/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=SHALLOWEST --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_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:32:19,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:32:19,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:32:19,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:32:19,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:32:19,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:32:19,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:32:19,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:32:19,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:32:19,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:32:19,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:32:19,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:32:19,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:32:19,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:32:19,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:32:19,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:32:19,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:32:19,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:32:19,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:32:19,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:32:19,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:32:19,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:32:19,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:32:19,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:32:19,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:32:19,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:32:19,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:32:19,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:32:19,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:32:19,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:32:19,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:32:19,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:32:19,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:32:19,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:32:19,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:32:19,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:32:19,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:32:19,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:32:19,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:32:19,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:32:19,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:32:19,712 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 [2020-10-26 22:32:19,766 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:32:19,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:32:19,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:32:19,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:32:19,772 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:32:19,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:32:19,773 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:32:19,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:32:19,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:32:19,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:32:19,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:32:19,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:32:19,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:32:19,775 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:32:19,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:32:19,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:32:19,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:32:19,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:32:19,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:32:19,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:32:19,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:32:19,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:32:19,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:32:19,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:32:19,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:32:19,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:32:19,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:32:19,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:32:19,779 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:32:19,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:32:20,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:32:20,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:32:20,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:32:20,266 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:32:20,267 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:32:20,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label32.c [2020-10-26 22:32:20,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5b35f7fe/e75181eb7e6549daaca8d19ab0ce4c5f/FLAG89293f644 [2020-10-26 22:32:21,183 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:32:21,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label32.c [2020-10-26 22:32:21,200 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5b35f7fe/e75181eb7e6549daaca8d19ab0ce4c5f/FLAG89293f644 [2020-10-26 22:32:21,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5b35f7fe/e75181eb7e6549daaca8d19ab0ce4c5f [2020-10-26 22:32:21,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:32:21,441 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:32:21,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:32:21,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:32:21,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:32:21,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:32:21" (1/1) ... [2020-10-26 22:32:21,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c34af26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:21, skipping insertion in model container [2020-10-26 22:32:21,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:32:21" (1/1) ... [2020-10-26 22:32:21,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:32:21,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:32:22,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:32:22,093 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:32:22,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:32:22,249 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:32:22,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:22 WrapperNode [2020-10-26 22:32:22,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:32:22,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:32:22,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:32:22,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:32:22,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:22" (1/1) ... [2020-10-26 22:32:22,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:22" (1/1) ... [2020-10-26 22:32:22,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:22" (1/1) ... [2020-10-26 22:32:22,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:22" (1/1) ... [2020-10-26 22:32:22,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:22" (1/1) ... [2020-10-26 22:32:22,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:22" (1/1) ... [2020-10-26 22:32:22,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:22" (1/1) ... [2020-10-26 22:32:22,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:32:22,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:32:22,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:32:22,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:32:22,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:22" (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 [2020-10-26 22:32:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:32:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:32:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:32:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:32:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:32:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:32:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:32:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:32:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:32:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:32:22,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:32:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:32:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:32:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:32:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:32:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:32:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:32:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:32:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:32:23,929 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:32:23,930 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:32:23,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:32:23 BoogieIcfgContainer [2020-10-26 22:32:23,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:32:23,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:32:23,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:32:23,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:32:23,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:32:21" (1/3) ... [2020-10-26 22:32:23,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21abc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:32:23, skipping insertion in model container [2020-10-26 22:32:23,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:22" (2/3) ... [2020-10-26 22:32:23,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21abc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:32:23, skipping insertion in model container [2020-10-26 22:32:23,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:32:23" (3/3) ... [2020-10-26 22:32:23,942 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label32.c [2020-10-26 22:32:23,954 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:32:23,960 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:32:23,980 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:32:24,009 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:32:24,009 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:32:24,010 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:32:24,010 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:32:24,010 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:32:24,010 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:32:24,010 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:32:24,010 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:32:24,034 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:32:24,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-26 22:32:24,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:24,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:24,043 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:24,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:24,049 INFO L82 PathProgramCache]: Analyzing trace with hash -810835380, now seen corresponding path program 1 times [2020-10-26 22:32:24,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:24,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160613414] [2020-10-26 22:32:24,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:24,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:24,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:24,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 22:32:24,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:24,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 594 [2020-10-26 22:32:24,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:24,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-26 