10-28 09:36:54,255 INFO L226 Difference]: Without dead ends: 3849 [2020-10-28 09:36:54,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:54,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3849 states. [2020-10-28 09:36:54,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3849 to 3705. [2020-10-28 09:36:54,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3705 states. [2020-10-28 09:36:54,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3705 states to 3705 states and 5224 transitions. [2020-10-28 09:36:54,433 INFO L78 Accepts]: Start accepts. Automaton has 3705 states and 5224 transitions. Word has length 202 [2020-10-28 09:36:54,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:54,434 INFO L481 AbstractCegarLoop]: Abstraction has 3705 states and 5224 transitions. [2020-10-28 09:36:54,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:54,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3705 states and 5224 transitions. [2020-10-28 09:36:54,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-28 09:36:54,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:54,445 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:54,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 09:36:54,446 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:54,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:54,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1471422667, now seen corresponding path program 1 times [2020-10-28 09:36:54,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:54,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856149897] [2020-10-28 09:36:54,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:54,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:54,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:54,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:54,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-28 09:36:54,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:36:54,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-28 09:36:54,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:54,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:54,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:54,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-28 09:36:54,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 09:36:54,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:54,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:54,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:54,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:54,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:54,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:54,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:36:54,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:54,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:54,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:54,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:54,926 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-10-28 09:36:54,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856149897] [2020-10-28 09:36:54,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:54,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:54,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172678804] [2020-10-28 09:36:54,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:54,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:54,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:54,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:54,929 INFO L87 Difference]: Start difference. First operand 3705 states and 5224 transitions. Second operand 4 states. [2020-10-28 09:36:55,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:55,563 INFO L93 Difference]: Finished difference Result 11065 states and 15607 transitions. [2020-10-28 09:36:55,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:55,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 232 [2020-10-28 09:36:55,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:55,626 INFO L225 Difference]: With dead ends: 11065 [2020-10-28 09:36:55,626 INFO L226 Difference]: Without dead ends: 7378 [2020-10-28 09:36:55,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:55,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7378 states. [2020-10-28 09:36:55,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7378 to 7377. [2020-10-28 09:36:55,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7377 states. [2020-10-28 09:36:55,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7377 states to 7377 states and 10396 transitions. [2020-10-28 09:36:55,961 INFO L78 Accepts]: Start accepts. Automaton has 7377 states and 10396 transitions. Word has length 232 [2020-10-28 09:36:55,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:55,961 INFO L481 AbstractCegarLoop]: Abstraction has 7377 states and 10396 transitions. [2020-10-28 09:36:55,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:55,962 INFO L276 IsEmpty]: Start isEmpty. Operand 7377 states and 10396 transitions. [2020-10-28 09:36:55,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-28 09:36:55,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:55,983 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:55,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 09:36:55,983 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:55,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:55,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1869604471, now seen corresponding path program 1 times [2020-10-28 09:36:55,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:55,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264287307] [2020-10-28 09:36:55,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:56,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:56,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:56,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-28 09:36:56,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:56,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-28 09:36:56,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:56,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-10-28 09:36:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 09:36:56,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:56,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:56,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:56,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:56,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:56,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:56,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 09:36:56,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:56,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:56,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:56,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:56,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:36:56,412 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2020-10-28 09:36:56,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264287307] [2020-10-28 09:36:56,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:56,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:56,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784208678] [2020-10-28 09:36:56,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:56,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:56,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:56,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:56,415 INFO L87 Difference]: Start difference. First operand 7377 states and 10396 transitions. Second operand 4 states. [2020-10-28 09:36:57,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:57,133 INFO L93 Difference]: Finished difference Result 15948 states and 22590 transitions. [2020-10-28 09:36:57,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:57,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 232 [2020-10-28 09:36:57,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:57,159 INFO L225 Difference]: With dead ends: 15948 [2020-10-28 09:36:57,159 INFO L226 Difference]: Without dead ends: 8469 [2020-10-28 09:36:57,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:57,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8469 states. [2020-10-28 09:36:57,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8469 to 8205. [2020-10-28 09:36:57,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8205 states. [2020-10-28 