/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/eca-rers2012/Problem10_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 06:41:14,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 06:41:14,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 06:41:14,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 06:41:14,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 06:41:14,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 06:41:14,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 06:41:14,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 06:41:14,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 06:41:14,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 06:41:14,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 06:41:14,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 06:41:14,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 06:41:14,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 06:41:14,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 06:41:14,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 06:41:14,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 06:41:14,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 06:41:14,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 06:41:14,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 06:41:14,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 06:41:14,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 06:41:14,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 06:41:14,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 06:41:14,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 06:41:14,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 06:41:14,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 06:41:14,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 06:41:14,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 06:41:14,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 06:41:14,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 06:41:14,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 06:41:14,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 06:41:14,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 06:41:14,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 06:41:14,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 06:41:14,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 06:41:14,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 06:41:14,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 06:41:14,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 06:41:14,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 06:41:14,255 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 06:41:14,315 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 06:41:14,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 06:41:14,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 06:41:14,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 06:41:14,321 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 06:41:14,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 06:41:14,322 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 06:41:14,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 06:41:14,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 06:41:14,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 06:41:14,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 06:41:14,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 06:41:14,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 06:41:14,324 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 06:41:14,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 06:41:14,324 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 06:41:14,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 06:41:14,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 06:41:14,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 06:41:14,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 06:41:14,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 06:41:14,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 06:41:14,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 06:41:14,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 06:41:14,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 06:41:14,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 06:41:14,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 06:41:14,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 06:41:14,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 06:41:14,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 06:41:14,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 06:41:14,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 06:41:14,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 06:41:14,813 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 06:41:14,814 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 06:41:14,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label49.c [2020-10-29 06:41:14,894 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a851f3d49/e4b7edb50b0c40d38c87e0dcc06a2b6d/FLAG6314dce8d [2020-10-29 06:41:15,612 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 06:41:15,613 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label49.c [2020-10-29 06:41:15,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a851f3d49/e4b7edb50b0c40d38c87e0dcc06a2b6d/FLAG6314dce8d [2020-10-29 06:41:15,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a851f3d49/e4b7edb50b0c40d38c87e0dcc06a2b6d [2020-10-29 06:41:15,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 06:41:15,872 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 06:41:15,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 06:41:15,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 06:41:15,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 06:41:15,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:41:15" (1/1) ... [2020-10-29 06:41:15,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@396e584c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:41:15, skipping insertion in model container [2020-10-29 06:41:15,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:41:15" (1/1) ... [2020-10-29 06:41:15,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 06:41:15,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 06:41:16,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:41:16,502 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 06:41:16,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:41:16,658 INFO L208 MainTranslator]: Completed translation [2020-10-29 06:41:16,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:41:16 WrapperNode [2020-10-29 06:41:16,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 06:41:16,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 06:41:16,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 06:41:16,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 06:41:16,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:41:16" (1/1) ... [2020-10-29 06:41:16,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:41:16" (1/1) ... [2020-10-29 06:41:16,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:41:16" (1/1) ... [2020-10-29 06:41:16,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:41:16" (1/1) ... [2020-10-29 06:41:16,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:41:16" (1/1) ... [2020-10-29 06:41:16,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:41:16" (1/1) ... [2020-10-29 06:41:16,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:41:16" (1/1) ... [2020-10-29 06:41:16,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 06:41:16,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 06:41:16,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 06:41:16,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 06:41:16,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:41:16" (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 06:41:16,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 06:41:16,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 06:41:16,905 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 06:41:16,905 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 06:41:16,905 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 06:41:16,906 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 06:41:16,906 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 06:41:16,906 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 06:41:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 06:41:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 06:41:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 06:41:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 06:41:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 06:41:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 06:41:16,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 06:41:16,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 06:41:16,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 06:41:16,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 06:41:16,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 06:41:18,523 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 06:41:18,524 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 06:41:18,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:41:18 BoogieIcfgContainer [2020-10-29 06:41:18,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 06:41:18,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 06:41:18,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 06:41:18,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 06:41:18,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:41:15" (1/3) ... [2020-10-29 06:41:18,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fbcf1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:41:18, skipping insertion in model container [2020-10-29 06:41:18,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:41:16" (2/3) ... [2020-10-29 06:41:18,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fbcf1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:41:18, skipping insertion in model container [2020-10-29 06:41:18,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:41:18" (3/3) ... [2020-10-29 06:41:18,539 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label49.c [2020-10-29 06:41:18,552 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 06:41:18,557 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 06:41:18,572 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 06:41:18,622 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 06:41:18,623 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 06:41:18,623 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 06:41:18,623 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 06:41:18,623 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 06:41:18,623 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 06:41:18,623 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 06:41:18,624 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 06:41:18,661 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-29 06:41:18,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-29 06:41:18,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:41:18,673 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] [2020-10-29 06:41:18,674 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:41:18,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:41:18,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1635763374, now seen corresponding path program 1 times [2020-10-29 06:41:18,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:41:18,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614479871] [2020-10-29 06:41:18,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:41:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:19,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:19,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:19,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-29 06:41:19,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:19,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 521 [2020-10-29 06:41:19,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:19,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:19,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:41:19,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:41:19,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-29 06:41:19,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 06:41:19,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:41:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:19,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:19,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:19,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:41:19,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:19,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 06:41:19,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:19,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:19,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:41:19,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:41:19,758 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 06:41:19,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614479871] [2020-10-29 06:41:19,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:41:19,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 06:41:19,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903909127] [2020-10-29 06:41:19,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 06:41:19,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:41:19,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 06:41:19,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 06:41:19,792 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-29 06:41:21,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:41:21,746 INFO L93 Difference]: Finished difference Result 593 states and 1011 transitions. [2020-10-29 06:41:21,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:41:21,749 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-10-29 06:41:21,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:41:21,764 INFO L225 Difference]: With dead ends: 593 [2020-10-29 06:41:21,764 INFO L226 Difference]: Without dead ends: 297 [2020-10-29 06:41:21,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:41:21,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-10-29 06:41:21,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2020-10-29 06:41:21,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-29 06:41:21,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 408 transitions. [2020-10-29 06:41:21,852 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 408 transitions. Word has length 29 [2020-10-29 06:41:21,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:41:21,852 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 408 transitions. [2020-10-29 06:41:21,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 06:41:21,853 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 408 transitions. [2020-10-29 06:41:21,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-29 06:41:21,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:41:21,858 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:41:21,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 06:41:21,859 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:41:21,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:41:21,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1919403665, now seen corresponding path program 1 times [2020-10-29 06:41:21,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:41:21,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315370754] [2020-10-29 06:41:21,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:41:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:21,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:22,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:22,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:22,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 06:41:22,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:41:22,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-10-29 06:41:22,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:22,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:22,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 06:41:22,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:41:22,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-29 06:41:22,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:41:23,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:41:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:23,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:23,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:23,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:41:23,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:23,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 06:41:23,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:23,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:23,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:23,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:23,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:41:23,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:41:23,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:41:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:23,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:23,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:23,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:23,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:41:23,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:41:23,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-29 06:41:23,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:23,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:41:23,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:23,368 