/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=DEEPEST --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 [2020-10-27 15:01:07,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:01:07,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:01:07,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:01:07,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:01:07,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:01:07,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:01:07,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:01:07,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:01:07,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:01:07,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:01:07,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:01:07,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:01:07,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:01:07,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:01:07,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:01:07,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:01:07,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:01:07,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:01:07,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:01:07,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:01:07,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:01:07,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:01:07,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:01:07,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:01:07,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:01:07,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:01:07,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:01:07,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:01:07,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:01:07,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:01:07,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:01:07,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:01:07,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:01:07,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:01:07,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:01:07,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:01:07,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:01:07,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:01:07,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:01:07,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:01:07,207 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 [2020-10-27 15:01:07,240 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:01:07,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:01:07,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:01:07,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:01:07,242 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:01:07,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:01:07,243 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:01:07,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:01:07,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:01:07,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:01:07,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:01:07,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:01:07,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:01:07,244 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:01:07,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:01:07,245 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:01:07,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:01:07,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:01:07,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:01:07,245 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:01:07,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:01:07,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:01:07,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:01:07,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:01:07,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:01:07,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:01:07,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:01:07,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:01:07,247 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:01:07,247 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:01:07,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:01:07,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:01:07,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:01:07,696 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:01:07,697 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:01:07,698 INFO L432 ainManager$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 [2020-10-27 15:01:07,777 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/995d507f3/d9b2abc2d3574def87a663f8dc24b32e/FLAG3528d34ab [2020-10-27 15:01:08,474 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:01:08,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c [2020-10-27 15:01:08,492 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/995d507f3/d9b2abc2d3574def87a663f8dc24b32e/FLAG3528d34ab [2020-10-27 15:01:08,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/995d507f3/d9b2abc2d3574def87a663f8dc24b32e [2020-10-27 15:01:08,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:01:08,757 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:01:08,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:01:08,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:01:08,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:01:08,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:01:08" (1/1) ... [2020-10-27 15:01:08,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19974396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:08, skipping insertion in model container [2020-10-27 15:01:08,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:01:08" (1/1) ... [2020-10-27 15:01:08,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:01:08,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:01:09,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:01:09,137 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:01:09,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:01:09,314 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:01:09,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:09 WrapperNode [2020-10-27 15:01:09,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:01:09,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:01:09,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:01:09,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:01:09,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:09" (1/1) ... [2020-10-27 15:01:09,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:09" (1/1) ... [2020-10-27 15:01:09,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:09" (1/1) ... [2020-10-27 15:01:09,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:09" (1/1) ... [2020-10-27 15:01:09,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:09" (1/1) ... [2020-10-27 15:01:09,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:09" (1/1) ... [2020-10-27 15:01:09,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:09" (1/1) ... [2020-10-27 15:01:09,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:01:09,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:01:09,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:01:09,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:01:09,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:09" (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 [2020-10-27 15:01:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:01:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:01:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:01:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-10-27 15:01:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:01:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:01:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:01:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:01:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:01:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-27 15:01:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 15:01:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:01:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-27 15:01:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-10-27 15:01:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:01:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:01:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:01:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:01:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:01:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:01:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:01:09,824 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 15:01:10,547 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-10-27 15:01:10,547 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-10-27 15:01:10,577 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:01:10,578 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:01:10,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:01:10 BoogieIcfgContainer [2020-10-27 15:01:10,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:01:10,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:01:10,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:01:10,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:01:10,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:01:08" (1/3) ... [2020-10-27 15:01:10,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353d4225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:01:10, skipping insertion in model container [2020-10-27 15:01:10,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:09" (2/3) ... [2020-10-27 15:01:10,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353d4225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:01:10, skipping insertion in model container [2020-10-27 15:01:10,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:01:10" (3/3) ... [2020-10-27 15:01:10,589 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.BV.c.cil.c [2020-10-27 15:01:10,601 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:01:10,606 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:01:10,620 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:01:10,648 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:01:10,649 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:01:10,649 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:01:10,649 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:01:10,649 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:01:10,649 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:01:10,649 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:01:10,650 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:01:10,671 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2020-10-27 15:01:10,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-27 15:01:10,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:10,683 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] [2020-10-27 15:01:10,683 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:10,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:10,690 INFO L82 PathProgramCache]: Analyzing trace with hash -76443695, now seen corresponding path program 1 times [2020-10-27 15:01:10,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:10,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014283335] [2020-10-27 15:01:10,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:10,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:11,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:11,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:11,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:11,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-27 15:01:11,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:11,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 805 [2020-10-27 15:01:11,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:11,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 15:01:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 15:01:11,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:01:11,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:11,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:11,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:11,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:11,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:11,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:01:11,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:11,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:11,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:11,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:01:11,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014283335] [2020-10-27 15:01:11,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:11,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:11,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553750020] [2020-10-27 15:01:11,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:11,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:11,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:11,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:11,871 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 4 states. [2020-10-27 15:01:12,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:12,912 INFO L93 Difference]: Finished difference Result 417 states and 706 transitions. [2020-10-27 15:01:12,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:12,914 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-10-27 15:01:12,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:12,927 INFO L225 Difference]: With dead ends: 417 [2020-10-27 15:01:12,927 INFO L226 Difference]: Without dead ends: 249 [2020-10-27 15:01:12,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:12,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-10-27 15:01:13,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2020-10-27 15:01:13,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-27 15:01:13,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 379 transitions. [2020-10-27 15:01:13,012 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 379 transitions. Word has length 51 [2020-10-27 15:01:13,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:13,013 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 379 transitions. [2020-10-27 15:01:13,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:13,013 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 379 transitions. [2020-10-27 15:01:13,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-27 15:01:13,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:13,018 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] [2020-10-27 15:01:13,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:01:13,019 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:13,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:13,019 INFO L82 PathProgramCache]: Analyzing trace with hash -2044036778, now seen corresponding path program 1 times [2020-10-27 15:01:13,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:13,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177095007] [2020-10-27 15:01:13,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:13,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:13,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:13,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:13,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:13,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 15:01:13,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:13,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-27 15:01:13,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 15:01:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 15:01:13,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:13,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:13,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:13,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:13,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:13,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:13,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:01:13,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:13,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:13,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:13,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:13,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:01:13,417 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:01:13,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177095007] [2020-10-27 15:01:13,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:13,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:13,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10027429] [2020-10-27 15:01:13,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:13,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:13,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:13,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:13,421 INFO L87 Difference]: Start difference. First operand 249 states and 379 transitions. Second operand 4 states. [2020-10-27 15:01:14,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:14,270 INFO L93 Difference]: Finished difference Result 598 states and 939 transitions. [2020-10-27 15:01:14,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:14,271 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-27 15:01:14,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:14,275 INFO L225 Difference]: With dead ends: 598 [2020-10-27 15:01:14,275 INFO L226 Difference]: Without dead ends: 339 [2020-10-27 15:01:14,278 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 [2020-10-27 15:01:14,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-10-27 15:01:14,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 329. [2020-10-27 15:01:14,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-10-27 15:01:14,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 491 transitions. [2020-10-27 15:01:14,339 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 491 transitions. Word has length 67 [2020-10-27 15:01:14,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:14,339 INFO L481 AbstractCegarLoop]: Abstraction has 329 states and 491 transitions. [2020-10-27 15:01:14,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:14,339 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 491 transitions. [2020-10-27 15:01:14,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 15:01:14,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:14,347 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] [2020-10-27 15:01:14,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:01:14,348 