09:36:57,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8205 states to 8205 states and 11608 transitions. [2020-10-28 09:36:57,528 INFO L78 Accepts]: Start accepts. Automaton has 8205 states and 11608 transitions. Word has length 232 [2020-10-28 09:36:57,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:57,528 INFO L481 AbstractCegarLoop]: Abstraction has 8205 states and 11608 transitions. [2020-10-28 09:36:57,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:57,528 INFO L276 IsEmpty]: Start isEmpty. Operand 8205 states and 11608 transitions. [2020-10-28 09:36:57,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-28 09:36:57,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:57,550 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:57,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 09:36:57,550 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:57,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:57,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1520915109, now seen corresponding path program 1 times [2020-10-28 09:36:57,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:57,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674013111] [2020-10-28 09:36:57,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:57,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:57,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:57,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-28 09:36:57,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:57,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-28 09:36:57,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:57,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:57,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:57,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-10-28 09:36:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 09:36:57,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:57,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:57,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:57,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:57,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:57,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:57,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:36:57,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:57,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:57,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:57,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:57,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:57,902 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2020-10-28 09:36:57,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674013111] [2020-10-28 09:36:57,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:57,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:57,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078912399] [2020-10-28 09:36:57,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:57,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:57,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:57,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:57,907 INFO L87 Difference]: Start difference. First operand 8205 states and 11608 transitions. Second operand 4 states. [2020-10-28 09:36:58,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:58,612 INFO L93 Difference]: Finished difference Result 16722 states and 23596 transitions. [2020-10-28 09:36:58,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:58,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 267 [2020-10-28 09:36:58,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:58,634 INFO L225 Difference]: With dead ends: 16722 [2020-10-28 09:36:58,635 INFO L226 Difference]: Without dead ends: 8463 [2020-10-28 09:36:58,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:36:58,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8463 states. [2020-10-28 09:36:58,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8463 to 8199. [2020-10-28 09:36:58,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8199 states. [2020-10-28 09:36:58,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8199 states to 8199 states and 11498 transitions. [2020-10-28 09:36:58,941 INFO L78 Accepts]: Start accepts. Automaton has 8199 states and 11498 transitions. Word has length 267 [2020-10-28 09:36:58,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:58,942 INFO L481 AbstractCegarLoop]: Abstraction has 8199 states and 11498 transitions. [2020-10-28 09:36:58,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:58,942 INFO L276 IsEmpty]: Start isEmpty. Operand 8199 states and 11498 transitions. [2020-10-28 09:36:58,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-10-28 09:36:58,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:58,964 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:58,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 09:36:58,964 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:58,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:58,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1554223564, now seen corresponding path program 1 times [2020-10-28 09:36:58,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:58,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641917727] [2020-10-28 09:36:58,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:59,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:59,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:59,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:59,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:59,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:59,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 301 [2020-10-28 09:36:59,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:36:59,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 747 [2020-10-28 09:36:59,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:59,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:59,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:59,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 09:36:59,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 225 [2020-10-28 09:36:59,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:59,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:59,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:59,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:59,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:59,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:59,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:36:59,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:59,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:59,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:59,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:59,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:59,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:00,012 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-10-28 09:37:00,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641917727] [2020-10-28 09:37:00,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:00,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:00,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165506813] [2020-10-28 09:37:00,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:00,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:00,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:00,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:00,018 INFO L87 Difference]: Start difference. First operand 8199 states and 11498 transitions. Second operand 4 states. [2020-10-28 09:37:00,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:00,912 INFO L93 Difference]: Finished difference Result 24421 states and 34239 transitions. [2020-10-28 09:37:00,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:00,913 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 291 [2020-10-28 09:37:00,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:00,959 INFO L225 Difference]: With dead ends: 24421 [2020-10-28 09:37:00,959 INFO L226 Difference]: Without dead ends: 16306 [2020-10-28 09:37:00,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:37:01,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16306 states. [2020-10-28 09:37:01,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16306 to 16305. [2020-10-28 09:37:01,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16305 states. [2020-10-28 