/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/loop-invgen/apache-get-tag.i.p+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:40:50,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:40:50,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:40:50,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:40:50,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:40:50,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:40:50,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:40:50,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:40:50,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:40:50,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:40:50,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:40:50,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:40:50,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:40:50,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:40:50,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:40:50,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:40:50,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:40:50,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:40:50,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:40:50,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:40:50,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:40:50,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:40:50,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:40:50,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:40:50,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:40:50,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:40:50,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:40:50,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:40:50,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:40:50,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:40:50,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:40:50,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:40:50,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:40:50,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:40:50,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:40:50,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:40:50,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:40:50,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:40:50,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:40:50,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:40:50,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:40:50,555 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 [2020-10-29 09:40:50,612 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:40:50,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:40:50,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:40:50,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:40:50,618 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:40:50,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:40:50,619 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:40:50,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:40:50,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:40:50,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:40:50,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:40:50,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:40:50,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:40:50,621 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:40:50,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:40:50,621 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:40:50,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:40:50,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:40:50,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:40:50,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:40:50,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:40:50,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:40:50,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:40:50,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:40:50,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:40:50,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:40:50,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:40:50,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:40:50,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:40:50,625 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:40:51,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:40:51,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:40:51,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:40:51,101 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:40:51,102 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:40:51,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2020-10-29 09:40:51,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fa5411c0/97cd995bcb8d4780ac5c0c400ab83ec7/FLAGaeecf4769 [2020-10-29 09:40:51,887 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:40:51,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2020-10-29 09:40:51,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fa5411c0/97cd995bcb8d4780ac5c0c400ab83ec7/FLAGaeecf4769 [2020-10-29 09:40:52,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fa5411c0/97cd995bcb8d4780ac5c0c400ab83ec7 [2020-10-29 09:40:52,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:40:52,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:40:52,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:40:52,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:40:52,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:40:52,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:40:52" (1/1) ... [2020-10-29 09:40:52,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a08ed49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:52, skipping insertion in model container [2020-10-29 09:40:52,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:40:52" (1/1) ... [2020-10-29 09:40:52,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:40:52,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:40:52,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:40:52,850 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:40:53,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:40:53,157 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:40:53,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:53 WrapperNode [2020-10-29 09:40:53,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:40:53,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:40:53,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:40:53,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:40:53,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:53" (1/1) ... [2020-10-29 09:40:53,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:53" (1/1) ... [2020-10-29 09:40:53,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:53" (1/1) ... [2020-10-29 09:40:53,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:53" (1/1) ... [2020-10-29 09:40:53,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:53" (1/1) ... [2020-10-29 09:40:53,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:53" (1/1) ... [2020-10-29 09:40:53,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:53" (1/1) ... [2020-10-29 09:40:53,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:40:53,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:40:53,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:40:53,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:40:53,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:53" (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 [2020-10-29 09:40:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:40:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:40:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:40:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 09:40:53,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:40:53,410 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:40:53,410 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:40:53,410 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:40:53,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:40:53,410 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 09:40:53,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 09:40:53,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 09:40:53,411 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:40:53,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:40:53,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:40:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:40:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:40:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:40:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:40:54,953 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:40:54,954 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-29 09:40:54,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:40:54 BoogieIcfgContainer [2020-10-29 09:40:54,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:40:54,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:40:54,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:40:54,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:40:54,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:40:52" (1/3) ... [2020-10-29 09:40:54,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6113f818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:40:54, skipping insertion in model container [2020-10-29 09:40:54,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:53" (2/3) ... [2020-10-29 09:40:54,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6113f818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:40:54, skipping insertion in model container [2020-10-29 09:40:54,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:40:54" (3/3) ... [2020-10-29 09:40:54,965 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+nlh-reducer.c [2020-10-29 09:40:54,978 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:40:54,984 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:40:54,998 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:40:55,030 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:40:55,030 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:40:55,030 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:40:55,030 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:40:55,031 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:40:55,031 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:40:55,031 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:40:55,031 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:40:55,056 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states. [2020-10-29 09:40:55,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-29 09:40:55,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:40:55,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:40:55,063 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:40:55,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:40:55,070 INFO L82 PathProgramCache]: Analyzing trace with hash -576203994, now seen corresponding path program 1 times [2020-10-29 09:40:55,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:40:55,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099056460] [2020-10-29 09:40:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:40:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:55,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:55,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:55,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 09:40:55,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:55,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-29 09:40:55,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:55,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:55,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 09:40:55,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 09:40:55,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 09:40:55,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 09:40:55,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:40:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:55,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:55,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:55,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:40:55,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:55,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 09:40:55,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:55,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:55,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:55,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:55,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:55,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:55,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:40:55,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099056460] [2020-10-29 09:40:55,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:40:55,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 09:40:55,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848492744] [2020-10-29 09:40:55,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 09:40:55,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:40:55,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 09:40:55,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:40:55,690 INFO L87 Difference]: Start difference. First operand 313 states. Second operand 5 states. [2020-10-29 09:40:57,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:40:57,759 INFO L93 Difference]: Finished difference Result 332 states and 610 transitions. [2020-10-29 09:40:57,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 09:40:57,764 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-29 09:40:57,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:40:57,779 INFO L225 Difference]: With dead ends: 332 [2020-10-29 09:40:57,779 INFO L226 Difference]: Without dead ends: 293 [2020-10-29 09:40:57,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-29 09:40:57,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-29 09:40:57,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 289. [2020-10-29 09:40:57,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-10-29 09:40:57,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 426 transitions. [2020-10-29 09:40:57,860 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 426 transitions. Word has length 12 [2020-10-29 09:40:57,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:40:57,861 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 426 transitions. [2020-10-29 09:40:57,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 09:40:57,861 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 426 transitions. [2020-10-29 09:40:57,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-29 09:40:57,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:40:57,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:40:57,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:40:57,863 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:40:57,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:40:57,864 INFO L82 PathProgramCache]: Analyzing trace with hash -683488697, now seen corresponding path program 1 times [2020-10-29 09:40:57,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:40:57,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11364444] [2020-10-29 09:40:57,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:40:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:57,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-29 09:40:58,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:40:58,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-29 09:40:58,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 09:40:58,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 09:40:58,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 09:40:58,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 09:40:58,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:40:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:40:58,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 