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 06:41:23,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315370754] [2020-10-29 06:41:23,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:41:23,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:41:23,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875404940] [2020-10-29 06:41:23,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:41:23,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:41:23,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:41:23,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:41:23,376 INFO L87 Difference]: Start difference. First operand 297 states and 408 transitions. Second operand 5 states. [2020-10-29 06:41:25,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:41:25,029 INFO L93 Difference]: Finished difference Result 733 states and 1039 transitions. [2020-10-29 06:41:25,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:41:25,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2020-10-29 06:41:25,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:41:25,038 INFO L225 Difference]: With dead ends: 733 [2020-10-29 06:41:25,038 INFO L226 Difference]: Without dead ends: 442 [2020-10-29 06:41:25,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:41:25,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-29 06:41:25,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-29 06:41:25,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-29 06:41:25,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 597 transitions. [2020-10-29 06:41:25,098 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 597 transitions. Word has length 99 [2020-10-29 06:41:25,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:41:25,099 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 597 transitions. [2020-10-29 06:41:25,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:41:25,099 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 597 transitions. [2020-10-29 06:41:25,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-29 06:41:25,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:41:25,104 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:41:25,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 06:41:25,105 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:41:25,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:41:25,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1444312243, now seen corresponding path program 1 times [2020-10-29 06:41:25,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:41:25,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674902321] [2020-10-29 06:41:25,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:41:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:25,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:25,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:25,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:25,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:41:25,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:41:25,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-29 06:41:25,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:25,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:25,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:25,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-29 06:41:25,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 06:41:25,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:25,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:41:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:25,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:25,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:25,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:41:25,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:25,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:41:25,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:25,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:25,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:25,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:25,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:25,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:25,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:41:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:25,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:25,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:25,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 06:41:25,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:25,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-29 06:41:25,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:25,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:25,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:41:25,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:41:25,888 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:41:25,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674902321] [2020-10-29 06:41:25,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:41:25,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:41:25,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081353896] [2020-10-29 06:41:25,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:41:25,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:41:25,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:41:25,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:41:25,892 INFO L87 Difference]: Start difference. First operand 442 states and 597 transitions. Second operand 5 states. [2020-10-29 06:41:27,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:41:27,148 INFO L93 Difference]: Finished difference Result 758 states and 1047 transitions. [2020-10-29 06:41:27,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:41:27,151 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2020-10-29 06:41:27,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:41:27,160 INFO L225 Difference]: With dead ends: 758 [2020-10-29 06:41:27,160 INFO L226 Difference]: Without dead ends: 442 [2020-10-29 06:41:27,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:41:27,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-29 06:41:27,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-29 06:41:27,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-29 06:41:27,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 594 transitions. [2020-10-29 06:41:27,221 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 594 transitions. Word has length 108 [2020-10-29 06:41:27,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:41:27,225 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 594 transitions. [2020-10-29 06:41:27,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:41:27,225 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 594 transitions. [2020-10-29 06:41:27,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-29 06:41:27,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:41:27,233 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:41:27,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 06:41:27,234 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:41:27,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:41:27,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1045269777, now seen corresponding path program 1 times [2020-10-29 06:41:27,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:41:27,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111311494] [2020-10-29 06:41:27,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:41:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:27,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:27,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:28,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:28,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-29 06:41:28,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:41:28,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 953 [2020-10-29 06:41:28,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:28,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:41:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:41:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 06:41:28,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:28,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:41:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:28,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:28,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:28,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:41:28,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:28,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 06:41:28,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:28,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:28,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:28,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:28,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:41:28,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:28,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:41:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:28,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:28,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:28,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 06:41:28,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:28,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-29 06:41:28,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:28,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:41:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 06:41:28,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:41:28,650 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:41:28,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1111311494] [2020-10-29 06:41:28,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:41:28,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 06:41:28,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807908356] [2020-10-29 06:41:28,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:41:28,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:41:28,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:41:28,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:41:28,660 INFO L87 Difference]: Start difference. First operand 442 states and 594 transitions. Second operand 7 states. [2020-10-29 06:41:30,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:41:30,727 INFO L93 Difference]: Finished difference Result 1055 states and 1499 transitions. [2020-10-29 06:41:30,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:41:30,728 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-29 06:41:30,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:41:30,734 INFO L225 Difference]: With dead ends: 1055 [2020-10-29 06:41:30,734 INFO L226 Difference]: Without dead ends: 762 [2020-10-29 06:41:30,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:41:30,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-10-29 06:41:30,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 740. [2020-10-29 06:41:30,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2020-10-29 06:41:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 911 transitions. [2020-10-29 06:41:30,803 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 911 transitions. Word has length 110 [2020-10-29 06:41:30,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:41:30,805 INFO L481 AbstractCegarLoop]: Abstraction has 740 states and 911 transitions. [2020-10-29 06:41:30,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:41:30,805 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 911 transitions. [2020-10-29 06:41:30,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-29 06:41:30,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:41:30,819 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:41:30,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 06:41:30,819 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:41:30,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:41:30,820 INFO L82 PathProgramCache]: Analyzing trace with hash 266403664, now seen corresponding path program 1 times [2020-10-29 06:41:30,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:41:30,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946178453] [2020-10-29 06:41:30,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:41:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:30,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:31,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:31,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:31,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:31,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-29 06:41:31,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:41:31,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 831 [2020-10-29 06:41:31,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:31,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-29 06:41:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 06:41:31,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:41:31,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:41:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:31,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:31,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:31,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:41:31,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:31,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 06:41:31,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:31,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:31,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:31,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:31,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:31,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:41:31,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:41:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:31,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:31,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:31,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:41:31,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:31,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 06:41:31,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:31,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:41:31,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:31,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 06:41:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:31,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:32,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:32,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:41:32,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:32,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-29 06:41:32,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:32,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:32,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:32,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:41:32,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 06:41:32,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:32,175 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:41:32,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946178453] [2020-10-29 06:41:32,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:41:32,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:41:32,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144533148] [2020-10-29 06:41:32,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 06:41:32,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:41:32,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 06:41:32,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:41:32,179 INFO L87 Difference]: Start difference. First operand 740 states and 911 transitions. Second operand 8 states. [2020-10-29 06:41:34,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:41:34,967 INFO L93 Difference]: Finished difference Result 1643 states and 2159 transitions. [2020-10-29 06:41:34,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 06:41:34,968 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 171 [2020-10-29 06:41:34,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:41:34,975 INFO L225 Difference]: With dead ends: 1643 [2020-10-29 06:41:34,975 INFO L226 Difference]: Without dead ends: 1052 [2020-10-29 06:41:34,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 06:41:34,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-10-29 06:41:35,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1040. [2020-10-29 06:41:35,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-10-29 06:41:35,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1299 transitions. [2020-10-29 06:41:35,019 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1299 transitions. Word has length 171 [2020-10-29 06:41:35,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:41:35,020 INFO L481 AbstractCegarLoop]: Abstraction has 1040 states and 1299 transitions. [2020-10-29 06:41:35,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 06:41:35,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1299 transitions. [2020-10-29 06:41:35,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-29 06:41:35,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:41:35,023 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:41:35,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 06:41:35,024 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:41:35,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:41:35,024 INFO L82 PathProgramCache]: Analyzing trace with hash 208891620, now seen corresponding path program 1 times [2020-10-29 06:41:35,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:41:35,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1613713951] [2020-10-29 