22:32:24,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:32:25,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:25,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:25,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:25,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:25,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:25,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 22:32:25,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:25,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:25,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:25,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:25,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:32:25,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160613414] [2020-10-26 22:32:25,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:32:25,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 22:32:25,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243956888] [2020-10-26 22:32:25,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 22:32:25,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:25,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 22:32:25,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 22:32:25,117 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-26 22:32:26,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:26,938 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-26 22:32:26,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:26,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-10-26 22:32:26,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:26,956 INFO L225 Difference]: With dead ends: 586 [2020-10-26 22:32:26,956 INFO L226 Difference]: Without dead ends: 303 [2020-10-26 22:32:26,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:26,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-26 22:32:27,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-26 22:32:27,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-26 22:32:27,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-26 22:32:27,061 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 32 [2020-10-26 22:32:27,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:27,062 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-26 22:32:27,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 22:32:27,062 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-26 22:32:27,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-26 22:32:27,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:27,071 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, 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] [2020-10-26 22:32:27,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:32:27,072 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:27,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:27,075 INFO L82 PathProgramCache]: Analyzing trace with hash -662584880, now seen corresponding path program 1 times [2020-10-26 22:32:27,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:27,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231968425] [2020-10-26 22:32:27,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:27,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:27,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:28,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:28,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-26 22:32:28,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:28,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 907 [2020-10-26 22:32:28,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:28,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 22:32:28,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:28,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-26 22:32:28,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:28,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:28,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:28,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:28,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:28,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:28,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 22:32:28,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:28,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:28,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:28,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:28,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 22:32:28,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:28,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:28,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:28,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:28,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:28,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:28,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-26 22:32:28,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:28,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:28,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:28,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:32:28,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:28,743 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:32:28,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231968425] [2020-10-26 22:32:28,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:28,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:28,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499010422] [2020-10-26 22:32:28,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:32:28,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:28,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:32:28,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:28,750 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 6 states. [2020-10-26 22:32:30,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:30,219 INFO L93 Difference]: Finished difference Result 890 states and 1204 transitions. [2020-10-26 22:32:30,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 22:32:30,221 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2020-10-26 22:32:30,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:30,229 INFO L225 Difference]: With dead ends: 890 [2020-10-26 22:32:30,230 INFO L226 Difference]: Without dead ends: 597 [2020-10-26 22:32:30,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:30,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-10-26 22:32:30,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 591. [2020-10-26 22:32:30,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-26 22:32:30,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 760 transitions. [2020-10-26 22:32:30,291 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 760 transitions. Word has length 102 [2020-10-26 22:32:30,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:30,292 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 760 transitions. [2020-10-26 22:32:30,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:32:30,292 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 760 transitions. [2020-10-26 22:32:30,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-26 22:32:30,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:30,295 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:30,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:32:30,296 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:30,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:30,296 INFO L82 PathProgramCache]: Analyzing trace with hash 479618768, now seen corresponding path program 1 times [2020-10-26 22:32:30,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:30,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135782350] [2020-10-26 22:32:30,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:30,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:30,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:30,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:30,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:32:30,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:30,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 627 [2020-10-26 22:32:30,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:30,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:30,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:32:30,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 22:32:30,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:31,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:31,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:31,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:31,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:31,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:31,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:32:31,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:31,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:31,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:31,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:31,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:31,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:31,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:31,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:31,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:32:31,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:31,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-26 22:32:31,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:31,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:31,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:31,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:32:31,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:31,313 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:32:31,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135782350] [2020-10-26 22:32:31,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:31,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:31,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638104799] [2020-10-26 22:32:31,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:31,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:31,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:31,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:31,316 INFO L87 Difference]: Start difference. First operand 591 states and 760 transitions. Second operand 5 states. [2020-10-26 22:32:32,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:32,433 INFO L93 Difference]: Finished difference Result 1205 states and 1557 transitions. [2020-10-26 22:32:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:32,434 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-10-26 22:32:32,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:32,445 INFO L225 Difference]: With dead ends: 1205 [2020-10-26 22:32:32,446 INFO L226 Difference]: Without dead ends: 597 [2020-10-26 22:32:32,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:32,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-10-26 22:32:32,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 591. [2020-10-26 22:32:32,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-26 22:32:32,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 755 transitions. [2020-10-26 22:32:32,513 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 755 transitions. Word has length 111 [2020-10-26 22:32:32,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:32,516 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 755 transitions. [2020-10-26 22:32:32,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:32,516 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 755 transitions. [2020-10-26 22:32:32,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-26 22:32:32,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:32,531 