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:14,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:14,348 INFO L82 PathProgramCache]: Analyzing trace with hash -769190382, now seen corresponding path program 1 times [2020-10-27 15:01:14,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:14,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39321893] [2020-10-27 15:01:14,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:14,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:14,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:14,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:14,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:14,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 15:01:14,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:14,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-27 15:01:14,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:14,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:14,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 15:01:14,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 15:01:14,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:14,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:14,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:14,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:14,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:14,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:14,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:14,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:14,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:14,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:14,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:14,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:14,732 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-27 15:01:14,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39321893] [2020-10-27 15:01:14,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:14,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:14,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449112133] [2020-10-27 15:01:14,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:14,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:14,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:14,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:14,735 INFO L87 Difference]: Start difference. First operand 329 states and 491 transitions. Second operand 4 states. [2020-10-27 15:01:15,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:15,662 INFO L93 Difference]: Finished difference Result 734 states and 1127 transitions. [2020-10-27 15:01:15,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:15,663 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-10-27 15:01:15,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:15,667 INFO L225 Difference]: With dead ends: 734 [2020-10-27 15:01:15,667 INFO L226 Difference]: Without dead ends: 419 [2020-10-27 15:01:15,669 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 [2020-10-27 15:01:15,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-10-27 15:01:15,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 411. [2020-10-27 15:01:15,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-10-27 15:01:15,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 583 transitions. [2020-10-27 15:01:15,698 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 583 transitions. Word has length 88 [2020-10-27 15:01:15,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:15,699 INFO L481 AbstractCegarLoop]: Abstraction has 411 states and 583 transitions. [2020-10-27 15:01:15,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:15,699 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 583 transitions. [2020-10-27 15:01:15,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 15:01:15,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:15,703 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] [2020-10-27 15:01:15,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:01:15,703 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:15,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:15,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1666583660, now seen corresponding path program 1 times [2020-10-27 15:01:15,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:15,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070694785] [2020-10-27 15:01:15,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:15,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:15,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:15,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:15,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:15,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 15:01:15,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:15,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-27 15:01:15,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:15,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:15,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 15:01:15,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 15:01:15,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:15,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:16,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:16,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:16,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:16,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:16,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:16,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:16,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:16,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:16,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:16,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:16,017 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-27 15:01:16,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070694785] [2020-10-27 15:01:16,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:16,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:16,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899211758] [2020-10-27 15:01:16,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:16,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:16,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:16,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:16,020 INFO L87 Difference]: Start difference. First operand 411 states and 583 transitions. Second operand 4 states. [2020-10-27 15:01:16,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:16,817 INFO L93 Difference]: Finished difference Result 860 states and 1240 transitions. [2020-10-27 15:01:16,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:16,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-10-27 15:01:16,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:16,822 INFO L225 Difference]: With dead ends: 860 [2020-10-27 15:01:16,822 INFO L226 Difference]: Without dead ends: 463 [2020-10-27 15:01:16,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:16,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-10-27 15:01:16,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 457. [2020-10-27 15:01:16,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-10-27 15:01:16,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 639 transitions. [2020-10-27 15:01:16,869 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 639 transitions. Word has length 88 [2020-10-27 15:01:16,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:16,869 INFO L481 AbstractCegarLoop]: Abstraction has 457 states and 639 transitions. [2020-10-27 15:01:16,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:16,869 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 639 transitions. [2020-10-27 15:01:16,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-27 15:01:16,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:16,873 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:16,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:01:16,873 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:16,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:16,874 INFO L82 PathProgramCache]: Analyzing trace with hash -319251695, now seen corresponding path program 1 times [2020-10-27 15:01:16,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:16,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431046953] [2020-10-27 15:01:16,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:16,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:16,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:16,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:17,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:17,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-27 15:01:17,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:17,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-27 15:01:17,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 15:01:17,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 15:01:17,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:17,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:17,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:17,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:17,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:17,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:17,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:01:17,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:17,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:17,159 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-27 15:01:17,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431046953] [2020-10-27 15:01:17,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:17,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:17,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763274411] [2020-10-27 15:01:17,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:17,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:17,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:17,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:17,161 INFO L87 Difference]: Start difference. First operand 457 states and 639 transitions. Second operand 4 states. [2020-10-27 15:01:17,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:17,938 INFO L93 Difference]: Finished difference Result 950 states and 1341 transitions. [2020-10-27 15:01:17,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:17,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 96 [2020-10-27 15:01:17,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:17,943 INFO L225 Difference]: With dead ends: 950 [2020-10-27 15:01:17,943 INFO L226 Difference]: Without dead ends: 507 [2020-10-27 15:01:17,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:17,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-10-27 15:01:17,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 499. [2020-10-27 15:01:17,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-10-27 15:01:17,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 691 transitions. [2020-10-27 15:01:17,970 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 691 transitions. Word has length 96 [2020-10-27 15:01:17,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:17,972 INFO L481 AbstractCegarLoop]: Abstraction has 499 states and 691 transitions. [2020-10-27 15:01:17,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:17,972 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 691 transitions. [2020-10-27 15:01:17,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-27 15:01:17,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:17,975 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-27 15:01:17,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:01:17,975 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:17,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:17,976 INFO L82 PathProgramCache]: Analyzing trace with hash -987208218, now seen corresponding path program 1 times [2020-10-27 15:01:17,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:17,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [955479930] [2020-10-27 15:01:17,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:18,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:18,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:18,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:18,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:18,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 15:01:18,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:18,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-27 15:01:18,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:18,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:18,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-27 15:01:18,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 15:01:18,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:18,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:18,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:18,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:18,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:18,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:18,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:01:18,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:18,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:18,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:18,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:18,303 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-27 15:01:18,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [955479930] [2020-10-27 15:01:18,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:18,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:18,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175538065] [2020-10-27 15:01:18,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:18,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:18,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:18,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:18,311 INFO L87 Difference]: Start difference. First operand 499 states and 691 transitions. Second operand 4 states. [2020-10-27 15:01:19,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:19,202 INFO L93 Difference]: Finished difference Result 1096 states and 1568 transitions. [2020-10-27 15:01:19,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:19,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2020-10-27 15:01:19,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:19,209 INFO L225 Difference]: With dead ends: 1096 [2020-10-27 15:01:19,209 INFO L226 Difference]: Without dead ends: 587 [2020-10-27 15:01:19,211 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 [2020-10-27 15:01:19,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-10-27 15:01:19,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 549. [2020-10-27 15:01:19,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2020-10-27 15:01:19,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 777 transitions. [2020-10-27 15:01:19,244 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 777 transitions. Word has length 108 [2020-10-27 15:01:19,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:19,244 INFO L481 AbstractCegarLoop]: Abstraction has 549 states and 777 transitions. [2020-10-27 15:01:19,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:19,245 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 777 transitions. [2020-10-27 15:01:19,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-27 15:01:19,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:19,248 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] [2020-10-27 15:01:19,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:01:19,249 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:19,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:19,249 INFO L82 PathProgramCache]: Analyzing trace with hash 816009435, now seen corresponding path program 1 times [2020-10-27 15:01:19,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:19,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431790063] [2020-10-27 15:01:19,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:19,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:19,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:19,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-27 15:01:19,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:19,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-27 15:01:19,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:19,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:19,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-27 15:01:19,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 15:01:19,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:19,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:19,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:19,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:19,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:19,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:19,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:19,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:19,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:19,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:19,496 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-27 15:01:19,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431790063] [2020-10-27 15:01:19,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:19,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:19,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164421968] [2020-10-27 15:01:19,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:19,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:19,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:19,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:19,501 INFO L87 Difference]: Start difference. First operand 549 states and 777 transitions. Second operand 4 states. [2020-10-27 15:01:20,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:20,200 INFO L93 Difference]: Finished difference Result 818 states and 1160 transitions. [2020-10-27 15:01:20,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:20,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2020-10-27 15:01:20,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:20,208 INFO L225 Difference]: With dead ends: 818 [2020-10-27 15:01:20,208 INFO L226 Difference]: Without dead ends: 815 [2020-10-27 15:01:20,210 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 [2020-10-27 15:01:20,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2020-10-27 15:01:20,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 815. [2020-10-27 15:01:20,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2020-10-27 15:01:20,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1156 transitions. [2020-10-27 15:01:20,245 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1156 transitions. Word has length 128 [2020-10-27 15:01:20,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:20,246 