09:40:58,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:58,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:58,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:58,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 09:40:58,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:40:58,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11364444] [2020-10-29 09:40:58,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:40:58,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 09:40:58,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969293645] [2020-10-29 09:40:58,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 09:40:58,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:40:58,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 09:40:58,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:40:58,237 INFO L87 Difference]: Start difference. First operand 289 states and 426 transitions. Second operand 5 states. [2020-10-29 09:40:59,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:40:59,678 INFO L93 Difference]: Finished difference Result 294 states and 430 transitions. [2020-10-29 09:40:59,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 09:40:59,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-29 09:40:59,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:40:59,688 INFO L225 Difference]: With dead ends: 294 [2020-10-29 09:40:59,688 INFO L226 Difference]: Without dead ends: 285 [2020-10-29 09:40:59,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-29 09:40:59,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-29 09:40:59,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2020-10-29 09:40:59,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-10-29 09:40:59,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 361 transitions. [2020-10-29 09:40:59,735 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 361 transitions. Word has length 13 [2020-10-29 09:40:59,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:40:59,736 INFO L481 AbstractCegarLoop]: Abstraction has 285 states and 361 transitions. [2020-10-29 09:40:59,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 09:40:59,736 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 361 transitions. [2020-10-29 09:40:59,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-29 09:40:59,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:40:59,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:40:59,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:40:59,739 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:40:59,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:40:59,739 INFO L82 PathProgramCache]: Analyzing trace with hash -179739162, now seen corresponding path program 1 times [2020-10-29 09:40:59,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:40:59,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366178748] [2020-10-29 09:40:59,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:40:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-29 09:40:59,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 09:40:59,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 09:40:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 09:40:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 09:40:59,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:59,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:40:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:40:59,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 09:40:59,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:59,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:59,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:59,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:40:59,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366178748] [2020-10-29 09:40:59,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:40:59,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 09:40:59,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952654593] [2020-10-29 09:40:59,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 09:40:59,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:40:59,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 09:40:59,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:40:59,902 INFO L87 Difference]: Start difference. First operand 285 states and 361 transitions. Second operand 5 states. [2020-10-29 09:41:01,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:01,065 INFO L93 Difference]: Finished difference Result 287 states and 362 transitions. [2020-10-29 09:41:01,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 09:41:01,065 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-29 09:41:01,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:01,068 INFO L225 Difference]: With dead ends: 287 [2020-10-29 09:41:01,068 INFO L226 Difference]: Without dead ends: 284 [2020-10-29 09:41:01,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:41:01,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-10-29 09:41:01,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2020-10-29 09:41:01,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-10-29 09:41:01,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 359 transitions. [2020-10-29 09:41:01,086 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 359 transitions. Word has length 13 [2020-10-29 09:41:01,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:01,086 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 359 transitions. [2020-10-29 09:41:01,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 09:41:01,086 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 359 transitions. [2020-10-29 09:41:01,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-29 09:41:01,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:01,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:41:01,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 09:41:01,087 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:01,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:01,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1277965293, now seen corresponding path program 1 times [2020-10-29 09:41:01,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:01,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434537692] [2020-10-29 09:41:01,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:01,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:01,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:01,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 09:41:01,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:01,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 09:41:01,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:01,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:01,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 09:41:01,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 09:41:01,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:41:01,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:01,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:01,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:01,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:01,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:01,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:01,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 09:41:01,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:01,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:01,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:01,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:01,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:01,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:01,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:01,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434537692] [2020-10-29 09:41:01,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:01,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 09:41:01,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814541796] [2020-10-29 09:41:01,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 09:41:01,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:01,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 09:41:01,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:41:01,242 INFO L87 Difference]: Start difference. First operand 284 states and 359 transitions. Second operand 5 states. [2020-10-29 09:41:02,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:02,398 INFO L93 Difference]: Finished difference Result 316 states and 403 transitions. [2020-10-29 09:41:02,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 09:41:02,403 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-29 09:41:02,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:02,405 INFO L225 Difference]: With dead ends: 316 [2020-10-29 09:41:02,405 INFO L226 Difference]: Without dead ends: 313 [2020-10-29 09:41:02,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:41:02,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-10-29 09:41:02,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 287. [2020-10-29 09:41:02,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-10-29 09:41:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 362 transitions. [2020-10-29 09:41:02,419 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 362 transitions. Word has length 14 [2020-10-29 09:41:02,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:02,420 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 362 transitions. [2020-10-29 09:41:02,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 09:41:02,420 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 362 transitions. [2020-10-29 09:41:02,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-29 09:41:02,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:02,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:41:02,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 09:41:02,421 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:02,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:02,422 INFO L82 PathProgramCache]: Analyzing trace with hash 203473271, now seen corresponding path program 1 times [2020-10-29 09:41:02,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:02,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885110972] [2020-10-29 09:41:02,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:02,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:02,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:02,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:02,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-29 09:41:02,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:41:02,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-29 09:41:02,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:02,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:02,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 09:41:02,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 09:41:02,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 09:41:02,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 09:41:02,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:02,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:02,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:02,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:02,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:02,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 09:41:02,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:02,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:02,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:02,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:02,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:02,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:41:02,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:02,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885110972] [2020-10-29 09:41:02,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:02,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 09:41:02,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259542656] [2020-10-29 09:41:02,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 09:41:02,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:02,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 09:41:02,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:41:02,896 INFO L87 Difference]: Start difference. First operand 287 states and 362 transitions. Second operand 5 states. [2020-10-29 09:41:03,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:03,856 INFO L93 Difference]: Finished difference Result 289 states and 363 transitions. [2020-10-29 09:41:03,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 09:41:03,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-29 09:41:03,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:03,858 INFO L225 Difference]: With dead ends: 289 [2020-10-29 09:41:03,858 INFO L226 Difference]: Without dead ends: 286 [2020-10-29 09:41:03,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:41:03,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-29 09:41:03,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-10-29 09:41:03,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-10-29 09:41:03,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 360 transitions. [2020-10-29 09:41:03,871 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 360 transitions. Word has length 16 [2020-10-29 09:41:03,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:03,872 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 360 transitions. [2020-10-29 09:41:03,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 09:41:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 360 transitions. [2020-10-29 09:41:03,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-29 09:41:03,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:03,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:41:03,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 09:41:03,873 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:03,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:03,874 INFO L82 PathProgramCache]: Analyzing trace with hash 2011697194, now seen corresponding path program 1 times [2020-10-29 09:41:03,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:03,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514061012] [2020-10-29 09:41:03,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:03,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:03,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:03,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:04,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:04,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 09:41:04,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 09:41:04,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-29 09:41:04,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:04,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:04,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:41:04,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 09:41:04,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 09:41:04,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:04,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:04,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:04,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:04,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:04,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:04,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 09:41:04,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:04,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:04,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 09:41:04,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:04,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514061012] [2020-10-29 09:41:04,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:04,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 09:41:04,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524282014] [2020-10-29 09:41:04,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 