09:37:01,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16305 states to 16305 states and 22800 transitions. [2020-10-28 09:37:01,684 INFO L78 Accepts]: Start accepts. Automaton has 16305 states and 22800 transitions. Word has length 291 [2020-10-28 09:37:01,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:01,684 INFO L481 AbstractCegarLoop]: Abstraction has 16305 states and 22800 transitions. [2020-10-28 09:37:01,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:01,685 INFO L276 IsEmpty]: Start isEmpty. Operand 16305 states and 22800 transitions. [2020-10-28 09:37:01,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-10-28 09:37:01,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:01,726 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:01,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 09:37:01,727 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:01,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:01,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1765130320, now seen corresponding path program 1 times [2020-10-28 09:37:01,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:01,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516055818] [2020-10-28 09:37:01,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:01,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:01,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:02,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:02,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:02,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:02,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 301 [2020-10-28 09:37:02,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:37:02,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 581 [2020-10-28 09:37:02,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:02,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 09:37:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-28 09:37:02,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:02,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:02,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:02,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:02,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:02,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:02,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:37:02,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:02,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:02,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:02,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:02,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:02,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:02,588 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2020-10-28 09:37:02,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516055818] [2020-10-28 09:37:02,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:02,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:02,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305738125] [2020-10-28 09:37:02,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:02,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:02,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:02,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:02,590 INFO L87 Difference]: Start difference. First operand 16305 states and 22800 transitions. Second operand 4 states. [2020-10-28 09:37:03,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:03,403 INFO L93 Difference]: Finished difference Result 24397 states and 34071 transitions. [2020-10-28 09:37:03,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:03,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 291 [2020-10-28 09:37:03,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:03,450 INFO L225 Difference]: With dead ends: 24397 [2020-10-28 09:37:03,450 INFO L226 Difference]: Without dead ends: 16306 [2020-10-28 09:37:03,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:37:03,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16306 states. [2020-10-28 09:37:04,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16306 to 16305. [2020-10-28 09:37:04,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16305 states. [2020-10-28 09:37:04,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16305 states to 16305 states and 22728 transitions. [2020-10-28 09:37:04,149 INFO L78 Accepts]: Start accepts. Automaton has 16305 states and 22728 transitions. Word has length 291 [2020-10-28 09:37:04,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:04,150 INFO L481 AbstractCegarLoop]: Abstraction has 16305 states and 22728 transitions. [2020-10-28 09:37:04,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:04,150 INFO L276 IsEmpty]: Start isEmpty. Operand 16305 states and 22728 transitions. [2020-10-28 09:37:04,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-10-28 09:37:04,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:04,191 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:04,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 09:37:04,192 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:04,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:04,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1899143826, now seen corresponding path program 1 times [2020-10-28 09:37:04,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:04,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689757518] [2020-10-28 09:37:04,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:04,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:04,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:04,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 301 [2020-10-28 09:37:04,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:04,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-28 09:37:04,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:04,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:04,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:04,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 242 [2020-10-28 09:37:04,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 09:37:04,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:04,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:04,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:04,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:04,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:04,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:04,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:37:04,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:04,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:04,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:04,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:04,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:04,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:04,581 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2020-10-28 09:37:04,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689757518] [2020-10-28 09:37:04,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:04,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:04,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460420829] [2020-10-28 09:37:04,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:04,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:04,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:04,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:04,592 INFO L87 Difference]: Start difference. First operand 16305 states and 22728 transitions. Second operand 4 states. [2020-10-28 09:37:05,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:05,572 INFO L93 Difference]: Finished difference Result 34788 states and 47954 transitions. [2020-10-28 09:37:05,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:05,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 291 [2020-10-28 09:37:05,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:05,620 INFO L225 Difference]: With dead ends: 34788 [2020-10-28 09:37:05,621 INFO L226 Difference]: Without dead ends: 18633 [2020-10-28 09:37:05,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:37:05,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18633 states. [2020-10-28 09:37:06,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18633 to 17001. [2020-10-28 09:37:06,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17001 states. [2020-10-28 09:37:06,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17001 