/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 00:17:59,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:17:59,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:17:59,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 00:17:59,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 00:17:59,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 00:17:59,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 00:17:59,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 00:17:59,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 00:17:59,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 00:17:59,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 00:17:59,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 00:17:59,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 00:17:59,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 00:17:59,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 00:17:59,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 00:17:59,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 00:17:59,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 00:17:59,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 00:17:59,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 00:17:59,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 00:17:59,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 00:17:59,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 00:17:59,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 00:17:59,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 00:17:59,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 00:17:59,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 00:17:59,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 00:17:59,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 00:17:59,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 00:17:59,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 00:17:59,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 00:17:59,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 00:17:59,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 00:17:59,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 00:17:59,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 00:17:59,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 00:17:59,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 00:17:59,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 00:17:59,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 00:17:59,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 00:17:59,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-24 00:17:59,796 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:17:59,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:17:59,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:17:59,799 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:17:59,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:17:59,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:17:59,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:17:59,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:17:59,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:17:59,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:17:59,800 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:17:59,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:17:59,800 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:17:59,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:17:59,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:17:59,801 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:17:59,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:17:59,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:17:59,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:17:59,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:17:59,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:17:59,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:17:59,802 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:18:00,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:18:00,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:18:00,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:18:00,268 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:18:00,269 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:18:00,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2021-02-24 00:18:00,346 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a639081/d58724278d67416d88f11d0e46d7b13c/FLAG61ebffb74 [2021-02-24 00:18:01,032 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:18:01,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2021-02-24 00:18:01,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a639081/d58724278d67416d88f11d0e46d7b13c/FLAG61ebffb74 [2021-02-24 00:18:01,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a639081/d58724278d67416d88f11d0e46d7b13c [2021-02-24 00:18:01,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:18:01,411 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:18:01,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:18:01,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:18:01,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:18:01,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:18:01" (1/1) ... [2021-02-24 00:18:01,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c0546b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:01, skipping insertion in model container [2021-02-24 00:18:01,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:18:01" (1/1) ... [2021-02-24 00:18:01,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:18:01,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:18:01,601 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i[893,906] [2021-02-24 00:18:01,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:18:01,632 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:18:01,654 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i[893,906] [2021-02-24 00:18:01,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:18:01,709 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:18:01,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:01 WrapperNode [2021-02-24 00:18:01,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:18:01,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:18:01,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:18:01,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:18:01,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:01" (1/1) ... [2021-02-24 00:18:01,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:01" (1/1) ... [2021-02-24 00:18:01,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:01" (1/1) ... [2021-02-24 00:18:01,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:01" (1/1) ... [2021-02-24 00:18:01,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:01" (1/1) ... [2021-02-24 00:18:01,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:01" (1/1) ... [2021-02-24 00:18:01,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:01" (1/1) ... [2021-02-24 00:18:01,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:18:01,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:18:01,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:18:01,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:18:01,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2021-02-24 00:18:01,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:18:01,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:18:01,873 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:18:01,873 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 00:18:01,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 00:18:01,873 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:18:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:18:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:18:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 00:18:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 00:18:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:18:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:18:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 00:18:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 00:18:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 00:18:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:18:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:18:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:18:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:18:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:18:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:18:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:18:02,412 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:18:02,413 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-24 00:18:02,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:18:02 BoogieIcfgContainer [2021-02-24 00:18:02,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:18:02,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:18:02,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:18:02,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:18:02,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:18:01" (1/3) ... [2021-02-24 00:18:02,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5fec35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:18:02, skipping insertion in model container [2021-02-24 00:18:02,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:18:01" (2/3) ... [2021-02-24 00:18:02,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5fec35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:18:02, skipping insertion in model container [2021-02-24 00:18:02,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:18:02" (3/3) ... [2021-02-24 00:18:02,429 INFO L111 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i [2021-02-24 00:18:02,438 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:18:02,443 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 00:18:02,467 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 00:18:02,497 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:18:02,497 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:18:02,497 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:18:02,498 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:18:02,498 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:18:02,498 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:18:02,498 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:18:02,498 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:18:02,518 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2021-02-24 00:18:02,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-24 00:18:02,530 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:02,531 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] [2021-02-24 00:18:02,531 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:02,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:02,539 INFO L82 PathProgramCache]: Analyzing trace with hash 755720551, now seen corresponding path program 1 times [2021-02-24 00:18:02,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:02,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107914228] [2021-02-24 00:18:02,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:02,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:02,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:02,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:02,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:02,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:02,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 00:18:02,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:02,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:02,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:02,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:02,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:02,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:02,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:02,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:02,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:02,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:18:02,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107914228] [2021-02-24 00:18:02,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:02,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 00:18:02,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310660403] [2021-02-24 00:18:02,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 00:18:02,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:02,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 00:18:02,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:18:02,925 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 6 states. [2021-02-24 00:18:03,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:03,752 INFO L93 Difference]: Finished difference Result 151 states and 218 transitions. [2021-02-24 00:18:03,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 00:18:03,755 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2021-02-24 00:18:03,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:03,766 INFO L225 Difference]: With dead ends: 151 [2021-02-24 00:18:03,767 INFO L226 Difference]: Without dead ends: 88 [2021-02-24 00:18:03,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:18:03,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-02-24 00:18:03,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 80. [2021-02-24 00:18:03,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2021-02-24 00:18:03,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 98 transitions. [2021-02-24 00:18:03,849 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 98 transitions. Word has length 32 [2021-02-24 00:18:03,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:03,850 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 98 transitions. [2021-02-24 00:18:03,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 00:18:03,851 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 98 transitions. [2021-02-24 00:18:03,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-24 00:18:03,853 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:03,853 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] [2021-02-24 00:18:03,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:18:03,854 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:03,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:03,855 INFO L82 PathProgramCache]: Analyzing trace with hash 790605812, now seen corresponding path program 1 times [2021-02-24 00:18:03,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:03,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762679952] [2021-02-24 00:18:03,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:03,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:03,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:03,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:03,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:03,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:03,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:03,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:03,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:03,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:03,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:03,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:03,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:03,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:03,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:03,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:04,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:18:04,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762679952] [2021-02-24 00:18:04,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:04,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 00:18:04,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563815860] [2021-02-24 00:18:04,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 00:18:04,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:04,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 00:18:04,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:18:04,011 INFO L87 Difference]: Start difference. First operand 80 states and 98 transitions. Second operand 6 states. [2021-02-24 00:18:04,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:04,389 INFO L93 Difference]: Finished difference Result 92 states and 109 transitions. [2021-02-24 00:18:04,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 00:18:04,389 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2021-02-24 00:18:04,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:04,393 INFO L225 Difference]: With dead ends: 92 [2021-02-24 00:18:04,394 INFO L226 Difference]: Without dead ends: 90 [2021-02-24 00:18:04,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:18:04,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-02-24 00:18:04,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2021-02-24 00:18:04,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2021-02-24 00:18:04,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 104 transitions. [2021-02-24 00:18:04,419 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 104 transitions. Word has length 32 [2021-02-24 00:18:04,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:04,420 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 104 transitions. [2021-02-24 00:18:04,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 00:18:04,420 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 104 transitions. [2021-02-24 00:18:04,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-24 00:18:04,422 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:04,422 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-24 00:18:04,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 00:18:04,423 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:04,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:04,424 INFO L82 PathProgramCache]: Analyzing trace with hash -955547883, now seen corresponding path program 1 times [2021-02-24 00:18:04,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:04,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184001322] [2021-02-24 00:18:04,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:04,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:04,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:04,516 WARN L141 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-02-24 00:18:04,517 WARN L147 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size 3 [2021-02-24 00:18:04,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:04,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:04,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:04,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:04,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:04,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:04,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:04,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:04,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:04,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:04,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:04,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:04,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:18:04,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184001322] [2021-02-24 00:18:04,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:04,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 00:18:04,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473557142] [2021-02-24 00:18:04,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 00:18:04,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:04,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 00:18:04,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:18:04,584 INFO L87 Difference]: Start difference. First operand 88 states and 104 transitions. Second operand 6 states. [2021-02-24 00:18:05,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:05,004 INFO L93 Difference]: Finished difference Result 123 states and 152 transitions. [2021-02-24 00:18:05,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 00:18:05,005 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2021-02-24 00:18:05,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:05,007 INFO L225 Difference]: With dead ends: 123 [2021-02-24 00:18:05,008 INFO L226 Difference]: Without dead ends: 121 [2021-02-24 00:18:05,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:18:05,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-02-24 00:18:05,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 107. [2021-02-24 00:18:05,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-02-24 00:18:05,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2021-02-24 00:18:05,037 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 37 [2021-02-24 00:18:05,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:05,037 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2021-02-24 00:18:05,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 00:18:05,037 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2021-02-24 00:18:05,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-24 00:18:05,039 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:05,039 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:05,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 00:18:05,040 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:05,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:05,040 INFO L82 PathProgramCache]: Analyzing trace with hash 180959284, now seen corresponding path program 1 times [2021-02-24 00:18:05,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:05,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184041251] [2021-02-24 00:18:05,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:05,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:05,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:05,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:05,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:05,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:05,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:05,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:05,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:05,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:05,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:05,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:05,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:05,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:05,164 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-24 00:18:05,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184041251] [2021-02-24 00:18:05,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:05,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 00:18:05,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945843174] [2021-02-24 00:18:05,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 00:18:05,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:05,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 00:18:05,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-24 