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:32,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:32:32,531 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:32,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:32,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1430343120, now seen corresponding path program 1 times [2020-10-26 22:32:32,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:32,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604162629] [2020-10-26 22:32:32,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:32,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:32,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:33,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-26 22:32:33,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:33,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-10-26 22:32:33,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:33,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:33,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:33,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 22:32:33,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:32:33,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:33,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:33,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:33,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:33,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:33,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:33,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:33,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:33,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:33,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:33,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:33,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-26 22:32:33,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:33,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:33,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:33,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:32:33,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:33,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:32:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:33,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:33,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:33,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:32:33,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:33,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-26 22:32:33,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:33,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:33,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:33,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 22:32:33,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:33,996 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:32:33,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604162629] [2020-10-26 22:32:33,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:33,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:33,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606826401] [2020-10-26 22:32:33,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:34,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:34,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:34,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:34,001 INFO L87 Difference]: Start difference. First operand 591 states and 755 transitions. Second operand 7 states. [2020-10-26 22:32:36,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:36,504 INFO L93 Difference]: Finished difference Result 1641 states and 2155 transitions. [2020-10-26 22:32:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:36,505 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2020-10-26 22:32:36,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:36,512 INFO L225 Difference]: With dead ends: 1641 [2020-10-26 22:32:36,513 INFO L226 Difference]: Without dead ends: 1056 [2020-10-26 22:32:36,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:36,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2020-10-26 22:32:36,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 899. [2020-10-26 22:32:36,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2020-10-26 22:32:36,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1147 transitions. [2020-10-26 22:32:36,569 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1147 transitions. Word has length 174 [2020-10-26 22:32:36,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:36,570 INFO L481 AbstractCegarLoop]: Abstraction has 899 states and 1147 transitions. [2020-10-26 22:32:36,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:36,570 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1147 transitions. [2020-10-26 22:32:36,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-26 22:32:36,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:36,575 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:36,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:32:36,575 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:36,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:36,576 INFO L82 PathProgramCache]: Analyzing trace with hash -743449796, now seen corresponding path program 1 times [2020-10-26 22:32:36,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:36,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710232314] [2020-10-26 22:32:36,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:36,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:36,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:37,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:37,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:37,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-26 22:32:37,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:37,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 861 [2020-10-26 22:32:37,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:37,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:37,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:37,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:37,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:37,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:37,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:37,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:37,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:37,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:37,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:32:37,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:37,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:37,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:37,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:37,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:37,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:37,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:37,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:37,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:37,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:37,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-26 22:32:37,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:37,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:37,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:37,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:32:37,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:37,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:32:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:37,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:37,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:37,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:37,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:37,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-26 22:32:37,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:37,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:37,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:37,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:37,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:38,083 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:32:38,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710232314] [2020-10-26 22:32:38,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:38,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:32:38,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788849680] [2020-10-26 22:32:38,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:32:38,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:38,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:32:38,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:32:38,086 INFO L87 Difference]: Start difference. First operand 899 states and 1147 transitions. Second operand 8 states. [2020-10-26 22:32:40,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:40,259 INFO L93 Difference]: Finished difference Result 2396 states and 3081 transitions. [2020-10-26 22:32:40,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:32:40,261 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 184 [2020-10-26 22:32:40,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:40,274 INFO L225 Difference]: With dead ends: 2396 [2020-10-26 22:32:40,274 INFO L226 Difference]: Without dead ends: 1503 [2020-10-26 22:32:40,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:32:40,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2020-10-26 22:32:40,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1352. [2020-10-26 22:32:40,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2020-10-26 22:32:40,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1638 transitions. [2020-10-26 22:32:40,344 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1638 transitions. Word has length 184 [2020-10-26 22:32:40,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:40,346 INFO L481 AbstractCegarLoop]: Abstraction has 1352 states and 1638 transitions. [2020-10-26 22:32:40,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:32:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1638 transitions. [2020-10-26 22:32:40,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-26 22:32:40,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:40,355 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:40,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:32:40,355 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:40,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:40,356 INFO L82 PathProgramCache]: Analyzing trace with hash -748936676, now seen corresponding path program 1 times [2020-10-26 22:32:40,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:40,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145281730] [2020-10-26 22:32:40,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:40,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:40,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:41,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:41,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:44,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:45,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:45,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-26 22:32:45,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:32:45,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4744 [2020-10-26 22:32:45,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:45,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:45,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:45,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:32:45,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:45,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:45,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:45,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:45,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:45,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:45,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 