09:41:04,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:04,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 09:41:04,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 09:41:04,300 INFO L87 Difference]: Start difference. First operand 286 states and 360 transitions. Second operand 6 states. [2020-10-29 09:41:05,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:05,680 INFO L93 Difference]: Finished difference Result 288 states and 361 transitions. [2020-10-29 09:41:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:41:05,682 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-29 09:41:05,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:05,684 INFO L225 Difference]: With dead ends: 288 [2020-10-29 09:41:05,685 INFO L226 Difference]: Without dead ends: 283 [2020-10-29 09:41:05,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-29 09:41:05,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-10-29 09:41:05,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2020-10-29 09:41:05,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-10-29 09:41:05,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 356 transitions. [2020-10-29 09:41:05,696 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 356 transitions. Word has length 17 [2020-10-29 09:41:05,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:05,697 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 356 transitions. [2020-10-29 09:41:05,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 09:41:05,697 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 356 transitions. [2020-10-29 09:41:05,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-29 09:41:05,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:05,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:41:05,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 09:41:05,698 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:05,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:05,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1651686570, now seen corresponding path program 1 times [2020-10-29 09:41:05,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:05,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554037769] [2020-10-29 09:41:05,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:05,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:05,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:05,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:05,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 09:41:05,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:41:05,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-29 09:41:05,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:05,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:05,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:41:05,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 09:41:05,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:41:05,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:05,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:05,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:05,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:05,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:05,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:05,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 09:41:05,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:05,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:05,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:05,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:05,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554037769] [2020-10-29 09:41:05,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:05,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 09:41:05,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051247027] [2020-10-29 09:41:05,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 09:41:05,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:05,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 09:41:05,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 09:41:05,936 INFO L87 Difference]: Start difference. First operand 283 states and 356 transitions. Second operand 6 states. [2020-10-29 09:41:07,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:07,250 INFO L93 Difference]: Finished difference Result 298 states and 376 transitions. [2020-10-29 09:41:07,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:41:07,254 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-29 09:41:07,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:07,257 INFO L225 Difference]: With dead ends: 298 [2020-10-29 09:41:07,257 INFO L226 Difference]: Without dead ends: 295 [2020-10-29 09:41:07,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-29 09:41:07,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-29 09:41:07,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 282. [2020-10-29 09:41:07,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-29 09:41:07,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 354 transitions. [2020-10-29 09:41:07,277 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 354 transitions. Word has length 18 [2020-10-29 09:41:07,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:07,278 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 354 transitions. [2020-10-29 09:41:07,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 09:41:07,278 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 354 transitions. [2020-10-29 09:41:07,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-29 09:41:07,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:07,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:41:07,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 09:41:07,282 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:07,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:07,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1603972548, now seen corresponding path program 1 times [2020-10-29 09:41:07,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:07,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364710337] [2020-10-29 09:41:07,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:07,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:07,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:07,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:07,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 09:41:07,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:41:07,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-29 09:41:07,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:07,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:07,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:41:07,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 09:41:07,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:41:07,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:07,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:07,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:07,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:07,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:07,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:07,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 09:41:07,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:07,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:07,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:07,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:07,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:07,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 09:41:07,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:07,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [364710337] [2020-10-29 09:41:07,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:07,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 09:41:07,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642562278] [2020-10-29 09:41:07,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 09:41:07,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:07,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 09:41:07,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 09:41:07,530 INFO L87 Difference]: Start difference. First operand 282 states and 354 transitions. Second operand 6 states. [2020-10-29 09:41:08,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:08,807 INFO L93 Difference]: Finished difference Result 284 states and 355 transitions. [2020-10-29 09:41:08,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:41:08,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-29 09:41:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:08,809 INFO L225 Difference]: With dead ends: 284 [2020-10-29 09:41:08,809 INFO L226 Difference]: Without dead ends: 281 [2020-10-29 09:41:08,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-29 09:41:08,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-29 09:41:08,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-10-29 09:41:08,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-29 09:41:08,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 352 transitions. [2020-10-29 09:41:08,820 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 352 transitions. Word has length 18 [2020-10-29 09:41:08,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:08,820 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 352 transitions. [2020-10-29 09:41:08,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 09:41:08,821 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 352 transitions. [2020-10-29 09:41:08,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-29 09:41:08,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:08,828 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:41:08,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 09:41:08,828 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:08,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:08,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1344314020, now seen corresponding path program 1 times [2020-10-29 09:41:08,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:08,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036854279] [2020-10-29 09:41:08,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:08,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:08,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:09,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:09,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 09:41:09,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:41:09,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-29 09:41:09,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:09,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:41:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 09:41:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 09:41:09,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:09,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:09,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:09,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:09,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:09,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:09,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 09:41:09,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:09,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:09,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:09,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:09,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036854279] [2020-10-29 09:41:09,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:09,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 09:41:09,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52170734] [2020-10-29 09:41:09,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 09:41:09,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:09,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 09:41:09,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:41:09,231 INFO L87 Difference]: Start difference. First operand 281 states and 352 transitions. Second operand 7 states. [2020-10-29 09:41:09,440 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-10-29 09:41:10,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:10,809 INFO L93 Difference]: Finished difference Result 283 states and 353 transitions. [2020-10-29 09:41:10,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 09:41:10,810 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-29 09:41:10,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:10,812 INFO L225 Difference]: With dead ends: 283 [2020-10-29 09:41:10,812 INFO L226 Difference]: Without dead ends: 280 [2020-10-29 09:41:10,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-29 09:41:10,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-29 09:41:10,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 277. [2020-10-29 09:41:10,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-29 09:41:10,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 347 transitions. [2020-10-29 09:41:10,823 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 347 transitions. Word has length 18 [2020-10-29 09:41:10,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:10,824 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 347 transitions. [2020-10-29 09:41:10,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 09:41:10,824 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 347 transitions. [2020-10-29 09:41:10,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-29 09:41:10,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:10,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:41:10,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 09:41:10,825 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:10,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:10,825 INFO L82 PathProgramCache]: Analyzing trace with hash 378659902, now seen corresponding path program 1 times [2020-10-29 09:41:10,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:10,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727372303] [2020-10-29 09:41:10,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:10,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:10,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:11,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:11,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 09:41:11,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:41:11,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-29 09:41:11,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:11,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:11,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:41:11,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 09:41:11,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 09:41:11,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:11,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:11,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:11,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:11,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:11,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:11,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:41:11,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:11,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:11,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:11,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:11,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:11,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:11,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:11,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727372303] [2020-10-29 09:41:11,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:11,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 09:41:11,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850694866] [2020-10-29 09:41:11,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 09:41:11,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:11,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 09:41:11,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 09:41:11,090 INFO L87 Difference]: Start difference. First operand 