00:18:05,167 INFO L87 Difference]: Start difference. First operand 107 states and 132 transitions. Second operand 7 states. [2021-02-24 00:18:05,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:05,671 INFO L93 Difference]: Finished difference Result 113 states and 137 transitions. [2021-02-24 00:18:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 00:18:05,672 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2021-02-24 00:18:05,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:05,675 INFO L225 Difference]: With dead ends: 113 [2021-02-24 00:18:05,675 INFO L226 Difference]: Without dead ends: 111 [2021-02-24 00:18:05,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:18:05,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-02-24 00:18:05,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-02-24 00:18:05,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2021-02-24 00:18:05,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 135 transitions. [2021-02-24 00:18:05,711 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 135 transitions. Word has length 42 [2021-02-24 00:18:05,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:05,712 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 135 transitions. [2021-02-24 00:18:05,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 00:18:05,712 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 135 transitions. [2021-02-24 00:18:05,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-02-24 00:18:05,714 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:05,714 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:05,714 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 00:18:05,715 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:05,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:05,715 INFO L82 PathProgramCache]: Analyzing trace with hash -2081674008, now seen corresponding path program 1 times [2021-02-24 00:18:05,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:05,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865587905] [2021-02-24 00:18:05,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:05,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:05,770 WARN L141 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-02-24 00:18:05,770 WARN L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-02-24 00:18:05,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:05,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:05,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:05,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:05,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:05,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:05,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:05,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:05,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:05,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-24 00:18:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:05,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:05,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:05,834 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-02-24 00:18:05,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865587905] [2021-02-24 00:18:05,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:05,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 00:18:05,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947520630] [2021-02-24 00:18:05,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 00:18:05,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:05,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 00:18:05,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:18:05,837 INFO L87 Difference]: Start difference. First operand 111 states and 135 transitions. Second operand 6 states. [2021-02-24 00:18:06,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:06,325 INFO L93 Difference]: Finished difference Result 142 states and 179 transitions. [2021-02-24 00:18:06,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 00:18:06,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2021-02-24 00:18:06,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:06,331 INFO L225 Difference]: With dead ends: 142 [2021-02-24 00:18:06,331 INFO L226 Difference]: Without dead ends: 140 [2021-02-24 00:18:06,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:18:06,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-02-24 00:18:06,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 132. [2021-02-24 00:18:06,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2021-02-24 00:18:06,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 169 transitions. [2021-02-24 00:18:06,372 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 169 transitions. Word has length 47 [2021-02-24 00:18:06,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:06,372 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 169 transitions. [2021-02-24 00:18:06,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 00:18:06,373 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 169 transitions. [2021-02-24 00:18:06,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-02-24 00:18:06,375 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:06,376 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 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] [2021-02-24 00:18:06,376 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 00:18:06,376 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:06,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:06,377 INFO L82 PathProgramCache]: Analyzing trace with hash -820038974, now seen corresponding path program 1 times [2021-02-24 00:18:06,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:06,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313589210] [2021-02-24 00:18:06,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:06,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:06,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:06,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:06,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:06,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:06,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:06,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:06,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:06,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:06,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:06,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:06,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:06,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:06,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:06,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:06,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:06,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:06,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:06,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:06,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:06,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:06,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:06,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:06,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-24 00:18:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:06,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:06,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:06,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-24 00:18:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:06,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:06,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:06,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:06,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:06,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:06,583 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-02-24 00:18:06,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313589210] [2021-02-24 00:18:06,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:06,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-24 00:18:06,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119040809] [2021-02-24 00:18:06,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:18:06,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:06,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:18:06,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:18:06,590 INFO L87 Difference]: Start difference. First operand 132 states and 169 transitions. Second operand 8 states. [2021-02-24 00:18:07,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:07,342 INFO L93 Difference]: Finished difference Result 199 states and 267 transitions. [2021-02-24 00:18:07,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 00:18:07,346 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2021-02-24 00:18:07,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:07,350 INFO L225 Difference]: With dead ends: 199 [2021-02-24 00:18:07,350 INFO L226 Difference]: Without dead ends: 197 [2021-02-24 00:18:07,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-02-24 00:18:07,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-02-24 00:18:07,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 172. [2021-02-24 00:18:07,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2021-02-24 00:18:07,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 230 transitions. [2021-02-24 00:18:07,400 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 230 transitions. Word has length 65 [2021-02-24 00:18:07,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:07,400 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 230 transitions. [2021-02-24 00:18:07,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:18:07,401 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 230 transitions. [2021-02-24 00:18:07,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-02-24 00:18:07,403 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:07,404 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:07,404 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 00:18:07,404 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:07,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:07,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1680209766, now seen corresponding path program 1 times [2021-02-24 00:18:07,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:07,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476272245] [2021-02-24 00:18:07,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:07,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:07,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:07,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 00:18:07,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:18:07,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:07,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:07,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:07,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:07,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:07,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:07,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:07,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:07,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:07,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:07,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:07,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:07,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:07,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:07,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:07,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:07,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:07,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:07,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:07,622 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-02-24 00:18:07,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476272245] [2021-02-24 00:18:07,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:07,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 00:18:07,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427138949] [2021-02-24 00:18:07,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 00:18:07,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:07,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 00:18:07,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-02-24 00:18:07,625 INFO L87 Difference]: Start difference. First operand 172 states and 230 transitions. Second operand 9 states. [2021-02-24 00:18:08,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:08,441 INFO L93 Difference]: Finished difference Result 210 states and 275 transitions. [2021-02-24 00:18:08,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 00:18:08,441 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2021-02-24 00:18:08,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:08,445 INFO L225 Difference]: With dead ends: 210 [2021-02-24 00:18:08,445 INFO L226 Difference]: Without dead ends: 208 [2021-02-24 00:18:08,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2021-02-24 00:18:08,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-02-24 00:18:08,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 189. [2021-02-24 00:18:08,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2021-02-24 00:18:08,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 248 transitions. [2021-02-24 00:18:08,491 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 248 transitions. Word has length 71 [2021-02-24 00:18:08,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:08,492 INFO L480 AbstractCegarLoop]: Abstraction has 189 states and 248 transitions. [2021-02-24 00:18:08,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 00:18:08,492 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 248 transitions. [2021-02-24 00:18:08,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-02-24 00:18:08,495 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:08,495 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 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] [2021-02-24 00:18:08,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 00:18:08,496 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:08,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:08,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1472785493, now seen corresponding path program 1 times [2021-02-24 00:18:08,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:08,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655463686] [2021-02-24 00:18:08,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:08,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:08,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:08,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:08,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:08,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:08,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:08,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:08,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:08,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:08,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:08,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:08,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:08,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:08,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-24 00:18:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:08,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:08,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-24 00:18:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:08,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:08,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:08,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:08,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-02-24 00:18:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:08,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:08,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-02-24 00:18:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:08,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:08,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:08,644 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-02-24 00:18:08,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655463686] [2021-02-24 00:18:08,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:08,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-24 00:18:08,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17588449] [2021-02-24 00:18:08,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:18:08,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:08,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:18:08,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:18:08,654 INFO L87 Difference]: Start difference. First operand 189 states and 248 transitions. Second operand 8 states. [2021-02-24 00:18:09,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:09,327 INFO L93 Difference]: Finished difference Result 232 states and 304 transitions. [2021-02-24 00:18:09,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 00:18:09,328 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2021-02-24 00:18:09,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:09,331 INFO L225 Difference]: With dead ends: 232 [2021-02-24 00:18:09,331 INFO L226 Difference]: Without dead ends: 230 [2021-02-24 00:18:09,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-02-24 00:18:09,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-02-24 00:18:09,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 216. [2021-02-24 00:18:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2021-02-24 00:18:09,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 288 transitions. [2021-02-24 00:18:09,380 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 288 transitions. Word has length 75 [2021-02-24 00:18:09,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:09,381 INFO L480 AbstractCegarLoop]: Abstraction has 216 states and 288 transitions. [2021-02-24 00:18:09,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:18:09,381 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 288 transitions. [2021-02-24 00:18:09,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-02-24 00:18:09,383 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:09,383 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:09,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 00:18:09,384 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:09,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:09,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1174213054, now seen corresponding path program 1 times [2021-02-24 00:18:09,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:09,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118149687] [2021-02-24 00:18:09,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:09,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:09,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:09,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:09,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:09,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:09,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:09,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:09,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:09,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:09,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:09,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:09,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:09,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:09,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:09,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:09,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:09,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:09,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:09,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:09,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:09,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:09,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:18:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:09,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:09,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:09,502 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-02-24 00:18:09,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118149687] [2021-02-24 00:18:09,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:09,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 00:18:09,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945968645] [2021-02-24 00:18:09,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:18:09,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:09,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:18:09,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:18:09,505 INFO L87 Difference]: Start difference. First operand 216 states and 288 transitions. Second operand 8 states. [2021-02-24 00:18:10,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:10,117 INFO L93 Difference]: Finished difference Result 230 states and 304 transitions. [2021-02-24 00:18:10,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 00:18:10,117 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2021-02-24 00:18:10,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:10,120 INFO L225 Difference]: With dead ends: 230 [2021-02-24 00:18:10,120 INFO L226 Difference]: Without dead ends: 228 [2021-02-24 00:18:10,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-02-24 00:18:10,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-02-24 00:18:10,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 221. [2021-02-24 00:18:10,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2021-02-24 00:18:10,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 293 transitions. [2021-02-24 00:18:10,166 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 293 transitions. Word has length 76 [2021-02-24 00:18:10,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:10,167 INFO L480 AbstractCegarLoop]: Abstraction has 221 states and 293 transitions. [2021-02-24 00:18:10,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:18:10,167 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 293 transitions. [2021-02-24 00:18:10,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-02-24 00:18:10,169 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:10,169 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:10,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 00:18:10,169 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:10,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:10,170 INFO L82 PathProgramCache]: Analyzing trace with hash 426535258, now seen corresponding path program 1 times [2021-02-24 00:18:10,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:10,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47747070] [2021-02-24 