22:32:45,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:45,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:45,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:45,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:45,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:45,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:45,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:45,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:45,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:32:45,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:45,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-26 22:32:45,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:45,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:45,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:45,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-26 22:32:45,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:45,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-26 22:32:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:45,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:45,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:45,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:32:45,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:45,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 22:32:45,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:45,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:45,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:32:45,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:45,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:45,733 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 48 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:32:45,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145281730] [2020-10-26 22:32:45,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:45,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:45,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685644508] [2020-10-26 22:32:45,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:45,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:45,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:45,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:45,738 INFO L87 Difference]: Start difference. First operand 1352 states and 1638 transitions. Second operand 7 states. [2020-10-26 22:32:47,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:47,231 INFO L93 Difference]: Finished difference Result 2869 states and 3478 transitions. [2020-10-26 22:32:47,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:32:47,232 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2020-10-26 22:32:47,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:47,242 INFO L225 Difference]: With dead ends: 2869 [2020-10-26 22:32:47,242 INFO L226 Difference]: Without dead ends: 1523 [2020-10-26 22:32:47,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:32:47,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2020-10-26 22:32:47,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1503. [2020-10-26 22:32:47,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2020-10-26 22:32:47,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1802 transitions. [2020-10-26 22:32:47,317 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1802 transitions. Word has length 209 [2020-10-26 22:32:47,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:47,317 INFO L481 AbstractCegarLoop]: Abstraction has 1503 states and 1802 transitions. [2020-10-26 22:32:47,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:47,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1802 transitions. [2020-10-26 22:32:47,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-10-26 22:32:47,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:47,326 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:47,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:32:47,327 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:47,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:47,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1657687960, now seen corresponding path program 1 times [2020-10-26 22:32:47,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:47,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816938943] [2020-10-26 22:32:47,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:47,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:47,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:47,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:49,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:49,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-26 22:32:49,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:49,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2422 [2020-10-26 22:32:49,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:49,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 22:32:49,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:49,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 22:32:49,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:50,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:50,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:50,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:50,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:50,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:50,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:32:50,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:50,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:50,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:50,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:50,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:50,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:50,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:50,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:50,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:50,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:50,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-26 22:32:50,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:50,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:50,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:50,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:50,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:50,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:50,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:50,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:50,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:32:50,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:50,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-26 22:32:50,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:50,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:32:50,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:50,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:32:50,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:50,879 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 145 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:32:50,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816938943] [2020-10-26 22:32:50,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:50,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:32:50,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243182367] [2020-10-26 22:32:50,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:32:50,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:50,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:32:50,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:32:50,883 INFO L87 Difference]: Start difference. First operand 1503 states and 1802 transitions. Second operand 8 states. [2020-10-26 22:32:52,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:52,972 INFO L93 Difference]: Finished difference Result 3910 states and 4800 transitions. [2020-10-26 22:32:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:32:52,972 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 288 [2020-10-26 22:32:52,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:52,987 INFO L225 Difference]: With dead ends: 3910 [2020-10-26 22:32:52,988 INFO L226 Difference]: Without dead ends: 2536 [2020-10-26 22:32:52,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:52,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2020-10-26 22:32:53,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 2246. [2020-10-26 22:32:53,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2246 states. [2020-10-26 22:32:53,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 2785 transitions. [2020-10-26 22:32:53,074 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 2785 transitions. Word has length 288 [2020-10-26 22:32:53,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:53,074 INFO L481 AbstractCegarLoop]: Abstraction has 2246 states and 2785 transitions. [2020-10-26 22:32:53,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:32:53,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 2785 transitions. [2020-10-26 22:32:53,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-26 22:32:53,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:53,083 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, 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, 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] [2020-10-26 22:32:53,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:32:53,083 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:53,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:53,084 INFO L82 PathProgramCache]: Analyzing trace with hash 573900128, now seen corresponding path program 1 times [2020-10-26 22:32:53,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:53,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081610375] [2020-10-26 22:32:53,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:53,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:53,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:54,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:54,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:58,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:58,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-26 22:32:58,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:32:58,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-26 22:32:58,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:58,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-26 22:32:58,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:58,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:58,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:58,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:58,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:58,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:58,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:58,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:58,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:58,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:58,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:58,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:58,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:58,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:58,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:58,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:58,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:58,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-26 22:32:58,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:58,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:58,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:58,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:58,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:58,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:58,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:58,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:58,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:32:58,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:58,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-26 22:32:58,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:58,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:58,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:58,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-26 22:32:58,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:58,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-26 22:32:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:58,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:58,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:58,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:32:58,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:58,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-26 22:32:58,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:58,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:58,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:32:58,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:58,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:59,166 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 160 proven. 