states to 17001 states and 23712 transitions. [2020-10-28 09:37:06,182 INFO L78 Accepts]: Start accepts. Automaton has 17001 states and 23712 transitions. Word has length 291 [2020-10-28 09:37:06,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:06,183 INFO L481 AbstractCegarLoop]: Abstraction has 17001 states and 23712 transitions. [2020-10-28 09:37:06,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:06,183 INFO L276 IsEmpty]: Start isEmpty. Operand 17001 states and 23712 transitions. [2020-10-28 09:37:06,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-28 09:37:06,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:06,217 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:06,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 09:37:06,218 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:06,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:06,218 INFO L82 PathProgramCache]: Analyzing trace with hash -528095366, now seen corresponding path program 1 times [2020-10-28 09:37:06,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:06,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741359325] [2020-10-28 09:37:06,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:06,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:06,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:06,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-28 09:37:06,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:06,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-28 09:37:06,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:06,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 242 [2020-10-28 09:37:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 09:37:06,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:37:06,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:06,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:06,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:06,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:06,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:06,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:37:06,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:06,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:06,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:06,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:06,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:06,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:06,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-10-28 09:37:06,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [741359325] [2020-10-28 09:37:06,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:06,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:06,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701005868] [2020-10-28 09:37:06,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:06,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:06,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:06,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:06,747 INFO L87 Difference]: Start difference. First operand 17001 states and 23712 transitions. Second operand 4 states. [2020-10-28 09:37:07,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:07,782 INFO L93 Difference]: Finished difference Result 36204 states and 49898 transitions. [2020-10-28 09:37:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:07,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 304 [2020-10-28 09:37:07,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:07,841 INFO L225 Difference]: With dead ends: 36204 [2020-10-28 09:37:07,842 INFO L226 Difference]: Without dead ends: 19353 [2020-10-28 09:37:07,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:37:07,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19353 states. [2020-10-28 09:37:08,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19353 to 17673. [2020-10-28 09:37:08,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17673 states. [2020-10-28 09:37:08,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17673 states to 17673 states and 24384 transitions. [2020-10-28 09:37:08,607 INFO L78 Accepts]: Start accepts. Automaton has 17673 states and 24384 transitions. Word has length 304 [2020-10-28 09:37:08,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:08,608 INFO L481 AbstractCegarLoop]: Abstraction has 17673 states and 24384 transitions. [2020-10-28 09:37:08,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:08,609 INFO L276 IsEmpty]: Start isEmpty. Operand 17673 states and 24384 transitions. [2020-10-28 09:37:08,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-10-28 09:37:08,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:08,648 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:08,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 09:37:08,648 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:08,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:08,649 INFO L82 PathProgramCache]: Analyzing trace with hash -949684049, now seen corresponding path program 1 times [2020-10-28 09:37:08,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:08,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781571153] [2020-10-28 09:37:08,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:08,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:08,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:08,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-10-28 09:37:08,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:08,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-28 09:37:08,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:08,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:08,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:08,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 244 [2020-10-28 09:37:08,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 09:37:08,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:08,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:08,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:09,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:09,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:09,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:09,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:37:09,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:09,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:09,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:09,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:09,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-10-28 09:37:09,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781571153] [2020-10-28 09:37:09,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:09,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:09,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625996806] [2020-10-28 09:37:09,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:09,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:09,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:09,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:09,232 INFO L87 Difference]: Start difference. First operand 17673 states and 24384 transitions. Second operand 4 states. [2020-10-28 09:37:10,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:10,154 INFO L93 Difference]: Finished difference Result 36492 states and 49826 transitions. [2020-10-28 09:37:10,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:10,155 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 305 [2020-10-28 09:37:10,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:10,202 INFO L225 Difference]: With dead ends: 36492 [2020-10-28 09:37:10,202 INFO L226 Difference]: Without dead ends: 16901 [2020-10-28 09:37:10,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:37:10,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16901 states. [2020-10-28 09:37:10,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16901 to 16853. [2020-10-28 09:37:10,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16853 states. [2020-10-28 09:37:10,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16853 states to 16853 states and 23200 transitions. [2020-10-28 09:37:10,761 INFO L78 Accepts]: Start accepts. Automaton has 16853 states and 23200 transitions. Word has length 305 [2020-10-28 09:37:10,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:10,762 INFO L481 AbstractCegarLoop]: Abstraction has 16853 states and 23200 