00:18:10,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:10,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:10,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:10,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 00:18:10,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 00:18:10,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:18:10,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:10,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:10,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:10,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:10,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:10,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:10,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:10,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:10,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:10,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:10,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:10,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:10,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:10,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:10,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:10,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:10,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:10,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:10,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:18:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:10,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:10,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:18:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:10,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:10,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:10,326 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-02-24 00:18:10,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47747070] [2021-02-24 00:18:10,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:10,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 00:18:10,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224004656] [2021-02-24 00:18:10,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 00:18:10,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:10,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 00:18:10,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:18:10,329 INFO L87 Difference]: Start difference. First operand 221 states and 293 transitions. Second operand 10 states. [2021-02-24 00:18:11,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:11,088 INFO L93 Difference]: Finished difference Result 245 states and 320 transitions. [2021-02-24 00:18:11,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 00:18:11,088 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2021-02-24 00:18:11,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:11,091 INFO L225 Difference]: With dead ends: 245 [2021-02-24 00:18:11,091 INFO L226 Difference]: Without dead ends: 243 [2021-02-24 00:18:11,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2021-02-24 00:18:11,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-02-24 00:18:11,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 234. [2021-02-24 00:18:11,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2021-02-24 00:18:11,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 308 transitions. [2021-02-24 00:18:11,138 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 308 transitions. Word has length 81 [2021-02-24 00:18:11,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:11,138 INFO L480 AbstractCegarLoop]: Abstraction has 234 states and 308 transitions. [2021-02-24 00:18:11,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 00:18:11,139 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 308 transitions. [2021-02-24 00:18:11,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-02-24 00:18:11,140 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:11,141 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:11,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 00:18:11,141 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:11,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:11,142 INFO L82 PathProgramCache]: Analyzing trace with hash 13186306, now seen corresponding path program 1 times [2021-02-24 00:18:11,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:11,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081380812] [2021-02-24 00:18:11,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:11,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:11,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:11,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:11,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:11,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:18:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:18:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:18:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,268 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-02-24 00:18:11,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081380812] [2021-02-24 00:18:11,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:11,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 00:18:11,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78660247] [2021-02-24 00:18:11,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:18:11,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:11,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:18:11,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:18:11,271 INFO L87 Difference]: Start difference. First operand 234 states and 308 transitions. Second operand 8 states. [2021-02-24 00:18:11,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:11,861 INFO L93 Difference]: Finished difference Result 249 states and 323 transitions. [2021-02-24 00:18:11,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 00:18:11,861 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2021-02-24 00:18:11,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:11,864 INFO L225 Difference]: With dead ends: 249 [2021-02-24 00:18:11,864 INFO L226 Difference]: Without dead ends: 247 [2021-02-24 00:18:11,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-02-24 00:18:11,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-02-24 00:18:11,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 239. [2021-02-24 00:18:11,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2021-02-24 00:18:11,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 313 transitions. [2021-02-24 00:18:11,909 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 313 transitions. Word has length 86 [2021-02-24 00:18:11,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:11,910 INFO L480 AbstractCegarLoop]: Abstraction has 239 states and 313 transitions. [2021-02-24 00:18:11,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:18:11,910 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 313 transitions. [2021-02-24 00:18:11,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-02-24 00:18:11,912 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:11,912 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:11,913 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-24 00:18:11,913 INFO L428 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:11,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:11,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1804218129, now seen corresponding path program 2 times [2021-02-24 00:18:11,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:11,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1586646369] [2021-02-24 00:18:11,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:11,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 00:18:11,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:18:11,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:11,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:11,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:11,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:11,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-24 00:18:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-24 00:18:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-02-24 00:18:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-02-24 00:18:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-02-24 00:18:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-02-24 00:18:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-02-24 00:18:12,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1586646369] [2021-02-24 00:18:12,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:12,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-24 00:18:12,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897919793] [2021-02-24 00:18:12,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 00:18:12,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:12,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 00:18:12,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-24 00:18:12,036 INFO L87 Difference]: Start difference. First operand 239 states and 313 transitions. Second operand 7 states. [2021-02-24 00:18:12,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:12,549 INFO L93 Difference]: Finished difference Result 415 states and 554 transitions. [2021-02-24 00:18:12,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 00:18:12,550 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2021-02-24 00:18:12,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:12,554 INFO L225 Difference]: With dead ends: 415 [2021-02-24 00:18:12,554 INFO L226 Difference]: Without dead ends: 238 [2021-02-24 00:18:12,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:18:12,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-02-24 00:18:12,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2021-02-24 00:18:12,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2021-02-24 00:18:12,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 310 transitions. [2021-02-24 00:18:12,600 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 310 transitions. Word has length 93 [2021-02-24 00:18:12,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:12,600 INFO L480 AbstractCegarLoop]: Abstraction has 238 states and 310 transitions. [2021-02-24 00:18:12,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 00:18:12,600 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 310 transitions. [2021-02-24 00:18:12,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-02-24 00:18:12,602 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:12,602 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:12,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-24 00:18:12,603 INFO L428 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:12,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:12,603 INFO L82 PathProgramCache]: Analyzing trace with hash 530288701, now seen corresponding path program 1 times [2021-02-24 00:18:12,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:12,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77720063] [2021-02-24 00:18:12,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:12,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 00:18:12,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 00:18:12,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:18:12,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:12,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:12,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:12,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:12,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:12,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:18:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:18:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:18:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:12,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:12,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-02-24 00:18:12,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77720063] [2021-02-24 00:18:12,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:12,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 00:18:12,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338935678] [2021-02-24 00:18:12,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 00:18:12,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:12,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 00:18:12,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:18:12,800 INFO L87 Difference]: Start difference. First operand 238 states and 310 transitions. Second operand 12 states. [2021-02-24 00:18:13,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:13,807 INFO L93 Difference]: Finished difference Result 260 states and 333 transitions. [2021-02-24 00:18:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 00:18:13,807 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2021-02-24 00:18:13,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:13,810 INFO L225 Difference]: With dead ends: 260 [2021-02-24 00:18:13,810 INFO L226 Difference]: Without dead ends: 258 [2021-02-24 00:18:13,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2021-02-24 00:18:13,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-02-24 00:18:13,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 249. [2021-02-24 00:18:13,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2021-02-24 00:18:13,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 321 transitions. [2021-02-24 00:18:13,857 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 321 transitions. Word has length 97 [2021-02-24 00:18:13,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:13,857 INFO L480 AbstractCegarLoop]: Abstraction has 249 states and 321 transitions. [2021-02-24 00:18:13,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 00:18:13,857 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 321 transitions. [2021-02-24 00:18:13,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-02-24 00:18:13,859 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:13,859 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:13,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-24 00:18:13,860 INFO L428 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:13,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:13,860 INFO L82 PathProgramCache]: Analyzing trace with hash -608693377, now seen corresponding path program 1 times [2021-02-24 00:18:13,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:13,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545444091] [2021-02-24 00:18:13,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:13,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:13,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:13,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:13,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:13,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:13,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:13,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:18:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:13,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:13,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:13,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:18:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:18:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-02-24 00:18:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,021 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-02-24 00:18:14,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545444091] [2021-02-24 00:18:14,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:14,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 00:18:14,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988589732] [2021-02-24 00:18:14,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 00:18:14,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:14,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 00:18:14,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:18:14,024 INFO L87 Difference]: Start difference. First operand 249 states and 321 transitions. Second operand 10 states. [2021-02-24 00:18:14,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:14,728 INFO L93 Difference]: Finished difference Result 264 states and 336 transitions. [2021-02-24 00:18:14,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 00:18:14,729 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 102 [2021-02-24 00:18:14,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:14,732 INFO L225 Difference]: With dead ends: 264 [2021-02-24 00:18:14,733 INFO L226 Difference]: Without dead ends: 262 [2021-02-24 00:18:14,734 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-02-24 00:18:14,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-02-24 00:18:14,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 254. [2021-02-24 00:18:14,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2021-02-24 00:18:14,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 326 transitions. [2021-02-24 00:18:14,783 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 326 transitions. Word has length 102 [2021-02-24 00:18:14,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:14,783 INFO L480 AbstractCegarLoop]: Abstraction has 254 states and 326 transitions. [2021-02-24 00:18:14,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 00:18:14,784 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 326 transitions. [2021-02-24 00:18:14,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-02-24 00:18:14,786 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:14,786 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 3, 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] [2021-02-24 00:18:14,786 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-24 00:18:14,786 INFO L428 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:14,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:14,787 INFO L82 PathProgramCache]: Analyzing trace with hash 56445760, now seen corresponding path program 1 times [2021-02-24 00:18:14,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:14,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530608645] [2021-02-24 00:18:14,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:14,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 00:18:14,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:14,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:14,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:14,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:14,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:14,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:14,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-24 00:18:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-02-24 00:18:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:14,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:14,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:14,950 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 22 proven. 18 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-02-24 00:18:14,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530608645] [2021-02-24 00:18:14,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:14,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-24 00:18:14,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900236999] [2021-02-24 00:18:14,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-24 00:18:14,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:14,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-24 00:18:14,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-24 00:18:14,953 INFO L87 Difference]: Start difference. First operand 254 states and 326 transitions. Second operand 11 states. [2021-02-24 00:18:15,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:15,877 INFO L93 Difference]: Finished difference Result 364 states and 486 transitions. [2021-02-24 00:18:15,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 00:18:15,878 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 106 [2021-02-24 00:18:15,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:15,882 INFO L225 Difference]: With dead ends: 364 [2021-02-24 00:18:15,882 INFO L226 Difference]: Without dead ends: 362 [2021-02-24 00:18:15,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-02-24 00:18:15,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-02-24 00:18:15,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 324. [2021-02-24 00:18:15,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2021-02-24 00:18:15,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 428 transitions. [2021-02-24 00:18:15,939 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 428 transitions. Word has length 106 [2021-02-24 00:18:15,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:15,940 INFO L480 AbstractCegarLoop]: Abstraction has 324 states and 428 transitions. [2021-02-24 00:18:15,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-24 00:18:15,940 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 428 transitions. [2021-02-24 00:18:15,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-02-24 00:18:15,942 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:15,942 INFO L422 BasicCegarLoop]: trace histogram [13, 12, 12, 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] [2021-02-24 00:18:15,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-24 00:18:15,943 INFO L428 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:15,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:15,943 INFO L82 PathProgramCache]: Analyzing trace with hash -931706216, now seen corresponding path program 1 times [2021-02-24 00:18:15,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:15,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637878180] [2021-02-24 00:18:15,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:15,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:15,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:15,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:15,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:15,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:15,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:15,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:15,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:15,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:15,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:15,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:15,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:15,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:15,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,108 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2021-02-24 00:18:16,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637878180] [2021-02-24 00:18:16,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:16,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 00:18:16,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71622436] [2021-02-24 00:18:16,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:18:16,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:16,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:18:16,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:18:16,113 INFO L87 