/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_srvr_1a.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 09:36:47,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 09:36:47,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 09:36:47,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 09:36:47,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 09:36:47,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 09:36:47,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 09:36:47,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 09:36:47,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 09:36:47,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 09:36:47,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 09:36:47,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 09:36:47,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 09:36:47,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 09:36:47,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 09:36:47,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 09:36:47,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 09:36:47,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 09:36:47,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 09:36:47,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 09:36:47,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 09:36:47,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 09:36:47,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 09:36:47,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 09:36:47,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 09:36:47,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 09:36:47,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 09:36:47,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 09:36:47,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 09:36:47,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 09:36:47,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 09:36:47,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 09:36:47,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 09:36:47,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 09:36:47,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 09:36:47,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 09:36:47,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 09:36:47,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 09:36:47,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 09:36:47,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 09:36:47,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 09:36:47,776 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 09:36:47,830 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 09:36:47,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 09:36:47,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 09:36:47,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 09:36:47,836 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 09:36:47,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 09:36:47,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 09:36:47,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 09:36:47,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 09:36:47,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 09:36:47,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 09:36:47,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 09:36:47,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 09:36:47,840 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 09:36:47,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 09:36:47,840 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 09:36:47,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 09:36:47,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 09:36:47,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 09:36:47,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 09:36:47,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 09:36:47,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:36:47,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 09:36:47,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 09:36:47,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 09:36:47,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 09:36:47,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 09:36:47,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 09:36:47,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 09:36:47,845 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 09:36:48,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 09:36:48,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 09:36:48,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 09:36:48,323 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 09:36:48,324 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 09:36:48,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c [2020-10-28 09:36:48,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7820cd6b/ffa4f4ef81004c62b4714a0e98fd1226/FLAG730214b42 [2020-10-28 09:36:49,144 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 09:36:49,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c [2020-10-28 09:36:49,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7820cd6b/ffa4f4ef81004c62b4714a0e98fd1226/FLAG730214b42 [2020-10-28 09:36:49,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7820cd6b/ffa4f4ef81004c62b4714a0e98fd1226 [2020-10-28 09:36:49,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 09:36:49,483 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 09:36:49,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 09:36:49,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 09:36:49,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 09:36:49,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:36:49" (1/1) ... [2020-10-28 09:36:49,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bd6ea22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:49, skipping insertion in model container [2020-10-28 09:36:49,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:36:49" (1/1) ... [2020-10-28 09:36:49,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 09:36:49,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 09:36:49,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:36:49,812 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 09:36:49,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:36:49,918 INFO L208 MainTranslator]: Completed translation [2020-10-28 09:36:49,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:49 WrapperNode [2020-10-28 09:36:49,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 09:36:49,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 09:36:49,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 09:36:49,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 09:36:49,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:49" (1/1) ... [2020-10-28 09:36:49,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:49" (1/1) ... [2020-10-28 09:36:49,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:49" (1/1) ... [2020-10-28 09:36:49,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:49" (1/1) ... [2020-10-28 09:36:49,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:49" (1/1) ... [2020-10-28 09:36:49,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:49" (1/1) ... [2020-10-28 09:36:49,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:49" (1/1) ... [2020-10-28 09:36:49,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 09:36:49,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 09:36:49,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 09:36:49,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 09:36:49,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:49" (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 09:36:50,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 09:36:50,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 09:36:50,065 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 09:36:50,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-10-28 09:36:50,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 09:36:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 09:36:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 09:36:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 09:36:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 09:36:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-28 09:36:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 09:36:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 09:36:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 09:36:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-10-28 09:36:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 09:36:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 09:36:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 09:36:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 09:36:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 09:36:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 09:36:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 09:36:50,379 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-28 09:36:50,885 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-10-28 09:36:50,885 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-10-28 09:36:50,914 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 09:36:50,914 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 09:36:50,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:36:50 BoogieIcfgContainer [2020-10-28 09:36:50,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 09:36:50,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 09:36:50,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 09:36:50,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 09:36:50,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:36:49" (1/3) ... [2020-10-28 09:36:50,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7ca55a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:36:50, skipping insertion in model container [2020-10-28 09:36:50,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:49" (2/3) ... [2020-10-28 09:36:50,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7ca55a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:36:50, skipping insertion in model container [2020-10-28 09:36:50,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:36:50" (3/3) ... [2020-10-28 09:36:50,927 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.BV.c.cil.c [2020-10-28 09:36:50,943 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 09:36:50,950 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 09:36:50,967 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 09:36:51,001 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 09:36:51,001 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 09:36:51,002 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 09:36:51,002 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 09:36:51,002 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 09:36:51,002 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 09:36:51,003 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 09:36:51,003 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 09:36:51,028 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2020-10-28 09:36:51,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-28 09:36:51,040 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:51,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:51,042 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:51,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:51,050 INFO L82 PathProgramCache]: Analyzing trace with hash -76443695, now seen corresponding path program 1 times [2020-10-28 09:36:51,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:51,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654372779] [2020-10-28 09:36:51,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:51,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:51,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:51,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:52,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:52,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 09:36:52,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 09:36:52,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 896 [2020-10-28 09:36:52,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:52,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:52,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:52,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 09:36:52,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-28 09:36:52,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 09:36:52,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:52,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:52,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:52,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:52,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:52,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 09:36:52,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:52,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:52,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:52,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:52,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:52,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:52,319 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 09:36:52,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654372779] [2020-10-28 09:36:52,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:52,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:52,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606320604] [2020-10-28 09:36:52,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:52,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:52,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:52,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:52,346 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 4 states. [2020-10-28 09:36:53,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:53,083 INFO L93 Difference]: Finished difference Result 417 states and 706 transitions. [2020-10-28 09:36:53,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:53,085 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-10-28 09:36:53,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:53,099 INFO L225 Difference]: With dead ends: 417 [2020-10-28 09:36:53,099 INFO L226 Difference]: Without dead ends: 249 [2020-10-28 09:36:53,104 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 09:36:53,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-10-28 09:36:53,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2020-10-28 09:36:53,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-28 09:36:53,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 379 transitions. [2020-10-28 09:36:53,184 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 379 transitions. Word has length 51 [2020-10-28 09:36:53,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:53,185 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 379 transitions. [2020-10-28 09:36:53,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:53,185 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 379 transitions. [2020-10-28 09:36:53,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-28 09:36:53,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:53,190 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 09:36:53,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 09:36:53,191 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:53,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:53,192 INFO L82 PathProgramCache]: Analyzing trace with hash -2044036778, now seen corresponding path program 1 times [2020-10-28 09:36:53,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:53,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276331352] [2020-10-28 09:36:53,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:53,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:53,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:53,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:53,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:53,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 09:36:53,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 09:36:53,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-28 09:36:53,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:53,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:53,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:53,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-28 09:36:53,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-28 09:36:53,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:36:53,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:53,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:53,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:53,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:53,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:53,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 09:36:53,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:53,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:53,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:53,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:53,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:53,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:36:53,561 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 09:36:53,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276331352] [2020-10-28 09:36:53,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:53,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:53,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679038246] [2020-10-28 09:36:53,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:53,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:53,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:53,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:53,565 INFO L87 Difference]: Start difference. First operand 249 states and 379 transitions. Second operand 4 states. [2020-10-28 09:36:54,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:54,041 INFO L93 Difference]: Finished difference Result 484 states and 745 transitions. [2020-10-28 09:36:54,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:54,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-28 09:36:54,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:54,046 INFO L225 Difference]: With dead ends: 484 [2020-10-28 09:36:54,046 INFO L226 Difference]: Without dead ends: 365 [2020-10-28 09:36:54,048 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 09:36:54,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-10-28 09:36:54,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2020-10-28 09:36:54,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-10-28 09:36:54,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 557 transitions. [2020-10-28 09:36:54,081 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 557 transitions. Word has length 67 [2020-10-28 09:36:54,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:54,081 INFO L481 AbstractCegarLoop]: Abstraction has 365 states and 557 transitions. [2020-10-28 09:36:54,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:54,081 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 557 transitions. [2020-10-28 09:36:54,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-28 09:36:54,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:54,086 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 09:36:54,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 09:36:54,087 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:54,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:54,087 INFO L82 PathProgramCache]: Analyzing trace with hash -769190382, now seen corresponding path program 1 times [2020-10-28 09:36:54,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:54,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019579652] [2020-10-28 09:36:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:54,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:54,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:54,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:54,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:54,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-28 