06:41:35,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:41:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:35,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:35,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:35,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:36,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:36,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-29 06:41:36,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:41:36,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1091 [2020-10-29 06:41:36,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:36,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:36,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:36,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-29 06:41:36,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 06:41:36,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:36,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:41:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:36,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:36,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:36,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:41:36,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:36,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:41:36,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:36,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:36,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:36,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:36,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:36,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:36,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:41:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:36,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:36,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:36,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:41:36,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:36,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 06:41:36,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:36,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:36,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:36,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:36,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:41:36,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:36,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 06:41:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:36,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:36,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:36,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-29 06:41:36,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:36,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-29 06:41:36,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:36,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:41:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-29 06:41:36,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:41:36,716 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:41:36,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1613713951] [2020-10-29 06:41:36,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:41:36,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:41:36,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253046903] [2020-10-29 06:41:36,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:41:36,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:41:36,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:41:36,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:41:36,719 INFO L87 Difference]: Start difference. First operand 1040 states and 1299 transitions. Second operand 7 states. [2020-10-29 06:41:38,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:41:38,570 INFO L93 Difference]: Finished difference Result 2245 states and 2867 transitions. [2020-10-29 06:41:38,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:41:38,571 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-10-29 06:41:38,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:41:38,580 INFO L225 Difference]: With dead ends: 2245 [2020-10-29 06:41:38,580 INFO L226 Difference]: Without dead ends: 1354 [2020-10-29 06:41:38,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:41:38,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2020-10-29 06:41:38,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1340. [2020-10-29 06:41:38,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1340 states. [2020-10-29 06:41:38,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1638 transitions. [2020-10-29 06:41:38,634 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1638 transitions. Word has length 181 [2020-10-29 06:41:38,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:41:38,635 INFO L481 AbstractCegarLoop]: Abstraction has 1340 states and 1638 transitions. [2020-10-29 06:41:38,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:41:38,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1638 transitions. [2020-10-29 06:41:38,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-29 06:41:38,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:41:38,640 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:41:38,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 06:41:38,640 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:41:38,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:41:38,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1895930614, now seen corresponding path program 1 times [2020-10-29 06:41:38,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:41:38,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995122953] [2020-10-29 06:41:38,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:41:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:38,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:38,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:39,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:39,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-29 06:41:39,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:41:39,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1200 [2020-10-29 06:41:39,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:39,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:39,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:41:39,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:41:39,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 06:41:39,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:40,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:41:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:40,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:40,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:40,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:41:40,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:40,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:41:40,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:40,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:40,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:41:40,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:41:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:40,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:40,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:40,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:41:40,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:40,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-29 06:41:40,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:40,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:40,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:40,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:40,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:41:40,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:40,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:41:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:40,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:40,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:40,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:40,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:41:40,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:41:40,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-29 06:41:40,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:40,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:40,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 06:41:40,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:41:40,503 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-29 06:41:40,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995122953] [2020-10-29 06:41:40,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:41:40,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 06:41:40,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411089725] [2020-10-29 06:41:40,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 06:41:40,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:41:40,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 06:41:40,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:41:40,508 INFO L87 Difference]: Start difference. First operand 1340 states and 1638 transitions. Second operand 6 states. [2020-10-29 06:41:42,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:41:42,833 INFO L93 Difference]: Finished difference Result 2533 states and 3127 transitions. [2020-10-29 06:41:42,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 06:41:42,836 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2020-10-29 06:41:42,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:41:42,846 INFO L225 Difference]: With dead ends: 2533 [2020-10-29 06:41:42,846 INFO L226 Difference]: Without dead ends: 1342 [2020-10-29 06:41:42,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:41:42,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2020-10-29 06:41:42,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1338. [2020-10-29 06:41:42,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1338 states. [2020-10-29 06:41:42,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1541 transitions. [2020-10-29 06:41:42,902 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1541 transitions. Word has length 216 [2020-10-29 06:41:42,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:41:42,903 INFO L481 AbstractCegarLoop]: Abstraction has 1338 states and 1541 transitions. [2020-10-29 06:41:42,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 06:41:42,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1541 transitions. [2020-10-29 06:41:42,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-10-29 06:41:42,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:41:42,910 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:41:42,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 06:41:42,911 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:41:42,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:41:42,911 INFO L82 PathProgramCache]: Analyzing trace with hash -856188042, now seen corresponding path program 1 times [2020-10-29 06:41:42,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:41:42,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85362999] [2020-10-29 06:41:42,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:41:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:43,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:43,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:43,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:44,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:44,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-10-29 06:41:44,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:41:44,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1708 [2020-10-29 06:41:44,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:44,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:44,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:44,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:41:44,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 06:41:44,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:44,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:41:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:44,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:44,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:44,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:41:44,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:44,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:41:44,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:44,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:44,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:44,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:44,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:44,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:44,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:41:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:44,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:45,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:45,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:41:45,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:45,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-29 06:41:45,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:45,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:45,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:45,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:45,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:41:45,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:45,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:41:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:45,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:45,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:45,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-29 06:41:45,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:45,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-29 06:41:45,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:45,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:41:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-29 06:41:45,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:45,558 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:41:45,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85362999] [2020-10-29 06:41:45,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:41:45,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:41:45,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922723936] [2020-10-29 06:41:45,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:41:45,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:41:45,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:41:45,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:41:45,561 INFO L87 Difference]: Start difference. First operand 1338 states and 1541 transitions. Second operand 7 states. [2020-10-29 06:41:48,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:41:48,013 INFO L93 Difference]: Finished difference Result 3443 states and 4053 transitions. [2020-10-29 06:41:48,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:41:48,016 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 280 [2020-10-29 06:41:48,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:41:48,029 INFO L225 Difference]: With dead ends: 3443 [2020-10-29 06:41:48,029 INFO L226 Difference]: Without dead ends: 2254 [2020-10-29 06:41:48,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:41:48,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2020-10-29 06:41:48,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 2095. [2020-10-29 06:41:48,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2095 states. [2020-10-29 06:41:48,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2388 transitions. [2020-10-29 06:41:48,108 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2388 transitions. Word has length 280 [2020-10-29 06:41:48,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:41:48,109 INFO L481 AbstractCegarLoop]: Abstraction has 2095 states and 2388 transitions. [2020-10-29 06:41:48,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:41:48,109 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2388 transitions. [2020-10-29 06:41:48,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-29 06:41:48,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:41:48,118 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:41:48,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 06:41:48,118 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:41:48,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:41:48,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1438108531, now seen corresponding path program 1 times [2020-10-29 06:41:48,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:41:48,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988781288] [2020-10-29 06:41:48,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:41:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:48,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:48,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:48,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:48,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:50,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:50,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-10-29 06:41:50,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:41:50,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1939 [2020-10-29 06:41:50,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:50,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:50,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:50,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-10-29 