Difference]: Start difference. First operand 324 states and 428 transitions. Second operand 8 states. [2021-02-24 00:18:16,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:16,706 INFO L93 Difference]: Finished difference Result 353 states and 465 transitions. [2021-02-24 00:18:16,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 00:18:16,707 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 112 [2021-02-24 00:18:16,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:16,710 INFO L225 Difference]: With dead ends: 353 [2021-02-24 00:18:16,710 INFO L226 Difference]: Without dead ends: 351 [2021-02-24 00:18:16,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-02-24 00:18:16,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-02-24 00:18:16,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 328. [2021-02-24 00:18:16,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2021-02-24 00:18:16,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 431 transitions. [2021-02-24 00:18:16,773 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 431 transitions. Word has length 112 [2021-02-24 00:18:16,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:16,774 INFO L480 AbstractCegarLoop]: Abstraction has 328 states and 431 transitions. [2021-02-24 00:18:16,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:18:16,774 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 431 transitions. [2021-02-24 00:18:16,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-02-24 00:18:16,777 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:16,777 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:16,777 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-24 00:18:16,777 INFO L428 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:16,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:16,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1881604269, now seen corresponding path program 2 times [2021-02-24 00:18:16,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:16,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137896459] [2021-02-24 00:18:16,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:16,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:16,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:16,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-24 00:18:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-02-24 00:18:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-24 00:18:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-24 00:18:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:16,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:16,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:16,896 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-02-24 00:18:16,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137896459] [2021-02-24 00:18:16,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:18:16,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 00:18:16,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486485506] [2021-02-24 00:18:16,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 00:18:16,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:16,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 00:18:16,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:18:16,898 INFO L87 Difference]: Start difference. First operand 328 states and 431 transitions. Second operand 6 states. [2021-02-24 00:18:17,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:17,299 INFO L93 Difference]: Finished difference Result 510 states and 665 transitions. [2021-02-24 00:18:17,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 00:18:17,300 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2021-02-24 00:18:17,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:17,304 INFO L225 Difference]: With dead ends: 510 [2021-02-24 00:18:17,304 INFO L226 Difference]: Without dead ends: 265 [2021-02-24 00:18:17,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:18:17,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-02-24 00:18:17,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2021-02-24 00:18:17,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2021-02-24 00:18:17,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 328 transitions. [2021-02-24 00:18:17,361 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 328 transitions. Word has length 116 [2021-02-24 00:18:17,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:17,361 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 328 transitions. [2021-02-24 00:18:17,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 00:18:17,361 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 328 transitions. [2021-02-24 00:18:17,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-02-24 00:18:17,363 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:17,363 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 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] [2021-02-24 00:18:17,364 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-24 00:18:17,364 INFO L428 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:17,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:17,364 INFO L82 PathProgramCache]: Analyzing trace with hash -2081080572, now seen corresponding path program 1 times [2021-02-24 00:18:17,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:17,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622714298] [2021-02-24 00:18:17,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:17,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:17,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:17,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:17,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:17,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:17,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:17,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:17,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:17,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:17,520 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-02-24 00:18:17,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622714298] [2021-02-24 00:18:17,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:17,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-24 00:18:17,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94963288] [2021-02-24 00:18:17,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 00:18:17,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:17,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 00:18:17,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:18:17,523 INFO L87 Difference]: Start difference. First operand 265 states and 328 transitions. Second operand 10 states. [2021-02-24 00:18:18,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:18,473 INFO L93 Difference]: Finished difference Result 319 states and 397 transitions. [2021-02-24 00:18:18,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 00:18:18,473 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 117 [2021-02-24 00:18:18,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:18,480 INFO L225 Difference]: With dead ends: 319 [2021-02-24 00:18:18,481 INFO L226 Difference]: Without dead ends: 317 [2021-02-24 00:18:18,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-02-24 00:18:18,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-02-24 00:18:18,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 289. [2021-02-24 00:18:18,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2021-02-24 00:18:18,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 359 transitions. [2021-02-24 00:18:18,533 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 359 transitions. Word has length 117 [2021-02-24 00:18:18,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:18,534 INFO L480 AbstractCegarLoop]: Abstraction has 289 states and 359 transitions. [2021-02-24 00:18:18,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 00:18:18,534 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 359 transitions. [2021-02-24 00:18:18,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-02-24 00:18:18,536 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:18,536 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:18,536 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-02-24 00:18:18,536 INFO L428 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:18,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:18,537 INFO L82 PathProgramCache]: Analyzing trace with hash -2071200598, now seen corresponding path program 1 times [2021-02-24 00:18:18,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:18,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643100862] [2021-02-24 00:18:18,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:18,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:18,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:18,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:18,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:18,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:18,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:18,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:18:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:18:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:18:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-02-24 00:18:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-24 00:18:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:18,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:18,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:18,731 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-02-24 00:18:18,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643100862] [2021-02-24 00:18:18,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:18,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-24 00:18:18,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848861572] [2021-02-24 00:18:18,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 00:18:18,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:18,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 00:18:18,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:18:18,735 INFO L87 Difference]: Start difference. First operand 289 states and 359 transitions. Second operand 10 states. [2021-02-24 00:18:19,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:19,630 INFO L93 Difference]: Finished difference Result 370 states and 470 transitions. [2021-02-24 00:18:19,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 00:18:19,630 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 117 [2021-02-24 00:18:19,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:19,634 INFO L225 Difference]: With dead ends: 370 [2021-02-24 00:18:19,634 INFO L226 Difference]: Without dead ends: 368 [2021-02-24 00:18:19,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-02-24 00:18:19,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-02-24 00:18:19,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 332. [2021-02-24 00:18:19,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2021-02-24 00:18:19,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 422 transitions. [2021-02-24 00:18:19,700 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 422 transitions. Word has length 117 [2021-02-24 00:18:19,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:19,700 INFO L480 AbstractCegarLoop]: Abstraction has 332 states and 422 transitions. [2021-02-24 00:18:19,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 00:18:19,700 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 422 transitions. [2021-02-24 00:18:19,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-02-24 00:18:19,703 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:19,703 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 3, 3, 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] [2021-02-24 00:18:19,703 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-02-24 00:18:19,703 INFO L428 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:19,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:19,704 INFO L82 PathProgramCache]: Analyzing trace with hash -124468011, now seen corresponding path program 1 times [2021-02-24 00:18:19,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:19,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357686102] [2021-02-24 00:18:19,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:19,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:19,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:19,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:19,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:19,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:19,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:19,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-24 00:18:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:19,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:19,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 31 proven. 20 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-02-24 00:18:19,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357686102] [2021-02-24 00:18:19,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:19,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-24 00:18:19,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142687346] [2021-02-24 00:18:19,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 00:18:19,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:19,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 00:18:19,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:18:19,896 INFO L87 Difference]: Start difference. First operand 332 states and 422 transitions. Second operand 10 states. [2021-02-24 00:18:20,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:20,865 INFO L93 Difference]: Finished difference Result 432 states and 564 transitions. [2021-02-24 00:18:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 00:18:20,866 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 119 [2021-02-24 00:18:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:20,869 INFO L225 Difference]: With dead ends: 432 [2021-02-24 00:18:20,869 INFO L226 Difference]: Without dead ends: 430 [2021-02-24 00:18:20,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-02-24 00:18:20,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-02-24 00:18:20,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 392. [2021-02-24 00:18:20,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 392 states. [2021-02-24 00:18:20,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 512 transitions. [2021-02-24 00:18:20,940 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 512 transitions. Word has length 119 [2021-02-24 00:18:20,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:20,941 INFO L480 AbstractCegarLoop]: Abstraction has 392 states and 512 transitions. [2021-02-24 00:18:20,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 00:18:20,941 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 512 transitions. [2021-02-24 00:18:20,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-02-24 00:18:20,943 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:20,943 INFO L422 BasicCegarLoop]: trace histogram [15, 14, 14, 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] [2021-02-24 00:18:20,944 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-02-24 00:18:20,944 INFO L428 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:20,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:20,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1307195944, now seen corresponding path program 1 times [2021-02-24 00:18:20,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:20,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273571544] [2021-02-24 00:18:20,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:20,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:20,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:20,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:20,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:20,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:20,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:20,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:20,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:20,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:20,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:20,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:20,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:21,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:21,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,093 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2021-02-24 00:18:21,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273571544] [2021-02-24 00:18:21,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:21,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-02-24 00:18:21,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169183116] [2021-02-24 00:18:21,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 00:18:21,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:21,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 00:18:21,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 00:18:21,095 INFO L87 Difference]: Start difference. First operand 392 states and 512 transitions. Second operand 9 states. [2021-02-24 00:18:21,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:21,715 INFO L93 Difference]: Finished difference Result 398 states and 517 transitions. [2021-02-24 00:18:21,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 00:18:21,715 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 122 [2021-02-24 00:18:21,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:21,719 INFO L225 Difference]: With dead ends: 398 [2021-02-24 00:18:21,719 INFO L226 Difference]: Without dead ends: 396 [2021-02-24 00:18:21,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2021-02-24 00:18:21,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-02-24 00:18:21,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2021-02-24 00:18:21,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2021-02-24 00:18:21,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 515 transitions. [2021-02-24 00:18:21,792 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 515 transitions. Word has length 122 [2021-02-24 00:18:21,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:21,793 INFO L480 AbstractCegarLoop]: Abstraction has 396 states and 515 transitions. [2021-02-24 00:18:21,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 00:18:21,793 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 515 transitions. [2021-02-24 00:18:21,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-02-24 00:18:21,795 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:21,796 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:21,796 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-02-24 00:18:21,796 INFO L428 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:21,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:21,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1050408772, now seen corresponding path program 1 times [2021-02-24 00:18:21,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:21,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1025993305] [2021-02-24 00:18:21,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:21,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:21,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:21,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:21,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:21,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:21,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:21,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-24 00:18:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:21,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:21,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:21,957 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-02-24 00:18:21,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1025993305] [2021-02-24 00:18:21,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:21,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-24 00:18:21,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334850473] [2021-02-24 00:18:21,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 00:18:21,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:21,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 00:18:21,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:18:21,959 INFO L87 Difference]: Start difference. First operand 396 states and 515 transitions. Second operand 10 states. [2021-02-24 00:18:22,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:22,889 INFO L93 Difference]: Finished difference Result 432 states and 554 transitions. [2021-02-24 00:18:22,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 00:18:22,890 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 127 [2021-02-24 00:18:22,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:22,893 INFO L225 Difference]: With dead ends: 432 [2021-02-24 00:18:22,894 INFO L226 Difference]: Without dead ends: 430 [2021-02-24 00:18:22,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-02-24 00:18:22,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-02-24 00:18:22,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 410. [2021-02-24 00:18:22,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2021-02-24 00:18:22,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 532 transitions. [2021-02-24 00:18:22,966 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 532 transitions. Word has length 127 [2021-02-24 00:18:22,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:22,967 INFO L480 AbstractCegarLoop]: Abstraction has 410 states and 532 transitions. [2021-02-24 00:18:22,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 00:18:22,967 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 532 transitions. [2021-02-24 00:18:22,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-02-24 00:18:22,969 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:22,969 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:22,969 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-02-24 00:18:22,970 INFO L428 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:22,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:22,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1244629955, now seen corresponding path program 1 times [2021-02-24 00:18:22,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:22,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [578747519] [2021-02-24 00:18:22,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:23,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:23,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:23,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:23,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:23,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:23,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:23,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:23,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:23,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:18:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:18:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:18:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-02-24 