09:36:54,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 09:36:54,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-28 09:36:54,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:54,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:54,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:54,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-28 09:36:54,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-28 09:36:54,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:54,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:54,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:54,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:54,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:54,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:54,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:36:54,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:54,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:54,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:54,425 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-28 09:36:54,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019579652] [2020-10-28 09:36:54,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:54,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:54,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994101121] [2020-10-28 09:36:54,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:54,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:54,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:54,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:54,428 INFO L87 Difference]: Start difference. First operand 365 states and 557 transitions. Second operand 4 states. [2020-10-28 09:36:54,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:54,929 INFO L93 Difference]: Finished difference Result 716 states and 1101 transitions. [2020-10-28 09:36:54,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:54,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-10-28 09:36:54,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:54,936 INFO L225 Difference]: With dead ends: 716 [2020-10-28 09:36:54,936 INFO L226 Difference]: Without dead ends: 481 [2020-10-28 09:36:54,938 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 09:36:54,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-28 09:36:54,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-28 09:36:54,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-28 09:36:54,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 736 transitions. [2020-10-28 09:36:54,989 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 736 transitions. Word has length 88 [2020-10-28 09:36:54,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:54,989 INFO L481 AbstractCegarLoop]: Abstraction has 481 states and 736 transitions. [2020-10-28 09:36:54,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:54,990 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 736 transitions. [2020-10-28 09:36:54,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-28 09:36:54,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:54,996 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-10-28 09:36:54,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 09:36:54,997 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:54,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:54,998 INFO L82 PathProgramCache]: Analyzing trace with hash 816009435, now seen corresponding path program 1 times [2020-10-28 09:36:54,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:54,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [559846742] [2020-10-28 09:36:54,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:55,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:55,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:55,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-28 09:36:55,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:55,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-28 09:36:55,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:55,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:55,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:55,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-28 09:36:55,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-28 09:36:55,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:55,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:55,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:55,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:55,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:55,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:55,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 09:36:55,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:55,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:55,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:55,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:55,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:55,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:55,300 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-28 09:36:55,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [559846742] [2020-10-28 09:36:55,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:55,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:55,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382585666] [2020-10-28 09:36:55,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:55,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:55,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:55,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:55,304 INFO L87 Difference]: Start difference. First operand 481 states and 736 transitions. Second operand 4 states. [2020-10-28 09:36:55,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:55,816 INFO L93 Difference]: Finished difference Result 600 states and 920 transitions. [2020-10-28 09:36:55,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:55,817 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2020-10-28 09:36:55,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:55,821 INFO L225 Difference]: With dead ends: 600 [2020-10-28 09:36:55,822 INFO L226 Difference]: Without dead ends: 597 [2020-10-28 09:36:55,822 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 09:36:55,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-10-28 09:36:55,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2020-10-28 09:36:55,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-28 09:36:55,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 916 transitions. [2020-10-28 09:36:55,859 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 916 transitions. Word has length 128 [2020-10-28 09:36:55,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:55,859 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 916 transitions. [2020-10-28 09:36:55,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:55,860 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 916 transitions. [2020-10-28 09:36:55,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-28 09:36:55,863 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:55,863 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2020-10-28 09:36:55,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 09:36:55,864 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:55,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:55,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1810139919, now seen corresponding path program 1 times [2020-10-28 09:36:55,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:55,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002364037] [2020-10-28 09:36:55,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:55,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:56,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:56,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:56,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-28 09:36:56,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:36:56,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-28 09:36:56,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:56,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:56,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:56,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-10-28 09:36:56,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 09:36:56,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:56,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:56,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:56,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:56,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:56,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:56,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:56,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:36:56,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:56,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:56,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:56,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:56,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:56,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:36:56,238 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-28 09:36:56,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002364037] [2020-10-28 09:36:56,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:56,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:56,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371547114] [2020-10-28 09:36:56,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:56,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:56,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:56,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:56,244 INFO L87 Difference]: Start difference. First operand 597 states and 916 transitions. Second operand 4 states. [2020-10-28 09:36:56,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:56,965 INFO L93 Difference]: Finished difference Result 1400 states and 2224 transitions. [2020-10-28 09:36:56,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:56,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-10-28 09:36:56,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:56,970 INFO L225 Difference]: With dead ends: 1400 [2020-10-28 09:36:56,971 INFO L226 Difference]: Without dead ends: 592 [2020-10-28 09:36:56,973 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 09:36:56,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2020-10-28 09:36:57,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2020-10-28 09:36:57,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-10-28 09:36:57,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 901 transitions. [2020-10-28 09:36:57,007 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 901 transitions. Word has length 166 [2020-10-28 09:36:57,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:57,007 INFO L481 AbstractCegarLoop]: Abstraction has 592 states and 901 transitions. [2020-10-28 09:36:57,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:57,008 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 901 transitions. [2020-10-28 09:36:57,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-28 09:36:57,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:57,011 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2020-10-28 09:36:57,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 09:36:57,011 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:57,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:57,012 INFO L82 PathProgramCache]: Analyzing trace with hash 912746641, now seen corresponding path program 1 times [2020-10-28 09:36:57,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:57,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206772091] [2020-10-28 09:36:57,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:57,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:57,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:57,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:57,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:57,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:57,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-28 09:36:57,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:36:57,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 577 [2020-10-28 09:36:57,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:57,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-28 09:36:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 09:36:57,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:36:57,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:57,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:57,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:57,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:57,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:57,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:36:57,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:57,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:57,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:57,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:57,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:57,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 09:36:57,759 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-28 09:36:57,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206772091] [2020-10-28 09:36:57,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:57,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:57,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023770419] [2020-10-28 09:36:57,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:57,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:57,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:57,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:57,764 INFO L87 Difference]: Start difference. First operand 592 states and 901 transitions. Second operand 4 states. [2020-10-28 09:36:58,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:58,408 INFO L93 Difference]: Finished difference Result 1741 states and 2661 transitions. [2020-10-28 09:36:58,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:58,409 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-10-28 09:36:58,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:58,415 INFO L225 Difference]: With dead ends: 1741 [2020-10-28 09:36:58,415 INFO L226 Difference]: Without dead ends: 703 [2020-10-28 09:36:58,418 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 09:36:58,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2020-10-28 09:36:58,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 702. [2020-10-28 09:36:58,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 702 states. [2020-10-28 09:36:58,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1059 transitions. [2020-10-28 09:36:58,468 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1059 transitions. Word has length 166 [2020-10-28 09:36:58,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:58,470 INFO L481 AbstractCegarLoop]: Abstraction has 702 states and 1059 transitions. [2020-10-28 09:36:58,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:58,470 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1059 transitions. [2020-10-28 09:36:58,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-28 09:36:58,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:58,475 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2020-10-28 09:36:58,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 09:36:58,476 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:58,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:58,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1400793747, now seen corresponding path program 1 times [2020-10-28 09:36:58,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:58,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942162109] [2020-10-28 09:36:58,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:58,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:58,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:58,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:58,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:58,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:59,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:59,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-28 09:36:59,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 09:36:59,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 728 [2020-10-28 09:36:59,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:59,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:36:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-10-28 09:36:59,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 09:36:59,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:36:59,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:36:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:59,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:59,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:36:59,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:36:59,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:36:59,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 09:36:59,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:36:59,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:36:59,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:36:59,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:36:59,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:36:59,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:36:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-28 09:36:59,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942162109] [2020-10-28 09:36:59,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:36:59,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:36:59,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945543508] [2020-10-28 09:36:59,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:36:59,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:36:59,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:36:59,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:36:59,353 INFO L87 Difference]: Start difference. First operand 702 states and 1059 transitions. Second operand 4 states. [2020-10-28 09:36:59,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:36:59,836 INFO L93 Difference]: Finished difference Result 1726 states and 2677 transitions. [2020-10-28 09:36:59,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:36:59,836 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-10-28 09:36:59,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:36:59,843 INFO L225 Difference]: With dead ends: 1726 [2020-10-28 09:36:59,843 INFO L226 Difference]: Without dead ends: 1020 [2020-10-28 09:36:59,846 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 09:36:59,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2020-10-28 09:36:59,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 990. [2020-10-28 09:36:59,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 990 states. [2020-10-28 09:36:59,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1543 transitions. [2020-10-28 09:36:59,925 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1543 transitions. Word has length 166 [2020-10-28 09:36:59,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:36:59,926 INFO L481 AbstractCegarLoop]: Abstraction has 990 states and 1543 transitions. [2020-10-28 09:36:59,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:36:59,926 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1543 transitions. [2020-10-28 09:36:59,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-28 09:36:59,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:36:59,931 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:36:59,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 09:36:59,931 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:36:59,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:36:59,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1690620172, now seen corresponding path program 1 times [2020-10-28 