277 states and 347 transitions. Second operand 6 states. [2020-10-29 09:41:12,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:12,421 INFO L93 Difference]: Finished difference Result 298 states and 373 transitions. [2020-10-29 09:41:12,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:41:12,422 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-29 09:41:12,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:12,424 INFO L225 Difference]: With dead ends: 298 [2020-10-29 09:41:12,424 INFO L226 Difference]: Without dead ends: 295 [2020-10-29 09:41:12,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-29 09:41:12,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-29 09:41:12,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 276. [2020-10-29 09:41:12,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-29 09:41:12,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 345 transitions. [2020-10-29 09:41:12,435 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 345 transitions. Word has length 19 [2020-10-29 09:41:12,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:12,435 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 345 transitions. [2020-10-29 09:41:12,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 09:41:12,435 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 345 transitions. [2020-10-29 09:41:12,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-29 09:41:12,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:12,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:41:12,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 09:41:12,436 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:12,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:12,437 INFO L82 PathProgramCache]: Analyzing trace with hash 336332471, now seen corresponding path program 1 times [2020-10-29 09:41:12,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:12,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718609170] [2020-10-29 09:41:12,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:12,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:12,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:12,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:12,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 09:41:12,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:41:12,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-29 09:41:12,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:12,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:12,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:41:12,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 09:41:12,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:41:12,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:12,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:12,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:12,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:12,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:12,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:12,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:41:12,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:12,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:12,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:12,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:12,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:12,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:12,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718609170] [2020-10-29 09:41:12,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:12,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 09:41:12,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845911118] [2020-10-29 09:41:12,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 09:41:12,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:12,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 09:41:12,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:41:12,750 INFO L87 Difference]: Start difference. First operand 276 states and 345 transitions. Second operand 7 states. [2020-10-29 09:41:14,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:14,315 INFO L93 Difference]: Finished difference Result 290 states and 362 transitions. [2020-10-29 09:41:14,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 09:41:14,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-29 09:41:14,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:14,322 INFO L225 Difference]: With dead ends: 290 [2020-10-29 09:41:14,322 INFO L226 Difference]: Without dead ends: 287 [2020-10-29 09:41:14,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 09:41:14,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-29 09:41:14,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 275. [2020-10-29 09:41:14,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-10-29 09:41:14,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 343 transitions. [2020-10-29 09:41:14,334 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 343 transitions. Word has length 19 [2020-10-29 09:41:14,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:14,334 INFO L481 AbstractCegarLoop]: Abstraction has 275 states and 343 transitions. [2020-10-29 09:41:14,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 09:41:14,334 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 343 transitions. [2020-10-29 09:41:14,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-29 09:41:14,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:14,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:41:14,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 09:41:14,335 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:14,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:14,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1815504043, now seen corresponding path program 1 times [2020-10-29 09:41:14,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:14,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [373787106] [2020-10-29 09:41:14,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:14,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:14,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:14,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:14,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 09:41:14,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:41:14,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-29 09:41:14,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:14,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:14,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:41:14,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 09:41:14,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 09:41:14,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:14,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:14,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:14,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:14,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:14,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:14,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:41:14,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:14,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:14,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:14,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:14,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:14,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:14,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:14,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [373787106] [2020-10-29 09:41:14,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:14,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 09:41:14,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55806938] [2020-10-29 09:41:14,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 09:41:14,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:14,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 09:41:14,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:41:14,666 INFO L87 Difference]: Start difference. First operand 275 states and 343 transitions. Second operand 7 states. [2020-10-29 09:41:16,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:16,199 INFO L93 Difference]: Finished difference Result 277 states and 344 transitions. [2020-10-29 09:41:16,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:41:16,200 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-29 09:41:16,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:16,202 INFO L225 Difference]: With dead ends: 277 [2020-10-29 09:41:16,203 INFO L226 Difference]: Without dead ends: 272 [2020-10-29 09:41:16,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 09:41:16,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-10-29 09:41:16,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2020-10-29 09:41:16,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-29 09:41:16,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 339 transitions. [2020-10-29 09:41:16,213 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 339 transitions. Word has length 19 [2020-10-29 09:41:16,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:16,213 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 339 transitions. [2020-10-29 09:41:16,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 09:41:16,213 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 339 transitions. [2020-10-29 09:41:16,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-29 09:41:16,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:16,214 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] [2020-10-29 09:41:16,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 09:41:16,214 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:16,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:16,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1147413986, now seen corresponding path program 1 times [2020-10-29 09:41:16,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:16,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549443558] [2020-10-29 09:41:16,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:16,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:16,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:16,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:16,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-29 09:41:16,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:41:16,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-29 09:41:16,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:16,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:16,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:41:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 09:41:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 09:41:16,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:16,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:16,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:16,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:16,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:16,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:16,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 09:41:16,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:16,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:16,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:16,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:16,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:16,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:41:16,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:16,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549443558] [2020-10-29 09:41:16,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:16,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 09:41:16,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19338358] [2020-10-29 09:41:16,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 09:41:16,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:16,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 09:41:16,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:41:16,584 INFO L87 Difference]: Start difference. First operand 272 states and 339 transitions. Second operand 7 states. [2020-10-29 09:41:18,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:18,164 INFO L93 Difference]: Finished difference Result 303 states and 376 transitions. [2020-10-29 09:41:18,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 09:41:18,164 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-29 09:41:18,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:18,167 INFO L225 Difference]: With dead ends: 303 [2020-10-29 09:41:18,167 INFO L226 Difference]: Without dead ends: 300 [2020-10-29 09:41:18,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 09:41:18,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-10-29 09:41:18,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 282. [2020-10-29 09:41:18,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-29 09:41:18,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 351 transitions. [2020-10-29 09:41:18,179 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 351 transitions. Word has length 20 [2020-10-29 09:41:18,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:18,180 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 351 transitions. [2020-10-29 09:41:18,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 09:41:18,180 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 351 transitions. [2020-10-29 09:41:18,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-29 09:41:18,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:18,180 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] [2020-10-29 09:41:18,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 09:41:18,181 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:18,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:18,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1061268859, now seen corresponding path program 1 times [2020-10-29 09:41:18,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:18,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923682700] [2020-10-29 09:41:18,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:18,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:18,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:18,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:18,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:19,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:19,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 09:41:19,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 09:41:19,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 830 [2020-10-29 09:41:19,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:19,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 09:41:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 09:41:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 09:41:19,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:19,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:19,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:19,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:19,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:19,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:19,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:41:19,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:19,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:19,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:19,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:19,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:19,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:19,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:19,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923682700] [2020-10-29 09:41:19,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:19,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 09:41:19,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549046963] [2020-10-29 09:41:19,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 09:41:19,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:19,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 