INFO L481 AbstractCegarLoop]: Abstraction has 815 states and 1156 transitions. [2020-10-27 15:01:20,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:20,246 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1156 transitions. [2020-10-27 15:01:20,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-27 15:01:20,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:20,250 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] [2020-10-27 15:01:20,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:01:20,250 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:20,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:20,251 INFO L82 PathProgramCache]: Analyzing trace with hash -844353544, now seen corresponding path program 1 times [2020-10-27 15:01:20,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:20,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425853745] [2020-10-27 15:01:20,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:20,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:20,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:20,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:20,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-27 15:01:20,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:01:20,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-27 15:01:20,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:20,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:20,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-10-27 15:01:20,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 15:01:20,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:20,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:20,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:20,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:20,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:20,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:20,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:20,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:20,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:20,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:20,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:20,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:20,736 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-27 15:01:20,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425853745] [2020-10-27 15:01:20,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:20,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:20,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484861895] [2020-10-27 15:01:20,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:20,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:20,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:20,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:20,741 INFO L87 Difference]: Start difference. First operand 815 states and 1156 transitions. Second operand 4 states. [2020-10-27 15:01:21,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:21,668 INFO L93 Difference]: Finished difference Result 1709 states and 2429 transitions. [2020-10-27 15:01:21,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:21,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2020-10-27 15:01:21,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:21,675 INFO L225 Difference]: With dead ends: 1709 [2020-10-27 15:01:21,675 INFO L226 Difference]: Without dead ends: 809 [2020-10-27 15:01:21,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:21,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2020-10-27 15:01:21,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2020-10-27 15:01:21,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-10-27 15:01:21,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1138 transitions. [2020-10-27 15:01:21,716 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1138 transitions. Word has length 195 [2020-10-27 15:01:21,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:21,717 INFO L481 AbstractCegarLoop]: Abstraction has 809 states and 1138 transitions. [2020-10-27 15:01:21,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:21,717 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1138 transitions. [2020-10-27 15:01:21,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-27 15:01:21,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:21,722 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, 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] [2020-10-27 15:01:21,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 15:01:21,723 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:21,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:21,723 INFO L82 PathProgramCache]: Analyzing trace with hash -336082152, now seen corresponding path program 1 times [2020-10-27 15:01:21,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:21,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725549764] [2020-10-27 15:01:21,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:21,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:21,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:22,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:22,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-27 15:01:22,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:01:22,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-27 15:01:22,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:22,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:22,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-27 15:01:22,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 15:01:22,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:22,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:22,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:22,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:22,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:22,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:22,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:01:22,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:22,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:22,215 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-27 15:01:22,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725549764] [2020-10-27 15:01:22,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:22,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:22,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105723937] [2020-10-27 15:01:22,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:22,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:22,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:22,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:22,218 INFO L87 Difference]: Start difference. First operand 809 states and 1138 transitions. Second operand 4 states. [2020-10-27 15:01:23,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:23,111 INFO L93 Difference]: Finished difference Result 1736 states and 2501 transitions. [2020-10-27 15:01:23,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:23,112 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 206 [2020-10-27 15:01:23,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:23,118 INFO L225 Difference]: With dead ends: 1736 [2020-10-27 15:01:23,118 INFO L226 Difference]: Without dead ends: 941 [2020-10-27 15:01:23,121 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 [2020-10-27 15:01:23,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2020-10-27 15:01:23,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 932. [2020-10-27 15:01:23,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2020-10-27 15:01:23,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1285 transitions. [2020-10-27 15:01:23,167 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1285 transitions. Word has length 206 [2020-10-27 15:01:23,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:23,168 INFO L481 AbstractCegarLoop]: Abstraction has 932 states and 1285 transitions. [2020-10-27 15:01:23,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:23,168 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1285 transitions. [2020-10-27 15:01:23,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-27 15:01:23,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:23,173 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:23,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 15:01:23,173 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:23,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:23,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1115662447, now seen corresponding path program 1 times [2020-10-27 15:01:23,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:23,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191441826] [2020-10-27 15:01:23,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:23,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:23,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:23,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:23,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:23,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-27 15:01:23,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:23,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 488 [2020-10-27 15:01:23,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:23,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:23,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-27 15:01:23,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 15:01:23,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:23,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:23,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:23,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:23,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:23,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:23,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:01:23,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:23,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:23,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:23,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:23,818 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2020-10-27 15:01:23,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191441826] [2020-10-27 15:01:23,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:23,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:23,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680099876] [2020-10-27 15:01:23,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:23,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:23,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:23,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:23,840 INFO L87 Difference]: Start difference. First operand 932 states and 1285 transitions. Second operand 4 states. [2020-10-27 15:01:24,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:24,599 INFO L93 Difference]: Finished difference Result 1952 states and 2735 transitions. [2020-10-27 15:01:24,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:24,600 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 212 [2020-10-27 15:01:24,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:24,606 INFO L225 Difference]: With dead ends: 1952 [2020-10-27 15:01:24,606 INFO L226 Difference]: Without dead ends: 1034 [2020-10-27 15:01:24,609 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 [2020-10-27 15:01:24,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2020-10-27 15:01:24,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1013. [2020-10-27 15:01:24,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1013 states. [2020-10-27 15:01:24,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1381 transitions. [2020-10-27 15:01:24,653 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1381 transitions. Word has length 212 [2020-10-27 15:01:24,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:24,654 INFO L481 AbstractCegarLoop]: Abstraction has 1013 states and 1381 transitions. [2020-10-27 15:01:24,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:24,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1381 transitions. [2020-10-27 15:01:24,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-27 15:01:24,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:24,659 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] [2020-10-27 15:01:24,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 15:01:24,659 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:24,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:24,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1626232770, now seen corresponding path program 1 times [2020-10-27 15:01:24,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:24,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528255320] [2020-10-27 15:01:24,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:24,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:24,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:24,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:25,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:25,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-27 15:01:25,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:25,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 497 [2020-10-27 15:01:25,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:25,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:25,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-27 15:01:25,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 15:01:25,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:01:25,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:25,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:25,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:25,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:25,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:25,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:25,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:25,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:25,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:25,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:25,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:25,359 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-10-27 15:01:25,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528255320] [2020-10-27 15:01:25,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:25,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:25,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565509041] [2020-10-27 15:01:25,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:25,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:25,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:25,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:25,362 INFO L87 Difference]: Start difference. First operand 1013 states and 1381 transitions. Second operand 4 states. [2020-10-27 15:01:26,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:26,107 INFO L93 Difference]: Finished difference Result 2048 states and 2804 transitions. [2020-10-27 15:01:26,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:26,108 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 215 [2020-10-27 15:01:26,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:26,114 INFO L225 Difference]: With dead ends: 2048 [2020-10-27 15:01:26,114 INFO L226 Difference]: Without dead ends: 1049 [2020-10-27 15:01:26,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:26,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2020-10-27 15:01:26,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1013. [2020-10-27 15:01:26,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1013 states. [2020-10-27 15:01:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1345 transitions. [2020-10-27 15:01:26,165 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1345 transitions. Word has length 215 [2020-10-27 15:01:26,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:26,166 INFO L481 AbstractCegarLoop]: Abstraction has 1013 states and 1345 transitions. [2020-10-27 15:01:26,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:26,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1345 transitions. [2020-10-27 15:01:26,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-27 15:01:26,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:26,171 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1] [2020-10-27 15:01:26,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 15:01:26,172 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:26,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:26,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1655550516, now seen corresponding path program 1 times [2020-10-27 15:01:26,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:26,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182415238] [2020-10-27 15:01:26,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:26,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:26,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:26,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:26,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:26,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-27 15:01:26,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:26,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-10-27 15:01:26,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:26,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:26,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-27 15:01:26,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 15:01:26,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:26,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:26,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:26,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:26,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:26,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:26,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:26,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:26,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:26,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:26,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:26,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 15:01:26,824 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2020-10-27 15:01:26,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182415238] [2020-10-27 15:01:26,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:26,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:26,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44153385] [2020-10-27 15:01:26,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:26,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:26,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:26,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:26,827 INFO L87 Difference]: Start difference. First operand 1013 states and 1345 transitions. Second operand 4 states. [2020-10-27 