transitions. [2020-10-28 09:37:10,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:10,762 INFO L276 IsEmpty]: Start isEmpty. Operand 16853 states and 23200 transitions. [2020-10-28 09:37:10,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-28 09:37:10,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:10,791 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:10,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 09:37:10,791 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:10,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:10,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1675067863, now seen corresponding path program 1 times [2020-10-28 09:37:10,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:10,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801213341] [2020-10-28 09:37:10,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:10,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:11,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:11,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-28 09:37:11,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:11,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-28 09:37:11,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:11,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:11,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:37:11,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 243 [2020-10-28 09:37:11,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-28 09:37:11,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:11,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:11,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:11,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:11,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:11,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:11,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:37:11,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:11,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:11,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:11,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-10-28 09:37:11,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801213341] [2020-10-28 09:37:11,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:37:11,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 09:37:11,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642205926] [2020-10-28 09:37:11,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:37:11,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:11,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:37:11,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:37:11,346 INFO L87 Difference]: Start difference. First operand 16853 states and 23200 transitions. Second operand 5 states. [2020-10-28 09:37:12,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:12,541 INFO L93 Difference]: Finished difference Result 23381 states and 32241 transitions. [2020-10-28 09:37:12,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 09:37:12,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 315 [2020-10-28 09:37:12,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:12,566 INFO L225 Difference]: With dead ends: 23381 [2020-10-28 09:37:12,567 INFO L226 Difference]: Without dead ends: 8595 [2020-10-28 09:37:12,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-28 09:37:12,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8595 states. [2020-10-28 09:37:12,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8595 to 8523. [2020-10-28 09:37:12,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8523 states. [2020-10-28 09:37:12,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8523 states to 8523 states and 11724 transitions. [2020-10-28 09:37:12,897 INFO L78 Accepts]: Start accepts. Automaton has 8523 states and 11724 transitions. Word has length 315 [2020-10-28 09:37:12,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:12,897 INFO L481 AbstractCegarLoop]: Abstraction has 8523 states and 11724 transitions. [2020-10-28 09:37:12,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:37:12,897 INFO L276 IsEmpty]: Start isEmpty. Operand 8523 states and 11724 transitions. [2020-10-28 09:37:12,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-28 09:37:12,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:12,914 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:12,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-28 09:37:12,914 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:12,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:12,915 INFO L82 PathProgramCache]: Analyzing trace with hash -113166506, now seen corresponding path program 1 times [2020-10-28 09:37:12,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:12,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672223813] [2020-10-28 09:37:12,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:12,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:13,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:13,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-28 09:37:13,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:13,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-28 09:37:13,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:13,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:37:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 243 [2020-10-28 09:37:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 09:37:13,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:13,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:13,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:13,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:13,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:13,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:13,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:37:13,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:13,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:13,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:13,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:13,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:13,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:13,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-10-28 09:37:13,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672223813] [2020-10-28 09:37:13,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:37:13,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 09:37:13,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822923210] [2020-10-28 09:37:13,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:37:13,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:13,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:37:13,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:37:13,414 INFO L87 Difference]: Start difference. First operand 8523 states and 11724 transitions. Second operand 5 states. [2020-10-28 09:37:14,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:14,374 INFO L93 Difference]: Finished difference Result 15084 states and 20855 transitions. [2020-10-28 09:37:14,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 09:37:14,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 316 [2020-10-28 09:37:14,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:14,376 INFO L225 Difference]: With dead ends: 15084 [2020-10-28 09:37:14,376 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 09:37:14,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 09:37:14,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 09:37:14,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 09:37:14,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 09:37:14,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 09:37:14,391 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 316 [2020-10-28 09:37:14,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:14,391 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 09:37:14,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:37:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 09:37:14,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 09:37:14,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-28 09:37:14,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 09:37:14,776 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 48 [2020-10-28 09:37:14,932 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 65 [2020-10-28 09:37:15,202 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 