06:41:50,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 06:41:50,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:50,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:41:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:50,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:50,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:50,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:41:50,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:50,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:41:50,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:50,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:50,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:50,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:50,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:50,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:50,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:41:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:50,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:50,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:50,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:41:50,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:50,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 06:41:50,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:50,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:50,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:50,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 06:41:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:50,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:50,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:50,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 06:41:50,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:50,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-29 06:41:50,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:50,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 06:41:50,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:50,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-29 06:41:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:50,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:50,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:50,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 06:41:50,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:50,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 06:41:50,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:50,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:50,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:50,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:41:50,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:41:50,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:50,755 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-29 06:41:50,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988781288] [2020-10-29 06:41:50,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:41:50,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:41:50,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298941994] [2020-10-29 06:41:50,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 06:41:50,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:41:50,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 06:41:50,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:41:50,758 INFO L87 Difference]: Start difference. First operand 2095 states and 2388 transitions. Second operand 8 states. [2020-10-29 06:41:53,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:41:53,887 INFO L93 Difference]: Finished difference Result 4520 states and 5269 transitions. [2020-10-29 06:41:53,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 06:41:53,888 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 284 [2020-10-29 06:41:53,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:41:53,898 INFO L225 Difference]: With dead ends: 4520 [2020-10-29 06:41:53,898 INFO L226 Difference]: Without dead ends: 1986 [2020-10-29 06:41:53,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-29 06:41:53,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2020-10-29 06:41:53,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1803. [2020-10-29 06:41:53,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1803 states. [2020-10-29 06:41:53,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2006 transitions. [2020-10-29 06:41:53,967 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2006 transitions. Word has length 284 [2020-10-29 06:41:53,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:41:53,968 INFO L481 AbstractCegarLoop]: Abstraction has 1803 states and 2006 transitions. [2020-10-29 06:41:53,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 06:41:53,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2006 transitions. [2020-10-29 06:41:53,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-10-29 06:41:53,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:41:53,975 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:41:53,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 06:41:53,976 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:41:53,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:41:53,976 INFO L82 PathProgramCache]: Analyzing trace with hash 592672550, now seen corresponding path program 1 times [2020-10-29 06:41:53,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:41:53,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364939809] [2020-10-29 06:41:53,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:41:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:54,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:54,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:55,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:55,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-10-29 06:41:55,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:41:55,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1061 [2020-10-29 06:41:55,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:55,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 06:41:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:41:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-29 06:41:55,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:55,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:41:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:55,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:55,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:55,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:41:55,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:55,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:41:55,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:55,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:55,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:55,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:55,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:55,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:55,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:41:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:55,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:55,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:55,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:41:55,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:55,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 06:41:55,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:55,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:41:55,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:55,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:41:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:55,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:55,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:55,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-29 06:41:55,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:55,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-29 06:41:55,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:55,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 06:41:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:41:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-29 06:41:55,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:56,012 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 139 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:41:56,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [364939809] [2020-10-29 06:41:56,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:41:56,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:41:56,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591925201] [2020-10-29 06:41:56,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 06:41:56,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:41:56,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 06:41:56,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:41:56,016 INFO L87 Difference]: Start difference. First operand 1803 states and 2006 transitions. Second operand 8 states. [2020-10-29 06:41:56,157 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-29 06:41:58,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:41:58,347 INFO L93 Difference]: Finished difference Result 3143 states and 3529 transitions. [2020-10-29 06:41:58,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:41:58,348 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 285 [2020-10-29 06:41:58,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:41:58,363 INFO L225 Difference]: With dead ends: 3143 [2020-10-29 06:41:58,363 INFO L226 Difference]: Without dead ends: 2977 [2020-10-29 06:41:58,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:41:58,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2020-10-29 06:41:58,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 2546. [2020-10-29 06:41:58,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2546 states. [2020-10-29 06:41:58,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 2898 transitions. [2020-10-29 06:41:58,442 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 2898 transitions. Word has length 285 [2020-10-29 06:41:58,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:41:58,443 INFO L481 AbstractCegarLoop]: Abstraction has 2546 states and 2898 transitions. [2020-10-29 06:41:58,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 06:41:58,443 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 2898 transitions. [2020-10-29 06:41:58,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-10-29 06:41:58,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:41:58,450 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:41:58,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 06:41:58,450 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:41:58,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:41:58,451 INFO L82 PathProgramCache]: Analyzing trace with hash 774561501, now seen corresponding path program 1 times [2020-10-29 06:41:58,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:41:58,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309220039] [2020-10-29 06:41:58,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:41:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:58,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:58,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:58,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:00,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:02,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:02,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 305 [2020-10-29 06:42:02,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:42:02,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3954 [2020-10-29 06:42:02,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:02,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:42:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:42:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-29 06:42:02,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:02,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:02,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:02,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:02,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:02,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:02,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:42:02,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:02,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:02,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:02,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:02,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:02,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:02,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:42:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:02,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:02,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:02,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:42:02,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:02,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 06:42:02,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:02,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:02,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:02,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:42:02,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:02,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:42:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:02,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:02,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:02,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:42:02,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:02,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 06:42:02,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:02,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:02,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:02,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:42:02,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 06:42:02,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:02,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-29 06:42:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:02,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:03,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:03,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 06:42:03,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:03,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 06:42:03,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:03,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:03,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:03,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:42:03,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:42:03,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:03,460 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 202 proven. 71 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 06:42:03,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1309220039] [2020-10-29 06:42:03,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:42:03,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:42:03,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069978431] [2020-10-29 06:42:03,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 06:42:03,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:03,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 06:42:03,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:42:03,464 INFO L87 Difference]: Start difference. First operand 2546 states and 2898 transitions. Second operand 8 states. [2020-10-29 06:42:05,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:42:05,866 INFO L93 Difference]: Finished difference Result 5253 states and 6008 transitions. [2020-10-29 06:42:05,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 06:42:05,866 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 289 [2020-10-29 06:42:05,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:42:05,881 INFO L225 Difference]: With dead ends: 5253 [2020-10-29 06:42:05,881 INFO L226 Difference]: Without dead ends: 2856 [2020-10-29 06:42:05,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-29 06:42:05,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2020-10-29 06:42:05,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2842. [2020-10-29 06:42:05,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2842 states. [2020-10-29 06:42:05,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 3200 transitions. [2020-10-29 06:42:05,970 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 3200 transitions. Word has length 289 [2020-10-29 06:42:05,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:42:05,971 INFO L481 AbstractCegarLoop]: Abstraction has 2842 states and 3200 transitions. [2020-10-29 06:42:05,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 06:42:05,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 3200 transitions. [2020-10-29 06:42:05,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-29 06:42:05,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:42:05,979 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:42:05,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 06:42:05,980 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:42:05,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:42:05,981 INFO L82 PathProgramCache]: Analyzing trace with hash 2137125149, now seen corresponding path program 1 times [2020-10-29 06:42:05,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:42:05,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141203370] [2020-10-29 