86 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-26 22:32:59,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081610375] [2020-10-26 22:32:59,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:59,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:59,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234306189] [2020-10-26 22:32:59,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:59,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:59,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:59,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:59,171 INFO L87 Difference]: Start difference. First operand 2246 states and 2785 transitions. Second operand 7 states. [2020-10-26 22:33:01,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:01,305 INFO L93 Difference]: Finished difference Result 5094 states and 6500 transitions. [2020-10-26 22:33:01,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:33:01,306 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 324 [2020-10-26 22:33:01,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:01,325 INFO L225 Difference]: With dead ends: 5094 [2020-10-26 22:33:01,325 INFO L226 Difference]: Without dead ends: 2997 [2020-10-26 22:33:01,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:33:01,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2020-10-26 22:33:01,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2985. [2020-10-26 22:33:01,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2985 states. [2020-10-26 22:33:01,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 3602 transitions. [2020-10-26 22:33:01,462 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 3602 transitions. Word has length 324 [2020-10-26 22:33:01,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:01,463 INFO L481 AbstractCegarLoop]: Abstraction has 2985 states and 3602 transitions. [2020-10-26 22:33:01,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:01,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 3602 transitions. [2020-10-26 22:33:01,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-26 22:33:01,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:01,475 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, 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, 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] [2020-10-26 22:33:01,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:33:01,475 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:01,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:01,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1941591144, now seen corresponding path program 1 times [2020-10-26 22:33:01,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:01,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481803300] [2020-10-26 22:33:01,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:01,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:01,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:02,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:03,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:03,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:03,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 359 [2020-10-26 22:33:03,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:33:03,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2184 [2020-10-26 22:33:03,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:03,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:03,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-26 22:33:03,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:33:03,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:03,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:03,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:03,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:03,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:03,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:03,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:33:03,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:03,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:03,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:03,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:03,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:03,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:03,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:03,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:03,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:33:03,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:03,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 22:33:03,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:03,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:03,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:03,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:03,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:03,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:33:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:03,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:04,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:04,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:33:04,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:04,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-26 22:33:04,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:04,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:04,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:04,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:33:04,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:04,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:33:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:04,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:04,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:04,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:04,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:04,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-26 22:33:04,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:04,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:04,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:04,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:33:04,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:04,435 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 248 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-26 22:33:04,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481803300] [2020-10-26 22:33:04,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:04,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:04,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082689626] [2020-10-26 22:33:04,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:04,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:04,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:04,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:04,439 INFO L87 Difference]: Start difference. First operand 2985 states and 3602 transitions. Second operand 7 states. [2020-10-26 22:33:06,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:06,568 INFO L93 Difference]: Finished difference Result 6846 states and 8420 transitions. [2020-10-26 22:33:06,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:33:06,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 343 [2020-10-26 22:33:06,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:06,600 INFO L225 Difference]: With dead ends: 6846 [2020-10-26 22:33:06,600 INFO L226 Difference]: Without dead ends: 4010 [2020-10-26 22:33:06,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:33:06,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4010 states. [2020-10-26 22:33:06,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4010 to 3577. [2020-10-26 22:33:06,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3577 states. [2020-10-26 22:33:06,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3577 states to 3577 states and 4338 transitions. [2020-10-26 22:33:06,737 INFO L78 Accepts]: Start accepts. Automaton has 3577 states and 4338 transitions. Word has length 343 [2020-10-26 22:33:06,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:06,737 INFO L481 AbstractCegarLoop]: Abstraction has 3577 states and 4338 transitions. [2020-10-26 22:33:06,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:06,738 INFO L276 IsEmpty]: Start isEmpty. Operand 3577 states and 4338 transitions. [2020-10-26 22:33:06,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-10-26 22:33:06,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:06,748 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:33:06,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:33:06,749 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:06,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:06,749 INFO L82 PathProgramCache]: Analyzing trace with hash -324915532, now seen corresponding path program 1 times [2020-10-26 22:33:06,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:06,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [243900199] [2020-10-26 22:33:06,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:06,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:07,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:07,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:07,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 362 [2020-10-26 22:33:07,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:07,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 812 [2020-10-26 22:33:07,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:07,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:07,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 328 [2020-10-26 22:33:07,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-26 22:33:07,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:07,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:07,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:07,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:07,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:07,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:07,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 