15:01:27,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:27,608 INFO L93 Difference]: Finished difference Result 2150 states and 2921 transitions. [2020-10-27 15:01:27,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:27,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 235 [2020-10-27 15:01:27,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:27,616 INFO L225 Difference]: With dead ends: 2150 [2020-10-27 15:01:27,616 INFO L226 Difference]: Without dead ends: 1115 [2020-10-27 15:01:27,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:27,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2020-10-27 15:01:27,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1100. [2020-10-27 15:01:27,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1100 states. [2020-10-27 15:01:27,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1495 transitions. [2020-10-27 15:01:27,671 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1495 transitions. Word has length 235 [2020-10-27 15:01:27,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:27,672 INFO L481 AbstractCegarLoop]: Abstraction has 1100 states and 1495 transitions. [2020-10-27 15:01:27,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:27,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1495 transitions. [2020-10-27 15:01:27,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-27 15:01:27,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:27,678 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 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] [2020-10-27 15:01:27,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 15:01:27,679 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:27,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:27,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1282546157, now seen corresponding path program 1 times [2020-10-27 15:01:27,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:27,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242456618] [2020-10-27 15:01:27,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:27,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:27,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:27,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:27,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:27,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:28,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:28,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-27 15:01:28,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:01:28,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 909 [2020-10-27 15:01:28,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:28,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:28,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-10-27 15:01:28,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 15:01:28,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:28,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:28,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:28,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:28,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:28,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:28,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:28,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:28,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:28,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:28,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:28,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:28,763 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2020-10-27 15:01:28,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242456618] [2020-10-27 15:01:28,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:28,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:28,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496006201] [2020-10-27 15:01:28,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:28,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:28,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:28,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:28,766 INFO L87 Difference]: Start difference. First operand 1100 states and 1495 transitions. Second operand 4 states. [2020-10-27 15:01:29,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:29,549 INFO L93 Difference]: Finished difference Result 2411 states and 3347 transitions. [2020-10-27 15:01:29,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:29,550 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 248 [2020-10-27 15:01:29,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:29,557 INFO L225 Difference]: With dead ends: 2411 [2020-10-27 15:01:29,557 INFO L226 Difference]: Without dead ends: 1295 [2020-10-27 15:01:29,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:29,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2020-10-27 15:01:29,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1241. [2020-10-27 15:01:29,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1241 states. [2020-10-27 15:01:29,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1699 transitions. [2020-10-27 15:01:29,610 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1699 transitions. Word has length 248 [2020-10-27 15:01:29,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:29,611 INFO L481 AbstractCegarLoop]: Abstraction has 1241 states and 1699 transitions. [2020-10-27 15:01:29,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:29,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1699 transitions. [2020-10-27 15:01:29,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-27 15:01:29,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:29,616 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 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] [2020-10-27 15:01:29,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 15:01:29,617 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:29,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:29,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1878642733, now seen corresponding path program 1 times [2020-10-27 15:01:29,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:29,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066796587] [2020-10-27 15:01:29,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:29,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:29,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:29,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:29,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:30,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:30,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:30,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-27 15:01:30,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:01:30,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1262 [2020-10-27 15:01:30,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:30,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:30,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-27 15:01:30,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 15:01:30,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:30,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:30,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:31,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:31,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:31,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:31,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:31,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:31,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:31,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:31,064 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2020-10-27 15:01:31,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066796587] [2020-10-27 15:01:31,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:31,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:31,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158876739] [2020-10-27 15:01:31,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:31,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:31,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:31,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:31,070 INFO L87 Difference]: Start difference. First operand 1241 states and 1699 transitions. Second operand 4 states. [2020-10-27 15:01:31,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:31,803 INFO L93 Difference]: Finished difference Result 2531 states and 3476 transitions. [2020-10-27 15:01:31,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:31,804 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 249 [2020-10-27 15:01:31,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:31,811 INFO L225 Difference]: With dead ends: 2531 [2020-10-27 15:01:31,812 INFO L226 Difference]: Without dead ends: 1304 [2020-10-27 15:01:31,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:31,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2020-10-27 15:01:31,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1295. [2020-10-27 15:01:31,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1295 states. [2020-10-27 15:01:31,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1768 transitions. [2020-10-27 15:01:31,868 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1768 transitions. Word has length 249 [2020-10-27 15:01:31,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:31,869 INFO L481 AbstractCegarLoop]: Abstraction has 1295 states and 1768 transitions. [2020-10-27 15:01:31,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:31,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1768 transitions. [2020-10-27 15:01:31,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-27 15:01:31,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:31,875 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 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] [2020-10-27 15:01:31,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 15:01:31,875 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:31,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:31,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1903093437, now seen corresponding path program 1 times [2020-10-27 15:01:31,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:31,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203937897] [2020-10-27 15:01:31,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:31,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:31,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:32,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:32,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:32,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:33,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:33,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-27 15:01:33,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:01:33,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1641 [2020-10-27 15:01:33,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:33,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 15:01:33,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-27 15:01:33,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 15:01:33,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:33,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:33,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:33,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:33,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:33,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:33,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:01:33,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:33,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:33,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:33,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:33,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:01:33,726 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 420 proven. 26 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-27 15:01:33,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203937897] [2020-10-27 15:01:33,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:01:33,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:01:33,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966339589] [2020-10-27 15:01:33,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:01:33,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:33,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:01:33,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:33,729 INFO L87 Difference]: Start difference. First operand 1295 states and 1768 transitions. Second operand 5 states. [2020-10-27 15:01:35,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:35,261 INFO L93 Difference]: Finished difference Result 3648 states and 4923 transitions. [2020-10-27 15:01:35,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:01:35,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 260 [2020-10-27 15:01:35,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:35,276 INFO L225 Difference]: With dead ends: 3648 [2020-10-27 15:01:35,276 INFO L226 Difference]: Without dead ends: 2274 [2020-10-27 15:01:35,280 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 [2020-10-27 15:01:35,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2020-10-27 15:01:35,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1355. [2020-10-27 15:01:35,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1355 states. [2020-10-27 15:01:35,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1864 transitions. [2020-10-27 15:01:35,351 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1864 transitions. Word has length 260 [2020-10-27 15:01:35,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:35,351 INFO L481 AbstractCegarLoop]: Abstraction has 1355 states and 1864 transitions. [2020-10-27 15:01:35,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:01:35,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1864 transitions. [2020-10-27 15:01:35,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-27 15:01:35,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:35,358 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:35,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 15:01:35,359 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:35,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:35,359 INFO L82 PathProgramCache]: Analyzing trace with hash 2092226333, now seen corresponding path program 1 times [2020-10-27 15:01:35,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:35,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64991806] [2020-10-27 15:01:35,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:35,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:35,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:35,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:36,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:36,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-10-27 15:01:36,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:36,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 651 [2020-10-27 15:01:36,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:36,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 15:01:36,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-27 15:01:36,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-27 15:01:36,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:36,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:36,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:36,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:36,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:36,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:36,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:01:36,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:36,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:36,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:36,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:36,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:36,235 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 454 proven. 