00:18:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-24 00:18:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-24 00:18:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:23,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:23,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:23,151 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-02-24 00:18:23,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [578747519] [2021-02-24 00:18:23,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:23,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-02-24 00:18:23,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675454988] [2021-02-24 00:18:23,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 00:18:23,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:23,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 00:18:23,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:18:23,153 INFO L87 Difference]: Start difference. First operand 410 states and 532 transitions. Second operand 12 states. [2021-02-24 00:18:24,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:24,160 INFO L93 Difference]: Finished difference Result 455 states and 592 transitions. [2021-02-24 00:18:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-24 00:18:24,161 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 127 [2021-02-24 00:18:24,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:24,165 INFO L225 Difference]: With dead ends: 455 [2021-02-24 00:18:24,165 INFO L226 Difference]: Without dead ends: 449 [2021-02-24 00:18:24,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2021-02-24 00:18:24,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2021-02-24 00:18:24,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 433. [2021-02-24 00:18:24,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2021-02-24 00:18:24,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 565 transitions. [2021-02-24 00:18:24,242 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 565 transitions. Word has length 127 [2021-02-24 00:18:24,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:24,243 INFO L480 AbstractCegarLoop]: Abstraction has 433 states and 565 transitions. [2021-02-24 00:18:24,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 00:18:24,243 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 565 transitions. [2021-02-24 00:18:24,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-02-24 00:18:24,246 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:24,246 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:24,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-02-24 00:18:24,246 INFO L428 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:24,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:24,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1844003496, now seen corresponding path program 3 times [2021-02-24 00:18:24,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:24,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361453979] [2021-02-24 00:18:24,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:24,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:24,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:24,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:24,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:24,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:24,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:24,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-24 00:18:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 00:18:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-02-24 00:18:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:24,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:24,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 40 proven. 19 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-02-24 00:18:24,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361453979] [2021-02-24 00:18:24,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:24,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-24 00:18:24,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175134336] [2021-02-24 00:18:24,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 00:18:24,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:24,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 00:18:24,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:18:24,395 INFO L87 Difference]: Start difference. First operand 433 states and 565 transitions. Second operand 10 states. [2021-02-24 00:18:25,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:25,382 INFO L93 Difference]: Finished difference Result 487 states and 634 transitions. [2021-02-24 00:18:25,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 00:18:25,382 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 129 [2021-02-24 00:18:25,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:25,391 INFO L225 Difference]: With dead ends: 487 [2021-02-24 00:18:25,391 INFO L226 Difference]: Without dead ends: 481 [2021-02-24 00:18:25,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-02-24 00:18:25,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-02-24 00:18:25,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 459. [2021-02-24 00:18:25,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2021-02-24 00:18:25,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 601 transitions. [2021-02-24 00:18:25,480 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 601 transitions. Word has length 129 [2021-02-24 00:18:25,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:25,482 INFO L480 AbstractCegarLoop]: Abstraction has 459 states and 601 transitions. [2021-02-24 00:18:25,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 00:18:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 601 transitions. [2021-02-24 00:18:25,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-02-24 00:18:25,485 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:25,486 INFO L422 BasicCegarLoop]: trace histogram [17, 16, 16, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:25,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-02-24 00:18:25,486 INFO L428 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:25,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:25,487 INFO L82 PathProgramCache]: Analyzing trace with hash 94908603, now seen corresponding path program 1 times [2021-02-24 00:18:25,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:25,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522776474] [2021-02-24 00:18:25,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:25,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:25,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:25,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:25,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:25,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:18:25,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:25,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:25,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-24 00:18:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-24 00:18:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:25,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:25,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:25,695 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2021-02-24 00:18:25,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522776474] [2021-02-24 00:18:25,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:25,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-24 00:18:25,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68102951] [2021-02-24 00:18:25,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-24 00:18:25,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:25,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-24 00:18:25,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-24 00:18:25,698 INFO L87 Difference]: Start difference. First operand 459 states and 601 transitions. Second operand 11 states. [2021-02-24 00:18:26,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:26,409 INFO L93 Difference]: Finished difference Result 465 states and 606 transitions. [2021-02-24 00:18:26,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 00:18:26,410 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 138 [2021-02-24 00:18:26,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:26,415 INFO L225 Difference]: With dead ends: 465 [2021-02-24 00:18:26,415 INFO L226 Difference]: Without dead ends: 463 [2021-02-24 00:18:26,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2021-02-24 00:18:26,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2021-02-24 00:18:26,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2021-02-24 00:18:26,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2021-02-24 00:18:26,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 604 transitions. [2021-02-24 00:18:26,513 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 604 transitions. Word has length 138 [2021-02-24 00:18:26,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:26,514 INFO L480 AbstractCegarLoop]: Abstraction has 463 states and 604 transitions. [2021-02-24 00:18:26,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-24 00:18:26,514 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 604 transitions. [2021-02-24 00:18:26,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-02-24 00:18:26,518 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:26,518 INFO L422 BasicCegarLoop]: trace histogram [18, 17, 17, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:26,518 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-02-24 00:18:26,518 INFO L428 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:26,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:26,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1148055103, now seen corresponding path program 1 times [2021-02-24 00:18:26,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:26,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201906675] [2021-02-24 00:18:26,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:26,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:26,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:26,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:26,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:26,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:26,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:26,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:26,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:26,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-24 00:18:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-24 00:18:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-24 00:18:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:26,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:26,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:26,723 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-02-24 00:18:26,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201906675] [2021-02-24 00:18:26,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:26,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-02-24 00:18:26,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330137589] [2021-02-24 00:18:26,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 00:18:26,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:26,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 00:18:26,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:18:26,727 INFO L87 Difference]: Start difference. First operand 463 states and 604 transitions. Second operand 12 states. [2021-02-24 00:18:27,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:27,811 INFO L93 Difference]: Finished difference Result 497 states and 639 transitions. [2021-02-24 00:18:27,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-24 00:18:27,811 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 143 [2021-02-24 00:18:27,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:27,816 INFO L225 Difference]: With dead ends: 497 [2021-02-24 00:18:27,816 INFO L226 Difference]: Without dead ends: 495 [2021-02-24 00:18:27,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2021-02-24 00:18:27,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-02-24 00:18:27,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 475. [2021-02-24 00:18:27,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2021-02-24 00:18:27,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 617 transitions. [2021-02-24 00:18:27,907 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 617 transitions. Word has length 143 [2021-02-24 00:18:27,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:27,908 INFO L480 AbstractCegarLoop]: Abstraction has 475 states and 617 transitions. [2021-02-24 00:18:27,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 00:18:27,908 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 617 transitions. [2021-02-24 00:18:27,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-02-24 00:18:27,911 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:27,911 INFO L422 BasicCegarLoop]: trace histogram [20, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:27,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-02-24 00:18:27,911 INFO L428 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:27,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:27,912 INFO L82 PathProgramCache]: Analyzing trace with hash 529335053, now seen corresponding path program 2 times [2021-02-24 00:18:27,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:27,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977447054] [2021-02-24 00:18:27,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:27,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:27,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:27,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:27,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:27,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:27,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:27,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:27,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:27,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:27,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:27,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:27,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:27,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:27,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:27,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:27,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:28,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:28,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:28,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:18:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:18:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:18:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-02-24 00:18:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-24 00:18:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-24 00:18:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 00:18:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-24 00:18:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 00:18:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-24 00:18:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:28,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:28,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:28,178 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 41 proven. 16 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-02-24 00:18:28,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977447054] [2021-02-24 00:18:28,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:28,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-02-24 00:18:28,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971245997] [2021-02-24 00:18:28,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 00:18:28,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:28,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 00:18:28,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:18:28,181 INFO L87 Difference]: Start difference. First operand 475 states and 617 transitions. Second operand 12 states. [2021-02-24 00:18:29,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:29,377 INFO L93 Difference]: Finished difference Result 591 states and 783 transitions. [2021-02-24 00:18:29,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-24 00:18:29,378 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 156 [2021-02-24 00:18:29,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:29,383 INFO L225 Difference]: With dead ends: 591 [2021-02-24 00:18:29,384 INFO L226 Difference]: Without dead ends: 589 [2021-02-24 00:18:29,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2021-02-24 00:18:29,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2021-02-24 00:18:29,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 565. [2021-02-24 00:18:29,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2021-02-24 00:18:29,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 749 transitions. [2021-02-24 00:18:29,505 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 749 transitions. Word has length 156 [2021-02-24 00:18:29,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:29,506 INFO L480 AbstractCegarLoop]: Abstraction has 565 states and 749 transitions. [2021-02-24 00:18:29,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 00:18:29,506 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 749 transitions. [2021-02-24 00:18:29,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-24 00:18:29,509 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:29,510 INFO L422 BasicCegarLoop]: trace histogram [20, 19, 19, 3, 3, 3, 3, 3, 3, 3, 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] [2021-02-24 00:18:29,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-02-24 00:18:29,510 INFO L428 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:29,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:29,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1195724670, now seen corresponding path program 2 times [2021-02-24 00:18:29,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:29,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [739503305] [2021-02-24 00:18:29,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:29,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:29,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:29,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:29,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:29,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:29,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:29,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:29,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:29,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-24 00:18:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 00:18:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-24 00:18:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-02-24 00:18:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 00:18:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 00:18:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:18:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:29,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:29,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:29,718 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 45 proven. 22 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-02-24 00:18:29,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [739503305] [2021-02-24 00:18:29,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:29,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-02-24 00:18:29,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006038280] [2021-02-24 00:18:29,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 00:18:29,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:29,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 00:18:29,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:18:29,720 INFO L87 Difference]: Start difference. First operand 565 states and 749 transitions. Second operand 12 states. [2021-02-24 00:18:31,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:31,003 INFO L93 Difference]: Finished difference Result 636 states and 841 transitions. [2021-02-24 00:18:31,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-24 00:18:31,003 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 158 [2021-02-24 00:18:31,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:31,010 INFO L225 Difference]: With dead ends: 636 [2021-02-24 00:18:31,010 INFO L226 Difference]: Without dead ends: 634 [2021-02-24 00:18:31,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2021-02-24 00:18:31,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2021-02-24 00:18:31,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 599. [2021-02-24 00:18:31,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2021-02-24 00:18:31,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 794 transitions. [2021-02-24 00:18:31,127 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 794 transitions. Word has length 158 [2021-02-24 00:18:31,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:31,128 INFO L480 AbstractCegarLoop]: Abstraction has 599 states and 794 transitions. [2021-02-24 00:18:31,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 00:18:31,128 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 794 transitions. [2021-02-24 00:18:31,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-24 00:18:31,131 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:31,131 INFO L422 BasicCegarLoop]: trace histogram [20, 19, 19, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:31,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-02-24 00:18:31,131 INFO L428 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:31,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:31,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1185844696, now seen corresponding path program 1 times [2021-02-24 00:18:31,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:31,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681854363] [2021-02-24 00:18:31,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:31,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:31,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:31,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:31,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:31,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:31,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:31,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:31,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:31,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-24 00:18:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-24 00:18:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-24 00:18:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-24 00:18:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:18:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:31,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:31,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:31,347 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 42 proven. 