22:33:07,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:07,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:07,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:07,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:07,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:07,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:07,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:07,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:07,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:33:07,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:07,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 22:33:07,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:07,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:07,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:07,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:07,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:07,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:33:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:07,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:07,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:07,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:33:07,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:07,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 22:33:07,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:07,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:07,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:07,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:07,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:07,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-26 22:33:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:07,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:08,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:08,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-26 22:33:08,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:08,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-26 22:33:08,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:08,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:08,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:08,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 22:33:08,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:08,206 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 75 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-26 22:33:08,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [243900199] [2020-10-26 22:33:08,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:08,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:33:08,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189353436] [2020-10-26 22:33:08,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:33:08,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:08,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:33:08,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:33:08,210 INFO L87 Difference]: Start difference. First operand 3577 states and 4338 transitions. Second operand 5 states. [2020-10-26 22:33:09,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:09,635 INFO L93 Difference]: Finished difference Result 7150 states and 8692 transitions. [2020-10-26 22:33:09,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:33:09,636 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 346 [2020-10-26 22:33:09,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:09,657 INFO L225 Difference]: With dead ends: 7150 [2020-10-26 22:33:09,657 INFO L226 Difference]: Without dead ends: 3722 [2020-10-26 22:33:09,669 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 [2020-10-26 22:33:09,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3722 states. [2020-10-26 22:33:09,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3722 to 3428. [2020-10-26 22:33:09,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3428 states. [2020-10-26 22:33:09,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 4053 transitions. [2020-10-26 22:33:09,780 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 4053 transitions. Word has length 346 [2020-10-26 22:33:09,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:09,781 INFO L481 AbstractCegarLoop]: Abstraction has 3428 states and 4053 transitions. [2020-10-26 22:33:09,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:33:09,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 4053 transitions. [2020-10-26 22:33:09,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-10-26 22:33:09,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:09,793 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:33:09,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:33:09,793 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:09,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:09,794 INFO L82 PathProgramCache]: Analyzing trace with hash -619548164, now seen corresponding path program 1 times [2020-10-26 22:33:09,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:09,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734653537] [2020-10-26 22:33:09,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:09,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:10,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:11,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:12,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:12,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 378 [2020-10-26 22:33:12,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:33:12,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2497 [2020-10-26 22:33:12,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:12,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:12,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-26 22:33:12,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 22:33:12,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:12,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:12,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:12,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:12,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:12,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:12,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:33:12,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:12,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:12,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:12,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:12,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:12,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:12,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:12,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:12,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:33:12,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:12,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 22:33:12,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:12,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:12,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:12,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:12,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:12,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:33:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:12,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:12,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:12,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:33:12,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:12,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-26 22:33:12,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:12,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:12,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:12,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:33:12,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:12,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:33:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:12,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:12,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:12,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 22:33:12,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:12,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-26 22:33:12,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:12,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:12,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:12,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 22:33:12,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:13,153 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 267 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-26 22:33:13,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734653537] [2020-10-26 22:33:13,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:13,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:33:13,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712002500] [2020-10-26 22:33:13,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:33:13,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:13,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:33:13,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:33:13,159 INFO L87 Difference]: Start difference. First operand 3428 states and 4053 transitions. Second operand 8 states. [2020-10-26 22:33:15,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:15,262 INFO L93 Difference]: Finished difference Result 7297 states and 8686 transitions. [2020-10-26 22:33:15,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:33:15,263 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 362 [2020-10-26 22:33:15,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:15,287 INFO L225 Difference]: With dead ends: 7297 [2020-10-26 22:33:15,287 INFO L226 Difference]: Without dead ends: 4018 [2020-10-26 22:33:15,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:33:15,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4018 states. [2020-10-26 22:33:15,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4018 to 3571. [2020-10-26 22:33:15,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3571 states. [2020-10-26 22:33:15,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 4236 transitions. [2020-10-26 22:33:15,416 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 4236 transitions. Word has length 362 [2020-10-26 22:33:15,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:15,417 INFO L481 AbstractCegarLoop]: Abstraction has 3571 states and 4236 transitions. [2020-10-26 22:33:15,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:33:15,417 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 4236 transitions. [2020-10-26 22:33:15,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-10-26 22:33:15,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:15,429 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:33:15,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:33:15,430 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:15,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:15,430 INFO L82 PathProgramCache]: Analyzing trace with hash 931383184, now seen corresponding path program 1 times [2020-10-26 22:33:15,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:15,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633829350] [2020-10-26 22:33:15,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:15,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:16,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:16,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:16,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 388 [2020-10-26 22:33:16,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:16,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 932 [2020-10-26 22:33:16,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:16,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:16,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-26 