09:36:59,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:36:59,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412293606] [2020-10-28 09:36:59,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:36:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:36:59,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:36:59,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:00,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:00,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:00,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:00,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-28 09:37:00,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:37:00,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 633 [2020-10-28 09:37:00,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:00,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:00,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:00,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-28 09:37:00,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 09:37:00,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:00,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:00,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:00,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:00,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:00,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:00,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:37:00,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:00,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:00,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:00,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:00,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:00,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:00,729 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-28 09:37:00,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412293606] [2020-10-28 09:37:00,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:00,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:00,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110096400] [2020-10-28 09:37:00,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:00,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:00,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:00,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:00,738 INFO L87 Difference]: Start difference. First operand 990 states and 1543 transitions. Second operand 4 states. [2020-10-28 09:37:01,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:01,274 INFO L93 Difference]: Finished difference Result 2230 states and 3522 transitions. [2020-10-28 09:37:01,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:01,275 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2020-10-28 09:37:01,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:01,282 INFO L225 Difference]: With dead ends: 2230 [2020-10-28 09:37:01,282 INFO L226 Difference]: Without dead ends: 1200 [2020-10-28 09:37:01,285 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 09:37:01,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2020-10-28 09:37:01,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1176. [2020-10-28 09:37:01,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1176 states. [2020-10-28 09:37:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 1819 transitions. [2020-10-28 09:37:01,340 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 1819 transitions. Word has length 195 [2020-10-28 09:37:01,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:01,340 INFO L481 AbstractCegarLoop]: Abstraction has 1176 states and 1819 transitions. [2020-10-28 09:37:01,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:01,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 1819 transitions. [2020-10-28 09:37:01,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-28 09:37:01,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:01,346 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:01,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 09:37:01,346 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:01,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:01,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1485255326, now seen corresponding path program 1 times [2020-10-28 09:37:01,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:01,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530373224] [2020-10-28 09:37:01,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:01,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:01,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:01,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:01,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:02,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:02,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-28 09:37:02,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:37:02,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 882 [2020-10-28 09:37:02,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:02,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:02,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:02,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 09:37:02,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 09:37:02,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:02,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:02,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:02,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:02,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:02,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:02,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:37:02,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:02,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:02,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:02,392 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-10-28 09:37:02,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530373224] [2020-10-28 09:37:02,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:02,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:02,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630452639] [2020-10-28 09:37:02,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:02,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:02,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:02,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:02,399 INFO L87 Difference]: Start difference. First operand 1176 states and 1819 transitions. Second operand 4 states. [2020-10-28 09:37:02,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:02,939 INFO L93 Difference]: Finished difference Result 2656 states and 4170 transitions. [2020-10-28 09:37:02,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:02,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 215 [2020-10-28 09:37:02,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:02,948 INFO L225 Difference]: With dead ends: 2656 [2020-10-28 09:37:02,949 INFO L226 Difference]: Without dead ends: 1440 [2020-10-28 09:37:02,954 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 09:37:02,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2020-10-28 09:37:03,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1326. [2020-10-28 09:37:03,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1326 states. [2020-10-28 09:37:03,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 2071 transitions. [2020-10-28 09:37:03,012 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 2071 transitions. Word has length 215 [2020-10-28 09:37:03,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:03,013 INFO L481 AbstractCegarLoop]: Abstraction has 1326 states and 2071 transitions. [2020-10-28 09:37:03,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:03,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 2071 transitions. [2020-10-28 09:37:03,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-28 09:37:03,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:03,019 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:03,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 09:37:03,019 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:03,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:03,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1485078635, now seen corresponding path program 2 times [2020-10-28 09:37:03,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:03,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965942926] [2020-10-28 09:37:03,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:03,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:03,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:03,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:03,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:03,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:03,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:04,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:04,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-28 09:37:04,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 09:37:04,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1748 [2020-10-28 09:37:04,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:04,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 122 [2020-10-28 09:37:04,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 09:37:04,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:04,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:04,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:04,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:04,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:04,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:04,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:37:04,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:04,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:04,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:04,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:04,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:04,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:37:04,942 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-10-28 09:37:04,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965942926] [2020-10-28 09:37:04,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:04,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:04,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875294959] [2020-10-28 09:37:04,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:04,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:04,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:04,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:04,946 INFO L87 Difference]: Start difference. First operand 1326 states and 2071 transitions. Second operand 4 states. [2020-10-28 09:37:05,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:05,549 INFO L93 Difference]: Finished difference Result 2902 states and 4608 transitions. [2020-10-28 09:37:05,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:05,550 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 224 [2020-10-28 09:37:05,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:05,559 INFO L225 Difference]: With dead ends: 2902 [2020-10-28 09:37:05,559 INFO L226 Difference]: Without dead ends: 1590 [2020-10-28 09:37:05,562 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 09:37:05,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2020-10-28 09:37:05,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1572. [2020-10-28 09:37:05,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1572 states. [2020-10-28 09:37:05,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2365 transitions. [2020-10-28 09:37:05,631 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2365 transitions. Word has length 224 [2020-10-28 09:37:05,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:05,631 INFO L481 AbstractCegarLoop]: Abstraction has 1572 states and 2365 transitions. [2020-10-28 09:37:05,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:05,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2365 transitions. [2020-10-28 09:37:05,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-28 09:37:05,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:05,638 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:05,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 09:37:05,639 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:05,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:05,639 INFO L82 PathProgramCache]: Analyzing trace with hash -40936160, now seen corresponding path program 1 times [2020-10-28 09:37:05,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:05,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786254165] [2020-10-28 09:37:05,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:05,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:05,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:05,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:05,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:05,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:06,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:06,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:07,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:07,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:09,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:09,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:10,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:10,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-28 09:37:10,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-28 09:37:10,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 09:37:10,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:10,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:10,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:10,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202 [2020-10-28 09:37:10,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-28 09:37:10,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:10,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:10,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:10,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:10,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:10,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:10,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:37:10,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:10,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:10,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:10,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:10,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:10,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:10,806 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-10-28 09:37:10,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786254165] [2020-10-28 09:37:10,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:10,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:10,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223053852] [2020-10-28 09:37:10,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:10,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:10,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:10,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:10,809 INFO L87 Difference]: Start difference. First operand 1572 states and 2365 transitions. Second operand 4 states. [2020-10-28 09:37:11,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:11,424 INFO L93 Difference]: Finished difference Result 3388 states and 5160 transitions. [2020-10-28 09:37:11,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:11,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 266 [2020-10-28 09:37:11,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:11,436 INFO L225 Difference]: With dead ends: 3388 [2020-10-28 09:37:11,436 INFO L226 Difference]: Without dead ends: 1830 [2020-10-28 09:37:11,440 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 09:37:11,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2020-10-28 09:37:11,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1804. [2020-10-28 09:37:11,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1804 states. [2020-10-28 09:37:11,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2627 transitions. [2020-10-28 09:37:11,526 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2627 transitions. Word has length 266 [2020-10-28 09:37:11,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:11,526 INFO L481 AbstractCegarLoop]: Abstraction has 1804 states and 2627 transitions. [2020-10-28 09:37:11,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:11,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2627 transitions. [2020-10-28 09:37:11,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-10-28 09:37:11,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:11,533 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-28 09:37:11,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 09:37:11,534 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:11,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:11,534 INFO L82 PathProgramCache]: Analyzing trace with hash 521183598, now seen corresponding path program 1 times [2020-10-28 09:37:11,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:11,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368976156] [2020-10-28 09:37:11,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:11,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:11,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:11,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:11,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:11,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:11,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:11,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:11,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:15,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:15,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-28 09:37:15,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 09:37:15,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4418 [2020-10-28 09:37:15,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:15,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:15,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:15,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-28 09:37:15,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-28 09:37:15,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:16,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:16,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:16,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:16,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:16,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:16,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:37:16,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:16,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:16,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:16,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:16,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:16,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:16,116 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2020-10-28 09:37:16,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368976156] [2020-10-28 09:37:16,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:16,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:16,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245639103] [2020-10-28 09:37:16,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:16,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:16,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:16,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:16,119 INFO L87 Difference]: Start difference. First operand 1804 states and 2627 transitions. Second operand 4 states. [2020-10-28 09:37:16,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:16,657 INFO L93 Difference]: Finished difference Result 3773 states and 5496 transitions. [2020-10-28 09:37:16,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:16,657 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 277 [2020-10-28 09:37:16,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:16,668 INFO L225 Difference]: With dead ends: 3773 [2020-10-28 09:37:16,668 INFO L226 