26 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-27 15:01:36,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [64991806] [2020-10-27 15:01:36,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:01:36,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:01:36,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183094708] [2020-10-27 15:01:36,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:01:36,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:36,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:01:36,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:36,239 INFO L87 Difference]: Start difference. First operand 1355 states and 1864 transitions. Second operand 5 states. [2020-10-27 15:01:38,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:38,045 INFO L93 Difference]: Finished difference Result 3999 states and 5492 transitions. [2020-10-27 15:01:38,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 15:01:38,045 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 268 [2020-10-27 15:01:38,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:38,059 INFO L225 Difference]: With dead ends: 3999 [2020-10-27 15:01:38,059 INFO L226 Difference]: Without dead ends: 2658 [2020-10-27 15:01:38,063 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-27 15:01:38,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2020-10-27 15:01:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 1691. [2020-10-27 15:01:38,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2020-10-27 15:01:38,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2338 transitions. [2020-10-27 15:01:38,145 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2338 transitions. Word has length 268 [2020-10-27 15:01:38,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:38,146 INFO L481 AbstractCegarLoop]: Abstraction has 1691 states and 2338 transitions. [2020-10-27 15:01:38,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:01:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2338 transitions. [2020-10-27 15:01:38,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-27 15:01:38,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:38,153 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2020-10-27 15:01:38,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 15:01:38,153 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:38,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:38,154 INFO L82 PathProgramCache]: Analyzing trace with hash 305033557, now seen corresponding path program 1 times [2020-10-27 15:01:38,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:38,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041581142] [2020-10-27 15:01:38,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:38,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:38,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:38,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:38,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-27 15:01:38,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:01:38,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-27 15:01:38,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:38,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-27 15:01:38,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-27 15:01:38,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:38,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:38,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:38,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:38,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:38,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:38,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:01:38,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:38,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:38,613 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 493 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2020-10-27 15:01:38,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041581142] [2020-10-27 15:01:38,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:38,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:38,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28659170] [2020-10-27 15:01:38,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:38,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:38,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:38,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:38,618 INFO L87 Difference]: Start difference. First operand 1691 states and 2338 transitions. Second operand 4 states. [2020-10-27 15:01:39,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:39,393 INFO L93 Difference]: Finished difference Result 4965 states and 6884 transitions. [2020-10-27 15:01:39,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:39,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 278 [2020-10-27 15:01:39,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:39,405 INFO L225 Difference]: With dead ends: 4965 [2020-10-27 15:01:39,405 INFO L226 Difference]: Without dead ends: 2218 [2020-10-27 15:01:39,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:39,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2020-10-27 15:01:39,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 2217. [2020-10-27 15:01:39,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2217 states. [2020-10-27 15:01:39,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2217 states to 2217 states and 3064 transitions. [2020-10-27 15:01:39,499 INFO L78 Accepts]: Start accepts. Automaton has 2217 states and 3064 transitions. Word has length 278 [2020-10-27 15:01:39,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:39,499 INFO L481 AbstractCegarLoop]: Abstraction has 2217 states and 3064 transitions. [2020-10-27 15:01:39,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:39,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2217 states and 3064 transitions. [2020-10-27 15:01:39,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-27 15:01:39,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:39,506 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:39,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 15:01:39,507 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:39,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:39,508 INFO L82 PathProgramCache]: Analyzing trace with hash -422684028, now seen corresponding path program 1 times [2020-10-27 15:01:39,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:39,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894951780] [2020-10-27 15:01:39,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:39,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:39,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:39,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:39,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:39,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-27 15:01:39,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:39,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-10-27 15:01:39,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:39,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:39,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-10-27 15:01:39,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 15:01:39,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:40,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:40,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:40,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:40,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:40,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:40,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:01:40,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:40,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:40,156 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2020-10-27 15:01:40,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894951780] [2020-10-27 15:01:40,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:40,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:40,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268656676] [2020-10-27 15:01:40,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:40,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:40,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:40,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:40,158 INFO L87 Difference]: Start difference. First operand 2217 states and 3064 transitions. Second operand 4 states. [2020-10-27 15:01:41,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:41,069 INFO L93 Difference]: Finished difference Result 4708 states and 6582 transitions. [2020-10-27 15:01:41,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:41,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 299 [2020-10-27 15:01:41,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:41,083 INFO L225 Difference]: With dead ends: 4708 [2020-10-27 15:01:41,083 INFO L226 Difference]: Without dead ends: 2505 [2020-10-27 15:01:41,089 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 [2020-10-27 15:01:41,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2020-10-27 15:01:41,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2489. [2020-10-27 15:01:41,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2020-10-27 15:01:41,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 3376 transitions. [2020-10-27 15:01:41,206 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 3376 transitions. Word has length 299 [2020-10-27 15:01:41,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:41,207 INFO L481 AbstractCegarLoop]: Abstraction has 2489 states and 3376 transitions. [2020-10-27 15:01:41,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:41,207 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 3376 transitions. [2020-10-27 15:01:41,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-27 15:01:41,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:41,215 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:41,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 15:01:41,215 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:41,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:41,216 INFO L82 PathProgramCache]: Analyzing trace with hash -791937187, now seen corresponding path program 1 times [2020-10-27 15:01:41,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:41,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330380125] [2020-10-27 15:01:41,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:41,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:41,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:41,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:41,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:41,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-27 15:01:41,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:41,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-10-27 15:01:41,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:41,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:41,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 218 [2020-10-27 15:01:41,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 15:01:41,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:41,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:41,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:41,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:41,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:41,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:41,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:41,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:41,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:41,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:41,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:41,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:41,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 573 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2020-10-27 15:01:41,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330380125] [2020-10-27 15:01:41,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:41,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:41,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162298202] [2020-10-27 15:01:41,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:41,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:41,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:41,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:41,957 INFO L87 Difference]: Start difference. First operand 2489 states and 3376 transitions. Second operand 4 states. [2020-10-27 15:01:42,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:42,740 INFO L93 Difference]: Finished difference Result 5304 states and 7300 transitions. [2020-10-27 15:01:42,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:42,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 330 [2020-10-27 15:01:42,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:42,756 INFO L225 Difference]: With dead ends: 5304 [2020-10-27 15:01:42,756 INFO L226 Difference]: Without dead ends: 2797 [2020-10-27 15:01:42,762 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 [2020-10-27 15:01:42,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2020-10-27 15:01:42,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2777. [2020-10-27 15:01:42,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2777 states. [2020-10-27 15:01:42,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2777 states to 2777 states and 3832 transitions. [2020-10-27 15:01:42,859 INFO L78 Accepts]: Start accepts. Automaton has 2777 states and 3832 transitions. Word has length 330 [2020-10-27 15:01:42,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:42,859 INFO L481 AbstractCegarLoop]: Abstraction has 2777 states and 3832 transitions. [2020-10-27 15:01:42,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:42,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2777 states and 3832 transitions. [2020-10-27 15:01:42,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2020-10-27 15:01:42,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:42,869 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:42,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 15:01:42,869 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:42,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:42,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1832537025, now seen corresponding path program 1 times [2020-10-27 15:01:42,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:42,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147252434] [2020-10-27 15:01:42,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:42,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:43,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:43,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 373 [2020-10-27 15:01:43,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:43,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-27 15:01:43,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:43,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:43,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-27 15:01:43,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 236 [2020-10-27 15:01:43,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:43,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:43,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:43,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:43,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:43,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:43,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:01:43,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:43,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:43,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:43,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:43,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:43,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 682 proven. 0 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2020-10-27 15:01:43,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147252434] [2020-10-27 15:01:43,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:43,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:43,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118143345] [2020-10-27 15:01:43,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:43,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:43,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:43,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:43,332 INFO L87 Difference]: Start difference. First operand 2777 states and 3832 transitions. Second operand 4 states. [2020-10-27 15:01:44,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:44,152 INFO L93 Difference]: Finished difference Result 5540 states and 7649 transitions. [2020-10-27 15:01:44,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:44,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 363 [2020-10-27 15:01:44,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:44,170 INFO L225 Difference]: With dead ends: 5540 [2020-10-27 15:01:44,171 INFO L226 Difference]: Without dead ends: 3474 [2020-10-27 15:01:44,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:44,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3474 states. [2020-10-27 15:01:44,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3474 to 3474. [2020-10-27 15:01:44,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3474 states. [2020-10-27 15:01:44,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 4793 transitions. [2020-10-27 15:01:44,297 INFO L78 Accepts]: Start accepts. Automaton has 3474 states and 4793 transitions. Word has length 363 [2020-10-27 15:01:44,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:44,300 INFO L481 AbstractCegarLoop]: Abstraction has 3474 states and 4793 transitions. [2020-10-27 15:01:44,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:44,300 INFO L276 IsEmpty]: Start isEmpty. Operand 3474 states and 4793 transitions. [2020-10-27 15:01:44,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2020-10-27 15:01:44,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:44,308 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:44,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 15:01:44,308 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:44,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:44,309 INFO L82 PathProgramCache]: Analyzing trace with hash 965848771, now seen corresponding path program 1 times [2020-10-27 15:01:44,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:44,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076018665] [2020-10-27 15:01:44,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:44,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:44,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:44,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:44,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:44,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 485 [2020-10-27 15:01:44,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:44,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 644 [2020-10-27 15:01:44,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:44,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 15:01:44,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 333 [2020-10-27 15:01:44,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 15:01:44,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:45,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:45,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:45,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:45,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:45,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:45,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 15:01:45,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:45,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:45,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:45,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:45,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:45,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2332 backedges. 1179 proven. 26 refuted. 0 times theorem prover too weak. 1127 trivial. 