73 [2020-10-28 09:37:15,904 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 473 DAG size of output: 72 [2020-10-28 09:37:16,082 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 63 [2020-10-28 09:37:16,200 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 56 [2020-10-28 09:37:16,331 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 64 [2020-10-28 09:37:16,448 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 48 [2020-10-28 09:37:17,583 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 361 DAG size of output: 256 [2020-10-28 09:37:17,938 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 21 [2020-10-28 09:37:18,061 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 9 [2020-10-28 09:37:18,373 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 28 [2020-10-28 09:37:18,475 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 9 [2020-10-28 09:37:19,935 WARN L193 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 3 [2020-10-28 09:37:19,940 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-28 09:37:19,940 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-28 09:37:19,940 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-28 09:37:19,941 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-28 09:37:19,941 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 09:37:19,941 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-28 09:37:19,941 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 09:37:19,941 INFO L274 CegarLoopResult]: For program point L465(lines 465 471) no Hoare annotation was computed. [2020-10-28 09:37:19,942 INFO L277 CegarLoopResult]: At program point L201(lines 200 541) the Hoare annotation is: true [2020-10-28 09:37:19,942 INFO L270 CegarLoopResult]: At program point L135(lines 131 564) the Hoare annotation is: (and (<= 4352 ssl3_connect_~s__state~0) (<= ssl3_connect_~blastFlag~0 3) (<= ssl3_connect_~s__state~0 4432)) [2020-10-28 09:37:19,942 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 09:37:19,942 INFO L274 CegarLoopResult]: For program point L235(lines 235 240) no Hoare annotation was computed. [2020-10-28 09:37:19,943 INFO L274 CegarLoopResult]: For program point L302(lines 302 306) no Hoare annotation was computed. [2020-10-28 09:37:19,943 INFO L274 CegarLoopResult]: For program point L302-2(lines 302 306) no Hoare annotation was computed. [2020-10-28 09:37:19,943 INFO L274 CegarLoopResult]: For program point L170(lines 170 551) no Hoare annotation was computed. [2020-10-28 09:37:19,943 INFO L274 CegarLoopResult]: For program point L137(lines 137 562) no Hoare annotation was computed. [2020-10-28 09:37:19,943 INFO L274 CegarLoopResult]: For program point L104(lines 104 573) no Hoare annotation was computed. [2020-10-28 09:37:19,943 INFO L274 CegarLoopResult]: For program point L435(lines 435 439) no Hoare annotation was computed. [2020-10-28 09:37:19,944 INFO L274 CegarLoopResult]: For program point L435-2(lines 205 537) no Hoare annotation was computed. [2020-10-28 09:37:19,944 INFO L277 CegarLoopResult]: At program point L204(lines 203 540) the Hoare annotation is: true [2020-10-28 09:37:19,944 INFO L270 CegarLoopResult]: At program point L171(lines 167 552) the Hoare annotation is: (and (<= ssl3_connect_~blastFlag~0 4) (<= ssl3_connect_~s__state~0 4512) (<= 4432 ssl3_connect_~s__state~0)) [2020-10-28 09:37:19,944 INFO L270 CegarLoopResult]: At program point L105(lines 104 573) the Hoare annotation is: (and (<= ssl3_connect_~blastFlag~0 3) (<= 4432 ssl3_connect_~s__state~0)) [2020-10-28 09:37:19,944 INFO L274 CegarLoopResult]: For program point L370(lines 370 374) no Hoare annotation was computed. [2020-10-28 09:37:19,944 INFO L274 CegarLoopResult]: For program point L404(lines 404 409) no Hoare annotation was computed. [2020-10-28 09:37:19,945 INFO L274 CegarLoopResult]: For program point L404-2(lines 404 409) no Hoare annotation was computed. [2020-10-28 09:37:19,945 INFO L274 CegarLoopResult]: For program point L173(lines 173 550) no Hoare annotation was computed. [2020-10-28 09:37:19,945 INFO L274 CegarLoopResult]: For program point L140(lines 140 561) no Hoare annotation was computed. [2020-10-28 09:37:19,945 INFO L274 CegarLoopResult]: For program point L107(lines 107 572) no Hoare annotation was computed. [2020-10-28 09:37:19,945 INFO L270 CegarLoopResult]: At program point L141(lines 137 562) the Hoare annotation is: (and (<= 4352 ssl3_connect_~s__state~0) (<= ssl3_connect_~blastFlag~0 3) (<= ssl3_connect_~s__state~0 4432)) [2020-10-28 09:37:19,945 INFO L270 CegarLoopResult]: At program point L538(lines 101 604) the Hoare annotation is: (let ((.cse0 (<= ssl3_connect_~s__state~0 4352)) (.cse2 (<= 4352 ssl3_connect_~s__state~0)) (.cse1 (<= ssl3_connect_~blastFlag~0 4)) (.cse3 (= ssl3_connect_~s__hit~0 0)) (.cse4 (= ssl3_connect_~s__s3__tmp__next_state___0~0 4560))) (or (and .cse0 .cse1 .cse2 (not .cse3) (<= ssl3_connect_~s__s3__tmp__next_state___0~0 3)) (<= ssl3_connect_~s__state~0 3) (and .cse0 .cse1 .cse3 .cse2 .cse4) (and .cse1 (<= ssl3_connect_~s__state~0 4528) (<= 4432 ssl3_connect_~s__state~0)) (and .cse1 (= ssl3_connect_~s__state~0 4560) .cse3 .cse4) (<= ssl3_connect_~blastFlag~0 3))) [2020-10-28 09:37:19,946 INFO L274 CegarLoopResult]: For program point L76(lines 76 84) no Hoare annotation was computed. [2020-10-28 09:37:19,946 INFO L277 CegarLoopResult]: At program point L605(lines 100 606) the Hoare annotation is: true [2020-10-28 09:37:19,946 INFO L274 CegarLoopResult]: For program point L176(lines 176 549) no Hoare annotation was computed. [2020-10-28 09:37:19,946 INFO L274 CegarLoopResult]: For program point L143(lines 143 560) no Hoare annotation was computed. [2020-10-28 09:37:19,946 INFO L274 CegarLoopResult]: For program point L110(lines 110 571) no Hoare annotation was computed. [2020-10-28 09:37:19,946 INFO L274 CegarLoopResult]: For program point L375(lines 375 379) no Hoare annotation was computed. [2020-10-28 09:37:19,946 INFO L274 CegarLoopResult]: For program point L375-2(lines 375 379) no Hoare annotation was computed. [2020-10-28 09:37:19,947 INFO L270 CegarLoopResult]: At program point L210(lines 107 572) the Hoare annotation is: (<= ssl3_connect_~blastFlag~0 3) [2020-10-28 09:37:19,947 INFO L270 CegarLoopResult]: At program point L177(lines 173 550) the Hoare annotation is: (and (<= ssl3_connect_~blastFlag~0 4) (<= ssl3_connect_~s__state~0 4512) (<= 4432 ssl3_connect_~s__state~0)) [2020-10-28 09:37:19,947 INFO L274 CegarLoopResult]: For program point L574(lines 574 602) no Hoare annotation was computed. [2020-10-28 09:37:19,947 INFO L274 CegarLoopResult]: For program point L79(lines 79 83) no Hoare annotation was computed. [2020-10-28 09:37:19,947 INFO L274 CegarLoopResult]: For program point L79-2(lines 76 84) no Hoare annotation was computed. [2020-10-28 09:37:19,947 INFO L274 CegarLoopResult]: For program point L575(lines 575 599) no Hoare annotation was computed. [2020-10-28 09:37:19,947 INFO L274 CegarLoopResult]: For program point L509-1(lines 205 537) no Hoare annotation was computed. [2020-10-28 09:37:19,947 INFO L274 CegarLoopResult]: For program point L344(lines 344 349) no Hoare annotation was computed. [2020-10-28 09:37:19,948 INFO L274 CegarLoopResult]: For program point L278(lines 278 282) no Hoare annotation was computed. [2020-10-28 09:37:19,948 INFO L274 CegarLoopResult]: For program point L311-1(lines 311 325) no Hoare annotation was computed. [2020-10-28 09:37:19,948 INFO L274 CegarLoopResult]: For program point L179(lines 179 548) no Hoare annotation was computed. [2020-10-28 09:37:19,948 INFO L274 CegarLoopResult]: For program point L146(lines 146 559) no Hoare annotation was computed. [2020-10-28 09:37:19,948 INFO L274 CegarLoopResult]: For program point L113(lines 113 570) no Hoare annotation was computed. [2020-10-28 09:37:19,948 INFO L274 CegarLoopResult]: For program point L609(lines 609 613) no Hoare annotation was computed. [2020-10-28 09:37:19,948 INFO L274 CegarLoopResult]: For program point L576(lines 576 585) no Hoare annotation was computed. [2020-10-28 09:37:19,949 INFO L274 CegarLoopResult]: For program point L609-2(lines 609 613) no Hoare annotation was computed. [2020-10-28 09:37:19,949 INFO L274 CegarLoopResult]: For program point L576-2(lines 575 597) no Hoare annotation was computed. [2020-10-28 09:37:19,949 INFO L270 CegarLoopResult]: At program point L147(lines 143 560) the Hoare annotation is: (and (<= ssl3_connect_~blastFlag~0 4) (<= ssl3_connect_~s__state~0 4448) (<= 