22:33:16,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-26 22:33:16,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:16,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:16,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:16,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:16,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:16,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:16,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:33:16,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:16,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:16,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:16,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:16,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:16,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:33:16,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:16,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 22:33:16,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:16,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:16,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:16,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:16,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:16,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:33:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:16,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:16,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:16,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:33:16,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:16,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 22:33:16,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:16,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:16,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:16,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:16,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:16,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:33:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:16,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:16,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:16,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-26 22:33:16,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:16,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-26 22:33:16,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:16,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:16,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:16,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-26 22:33:16,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:16,937 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 75 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-26 22:33:16,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633829350] [2020-10-26 22:33:16,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:16,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:33:16,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628045245] [2020-10-26 22:33:16,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:33:16,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:16,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:33:16,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:33:16,940 INFO L87 Difference]: Start difference. First operand 3571 states and 4236 transitions. Second operand 5 states. [2020-10-26 22:33:18,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:18,445 INFO L93 Difference]: Finished difference Result 7284 states and 8644 transitions. [2020-10-26 22:33:18,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:33:18,447 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 372 [2020-10-26 22:33:18,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:18,448 INFO L225 Difference]: With dead ends: 7284 [2020-10-26 22:33:18,448 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:33:18,463 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 [2020-10-26 22:33:18,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:33:18,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:33:18,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:33:18,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:33:18,464 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 372 [2020-10-26 22:33:18,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:18,464 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:33:18,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:33:18,464 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:33:18,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:33:18,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:33:18,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:33:18,796 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 136 [2020-10-26 22:33:19,645 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 136 [2020-10-26 22:33:19,971 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 32 [2020-10-26 22:33:20,657 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 42 [2020-10-26 22:33:20,913 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 29 [2020-10-26 22:33:21,162 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 32 [2020-10-26 22:33:21,168 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:33:21,168 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:33:21,168 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:33:21,169 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:33:21,169 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:33:21,169 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)|)) [2020-10-26 22:33:21,169 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:33:21,169 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:33:21,169 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:33:21,170 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:33:21,170 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:33:21,170 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:33:21,170 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:33:21,170 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:33:21,170 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:33:21,170 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:33:21,170 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:33:21,170 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:33:21,170 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:33:21,170 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:33:21,171 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,171 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,171 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,171 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,171 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,171 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,171 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:33:21,171 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:33:21,171 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:33:21,171 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:33:21,172 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:33:21,172 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:33:21,172 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:33:21,172 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:33:21,172 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:33:21,172 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:33:21,172 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:33:21,172 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,172 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,172 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,172 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,173 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,173 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:33:21,173 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:33:21,173 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:33:21,173 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:33:21,173 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:33:21,173 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:33:21,173 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:33:21,173 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:33:21,173 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:33:21,174 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:33:21,174 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:33:21,174 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:33:21,174 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:33:21,174 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:33:21,174 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,174 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,174 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,174 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,174 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,174 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:33:21,175 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:33:21,175 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:33:21,175 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:33:21,175 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:33:21,175 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:33:21,175 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:33:21,175 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:33:21,175 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:33:21,175 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:33:21,175 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,175 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,175 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,175 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,176 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,176 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:33:21,176 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:33:21,176 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:33:21,176 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:33:21,176 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:33:21,176 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:33:21,176 INFO L270 CegarLoopResult]: At program point L81(line 81) the Hoare annotation is: (and (not (= 9 |old(~a19~0)|)) (not (<= |old(~a10~0)| 2)) (or (not (<= (+ |old(~a1~0)| 75821) 0)) (not (<= |old(~a10~0)| 3))) (or (not (= 6 |old(~a19~0)|)) (not (<= |old(~a1~0)| 505272))) (not (= 4 |old(~a10~0)|))) [2020-10-26 22:33:21,176 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:33:21,176 INFO L274 CegarLoopResult]: For program point L81-1(line 81) no Hoare annotation was computed. [2020-10-26 22:33:21,177 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:33:21,177 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:33:21,177 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:33:21,177 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:33:21,177 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:33:21,177 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,177 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,177 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,177 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,177 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,177 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:33:21,177 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:33:21,178 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:33:21,179 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:33:21,179 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:33:21,179 