0 not checked. [2020-10-27 15:01:45,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076018665] [2020-10-27 15:01:45,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:01:45,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:01:45,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527533858] [2020-10-27 15:01:45,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:01:45,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:45,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:01:45,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:45,270 INFO L87 Difference]: Start difference. First operand 3474 states and 4793 transitions. Second operand 5 states. [2020-10-27 15:01:47,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:47,081 INFO L93 Difference]: Finished difference Result 7616 states and 10443 transitions. [2020-10-27 15:01:47,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:01:47,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 475 [2020-10-27 15:01:47,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:47,113 INFO L225 Difference]: With dead ends: 7616 [2020-10-27 15:01:47,113 INFO L226 Difference]: Without dead ends: 3928 [2020-10-27 15:01:47,121 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 [2020-10-27 15:01:47,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3928 states. [2020-10-27 15:01:47,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3928 to 2931. [2020-10-27 15:01:47,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2931 states. [2020-10-27 15:01:47,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2931 states to 2931 states and 3971 transitions. [2020-10-27 15:01:47,234 INFO L78 Accepts]: Start accepts. Automaton has 2931 states and 3971 transitions. Word has length 475 [2020-10-27 15:01:47,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:47,235 INFO L481 AbstractCegarLoop]: Abstraction has 2931 states and 3971 transitions. [2020-10-27 15:01:47,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:01:47,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2931 states and 3971 transitions. [2020-10-27 15:01:47,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2020-10-27 15:01:47,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:47,245 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 18, 18, 16, 16, 14, 14, 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, 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] [2020-10-27 15:01:47,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-27 15:01:47,245 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:47,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:47,247 INFO L82 PathProgramCache]: Analyzing trace with hash -42739954, now seen corresponding path program 1 times [2020-10-27 15:01:47,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:47,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202753683] [2020-10-27 15:01:47,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:47,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:47,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:47,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:47,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:47,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:47,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:49,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:49,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 644 [2020-10-27 15:01:49,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 15:01:49,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2157 [2020-10-27 15:01:49,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:49,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:49,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 304 [2020-10-27 15:01:49,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 15:01:49,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:49,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:49,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:49,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:49,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:49,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:49,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:01:49,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:49,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:49,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:49,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4538 backedges. 2496 proven. 0 refuted. 0 times theorem prover too weak. 2042 trivial. 0 not checked. [2020-10-27 15:01:49,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202753683] [2020-10-27 15:01:49,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:49,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:49,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429822934] [2020-10-27 15:01:49,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:49,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:49,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:49,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:49,945 INFO L87 Difference]: Start difference. First operand 2931 states and 3971 transitions. Second operand 4 states. [2020-10-27 15:01:50,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:50,769 INFO L93 Difference]: Finished difference Result 5672 states and 7650 transitions. [2020-10-27 15:01:50,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:50,773 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 634 [2020-10-27 15:01:50,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:50,782 INFO L225 Difference]: With dead ends: 5672 [2020-10-27 15:01:50,782 INFO L226 Difference]: Without dead ends: 2936 [2020-10-27 15:01:50,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:50,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2020-10-27 15:01:50,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 2926. [2020-10-27 15:01:50,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2926 states. [2020-10-27 15:01:50,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2926 states to 2926 states and 3956 transitions. [2020-10-27 15:01:50,883 INFO L78 Accepts]: Start accepts. Automaton has 2926 states and 3956 transitions. Word has length 634 [2020-10-27 15:01:50,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:50,884 INFO L481 AbstractCegarLoop]: Abstraction has 2926 states and 3956 transitions. [2020-10-27 15:01:50,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:50,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2926 states and 3956 transitions. [2020-10-27 15:01:50,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2020-10-27 15:01:50,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:50,893 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 20, 20, 20, 18, 18, 16, 16, 14, 14, 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, 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] [2020-10-27 15:01:50,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-27 15:01:50,894 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:50,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:50,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1288822648, now seen corresponding path program 1 times [2020-10-27 15:01:50,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:50,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481439039] [2020-10-27 15:01:50,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:50,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:51,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:51,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:51,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:51,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:53,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:53,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 656 [2020-10-27 15:01:53,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:01:53,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2093 [2020-10-27 15:01:53,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:53,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:53,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 316 [2020-10-27 15:01:53,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 15:01:53,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:53,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:53,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:53,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:53,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:53,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:53,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:01:53,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:53,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:53,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:53,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:53,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:53,473 INFO L134 CoverageAnalysis]: Checked inductivity of 4751 backedges. 2666 proven. 0 refuted. 0 times theorem prover too weak. 2085 trivial. 0 not checked. [2020-10-27 15:01:53,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481439039] [2020-10-27 15:01:53,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:53,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:53,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033093271] [2020-10-27 15:01:53,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:53,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:53,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:53,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:53,482 INFO L87 Difference]: Start difference. First operand 2926 states and 3956 transitions. Second operand 4 states. [2020-10-27 15:01:54,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:54,246 INFO L93 Difference]: Finished difference Result 5853 states and 7894 transitions. [2020-10-27 15:01:54,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:54,247 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 646 [2020-10-27 15:01:54,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:54,255 INFO L225 Difference]: With dead ends: 5853 [2020-10-27 15:01:54,255 INFO L226 Difference]: Without dead ends: 3087 [2020-10-27 15:01:54,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:54,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2020-10-27 15:01:54,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 3022. [2020-10-27 15:01:54,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3022 states. [2020-10-27 15:01:54,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3022 states to 3022 states and 4064 transitions. [2020-10-27 15:01:54,356 INFO L78 Accepts]: Start accepts. Automaton has 3022 states and 4064 transitions. Word has length 646 [2020-10-27 15:01:54,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:54,357 INFO L481 AbstractCegarLoop]: Abstraction has 3022 states and 4064 transitions. [2020-10-27 15:01:54,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:54,357 INFO L276 IsEmpty]: Start isEmpty. Operand 3022 states and 4064 transitions. [2020-10-27 15:01:54,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2020-10-27 15:01:54,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:54,367 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 18, 18, 16, 16, 14, 14, 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, 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] [2020-10-27 15:01:54,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-27 15:01:54,367 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:54,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:54,368 INFO L82 PathProgramCache]: Analyzing trace with hash -974678705, now seen corresponding path program 1 times [2020-10-27 15:01:54,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:54,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789021514] [2020-10-27 15:01:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:54,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:54,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:54,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:54,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:55,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:55,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 661 [2020-10-27 15:01:55,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:01:55,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1197 [2020-10-27 15:01:55,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:55,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:55,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 296 [2020-10-27 15:01:55,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 15:01:55,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:55,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:55,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:55,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:55,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:55,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:55,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:01:55,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:55,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:55,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:55,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:55,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:56,102 INFO L134 CoverageAnalysis]: Checked inductivity of 4817 backedges. 2532 proven. 0 refuted. 0 times theorem prover too weak. 2285 trivial. 0 not checked. [2020-10-27 15:01:56,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789021514] [2020-10-27 15:01:56,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:56,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:56,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881024775] [2020-10-27 15:01:56,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:56,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:56,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:56,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:56,105 INFO L87 Difference]: Start difference. First operand 3022 states and 4064 transitions. Second operand 4 states. [2020-10-27 15:01:56,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:56,869 INFO L93 Difference]: Finished difference Result 5889 states and 7891 transitions. [2020-10-27 15:01:56,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:56,870 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 651 [2020-10-27 15:01:56,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:56,878 INFO L225 Difference]: With dead ends: 5889 [2020-10-27 15:01:56,879 INFO L226 Difference]: Without dead ends: 3062 [2020-10-27 15:01:56,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:56,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2020-10-27 15:01:56,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 3062. [2020-10-27 15:01:56,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3062 states. [2020-10-27 15:01:56,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 4114 transitions. [2020-10-27 15:01:56,995 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 4114 transitions. Word has length 651 [2020-10-27 15:01:56,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:56,996 INFO L481 AbstractCegarLoop]: Abstraction has 3062 states and 4114 transitions. [2020-10-27 15:01:56,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:56,996 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 4114 transitions. [2020-10-27 15:01:57,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2020-10-27 15:01:57,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:57,006 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 18, 18, 16, 16, 14, 14, 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, 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] [2020-10-27 15:01:57,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-27 15:01:57,006 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:57,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:57,007 INFO L82 PathProgramCache]: Analyzing trace with hash 2102545467, now seen corresponding path program 1 times [2020-10-27 15:01:57,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:57,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712436740] [2020-10-27 15:01:57,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:57,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:57,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:57,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:57,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:57,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 661 [2020-10-27 15:01:57,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:57,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 707 [2020-10-27 15:01:57,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 290 [2020-10-27 15:01:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 15:01:57,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:57,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:57,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:57,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:57,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:57,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:57,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:01:57,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:57,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:57,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:57,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:57,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:58,110 INFO L134 CoverageAnalysis]: Checked inductivity of 4839 backedges. 2602 proven. 0 refuted. 0 times theorem prover too weak. 2237 trivial. 0 not checked. [2020-10-27 15:01:58,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712436740] [2020-10-27 15:01:58,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:58,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:58,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045503060] [2020-10-27 15:01:58,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:58,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:58,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:58,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:58,112 INFO L87 Difference]: Start difference. First operand 3062 states and 4114 transitions. Second operand 4 states. [2020-10-27 15:01:58,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:58,883 INFO L93 Difference]: Finished difference Result 5868 states and 7867 transitions. [2020-10-27 15:01:58,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:58,884 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 651 [2020-10-27 15:01:58,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:58,895 INFO L225 Difference]: With dead ends: 5868 [2020-10-27 15:01:58,895 INFO L226 Difference]: Without dead ends: 2996 [2020-10-27 15:01:58,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:58,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2020-10-27 15:01:58,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 2985. [2020-10-27 15:01:58,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2985 states. [2020-10-27 15:01:58,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 3986 transitions. [2020-10-27 15:01:58,995 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 3986 transitions. Word has length 651 [2020-10-27 15:01:58,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:58,996 INFO L481 AbstractCegarLoop]: Abstraction has 2985 states and 3986 transitions. [2020-10-27 15:01:58,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:58,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 3986 transitions. [2020-10-27 15:01:59,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2020-10-27 15:01:59,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:59,006 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:59,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-27 15:01:59,006 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:59,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:59,007 INFO L82 PathProgramCache]: Analyzing trace with hash 2034087449, now seen corresponding path program 1 times [2020-10-27 15:01:59,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:59,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751395271] [2020-10-27 15:01:59,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:59,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:59,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:59,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:59,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:59,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 705 [2020-10-27 15:01:59,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:59,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 614 [2020-10-27 15:01:59,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 332 [2020-10-27 15:01:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 15:01:59,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:59,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:59,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:59,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:59,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:59,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:59,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:01:59,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:59,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:59,999 INFO L134 CoverageAnalysis]: Checked inductivity of 5412 backedges. 