06:42:05,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:42:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:06,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:06,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:07,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:08,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:08,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-29 06:42:08,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:42:08,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2275 [2020-10-29 06:42:08,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:08,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:08,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:08,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-29 06:42:08,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 06:42:08,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:08,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:08,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:08,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:08,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:08,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:08,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:42:08,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:08,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:08,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:08,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:08,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:08,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:42:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:08,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:08,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:08,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:42:08,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:08,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 06:42:08,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:08,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:08,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:08,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:08,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:08,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:08,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:42:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:08,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:08,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:08,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 06:42:08,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:08,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 06:42:08,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:08,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:08,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:08,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:08,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 06:42:08,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:08,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-29 06:42:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:08,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:08,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:08,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 06:42:08,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:08,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-29 06:42:08,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:08,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:08,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:08,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:42:08,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:42:08,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:08,968 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 208 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-29 06:42:08,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141203370] [2020-10-29 06:42:08,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:42:08,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:42:08,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162637727] [2020-10-29 06:42:08,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 06:42:08,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:08,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 06:42:08,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:42:08,970 INFO L87 Difference]: Start difference. First operand 2842 states and 3200 transitions. Second operand 8 states. [2020-10-29 06:42:11,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:42:11,400 INFO L93 Difference]: Finished difference Result 6545 states and 7484 transitions. [2020-10-29 06:42:11,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:42:11,401 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 302 [2020-10-29 06:42:11,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:42:11,418 INFO L225 Difference]: With dead ends: 6545 [2020-10-29 06:42:11,419 INFO L226 Difference]: Without dead ends: 3852 [2020-10-29 06:42:11,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:42:11,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3852 states. [2020-10-29 06:42:11,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3852 to 3412. [2020-10-29 06:42:11,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3412 states. [2020-10-29 06:42:11,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 3894 transitions. [2020-10-29 06:42:11,523 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 3894 transitions. Word has length 302 [2020-10-29 06:42:11,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:42:11,524 INFO L481 AbstractCegarLoop]: Abstraction has 3412 states and 3894 transitions. [2020-10-29 06:42:11,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 06:42:11,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 3894 transitions. [2020-10-29 06:42:11,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-29 06:42:11,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:42:11,532 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:42:11,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 06:42:11,533 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:42:11,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:42:11,533 INFO L82 PathProgramCache]: Analyzing trace with hash 2099684066, now seen corresponding path program 1 times [2020-10-29 06:42:11,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:42:11,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875895807] [2020-10-29 06:42:11,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:42:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:11,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:11,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:11,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:11,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-29 06:42:11,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:42:11,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-10-29 06:42:11,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:11,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:11,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:11,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 285 [2020-10-29 06:42:11,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 06:42:11,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:12,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:12,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:12,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:12,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:12,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:12,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:42:12,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:12,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:12,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:12,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:12,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:12,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:12,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:42:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:12,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:12,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:12,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 06:42:12,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:12,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 06:42:12,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:12,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:12,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:12,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 06:42:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:12,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:12,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:12,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-29 06:42:12,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:12,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-29 06:42:12,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:12,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:12,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:12,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:12,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-29 06:42:12,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:42:12,612 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-10-29 06:42:12,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875895807] [2020-10-29 06:42:12,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:42:12,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:42:12,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554004804] [2020-10-29 06:42:12,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:42:12,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:12,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:42:12,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:42:12,616 INFO L87 Difference]: Start difference. First operand 3412 states and 3894 transitions. Second operand 5 states. [2020-10-29 06:42:13,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:42:13,856 INFO L93 Difference]: Finished difference Result 3579 states and 4062 transitions. [2020-10-29 06:42:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:42:13,857 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 302 [2020-10-29 06:42:13,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:42:13,873 INFO L225 Difference]: With dead ends: 3579 [2020-10-29 06:42:13,873 INFO L226 Difference]: Without dead ends: 3412 [2020-10-29 06:42:13,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:42:13,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2020-10-29 06:42:13,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 3410. [2020-10-29 06:42:13,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3410 states. [2020-10-29 06:42:13,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 3879 transitions. [2020-10-29 06:42:13,979 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 3879 transitions. Word has length 302 [2020-10-29 06:42:13,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:42:13,980 INFO L481 AbstractCegarLoop]: Abstraction has 3410 states and 3879 transitions. [2020-10-29 06:42:13,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:42:13,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 3879 transitions. [2020-10-29 06:42:13,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-29 06:42:13,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:42:13,990 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:42:13,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 06:42:13,991 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:42:13,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:42:13,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1370986897, now seen corresponding path program 1 times [2020-10-29 06:42:13,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:42:13,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253576567] [2020-10-29 06:42:13,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:42:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:14,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:14,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:14,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:15,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:15,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 336 [2020-10-29 06:42:15,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:42:15,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1419 [2020-10-29 06:42:15,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:15,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-29 06:42:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 06:42:15,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:15,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:15,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:15,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:15,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:15,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:15,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:42:15,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:15,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:15,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:15,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:15,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:15,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:15,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:42:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:15,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:15,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:15,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 06:42:15,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:15,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 06:42:15,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:15,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:15,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:15,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:15,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:15,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:15,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 06:42:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:15,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:15,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:15,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 06:42:15,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:15,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 06:42:15,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:15,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 06:42:15,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:15,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-29 06:42:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:15,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:15,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:15,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 06:42:15,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:15,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 06:42:15,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:15,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:42:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:42:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:16,168 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 208 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-29 06:42:16,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253576567] [2020-10-29 06:42:16,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:42:16,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:42:16,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194104133] [2020-10-29 06:42:16,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:42:16,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:16,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:42:16,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:42:16,171 INFO L87 Difference]: Start difference. First operand 3410 states and 3879 transitions. Second operand 7 states. [2020-10-29 06:42:18,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:42:18,341 INFO L93 Difference]: Finished difference Result 6834 states and 7805 transitions. [2020-10-29 06:42:18,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:42:18,345 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 320 [2020-10-29 06:42:18,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:42:18,363 INFO L225 Difference]: With dead ends: 6834 [2020-10-29 06:42:18,363 INFO L226 Difference]: Without dead ends: 3573 [2020-10-29 06:42:18,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:42:18,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3573 states. [2020-10-29 06:42:18,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3573 to 3561. [2020-10-29 06:42:18,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3561 states. [2020-10-29 06:42:18,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3561 states to 3561 states and 4036 transitions. [2020-10-29 06:42:18,487 INFO L78 Accepts]: Start accepts. Automaton has 3561 states and 4036 transitions. Word has length 320 [2020-10-29 06:42:18,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:42:18,488 INFO L481 AbstractCegarLoop]: Abstraction has 3561 states and 4036 transitions. [2020-10-29 06:42:18,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:42:18,488 INFO L276 IsEmpty]: Start isEmpty. Operand 3561 states and 4036 transitions. [2020-10-29 06:42:18,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-29 06:42:18,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:42:18,495 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:42:18,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 06:42:18,495 