09:41:19,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:41:19,118 INFO L87 Difference]: Start difference. First operand 282 states and 351 transitions. Second operand 5 states. [2020-10-29 09:41:20,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:20,100 INFO L93 Difference]: Finished difference Result 284 states and 352 transitions. [2020-10-29 09:41:20,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 09:41:20,101 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-29 09:41:20,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:20,103 INFO L225 Difference]: With dead ends: 284 [2020-10-29 09:41:20,105 INFO L226 Difference]: Without dead ends: 281 [2020-10-29 09:41:20,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:41:20,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-29 09:41:20,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-10-29 09:41:20,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-29 09:41:20,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 349 transitions. [2020-10-29 09:41:20,119 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 349 transitions. Word has length 21 [2020-10-29 09:41:20,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:20,120 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 349 transitions. [2020-10-29 09:41:20,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 09:41:20,120 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 349 transitions. [2020-10-29 09:41:20,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-29 09:41:20,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:20,126 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] [2020-10-29 09:41:20,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 09:41:20,126 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:20,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:20,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1461384455, now seen corresponding path program 1 times [2020-10-29 09:41:20,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:20,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724054713] [2020-10-29 09:41:20,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:20,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:20,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:20,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:20,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:20,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:20,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 09:41:20,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 09:41:20,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-10-29 09:41:20,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:20,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:20,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:41:20,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 09:41:20,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 09:41:20,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:21,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:21,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:21,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:21,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:21,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:21,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 09:41:21,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:21,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:21,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:21,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:21,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:21,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:41:21,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:21,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724054713] [2020-10-29 09:41:21,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:21,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 09:41:21,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19509545] [2020-10-29 09:41:21,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 09:41:21,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:21,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 09:41:21,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-29 09:41:21,051 INFO L87 Difference]: Start difference. First operand 281 states and 349 transitions. Second operand 9 states. [2020-10-29 09:41:21,240 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-29 09:41:21,359 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-29 09:41:23,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:23,078 INFO L93 Difference]: Finished difference Result 283 states and 350 transitions. [2020-10-29 09:41:23,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 09:41:23,079 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-29 09:41:23,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:23,081 INFO L225 Difference]: With dead ends: 283 [2020-10-29 09:41:23,081 INFO L226 Difference]: Without dead ends: 278 [2020-10-29 09:41:23,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-29 09:41:23,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-29 09:41:23,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-10-29 09:41:23,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-29 09:41:23,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 345 transitions. [2020-10-29 09:41:23,094 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 345 transitions. Word has length 22 [2020-10-29 09:41:23,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:23,094 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 345 transitions. [2020-10-29 09:41:23,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 09:41:23,095 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 345 transitions. [2020-10-29 09:41:23,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 09:41:23,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:23,096 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] [2020-10-29 09:41:23,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 09:41:23,096 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:23,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:23,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1943871049, now seen corresponding path program 1 times [2020-10-29 09:41:23,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:23,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821708348] [2020-10-29 09:41:23,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:23,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:23,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:23,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:23,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:23,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-29 09:41:23,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 09:41:23,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-29 09:41:23,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:23,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:23,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 09:41:23,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 09:41:23,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 09:41:23,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:23,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:23,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:23,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:23,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:23,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:41:23,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:23,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:23,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:23,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:23,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821708348] [2020-10-29 09:41:23,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:23,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 09:41:23,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551867326] [2020-10-29 09:41:23,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 09:41:23,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:23,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 09:41:23,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-29 09:41:23,607 INFO L87 Difference]: Start difference. First operand 278 states and 345 transitions. Second operand 9 states. [2020-10-29 09:41:25,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:25,462 INFO L93 Difference]: Finished difference Result 289 states and 357 transitions. [2020-10-29 09:41:25,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 09:41:25,462 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-29 09:41:25,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:25,464 INFO L225 Difference]: With dead ends: 289 [2020-10-29 09:41:25,465 INFO L226 Difference]: Without dead ends: 254 [2020-10-29 09:41:25,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-29 09:41:25,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-29 09:41:25,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-10-29 09:41:25,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-29 09:41:25,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 255 transitions. [2020-10-29 09:41:25,474 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 255 transitions. Word has length 23 [2020-10-29 09:41:25,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:25,475 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 255 transitions. [2020-10-29 09:41:25,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 09:41:25,475 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 255 transitions. [2020-10-29 09:41:25,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-29 09:41:25,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:25,480 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:41:25,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 09:41:25,480 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:25,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:25,481 INFO L82 PathProgramCache]: Analyzing trace with hash 76858281, now seen corresponding path program 1 times [2020-10-29 09:41:25,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:25,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832926048] [2020-10-29 09:41:25,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:25,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:26,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:28,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:29,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:30,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:30,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-29 09:41:30,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 09:41:30,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5104 [2020-10-29 09:41:30,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:30,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:30,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-10-29 09:41:30,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-29 09:41:30,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 223 [2020-10-29 09:41:30,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:33,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:33,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:33,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:33,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:33,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:33,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:41:33,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:33,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:33,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:33,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:33,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:33,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:33,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:33,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832926048] [2020-10-29 09:41:33,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:33,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2020-10-29 09:41:33,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476359331] [2020-10-29 09:41:33,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 60 states [2020-10-29 09:41:33,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:33,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2020-10-29 09:41:33,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1602, Invalid=1938, Unknown=0, NotChecked=0, Total=3540 [2020-10-29 09:41:33,673 INFO L87 Difference]: Start difference. First operand 254 states and 255 transitions. Second operand 60 states. [2020-10-29 09:41:34,402 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-29 09:41:34,695 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-29 09:41:35,677 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-29 09:41:35,994 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-29 09:41:36,325 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-29 09:41:36,496 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-29 09:41:37,018 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-29 09:41:37,201 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-29 09:41:37,396 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-29 09:41:37,595 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-29 09:41:39,664 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-29 09:41:42,415 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-29 09:41:43,127 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-29 09:41:43,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:43,733 INFO L93 Difference]: Finished difference Result 257 states and 257 transitions. [2020-10-29 09:41:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-10-29 09:41:43,733 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 249 [2020-10-29 09:41:43,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:43,735 INFO L225 Difference]: With dead ends: 257 [2020-10-29 09:41:43,735 INFO L226 Difference]: Without dead ends: 254 [2020-10-29 09:41:43,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1754 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=5025, Invalid=8781, Unknown=0, NotChecked=0, Total=13806 [2020-10-29 09:41:43,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-29 09:41:43,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 253. [2020-10-29 09:41:43,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-29 09:41:43,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 253 transitions. [2020-10-29 09:41:43,750 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 253 transitions. Word has length 249 [2020-10-29 09:41:43,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:43,752 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 253 transitions. [2020-10-29 09:41:43,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 60 states. [2020-10-29 09:41:43,753 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 253 transitions. [2020-10-29 09:41:43,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-29 09:41:43,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:41:43,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:41:43,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 09:41:43,757 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:41:43,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:41:43,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1912280946, now seen corresponding path program 1 times [2020-10-29 09:41:43,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:41:43,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25287568] [2020-10-29 09:41:43,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:41:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:44,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:51,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:51,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-29 