2940 proven. 0 refuted. 0 times theorem prover too weak. 2472 trivial. 0 not checked. [2020-10-27 15:02:00,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751395271] [2020-10-27 15:02:00,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:02:00,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:02:00,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713921932] [2020-10-27 15:02:00,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:02:00,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:02:00,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:02:00,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:02:00,002 INFO L87 Difference]: Start difference. First operand 2985 states and 3986 transitions. Second operand 4 states. [2020-10-27 15:02:00,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:02:00,670 INFO L93 Difference]: Finished difference Result 4033 states and 5346 transitions. [2020-10-27 15:02:00,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:02:00,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 695 [2020-10-27 15:02:00,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:02:00,672 INFO L225 Difference]: With dead ends: 4033 [2020-10-27 15:02:00,672 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 15:02:00,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:02:00,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 15:02:00,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 15:02:00,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 15:02:00,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 15:02:00,681 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 695 [2020-10-27 15:02:00,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:02:00,681 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 15:02:00,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:02:00,681 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 15:02:00,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 15:02:00,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-27 15:02:00,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 15:02:00,817 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2020-10-27 15:02:00,982 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2020-10-27 15:02:01,255 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2020-10-27 15:02:02,135 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 133 [2020-10-27 15:02:02,743 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 133 [2020-10-27 15:02:03,033 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 17 [2020-10-27 15:02:03,228 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 16 [2020-10-27 15:02:03,477 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 17 [2020-10-27 15:02:03,728 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 22 [2020-10-27 15:02:03,914 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 19 [2020-10-27 15:02:04,389 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 28 [2020-10-27 15:02:04,684 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 17 [2020-10-27 15:02:04,948 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 17 [2020-10-27 15:02:05,084 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 15 [2020-10-27 15:02:05,441 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 21 [2020-10-27 15:02:05,702 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 17 [2020-10-27 15:02:05,904 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 17 [2020-10-27 15:02:06,941 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 45 [2020-10-27 15:02:07,211 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 22 [2020-10-27 15:02:07,459 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 17 [2020-10-27 15:02:07,697 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 17 [2020-10-27 15:02:07,860 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 17 [2020-10-27 15:02:08,872 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 110 DAG size of output: 45 [2020-10-27 15:02:09,110 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 17 [2020-10-27 15:02:09,290 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 16 [2020-10-27 15:02:09,564 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 22 [2020-10-27 15:02:09,572 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-27 15:02:09,572 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-27 15:02:09,572 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-27 15:02:09,572 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-27 15:02:09,572 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:02:09,572 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|)) [2020-10-27 15:02:09,573 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:02:09,573 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:02:09,573 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 15:02:09,573 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 15:02:09,573 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:02:09,573 INFO L277 CegarLoopResult]: At program point L688(line 688) the Hoare annotation is: true [2020-10-27 15:02:09,573 INFO L274 CegarLoopResult]: For program point L688-1(line 688) no Hoare annotation was computed. [2020-10-27 15:02:09,573 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 681 692) the Hoare annotation is: true [2020-10-27 15:02:09,573 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 681 692) no Hoare annotation was computed. [2020-10-27 15:02:09,573 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 681 692) no Hoare annotation was computed. [2020-10-27 15:02:09,574 INFO L270 CegarLoopResult]: At program point L168(lines 167 609) the Hoare annotation is: (let ((.cse1 (<= 8448 ssl3_accept_~s__state~0)) (.cse2 (<= ssl3_accept_~s__state~0 8448)) (.cse0 (<= ssl3_accept_~s__state~0 8496))) (or (and .cse0 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse1 .cse2 (<= ssl3_accept_~blastFlag~0 0)) (and (= 8482 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse0) (and .cse1 (<= ssl3_accept_~blastFlag~0 2) .cse2 (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0)) (and .cse0 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3)))) [2020-10-27 15:02:09,574 INFO L270 CegarLoopResult]: At program point L135(lines 128 622) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8496)) (.cse1 (<= ssl3_accept_~blastFlag~0 3))) (or (and .cse0 (not (= ssl3_accept_~s__hit~0 0)) .cse1) (and (<= 8448 ssl3_accept_~s__state~0) .cse0 (<= ssl3_accept_~blastFlag~0 2) .cse1))) [2020-10-27 15:02:09,574 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-27 15:02:09,574 INFO L274 CegarLoopResult]: For program point L631(lines 631 659) no Hoare annotation was computed. [2020-10-27 15:02:09,574 INFO L274 CegarLoopResult]: For program point L466(lines 466 470) no Hoare annotation was computed. [2020-10-27 15:02:09,574 INFO L274 CegarLoopResult]: For program point L632(lines 632 656) no Hoare annotation was computed. [2020-10-27 15:02:09,575 INFO L274 CegarLoopResult]: For program point L566(lines 566 570) no Hoare annotation was computed. [2020-10-27 15:02:09,575 INFO L274 CegarLoopResult]: For program point L500(lines 500 504) no Hoare annotation was computed. [2020-10-27 15:02:09,575 INFO L274 CegarLoopResult]: For program point L566-2(lines 566 570) no Hoare annotation was computed. [2020-10-27 15:02:09,575 INFO L274 CegarLoopResult]: For program point L500-2(lines 211 592) no Hoare annotation was computed. [2020-10-27 15:02:09,575 INFO L274 CegarLoopResult]: For program point L203(lines 203 597) no Hoare annotation was computed. [2020-10-27 15:02:09,575 INFO L274 CegarLoopResult]: For program point L170(lines 170 608) no Hoare annotation was computed. [2020-10-27 15:02:09,576 INFO L274 CegarLoopResult]: For program point L137(lines 137 619) no Hoare annotation was computed. [2020-10-27 15:02:09,576 INFO L274 CegarLoopResult]: For program point L104(lines 104 630) no Hoare annotation was computed. [2020-10-27 15:02:09,576 INFO L274 CegarLoopResult]: For program point L666(lines 666 670) no Hoare annotation was computed. [2020-10-27 15:02:09,576 INFO L274 CegarLoopResult]: For program point L633(lines 633 642) no Hoare annotation was computed. [2020-10-27 15:02:09,576 INFO L274 CegarLoopResult]: For program point L666-2(lines 666 670) no Hoare annotation was computed. [2020-10-27 15:02:09,576 INFO L274 CegarLoopResult]: For program point L633-2(lines 632 654) no Hoare annotation was computed. [2020-10-27 15:02:09,577 INFO L274 CegarLoopResult]: For program point L270(lines 270 274) no Hoare annotation was computed. [2020-10-27 15:02:09,577 INFO L270 CegarLoopResult]: At program point L204(lines 200 598) the Hoare annotation is: (let ((.cse1 (<= ssl3_accept_~blastFlag~0 3)) (.cse0 (<= 8672 ssl3_accept_~s__state~0))) (or (and (<= ssl3_accept_~blastFlag~0 0) .cse0) (and (<= ssl3_accept_~s__state~0 8672) .cse1 .cse0) (and (not (= ssl3_accept_~s__hit~0 0)) .cse1 .cse0))) [2020-10-27 15:02:09,577 INFO L270 CegarLoopResult]: At program point L105(lines 104 630) the Hoare annotation is: (or (and (<= ssl3_accept_~blastFlag~0 0) (= 12292 ssl3_accept_~s__state~0)) (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3) (<= 8672 ssl3_accept_~s__state~0))) [2020-10-27 15:02:09,577 INFO L274 CegarLoopResult]: For program point L304(lines 304 308) no Hoare annotation was computed. [2020-10-27 15:02:09,577 INFO L274 CegarLoopResult]: For program point L304-2(lines 211 592) no Hoare annotation was computed. [2020-10-27 15:02:09,577 INFO L274 CegarLoopResult]: For program point L635(lines 635 639) no Hoare annotation was computed. [2020-10-27 15:02:09,577 INFO L274 CegarLoopResult]: For program point L206(lines 206 596) no Hoare annotation was computed. [2020-10-27 15:02:09,577 INFO L274 CegarLoopResult]: For program point L173(lines 173 607) no Hoare annotation was computed. [2020-10-27 15:02:09,578 INFO L274 CegarLoopResult]: For program point L140(lines 140 618) no Hoare annotation was computed. [2020-10-27 15:02:09,578 INFO L274 CegarLoopResult]: For program point L107(lines 107 629) no Hoare annotation was computed. [2020-10-27 15:02:09,578 INFO L274 CegarLoopResult]: For program point L339(lines 339 343) no Hoare annotation was computed. [2020-10-27 15:02:09,578 INFO L274 CegarLoopResult]: For program point L339-2(lines 211 592) no Hoare annotation was computed. [2020-10-27 15:02:09,578 INFO L277 CegarLoopResult]: At program point L207(lines 206 596) the Hoare annotation is: true [2020-10-27 15:02:09,578 INFO L270 CegarLoopResult]: At program point L174(lines 170 608) the Hoare annotation is: (let ((.cse0 (<= 8480 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8608))) (or (and .cse0 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 (<= ssl3_accept_~blastFlag~0 0) .cse1) (and .cse0 (<= ssl3_accept_~blastFlag~0 2) (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse1))) [2020-10-27 15:02:09,578 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 8528))) (or (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-27 15:02:09,578 INFO L274 CegarLoopResult]: For program point L75(lines 75 83) no Hoare annotation was computed. [2020-10-27 15:02:09,579 INFO L274 CegarLoopResult]: For program point L439(lines 439 451) no Hoare annotation was computed. [2020-10-27 15:02:09,579 INFO L270 CegarLoopResult]: At program point L406(lines 397 417) the Hoare annotation is: (let ((.cse0 (<= 8480 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8560))) (or (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-27 15:02:09,579 INFO L274 CegarLoopResult]: For program point L439-2(lines 439 451) no Hoare annotation was computed. [2020-10-27 15:02:09,579 INFO L277 CegarLoopResult]: At program point ssl3_acceptENTRY(lines 12 680) the Hoare annotation is: true [2020-10-27 15:02:09,579 INFO L274 CegarLoopResult]: For program point L176(lines 176 606) no Hoare annotation was computed. [2020-10-27 15:02:09,579 INFO L274 CegarLoopResult]: For program point L143(lines 143 617) no Hoare annotation was computed. [2020-10-27 15:02:09,579 INFO L274 CegarLoopResult]: For program point L110(lines 110 628) no Hoare annotation was computed. [2020-10-27 15:02:09,579 INFO L277 CegarLoopResult]: At program point L210(lines 209 595) the Hoare annotation is: true [2020-10-27 15:02:09,579 INFO L274 CegarLoopResult]: For program point L78(lines 78 82) no Hoare annotation was computed. [2020-10-27 15:02:09,580 INFO L274 CegarLoopResult]: For program point L78-2(lines 75 83) no Hoare annotation was computed. [2020-10-27 15:02:09,580 INFO L274 CegarLoopResult]: For program point L673(line 673) no Hoare annotation was computed. [2020-10-27 15:02:09,580 INFO L274 CegarLoopResult]: For program point L541(lines 541 546) no Hoare annotation was computed. [2020-10-27 15:02:09,580 INFO L274 CegarLoopResult]: For program point L442(lines 442 447) no Hoare annotation was computed. [2020-10-27 15:02:09,580 INFO L274 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-27 15:02:09,580 INFO L274 CegarLoopResult]: For program point L244(lines 244 249) no Hoare annotation was computed. [2020-10-27 15:02:09,580 INFO L274 CegarLoopResult]: For program point L179(lines 179 605) no Hoare annotation was computed. [2020-10-27 15:02:09,580 INFO L274 CegarLoopResult]: For program point L146(lines 146 616) no Hoare annotation was computed. [2020-10-27 15:02:09,580 INFO L274 CegarLoopResult]: For program point L113(lines 113 627) no Hoare annotation was computed. [2020-10-27 15:02:09,581 INFO L274 CegarLoopResult]: For program point L576(lines 576 586) no Hoare annotation was computed. [2020-10-27 15:02:09,581 INFO L274 CegarLoopResult]: For program point L576-1(lines 576 586) no Hoare annotation was computed. [2020-10-27 15:02:09,581 INFO L274 CegarLoopResult]: For program point L510(lines 510 514) no Hoare annotation was computed. [2020-10-27 15:02:09,581 INFO L274 CegarLoopResult]: For program point L510-2(lines 510 514) no Hoare annotation was computed. [2020-10-27 15:02:09,581 INFO L270 CegarLoopResult]: At program point L180(lines 176 606) the Hoare annotation is: (let ((.cse0 (<= 8480 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8608))) (or (and .cse0 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 (<= ssl3_accept_~blastFlag~0 0) .cse1) (and .cse0 (<= ssl3_accept_~blastFlag~0 2) (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse1))) [2020-10-27 15:02:09,581 INFO L270 CegarLoopResult]: At program point L147(lines 143 617) the Hoare annotation is: (let ((.cse0 (<= 8480 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8528))) (or (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-27 15:02:09,581 INFO L274 CegarLoopResult]: For program point L478(lines 478 482) no Hoare annotation was computed. [2020-10-27 15:02:09,582 INFO L270 CegarLoopResult]: At program point L214(lines 107 629) the Hoare annotation is: (let ((.cse2 (<= ssl3_accept_~blastFlag~0 0)) (.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (<= ssl3_accept_~blastFlag~0 3)) (.cse3 (<= 8672 ssl3_accept_~s__state~0))) (or (and (<= ssl3_accept_~s__state~0 8496) .cse0 .cse1) (and .cse2 .cse3) (and (<= ssl3_accept_~s__state~0 8448) .cse2) (and .cse0 .cse1 .cse3))) [2020-10-27 15:02:09,582 INFO L277 CegarLoopResult]: At program point L677(lines 67 679) the Hoare annotation is: true [2020-10-27 15:02:09,582 INFO L274 CegarLoopResult]: For program point L644(lines 644 650) no Hoare annotation was computed. [2020-10-27 15:02:09,582 INFO L274 CegarLoopResult]: For program point L347(lines 347 379) no Hoare annotation was computed. [2020-10-27 15:02:09,582 INFO L274 CegarLoopResult]: For program point L314(lines 314 318) no Hoare annotation was computed. [2020-10-27 15:02:09,582 INFO L274 CegarLoopResult]: For program point L314-2(lines 314 318) no Hoare annotation was computed. [2020-10-27 15:02:09,582 INFO L274 CegarLoopResult]: For program point L182(lines 182 604) no Hoare annotation was computed. [2020-10-27 15:02:09,582 INFO L274 CegarLoopResult]: For program point L149(lines 149 615) no Hoare annotation was computed. [2020-10-27 15:02:09,582 INFO L274 CegarLoopResult]: For program point L116(lines 116 626) no Hoare annotation was computed. [2020-10-27 15:02:09,583 INFO L274 CegarLoopResult]: For program point L579(lines 579 583) no Hoare annotation was computed. [2020-10-27 15:02:09,583 INFO L274 CegarLoopResult]: For program point L85(lines 85 93) no Hoare annotation was computed. [2020-10-27 15:02:09,583 INFO L274 CegarLoopResult]: For program point L85-1(lines 67 679) no Hoare annotation was computed. [2020-10-27 15:02:09,583 INFO L274 CegarLoopResult]: For program point L350(lines 350 378) no Hoare annotation was computed. [2020-10-27 15:02:09,583 INFO L274 CegarLoopResult]: For program point L350-1(lines 350 378) no Hoare annotation was computed. [2020-10-27 15:02:09,583 INFO L274 CegarLoopResult]: For program point L251(lines 251 264) no Hoare annotation was computed. [2020-10-27 15:02:09,583 INFO L274 CegarLoopResult]: For program point L185(lines 185 603) no Hoare annotation was computed. [2020-10-27 15:02:09,583 INFO L274 CegarLoopResult]: For program point L152(lines 152 614) no Hoare annotation was computed. [2020-10-27 15:02:09,583 INFO L274 CegarLoopResult]: For program point L119(lines 119 625) no Hoare annotation was computed. [2020-10-27 15:02:09,584 INFO L274 CegarLoopResult]: For program point L86(lines 86 90) no Hoare annotation was computed. [2020-10-27 15:02:09,584 INFO L274 CegarLoopResult]: For program point L351(lines 351 375) no Hoare annotation was computed. [2020-10-27 15:02:09,584 INFO L274 CegarLoopResult]: For program point L219(lines 219 223) no Hoare annotation was computed. [2020-10-27 15:02:09,584 INFO L270 CegarLoopResult]: At program point L186(lines 182 604) the Hoare annotation is: (let ((.cse0 (<= 8480 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8672))) (or (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2) (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0)) (and .cse0 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 0)))) [2020-10-27 