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:42:18,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:42:18,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1336788143, now seen corresponding path program 1 times [2020-10-29 06:42:18,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:42:18,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096908319] [2020-10-29 06:42:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:42:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:18,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:18,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:19,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:20,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:20,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:20,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-29 06:42:20,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:42:20,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1761 [2020-10-29 06:42:20,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:20,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:20,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:20,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-29 06:42:20,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 06:42:20,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:20,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:20,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:20,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:20,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:20,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:20,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:42:20,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:20,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:20,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:20,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:20,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:20,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:20,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:42:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:20,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:20,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:20,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 06:42:20,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:20,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 06:42:20,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:20,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:20,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:20,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:20,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:20,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:20,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 06:42:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:20,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:20,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:20,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 06:42:20,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:20,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 06:42:20,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:20,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:20,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:20,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:20,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 06:42:20,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:42:20,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-29 06:42:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:20,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:20,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:20,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 06:42:20,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:20,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 06:42:20,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:20,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:42:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 06:42:20,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:20,817 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 229 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-29 06:42:20,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096908319] [2020-10-29 06:42:20,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:42:20,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:42:20,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766889059] [2020-10-29 06:42:20,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:42:20,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:20,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:42:20,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:42:20,819 INFO L87 Difference]: Start difference. First operand 3561 states and 4036 transitions. Second operand 7 states. [2020-10-29 06:42:22,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:42:22,877 INFO L93 Difference]: Finished difference Result 7412 states and 8456 transitions. [2020-10-29 06:42:22,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:42:22,879 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 330 [2020-10-29 06:42:22,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:42:22,897 INFO L225 Difference]: With dead ends: 7412 [2020-10-29 06:42:22,897 INFO L226 Difference]: Without dead ends: 3855 [2020-10-29 06:42:22,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:42:22,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2020-10-29 06:42:22,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3851. [2020-10-29 06:42:22,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3851 states. [2020-10-29 06:42:23,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 4373 transitions. [2020-10-29 06:42:23,007 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 4373 transitions. Word has length 330 [2020-10-29 06:42:23,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:42:23,008 INFO L481 AbstractCegarLoop]: Abstraction has 3851 states and 4373 transitions. [2020-10-29 06:42:23,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:42:23,008 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 4373 transitions. [2020-10-29 06:42:23,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-29 06:42:23,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:42:23,015 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:42:23,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 06:42:23,016 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:42:23,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:42:23,016 INFO L82 PathProgramCache]: Analyzing trace with hash -728984479, now seen corresponding path program 1 times [2020-10-29 06:42:23,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:42:23,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823938168] [2020-10-29 06:42:23,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:42:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:23,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:23,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:23,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:23,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 354 [2020-10-29 06:42:23,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:42:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-10-29 06:42:23,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:23,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 323 [2020-10-29 06:42:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 06:42:23,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:23,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:23,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:23,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:23,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:23,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:23,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:42:23,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:23,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:23,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:23,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:23,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:23,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:23,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:42:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:23,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:23,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:23,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 06:42:23,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:23,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 06:42:23,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:23,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:23,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:23,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 06:42:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:23,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:23,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:23,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 06:42:23,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:23,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 06:42:23,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:23,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:23,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:23,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-29 06:42:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:23,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:23,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:23,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 06:42:23,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:23,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 06:42:23,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:23,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 06:42:23,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-10-29 06:42:23,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823938168] [2020-10-29 06:42:23,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:42:23,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:42:23,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267196600] [2020-10-29 06:42:23,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:42:23,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:23,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:42:23,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:42:23,996 INFO L87 Difference]: Start difference. First operand 3851 states and 4373 transitions. Second operand 5 states. [2020-10-29 06:42:24,963 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-29 06:42:25,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:42:25,505 INFO L93 Difference]: Finished difference Result 3997 states and 4519 transitions. [2020-10-29 06:42:25,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:42:25,506 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 338 [2020-10-29 06:42:25,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:42:25,519 INFO L225 Difference]: With dead ends: 3997 [2020-10-29 06:42:25,520 INFO L226 Difference]: Without dead ends: 3847 [2020-10-29 06:42:25,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:42:25,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3847 states. [2020-10-29 06:42:25,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3847 to 3847. [2020-10-29 06:42:25,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3847 states. [2020-10-29 06:42:25,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3847 states to 3847 states and 4347 transitions. [2020-10-29 06:42:25,610 INFO L78 Accepts]: Start accepts. Automaton has 3847 states and 4347 transitions. Word has length 338 [2020-10-29 06:42:25,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:42:25,611 INFO L481 AbstractCegarLoop]: Abstraction has 3847 states and 4347 transitions. [2020-10-29 06:42:25,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:42:25,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3847 states and 4347 transitions. [2020-10-29 06:42:25,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-10-29 06:42:25,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:42:25,619 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:42:25,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 06:42:25,619 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:42:25,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:42:25,620 INFO L82 PathProgramCache]: Analyzing trace with hash 914885477, now seen corresponding path program 1 times [2020-10-29 06:42:25,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:42:25,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625089049] [2020-10-29 06:42:25,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:42:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:25,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:26,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:27,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:27,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:27,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:27,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 356 [2020-10-29 06:42:27,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:42:27,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2136 [2020-10-29 06:42:27,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:27,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-29 06:42:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 06:42:27,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:27,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:27,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:27,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:27,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:27,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:42:27,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:27,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:27,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:27,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:27,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:27,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:42:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:28,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:28,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:28,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 06:42:28,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:28,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 06:42:28,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:28,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:28,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:28,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 06:42:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:28,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:28,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:28,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:42:28,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:28,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 06:42:28,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:28,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 06:42:28,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:28,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-29 06:42:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:28,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:28,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:28,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 06:42:28,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:28,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-29 06:42:28,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:28,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:28,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:28,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:42:28,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 06:42:28,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 239 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-29 06:42:28,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625089049] [2020-10-29 06:42:28,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:42:28,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:42:28,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162228168] [2020-10-29 06:42:28,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:42:28,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:28,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:42:28,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:42:28,487 INFO L87 Difference]: Start difference. First operand 3847 states and 4347 transitions. Second operand 7 states. [2020-10-29 06:42:30,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:42:30,911 INFO L93 Difference]: Finished difference Result 8419 states and 9604 transitions. [2020-10-29 06:42:30,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:42:30,915 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 340 [2020-10-29 06:42:30,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:42:30,943 INFO L225 Difference]: With dead ends: 8419 [2020-10-29 06:42:30,943 INFO L226 Difference]: Without dead ends: 4721 [2020-10-29 06:42:30,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:42:30,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4721 states. [2020-10-29 06:42:31,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4721 to 4576. [2020-10-29 06:42:31,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4576 states. [2020-10-29 06:42:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 5166 transitions. [2020-10-29 06:42:31,070 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 5166 