Difference]: Without dead ends: 1937 [2020-10-28 09:37:16,673 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 09:37:16,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2020-10-28 09:37:16,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1919. [2020-10-28 09:37:16,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1919 states. [2020-10-28 09:37:16,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1919 states to 1919 states and 2647 transitions. [2020-10-28 09:37:16,754 INFO L78 Accepts]: Start accepts. Automaton has 1919 states and 2647 transitions. Word has length 277 [2020-10-28 09:37:16,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:16,754 INFO L481 AbstractCegarLoop]: Abstraction has 1919 states and 2647 transitions. [2020-10-28 09:37:16,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:16,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1919 states and 2647 transitions. [2020-10-28 09:37:16,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-10-28 09:37:16,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:16,762 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-28 09:37:16,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 09:37:16,762 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:16,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:16,763 INFO L82 PathProgramCache]: Analyzing trace with hash -129171891, now seen corresponding path program 1 times [2020-10-28 09:37:16,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:16,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615134493] [2020-10-28 09:37:16,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:16,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:16,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:16,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:16,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:16,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:17,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:17,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:17,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-28 09:37:17,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 09:37:17,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 972 [2020-10-28 09:37:17,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:17,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:17,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:17,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-28 09:37:17,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 09:37:17,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:37:17,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:17,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:17,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:17,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:17,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:17,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 09:37:17,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:17,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:17,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:17,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:17,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:17,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:17,941 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-28 09:37:17,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615134493] [2020-10-28 09:37:17,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:17,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:17,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880647379] [2020-10-28 09:37:17,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:17,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:17,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:17,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:17,944 INFO L87 Difference]: Start difference. First operand 1919 states and 2647 transitions. Second operand 4 states. [2020-10-28 09:37:18,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:18,440 INFO L93 Difference]: Finished difference Result 4112 states and 5718 transitions. [2020-10-28 09:37:18,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:18,441 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 294 [2020-10-28 09:37:18,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:18,452 INFO L225 Difference]: With dead ends: 4112 [2020-10-28 09:37:18,452 INFO L226 Difference]: Without dead ends: 2129 [2020-10-28 09:37:18,457 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 09:37:18,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2129 states. [2020-10-28 09:37:18,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2129 to 2081. [2020-10-28 09:37:18,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2081 states. [2020-10-28 09:37:18,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 2863 transitions. [2020-10-28 09:37:18,537 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 2863 transitions. Word has length 294 [2020-10-28 09:37:18,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:18,538 INFO L481 AbstractCegarLoop]: Abstraction has 2081 states and 2863 transitions. [2020-10-28 09:37:18,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:18,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 2863 transitions. [2020-10-28 09:37:18,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-10-28 09:37:18,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:18,546 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-28 09:37:18,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 09:37:18,546 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:18,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:18,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1978751186, now seen corresponding path program 1 times [2020-10-28 09:37:18,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:18,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506427170] [2020-10-28 09:37:18,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:18,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:18,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:18,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:18,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:18,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:18,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:19,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:19,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 327 [2020-10-28 09:37:19,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 09:37:19,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 818 [2020-10-28 09:37:19,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:19,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-28 09:37:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 09:37:19,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:19,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:19,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:19,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:19,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:19,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:19,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:37:19,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:19,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:19,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:19,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:19,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:19,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:19,542 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 592 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2020-10-28 09:37:19,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506427170] [2020-10-28 09:37:19,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:19,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:19,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872186113] [2020-10-28 09:37:19,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:19,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:19,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:19,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:19,544 INFO L87 Difference]: Start difference. First operand 2081 states and 2863 transitions. Second operand 4 states. [2020-10-28 09:37:20,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:20,010 INFO L93 Difference]: Finished difference Result 4406 states and 6090 transitions. [2020-10-28 09:37:20,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:20,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 317 [2020-10-28 09:37:20,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:20,022 INFO L225 Difference]: With dead ends: 4406 [2020-10-28 09:37:20,022 INFO L226 Difference]: Without dead ends: 2273 [2020-10-28 09:37:20,027 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 09:37:20,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2020-10-28 09:37:20,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2255. [2020-10-28 09:37:20,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2255 states. [2020-10-28 09:37:20,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3103 transitions. [2020-10-28 09:37:20,103 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3103 transitions. Word has length 317 [2020-10-28 09:37:20,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:20,104 INFO L481 AbstractCegarLoop]: Abstraction has 2255 states and 3103 transitions. [2020-10-28 09:37:20,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:20,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3103 transitions. [2020-10-28 09:37:20,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-10-28 09:37:20,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:20,113 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-28 09:37:20,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 09:37:20,113 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:20,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:20,114 INFO L82 PathProgramCache]: Analyzing trace with hash -560943749, now seen corresponding path program 1 times [2020-10-28 09:37:20,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:20,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366358377] [2020-10-28 09:37:20,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:20,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:20,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:20,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:20,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:20,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:20,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:20,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:21,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:21,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:21,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:24,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:24,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 360 [2020-10-28 09:37:24,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-28 09:37:24,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4442 [2020-10-28 09:37:24,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:24,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:24,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:37:24,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-28 09:37:24,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-28 09:37:24,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:24,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:24,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:24,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:24,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:24,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:24,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:37:24,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:24,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:24,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:24,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:24,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:24,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:24,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 800 proven. 90 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-28 09:37:24,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366358377] [2020-10-28 09:37:24,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:37:24,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 09:37:24,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093952640] [2020-10-28 09:37:24,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:37:24,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:24,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:37:24,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:37:24,751 INFO L87 Difference]: Start difference. First operand 2255 states and 3103 transitions. Second operand 5 states. [2020-10-28 09:37:25,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:25,870 INFO L93 Difference]: Finished difference Result 5786 states and 7952 transitions. [2020-10-28 09:37:25,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 09:37:25,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 350 [2020-10-28 09:37:25,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:25,888 INFO L225 Difference]: With dead ends: 5786 [2020-10-28 09:37:25,889 INFO L226 Difference]: Without dead ends: 3479 [2020-10-28 09:37:25,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-28 09:37:25,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2020-10-28 09:37:26,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 2820. [2020-10-28 09:37:26,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2820 states. [2020-10-28 09:37:26,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2820 states to 2820 states and 3866 transitions. [2020-10-28 09:37:26,007 INFO L78 Accepts]: Start accepts. Automaton has 2820 states and 3866 transitions. Word has length 350 [2020-10-28 09:37:26,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:26,008 INFO L481 AbstractCegarLoop]: Abstraction has 2820 states and 3866 transitions. [2020-10-28 09:37:26,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:37:26,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2820 states and 3866 transitions. [2020-10-28 09:37:26,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2020-10-28 09:37:26,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:26,021 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 6, 4, 4, 4, 4, 4, 4, 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] [2020-10-28 09:37:26,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 09:37:26,021 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:26,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:26,022 INFO L82 PathProgramCache]: Analyzing trace with hash -882793505, now seen corresponding path program 1 times [2020-10-28 09:37:26,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:26,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606474166] [2020-10-28 09:37:26,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:26,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:26,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:26,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:26,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:26,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:26,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:26,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:26,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:27,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:27,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 422 [2020-10-28 09:37:27,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 09:37:27,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1877 [2020-10-28 09:37:27,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:27,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:27,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:27,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-10-28 09:37:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 09:37:27,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:28,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:28,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:28,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:28,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:28,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:28,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:37:28,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:28,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:28,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:28,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:28,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:28,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:28,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1704 backedges. 1040 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2020-10-28 09:37:28,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606474166] [2020-10-28 09:37:28,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:28,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:28,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317778845] [2020-10-28 09:37:28,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:28,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:28,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:28,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:28,191 INFO L87 Difference]: Start difference. First operand 2820 states and 3866 transitions. Second operand 4 states. [2020-10-28 09:37:28,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:28,727 INFO L93 Difference]: Finished difference Result 6013 states and 8286 transitions. [2020-10-28 09:37:28,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:28,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 412 [2020-10-28 09:37:28,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:28,744 INFO L225 Difference]: With dead ends: 6013 [2020-10-28 09:37:28,744 INFO L226 Difference]: Without dead ends: 3153 [2020-10-28 09:37:28,751 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 09:37:28,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3153 states. [2020-10-28 09:37:28,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3153 to 3126. [2020-10-28 09:37:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3126 states. [2020-10-28 09:37:28,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 4307 transitions. [2020-10-28 09:37:28,866 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 4307 transitions. Word has length 412 [2020-10-28 09:37:28,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:28,867 INFO L481 AbstractCegarLoop]: Abstraction has 3126 states and 4307 transitions. [2020-10-28 09:37:28,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:28,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 4307 transitions. [2020-10-28 09:37:28,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2020-10-28 09:37:28,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:28,875 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 8, 6, 6, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:28,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 09:37:28,876 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:28,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:28,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1428327803, now seen corresponding path program 1 times [2020-10-28 09:37:28,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:28,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207827575] [2020-10-28 09:37:28,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:28,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:28,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:28,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:29,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:29,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:29,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:29,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:29,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:30,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:30,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 484 [2020-10-28 09:37:30,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 09:37:30,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1529 [2020-10-28 09:37:30,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:30,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:30,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:30,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 218 [2020-10-28 09:37:30,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 09:37:30,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:30,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:30,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:30,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:30,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:30,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:30,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:37:30,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:30,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:30,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:30,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:30,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:30,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:30,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2363 backedges. 