09:41:51,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:51,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7286 [2020-10-29 09:41:51,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:51,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:51,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 119 [2020-10-29 09:41:51,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 09:41:51,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 237 [2020-10-29 09:41:51,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:52,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:41:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:41:52,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:41:52,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:41:52,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:41:52,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:41:52,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 09:41:52,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:41:52,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:41:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:41:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:41:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:41:52,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:41:52,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:41:52,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25287568] [2020-10-29 09:41:52,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:41:52,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 09:41:52,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422420714] [2020-10-29 09:41:52,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 09:41:52,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:41:52,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 09:41:52,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-29 09:41:52,783 INFO L87 Difference]: Start difference. First operand 253 states and 253 transitions. Second operand 8 states. [2020-10-29 09:41:53,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:53,938 INFO L93 Difference]: Finished difference Result 255 states and 255 transitions. [2020-10-29 09:41:53,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:41:53,939 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 250 [2020-10-29 09:41:53,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:53,940 INFO L225 Difference]: With dead ends: 255 [2020-10-29 09:41:53,940 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 09:41:53,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 7 SyntacticMatches, 111 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 09:41:53,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 09:41:53,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 09:41:53,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 09:41:53,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 09:41:53,944 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 250 [2020-10-29 09:41:53,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:53,944 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 09:41:53,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 09:41:53,944 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 09:41:53,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 09:41:53,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 09:41:53,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 09:41:54,550 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 09:41:54,551 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 09:41:54,551 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 09:41:54,551 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 09:41:54,551 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 09:41:54,551 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~__tmp_3904_0~0 |old(~__tmp_3904_0~0)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= ~__return_2598~0 |old(~__return_2598~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~__tmp_3904_1~0 |old(~__tmp_3904_1~0)|) (= ~__tmp_2609_0~0 |old(~__tmp_2609_0~0)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-10-29 09:41:54,552 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 09:41:54,552 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 09:41:54,552 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-29 09:41:54,552 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 09:41:54,552 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 09:41:54,552 INFO L274 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2020-10-29 09:41:54,552 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-10-29 09:41:54,552 INFO L274 CegarLoopResult]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2020-10-29 09:41:54,552 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2020-10-29 09:41:54,552 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 16 3008) no Hoare annotation was computed. [2020-10-29 09:41:54,553 INFO L274 CegarLoopResult]: For program point L1555(lines 1555 2805) no Hoare annotation was computed. [2020-10-29 09:41:54,553 INFO L274 CegarLoopResult]: For program point L2546(lines 2546 2653) no Hoare annotation was computed. [2020-10-29 09:41:54,553 INFO L274 CegarLoopResult]: For program point L2480(lines 2480 2663) no Hoare annotation was computed. [2020-10-29 09:41:54,553 INFO L274 CegarLoopResult]: For program point L432(lines 432 2978) no Hoare annotation was computed. [2020-10-29 09:41:54,553 INFO L274 CegarLoopResult]: For program point L697(lines 697 2937) no Hoare annotation was computed. [2020-10-29 09:41:54,553 INFO L274 CegarLoopResult]: For program point L1688(lines 1688 2785) no Hoare annotation was computed. [2020-10-29 09:41:54,553 INFO L274 CegarLoopResult]: For program point L1622(lines 1622 2795) no Hoare annotation was computed. [2020-10-29 09:41:54,553 INFO L274 CegarLoopResult]: For program point L103(lines 103 125) no Hoare annotation was computed. [2020-10-29 09:41:54,553 INFO L274 CegarLoopResult]: For program point L1953(lines 1953 2744) no Hoare annotation was computed. [2020-10-29 09:41:54,553 INFO L274 CegarLoopResult]: For program point L830(lines 830 2917) no Hoare annotation was computed. [2020-10-29 09:41:54,553 INFO L274 CegarLoopResult]: For program point L764(lines 764 2927) no Hoare annotation was computed. [2020-10-29 09:41:54,553 INFO L274 CegarLoopResult]: For program point L2614(lines 2614 2643) no Hoare annotation was computed. [2020-10-29 09:41:54,554 INFO L274 CegarLoopResult]: For program point L2218(lines 2218 2703) no Hoare annotation was computed. [2020-10-29 09:41:54,554 INFO L274 CegarLoopResult]: For program point L1095(lines 1095 2876) no Hoare annotation was computed. [2020-10-29 09:41:54,554 INFO L274 CegarLoopResult]: For program point L1360(lines 1360 2835) no Hoare annotation was computed. [2020-10-29 09:41:54,554 INFO L274 CegarLoopResult]: For program point L2351(lines 2351 2683) no Hoare annotation was computed. [2020-10-29 09:41:54,554 INFO L274 CegarLoopResult]: For program point L2285(lines 2285 2693) no Hoare annotation was computed. [2020-10-29 09:41:54,554 INFO L274 CegarLoopResult]: For program point L171(lines 171 193) no Hoare annotation was computed. [2020-10-29 09:41:54,554 INFO L270 CegarLoopResult]: At program point L105(line 105) the Hoare annotation is: false [2020-10-29 09:41:54,554 INFO L274 CegarLoopResult]: For program point L105-1(line 105) no Hoare annotation was computed. [2020-10-29 09:41:54,554 INFO L270 CegarLoopResult]: At program point L2616(line 2616) the Hoare annotation is: false [2020-10-29 09:41:54,554 INFO L274 CegarLoopResult]: For program point L502(lines 502 2967) no Hoare annotation was computed. [2020-10-29 09:41:54,554 INFO L274 CegarLoopResult]: For program point L2616-1(line 2616) no Hoare annotation was computed. [2020-10-29 09:41:54,554 INFO L274 CegarLoopResult]: For program point L1493(lines 1493 2815) no Hoare annotation was computed. [2020-10-29 09:41:54,554 INFO L274 CegarLoopResult]: For program point L1427(lines 1427 2825) no Hoare annotation was computed. [2020-10-29 09:41:54,555 INFO L274 CegarLoopResult]: For program point L1758(lines 1758 2774) no Hoare annotation was computed. [2020-10-29 09:41:54,555 INFO L274 CegarLoopResult]: For program point L635(lines 635 2947) no Hoare annotation was computed. [2020-10-29 09:41:54,555 INFO L274 CegarLoopResult]: For program point L569(lines 569 2957) no Hoare annotation was computed. [2020-10-29 09:41:54,555 INFO L270 CegarLoopResult]: At program point L173(line 173) the Hoare annotation is: false [2020-10-29 09:41:54,555 INFO L274 CegarLoopResult]: For program point L173-1(line 173) no Hoare annotation was computed. [2020-10-29 09:41:54,555 INFO L274 CegarLoopResult]: For program point L2023(lines 2023 2733) no Hoare annotation was computed. [2020-10-29 09:41:54,555 INFO L274 CegarLoopResult]: For program point L900(lines 900 2906) no Hoare annotation was computed. [2020-10-29 09:41:54,555 INFO L274 CegarLoopResult]: For program point L1165(lines 1165 2865) no Hoare annotation was computed. [2020-10-29 09:41:54,555 INFO L274 CegarLoopResult]: For program point L2156(lines 2156 2713) no Hoare annotation was computed. [2020-10-29 09:41:54,555 INFO L274 CegarLoopResult]: For program point L2090(lines 2090 2723) no Hoare annotation was computed. [2020-10-29 09:41:54,556 INFO L274 CegarLoopResult]: For program point L2421(lines 2421 2672) no Hoare annotation was computed. [2020-10-29 09:41:54,556 INFO L274 CegarLoopResult]: For program point L307(lines 307 2997) no Hoare annotation was computed. [2020-10-29 09:41:54,556 INFO L274 CegarLoopResult]: For program point L1298(lines 1298 2845) no Hoare annotation was computed. [2020-10-29 09:41:54,556 INFO L274 CegarLoopResult]: For program point L1232(lines 1232 2855) no Hoare annotation was computed. [2020-10-29 09:41:54,556 INFO L274 CegarLoopResult]: For program point L1563(lines 1563 2804) no Hoare annotation was computed. [2020-10-29 09:41:54,556 INFO L274 CegarLoopResult]: For program point L440(lines 440 2977) no Hoare annotation was computed. [2020-10-29 09:41:54,556 INFO L274 CegarLoopResult]: For program point L374(lines 374 2987) no Hoare annotation was computed. [2020-10-29 09:41:54,556 INFO L274 CegarLoopResult]: For program point L1828(lines 1828 2763) no Hoare annotation was computed. [2020-10-29 09:41:54,556 INFO L274 CegarLoopResult]: For program point L705(lines 705 2936) no Hoare annotation was computed. [2020-10-29 09:41:54,556 INFO L274 CegarLoopResult]: For program point L45(lines 45 55) no Hoare annotation was computed. [2020-10-29 09:41:54,556 INFO L274 CegarLoopResult]: For program point L970(lines 970 2895) no Hoare annotation was computed. [2020-10-29 09:41:54,556 INFO L274 CegarLoopResult]: For program point L1961(lines 1961 2743) no Hoare annotation was computed. [2020-10-29 09:41:54,557 INFO L274 CegarLoopResult]: For program point L1895(lines 1895 2753) no Hoare annotation was computed. [2020-10-29 09:41:54,557 INFO L274 CegarLoopResult]: For program point L2226(lines 2226 2702) no Hoare annotation was computed. [2020-10-29 09:41:54,557 INFO L274 CegarLoopResult]: For program point L1103(lines 1103 2875) no Hoare annotation was computed. [2020-10-29 09:41:54,557 INFO L274 CegarLoopResult]: For program point L1037(lines 1037 2885) no Hoare annotation was computed. [2020-10-29 09:41:54,557 INFO L274 CegarLoopResult]: For program point L2623(lines 2623 2642) no Hoare annotation was computed. [2020-10-29 09:41:54,557 INFO L274 CegarLoopResult]: For program point L2491(lines 2491 2661) no Hoare annotation was computed. [2020-10-29 09:41:54,557 INFO L274 CegarLoopResult]: For program point L1368(lines 1368 2834) no Hoare annotation was computed. [2020-10-29 09:41:54,557 INFO L270 CegarLoopResult]: At program point L47(line 47) the Hoare annotation is: false [2020-10-29 09:41:54,557 INFO L274 CegarLoopResult]: For program point L47-1(line 47) no Hoare annotation was computed. [2020-10-29 09:41:54,557 INFO L274 CegarLoopResult]: For program point L1633(lines 1633 2793) no Hoare annotation was computed. [2020-10-29 09:41:54,557 INFO L274 CegarLoopResult]: For program point L2558(lines 2558 2651) no Hoare annotation was computed. [2020-10-29 09:41:54,557 INFO L274 CegarLoopResult]: For program point L510(lines 510 2966) no Hoare annotation was computed. [2020-10-29 09:41:54,558 INFO L274 CegarLoopResult]: For program point L246(lines 246 281) no Hoare annotation was computed. [2020-10-29 09:41:54,558 INFO L274 CegarLoopResult]: For program point L775(lines 775 2925) no Hoare annotation was computed. [2020-10-29 09:41:54,558 INFO L274 CegarLoopResult]: For program point L1766(lines 1766 2773) no Hoare annotation was computed. [2020-10-29 09:41:54,558 INFO L274 CegarLoopResult]: For program point L1700(lines 1700 2783) no Hoare annotation was computed. [2020-10-29 09:41:54,558 INFO L270 CegarLoopResult]: At program point L2625(lines 25 3002) the Hoare annotation is: (and (= main_~main__tagbuf_len~0 main_~main__t~0) (<= 0 main_~main__t~0)) [2020-10-29 09:41:54,558 INFO L274 CegarLoopResult]: For program point L115(lines 115 123) no Hoare annotation was computed. [2020-10-29 09:41:54,558 INFO L274 CegarLoopResult]: For program point L2031(lines 2031 2732) no Hoare annotation was computed. [2020-10-29 09:41:54,558 INFO L274 CegarLoopResult]: For program point L908(lines 908 2905) no Hoare annotation was computed. [2020-10-29 09:41:54,558 INFO L274 CegarLoopResult]: For program point L842(lines 842 2915) no Hoare annotation was computed. [2020-10-29 09:41:54,558 INFO L274 CegarLoopResult]: For program point L2296(lines 2296 2691) no Hoare annotation was computed. [2020-10-29 09:41:54,558 INFO L274 CegarLoopResult]: For program point L1173(lines 1173 2864) no Hoare annotation was computed. [2020-10-29 09:41:54,559 INFO L274 CegarLoopResult]: For program point L1438(lines 1438 2823) no Hoare annotation was computed. [2020-10-29 09:41:54,559 INFO L274 CegarLoopResult]: For program point L2429(lines 2429 2671) no Hoare annotation was computed. [2020-10-29 09:41:54,559 INFO L274 CegarLoopResult]: For program point L315(lines 315 2996) no Hoare annotation was computed. [2020-10-29 09:41:54,559 INFO L274 CegarLoopResult]: For program point L2363(lines 2363 2681) no Hoare annotation was computed. [2020-10-29 09:41:54,559 INFO L274 CegarLoopResult]: For program point L183(lines 183 191) no Hoare annotation was computed. [2020-10-29 09:41:54,559 INFO L270 CegarLoopResult]: At program point L117(line 117) the Hoare annotation is: false [2020-10-29 09:41:54,559 INFO L274 CegarLoopResult]: For program point L117-1(line 117) no Hoare annotation was computed. [2020-10-29 09:41:54,559 INFO L274 CegarLoopResult]: For program point L580(lines 580 2955) no Hoare annotation was computed. [2020-10-29 09:41:54,559 INFO L274 CegarLoopResult]: For program point L1571(lines 1571 2803) no Hoare annotation was computed. [2020-10-29 09:41:54,559 INFO L274 CegarLoopResult]: For program point L1505(lines 1505 2813) no Hoare annotation was computed. [2020-10-29 09:41:54,559 INFO L274 CegarLoopResult]: For program point L1836(lines 1836 2762) no Hoare annotation was computed. [2020-10-29 09:41:54,559 INFO L274 CegarLoopResult]: For program point L713(lines 713 2935) no Hoare annotation was computed. [2020-10-29 09:41:54,560 INFO L274 CegarLoopResult]: For program point L647(lines 647 2945) no Hoare annotation was computed. [2020-10-29 09:41:54,560 INFO L270 CegarLoopResult]: At program point L185(line 185) the Hoare annotation is: false [2020-10-29 09:41:54,560 INFO L274 CegarLoopResult]: For program point L185-1(line 185) no Hoare annotation was computed. [2020-10-29 09:41:54,560 INFO L274 CegarLoopResult]: For program point L2101(lines 2101 2721) no Hoare annotation was computed. [2020-10-29 09:41:54,560 INFO L274 CegarLoopResult]: For program point L978(lines 978 2894) no Hoare annotation was computed. [2020-10-29 09:41:54,560 INFO L274 CegarLoopResult]: For program point L1243(lines 1243 2853) no Hoare annotation was computed. [2020-10-29 09:41:54,560 INFO L274 CegarLoopResult]: For program point L2234(lines 2234 2701) no Hoare annotation was computed. [2020-10-29 09:41:54,560 INFO L274 CegarLoopResult]: For program point L2168(lines 2168 2711) no Hoare annotation was computed. [2020-10-29 