10 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-02-24 00:18:31,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681854363] [2021-02-24 00:18:31,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:31,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-02-24 00:18:31,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331800494] [2021-02-24 00:18:31,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 00:18:31,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:31,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 00:18:31,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:18:31,350 INFO L87 Difference]: Start difference. First operand 599 states and 794 transitions. Second operand 12 states. [2021-02-24 00:18:32,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:32,782 INFO L93 Difference]: Finished difference Result 739 states and 992 transitions. [2021-02-24 00:18:32,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-24 00:18:32,783 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 158 [2021-02-24 00:18:32,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:32,790 INFO L225 Difference]: With dead ends: 739 [2021-02-24 00:18:32,790 INFO L226 Difference]: Without dead ends: 737 [2021-02-24 00:18:32,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2021-02-24 00:18:32,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-02-24 00:18:32,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 609. [2021-02-24 00:18:32,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2021-02-24 00:18:32,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 808 transitions. [2021-02-24 00:18:32,912 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 808 transitions. Word has length 158 [2021-02-24 00:18:32,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:32,912 INFO L480 AbstractCegarLoop]: Abstraction has 609 states and 808 transitions. [2021-02-24 00:18:32,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 00:18:32,913 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 808 transitions. [2021-02-24 00:18:32,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-24 00:18:32,915 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:32,916 INFO L422 BasicCegarLoop]: trace histogram [20, 19, 19, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:32,916 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-02-24 00:18:32,916 INFO L428 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:32,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:32,916 INFO L82 PathProgramCache]: Analyzing trace with hash 224046750, now seen corresponding path program 2 times [2021-02-24 00:18:32,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:32,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794567040] [2021-02-24 00:18:32,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:32,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:32,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:32,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:32,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:32,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:32,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:32,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:32,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:32,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:32,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:32,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:32,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:32,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:32,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:32,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:32,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:32,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:32,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:32,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:32,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:33,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:18:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:18:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:18:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-02-24 00:18:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-24 00:18:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-24 00:18:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 00:18:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-24 00:18:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 00:18:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:18:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:33,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:33,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:33,125 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 42 proven. 10 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-02-24 00:18:33,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794567040] [2021-02-24 00:18:33,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:33,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-02-24 00:18:33,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018183246] [2021-02-24 00:18:33,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 00:18:33,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:33,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 00:18:33,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:18:33,128 INFO L87 Difference]: Start difference. First operand 609 states and 808 transitions. Second operand 12 states. [2021-02-24 00:18:34,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:34,455 INFO L93 Difference]: Finished difference Result 750 states and 1007 transitions. [2021-02-24 00:18:34,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-24 00:18:34,455 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 158 [2021-02-24 00:18:34,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:34,462 INFO L225 Difference]: With dead ends: 750 [2021-02-24 00:18:34,462 INFO L226 Difference]: Without dead ends: 748 [2021-02-24 00:18:34,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2021-02-24 00:18:34,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2021-02-24 00:18:34,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 691. [2021-02-24 00:18:34,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2021-02-24 00:18:34,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 932 transitions. [2021-02-24 00:18:34,613 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 932 transitions. Word has length 158 [2021-02-24 00:18:34,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:34,614 INFO L480 AbstractCegarLoop]: Abstraction has 691 states and 932 transitions. [2021-02-24 00:18:34,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 00:18:34,614 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 932 transitions. [2021-02-24 00:18:34,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-02-24 00:18:34,618 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:34,618 INFO L422 BasicCegarLoop]: trace histogram [22, 21, 21, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:34,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-02-24 00:18:34,618 INFO L428 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:34,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:34,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1898186765, now seen corresponding path program 3 times [2021-02-24 00:18:34,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:34,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499589092] [2021-02-24 00:18:34,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:34,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:34,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:34,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:34,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:34,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:34,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:34,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:34,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:34,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:34,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:34,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:18:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:18:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:18:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-02-24 00:18:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-24 00:18:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-24 00:18:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 00:18:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-24 00:18:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 00:18:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-24 00:18:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-02-24 00:18:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-24 00:18:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:34,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:34,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:34,885 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 50 proven. 13 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-02-24 00:18:34,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499589092] [2021-02-24 00:18:34,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:34,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-02-24 00:18:34,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636095171] [2021-02-24 00:18:34,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 00:18:34,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:34,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 00:18:34,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-02-24 00:18:34,887 INFO L87 Difference]: Start difference. First operand 691 states and 932 transitions. Second operand 14 states. [2021-02-24 00:18:36,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:36,276 INFO L93 Difference]: Finished difference Result 795 states and 1074 transitions. [2021-02-24 00:18:36,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-24 00:18:36,276 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2021-02-24 00:18:36,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:36,284 INFO L225 Difference]: With dead ends: 795 [2021-02-24 00:18:36,284 INFO L226 Difference]: Without dead ends: 789 [2021-02-24 00:18:36,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2021-02-24 00:18:36,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2021-02-24 00:18:36,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 767. [2021-02-24 00:18:36,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2021-02-24 00:18:36,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1041 transitions. [2021-02-24 00:18:36,447 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1041 transitions. Word has length 166 [2021-02-24 00:18:36,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:36,448 INFO L480 AbstractCegarLoop]: Abstraction has 767 states and 1041 transitions. [2021-02-24 00:18:36,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 00:18:36,448 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1041 transitions. [2021-02-24 00:18:36,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-24 00:18:36,451 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:36,452 INFO L422 BasicCegarLoop]: trace histogram [22, 21, 21, 3, 3, 3, 3, 3, 3, 3, 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] [2021-02-24 00:18:36,452 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-02-24 00:18:36,452 INFO L428 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:36,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:36,452 INFO L82 PathProgramCache]: Analyzing trace with hash -815585470, now seen corresponding path program 2 times [2021-02-24 00:18:36,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:36,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336164857] [2021-02-24 00:18:36,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:36,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:36,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:36,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:36,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:36,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:36,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:36,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:36,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:36,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-24 00:18:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 00:18:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-24 00:18:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-02-24 00:18:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 00:18:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 00:18:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:18:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 00:18:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-24 00:18:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:36,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:36,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:36,641 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 52 proven. 19 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-02-24 00:18:36,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336164857] [2021-02-24 00:18:36,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:36,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-02-24 00:18:36,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574096518] [2021-02-24 00:18:36,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 00:18:36,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:36,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 00:18:36,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:18:36,644 INFO L87 Difference]: Start difference. First operand 767 states and 1041 transitions. Second operand 12 states. [2021-02-24 00:18:37,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:37,924 INFO L93 Difference]: Finished difference Result 815 states and 1092 transitions. [2021-02-24 00:18:37,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-24 00:18:37,925 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 168 [2021-02-24 00:18:37,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:37,931 INFO L225 Difference]: With dead ends: 815 [2021-02-24 00:18:37,932 INFO L226 Difference]: Without dead ends: 813 [2021-02-24 00:18:37,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2021-02-24 00:18:37,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2021-02-24 00:18:38,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 781. [2021-02-24 00:18:38,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 781 states. [2021-02-24 00:18:38,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1058 transitions. [2021-02-24 00:18:38,106 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1058 transitions. Word has length 168 [2021-02-24 00:18:38,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:38,107 INFO L480 AbstractCegarLoop]: Abstraction has 781 states and 1058 transitions. [2021-02-24 00:18:38,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 00:18:38,107 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1058 transitions. [2021-02-24 00:18:38,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-24 00:18:38,110 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:38,111 INFO L422 BasicCegarLoop]: trace histogram [22, 21, 21, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:38,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-02-24 00:18:38,111 INFO L428 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:38,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:38,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1184343099, now seen corresponding path program 1 times [2021-02-24 00:18:38,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:38,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258117476] [2021-02-24 00:18:38,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:38,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:38,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:38,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:38,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:38,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:38,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:38,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:38,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:38,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:38,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:38,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-24 00:18:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-24 00:18:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-24 00:18:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-24 00:18:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:18:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 00:18:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-24 00:18:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:38,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:38,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 44 proven. 12 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-02-24 00:18:38,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258117476] [2021-02-24 00:18:38,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:38,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-02-24 00:18:38,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043166451] [2021-02-24 00:18:38,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 00:18:38,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:38,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 00:18:38,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-02-24 00:18:38,341 INFO L87 Difference]: Start difference. First operand 781 states and 1058 transitions. Second operand 14 states. [2021-02-24 00:18:39,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:39,971 INFO L93 Difference]: Finished difference Result 860 states and 1158 transitions. [2021-02-24 00:18:39,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-24 00:18:39,971 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 168 [2021-02-24 00:18:39,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:39,978 INFO L225 Difference]: With dead ends: 860 [2021-02-24 00:18:39,978 INFO L226 Difference]: Without dead ends: 854 [2021-02-24 00:18:39,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2021-02-24 00:18:39,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2021-02-24 00:18:40,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 746. [2021-02-24 00:18:40,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2021-02-24 00:18:40,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1006 transitions. [2021-02-24 00:18:40,136 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1006 transitions. Word has length 168 [2021-02-24 00:18:40,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:40,137 INFO L480 AbstractCegarLoop]: Abstraction has 746 states and 1006 transitions. [2021-02-24 00:18:40,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 00:18:40,137 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1006 transitions. [2021-02-24 00:18:40,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-24 00:18:40,140 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:40,140 INFO L422 BasicCegarLoop]: trace histogram [22, 21, 21, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:40,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-02-24 00:18:40,141 INFO L428 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:40,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:40,141 INFO L82 PathProgramCache]: Analyzing trace with hash 514868529, now seen corresponding path program 2 times [2021-02-24 00:18:40,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:40,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522507381] [2021-02-24 00:18:40,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:40,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:40,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:40,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:40,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:40,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:40,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:40,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:40,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:40,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:40,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:40,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:18:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:18:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:18:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-02-24 00:18:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-24 00:18:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-24 00:18:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 00:18:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-24 00:18:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 00:18:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:18:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 00:18:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-24 00:18:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:40,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:40,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:40,367 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 48 proven. 