1414 proven. 0 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2020-10-28 09:37:30,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207827575] [2020-10-28 09:37:30,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:30,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:30,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720886231] [2020-10-28 09:37:30,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:30,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:30,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:30,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:30,660 INFO L87 Difference]: Start difference. First operand 3126 states and 4307 transitions. Second operand 4 states. [2020-10-28 09:37:31,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:31,179 INFO L93 Difference]: Finished difference Result 6625 states and 9168 transitions. [2020-10-28 09:37:31,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:31,180 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 474 [2020-10-28 09:37:31,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:31,199 INFO L225 Difference]: With dead ends: 6625 [2020-10-28 09:37:31,200 INFO L226 Difference]: Without dead ends: 3477 [2020-10-28 09:37:31,207 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 09:37:31,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3477 states. [2020-10-28 09:37:31,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3477 to 3450. [2020-10-28 09:37:31,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3450 states. [2020-10-28 09:37:31,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3450 states to 3450 states and 4784 transitions. [2020-10-28 09:37:31,325 INFO L78 Accepts]: Start accepts. Automaton has 3450 states and 4784 transitions. Word has length 474 [2020-10-28 09:37:31,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:31,326 INFO L481 AbstractCegarLoop]: Abstraction has 3450 states and 4784 transitions. [2020-10-28 09:37:31,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:31,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3450 states and 4784 transitions. [2020-10-28 09:37:31,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2020-10-28 09:37:31,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:31,335 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:31,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 09:37:31,335 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:31,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:31,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1554549441, now seen corresponding path program 1 times [2020-10-28 09:37:31,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:31,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269764546] [2020-10-28 09:37:31,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:31,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:31,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:31,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:31,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:31,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:31,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:32,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:32,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 550 [2020-10-28 09:37:32,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 09:37:32,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-10-28 09:37:32,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:32,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:32,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:32,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-10-28 09:37:32,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 09:37:32,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:32,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:32,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:32,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:32,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:32,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:32,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:37:32,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:32,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:32,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:32,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:32,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:32,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:32,619 INFO L134 CoverageAnalysis]: Checked inductivity of 3156 backedges. 1858 proven. 0 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2020-10-28 09:37:32,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [269764546] [2020-10-28 09:37:32,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:32,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:32,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771521112] [2020-10-28 09:37:32,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:32,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:32,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:32,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:32,621 INFO L87 Difference]: Start difference. First operand 3450 states and 4784 transitions. Second operand 4 states. [2020-10-28 09:37:33,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:33,171 INFO L93 Difference]: Finished difference Result 6916 states and 9580 transitions. [2020-10-28 09:37:33,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:33,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 540 [2020-10-28 09:37:33,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:33,195 INFO L225 Difference]: With dead ends: 6916 [2020-10-28 09:37:33,196 INFO L226 Difference]: Without dead ends: 3460 [2020-10-28 09:37:33,203 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 09:37:33,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2020-10-28 09:37:33,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3443. [2020-10-28 09:37:33,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3443 states. [2020-10-28 09:37:33,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3443 states to 3443 states and 4761 transitions. [2020-10-28 09:37:33,311 INFO L78 Accepts]: Start accepts. Automaton has 3443 states and 4761 transitions. Word has length 540 [2020-10-28 09:37:33,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:33,312 INFO L481 AbstractCegarLoop]: Abstraction has 3443 states and 4761 transitions. [2020-10-28 09:37:33,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:33,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3443 states and 4761 transitions. [2020-10-28 09:37:33,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2020-10-28 09:37:33,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:33,321 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 11, 9, 9, 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, 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 09:37:33,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 09:37:33,321 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:33,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:33,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1032408775, now seen corresponding path program 1 times [2020-10-28 09:37:33,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:33,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324907213] [2020-10-28 09:37:33,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:33,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:33,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:33,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:33,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:33,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:33,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 588 [2020-10-28 09:37:33,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:37:33,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-28 09:37:33,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:33,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:33,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:33,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 342 [2020-10-28 09:37:33,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-28 09:37:33,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:33,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:33,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:33,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:33,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:33,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:33,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:37:33,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:33,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:33,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:34,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3611 backedges. 2023 proven. 0 refuted. 0 times theorem prover too weak. 1588 trivial. 0 not checked. [2020-10-28 09:37:34,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324907213] [2020-10-28 09:37:34,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:34,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:34,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032627904] [2020-10-28 09:37:34,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:34,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:34,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:34,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:34,144 INFO L87 Difference]: Start difference. First operand 3443 states and 4761 transitions. Second operand 4 states. [2020-10-28 09:37:34,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:34,685 INFO L93 Difference]: Finished difference Result 6888 states and 9534 transitions. [2020-10-28 09:37:34,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:34,685 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 578 [2020-10-28 09:37:34,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:34,694 INFO L225 Difference]: With dead ends: 6888 [2020-10-28 09:37:34,695 INFO L226 Difference]: Without dead ends: 3387 [2020-10-28 09:37:34,705 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 09:37:34,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3387 states. [2020-10-28 09:37:34,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3387 to 3319. [2020-10-28 09:37:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3319 states. [2020-10-28 09:37:34,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3319 states to 3319 states and 4576 transitions. [2020-10-28 09:37:34,810 INFO L78 Accepts]: Start accepts. Automaton has 3319 states and 4576 transitions. Word has length 578 [2020-10-28 09:37:34,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:34,811 INFO L481 AbstractCegarLoop]: Abstraction has 3319 states and 4576 transitions. [2020-10-28 09:37:34,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:34,811 INFO L276 IsEmpty]: Start isEmpty. Operand 3319 states and 4576 transitions. [2020-10-28 09:37:34,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2020-10-28 09:37:34,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:34,820 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 11, 9, 9, 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, 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 09:37:34,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 09:37:34,821 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:34,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:34,821 INFO L82 PathProgramCache]: Analyzing trace with hash 268281969, now seen corresponding path program 1 times [2020-10-28 09:37:34,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:34,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16286500] [2020-10-28 09:37:34,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:34,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:34,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:34,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:34,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:35,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:35,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 589 [2020-10-28 09:37:35,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:37:35,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 692 [2020-10-28 09:37:35,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:35,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:35,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:35,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-28 09:37:35,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-28 09:37:35,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:35,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:35,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:35,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:35,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:35,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:35,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:37:35,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:35,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:35,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:35,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:35,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:35,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:35,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3611 backedges. 2023 proven. 0 refuted. 0 times theorem prover too weak. 1588 trivial. 0 not checked. [2020-10-28 09:37:35,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16286500] [2020-10-28 09:37:35,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:35,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:35,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161035243] [2020-10-28 09:37:35,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:35,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:35,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:35,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:35,766 INFO L87 Difference]: Start difference. First operand 3319 states and 4576 transitions. Second operand 4 states. [2020-10-28 09:37:36,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:36,294 INFO L93 Difference]: Finished difference Result 6853 states and 9470 transitions. [2020-10-28 09:37:36,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:36,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 579 [2020-10-28 09:37:36,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:36,302 INFO L225 Difference]: With dead ends: 6853 [2020-10-28 09:37:36,302 INFO L226 Difference]: Without dead ends: 3484 [2020-10-28 09:37:36,309 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 09:37:36,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2020-10-28 09:37:36,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 2990. [2020-10-28 09:37:36,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2990 states. [2020-10-28 09:37:36,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 4144 transitions. [2020-10-28 09:37:36,471 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 4144 transitions. Word has length 579 [2020-10-28 09:37:36,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:36,472 INFO L481 AbstractCegarLoop]: Abstraction has 2990 states and 4144 transitions. [2020-10-28 09:37:36,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:36,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 4144 transitions. [2020-10-28 09:37:36,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 591 [2020-10-28 09:37:36,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:36,480 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 11, 9, 9, 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, 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] [2020-10-28 09:37:36,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 09:37:36,480 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:36,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:36,481 INFO L82 PathProgramCache]: Analyzing trace with hash -150253391, now seen corresponding path program 1 times [2020-10-28 09:37:36,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:36,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682786701] [2020-10-28 09:37:36,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:36,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:36,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:36,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:36,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:37,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:37,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 600 [2020-10-28 09:37:37,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:37:37,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1043 [2020-10-28 09:37:37,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:37,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:37,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:37:37,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-28 09:37:37,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-28 09:37:37,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:37,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:37,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:37,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:37,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:37,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:37,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:37:37,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:37,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:37,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:37,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:37,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:37,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:37,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3794 backedges. 2202 proven. 26 refuted. 0 times theorem prover too weak. 1566 trivial. 