09:41:54,560 INFO L274 CegarLoopResult]: For program point L2631(lines 2631 2641) no Hoare annotation was computed. [2020-10-29 09:41:54,560 INFO L274 CegarLoopResult]: For program point L2499(lines 2499 2660) no Hoare annotation was computed. [2020-10-29 09:41:54,560 INFO L274 CegarLoopResult]: For program point L385(lines 385 2985) no Hoare annotation was computed. [2020-10-29 09:41:54,560 INFO L274 CegarLoopResult]: For program point L1376(lines 1376 2833) no Hoare annotation was computed. [2020-10-29 09:41:54,561 INFO L274 CegarLoopResult]: For program point L1310(lines 1310 2843) no Hoare annotation was computed. [2020-10-29 09:41:54,561 INFO L274 CegarLoopResult]: For program point L253(lines 253 275) no Hoare annotation was computed. [2020-10-29 09:41:54,561 INFO L274 CegarLoopResult]: For program point L1641(lines 1641 2792) no Hoare annotation was computed. [2020-10-29 09:41:54,561 INFO L274 CegarLoopResult]: For program point L518(lines 518 2965) no Hoare annotation was computed. [2020-10-29 09:41:54,561 INFO L274 CegarLoopResult]: For program point L452(lines 452 2975) no Hoare annotation was computed. [2020-10-29 09:41:54,561 INFO L274 CegarLoopResult]: For program point L1906(lines 1906 2751) no Hoare annotation was computed. [2020-10-29 09:41:54,561 INFO L274 CegarLoopResult]: For program point L783(lines 783 2924) no Hoare annotation was computed. [2020-10-29 09:41:54,561 INFO L270 CegarLoopResult]: At program point L255(line 255) the Hoare annotation is: false [2020-10-29 09:41:54,561 INFO L274 CegarLoopResult]: For program point L255-1(line 255) no Hoare annotation was computed. [2020-10-29 09:41:54,561 INFO L274 CegarLoopResult]: For program point L1048(lines 1048 2883) no Hoare annotation was computed. [2020-10-29 09:41:54,561 INFO L274 CegarLoopResult]: For program point L2039(lines 2039 2731) no Hoare annotation was computed. [2020-10-29 09:41:54,561 INFO L274 CegarLoopResult]: For program point L1973(lines 1973 2741) no Hoare annotation was computed. [2020-10-29 09:41:54,562 INFO L270 CegarLoopResult]: At program point L2634(lines 64 3001) the Hoare annotation is: (and (not (= main_~main__tagbuf_len~0 main_~main__t~0)) (< main_~main__t~0 (+ main_~main__tagbuf_len~0 1)) (<= 0 main_~main__t~0)) [2020-10-29 09:41:54,562 INFO L274 CegarLoopResult]: For program point L2304(lines 2304 2690) no Hoare annotation was computed. [2020-10-29 09:41:54,562 INFO L274 CegarLoopResult]: For program point L1181(lines 1181 2863) no Hoare annotation was computed. [2020-10-29 09:41:54,562 INFO L274 CegarLoopResult]: For program point L1115(lines 1115 2873) no Hoare annotation was computed. [2020-10-29 09:41:54,562 INFO L274 CegarLoopResult]: For program point L2569(lines 2569 2649) no Hoare annotation was computed. [2020-10-29 09:41:54,562 INFO L274 CegarLoopResult]: For program point L1446(lines 1446 2822) no Hoare annotation was computed. [2020-10-29 09:41:54,562 INFO L274 CegarLoopResult]: For program point L323(lines 323 2995) no Hoare annotation was computed. [2020-10-29 09:41:54,562 INFO L274 CegarLoopResult]: For program point L1711(lines 1711 2781) no Hoare annotation was computed. [2020-10-29 09:41:54,562 INFO L274 CegarLoopResult]: For program point L588(lines 588 2954) no Hoare annotation was computed. [2020-10-29 09:41:54,562 INFO L274 CegarLoopResult]: For program point L853(lines 853 2913) no Hoare annotation was computed. [2020-10-29 09:41:54,562 INFO L274 CegarLoopResult]: For program point L1844(lines 1844 2761) no Hoare annotation was computed. [2020-10-29 09:41:54,563 INFO L274 CegarLoopResult]: For program point L1778(lines 1778 2771) no Hoare annotation was computed. [2020-10-29 09:41:54,563 INFO L274 CegarLoopResult]: For program point L2109(lines 2109 2720) no Hoare annotation was computed. [2020-10-29 09:41:54,563 INFO L274 CegarLoopResult]: For program point L986(lines 986 2893) no Hoare annotation was computed. [2020-10-29 09:41:54,563 INFO L274 CegarLoopResult]: For program point L920(lines 920 2903) no Hoare annotation was computed. [2020-10-29 09:41:54,563 INFO L274 CegarLoopResult]: For program point L2374(lines 2374 2679) no Hoare annotation was computed. [2020-10-29 09:41:54,563 INFO L274 CegarLoopResult]: For program point L1251(lines 1251 2852) no Hoare annotation was computed. [2020-10-29 09:41:54,563 INFO L274 CegarLoopResult]: For program point L1516(lines 1516 2811) no Hoare annotation was computed. [2020-10-29 09:41:54,563 INFO L274 CegarLoopResult]: For program point L2507(lines 2507 2659) no Hoare annotation was computed. [2020-10-29 09:41:54,563 INFO L274 CegarLoopResult]: For program point L393(lines 393 2984) no Hoare annotation was computed. [2020-10-29 09:41:54,563 INFO L274 CegarLoopResult]: For program point L2441(lines 2441 2669) no Hoare annotation was computed. [2020-10-29 09:41:54,563 INFO L274 CegarLoopResult]: For program point L658(lines 658 2943) no Hoare annotation was computed. [2020-10-29 09:41:54,564 INFO L274 CegarLoopResult]: For program point L1649(lines 1649 2791) no Hoare annotation was computed. [2020-10-29 09:41:54,564 INFO L270 CegarLoopResult]: At program point L2640(lines 2591 2647) the Hoare annotation is: (and (<= 54 main_~main__t~0) (= main_~__VERIFIER_assert__cond~22 1) (not (= main_~main__tagbuf_len~0 main_~main__t~0)) (< main_~main__t~0 (+ main_~main__tagbuf_len~0 1))) [2020-10-29 09:41:54,564 INFO L274 CegarLoopResult]: For program point L1583(lines 1583 2801) no Hoare annotation was computed. [2020-10-29 09:41:54,564 INFO L274 CegarLoopResult]: For program point L64(lines 64 3001) no Hoare annotation was computed. [2020-10-29 09:41:54,564 INFO L274 CegarLoopResult]: For program point L1914(lines 1914 2750) no Hoare annotation was computed. [2020-10-29 09:41:54,564 INFO L274 CegarLoopResult]: For program point L791(lines 791 2923) no Hoare annotation was computed. [2020-10-29 09:41:54,564 INFO L274 CegarLoopResult]: For program point L725(lines 725 2933) no Hoare annotation was computed. [2020-10-29 09:41:54,564 INFO L274 CegarLoopResult]: For program point L2179(lines 2179 2709) no Hoare annotation was computed. [2020-10-29 09:41:54,564 INFO L274 CegarLoopResult]: For program point L1056(lines 1056 2882) no Hoare annotation was computed. [2020-10-29 09:41:54,564 INFO L274 CegarLoopResult]: For program point L1321(lines 1321 2841) no Hoare annotation was computed. [2020-10-29 09:41:54,565 INFO L274 CegarLoopResult]: For program point L2312(lines 2312 2689) no Hoare annotation was computed. [2020-10-29 09:41:54,565 INFO L274 CegarLoopResult]: For program point L2246(lines 2246 2699) no Hoare annotation was computed. [2020-10-29 09:41:54,565 INFO L274 CegarLoopResult]: For program point L132(lines 132 282) no Hoare annotation was computed. [2020-10-29 09:41:54,565 INFO L274 CegarLoopResult]: For program point L2577(lines 2577 2648) no Hoare annotation was computed. [2020-10-29 09:41:54,565 INFO L274 CegarLoopResult]: For program point L463(lines 463 2973) no Hoare annotation was computed. [2020-10-29 09:41:54,565 INFO L274 CegarLoopResult]: For program point L1454(lines 1454 2821) no Hoare annotation was computed. [2020-10-29 09:41:54,565 INFO L274 CegarLoopResult]: For program point L1388(lines 1388 2831) no Hoare annotation was computed. [2020-10-29 09:41:54,565 INFO L274 CegarLoopResult]: For program point L265(lines 265 273) no Hoare annotation was computed. [2020-10-29 09:41:54,565 INFO L274 CegarLoopResult]: For program point L1719(lines 1719 2780) no Hoare annotation was computed. [2020-10-29 09:41:54,565 INFO L274 CegarLoopResult]: For program point L596(lines 596 2953) no Hoare annotation was computed. [2020-10-29 09:41:54,565 INFO L274 CegarLoopResult]: For program point L530(lines 530 2963) no Hoare annotation was computed. [2020-10-29 09:41:54,565 INFO L274 CegarLoopResult]: For program point L1984(lines 1984 2739) no Hoare annotation was computed. [2020-10-29 09:41:54,566 INFO L274 CegarLoopResult]: For program point L861(lines 861 2912) no Hoare annotation was computed. [2020-10-29 09:41:54,566 INFO L270 CegarLoopResult]: At program point L267(line 267) the Hoare annotation is: false [2020-10-29 09:41:54,566 INFO L274 CegarLoopResult]: For program point L267-1(line 267) no Hoare annotation was computed. [2020-10-29 09:41:54,566 INFO L274 CegarLoopResult]: For program point L1126(lines 1126 2871) no Hoare annotation was computed. [2020-10-29 09:41:54,566 INFO L274 CegarLoopResult]: For program point L2117(lines 2117 2719) no Hoare annotation was computed. [2020-10-29 09:41:54,566 INFO L274 CegarLoopResult]: For program point L2051(lines 2051 2729) no Hoare annotation was computed. [2020-10-29 09:41:54,566 INFO L274 CegarLoopResult]: For program point L2382(lines 2382 2678) no Hoare annotation was computed. [2020-10-29 09:41:54,566 INFO L274 CegarLoopResult]: For program point L1259(lines 1259 2851) no Hoare annotation was computed. [2020-10-29 09:41:54,566 INFO L274 CegarLoopResult]: For program point L1193(lines 1193 2861) no Hoare annotation was computed. [2020-10-29 09:41:54,566 INFO L274 CegarLoopResult]: For program point L136(lines 136 240) no Hoare annotation was computed. [2020-10-29 09:41:54,566 INFO L274 CegarLoopResult]: For program point L1524(lines 1524 2810) no Hoare annotation was computed. [2020-10-29 09:41:54,566 INFO L274 CegarLoopResult]: For program point L401(lines 401 2983) no Hoare annotation was computed. [2020-10-29 09:41:54,567 INFO L274 CegarLoopResult]: For program point L335(lines 335 2993) no Hoare annotation was computed. [2020-10-29 09:41:54,567 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 16 3008) no Hoare annotation was computed. [2020-10-29 09:41:54,567 INFO L274 CegarLoopResult]: For program point L1789(lines 1789 2769) no Hoare annotation was computed. [2020-10-29 09:41:54,567 INFO L274 CegarLoopResult]: For program point L666(lines 666 2942) no Hoare annotation was computed. [2020-10-29 09:41:54,567 INFO L274 CegarLoopResult]: For program point L931(lines 931 2901) no Hoare annotation was computed. [2020-10-29 09:41:54,567 INFO L274 CegarLoopResult]: For program point L1922(lines 1922 2749) no Hoare annotation was computed. [2020-10-29 09:41:54,567 INFO L274 CegarLoopResult]: For program point L1856(lines 1856 2759) no Hoare annotation was computed. [2020-10-29 09:41:54,567 INFO L274 CegarLoopResult]: For program point L205(lines 205 229) no Hoare annotation was computed. [2020-10-29 09:41:54,567 INFO L274 CegarLoopResult]: For program point L2187(lines 2187 2708) no Hoare annotation was computed. [2020-10-29 09:41:54,567 INFO L274 CegarLoopResult]: For program point L1064(lines 1064 2881) no Hoare annotation was computed. [2020-10-29 09:41:54,567 INFO L274 CegarLoopResult]: For program point L998(lines 998 2891) no Hoare annotation was computed. [2020-10-29 09:41:54,567 INFO L274 CegarLoopResult]: For program point L2452(lines 2452 2667) no Hoare annotation was computed. [2020-10-29 09:41:54,568 INFO L274 CegarLoopResult]: For program point L1329(lines 1329 2840) no Hoare annotation was computed. [2020-10-29 09:41:54,568 INFO L274 CegarLoopResult]: For program point L74(lines 74 286) no Hoare annotation was computed. [2020-10-29 09:41:54,568 INFO L274 CegarLoopResult]: For program point L1594(lines 1594 2799) no Hoare annotation was computed. [2020-10-29 09:41:54,568 INFO L274 CegarLoopResult]: For program point L2585(lines 2585 2647) no Hoare annotation was computed. [2020-10-29 09:41:54,568 INFO L274 CegarLoopResult]: For program point L471(lines 471 2972) no Hoare annotation was computed. [2020-10-29 09:41:54,568 INFO L274 CegarLoopResult]: For program point L2519(lines 2519 2657) no Hoare annotation was computed. [2020-10-29 09:41:54,568 INFO L270 CegarLoopResult]: At program point L207(line 207) the Hoare annotation is: false [2020-10-29 09:41:54,568 INFO L274 CegarLoopResult]: For program point L207-1(line 207) no Hoare annotation was computed. [2020-10-29 09:41:54,568 INFO L274 CegarLoopResult]: For program point L736(lines 736 2931) no Hoare annotation was computed. [2020-10-29 09:41:54,568 INFO L274 CegarLoopResult]: For program point L1727(lines 1727 2779) no Hoare annotation was computed. [2020-10-29 09:41:54,568 INFO L274 CegarLoopResult]: For program point L1661(lines 1661 2789) no Hoare annotation was computed. [2020-10-29 09:41:54,568 INFO L270 CegarLoopResult]: At program point L76(line 76) the Hoare annotation is: false [2020-10-29 09:41:54,569 INFO L274 CegarLoopResult]: For program point L76-1(line 76) no Hoare annotation was computed. [2020-10-29 09:41:54,569 INFO L274 CegarLoopResult]: For program point L1992(lines 1992 2738) no Hoare annotation was computed. [2020-10-29 09:41:54,569 INFO L274 CegarLoopResult]: For program point L869(lines 869 2911) no Hoare annotation was computed. [2020-10-29 09:41:54,569 INFO L274 CegarLoopResult]: For program point L803(lines 803 2921) no Hoare annotation was computed. [2020-10-29 09:41:54,569 INFO L274 CegarLoopResult]: For program point L2257(lines 2257 2697) no Hoare annotation was computed. [2020-10-29 09:41:54,569 INFO L274 CegarLoopResult]: For program point L143(lines 143 234) no Hoare annotation was computed. [2020-10-29 09:41:54,569 INFO L274 CegarLoopResult]: For program point L1134(lines 1134 2870) no Hoare annotation was computed. [2020-10-29 09:41:54,569 INFO L274 CegarLoopResult]: For program point L1399(lines 1399 2829) no Hoare annotation was computed. [2020-10-29 09:41:54,569 INFO L274 CegarLoopResult]: For program point L2390(lines 2390 2677) no Hoare annotation was computed. [2020-10-29 09:41:54,569 INFO L274 CegarLoopResult]: For program point L2324(lines 2324 2687) no Hoare annotation was computed. [2020-10-29 09:41:54,569 INFO L274 CegarLoopResult]: For program point L541(lines 541 2961) no Hoare annotation was computed. [2020-10-29 09:41:54,569 INFO L274 CegarLoopResult]: For program point L1532(lines 1532 2809) no Hoare annotation was computed. [2020-10-29 09:41:54,569 INFO L274 CegarLoopResult]: For program point L1466(lines 1466 2819) no Hoare annotation was computed. [2020-10-29 09:41:54,570 INFO L270 CegarLoopResult]: At program point L145(line 145) the Hoare annotation is: false [2020-10-29 09:41:54,570 INFO L274 CegarLoopResult]: For program point L145-1(line 145) no Hoare annotation was computed. [2020-10-29 09:41:54,570 INFO L274 CegarLoopResult]: For program point L1797(lines 1797 2768) no Hoare annotation was computed. [2020-10-29 09:41:54,570 INFO L274 CegarLoopResult]: For program point L674(lines 674 2941) no Hoare annotation was computed. [2020-10-29 09:41:54,570 INFO L274 CegarLoopResult]: For program point L608(lines 608 2951) no Hoare annotation was computed. [2020-10-29 09:41:54,570 INFO L274 CegarLoopResult]: For program point L2062(lines 2062 2727) no Hoare annotation was computed. [2020-10-29 09:41:54,570 INFO L274 CegarLoopResult]: For program point L939(lines 939 2900) no Hoare annotation was computed. [2020-10-29 09:41:54,570 INFO L274 CegarLoopResult]: For program point L1204(lines 1204 2859) no Hoare annotation was computed. [2020-10-29 09:41:54,570 INFO L274 CegarLoopResult]: For program point L2195(lines 2195 2707) no Hoare annotation was computed. [2020-10-29 09:41:54,570 INFO L274 CegarLoopResult]: For program point L2129(lines 2129 2717) no Hoare annotation was computed. [2020-10-29 09:41:54,570 INFO L274 CegarLoopResult]: For program point L2460(lines 2460 2666) no Hoare annotation was computed. [2020-10-29 09:41:54,570 INFO L274 CegarLoopResult]: For program point L346(lines 346 2991) no Hoare annotation was computed. [2020-10-29 09:41:54,571 INFO L274 CegarLoopResult]: For program point L1337(lines 1337 2839) no Hoare annotation was computed. [2020-10-29 09:41:54,571 INFO L270 CegarLoopResult]: At program point L280(lines 132 282) the Hoare annotation is: (and (<= 1 main_~__VERIFIER_assert__cond~3) (not (= main_~__VERIFIER_assert__cond~2 0)) (<= 1 main_~main__t~0) (not (= main_~main__tagbuf_len~0 main_~main__t~0)) (< main_~main__t~0 (+ main_~main__tagbuf_len~0 1))) [2020-10-29 09:41:54,571 INFO L274 CegarLoopResult]: For program point L1271(lines 1271 2849) no Hoare annotation was computed. [2020-10-29 09:41:54,571 INFO L274 CegarLoopResult]: For program point L1602(lines 1602 2798) no Hoare annotation was computed. [2020-10-29 09:41:54,571 INFO L274 CegarLoopResult]: For program point L479(lines 479 2971) no Hoare annotation was computed. [2020-10-29 09:41:54,571 INFO L274 CegarLoopResult]: For program point L413(lines 413 2981) no Hoare annotation was computed. [2020-10-29 09:41:54,571 INFO L274 CegarLoopResult]: For program point L1867(lines 1867 2757) no Hoare annotation was computed. [2020-10-29 09:41:54,571 INFO L274 CegarLoopResult]: For program point L744(lines 744 2930) no Hoare annotation was computed. [2020-10-29 09:41:54,571 INFO L274 CegarLoopResult]: For program point L1009(lines 1009 2889) no Hoare annotation was computed. [2020-10-29 09:41:54,571 INFO L274 CegarLoopResult]: For program point L2000(lines 2000 2737) no Hoare annotation was computed. [2020-10-29 09:41:54,572 INFO L274 CegarLoopResult]: For program point L1934(lines 1934 2747) no Hoare annotation was computed. [2020-10-29 09:41:54,572 INFO L274 CegarLoopResult]: For program point L217(lines 217 227) no Hoare annotation was computed. [2020-10-29 09:41:54,572 INFO L274 CegarLoopResult]: For program point L2265(lines 2265 2696) no Hoare annotation was computed. [2020-10-29 09:41:54,572 INFO L274 CegarLoopResult]: For program point L1142(lines 1142 2869) no Hoare annotation was computed. [2020-10-29 09:41:54,572 INFO L274 CegarLoopResult]: For program point L1076(lines 1076 2879) no Hoare annotation was computed. [2020-10-29 09:41:54,572 INFO L274 CegarLoopResult]: For program point L2530(lines 2530 2655) no Hoare annotation was computed. [2020-10-29 09:41:54,572 INFO L274 CegarLoopResult]: For program point L1407(lines 1407 2828) no Hoare annotation was computed. [2020-10-29 09:41:54,572 INFO L274 CegarLoopResult]: For program point L86(lines 86 284) no Hoare annotation was computed. [2020-10-29 09:41:54,572 INFO L274 CegarLoopResult]: For program point L1672(lines 1672 2787) no Hoare annotation was computed. [2020-10-29 09:41:54,572 INFO L274 CegarLoopResult]: For program point L549(lines 549 2960) no Hoare annotation was computed. [2020-10-29 09:41:54,572 INFO L270 CegarLoopResult]: At program point L219(line 219) the Hoare annotation is: false [2020-10-29 09:41:54,572 INFO L274 CegarLoopResult]: For program point L219-1(line 219) no Hoare annotation was computed. [2020-10-29 09:41:54,573 INFO L274 CegarLoopResult]: For program point L21(lines 21 3007) no Hoare annotation was computed. [2020-10-29 09:41:54,573 INFO L274 CegarLoopResult]: For program point L814(lines 814 2919) no Hoare annotation was computed. [2020-10-29 09:41:54,573 INFO L274 CegarLoopResult]: For program point L1805(lines 1805 2767) no Hoare annotation was computed. [2020-10-29 09:41:54,573 INFO L274 CegarLoopResult]: For program point L1739(lines 1739 2777) no Hoare annotation was computed. [2020-10-29 09:41:54,573 INFO L270 CegarLoopResult]: At program point L88(line 88) the Hoare annotation is: false [2020-10-29 09:41:54,573 INFO L274 CegarLoopResult]: For program point L88-1(line 88) no Hoare annotation was computed. [2020-10-29 09:41:54,573 INFO L274 CegarLoopResult]: For program point L2070(lines 2070 2726) no Hoare annotation was computed. [2020-10-29 09:41:54,573 INFO L274 CegarLoopResult]: For program point L947(lines 947 2899) no Hoare annotation was computed. [2020-10-29 09:41:54,573 INFO L274 CegarLoopResult]: For program point L881(lines 881 2909) no Hoare annotation was computed. [2020-10-29 09:41:54,573 INFO L274 CegarLoopResult]: For program point L2335(lines 2335 2685) no Hoare annotation was computed. [2020-10-29 09:41:54,573 INFO L274 CegarLoopResult]: For program point L1212(lines 1212 2858) no Hoare annotation was computed. [2020-10-29 09:41:54,573 INFO L274 CegarLoopResult]: For program point L155(lines 155 232) no Hoare annotation was computed. [2020-10-29 09:41:54,574 INFO L274 CegarLoopResult]: For program point L1477(lines 1477 2817) no Hoare annotation was computed. [2020-10-29 09:41:54,574 INFO L274 CegarLoopResult]: For program point L2468(lines 2468 2665) no Hoare annotation was computed. [2020-10-29 09:41:54,574 INFO L274 CegarLoopResult]: For program point L2402(lines 2402 2675) no Hoare annotation was computed. [2020-10-29 09:41:54,574 INFO L274 CegarLoopResult]: For program point L354(lines 354 2990) no Hoare annotation was computed. [2020-10-29 09:41:54,574 INFO L274 CegarLoopResult]: For program point L619(lines 619 2949) no Hoare annotation was computed. [2020-10-29 09:41:54,574 INFO L274 CegarLoopResult]: For program point L1610(lines 1610 2797) no Hoare annotation was computed. [2020-10-29 09:41:54,574 INFO L274 CegarLoopResult]: For program point L1544(lines 1544 2807) no Hoare annotation was computed. [2020-10-29 09:41:54,574 INFO L270 CegarLoopResult]: At program point L157(line 157) the Hoare annotation is: false [2020-10-29 09:41:54,574 INFO L274 CegarLoopResult]: For program point L157-1(line 157) no Hoare annotation was computed. [2020-10-29 09:41:54,574 INFO L274 CegarLoopResult]: For program point L25(lines 25 3002) no Hoare annotation was computed. [2020-10-29 09:41:54,574 INFO L274 CegarLoopResult]: For program point L1875(lines 1875 2756) no Hoare annotation was computed. [2020-10-29 09:41:54,575 INFO L274 CegarLoopResult]: For program point L752(lines 752 2929) no Hoare annotation was computed. [2020-10-29 09:41:54,575 INFO L274 CegarLoopResult]: For program point L686(lines 686 2939) no Hoare annotation was computed. [2020-10-29 09:41:54,575 INFO L274 CegarLoopResult]: For program point L2602(lines 2602 2645) no Hoare annotation was computed. [2020-10-29 09:41:54,575 INFO L274 CegarLoopResult]: For program point L2140(lines 2140 2715) no Hoare annotation was computed. [2020-10-29 09:41:54,575 INFO L274 CegarLoopResult]: For program point L1017(lines 1017 2888) no Hoare annotation was computed. [2020-10-29 09:41:54,575 INFO L274 CegarLoopResult]: For program point L1282(lines 1282 2847) no Hoare annotation was computed. [2020-10-29 09:41:54,575 INFO L274 CegarLoopResult]: For program point L2273(lines 2273 2695) no Hoare annotation was computed. [2020-10-29 09:41:54,575 INFO L274 CegarLoopResult]: For program point L2207(lines 2207 2705) no Hoare annotation was computed. [2020-10-29 09:41:54,575 INFO L270 CegarLoopResult]: At program point L2604(line 2604) the Hoare annotation is: false [2020-10-29 09:41:54,575 INFO L274 CegarLoopResult]: For program point L2538(lines 2538 2654) no Hoare annotation was computed. [2020-10-29 09:41:54,576 INFO L274 CegarLoopResult]: For program point L2604-1(line 2604) no Hoare annotation was computed. [2020-10-29 09:41:54,576 INFO L274 CegarLoopResult]: For program point L424(lines 424 2979) no Hoare annotation was computed. [2020-10-29 09:41:54,576 INFO L274 CegarLoopResult]: For program point L1415(lines 1415 2827) no Hoare annotation was computed. [2020-10-29 09:41:54,576 INFO L274 CegarLoopResult]: For program point L1349(lines 1349 2837) no Hoare annotation was computed. [2020-10-29 09:41:54,576 INFO L270 CegarLoopResult]: At program point L226(lines 92 284) the Hoare annotation is: (and (<= 1 main_~__VERIFIER_assert__cond~3) (not (= main_~__VERIFIER_assert__cond~2 0)) (<= 1 main_~main__t~0) (or (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (= main_~main__tagbuf_len~0 main_~main__t~0))) [2020-10-29 09:41:54,576 INFO L274 CegarLoopResult]: For program point L1680(lines 1680 2786) no Hoare annotation was computed. [2020-10-29 09:41:54,576 INFO L274 CegarLoopResult]: For program point L557(lines 557 2959) no Hoare annotation was computed. [2020-10-29 09:41:54,576 INFO L274 CegarLoopResult]: For program point L491(lines 491 2969) no Hoare annotation was computed. [2020-10-29 09:41:54,576 INFO L274 CegarLoopResult]: For program point L1945(lines 1945 2745) no Hoare annotation was computed. [2020-10-29 09:41:54,576 INFO L274 CegarLoopResult]: For program point L822(lines 822 2918) no Hoare annotation was computed. [2020-10-29 09:41:54,576 INFO L274 CegarLoopResult]: For program point L1087(lines 1087 2877) no Hoare annotation was computed. [2020-10-29 09:41:54,577 INFO L274 CegarLoopResult]: For program point L2078(lines 2078 2725) no Hoare annotation was computed. [2020-10-29 09:41:54,577 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 16 3008) the Hoare annotation is: (and (= |old(~__tmp_3904_0~0)| ~__tmp_3904_0~0) (= |old(~__return_2598~0)| ~__return_2598~0) (= |old(~__tmp_3904_1~0)| ~__tmp_3904_1~0) (= |old(~__tmp_2609_0~0)| ~__tmp_2609_0~0)) [2020-10-29 09:41:54,577 INFO L274 CegarLoopResult]: For program point L2012(lines 2012 2735) no Hoare annotation was computed. [2020-10-29 09:41:54,577 INFO L274 CegarLoopResult]: For program point L2343(lines 2343 2684) no Hoare annotation was computed. [2020-10-29 09:41:54,577 INFO L274 CegarLoopResult]: For program point L1220(lines 1220 2857) no Hoare annotation was computed. [2020-10-29 09:41:54,577 INFO L274 CegarLoopResult]: For program point L1154(lines 1154 2867) no Hoare annotation was computed. [2020-10-29 09:41:54,577 INFO L274 CegarLoopResult]: For program point L1485(lines 1485 2816) no Hoare annotation was computed. [2020-10-29 09:41:54,577 INFO L274 CegarLoopResult]: For program point L362(lines 362 2989) no Hoare annotation was computed. [2020-10-29 09:41:54,577 INFO L274 CegarLoopResult]: For program point L296(lines 296 2999) no Hoare annotation was computed. [2020-10-29 09:41:54,577 INFO L274 CegarLoopResult]: For program point L164(lines 164 231) no Hoare annotation was computed. [2020-10-29 09:41:54,577 INFO L274 CegarLoopResult]: For program point L1750(lines 1750 2775) no Hoare annotation was computed. [2020-10-29 09:41:54,578 INFO L274 CegarLoopResult]: For program point L627(lines 627 2948) no Hoare annotation was computed. [2020-10-29 09:41:54,578 INFO L274 CegarLoopResult]: For program point L33(lines 33 57) no Hoare annotation was computed. [2020-10-29 09:41:54,578 INFO L270 CegarLoopResult]: At program point L3006(lines 21 3007) the Hoare annotation is: (or (and (= |old(~__tmp_3904_0~0)| ~__tmp_3904_0~0) (= |old(~__return_2598~0)| ~__return_2598~0) (= |old(~__tmp_3904_1~0)| ~__tmp_3904_1~0) (= |old(~__tmp_2609_0~0)| ~__tmp_2609_0~0)) (<= 0 main_~main__t~0)) [2020-10-29 09:41:54,578 INFO L274 CegarLoopResult]: For program point L892(lines 892 2907) no Hoare annotation was computed. [2020-10-29 09:41:54,578 INFO L274 CegarLoopResult]: For program point L1883(lines 1883 2755) no Hoare annotation was computed. [2020-10-29 09:41:54,578 INFO L274 CegarLoopResult]: For program point L1817(lines 1817 2765) no Hoare annotation was computed. [2020-10-29 09:41:54,578 INFO L274 CegarLoopResult]: For program point L2148(lines 2148 2714) no Hoare annotation was computed. [2020-10-29 09:41:54,578 INFO L274 CegarLoopResult]: For program point L1025(lines 1025 2887) no Hoare annotation was computed. [2020-10-29 09:41:54,578 INFO L274 CegarLoopResult]: For program point L959(lines 959 2897) no Hoare annotation was computed. [2020-10-29 09:41:54,578 INFO L274 CegarLoopResult]: For program point L2413(lines 2413 2673) no Hoare annotation was computed. [2020-10-29 09:41:54,578 INFO L274 CegarLoopResult]: For program point L1290(lines 1290 2846) no Hoare annotation was computed. [2020-10-29 09:41:54,579 INFO L270 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: false [2020-10-29 09:41:54,579 INFO L274 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-10-29 09:41:54,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:41:54 BoogieIcfgContainer [2020-10-29 09:41:54,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:41:54,604 INFO L168 Benchmark]: Toolchain (without parser) took 62487.24 ms. Allocated memory was 125.8 MB in the beginning and 859.8 MB in the end (delta: 734.0 MB). Free memory was 99.9 MB in the beginning and 565.7 MB in the end (delta: -465.8 MB). Peak memory consumption was 269.0 MB. Max. memory is 8.0 GB. [2020-10-29 09:41:54,604 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 125.8 MB. Free memory is still 84.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:41:54,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1034.83 ms. Allocated memory was 125.8 MB in the beginning and 165.7 MB in the end (delta: 39.8 MB). Free memory was 99.3 MB in the beginning and 138.7 MB in the end (delta: -39.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. [2020-10-29 09:41:54,605 INFO L168 Benchmark]: Boogie Preprocessor took 146.87 ms. Allocated memory is still 165.7 MB. Free memory was 138.7 MB in the beginning and 133.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-29 09:41:54,606 INFO L168 Benchmark]: RCFGBuilder took 1650.22 ms. Allocated memory is still 165.7 MB. Free memory was 133.9 MB in the beginning and 77.4 MB in the end (delta: 56.5 MB). Peak memory consumption was 58.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:41:54,606 INFO L168 Benchmark]: TraceAbstraction took 59643.63 ms. Allocated memory was 165.7 MB in the beginning and 859.8 MB in the end (delta: 694.2 MB). Free memory was 76.9 MB in the beginning and 565.7 MB in the end (delta: -488.8 MB). Peak memory consumption was 205.8 MB. Max. memory is 8.0 GB. [2020-10-29 09:41:54,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 125.8 MB. Free memory is still 84.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1034.83 ms. Allocated memory was 125.8 MB in the beginning and 165.7 MB in the end (delta: 39.8 MB). Free memory was 99.3 MB in the beginning and 138.7 MB in the end (delta: -39.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 146.87 ms. Allocated memory is still 165.7 MB. Free memory was 138.7 MB in the beginning and 133.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1650.22 ms. Allocated memory is still 165.7 MB. Free memory was 133.9 MB in the beginning and 77.4 MB in the end (delta: 56.5 MB). Peak memory consumption was 58.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 59643.63 ms. Allocated memory was 165.7 MB in the beginning and 859.8 MB in the end (delta: 694.2 MB). Free memory was 76.9 MB in the beginning and 565.7 MB in the end (delta: -488.8 MB). Peak memory consumption was 205.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 64]: Loop Invariant Derived loop invariant: (!(main__tagbuf_len == main__t) && main__t < main__tagbuf_len + 1) && 0 <= main__t - InvariantResult [Line: 2591]: Loop Invariant Derived loop invariant: ((54 <= main__t && __VERIFIER_assert__cond == 1) && !(main__tagbuf_len == main__t)) && main__t < main__tagbuf_len + 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((\old(__tmp_3904_0) == __tmp_3904_0 && \old(__return_2598) == __return_2598) && \old(__tmp_3904_1) == __tmp_3904_1) && \old(__tmp_2609_0) == __tmp_2609_0) || 0 <= main__t - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: ((1 <= __VERIFIER_assert__cond && !(__VERIFIER_assert__cond == 0)) && 1 <= main__t) && (main__t + 1 <= main__tagbuf_len || main__tagbuf_len == main__t) - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: (((1 <= __VERIFIER_assert__cond && !(__VERIFIER_assert__cond == 0)) && 1 <= main__t) && !(main__tagbuf_len == main__t)) && main__t < main__tagbuf_len + 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: main__tagbuf_len == main__t && 0 <= main__t - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 317 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 58.9s, OverallIterations: 18, TraceHistogramMax: 1, AutomataDifference: 34.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2597 SDtfs, 16528 SDslu, 944 SDs, 0 SdLazy, 14189 SolverSat, 4530 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 425 GetRequests, 61 SyntacticMatches, 113 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2005 ImplicationChecksByTransitivity, 15.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=313occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 18 MinimizatonAttempts, 96 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 44 PreInvPairs, 54 NumberOfFragments, 171 HoareAnnotationTreeSize, 44 FomulaSimplifications, 3403 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 27 FomulaSimplificationsInter, 749 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 781 NumberOfCodeBlocks, 781 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 763 ConstructedInterpolants, 0 QuantifiedInterpolants, 438699 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 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...