8 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-02-24 00:18:40,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522507381] [2021-02-24 00:18:40,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:40,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-02-24 00:18:40,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555330908] [2021-02-24 00:18:40,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 00:18:40,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:40,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 00:18:40,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-02-24 00:18:40,369 INFO L87 Difference]: Start difference. First operand 746 states and 1006 transitions. Second operand 14 states. [2021-02-24 00:18:41,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:41,895 INFO L93 Difference]: Finished difference Result 810 states and 1085 transitions. [2021-02-24 00:18:41,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-24 00:18:41,896 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 168 [2021-02-24 00:18:41,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:41,901 INFO L225 Difference]: With dead ends: 810 [2021-02-24 00:18:41,901 INFO L226 Difference]: Without dead ends: 804 [2021-02-24 00:18:41,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=723, Unknown=0, NotChecked=0, Total=870 [2021-02-24 00:18:41,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2021-02-24 00:18:42,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 772. [2021-02-24 00:18:42,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2021-02-24 00:18:42,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1042 transitions. [2021-02-24 00:18:42,069 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1042 transitions. Word has length 168 [2021-02-24 00:18:42,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:42,069 INFO L480 AbstractCegarLoop]: Abstraction has 772 states and 1042 transitions. [2021-02-24 00:18:42,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 00:18:42,069 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1042 transitions. [2021-02-24 00:18:42,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-02-24 00:18:42,073 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:42,073 INFO L422 BasicCegarLoop]: trace histogram [24, 23, 23, 3, 3, 3, 3, 3, 3, 3, 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] [2021-02-24 00:18:42,074 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-02-24 00:18:42,074 INFO L428 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:42,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:42,074 INFO L82 PathProgramCache]: Analyzing trace with hash 379946431, now seen corresponding path program 2 times [2021-02-24 00:18:42,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:42,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455444736] [2021-02-24 00:18:42,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:42,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:42,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:42,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:42,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:42,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:42,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:42,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:42,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:42,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:42,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:42,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-24 00:18:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 00:18:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-24 00:18:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-02-24 00:18:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 00:18:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 00:18:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:18:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 00:18:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-24 00:18:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-02-24 00:18:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-02-24 00:18:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:42,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:42,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1087 backedges. 56 proven. 19 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-02-24 00:18:42,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455444736] [2021-02-24 00:18:42,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:42,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-02-24 00:18:42,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672373657] [2021-02-24 00:18:42,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 00:18:42,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:42,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 00:18:42,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-02-24 00:18:42,332 INFO L87 Difference]: Start difference. First operand 772 states and 1042 transitions. Second operand 14 states. [2021-02-24 00:18:43,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:43,917 INFO L93 Difference]: Finished difference Result 818 states and 1089 transitions. [2021-02-24 00:18:43,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-24 00:18:43,918 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 184 [2021-02-24 00:18:43,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:43,924 INFO L225 Difference]: With dead ends: 818 [2021-02-24 00:18:43,925 INFO L226 Difference]: Without dead ends: 816 [2021-02-24 00:18:43,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=723, Unknown=0, NotChecked=0, Total=870 [2021-02-24 00:18:43,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2021-02-24 00:18:44,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 784. [2021-02-24 00:18:44,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2021-02-24 00:18:44,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1055 transitions. [2021-02-24 00:18:44,097 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1055 transitions. Word has length 184 [2021-02-24 00:18:44,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:44,097 INFO L480 AbstractCegarLoop]: Abstraction has 784 states and 1055 transitions. [2021-02-24 00:18:44,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 00:18:44,098 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1055 transitions. [2021-02-24 00:18:44,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-02-24 00:18:44,102 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:44,102 INFO L422 BasicCegarLoop]: trace histogram [26, 25, 25, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:44,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-02-24 00:18:44,103 INFO L428 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:44,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:44,103 INFO L82 PathProgramCache]: Analyzing trace with hash 655541913, now seen corresponding path program 3 times [2021-02-24 00:18:44,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:44,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931900917] [2021-02-24 00:18:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:44,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:44,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:44,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:44,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:44,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:44,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:44,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:44,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:44,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:44,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:44,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:18:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:18:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:18:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-02-24 00:18:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-24 00:18:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-24 00:18:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 00:18:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-24 00:18:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 00:18:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:18:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 00:18:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-24 00:18:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-02-24 00:18:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:18:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-24 00:18:44,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-24 00:18:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:44,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:44,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:44,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 59 proven. 22 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-02-24 00:18:44,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931900917] [2021-02-24 00:18:44,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:44,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-02-24 00:18:44,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733496454] [2021-02-24 00:18:44,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 00:18:44,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:44,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 00:18:44,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-02-24 00:18:44,354 INFO L87 Difference]: Start difference. First operand 784 states and 1055 transitions. Second operand 14 states. [2021-02-24 00:18:46,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:46,085 INFO L93 Difference]: Finished difference Result 1111 states and 1526 transitions. [2021-02-24 00:18:46,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-24 00:18:46,085 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 197 [2021-02-24 00:18:46,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:46,093 INFO L225 Difference]: With dead ends: 1111 [2021-02-24 00:18:46,093 INFO L226 Difference]: Without dead ends: 1109 [2021-02-24 00:18:46,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2021-02-24 00:18:46,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-02-24 00:18:46,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1023. [2021-02-24 00:18:46,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2021-02-24 00:18:46,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1411 transitions. [2021-02-24 00:18:46,311 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1411 transitions. Word has length 197 [2021-02-24 00:18:46,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:46,312 INFO L480 AbstractCegarLoop]: Abstraction has 1023 states and 1411 transitions. [2021-02-24 00:18:46,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 00:18:46,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1411 transitions. [2021-02-24 00:18:46,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-24 00:18:46,316 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:46,316 INFO L422 BasicCegarLoop]: trace histogram [26, 25, 25, 4, 4, 4, 4, 4, 3, 3, 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] [2021-02-24 00:18:46,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-02-24 00:18:46,316 INFO L428 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:46,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:46,317 INFO L82 PathProgramCache]: Analyzing trace with hash -884751766, now seen corresponding path program 4 times [2021-02-24 00:18:46,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:46,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392957928] [2021-02-24 00:18:46,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:46,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:46,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:46,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:46,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:46,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:46,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:46,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:46,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:46,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:46,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:46,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-24 00:18:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 00:18:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-24 00:18:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-02-24 00:18:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 00:18:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 00:18:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:18:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 00:18:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-24 00:18:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-02-24 00:18:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-02-24 00:18:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-02-24 00:18:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-02-24 00:18:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:46,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:46,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1291 backedges. 65 proven. 26 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-02-24 00:18:46,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392957928] [2021-02-24 00:18:46,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:46,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-02-24 00:18:46,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033514969] [2021-02-24 00:18:46,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 00:18:46,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:46,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 00:18:46,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-02-24 00:18:46,607 INFO L87 Difference]: Start difference. First operand 1023 states and 1411 transitions. Second operand 14 states. [2021-02-24 00:18:48,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:48,479 INFO L93 Difference]: Finished difference Result 1351 states and 1887 transitions. [2021-02-24 00:18:48,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-24 00:18:48,480 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 199 [2021-02-24 00:18:48,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:48,491 INFO L225 Difference]: With dead ends: 1351 [2021-02-24 00:18:48,491 INFO L226 Difference]: Without dead ends: 1349 [2021-02-24 00:18:48,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=817, Unknown=0, NotChecked=0, Total=992 [2021-02-24 00:18:48,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2021-02-24 00:18:48,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1264. [2021-02-24 00:18:48,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1264 states. [2021-02-24 00:18:48,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1766 transitions. [2021-02-24 00:18:48,749 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1766 transitions. Word has length 199 [2021-02-24 00:18:48,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:48,750 INFO L480 AbstractCegarLoop]: Abstraction has 1264 states and 1766 transitions. [2021-02-24 00:18:48,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 00:18:48,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1766 transitions. [2021-02-24 00:18:48,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-24 00:18:48,754 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:48,754 INFO L422 BasicCegarLoop]: trace histogram [26, 25, 25, 4, 4, 4, 4, 4, 3, 3, 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] [2021-02-24 00:18:48,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-02-24 00:18:48,755 INFO L428 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:48,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:48,755 INFO L82 PathProgramCache]: Analyzing trace with hash 525139680, now seen corresponding path program 5 times [2021-02-24 00:18:48,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:48,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [325141740] [2021-02-24 00:18:48,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:48,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:48,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:48,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:48,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:48,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:48,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:48,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:48,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:48,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:48,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:48,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-24 00:18:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-24 00:18:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-24 00:18:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-24 00:18:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:18:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 00:18:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-24 00:18:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-02-24 00:18:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:18:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-24 00:18:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:48,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-02-24 00:18:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:48,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:48,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:49,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1291 backedges. 65 proven. 26 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-02-24 00:18:49,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [325141740] [2021-02-24 00:18:49,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:49,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-02-24 00:18:49,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059209100] [2021-02-24 00:18:49,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 00:18:49,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:49,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 00:18:49,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-02-24 00:18:49,006 INFO L87 Difference]: Start difference. First operand 1264 states and 1766 transitions. Second operand 14 states. [2021-02-24 00:18:50,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:50,906 INFO L93 Difference]: Finished difference Result 1682 states and 2373 transitions. [2021-02-24 00:18:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-24 00:18:50,907 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 199 [2021-02-24 00:18:50,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:50,923 INFO L225 Difference]: With dead ends: 1682 [2021-02-24 00:18:50,923 INFO L226 Difference]: Without dead ends: 1680 [2021-02-24 00:18:50,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2021-02-24 00:18:50,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2021-02-24 00:18:51,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1354. [2021-02-24 00:18:51,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1354 states. [2021-02-24 00:18:51,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1897 transitions. [2021-02-24 00:18:51,279 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1897 transitions. Word has length 199 [2021-02-24 00:18:51,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:51,279 INFO L480 AbstractCegarLoop]: Abstraction has 1354 states and 1897 transitions. [2021-02-24 00:18:51,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 00:18:51,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1897 transitions. [2021-02-24 00:18:51,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-02-24 00:18:51,284 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:51,284 INFO L422 BasicCegarLoop]: trace histogram [28, 27, 27, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:51,285 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-02-24 00:18:51,285 INFO L428 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:51,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:51,285 INFO L82 PathProgramCache]: Analyzing trace with hash 933481625, now seen corresponding path program 6 times [2021-02-24 00:18:51,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:51,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116272922] [2021-02-24 00:18:51,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:51,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:51,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:51,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:51,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:51,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:51,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:51,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:51,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:51,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:51,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:51,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:51,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:51,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:18:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:18:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:18:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-02-24 00:18:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-24 00:18:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-24 00:18:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 00:18:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-24 00:18:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 00:18:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:18:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 00:18:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-24 00:18:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-02-24 00:18:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:18:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-24 00:18:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-24 00:18:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-02-24 00:18:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-02-24 00:18:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:51,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:51,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:51,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1491 backedges. 68 proven. 