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,179 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,179 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:33:21,180 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:33:21,180 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:33:21,180 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:33:21,180 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,180 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,180 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,180 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,180 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,180 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:33:21,180 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:33:21,181 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:33:21,181 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:33:21,181 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:33:21,181 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:33:21,181 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:33:21,181 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:33:21,181 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:33:21,181 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:33:21,181 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:33:21,181 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:33:21,181 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:33:21,181 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,182 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,182 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,182 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,182 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:33:21,182 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,182 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,182 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:33:21,182 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:33:21,182 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:33:21,182 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:33:21,182 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:33:21,183 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:33:21,183 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:33:21,183 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:33:21,183 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:33:21,183 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:33:21,183 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:33:21,183 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:33:21,183 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:33:21,183 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,183 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,183 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,183 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,183 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,184 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,184 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:33:21,184 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse1 (= ~a1~0 |old(~a1~0)|)) (.cse2 (= ~a10~0 |old(~a10~0)|))) (let ((.cse0 (and .cse1 (= ~a19~0 |old(~a19~0)|) .cse2))) (and (or .cse0 (not (= 4 |old(~a10~0)|))) (or .cse0 (not (<= |old(~a10~0)| 2))) (or (not (<= (+ |old(~a1~0)| 75821) 0)) .cse0 (not (<= |old(~a10~0)| 3))) (or .cse0 (not (= 9 |old(~a19~0)|))) (or (not (= 6 |old(~a19~0)|)) (and .cse1 (= ~a19~0 6) .cse2) (not (<= |old(~a1~0)| 505272)))))) [2020-10-26 22:33:21,184 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:33:21,184 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:33:21,184 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:33:21,184 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:33:21,184 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:33:21,184 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:33:21,185 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:33:21,185 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:33:21,185 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:33:21,185 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:33:21,185 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:33:21,185 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:33:21,185 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:33:21,185 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,185 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,185 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,185 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,185 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,186 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,186 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:33:21,186 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:33:21,186 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:33:21,186 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:33:21,186 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:33:21,186 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:33:21,186 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:33:21,186 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:33:21,186 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:33:21,186 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:33:21,186 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:33:21,186 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:33:21,187 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:33:21,187 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,187 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,187 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,187 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,187 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,187 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,187 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:33:21,187 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:33:21,187 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:33:21,187 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:33:21,187 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:33:21,187 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:33:21,187 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:33:21,188 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:33:21,188 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:33:21,188 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:33:21,188 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:33:21,188 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:33:21,188 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,188 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,188 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,188 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,188 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,188 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:21,188 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:33:21,189 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-26 22:33:21,189 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:33:21,189 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:33:21,189 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)|))) [2020-10-26 22:33:21,189 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:33:21,189 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (or (and (<= (+ ~a1~0 75821) 0) (<= ~a10~0 3)) (not (= 9 |old(~a19~0)|)) (<= ~a10~0 2) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (<= ~a1~0 505272) (= ~a19~0 6)) (not (= 23 |old(~a1~0)|)) (= ~a10~0 4)) [2020-10-26 22:33:21,189 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:33:21,189 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:33:21,189 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (or (and (<= (+ ~a1~0 75821) 0) (<= ~a10~0 3)) (not (= 9 |old(~a19~0)|)) (<= ~a10~0 2) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (<= ~a1~0 505272) (= ~a19~0 6)) (not (= 23 |old(~a1~0)|)) (= ~a10~0 4)) [2020-10-26 22:33:21,189 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:33:21,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:33:21 BoogieIcfgContainer [2020-10-26 22:33:21,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:33:21,213 INFO L168 Benchmark]: Toolchain (without parser) took 59778.35 ms. Allocated memory was 159.4 MB in the beginning and 1.1 GB in the end (delta: 946.9 MB). Free memory was 132.8 MB in the beginning and 566.7 MB in the end (delta: -433.9 MB). Peak memory consumption was 513.9 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:21,214 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 159.4 MB. Free memory is still 132.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:33:21,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 805.29 ms. Allocated memory is still 159.4 MB. Free memory was 132.2 MB in the beginning and 105.5 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:21,215 INFO L168 Benchmark]: Boogie Preprocessor took 148.97 ms. Allocated memory is still 159.4 MB. Free memory was 105.5 MB in the beginning and 100.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:21,216 INFO L168 Benchmark]: RCFGBuilder took 1529.71 ms. Allocated memory is still 159.4 MB. Free memory was 100.8 MB in the beginning and 83.1 MB in the end (delta: 17.6 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:21,217 INFO L168 Benchmark]: TraceAbstraction took 57277.26 ms. Allocated memory was 159.4 MB in the beginning and 1.1 GB in the end (delta: 946.9 MB). Free memory was 82.6 MB in the beginning and 566.7 MB in the end (delta: -484.1 MB). Peak memory consumption was 463.8 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:21,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 159.4 MB. Free memory is still 132.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 805.29 ms. Allocated memory is still 159.4 MB. Free memory was 132.2 MB in the beginning and 105.5 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 148.97 ms. Allocated memory is still 159.4 MB. Free memory was 105.5 MB in the beginning and 100.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1529.71 ms. Allocated memory is still 159.4 MB. Free memory was 100.8 MB in the beginning and 83.1 MB in the end (delta: 17.6 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 57277.26 ms. Allocated memory was 159.4 MB in the beginning and 1.1 GB in the end (delta: 946.9 MB). Free memory was 82.6 MB in the beginning and 566.7 MB in the end (delta: -484.1 MB). Peak memory consumption was 463.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((((a1 + 75821 <= 0 && a10 <= 3) || !(9 == \old(a19))) || a10 <= 2) || a19 == 9) || !(0 == \old(a10))) || (a1 <= 505272 && a19 == 6)) || !(23 == \old(a1))) || a10 == 4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 54.4s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 22.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 320 SDtfs, 4790 SDslu, 375 SDs, 0 SdLazy, 11289 SolverSat, 1240 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3577occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 12 MinimizatonAttempts, 1820 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 346 PreInvPairs, 402 NumberOfFragments, 291 HoareAnnotationTreeSize, 346 FomulaSimplifications, 34873 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6968 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 28.9s InterpolantComputationTime, 2847 NumberOfCodeBlocks, 2847 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2835 ConstructedInterpolants, 0 QuantifiedInterpolants, 2155625 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 2094/2295 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...