4432 ssl3_connect_~s__state~0)) [2020-10-28 09:37:19,949 INFO L274 CegarLoopResult]: For program point L578(lines 578 582) no Hoare annotation was computed. [2020-10-28 09:37:19,949 INFO L274 CegarLoopResult]: For program point L446(lines 446 451) no Hoare annotation was computed. [2020-10-28 09:37:19,949 INFO L274 CegarLoopResult]: For program point L215(lines 215 219) no Hoare annotation was computed. [2020-10-28 09:37:19,949 INFO L274 CegarLoopResult]: For program point L182(lines 182 547) no Hoare annotation was computed. [2020-10-28 09:37:19,949 INFO L274 CegarLoopResult]: For program point L149(lines 149 558) no Hoare annotation was computed. [2020-10-28 09:37:19,950 INFO L274 CegarLoopResult]: For program point L215-2(lines 205 537) no Hoare annotation was computed. [2020-10-28 09:37:19,950 INFO L274 CegarLoopResult]: For program point L116(lines 116 569) no Hoare annotation was computed. [2020-10-28 09:37:19,950 INFO L274 CegarLoopResult]: For program point L480(lines 480 484) no Hoare annotation was computed. [2020-10-28 09:37:19,950 INFO L274 CegarLoopResult]: For program point L315(lines 315 319) no Hoare annotation was computed. [2020-10-28 09:37:19,950 INFO L274 CegarLoopResult]: For program point L315-2(lines 313 325) no Hoare annotation was computed. [2020-10-28 09:37:19,950 INFO L270 CegarLoopResult]: At program point L183(lines 179 548) the Hoare annotation is: (and (<= ssl3_connect_~blastFlag~0 4) (<= ssl3_connect_~s__state~0 4528) (<= 4432 ssl3_connect_~s__state~0)) [2020-10-28 09:37:19,950 INFO L277 CegarLoopResult]: At program point ssl3_connectENTRY(lines 10 623) the Hoare annotation is: true [2020-10-28 09:37:19,951 INFO L274 CegarLoopResult]: For program point L514-1(lines 514 518) no Hoare annotation was computed. [2020-10-28 09:37:19,951 INFO L274 CegarLoopResult]: For program point L415(lines 415 419) no Hoare annotation was computed. [2020-10-28 09:37:19,951 INFO L274 CegarLoopResult]: For program point L251(lines 251 256) no Hoare annotation was computed. [2020-10-28 09:37:19,951 INFO L274 CegarLoopResult]: For program point L185(lines 185 546) no Hoare annotation was computed. [2020-10-28 09:37:19,951 INFO L274 CegarLoopResult]: For program point L152(lines 152 557) no Hoare annotation was computed. [2020-10-28 09:37:19,951 INFO L274 CegarLoopResult]: For program point L119(lines 119 568) no Hoare annotation was computed. [2020-10-28 09:37:19,951 INFO L274 CegarLoopResult]: For program point L86(lines 86 94) no Hoare annotation was computed. [2020-10-28 09:37:19,952 INFO L274 CegarLoopResult]: For program point L86-1(lines 68 622) no Hoare annotation was computed. [2020-10-28 09:37:19,952 INFO L270 CegarLoopResult]: At program point L153(lines 149 558) the Hoare annotation is: (and (<= ssl3_connect_~blastFlag~0 4) (<= 4432 ssl3_connect_~s__state~0) (<= ssl3_connect_~s__state~0 4464)) [2020-10-28 09:37:19,952 INFO L274 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-10-28 09:37:19,952 INFO L274 CegarLoopResult]: For program point L616(line 616) no Hoare annotation was computed. [2020-10-28 09:37:19,952 INFO L274 CegarLoopResult]: For program point L485(lines 485 489) no Hoare annotation was computed. [2020-10-28 09:37:19,952 INFO L274 CegarLoopResult]: For program point L485-2(lines 485 489) no Hoare annotation was computed. [2020-10-28 09:37:19,952 INFO L274 CegarLoopResult]: For program point L287(lines 287 295) no Hoare annotation was computed. [2020-10-28 09:37:19,952 INFO L274 CegarLoopResult]: For program point L188(lines 188 545) no Hoare annotation was computed. [2020-10-28 09:37:19,953 INFO L274 CegarLoopResult]: For program point L155(lines 155 556) no Hoare annotation was computed. [2020-10-28 09:37:19,953 INFO L274 CegarLoopResult]: For program point L122(lines 122 567) no Hoare annotation was computed. [2020-10-28 09:37:19,953 INFO L274 CegarLoopResult]: For program point L387(lines 387 391) no Hoare annotation was computed. [2020-10-28 09:37:19,953 INFO L274 CegarLoopResult]: For program point L354(lines 354 358) no Hoare annotation was computed. [2020-10-28 09:37:19,953 INFO L270 CegarLoopResult]: At program point L189(lines 185 546) the Hoare annotation is: (and (<= ssl3_connect_~blastFlag~0 4) (<= 4432 ssl3_connect_~s__state~0)) [2020-10-28 09:37:19,953 INFO L270 CegarLoopResult]: At program point L123(lines 119 568) the Hoare annotation is: (and (<= 4352 ssl3_connect_~s__state~0) (<= ssl3_connect_~s__state~0 4432) (<= ssl3_connect_~blastFlag~0 3)) [2020-10-28 09:37:19,954 INFO L270 CegarLoopResult]: At program point L355(lines 68 622) the Hoare annotation is: false [2020-10-28 09:37:19,954 INFO L277 CegarLoopResult]: At program point L620(lines 68 622) the Hoare annotation is: true [2020-10-28 09:37:19,954 INFO L274 CegarLoopResult]: For program point L587(lines 587 593) no Hoare annotation was computed. [2020-10-28 09:37:19,954 INFO L274 CegarLoopResult]: For program point L521(lines 521 525) no Hoare annotation was computed. [2020-10-28 09:37:19,954 INFO L274 CegarLoopResult]: For program point L521-2(lines 521 525) no Hoare annotation was computed. [2020-10-28 09:37:19,954 INFO L274 CegarLoopResult]: For program point L290(lines 290 294) no Hoare annotation was computed. [2020-10-28 09:37:19,954 INFO L274 CegarLoopResult]: For program point L290-2(lines 205 537) no Hoare annotation was computed. [2020-10-28 09:37:19,954 INFO L274 CegarLoopResult]: For program point L191(lines 191 544) no Hoare annotation was computed. [2020-10-28 09:37:19,954 INFO L274 CegarLoopResult]: For program point L158(lines 158 555) no Hoare annotation was computed. [2020-10-28 09:37:19,955 INFO L274 CegarLoopResult]: For program point L125(lines 125 566) no Hoare annotation was computed. [2020-10-28 09:37:19,955 INFO L274 CegarLoopResult]: For program point ssl3_connectEXIT(lines 10 623) no Hoare annotation was computed. [2020-10-28 09:37:19,955 INFO L274 CegarLoopResult]: For program point L456(lines 456 460) no Hoare annotation was computed. [2020-10-28 09:37:19,955 INFO L274 CegarLoopResult]: For program point ssl3_connectFINAL(lines 10 623) no Hoare annotation was computed. [2020-10-28 09:37:19,955 INFO L274 CegarLoopResult]: For program point L359(lines 359 363) no Hoare annotation was computed. [2020-10-28 09:37:19,955 INFO L274 CegarLoopResult]: For program point L227(lines 227 244) no Hoare annotation was computed. [2020-10-28 09:37:19,955 INFO L274 CegarLoopResult]: For program point L194(lines 194 543) no Hoare annotation was computed. [2020-10-28 09:37:19,955 INFO L274 CegarLoopResult]: For program point L161(lines 161 554) no Hoare annotation was computed. [2020-10-28 09:37:19,956 INFO L274 CegarLoopResult]: For program point L227-2(lines 205 537) no Hoare annotation was computed. [2020-10-28 09:37:19,956 INFO L274 CegarLoopResult]: For program point L128(lines 128 565) no Hoare annotation was computed. [2020-10-28 09:37:19,956 INFO L270 CegarLoopResult]: At program point L195(lines 191 544) the Hoare annotation is: (let ((.cse0 (<= 4432 ssl3_connect_~s__state~0))) (or (and (= ssl3_connect_~s__hit~0 0) .cse0) (and (<= ssl3_connect_~blastFlag~0 3) .cse0))) [2020-10-28 09:37:19,956 INFO L270 CegarLoopResult]: At program point L129(lines 125 566) the Hoare annotation is: (and (<= 4352 ssl3_connect_~s__state~0) (<= ssl3_connect_~blastFlag~0 3) (<= ssl3_connect_~s__state~0 4432)) [2020-10-28 09:37:19,956 INFO L274 CegarLoopResult]: For program point L493-1(lines 493 505) no Hoare annotation was computed. [2020-10-28 09:37:19,956 INFO L274 CegarLoopResult]: For program point L427(lines 427 431) no Hoare annotation was computed. [2020-10-28 09:37:19,956 INFO L274 CegarLoopResult]: For program point L229(lines 229 234) no Hoare annotation was computed. [2020-10-28 09:37:19,957 INFO L274 CegarLoopResult]: For program point L197(lines 197 542) no Hoare annotation was computed. [2020-10-28 09:37:19,957 INFO L274 CegarLoopResult]: For program point L164(lines 164 553) no Hoare annotation was computed. [2020-10-28 09:37:19,957 INFO L274 CegarLoopResult]: For program point L131(lines 131 564) no Hoare annotation was computed. [2020-10-28 09:37:19,957 INFO L274 CegarLoopResult]: For program point L528(lines 528 532) no Hoare annotation was computed. [2020-10-28 09:37:19,957 INFO L270 CegarLoopResult]: At program point L198(lines 197 542) the Hoare annotation is: (let ((.cse1 (<= ssl3_connect_~blastFlag~0 4)) (.cse3 (= ssl3_connect_~s__hit~0 0)) (.cse0 (<= ssl3_connect_~s__state~0 4352)) (.cse2 (<= 4352 ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 .cse2 (not .cse3) (<= ssl3_connect_~s__s3__tmp__next_state___0~0 3)) (and .cse0 .cse1 .cse3 .cse2 (= ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (and .cse0 .cse2 (<= ssl3_connect_~blastFlag~0 3)))) [2020-10-28 09:37:19,957 INFO L270 CegarLoopResult]: At program point L165(lines 155 556) the Hoare annotation is: (and (<= ssl3_connect_~blastFlag~0 4) (<= ssl3_connect_~s__state~0 4480) (<= 4432 ssl3_connect_~s__state~0)) [2020-10-28 09:37:19,957 INFO L274 CegarLoopResult]: For program point L496(lines 496 501) no Hoare annotation was computed. [2020-10-28 09:37:19,958 INFO L274 CegarLoopResult]: For program point L463(lines 463 474) no Hoare annotation was computed. [2020-10-28 09:37:19,958 INFO L274 CegarLoopResult]: For program point L463-1(lines 463 474) no Hoare annotation was computed. [2020-10-28 09:37:19,958 INFO L274 CegarLoopResult]: For program point L265(lines 265 269) no Hoare annotation was computed. [2020-10-28 09:37:19,958 INFO L274 CegarLoopResult]: For program point L265-2(lines 205 537) no Hoare annotation was computed. [2020-10-28 09:37:19,958 INFO L274 CegarLoopResult]: For program point L398(lines 398 402) no Hoare annotation was computed. [2020-10-28 09:37:19,958 INFO L274 CegarLoopResult]: For program point L332(lines 332 336) no Hoare annotation was computed. [2020-10-28 09:37:19,958 INFO L274 CegarLoopResult]: For program point L332-2(lines 205 537) no Hoare annotation was computed. [2020-10-28 09:37:19,959 INFO L274 CegarLoopResult]: For program point L200(lines 200 541) no Hoare annotation was computed. [2020-10-28 09:37:19,959 INFO L274 CegarLoopResult]: For program point L167(lines 167 552) no Hoare annotation was computed. [2020-10-28 09:37:19,959 INFO L274 CegarLoopResult]: For program point L134(lines 134 563) no Hoare annotation was computed. [2020-10-28 09:37:19,959 INFO L274 CegarLoopResult]: For program point L101-1(lines 68 622) no Hoare annotation was computed. [2020-10-28 09:37:19,959 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 09:37:19,959 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-28 09:37:19,959 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 09:37:19,960 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 09:37:19,960 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 624 634) the Hoare annotation is: true [2020-10-28 09:37:19,960 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 624 634) no Hoare annotation was computed. [2020-10-28 09:37:19,960 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 624 634) no Hoare annotation was computed. [2020-10-28 09:37:19,960 INFO L277 CegarLoopResult]: At program point L629(line 629) the Hoare annotation is: true [2020-10-28 09:37:19,960 INFO L274 CegarLoopResult]: For program point L629-1(line 629) no Hoare annotation was computed. [2020-10-28 09:37:19,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:37:19 BoogieIcfgContainer [2020-10-28 09:37:19,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 09:37:19,987 INFO L168 Benchmark]: Toolchain (without parser) took 41812.08 ms. Allocated memory was 168.8 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 143.5 MB in the beginning and 1.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 875.8 MB. Max. memory is 8.0 GB. [2020-10-28 09:37:19,987 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 168.8 MB. Free memory is still 140.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:37:19,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.08 ms. Allocated memory is still 168.8 MB. Free memory was 142.9 MB in the beginning and 128.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-28 09:37:19,988 INFO L168 Benchmark]: Boogie Preprocessor took 73.69 ms. Allocated memory is still 168.8 MB. Free memory was 128.5 MB in the beginning and 126.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 09:37:19,989 INFO L168 Benchmark]: RCFGBuilder took 1188.07 ms. Allocated memory is still 168.8 MB. Free memory was 125.9 MB in the beginning and 117.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. [2020-10-28 09:37:19,989 INFO L168 Benchmark]: TraceAbstraction took 40127.44 ms. Allocated memory was 168.8 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 117.0 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 848.7 MB. Max. memory is 8.0 GB. [2020-10-28 09:37:19,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 168.8 MB. Free memory is still 140.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 411.08 ms. Allocated memory is still 168.8 MB. Free memory was 142.9 MB in the beginning and 128.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 73.69 ms. Allocated memory is still 168.8 MB. Free memory was 128.5 MB in the beginning and 126.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1188.07 ms. Allocated memory is still 168.8 MB. Free memory was 125.9 MB in the beginning and 117.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 40127.44 ms. Allocated memory was 168.8 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 117.0 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 848.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 179]: Loop Invariant Derived loop invariant: (blastFlag <= 4 && s__state <= 4528) && 4432 <= s__state - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag <= 3) && s__state <= 4432 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (blastFlag <= 4 && s__state <= 4512) && 4432 <= s__state - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (blastFlag <= 4 && 4432 <= s__state) && s__state <= 4464 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (s__hit == 0 && 4432 <= s__state) || (blastFlag <= 3 && 4432 <= s__state) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag <= 3) && s__state <= 4432 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: (blastFlag <= 4 && s__state <= 4512) && 4432 <= s__state - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag <= 3) && s__state <= 4432 - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: (((((s__state <= 4352 && blastFlag <= 4) && 4352 <= s__state) && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) || ((((s__state <= 4352 && blastFlag <= 4) && s__hit == 0) && 4352 <= s__state) && s__s3__tmp__next_state___0 == 4560)) || ((s__state <= 4352 && 4352 <= s__state) && blastFlag <= 3) - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: (blastFlag <= 4 && s__state <= 4480) && 4432 <= s__state - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: (4352 <= s__state && s__state <= 4432) && blastFlag <= 3 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: ((((((((s__state <= 4352 && blastFlag <= 4) && 4352 <= s__state) && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) || s__state <= 3) || ((((s__state <= 4352 && blastFlag <= 4) && s__hit == 0) && 4352 <= s__state) && s__s3__tmp__next_state___0 == 4560)) || ((blastFlag <= 4 && s__state <= 4528) && 4432 <= s__state)) || (((blastFlag <= 4 && s__state == 4560) && s__hit == 0) && s__s3__tmp__next_state___0 == 4560)) || blastFlag <= 3 - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 4432 <= s__state - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: blastFlag <= 4 && 4432 <= s__state - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: blastFlag <= 3 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (blastFlag <= 4 && s__state <= 4448) && 4432 <= s__state - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 139 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 34.4s, OverallIterations: 22, TraceHistogramMax: 14, AutomataDifference: 16.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4086 SDtfs, 7337 SDslu, 189 SDs, 0 SdLazy, 4223 SolverSat, 593 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17673occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.5s AutomataMinimizationTime, 22 MinimizatonAttempts, 4925 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 49 PreInvPairs, 917 NumberOfFragments, 281 HoareAnnotationTreeSize, 49 FomulaSimplifications, 1325846 FormulaSimplificationTreeSizeReduction, 3.1s HoareSimplificationTime, 28 FomulaSimplificationsInter, 41681 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 4311 NumberOfCodeBlocks, 4311 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 4289 ConstructedInterpolants, 0 QuantifiedInterpolants, 1732055 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 20 PerfectInterpolantSequences, 11899/11923 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...