0 not checked. [2020-10-28 09:37:37,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682786701] [2020-10-28 09:37:37,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:37:37,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 09:37:37,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292061790] [2020-10-28 09:37:37,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:37:37,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:37,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:37:37,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:37:37,840 INFO L87 Difference]: Start difference. First operand 2990 states and 4144 transitions. Second operand 5 states. [2020-10-28 09:37:39,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:39,053 INFO L93 Difference]: Finished difference Result 7721 states and 10721 transitions. [2020-10-28 09:37:39,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 09:37:39,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 590 [2020-10-28 09:37:39,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:39,067 INFO L225 Difference]: With dead ends: 7721 [2020-10-28 09:37:39,067 INFO L226 Difference]: Without dead ends: 4720 [2020-10-28 09:37:39,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-28 09:37:39,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4720 states. [2020-10-28 09:37:39,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4720 to 3296. [2020-10-28 09:37:39,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3296 states. [2020-10-28 09:37:39,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3296 states to 3296 states and 4537 transitions. [2020-10-28 09:37:39,197 INFO L78 Accepts]: Start accepts. Automaton has 3296 states and 4537 transitions. Word has length 590 [2020-10-28 09:37:39,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:39,198 INFO L481 AbstractCegarLoop]: Abstraction has 3296 states and 4537 transitions. [2020-10-28 09:37:39,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:37:39,198 INFO L276 IsEmpty]: Start isEmpty. Operand 3296 states and 4537 transitions. [2020-10-28 09:37:39,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2020-10-28 09:37:39,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:39,208 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 19, 19, 17, 17, 15, 15, 13, 13, 13, 13, 11, 9, 9, 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, 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] [2020-10-28 09:37:39,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-28 09:37:39,208 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:39,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:39,209 INFO L82 PathProgramCache]: Analyzing trace with hash 819329587, now seen corresponding path program 1 times [2020-10-28 09:37:39,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:39,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1004906547] [2020-10-28 09:37:39,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:39,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:39,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:39,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:39,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:39,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:39,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 678 [2020-10-28 09:37:39,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:37:39,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 712 [2020-10-28 09:37:39,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:39,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:39,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:39,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-28 09:37:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 09:37:39,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:40,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:40,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:40,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:40,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:40,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:40,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:37:40,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:40,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:40,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:40,266 INFO L134 CoverageAnalysis]: Checked inductivity of 5007 backedges. 2800 proven. 0 refuted. 0 times theorem prover too weak. 2207 trivial. 0 not checked. [2020-10-28 09:37:40,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1004906547] [2020-10-28 09:37:40,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:40,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:40,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67208701] [2020-10-28 09:37:40,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:40,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:40,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:40,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:40,268 INFO L87 Difference]: Start difference. First operand 3296 states and 4537 transitions. Second operand 4 states. [2020-10-28 09:37:40,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:40,909 INFO L93 Difference]: Finished difference Result 6754 states and 9272 transitions. [2020-10-28 09:37:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:40,910 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 668 [2020-10-28 09:37:40,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:40,917 INFO L225 Difference]: With dead ends: 6754 [2020-10-28 09:37:40,918 INFO L226 Difference]: Without dead ends: 3505 [2020-10-28 09:37:40,923 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 09:37:40,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3505 states. [2020-10-28 09:37:41,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3505 to 3289. [2020-10-28 09:37:41,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3289 states. [2020-10-28 09:37:41,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3289 states to 3289 states and 4518 transitions. [2020-10-28 09:37:41,030 INFO L78 Accepts]: Start accepts. Automaton has 3289 states and 4518 transitions. Word has length 668 [2020-10-28 09:37:41,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:41,031 INFO L481 AbstractCegarLoop]: Abstraction has 3289 states and 4518 transitions. [2020-10-28 09:37:41,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:41,031 INFO L276 IsEmpty]: Start isEmpty. Operand 3289 states and 4518 transitions. [2020-10-28 09:37:41,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2020-10-28 09:37:41,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:41,041 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 21, 21, 21, 19, 19, 17, 17, 15, 15, 13, 13, 13, 13, 11, 9, 9, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:41,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-28 09:37:41,042 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:41,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:41,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1249191225, now seen corresponding path program 1 times [2020-10-28 09:37:41,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:41,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701582266] [2020-10-28 09:37:41,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:41,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:41,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:41,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:41,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 699 [2020-10-28 09:37:41,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:37:41,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-28 09:37:41,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:41,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 334 [2020-10-28 09:37:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 09:37:41,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:41,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:41,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:41,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:41,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:41,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:41,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:37:41,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:41,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:41,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:41,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:41,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:41,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:41,755 INFO L134 CoverageAnalysis]: Checked inductivity of 5361 backedges. 2838 proven. 0 refuted. 0 times theorem prover too weak. 2523 trivial. 0 not checked. [2020-10-28 09:37:41,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701582266] [2020-10-28 09:37:41,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:41,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:41,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736539334] [2020-10-28 09:37:41,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:41,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:41,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:41,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:41,757 INFO L87 Difference]: Start difference. First operand 3289 states and 4518 transitions. Second operand 4 states. [2020-10-28 09:37:42,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:42,250 INFO L93 Difference]: Finished difference Result 6567 states and 9002 transitions. [2020-10-28 09:37:42,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:42,251 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 689 [2020-10-28 09:37:42,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:42,258 INFO L225 Difference]: With dead ends: 6567 [2020-10-28 09:37:42,259 INFO L226 Difference]: Without dead ends: 3337 [2020-10-28 09:37:42,265 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 09:37:42,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3337 states. [2020-10-28 09:37:42,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3337 to 3337. [2020-10-28 09:37:42,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3337 states. [2020-10-28 09:37:42,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3337 states to 3337 states and 4578 transitions. [2020-10-28 09:37:42,367 INFO L78 Accepts]: Start accepts. Automaton has 3337 states and 4578 transitions. Word has length 689 [2020-10-28 09:37:42,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:42,368 INFO L481 AbstractCegarLoop]: Abstraction has 3337 states and 4578 transitions. [2020-10-28 09:37:42,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:42,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3337 states and 4578 transitions. [2020-10-28 09:37:42,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2020-10-28 09:37:42,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:42,378 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 23, 23, 21, 21, 21, 19, 19, 17, 17, 15, 15, 13, 13, 13, 13, 11, 9, 9, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:42,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-28 09:37:42,378 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:42,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:42,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1828032947, now seen corresponding path program 1 times [2020-10-28 09:37:42,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:42,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682278046] [2020-10-28 09:37:42,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:42,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:42,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:42,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 699 [2020-10-28 09:37:42,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:42,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-28 09:37:42,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:42,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 328 [2020-10-28 09:37:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 09:37:42,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:42,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:42,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:42,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:42,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:42,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:42,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:37:42,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:42,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:42,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:42,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:42,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:42,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 5384 backedges. 2914 proven. 0 refuted. 0 times theorem prover too weak. 2470 trivial. 0 not checked. [2020-10-28 09:37:42,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682278046] [2020-10-28 09:37:42,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:42,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:42,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683033818] [2020-10-28 09:37:42,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:42,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:42,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:42,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:42,906 INFO L87 Difference]: Start difference. First operand 3337 states and 4578 transitions. Second operand 4 states. [2020-10-28 09:37:43,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:43,398 INFO L93 Difference]: Finished difference Result 6684 states and 9157 transitions. [2020-10-28 09:37:43,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:43,399 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 689 [2020-10-28 09:37:43,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:43,407 INFO L225 Difference]: With dead ends: 6684 [2020-10-28 09:37:43,407 INFO L226 Difference]: Without dead ends: 3400 [2020-10-28 09:37:43,413 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 09:37:43,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2020-10-28 09:37:43,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 3203. [2020-10-28 09:37:43,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3203 states. [2020-10-28 09:37:43,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 4378 transitions. [2020-10-28 09:37:43,523 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 4378 transitions. Word has length 689 [2020-10-28 09:37:43,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:43,524 INFO L481 AbstractCegarLoop]: Abstraction has 3203 states and 4378 transitions. [2020-10-28 09:37:43,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:43,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 4378 transitions. [2020-10-28 09:37:43,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2020-10-28 09:37:43,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:43,537 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 22, 22, 22, 20, 20, 18, 18, 16, 16, 14, 14, 14, 14, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 09:37:43,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-28 09:37:43,538 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:43,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:43,538 INFO L82 PathProgramCache]: Analyzing trace with hash 234889655, now seen corresponding path program 1 times [2020-10-28 09:37:43,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:43,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [523074624] [2020-10-28 09:37:43,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:43,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:43,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:43,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 728 [2020-10-28 09:37:43,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:43,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-28 09:37:43,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:43,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 370 [2020-10-28 09:37:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 09:37:43,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:43,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:43,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:43,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:43,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:43,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:43,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:37:43,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:43,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:43,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:43,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:43,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:43,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:44,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5825 backedges. 3230 proven. 0 refuted. 0 times theorem prover too weak. 2595 trivial. 0 not checked. [2020-10-28 09:37:44,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [523074624] [2020-10-28 09:37:44,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:44,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:44,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778207949] [2020-10-28 09:37:44,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:44,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:44,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:44,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:44,158 INFO L87 Difference]: Start difference. First operand 3203 states and 4378 transitions. Second operand 4 states. [2020-10-28 09:37:44,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:44,774 INFO L93 Difference]: Finished difference Result 6500 states and 8869 transitions. [2020-10-28 09:37:44,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:44,775 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 718 [2020-10-28 09:37:44,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:44,783 INFO L225 Difference]: With dead ends: 6500 [2020-10-28 09:37:44,783 INFO L226 Difference]: Without dead ends: 3391 [2020-10-28 09:37:44,790 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 09:37:44,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3391 states. [2020-10-28 09:37:44,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3391 to 3323. [2020-10-28 09:37:44,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3323 states. [2020-10-28 09:37:44,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3323 states to 3323 states and 4505 transitions. [2020-10-28 09:37:44,931 INFO L78 Accepts]: Start accepts. Automaton has 3323 states and 4505 transitions. Word has length 718 [2020-10-28 09:37:44,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:44,931 INFO L481 AbstractCegarLoop]: Abstraction has 3323 states and 4505 transitions. [2020-10-28 09:37:44,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand 3323 states and 4505 transitions. [2020-10-28 09:37:44,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2020-10-28 09:37:44,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:44,943 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 24, 22, 22, 22, 20, 20, 18, 18, 16, 16, 14, 14, 14, 14, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:37:44,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-28 09:37:44,943 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:44,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:44,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1876383855, now seen corresponding path program 1 times [2020-10-28 09:37:44,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:44,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502672331] [2020-10-28 09:37:44,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:45,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:45,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:45,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 743 [2020-10-28 09:37:45,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:45,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-28 09:37:45,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:45,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:45,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:45,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 370 [2020-10-28 09:37:45,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 09:37:45,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:45,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:45,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:45,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:45,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:45,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:45,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 09:37:45,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:45,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:45,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:45,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:45,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:45,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:45,613 INFO L134 CoverageAnalysis]: Checked inductivity of 5991 backedges. 