15:02:09,584 INFO L270 CegarLoopResult]: At program point L153(lines 149 615) the Hoare annotation is: (let ((.cse0 (<= 8480 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8560))) (or (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-27 15:02:09,584 INFO L274 CegarLoopResult]: For program point L219-2(lines 211 592) no Hoare annotation was computed. [2020-10-27 15:02:09,584 INFO L274 CegarLoopResult]: For program point L253(lines 253 258) no Hoare annotation was computed. [2020-10-27 15:02:09,584 INFO L274 CegarLoopResult]: For program point L551(lines 551 559) no Hoare annotation was computed. [2020-10-27 15:02:09,584 INFO L274 CegarLoopResult]: For program point L287(lines 287 291) no Hoare annotation was computed. [2020-10-27 15:02:09,585 INFO L274 CegarLoopResult]: For program point L287-2(lines 211 592) no Hoare annotation was computed. [2020-10-27 15:02:09,585 INFO L274 CegarLoopResult]: For program point L188(lines 188 602) no Hoare annotation was computed. [2020-10-27 15:02:09,585 INFO L274 CegarLoopResult]: For program point L155(lines 155 613) no Hoare annotation was computed. [2020-10-27 15:02:09,585 INFO L274 CegarLoopResult]: For program point L122(lines 122 624) no Hoare annotation was computed. [2020-10-27 15:02:09,585 INFO L274 CegarLoopResult]: For program point ssl3_acceptEXIT(lines 12 680) no Hoare annotation was computed. [2020-10-27 15:02:09,585 INFO L274 CegarLoopResult]: For program point L387(lines 387 418) no Hoare annotation was computed. [2020-10-27 15:02:09,585 INFO L274 CegarLoopResult]: For program point L354(lines 354 374) no Hoare annotation was computed. [2020-10-27 15:02:09,585 INFO L270 CegarLoopResult]: At program point L123(lines 119 625) the Hoare annotation is: (let ((.cse0 (<= 8480 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8496))) (or (and .cse0 .cse1 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2)))) [2020-10-27 15:02:09,586 INFO L274 CegarLoopResult]: For program point L388(lines 388 394) no Hoare annotation was computed. [2020-10-27 15:02:09,586 INFO L274 CegarLoopResult]: For program point L554(lines 554 558) no Hoare annotation was computed. [2020-10-27 15:02:09,586 INFO L274 CegarLoopResult]: For program point L521(lines 521 526) no Hoare annotation was computed. [2020-10-27 15:02:09,586 INFO L274 CegarLoopResult]: For program point L356(lines 356 360) no Hoare annotation was computed. [2020-10-27 15:02:09,586 INFO L274 CegarLoopResult]: For program point L323-1(lines 323 332) no Hoare annotation was computed. [2020-10-27 15:02:09,586 INFO L274 CegarLoopResult]: For program point L356-2(lines 354 372) no Hoare annotation was computed. [2020-10-27 15:02:09,586 INFO L274 CegarLoopResult]: For program point L191(lines 191 601) no Hoare annotation was computed. [2020-10-27 15:02:09,586 INFO L274 CegarLoopResult]: For program point L158(lines 158 612) no Hoare annotation was computed. [2020-10-27 15:02:09,586 INFO L274 CegarLoopResult]: For program point L125(lines 125 623) no Hoare annotation was computed. [2020-10-27 15:02:09,586 INFO L274 CegarLoopResult]: For program point ssl3_acceptFINAL(lines 12 680) no Hoare annotation was computed. [2020-10-27 15:02:09,587 INFO L270 CegarLoopResult]: At program point L555(lines 67 679) the Hoare annotation is: false [2020-10-27 15:02:09,587 INFO L274 CegarLoopResult]: For program point L489(lines 489 493) no Hoare annotation was computed. [2020-10-27 15:02:09,587 INFO L270 CegarLoopResult]: At program point L192(lines 188 602) the Hoare annotation is: (let ((.cse0 (<= 8480 ssl3_accept_~s__state~0))) (or (and .cse0 (not (= ssl3_accept_~s__hit~0 0))) (and .cse0 (<= ssl3_accept_~s__state~0 8672) (<= ssl3_accept_~blastFlag~0 2)))) [2020-10-27 15:02:09,587 INFO L270 CegarLoopResult]: At program point L159(lines 155 613) the Hoare annotation is: (let ((.cse0 (<= 8480 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8560))) (or (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-27 15:02:09,587 INFO L270 CegarLoopResult]: At program point L126(lines 125 623) the Hoare annotation is: (<= ssl3_accept_~s__state~0 8496) [2020-10-27 15:02:09,587 INFO L274 CegarLoopResult]: For program point L457(lines 457 461) no Hoare annotation was computed. [2020-10-27 15:02:09,587 INFO L274 CegarLoopResult]: For program point L194(lines 194 600) no Hoare annotation was computed. [2020-10-27 15:02:09,587 INFO L274 CegarLoopResult]: For program point L161(lines 161 611) no Hoare annotation was computed. [2020-10-27 15:02:09,587 INFO L274 CegarLoopResult]: For program point L128(lines 128 622) no Hoare annotation was computed. [2020-10-27 15:02:09,588 INFO L274 CegarLoopResult]: For program point L327(lines 327 331) no Hoare annotation was computed. [2020-10-27 15:02:09,588 INFO L270 CegarLoopResult]: At program point L593(lines 101 661) the Hoare annotation is: (let ((.cse3 (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse0 (<= 8480 ssl3_accept_~s__state~0)) (.cse2 (<= ssl3_accept_~blastFlag~0 2)) (.cse5 (<= 8448 ssl3_accept_~s__state~0)) (.cse6 (= 8482 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse1 (<= ssl3_accept_~s__state~0 8672)) (.cse4 (<= ssl3_accept_~blastFlag~0 3))) (or (and .cse0 .cse1 .cse2 .cse3) (and (not (= ssl3_accept_~s__hit~0 0)) .cse4) (and .cse5 .cse2 .cse3 (<= ssl3_accept_~s__state~0 8608)) (and .cse6 (= ssl3_accept_~s__state~0 8482)) (and .cse2 (= ssl3_accept_~s__state~0 8656)) (<= ssl3_accept_~s__state~0 3) (and .cse0 (<= ssl3_accept_~s__state~0 8560) .cse2) (<= ssl3_accept_~blastFlag~0 0) (and .cse5 (or (and .cse6 .cse4) (and .cse4 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3))) (<= ssl3_accept_~s__state~0 8448)) (and .cse1 .cse4 (<= 8672 ssl3_accept_~s__state~0)))) [2020-10-27 15:02:09,588 INFO L274 CegarLoopResult]: For program point L560(lines 560 564) no Hoare annotation was computed. [2020-10-27 15:02:09,588 INFO L274 CegarLoopResult]: For program point L428(lines 428 432) no Hoare annotation was computed. [2020-10-27 15:02:09,588 INFO L270 CegarLoopResult]: At program point L362(lines 344 380) the Hoare annotation is: (let ((.cse0 (<= 8480 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8560))) (or (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-27 15:02:09,588 INFO L274 CegarLoopResult]: For program point L197(lines 197 599) no Hoare annotation was computed. [2020-10-27 15:02:09,588 INFO L274 CegarLoopResult]: For program point L164(lines 164 610) no Hoare annotation was computed. [2020-10-27 15:02:09,589 INFO L274 CegarLoopResult]: For program point L131(lines 131 621) no Hoare annotation was computed. [2020-10-27 15:02:09,589 INFO L274 CegarLoopResult]: For program point L528(lines 528 532) no Hoare annotation was computed. [2020-10-27 15:02:09,589 INFO L274 CegarLoopResult]: For program point L462(lines 462 473) no Hoare annotation was computed. [2020-10-27 15:02:09,589 INFO L274 CegarLoopResult]: For program point L528-2(lines 211 592) no Hoare annotation was computed. [2020-10-27 15:02:09,589 INFO L270 CegarLoopResult]: At program point L396(lines 387 418) the Hoare annotation is: (let ((.cse0 (<= 8480 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8560))) (or (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-27 15:02:09,589 INFO L274 CegarLoopResult]: For program point L231(lines 231 242) no Hoare annotation was computed. [2020-10-27 15:02:09,589 INFO L270 CegarLoopResult]: At program point L198(lines 194 600) the Hoare annotation is: (let ((.cse0 (<= 8480 ssl3_accept_~s__state~0))) (or (and .cse0 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 (<= ssl3_accept_~s__state~0 8672) (<= ssl3_accept_~blastFlag~0 2)))) [2020-10-27 15:02:09,589 INFO L270 CegarLoopResult]: At program point L165(lines 161 611) the Hoare annotation is: (let ((.cse0 (<= 8480 ssl3_accept_~s__state~0))) (or (and .cse0 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 (<= ssl3_accept_~blastFlag~0 2) (<= ssl3_accept_~s__state~0 8608)))) [2020-10-27 15:02:09,589 INFO L274 CegarLoopResult]: For program point L231-2(lines 231 242) no Hoare annotation was computed. [2020-10-27 15:02:09,590 INFO L274 CegarLoopResult]: For program point L364(lines 364 368) no Hoare annotation was computed. [2020-10-27 15:02:09,590 INFO L277 CegarLoopResult]: At program point L662(lines 100 663) the Hoare annotation is: true [2020-10-27 15:02:09,590 INFO L274 CegarLoopResult]: For program point L398(lines 398 404) no Hoare annotation was computed. [2020-10-27 15:02:09,590 INFO L274 CegarLoopResult]: For program point L233(lines 233 238) no Hoare annotation was computed. [2020-10-27 15:02:09,590 INFO L274 CegarLoopResult]: For program point L200(lines 200 598) no Hoare annotation was computed. [2020-10-27 15:02:09,590 INFO L274 CegarLoopResult]: For program point L167(lines 167 609) no Hoare annotation was computed. [2020-10-27 15:02:09,590 INFO L274 CegarLoopResult]: For program point L134(lines 134 620) no Hoare annotation was computed. [2020-10-27 15:02:09,590 INFO L270 CegarLoopResult]: At program point L101-2(lines 101 661) the Hoare annotation is: (let ((.cse3 (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse0 (<= 8480 ssl3_accept_~s__state~0)) (.cse2 (<= ssl3_accept_~blastFlag~0 2)) (.cse5 (<= 8448 ssl3_accept_~s__state~0)) (.cse6 (= 8482 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse1 (<= ssl3_accept_~s__state~0 8672)) (.cse4 (<= ssl3_accept_~blastFlag~0 3))) (or (and .cse0 .cse1 .cse2 .cse3) (and (not (= ssl3_accept_~s__hit~0 0)) .cse4) (and .cse5 .cse2 .cse3 (<= ssl3_accept_~s__state~0 8608)) (and .cse6 (= ssl3_accept_~s__state~0 8482)) (and .cse2 (= ssl3_accept_~s__state~0 8656)) (<= ssl3_accept_~s__state~0 3) (and .cse0 (<= ssl3_accept_~s__state~0 8560) .cse2) (<= ssl3_accept_~blastFlag~0 0) (and .cse5 (or (and .cse6 .cse4) (and .cse4 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3))) (<= ssl3_accept_~s__state~0 8448)) (and .cse1 .cse4 (<= 8672 ssl3_accept_~s__state~0)))) [2020-10-27 15:02:09,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:02:09 BoogieIcfgContainer [2020-10-27 15:02:09,618 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:02:09,619 INFO L168 Benchmark]: Toolchain (without parser) took 60866.85 ms. Allocated memory was 151.0 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 106.5 MB in the beginning and 1.0 GB in the end (delta: -938.5 MB). Peak memory consumption was 683.5 MB. Max. memory is 8.0 GB. [2020-10-27 15:02:09,619 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 151.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:02:09,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 558.11 ms. Allocated memory is still 151.0 MB. Free memory was 105.9 MB in the beginning and 130.8 MB in the end (delta: -24.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 8.0 GB. [2020-10-27 15:02:09,620 INFO L168 Benchmark]: Boogie Preprocessor took 111.99 ms. Allocated memory is still 151.0 MB. Free memory was 130.8 MB in the beginning and 128.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 15:02:09,621 INFO L168 Benchmark]: RCFGBuilder took 1149.84 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 128.2 MB in the beginning and 158.1 MB in the end (delta: -29.8 MB). Peak memory consumption was 45.9 MB. Max. memory is 8.0 GB. [2020-10-27 15:02:09,621 INFO L168 Benchmark]: TraceAbstraction took 59035.86 ms. Allocated memory was 186.6 MB in the beginning and 1.2 GB in the end (delta: 981.5 MB). Free memory was 158.1 MB in the beginning and 1.0 GB in the end (delta: -886.9 MB). Peak memory consumption was 697.9 MB. Max. memory is 8.0 GB. [2020-10-27 15:02:09,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 151.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 558.11 ms. Allocated memory is still 151.0 MB. Free memory was 105.9 MB in the beginning and 130.8 MB in the end (delta: -24.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 111.99 ms. Allocated memory is still 151.0 MB. Free memory was 130.8 MB in the beginning and 128.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1149.84 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 128.2 MB in the beginning and 158.1 MB in the end (delta: -29.8 MB). Peak memory consumption was 45.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 59035.86 ms. Allocated memory was 186.6 MB in the beginning and 1.2 GB in the end (delta: 981.5 MB). Free memory was 158.1 MB in the beginning and 1.0 GB in the end (delta: -886.9 MB). Peak memory consumption was 697.9 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: ((8480 <= s__state && s__state <= 8560) && blastFlag <= 2) || (((8480 <= s__state && s__state <= 8560) && !(s__hit == 0)) && blastFlag <= 3) - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: ((blastFlag <= 0 && 8672 <= s__state) || ((s__state <= 8672 && blastFlag <= 3) && 8672 <= s__state)) || ((!(s__hit == 0) && blastFlag <= 3) && 8672 <= s__state) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: ((8480 <= s__state && s__state <= 8560) && blastFlag <= 2) || (((8480 <= s__state && s__state <= 8560) && !(s__hit == 0)) && blastFlag <= 3) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: ((((8480 <= s__state && s__state <= 8672) && blastFlag <= 2) && 8576 == s__s3__tmp__next_state___0) || ((8480 <= s__state && !(s__hit == 0)) && blastFlag <= 3)) || ((8480 <= s__state && s__state <= 8672) && blastFlag <= 0) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: ((s__state <= 8496 && !(s__hit == 0)) && blastFlag <= 3) || (((8448 <= s__state && s__state <= 8496) && blastFlag <= 2) && blastFlag <= 3) - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (((((s__state <= 8496 && !(s__hit == 0)) && blastFlag <= 3) || ((8448 <= s__state && s__state <= 8448) && blastFlag <= 0)) || (8482 == s__s3__tmp__next_state___0 && s__state <= 8496)) || (((8448 <= s__state && blastFlag <= 2) && s__state <= 8448) && 8576 == s__s3__tmp__next_state___0)) || (s__state <= 8496 && s__s3__tmp__next_state___0 <= 3) - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: s__state <= 8496 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: ((8480 <= s__state && s__state <= 8560) && blastFlag <= 2) || (((8480 <= s__state && s__state <= 8560) && !(s__hit == 0)) && blastFlag <= 3) - InvariantResult [Line: 344]: Loop Invariant Derived loop invariant: ((8480 <= s__state && s__state <= 8560) && blastFlag <= 2) || (((8480 <= s__state && s__state <= 8560) && !(s__hit == 0)) && blastFlag <= 3) - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: (8480 <= s__state && !(s__hit == 0)) || ((8480 <= s__state && s__state <= 8672) && blastFlag <= 2) - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: ((((s__state <= 8496 && !(s__hit == 0)) && blastFlag <= 3) || (blastFlag <= 0 && 8672 <= s__state)) || (s__state <= 8448 && blastFlag <= 0)) || ((!(s__hit == 0) && blastFlag <= 3) && 8672 <= s__state) - InvariantResult [Line: 397]: Loop Invariant Derived loop invariant: ((8480 <= s__state && s__state <= 8560) && blastFlag <= 2) || (((8480 <= s__state && s__state <= 8560) && !(s__hit == 0)) && blastFlag <= 3) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((8480 <= s__state && s__state <= 8528) && blastFlag <= 2) || (((8480 <= s__state && s__state <= 8528) && !(s__hit == 0)) && blastFlag <= 3) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((((((((((8480 <= s__state && s__state <= 8672) && blastFlag <= 2) && 8576 == s__s3__tmp__next_state___0) || (!(s__hit == 0) && blastFlag <= 3)) || (((8448 <= s__state && blastFlag <= 2) && 8576 == s__s3__tmp__next_state___0) && s__state <= 8608)) || (8482 == s__s3__tmp__next_state___0 && s__state == 8482)) || (blastFlag <= 2 && s__state == 8656)) || s__state <= 3) || ((8480 <= s__state && s__state <= 8560) && blastFlag <= 2)) || blastFlag <= 0) || ((8448 <= s__state && ((8482 == s__s3__tmp__next_state___0 && blastFlag <= 3) || (blastFlag <= 3 && s__s3__tmp__next_state___0 <= 3))) && s__state <= 8448)) || ((s__state <= 8672 && blastFlag <= 3) && 8672 <= s__state) - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: (((8480 <= s__state && !(s__hit == 0)) && blastFlag <= 3) || ((8480 <= s__state && blastFlag <= 0) && s__state <= 8608)) || (((8480 <= s__state && blastFlag <= 2) && 8576 == s__s3__tmp__next_state___0) && s__state <= 8608) - 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: ((8480 <= s__state && !(s__hit == 0)) && blastFlag <= 3) || ((8480 <= s__state && blastFlag <= 2) && s__state <= 8608) - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: (((8480 <= s__state && s__state <= 8496) && !(s__hit == 0)) && blastFlag <= 3) || ((8480 <= s__state && s__state <= 8496) && blastFlag <= 2) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: ((8480 <= s__state && !(s__hit == 0)) && blastFlag <= 3) || ((8480 <= s__state && s__state <= 8672) && blastFlag <= 2) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((((((((((8480 <= s__state && s__state <= 8672) && blastFlag <= 2) && 8576 == s__s3__tmp__next_state___0) || (!(s__hit == 0) && blastFlag <= 3)) || (((8448 <= s__state && blastFlag <= 2) && 8576 == s__s3__tmp__next_state___0) && s__state <= 8608)) || (8482 == s__s3__tmp__next_state___0 && s__state == 8482)) || (blastFlag <= 2 && s__state == 8656)) || s__state <= 3) || ((8480 <= s__state && s__state <= 8560) && blastFlag <= 2)) || blastFlag <= 0) || ((8448 <= s__state && ((8482 == s__s3__tmp__next_state___0 && blastFlag <= 3) || (blastFlag <= 3 && s__s3__tmp__next_state___0 <= 3))) && s__state <= 8448)) || ((s__state <= 8672 && blastFlag <= 3) && 8672 <= s__state) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: ((8480 <= s__state && s__state <= 8528) && blastFlag <= 2) || (((8480 <= s__state && s__state <= 8528) && !(s__hit == 0)) && blastFlag <= 3) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: (blastFlag <= 0 && 12292 == s__state) || ((!(s__hit == 0) && blastFlag <= 3) && 8672 <= s__state) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: (((8480 <= s__state && !(s__hit == 0)) && blastFlag <= 3) || ((8480 <= s__state && blastFlag <= 0) && s__state <= 8608)) || (((8480 <= s__state && blastFlag <= 2) && 8576 == s__s3__tmp__next_state___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: 50.0s, OverallIterations: 26, TraceHistogramMax: 24, AutomataDifference: 24.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6015 SDtfs, 7610 SDslu, 235 SDs, 0 SdLazy, 6292 SolverSat, 686 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3474occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 26 MinimizatonAttempts, 3220 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 59 PreInvPairs, 323 NumberOfFragments, 766 HoareAnnotationTreeSize, 59 FomulaSimplifications, 77733 FormulaSimplificationTreeSizeReduction, 2.1s HoareSimplificationTime, 34 FomulaSimplificationsInter, 7855 FormulaSimplificationTreeSizeReductionInter, 6.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 20.3s InterpolantComputationTime, 7736 NumberOfCodeBlocks, 7736 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 7710 ConstructedInterpolants, 0 QuantifiedInterpolants, 4117131 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 23 PerfectInterpolantSequences, 35042/35120 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...