transitions. Word has length 340 [2020-10-29 06:42:31,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:42:31,070 INFO L481 AbstractCegarLoop]: Abstraction has 4576 states and 5166 transitions. [2020-10-29 06:42:31,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:42:31,071 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 5166 transitions. [2020-10-29 06:42:31,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-10-29 06:42:31,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:42:31,080 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:42:31,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 06:42:31,080 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:42:31,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:42:31,081 INFO L82 PathProgramCache]: Analyzing trace with hash 635191605, now seen corresponding path program 1 times [2020-10-29 06:42:31,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:42:31,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893287325] [2020-10-29 06:42:31,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:42:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:31,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:31,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:32,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:32,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 357 [2020-10-29 06:42:32,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:42:32,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 878 [2020-10-29 06:42:32,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:32,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:32,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:32,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 326 [2020-10-29 06:42:32,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 06:42:32,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:32,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:32,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:32,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:32,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:32,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:32,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:42:32,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:32,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:32,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:32,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:32,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:32,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:32,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:42:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:32,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:32,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:32,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 06:42:32,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:32,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 06:42:32,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:32,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:32,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:32,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:32,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:32,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:32,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 06:42:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:32,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:32,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:32,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 06:42:32,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:32,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 06:42:32,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:32,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:32,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:32,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 06:42:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:32,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:32,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:32,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 06:42:32,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:32,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 06:42:32,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:32,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:32,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:32,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:32,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 06:42:32,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:32,542 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-10-29 06:42:32,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893287325] [2020-10-29 06:42:32,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:42:32,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:42:32,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760611963] [2020-10-29 06:42:32,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:42:32,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:32,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:42:32,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:42:32,555 INFO L87 Difference]: Start difference. First operand 4576 states and 5166 transitions. Second operand 5 states. [2020-10-29 06:42:34,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:42:34,084 INFO L93 Difference]: Finished difference Result 9722 states and 11031 transitions. [2020-10-29 06:42:34,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:42:34,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 341 [2020-10-29 06:42:34,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:42:34,105 INFO L225 Difference]: With dead ends: 9722 [2020-10-29 06:42:34,105 INFO L226 Difference]: Without dead ends: 5150 [2020-10-29 06:42:34,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:42:34,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5150 states. [2020-10-29 06:42:34,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5150 to 5148. [2020-10-29 06:42:34,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5148 states. [2020-10-29 06:42:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5148 states to 5148 states and 5827 transitions. [2020-10-29 06:42:34,225 INFO L78 Accepts]: Start accepts. Automaton has 5148 states and 5827 transitions. Word has length 341 [2020-10-29 06:42:34,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:42:34,226 INFO L481 AbstractCegarLoop]: Abstraction has 5148 states and 5827 transitions. [2020-10-29 06:42:34,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:42:34,226 INFO L276 IsEmpty]: Start isEmpty. Operand 5148 states and 5827 transitions. [2020-10-29 06:42:34,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-29 06:42:34,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:42:34,235 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:42:34,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 06:42:34,235 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:42:34,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:42:34,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1642434953, now seen corresponding path program 1 times [2020-10-29 06:42:34,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:42:34,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295488855] [2020-10-29 06:42:34,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:42:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:34,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:34,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:34,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:34,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 359 [2020-10-29 06:42:34,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:42:34,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 603 [2020-10-29 06:42:34,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:34,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:34,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:34,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 328 [2020-10-29 06:42:34,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 06:42:34,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:35,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:35,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:35,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:35,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:35,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:35,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 06:42:35,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:35,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:35,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:35,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:42:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:35,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:35,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:35,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:42:35,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:35,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 06:42:35,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:35,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:35,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:35,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:35,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:35,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:35,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:42:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:35,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:35,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:35,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:42:35,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:35,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 06:42:35,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:35,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:35,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:35,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-29 06:42:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:35,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:35,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:35,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 06:42:35,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:35,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 06:42:35,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:35,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:42:35,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:35,406 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-29 06:42:35,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295488855] [2020-10-29 06:42:35,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:42:35,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 06:42:35,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828696746] [2020-10-29 06:42:35,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 06:42:35,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:35,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 06:42:35,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:42:35,411 INFO L87 Difference]: Start difference. First operand 5148 states and 5827 transitions. Second operand 6 states. [2020-10-29 06:42:37,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:42:37,637 INFO L93 Difference]: Finished difference Result 10144 states and 11495 transitions. [2020-10-29 06:42:37,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 06:42:37,638 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 343 [2020-10-29 06:42:37,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:42:37,640 INFO L225 Difference]: With dead ends: 10144 [2020-10-29 06:42:37,640 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 06:42:37,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:42:37,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 06:42:37,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 06:42:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 06:42:37,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 06:42:37,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 343 [2020-10-29 06:42:37,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:42:37,659 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 06:42:37,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 06:42:37,659 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 06:42:37,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 06:42:37,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 06:42:37,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 06:42:38,403 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 218 [2020-10-29 06:42:39,394 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 218 [2020-10-29 06:42:40,137 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 55 [2020-10-29 06:42:40,255 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 20 [2020-10-29 06:42:41,111 WARN L193 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 64 [2020-10-29 06:42:42,809 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 263 DAG size of output: 66 [2020-10-29 06:42:43,693 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 64 [2020-10-29 06:42:43,697 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 06:42:43,698 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 06:42:43,698 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 06:42:43,698 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 06:42:43,698 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:42:43,698 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)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-29 06:42:43,698 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:42:43,699 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-29 06:42:43,699 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-29 06:42:43,699 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-29 06:42:43,699 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-29 06:42:43,699 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-29 06:42:43,699 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-29 06:42:43,699 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-29 06:42:43,699 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-29 06:42:43,699 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-29 06:42:43,699 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-29 06:42:43,699 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-29 06:42:43,699 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-29 06:42:43,699 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-29 06:42:43,700 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,700 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,700 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,700 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,700 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,700 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,700 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-29 06:42:43,700 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-29 06:42:43,700 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-29 06:42:43,700 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-29 06:42:43,700 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-29 06:42:43,701 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-29 06:42:43,701 INFO L270 CegarLoopResult]: At program point L72(line 72) the Hoare annotation is: (let ((.cse2 (= 2 |old(~a10~0)|))) (let ((.cse6 (not (<= 505225 |old(~a1~0)|))) (.cse8 (not (= 0 |old(~a10~0)|))) (.cse0 (not (= 9 |old(~a19~0)|))) (.cse4 (not .cse2)) (.cse7 (not (= 3 |old(~a10~0)|))) (.cse5 (not (<= |old(~a19~0)| 8))) (.cse3 (not (<= |old(~a1~0)| 36))) (.cse1 (not (<= 2 |old(~a10~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse4) (or (not (<= |old(~a19~0)| 7)) .cse5 .cse1) (or .cse6 .cse5 .cse4) (or .cse7 (= 10 |old(~a19~0)|) .cse6) (or .cse5 (not (<= 4 |old(~a10~0)|)) .cse1) (or .cse0 .cse8) (not (= |old(~a10~0)| 1)) (or .cse5 .cse8) (or .cse3 .cse8) (or .cse0 (not (<= 118 |old(~a1~0)|)) .cse4) (or .cse7 .cse5 .cse1) (or .cse5 .cse3 .cse1)))) [2020-10-29 06:42:43,701 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-29 06:42:43,701 INFO L274 CegarLoopResult]: For program point L72-1(line 72) no Hoare annotation was computed. [2020-10-29 06:42:43,701 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-29 06:42:43,701 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-29 06:42:43,701 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-29 06:42:43,701 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,702 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,702 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,702 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,702 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,702 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-29 06:42:43,702 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-29 06:42:43,702 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-29 06:42:43,702 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-29 06:42:43,702 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-29 06:42:43,702 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-29 06:42:43,702 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-29 06:42:43,703 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-29 06:42:43,703 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-29 06:42:43,703 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-29 06:42:43,703 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-29 06:42:43,703 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-29 06:42:43,703 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-29 