3253 proven. 0 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2020-10-28 09:37:45,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502672331] [2020-10-28 09:37:45,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:45,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:45,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037270882] [2020-10-28 09:37:45,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:45,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:45,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:45,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:45,616 INFO L87 Difference]: Start difference. First operand 3323 states and 4505 transitions. Second operand 4 states. [2020-10-28 09:37:46,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:46,095 INFO L93 Difference]: Finished difference Result 6620 states and 8931 transitions. [2020-10-28 09:37:46,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:46,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 733 [2020-10-28 09:37:46,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:46,103 INFO L225 Difference]: With dead ends: 6620 [2020-10-28 09:37:46,103 INFO L226 Difference]: Without dead ends: 3391 [2020-10-28 09:37:46,110 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 09:37:46,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3391 states. [2020-10-28 09:37:46,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3391 to 3323. [2020-10-28 09:37:46,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3323 states. [2020-10-28 09:37:46,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3323 states to 3323 states and 4479 transitions. [2020-10-28 09:37:46,219 INFO L78 Accepts]: Start accepts. Automaton has 3323 states and 4479 transitions. Word has length 733 [2020-10-28 09:37:46,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:46,220 INFO L481 AbstractCegarLoop]: Abstraction has 3323 states and 4479 transitions. [2020-10-28 09:37:46,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:46,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3323 states and 4479 transitions. [2020-10-28 09:37:46,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 748 [2020-10-28 09:37:46,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:46,230 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 24, 24, 23, 23, 23, 21, 21, 19, 19, 17, 17, 15, 15, 15, 15, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 09:37:46,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-28 09:37:46,231 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:46,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:46,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1262166036, now seen corresponding path program 2 times [2020-10-28 09:37:46,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:46,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704250147] [2020-10-28 09:37:46,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:46,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:46,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:46,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 757 [2020-10-28 09:37:46,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:46,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-28 09:37:46,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:46,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:46,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:37:46,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 371 [2020-10-28 09:37:46,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 09:37:46,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:46,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:46,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:46,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:46,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:46,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:46,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 09:37:46,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:46,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:46,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:46,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:46,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:46,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 6371 backedges. 3763 proven. 13 refuted. 0 times theorem prover too weak. 2595 trivial. 0 not checked. [2020-10-28 09:37:47,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704250147] [2020-10-28 09:37:47,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:37:47,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 09:37:47,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892017542] [2020-10-28 09:37:47,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:37:47,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:47,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:37:47,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:37:47,106 INFO L87 Difference]: Start difference. First operand 3323 states and 4479 transitions. Second operand 5 states. [2020-10-28 09:37:47,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:47,903 INFO L93 Difference]: Finished difference Result 5209 states and 6967 transitions. [2020-10-28 09:37:47,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 09:37:47,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 747 [2020-10-28 09:37:47,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:47,905 INFO L225 Difference]: With dead ends: 5209 [2020-10-28 09:37:47,905 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 09:37:47,913 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 09:37:47,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 09:37:47,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 09:37:47,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 09:37:47,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 09:37:47,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 747 [2020-10-28 09:37:47,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:47,914 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 09:37:47,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:37:47,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 09:37:47,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 09:37:47,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-28 09:37:47,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 09:37:48,069 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2020-10-28 09:37:48,259 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2020-10-28 09:37:48,552 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2020-10-28 09:37:48,721 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2020-10-28 09:37:48,946 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2020-10-28 09:37:49,057 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2020-10-28 09:37:49,678 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 117 [2020-10-28 09:37:50,134 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 117 [2020-10-28 09:37:50,329 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 17 [2020-10-28 09:37:50,508 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 22 [2020-10-28 09:37:50,643 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 17 [2020-10-28 09:37:50,781 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 22 [2020-10-28 09:37:50,979 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 22 [2020-10-28 09:37:51,272 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 23 [2020-10-28 09:37:51,399 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 17 [2020-10-28 09:37:51,553 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 17 [2020-10-28 09:37:51,699 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 21 [2020-10-28 09:37:51,947 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 23 [2020-10-28 09:37:52,070 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 17 [2020-10-28 09:37:52,274 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 23 [2020-10-28 09:37:52,925 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 46 [2020-10-28 09:37:53,104 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 22 [2020-10-28 09:37:53,242 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 17 [2020-10-28 09:37:53,470 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 23 [2020-10-28 09:37:53,628 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 23 [2020-10-28 09:37:54,236 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 46 [2020-10-28 09:37:54,588 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 22 [2020-10-28 09:37:54,594 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-28 09:37:54,595 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-28 09:37:54,595 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-28 09:37:54,595 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-28 09:37:54,595 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 09:37:54,595 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 09:37:54,595 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 09:37:54,595 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 09:37:54,596 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-28 09:37:54,596 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 09:37:54,596 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 09:37:54,596 INFO L277 CegarLoopResult]: At program point L688(line 688) the Hoare annotation is: true [2020-10-28 09:37:54,596 INFO L274 CegarLoopResult]: For program point L688-1(line 688) no Hoare annotation was computed. [2020-10-28 09:37:54,596 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 681 692) the Hoare annotation is: true [2020-10-28 09:37:54,596 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 681 692) no Hoare annotation was computed. [2020-10-28 09:37:54,596 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 681 692) no Hoare annotation was computed. [2020-10-28 09:37:54,596 INFO L270 CegarLoopResult]: At program point L168(lines 167 609) the Hoare annotation is: (let ((.cse0 (<= 8448 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8448)) (.cse2 (<= ssl3_accept_~blastFlag~0 3))) (or (and .cse0 (<= ssl3_accept_~blastFlag~0 2) .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (and (not (= ssl3_accept_~s__hit~0 0)) .cse2) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 0)) (and .cse0 .cse1 .cse2 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3)))) [2020-10-28 09:37:54,597 INFO L270 CegarLoopResult]: At program point L135(lines 128 622) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8482)) (.cse1 (<= 8464 ssl3_accept_~s__state~0))) (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 0)) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)))) [2020-10-28 09:37:54,597 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 09:37:54,597 INFO L274 CegarLoopResult]: For program point L631(lines 631 659) no Hoare annotation was computed. [2020-10-28 09:37:54,597 INFO L274 CegarLoopResult]: For program point L466(lines 466 470) no Hoare annotation was computed. [2020-10-28 09:37:54,597 INFO L274 CegarLoopResult]: For program point L632(lines 632 656) no Hoare annotation was computed. [2020-10-28 09:37:54,597 INFO L274 CegarLoopResult]: For program point L566(lines 566 570) no Hoare annotation was computed. [2020-10-28 09:37:54,597 INFO L274 CegarLoopResult]: For program point L500(lines 500 504) no Hoare annotation was computed. [2020-10-28 09:37:54,597 INFO L274 CegarLoopResult]: For program point L566-2(lines 566 570) no Hoare annotation was computed. [2020-10-28 09:37:54,597 INFO L274 CegarLoopResult]: For program point L500-2(lines 211 592) no Hoare annotation was computed. [2020-10-28 09:37:54,597 INFO L274 CegarLoopResult]: For program point L203(lines 203 597) no Hoare annotation was computed. [2020-10-28 09:37:54,598 INFO L274 CegarLoopResult]: For program point L170(lines 170 608) no Hoare annotation was computed. [2020-10-28 09:37:54,598 INFO L274 CegarLoopResult]: For program point L137(lines 137 619) no Hoare annotation was computed. [2020-10-28 09:37:54,598 INFO L274 CegarLoopResult]: For program point L104(lines 104 630) no Hoare annotation was computed. [2020-10-28 09:37:54,598 INFO L274 CegarLoopResult]: For program point L666(lines 666 670) no Hoare annotation was computed. [2020-10-28 09:37:54,598 INFO L274 CegarLoopResult]: For program point L633(lines 633 642) no Hoare annotation was computed. [2020-10-28 09:37:54,598 INFO L274 CegarLoopResult]: For program point L666-2(lines 666 670) no Hoare annotation was computed. [2020-10-28 09:37:54,598 INFO L274 CegarLoopResult]: For program point L633-2(lines 632 654) no Hoare annotation was computed. [2020-10-28 09:37:54,598 INFO L274 CegarLoopResult]: For program point L270(lines 270 274) no Hoare annotation was computed. [2020-10-28 09:37:54,598 INFO L270 CegarLoopResult]: At program point L204(lines 200 598) the Hoare annotation is: (let ((.cse2 (<= ssl3_accept_~s__state~0 8672)) (.cse1 (<= ssl3_accept_~blastFlag~0 3)) (.cse0 (<= 8672 ssl3_accept_~s__state~0))) (or (and (<= ssl3_accept_~blastFlag~0 0) .cse0) (and (not (= ssl3_accept_~s__hit~0 0)) .cse1) (and (<= ssl3_accept_~blastFlag~0 1) .cse2 .cse0) (and .cse2 .cse1 .cse0 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)))) [2020-10-28 09:37:54,599 INFO L270 CegarLoopResult]: At program point L105(lines 104 630) the Hoare annotation is: (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~blastFlag~0 0) (= 12292 ssl3_accept_~s__state~0))) [2020-10-28 09:37:54,599 INFO L274 CegarLoopResult]: For program point L304(lines 304 308) no Hoare annotation was computed. [2020-10-28 09:37:54,599 INFO L274 CegarLoopResult]: For program point L304-2(lines 211 592) no Hoare annotation was computed. [2020-10-28 09:37:54,599 INFO L274 CegarLoopResult]: For program point L635(lines 635 639) no Hoare annotation was computed. [2020-10-28 09:37:54,599 INFO L274 CegarLoopResult]: For program point L206(lines 206 596) no Hoare annotation was computed. [2020-10-28 09:37:54,599 INFO L274 CegarLoopResult]: For program point L173(lines 173 607) no Hoare annotation was computed. [2020-10-28 09:37:54,599 INFO L274 CegarLoopResult]: For program point L140(lines 140 618) no Hoare annotation was computed. [2020-10-28 09:37:54,599 INFO L274 CegarLoopResult]: For program point L107(lines 107 629) no Hoare annotation was computed. [2020-10-28 09:37:54,599 INFO L274 CegarLoopResult]: For program point L339(lines 339 343) no Hoare annotation was computed. [2020-10-28 09:37:54,599 INFO L274 CegarLoopResult]: For program point L339-2(lines 211 592) no Hoare annotation was computed. [2020-10-28 09:37:54,600 INFO L277 CegarLoopResult]: At program point L207(lines 206 596) the Hoare annotation is: true [2020-10-28 09:37:54,600 INFO L270 CegarLoopResult]: At program point L174(lines 170 608) the Hoare annotation is: (let ((.cse0 (<= 8512 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8592))) (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 0)))) [2020-10-28 09:37:54,600 INFO L270 CegarLoopResult]: At program point L141(lines 137 619) the Hoare annotation is: (let ((.cse0 (<= 8480 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8512))) (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 1)) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)))) [2020-10-28 09:37:54,600 INFO L274 CegarLoopResult]: For program point L75(lines 75 83) no Hoare annotation was computed. [2020-10-28 09:37:54,600 INFO L274 CegarLoopResult]: For program point L439(lines 439 451) no Hoare annotation was computed. [2020-10-28 09:37:54,600 INFO L270 CegarLoopResult]: At program point L406(lines 397 417) the Hoare annotation is: (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8560) (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2))) [2020-10-28 09:37:54,600 INFO L274 CegarLoopResult]: For program point L439-2(lines 439 451) no Hoare annotation was computed. [2020-10-28 09:37:54,600 INFO L277 CegarLoopResult]: At program point ssl3_acceptENTRY(lines 12 680) the Hoare annotation is: true [2020-10-28 09:37:54,600 INFO L274 CegarLoopResult]: For program point L176(lines 176 606) no Hoare annotation was computed. [2020-10-28 09:37:54,600 INFO L274 CegarLoopResult]: For program point L143(lines 143 617) no Hoare annotation was computed. [2020-10-28 09:37:54,601 INFO L274 CegarLoopResult]: For program point L110(lines 110 628) no Hoare annotation was computed. [2020-10-28 09:37:54,601 INFO L277 CegarLoopResult]: At program point L210(lines 209 595) the Hoare annotation is: true [2020-10-28 09:37:54,601 INFO L274 CegarLoopResult]: For program point L78(lines 78 82) no Hoare annotation was computed. [2020-10-28 09:37:54,601 INFO L274 CegarLoopResult]: For program point L78-2(lines 75 83) no Hoare annotation was computed. [2020-10-28 09:37:54,601 INFO L274 CegarLoopResult]: For program point L673(line 673) no Hoare annotation was computed. [2020-10-28 09:37:54,601 INFO L274 CegarLoopResult]: For program point L541(lines 541 546) no Hoare annotation was computed. [2020-10-28 09:37:54,601 INFO L274 CegarLoopResult]: For program point L442(lines 442 447) no Hoare annotation was computed. [2020-10-28 09:37:54,601 INFO L274 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-28 09:37:54,601 INFO L274 CegarLoopResult]: For program point L244(lines 244 249) no Hoare annotation was computed. [2020-10-28 09:37:54,601 INFO L274 CegarLoopResult]: For program point L179(lines 179 605) no Hoare annotation was computed. [2020-10-28 09:37:54,601 INFO L274 CegarLoopResult]: For program point L146(lines 146 616) no Hoare annotation was computed. [2020-10-28 09:37:54,602 INFO L274 CegarLoopResult]: For program point L113(lines 113 627) no Hoare annotation was computed. [2020-10-28 09:37:54,602 INFO L274 CegarLoopResult]: For program point L576(lines 576 586) no Hoare annotation was computed. [2020-10-28 09:37:54,602 INFO L274 CegarLoopResult]: For program point L576-1(lines 576 586) no Hoare annotation was computed. [2020-10-28 09:37:54,602 INFO L274 CegarLoopResult]: For program point L510(lines 510 514) no Hoare annotation was computed. [2020-10-28 09:37:54,602 INFO L274 CegarLoopResult]: For program point L510-2(lines 510 514) no Hoare annotation was computed. [2020-10-28 09:37:54,602 INFO L270 CegarLoopResult]: At program point L180(lines 176 606) the Hoare annotation is: (let ((.cse0 (<= 8512 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8608))) (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 (<= ssl3_accept_~blastFlag~0 2) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576) .cse1) (and .cse0 (<= ssl3_accept_~blastFlag~0 0) .cse1))) [2020-10-28 09:37:54,602 INFO L270 CegarLoopResult]: At program point L147(lines 143 617) the Hoare annotation is: (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8528) (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2))) [2020-10-28 09:37:54,602 INFO L274 CegarLoopResult]: For program point L478(lines 478 482) no Hoare annotation was computed. [2020-10-28 09:37:54,603 INFO L270 CegarLoopResult]: At program point L214(lines 107 629) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~blastFlag~0 0)) (.cse1 (<= ssl3_accept_~s__state~0 8448))) (or (and .cse0 (<= 8672 ssl3_accept_~s__state~0)) (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse1 .cse0) (and (<= ssl3_accept_~blastFlag~0 2) .