06:42:43,703 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-29 06:42:43,703 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,703 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,703 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,703 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,703 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,704 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-29 06:42:43,704 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-29 06:42:43,704 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-29 06:42:43,704 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-29 06:42:43,704 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-29 06:42:43,704 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-29 06:42:43,704 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-29 06:42:43,704 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-29 06:42:43,704 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-29 06:42:43,704 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-29 06:42:43,704 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,704 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,704 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,705 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,705 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,705 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-29 06:42:43,705 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-29 06:42:43,705 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-29 06:42:43,705 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-29 06:42:43,705 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-29 06:42:43,705 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-29 06:42:43,705 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-29 06:42:43,705 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-29 06:42:43,705 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-29 06:42:43,705 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-29 06:42:43,706 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-29 06:42:43,706 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-29 06:42:43,706 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-29 06:42:43,706 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,706 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,706 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,706 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,706 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,706 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-29 06:42:43,706 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-29 06:42:43,706 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-29 06:42:43,706 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-29 06:42:43,707 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-29 06:42:43,707 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,707 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,707 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-29 06:42:43,707 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-29 06:42:43,707 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-29 06:42:43,707 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-29 06:42:43,707 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,707 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,707 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,707 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,708 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,708 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-29 06:42:43,708 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-29 06:42:43,708 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-29 06:42:43,708 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-29 06:42:43,708 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-29 06:42:43,708 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-29 06:42:43,708 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-29 06:42:43,708 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-29 06:42:43,708 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-29 06:42:43,709 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-29 06:42:43,709 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-29 06:42:43,709 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-29 06:42:43,709 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-29 06:42:43,709 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,709 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,709 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,709 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,709 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-29 06:42:43,709 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,709 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,710 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-29 06:42:43,710 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-29 06:42:43,710 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-29 06:42:43,710 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-29 06:42:43,710 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-29 06:42:43,710 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-29 06:42:43,710 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-29 06:42:43,710 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-29 06:42:43,710 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-29 06:42:43,710 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-29 06:42:43,710 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-29 06:42:43,710 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-29 06:42:43,710 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-29 06:42:43,711 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,711 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,711 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,711 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,711 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,711 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,711 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-29 06:42:43,711 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse7 (not (<= |old(~a1~0)| 36))) (.cse6 (not (<= 4 |old(~a10~0)|))) (.cse0 (not (<= |old(~a19~0)| 8))) (.cse5 (not (= 0 |old(~a10~0)|))) (.cse3 (not (= 3 |old(~a10~0)|))) (.cse9 (not (<= 505225 |old(~a1~0)|))) (.cse2 (not (<= 2 |old(~a10~0)|))) (.cse1 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse4 (not (= 9 |old(~a19~0)|))) (.cse8 (not (= 2 |old(~a10~0)|)))) (and (or (not (<= |old(~a19~0)| 7)) .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1) (or .cse3 .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse5) (or .cse6 .cse1 .cse4) (or .cse0 .cse1 .cse7 .cse2) (or .cse1 .cse7 .cse5) (or .cse1 .cse7 .cse4 .cse8) (or .cse0 .cse6 .cse1 .cse2) (or .cse0 .cse9 .cse1 .cse2) (or .cse1 .cse4 .cse5) (or (not (= |old(~a10~0)| 1)) .cse1) (or .cse3 (= 10 |old(~a19~0)|) .cse9 .cse1 .cse2) (or .cse1 .cse4 (not (<= 118 |old(~a1~0)|)) .cse8))) [2020-10-29 06:42:43,712 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-29 06:42:43,712 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-29 06:42:43,712 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-29 06:42:43,712 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-29 06:42:43,712 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-29 06:42:43,712 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-29 06:42:43,712 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-29 06:42:43,712 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-29 06:42:43,712 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-29 06:42:43,712 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-29 06:42:43,713 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-29 06:42:43,713 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-29 06:42:43,713 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-29 06:42:43,713 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,713 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,713 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,713 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,713 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,713 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,713 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-29 06:42:43,713 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-29 06:42:43,713 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-29 06:42:43,714 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-29 06:42:43,714 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-29 06:42:43,714 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-29 06:42:43,714 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-29 06:42:43,714 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-29 06:42:43,714 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-29 06:42:43,714 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-29 06:42:43,714 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-29 06:42:43,714 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-29 06:42:43,714 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-29 06:42:43,714 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,715 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,715 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,715 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,715 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,715 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,715 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-29 06:42:43,715 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-29 06:42:43,715 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-29 06:42:43,715 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-29 06:42:43,715 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-29 06:42:43,715 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-29 06:42:43,715 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-29 06:42:43,716 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-29 06:42:43,716 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-29 06:42:43,716 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-29 06:42:43,716 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-29 06:42:43,716 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-29 06:42:43,716 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,716 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,716 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,716 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,716 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,716 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:42:43,717 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:42:43,717 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-29 06:42:43,717 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 06:42:43,717 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:42:43,717 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-29 06:42:43,717 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:42:43,717 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse7 (= 0 |old(~a10~0)|))) (let ((.cse0 (= ~a10~0 0)) (.cse9 (= ~a10~0 3)) (.cse8 (<= ~a1~0 36)) (.cse1 (= ~a19~0 9)) (.cse2 (or (<= (+ |old(~a1~0)| 13) 0) .cse7)) (.cse3 (<= |old(~a1~0)| 218)) (.cse5 (not (= 2 |old(~a10~0)|))) (.cse10 (<= 505225 ~a1~0)) (.cse4 (<= ~a19~0 8)) (.cse6 (<= 2 ~a10~0))) (or (and .cse0 .cse1) (and .cse2 .cse3 (<= 4 ~a10~0) .cse4 .cse5 .cse6) (and (<= 118 ~a1~0) .cse1 .cse6) (not .cse7) (and .cse8 .cse0) (not (= 23 |old(~a1~0)|)) (and .cse1 (not (= ~a10~0 2)) .cse6) (and .cse0 .cse4) (and .cse2 .cse3 .cse9 .cse4 .cse5 .cse6) (= ~a10~0 1) (and .cse10 .cse9 (not (= ~a19~0 10))) (and .cse2 .cse3 .cse8 .cse4 .cse5 .cse6) (and .cse8 .cse1 .cse6) (not (= 9 |old(~a19~0)|)) (and .cse2 .cse3 (<= ~a19~0 7) .cse4 .cse5 .cse6) (and .cse10 .cse4 .cse6)))) [2020-10-29 06:42:43,718 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-29 06:42:43,718 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-29 06:42:43,718 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse7 (= 0 |old(~a10~0)|))) (let ((.cse0 (= ~a10~0 0)) (.cse9 (= ~a10~0 3)) (.cse8 (<= ~a1~0 36)) (.cse1 (= ~a19~0 9)) (.cse2 (or (<= (+ |old(~a1~0)| 13) 0) .cse7)) (.cse3 (<= |old(~a1~0)| 218)) (.cse5 (not (= 2 |old(~a10~0)|))) (.cse10 (<= 505225 ~a1~0)) (.cse4 (<= ~a19~0 8)) (.cse6 (<= 2 ~a10~0))) (or (and .cse0 .cse1) (and .cse2 .cse3 (<= 4 ~a10~0) .cse4 .cse5 .cse6) (and (<= 118 ~a1~0) .cse1 .cse6) (not .cse7) (and .cse8 .cse0) (not (= 23 |old(~a1~0)|)) (and .cse1 (not (= ~a10~0 2)) .cse6) (and .cse0 .cse4) (and .cse2 .cse3 .cse9 .cse4 .cse5 .cse6) (= ~a10~0 1) (and .cse10 .cse9 (not (= ~a19~0 10))) (and .cse2 .cse3 .cse8 .cse4 .cse5 .cse6) (and .cse8 .cse1 .cse6) (not (= 9 |old(~a19~0)|)) (and .cse2 .cse3 (<= ~a19~0 7) .cse4 .cse5 .cse6) (and .cse10 .cse4 .cse6)))) [2020-10-29 06:42:43,718 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:42:43,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 06:42:43 BoogieIcfgContainer [2020-10-29 06:42:43,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 06:42:43,742 INFO L168 Benchmark]: Toolchain (without parser) took 87876.09 ms. Allocated memory was 158.3 MB in the beginning and 1.1 GB in the end (delta: 925.9 MB). Free memory was 131.1 MB in the beginning and 948.9 MB in the end (delta: -817.8 MB). Peak memory consumption was 654.4 MB. Max. memory is 8.0 GB. [2020-10-29 06:42:43,743 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 158.3 MB. Free memory is still 130.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 06:42:43,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.12 ms. Allocated memory is still 158.3 MB. Free memory was 130.5 MB in the beginning and 103.9 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-29 06:42:43,744 INFO L168 Benchmark]: Boogie Preprocessor took 150.14 ms. Allocated memory is still 158.3 MB. Free memory was 103.9 MB in the beginning and 135.7 MB in the end (delta: -31.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. [2020-10-29 06:42:43,745 INFO L168 Benchmark]: RCFGBuilder took 1716.30 ms. Allocated memory was 158.3 MB in the beginning and 200.3 MB in the end (delta: 41.9 MB). Free memory was 135.7 MB in the beginning and 160.9 MB in the end (delta: -25.2 MB). Peak memory consumption was 89.1 MB. Max. memory is 8.0 GB. [2020-10-29 06:42:43,745 INFO L168 Benchmark]: TraceAbstraction took 85210.50 ms. Allocated memory was 200.3 MB in the beginning and 1.1 GB in the end (delta: 883.9 MB). Free memory was 160.3 MB in the beginning and 948.9 MB in the end (delta: -788.5 MB). Peak memory consumption was 640.7 MB. Max. memory is 8.0 GB. [2020-10-29 06:42:43,748 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 158.3 MB. Free memory is still 130.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 783.12 ms. Allocated memory is still 158.3 MB. Free memory was 130.5 MB in the beginning and 103.9 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 150.14 ms. Allocated memory is still 158.3 MB. Free memory was 103.9 MB in the beginning and 135.7 MB in the end (delta: -31.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1716.30 ms. Allocated memory was 158.3 MB in the beginning and 200.3 MB in the end (delta: 41.9 MB). Free memory was 135.7 MB in the beginning and 160.9 MB in the end (delta: -25.2 MB). Peak memory consumption was 89.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 85210.50 ms. Allocated memory was 200.3 MB in the beginning and 1.1 GB in the end (delta: 883.9 MB). Free memory was 160.3 MB in the beginning and 948.9 MB in the end (delta: -788.5 MB). Peak memory consumption was 640.7 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: 584]: Loop Invariant Derived loop invariant: (((((((((((((((a10 == 0 && a19 == 9) || ((((((\old(a1) + 13 <= 0 || 0 == \old(a10)) && \old(a1) <= 218) && 4 <= a10) && a19 <= 8) && !(2 == \old(a10))) && 2 <= a10)) || ((118 <= a1 && a19 == 9) && 2 <= a10)) || !(0 == \old(a10))) || (a1 <= 36 && a10 == 0)) || !(23 == \old(a1))) || ((a19 == 9 && !(a10 == 2)) && 2 <= a10)) || (a10 == 0 && a19 <= 8)) || ((((((\old(a1) + 13 <= 0 || 0 == \old(a10)) && \old(a1) <= 218) && a10 == 3) && a19 <= 8) && !(2 == \old(a10))) && 2 <= a10)) || a10 == 1) || ((505225 <= a1 && a10 == 3) && !(a19 == 10))) || ((((((\old(a1) + 13 <= 0 || 0 == \old(a10)) && \old(a1) <= 218) && a1 <= 36) && a19 <= 8) && !(2 == \old(a10))) && 2 <= a10)) || ((a1 <= 36 && a19 == 9) && 2 <= a10)) || !(9 == \old(a19))) || ((((((\old(a1) + 13 <= 0 || 0 == \old(a10)) && \old(a1) <= 218) && a19 <= 7) && a19 <= 8) && !(2 == \old(a10))) && 2 <= a10)) || ((505225 <= a1 && a19 <= 8) && 2 <= a10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 79.0s, OverallIterations: 19, TraceHistogramMax: 4, AutomataDifference: 40.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 538 SDtfs, 7674 SDslu, 604 SDs, 0 SdLazy, 17796 SolverSat, 1965 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 332 GetRequests, 177 SyntacticMatches, 4 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5148occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 19 MinimizatonAttempts, 1444 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 547 PreInvPairs, 637 NumberOfFragments, 927 HoareAnnotationTreeSize, 547 FomulaSimplifications, 11378 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 12077 FormulaSimplificationTreeSizeReductionInter, 4.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 33.9s InterpolantComputationTime, 4668 NumberOfCodeBlocks, 4668 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 4649 ConstructedInterpolants, 0 QuantifiedInterpolants, 3472109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 2 PerfectInterpolantSequences, 3496/3615 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...