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)))) [2020-10-28 09:37:54,603 INFO L277 CegarLoopResult]: At program point L677(lines 67 679) the Hoare annotation is: true [2020-10-28 09:37:54,603 INFO L274 CegarLoopResult]: For program point L644(lines 644 650) no Hoare annotation was computed. [2020-10-28 09:37:54,603 INFO L274 CegarLoopResult]: For program point L347(lines 347 379) no Hoare annotation was computed. [2020-10-28 09:37:54,603 INFO L274 CegarLoopResult]: For program point L314(lines 314 318) no Hoare annotation was computed. [2020-10-28 09:37:54,603 INFO L274 CegarLoopResult]: For program point L314-2(lines 314 318) no Hoare annotation was computed. [2020-10-28 09:37:54,603 INFO L274 CegarLoopResult]: For program point L182(lines 182 604) no Hoare annotation was computed. [2020-10-28 09:37:54,603 INFO L274 CegarLoopResult]: For program point L149(lines 149 615) no Hoare annotation was computed. [2020-10-28 09:37:54,603 INFO L274 CegarLoopResult]: For program point L116(lines 116 626) no Hoare annotation was computed. [2020-10-28 09:37:54,603 INFO L274 CegarLoopResult]: For program point L579(lines 579 583) no Hoare annotation was computed. [2020-10-28 09:37:54,603 INFO L274 CegarLoopResult]: For program point L85(lines 85 93) no Hoare annotation was computed. [2020-10-28 09:37:54,604 INFO L274 CegarLoopResult]: For program point L85-1(lines 67 679) no Hoare annotation was computed. [2020-10-28 09:37:54,604 INFO L274 CegarLoopResult]: For program point L350(lines 350 378) no Hoare annotation was computed. [2020-10-28 09:37:54,604 INFO L274 CegarLoopResult]: For program point L350-1(lines 350 378) no Hoare annotation was computed. [2020-10-28 09:37:54,604 INFO L274 CegarLoopResult]: For program point L251(lines 251 264) no Hoare annotation was computed. [2020-10-28 09:37:54,604 INFO L274 CegarLoopResult]: For program point L185(lines 185 603) no Hoare annotation was computed. [2020-10-28 09:37:54,604 INFO L274 CegarLoopResult]: For program point L152(lines 152 614) no Hoare annotation was computed. [2020-10-28 09:37:54,604 INFO L274 CegarLoopResult]: For program point L119(lines 119 625) no Hoare annotation was computed. [2020-10-28 09:37:54,604 INFO L274 CegarLoopResult]: For program point L86(lines 86 90) no Hoare annotation was computed. [2020-10-28 09:37:54,604 INFO L274 CegarLoopResult]: For program point L351(lines 351 375) no Hoare annotation was computed. [2020-10-28 09:37:54,605 INFO L274 CegarLoopResult]: For program point L219(lines 219 223) no Hoare annotation was computed. [2020-10-28 09:37:54,605 INFO L270 CegarLoopResult]: At program point L186(lines 182 604) the Hoare annotation is: (let ((.cse0 (<= 8512 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8640))) (or (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 0)) (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)))) [2020-10-28 09:37:54,605 INFO L270 CegarLoopResult]: At program point L153(lines 149 615) the Hoare annotation is: (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8544) (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2))) [2020-10-28 09:37:54,605 INFO L274 CegarLoopResult]: For program point L219-2(lines 211 592) no Hoare annotation was computed. [2020-10-28 09:37:54,605 INFO L274 CegarLoopResult]: For program point L253(lines 253 258) no Hoare annotation was computed. [2020-10-28 09:37:54,605 INFO L274 CegarLoopResult]: For program point L551(lines 551 559) no Hoare annotation was computed. [2020-10-28 09:37:54,605 INFO L274 CegarLoopResult]: For program point L287(lines 287 291) no Hoare annotation was computed. [2020-10-28 09:37:54,605 INFO L274 CegarLoopResult]: For program point L287-2(lines 211 592) no Hoare annotation was computed. [2020-10-28 09:37:54,605 INFO L274 CegarLoopResult]: For program point L188(lines 188 602) no Hoare annotation was computed. [2020-10-28 09:37:54,605 INFO L274 CegarLoopResult]: For program point L155(lines 155 613) no Hoare annotation was computed. [2020-10-28 09:37:54,606 INFO L274 CegarLoopResult]: For program point L122(lines 122 624) no Hoare annotation was computed. [2020-10-28 09:37:54,606 INFO L274 CegarLoopResult]: For program point ssl3_acceptEXIT(lines 12 680) no Hoare annotation was computed. [2020-10-28 09:37:54,606 INFO L274 CegarLoopResult]: For program point L387(lines 387 418) no Hoare annotation was computed. [2020-10-28 09:37:54,606 INFO L274 CegarLoopResult]: For program point L354(lines 354 374) no Hoare annotation was computed. [2020-10-28 09:37:54,606 INFO L270 CegarLoopResult]: At program point L123(lines 119 625) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8482)) (.cse1 (<= 8480 ssl3_accept_~s__state~0))) (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 1)))) [2020-10-28 09:37:54,606 INFO L274 CegarLoopResult]: For program point L388(lines 388 394) no Hoare annotation was computed. [2020-10-28 09:37:54,606 INFO L274 CegarLoopResult]: For program point L554(lines 554 558) no Hoare annotation was computed. [2020-10-28 09:37:54,606 INFO L274 CegarLoopResult]: For program point L521(lines 521 526) no Hoare annotation was computed. [2020-10-28 09:37:54,606 INFO L274 CegarLoopResult]: For program point L356(lines 356 360) no Hoare annotation was computed. [2020-10-28 09:37:54,607 INFO L274 CegarLoopResult]: For program point L323-1(lines 323 332) no Hoare annotation was computed. [2020-10-28 09:37:54,607 INFO L274 CegarLoopResult]: For program point L356-2(lines 354 372) no Hoare annotation was computed. [2020-10-28 09:37:54,607 INFO L274 CegarLoopResult]: For program point L191(lines 191 601) no Hoare annotation was computed. [2020-10-28 09:37:54,607 INFO L274 CegarLoopResult]: For program point L158(lines 158 612) no Hoare annotation was computed. [2020-10-28 09:37:54,607 INFO L274 CegarLoopResult]: For program point L125(lines 125 623) no Hoare annotation was computed. [2020-10-28 09:37:54,607 INFO L274 CegarLoopResult]: For program point ssl3_acceptFINAL(lines 12 680) no Hoare annotation was computed. [2020-10-28 09:37:54,607 INFO L270 CegarLoopResult]: At program point L555(lines 67 679) the Hoare annotation is: false [2020-10-28 09:37:54,607 INFO L274 CegarLoopResult]: For program point L489(lines 489 493) no Hoare annotation was computed. [2020-10-28 09:37:54,607 INFO L270 CegarLoopResult]: At program point L192(lines 188 602) the Hoare annotation is: (let ((.cse0 (<= 8512 ssl3_accept_~s__state~0))) (or (and .cse0 (<= ssl3_accept_~s__state~0 8640) (<= ssl3_accept_~blastFlag~0 2) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (and (<= ssl3_accept_~s__state~0 8656) .cse0 (<= ssl3_accept_~blastFlag~0 0)) (not (= ssl3_accept_~s__hit~0 0)))) [2020-10-28 09:37:54,608 INFO L270 CegarLoopResult]: At program point L159(lines 155 613) the Hoare annotation is: (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8560) (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2))) [2020-10-28 09:37:54,608 INFO L277 CegarLoopResult]: At program point L126(lines 125 623) the Hoare annotation is: true [2020-10-28 09:37:54,608 INFO L274 CegarLoopResult]: For program point L457(lines 457 461) no Hoare annotation was computed. [2020-10-28 09:37:54,608 INFO L274 CegarLoopResult]: For program point L194(lines 194 600) no Hoare annotation was computed. [2020-10-28 09:37:54,608 INFO L274 CegarLoopResult]: For program point L161(lines 161 611) no Hoare annotation was computed. [2020-10-28 09:37:54,608 INFO L274 CegarLoopResult]: For program point L128(lines 128 622) no Hoare annotation was computed. [2020-10-28 09:37:54,608 INFO L274 CegarLoopResult]: For program point L327(lines 327 331) no Hoare annotation was computed. [2020-10-28 09:37:54,609 INFO L270 CegarLoopResult]: At program point L593(lines 101 661) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~blastFlag~0 3)) (.cse2 (<= ssl3_accept_~blastFlag~0 2)) (.cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576))) (or (and (not (= ssl3_accept_~s__hit~0 0)) .cse0) (and (<= 8480 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 1) (<= ssl3_accept_~s__state~0 8496)) (<= ssl3_accept_~s__state~0 3) (and (<= ssl3_accept_~s__state~0 8672) .cse0 (<= 8672 ssl3_accept_~s__state~0) .cse1) (and (<= ssl3_accept_~s__state~0 8560) (<= 8512 ssl3_accept_~s__state~0) .cse2) (and (<= ssl3_accept_~s__state~0 8656) (<= 8656 ssl3_accept_~s__state~0) .cse2 .cse1) (<= ssl3_accept_~blastFlag~0 0) (and (<= 8448 ssl3_accept_~s__state~0) (<= ssl3_accept_~s__state~0 8448) .cse0 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3)) (and (<= ssl3_accept_~s__state~0 8640) .cse2 .cse1))) [2020-10-28 09:37:54,609 INFO L274 CegarLoopResult]: For program point L560(lines 560 564) no Hoare annotation was computed. [2020-10-28 09:37:54,609 INFO L274 CegarLoopResult]: For program point L428(lines 428 432) no Hoare annotation was computed. [2020-10-28 09:37:54,609 INFO L270 CegarLoopResult]: At program point L362(lines 344 380) the Hoare annotation is: (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8544) (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2))) [2020-10-28 09:37:54,609 INFO L274 CegarLoopResult]: For program point L197(lines 197 599) no Hoare annotation was computed. [2020-10-28 09:37:54,609 INFO L274 CegarLoopResult]: For program point L164(lines 164 610) no Hoare annotation was computed. [2020-10-28 09:37:54,609 INFO L274 CegarLoopResult]: For program point L131(lines 131 621) no Hoare annotation was computed. [2020-10-28 09:37:54,609 INFO L274 CegarLoopResult]: For program point L528(lines 528 532) no Hoare annotation was computed. [2020-10-28 09:37:54,609 INFO L274 CegarLoopResult]: For program point L462(lines 462 473) no Hoare annotation was computed. [2020-10-28 09:37:54,609 INFO L274 CegarLoopResult]: For program point L528-2(lines 211 592) no Hoare annotation was computed. [2020-10-28 09:37:54,610 INFO L270 CegarLoopResult]: At program point L396(lines 387 418) the Hoare annotation is: (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8560) (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2))) [2020-10-28 09:37:54,610 INFO L274 CegarLoopResult]: For program point L231(lines 231 242) no Hoare annotation was computed. [2020-10-28 09:37:54,610 INFO L270 CegarLoopResult]: At program point L198(lines 194 600) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8672)) (.cse1 (<= 8656 ssl3_accept_~s__state~0))) (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 0)) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)))) [2020-10-28 09:37:54,610 INFO L270 CegarLoopResult]: At program point L165(lines 161 611) the Hoare annotation is: (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8576) (<= 8512 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 2))) [2020-10-28 09:37:54,610 INFO L274 CegarLoopResult]: For program point L231-2(lines 231 242) no Hoare annotation was computed. [2020-10-28 09:37:54,610 INFO L274 CegarLoopResult]: For program point L364(lines 364 368) no Hoare annotation was computed. [2020-10-28 09:37:54,610 INFO L277 CegarLoopResult]: At program point L662(lines 100 663) the Hoare annotation is: true [2020-10-28 09:37:54,610 INFO L274 CegarLoopResult]: For program point L398(lines 398 404) no Hoare annotation was computed. [2020-10-28 09:37:54,610 INFO L274 CegarLoopResult]: For program point L233(lines 233 238) no Hoare annotation was computed. [2020-10-28 09:37:54,610 INFO L274 CegarLoopResult]: For program point L200(lines 200 598) no Hoare annotation was computed. [2020-10-28 09:37:54,611 INFO L274 CegarLoopResult]: For program point L167(lines 167 609) no Hoare annotation was computed. [2020-10-28 09:37:54,611 INFO L274 CegarLoopResult]: For program point L134(lines 134 620) no Hoare annotation was computed. [2020-10-28 09:37:54,611 INFO L270 CegarLoopResult]: At program point L101-2(lines 101 661) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~blastFlag~0 3)) (.cse2 (<= ssl3_accept_~blastFlag~0 2)) (.cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576))) (or (and (not (= ssl3_accept_~s__hit~0 0)) .cse0) (and (<= 8480 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 1) (<= ssl3_accept_~s__state~0 8496)) (<= ssl3_accept_~s__state~0 3) (and (<= ssl3_accept_~s__state~0 8672) .cse0 (<= 8672 ssl3_accept_~s__state~0) .cse1) (and (<= ssl3_accept_~s__state~0 8560) (<= 8512 ssl3_accept_~s__state~0) .cse2) (and (<= ssl3_accept_~s__state~0 8656) (<= 8656 ssl3_accept_~s__state~0) .cse2 .cse1) (<= ssl3_accept_~blastFlag~0 0) (and (<= 8448 ssl3_accept_~s__state~0) (<= ssl3_accept_~s__state~0 8448) .cse0 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3)) (and (<= ssl3_accept_~s__state~0 8640) .cse2 .cse1))) [2020-10-28 09:37:54,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:37:54 BoogieIcfgContainer [2020-10-28 09:37:54,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 09:37:54,647 INFO L168 Benchmark]: Toolchain (without parser) took 65167.60 ms. Allocated memory was 156.2 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 131.1 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 991.0 MB. Max. memory is 8.0 GB. [2020-10-28 09:37:54,647 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 156.2 MB. Free memory was 128.3 MB in the beginning and 128.2 MB in the end (delta: 135.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:37:54,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.60 ms. Allocated memory is still 156.2 MB. Free memory was 130.5 MB in the beginning and 115.6 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-28 09:37:54,648 INFO L168 Benchmark]: Boogie Preprocessor took 65.60 ms. Allocated memory is still 156.2 MB. Free memory was 115.4 MB in the beginning and 113.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 09:37:54,649 INFO L168 Benchmark]: RCFGBuilder took 930.49 ms. Allocated memory is still 156.2 MB. Free memory was 112.9 MB in the beginning and 97.8 MB in the end (delta: 15.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 8.0 GB. [2020-10-28 09:37:54,649 INFO L168 Benchmark]: TraceAbstraction took 63726.80 ms. Allocated memory was 156.2 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 97.2 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 956.0 MB. Max. memory is 8.0 GB. [2020-10-28 09:37:54,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 156.2 MB. Free memory was 128.3 MB in the beginning and 128.2 MB in the end (delta: 135.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 427.60 ms. Allocated memory is still 156.2 MB. Free memory was 130.5 MB in the beginning and 115.6 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 65.60 ms. Allocated memory is still 156.2 MB. Free memory was 115.4 MB in the beginning and 113.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 930.49 ms. Allocated memory is still 156.2 MB. Free memory was 112.9 MB in the beginning and 97.8 MB in the end (delta: 15.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 63726.80 ms. Allocated memory was 156.2 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 97.2 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 956.0 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: 387]: Loop Invariant Derived loop invariant: (!(s__hit == 0) && blastFlag <= 3) || ((s__state <= 8560 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: (((blastFlag <= 0 && 8672 <= s__state) || (!(s__hit == 0) && blastFlag <= 3)) || ((blastFlag <= 1 && s__state <= 8672) && 8672 <= s__state)) || (((s__state <= 8672 && blastFlag <= 3) && 8672 <= s__state) && s__s3__tmp__next_state___0 <= 8576) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (!(s__hit == 0) && blastFlag <= 3) || ((s__state <= 8544 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: (((8512 <= s__state && s__state <= 8640) && blastFlag <= 0) || (!(s__hit == 0) && blastFlag <= 3)) || (((8512 <= s__state && s__state <= 8640) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8576) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: ((!(s__hit == 0) && blastFlag <= 3) || ((s__state <= 8482 && 8464 <= s__state) && blastFlag <= 0)) || (((s__state <= 8482 && 8464 <= s__state) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8576) - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (((((8448 <= s__state && blastFlag <= 2) && s__state <= 8448) && s__s3__tmp__next_state___0 <= 8576) || (!(s__hit == 0) && blastFlag <= 3)) || ((8448 <= s__state && s__state <= 8448) && blastFlag <= 0)) || (((8448 <= s__state && s__state <= 8448) && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 3) - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: (!(s__hit == 0) && blastFlag <= 3) || ((s__state <= 8560 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 344]: Loop Invariant Derived loop invariant: (!(s__hit == 0) && blastFlag <= 3) || ((s__state <= 8544 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: ((((8512 <= s__state && s__state <= 8640) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8576) || ((s__state <= 8656 && 8512 <= s__state) && blastFlag <= 0)) || !(s__hit == 0) - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: (((blastFlag <= 0 && 8672 <= s__state) || (!(s__hit == 0) && blastFlag <= 3)) || (s__state <= 8448 && blastFlag <= 0)) || ((blastFlag <= 2 && s__state <= 8448) && s__s3__tmp__next_state___0 <= 8576) - InvariantResult [Line: 397]: Loop Invariant Derived loop invariant: (!(s__hit == 0) && blastFlag <= 3) || ((s__state <= 8560 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((!(s__hit == 0) && blastFlag <= 3) || ((8480 <= s__state && s__state <= 8512) && blastFlag <= 1)) || (((8480 <= s__state && s__state <= 8512) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8576) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: ((((((((!(s__hit == 0) && blastFlag <= 3) || ((8480 <= s__state && blastFlag <= 1) && s__state <= 8496)) || s__state <= 3) || (((s__state <= 8672 && blastFlag <= 3) && 8672 <= s__state) && s__s3__tmp__next_state___0 <= 8576)) || ((s__state <= 8560 && 8512 <= s__state) && blastFlag <= 2)) || (((s__state <= 8656 && 8656 <= s__state) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8576)) || blastFlag <= 0) || (((8448 <= s__state && s__state <= 8448) && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 3)) || ((s__state <= 8640 && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8576) - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: ((!(s__hit == 0) && blastFlag <= 3) || (((8512 <= s__state && s__state <= 8592) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8576)) || ((8512 <= s__state && s__state <= 8592) && blastFlag <= 0) - InvariantResult [Line: 206]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: (!(s__hit == 0) && blastFlag <= 3) || ((s__state <= 8576 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: ((!(s__hit == 0) && blastFlag <= 3) || (((s__state <= 8482 && 8480 <= s__state) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8576)) || ((s__state <= 8482 && 8480 <= s__state) && blastFlag <= 1) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: ((!(s__hit == 0) && blastFlag <= 3) || ((s__state <= 8672 && 8656 <= s__state) && blastFlag <= 0)) || (((s__state <= 8672 && 8656 <= s__state) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8576) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: ((((((((!(s__hit == 0) && blastFlag <= 3) || ((8480 <= s__state && blastFlag <= 1) && s__state <= 8496)) || s__state <= 3) || (((s__state <= 8672 && blastFlag <= 3) && 8672 <= s__state) && s__s3__tmp__next_state___0 <= 8576)) || ((s__state <= 8560 && 8512 <= s__state) && blastFlag <= 2)) || (((s__state <= 8656 && 8656 <= s__state) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8576)) || blastFlag <= 0) || (((8448 <= s__state && s__state <= 8448) && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 3)) || ((s__state <= 8640 && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8576) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (!(s__hit == 0) && blastFlag <= 3) || ((s__state <= 8528 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: (!(s__hit == 0) && blastFlag <= 3) || (blastFlag <= 0 && 12292 == s__state) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: ((!(s__hit == 0) && blastFlag <= 3) || (((8512 <= s__state && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8576) && s__state <= 8608)) || ((8512 <= s__state && blastFlag <= 0) && s__state <= 8608) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 153 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 56.9s, OverallIterations: 27, TraceHistogramMax: 25, AutomataDifference: 16.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5965 SDtfs, 8694 SDslu, 238 SDs, 0 SdLazy, 5975 SolverSat, 935 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 200 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3450occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 27 MinimizatonAttempts, 3562 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 60 PreInvPairs, 346 NumberOfFragments, 729 HoareAnnotationTreeSize, 60 FomulaSimplifications, 57659 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 34 FomulaSimplificationsInter, 7216 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 33.1s InterpolantComputationTime, 10387 NumberOfCodeBlocks, 10387 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 10360 ConstructedInterpolants, 0 QuantifiedInterpolants, 6381600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 24 PerfectInterpolantSequences, 58071/58200 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...