19 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-02-24 00:18:51,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116272922] [2021-02-24 00:18:51,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:51,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-02-24 00:18:51,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680398400] [2021-02-24 00:18:51,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-24 00:18:51,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:51,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-24 00:18:51,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-02-24 00:18:51,574 INFO L87 Difference]: Start difference. First operand 1354 states and 1897 transitions. Second operand 16 states. [2021-02-24 00:18:53,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:53,549 INFO L93 Difference]: Finished difference Result 1609 states and 2251 transitions. [2021-02-24 00:18:53,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-24 00:18:53,549 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 207 [2021-02-24 00:18:53,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:53,561 INFO L225 Difference]: With dead ends: 1609 [2021-02-24 00:18:53,562 INFO L226 Difference]: Without dead ends: 1599 [2021-02-24 00:18:53,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=210, Invalid=1050, Unknown=0, NotChecked=0, Total=1260 [2021-02-24 00:18:53,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2021-02-24 00:18:53,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1518. [2021-02-24 00:18:53,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2021-02-24 00:18:53,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2136 transitions. [2021-02-24 00:18:53,855 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2136 transitions. Word has length 207 [2021-02-24 00:18:53,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:53,856 INFO L480 AbstractCegarLoop]: Abstraction has 1518 states and 2136 transitions. [2021-02-24 00:18:53,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-24 00:18:53,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2136 transitions. [2021-02-24 00:18:53,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-02-24 00:18:53,860 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:53,861 INFO L422 BasicCegarLoop]: trace histogram [28, 27, 27, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:53,861 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-02-24 00:18:53,861 INFO L428 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:53,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:53,862 INFO L82 PathProgramCache]: Analyzing trace with hash -321123843, now seen corresponding path program 3 times [2021-02-24 00:18:53,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:53,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715320989] [2021-02-24 00:18:53,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:53,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:53,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:53,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:53,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:53,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:53,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:53,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:53,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:53,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:53,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:53,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:53,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:53,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:53,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:53,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:53,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-24 00:18:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 00:18:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-24 00:18:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-02-24 00:18:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 00:18:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-24 00:18:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:18:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 00:18:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-24 00:18:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-02-24 00:18:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-02-24 00:18:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-02-24 00:18:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-02-24 00:18:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-02-24 00:18:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-02-24 00:18:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:54,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:54,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:54,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 72 proven. 25 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-02-24 00:18:54,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715320989] [2021-02-24 00:18:54,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:54,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-02-24 00:18:54,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009291343] [2021-02-24 00:18:54,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-24 00:18:54,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:54,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-24 00:18:54,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-02-24 00:18:54,119 INFO L87 Difference]: Start difference. First operand 1518 states and 2136 transitions. Second operand 16 states. [2021-02-24 00:18:56,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:56,434 INFO L93 Difference]: Finished difference Result 1773 states and 2490 transitions. [2021-02-24 00:18:56,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-02-24 00:18:56,435 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 209 [2021-02-24 00:18:56,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:56,448 INFO L225 Difference]: With dead ends: 1773 [2021-02-24 00:18:56,448 INFO L226 Difference]: Without dead ends: 1763 [2021-02-24 00:18:56,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=226, Invalid=1106, Unknown=0, NotChecked=0, Total=1332 [2021-02-24 00:18:56,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2021-02-24 00:18:56,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1660. [2021-02-24 00:18:56,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1660 states. [2021-02-24 00:18:56,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2337 transitions. [2021-02-24 00:18:56,729 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2337 transitions. Word has length 209 [2021-02-24 00:18:56,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:56,730 INFO L480 AbstractCegarLoop]: Abstraction has 1660 states and 2337 transitions. [2021-02-24 00:18:56,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-24 00:18:56,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2337 transitions. [2021-02-24 00:18:56,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-02-24 00:18:56,736 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:56,736 INFO L422 BasicCegarLoop]: trace histogram [28, 27, 27, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:56,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-02-24 00:18:56,736 INFO L428 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:56,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:56,737 INFO L82 PathProgramCache]: Analyzing trace with hash -990598413, now seen corresponding path program 4 times [2021-02-24 00:18:56,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:56,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005721599] [2021-02-24 00:18:56,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:56,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:56,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:56,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:56,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:56,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:56,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:56,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:56,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:56,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:56,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:56,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:56,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:56,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-24 00:18:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-02-24 00:18:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-24 00:18:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 00:18:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-02-24 00:18:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-24 00:18:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-24 00:18:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-24 00:18:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-24 00:18:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:18:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 00:18:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-24 00:18:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-02-24 00:18:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:18:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-24 00:18:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-02-24 00:18:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-02-24 00:18:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:56,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-02-24 00:18:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:56,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:56,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:57,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 72 proven. 25 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-02-24 00:18:57,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1005721599] [2021-02-24 00:18:57,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:18:57,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-02-24 00:18:57,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726640442] [2021-02-24 00:18:57,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-24 00:18:57,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:18:57,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-24 00:18:57,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-02-24 00:18:57,019 INFO L87 Difference]: Start difference. First operand 1660 states and 2337 transitions. Second operand 16 states. [2021-02-24 00:18:59,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:59,394 INFO L93 Difference]: Finished difference Result 1976 states and 2777 transitions. [2021-02-24 00:18:59,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-02-24 00:18:59,394 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 209 [2021-02-24 00:18:59,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:59,410 INFO L225 Difference]: With dead ends: 1976 [2021-02-24 00:18:59,410 INFO L226 Difference]: Without dead ends: 1966 [2021-02-24 00:18:59,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=225, Invalid=1107, Unknown=0, NotChecked=0, Total=1332 [2021-02-24 00:18:59,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2021-02-24 00:18:59,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1721. [2021-02-24 00:18:59,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1721 states. [2021-02-24 00:18:59,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2423 transitions. [2021-02-24 00:18:59,704 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2423 transitions. Word has length 209 [2021-02-24 00:18:59,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:59,705 INFO L480 AbstractCegarLoop]: Abstraction has 1721 states and 2423 transitions. [2021-02-24 00:18:59,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-24 00:18:59,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2423 transitions. [2021-02-24 00:18:59,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-02-24 00:18:59,711 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:18:59,711 INFO L422 BasicCegarLoop]: trace histogram [32, 31, 31, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:18:59,711 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-02-24 00:18:59,711 INFO L428 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:18:59,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:18:59,712 INFO L82 PathProgramCache]: Analyzing trace with hash 278752937, now seen corresponding path program 7 times [2021-02-24 00:18:59,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:18:59,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717390593] [2021-02-24 00:18:59,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:18:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:59,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:59,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:59,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:59,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:59,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:59,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:59,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:59,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:59,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:59,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:18:59,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:59,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:18:59,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:18:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:18:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:18:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:18:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:18:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:18:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:18:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:18:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:18:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:18:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:18:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-02-24 00:18:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-24 00:18:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:18:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:18:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-24 00:18:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 00:18:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-24 00:18:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 00:18:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-24 00:18:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-02-24 00:18:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-24 00:18:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-24 00:18:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-02-24 00:18:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-02-24 00:18:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-24 00:18:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-02-24 00:18:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-02-24 00:18:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-02-24 00:18:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-02-24 00:18:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-02-24 00:18:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:18:59,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 00:18:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:18:59,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:18:59,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:00,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 92 proven. 26 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2021-02-24 00:19:00,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717390593] [2021-02-24 00:19:00,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:19:00,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-02-24 00:19:00,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884467974] [2021-02-24 00:19:00,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-24 00:19:00,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:19:00,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-24 00:19:00,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2021-02-24 00:19:00,048 INFO L87 Difference]: Start difference. First operand 1721 states and 2423 transitions. Second operand 16 states. [2021-02-24 00:19:02,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:19:02,470 INFO L93 Difference]: Finished difference Result 2231 states and 3161 transitions. [2021-02-24 00:19:02,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-02-24 00:19:02,470 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 238 [2021-02-24 00:19:02,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:19:02,490 INFO L225 Difference]: With dead ends: 2231 [2021-02-24 00:19:02,491 INFO L226 Difference]: Without dead ends: 2229 [2021-02-24 00:19:02,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=232, Invalid=1100, Unknown=0, NotChecked=0, Total=1332 [2021-02-24 00:19:02,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2021-02-24 00:19:02,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 1721. [2021-02-24 00:19:02,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1721 states. [2021-02-24 00:19:02,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2423 transitions. [2021-02-24 00:19:02,833 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2423 transitions. Word has length 238 [2021-02-24 00:19:02,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:19:02,833 INFO L480 AbstractCegarLoop]: Abstraction has 1721 states and 2423 transitions. [2021-02-24 00:19:02,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-24 00:19:02,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2423 transitions. [2021-02-24 00:19:02,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-02-24 00:19:02,840 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:19:02,840 INFO L422 BasicCegarLoop]: trace histogram [34, 33, 33, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:19:02,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-02-24 00:19:02,841 INFO L428 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:19:02,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:19:02,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1666626428, now seen corresponding path program 5 times [2021-02-24 00:19:02,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:19:02,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328031392] [2021-02-24 00:19:02,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:19:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:02,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:02,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:02,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:02,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:02,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:02,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:02,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:02,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:02,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:02,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:02,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:02,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:02,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:02,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:02,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:02,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:02,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:02,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:02,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:02,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:02,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:02,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:02,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:02,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:02,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:02,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:02,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:02,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:03,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:03,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:03,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:19:03,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:19:03,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:19:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:19:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:19:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:19:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:19:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:19:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:19:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:19:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:19:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:19:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:19:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-02-24 00:19:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-24 00:19:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:19:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:19:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-24 00:19:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 00:19:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-24 00:19:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 00:19:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-24 00:19:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-02-24 00:19:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-24 00:19:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-24 00:19:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-02-24 00:19:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-02-24 00:19:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-24 00:19:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-02-24 00:19:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-02-24 00:19:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-02-24 00:19:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-02-24 00:19:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-02-24 00:19:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 00:19:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-02-24 00:19:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-02-24 00:19:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:03,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:03,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:03,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2232 backedges. 99 proven. 21 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2021-02-24 00:19:03,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328031392] [2021-02-24 00:19:03,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:19:03,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2021-02-24 00:19:03,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878719064] [2021-02-24 00:19:03,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-24 00:19:03,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:19:03,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-24 00:19:03,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2021-02-24 00:19:03,338 INFO L87 Difference]: Start difference. First operand 1721 states and 2423 transitions. Second operand 20 states. [2021-02-24 00:19:06,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:19:06,062 INFO L93 Difference]: Finished difference Result 1919 states and 2690 transitions. [2021-02-24 00:19:06,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-02-24 00:19:06,063 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 248 [2021-02-24 00:19:06,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:19:06,076 INFO L225 Difference]: With dead ends: 1919 [2021-02-24 00:19:06,077 INFO L226 Difference]: Without dead ends: 1909 [2021-02-24 00:19:06,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=362, Invalid=1800, Unknown=0, NotChecked=0, Total=2162 [2021-02-24 00:19:06,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2021-02-24 00:19:06,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1811. [2021-02-24 00:19:06,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1811 states. [2021-02-24 00:19:06,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2548 transitions. [2021-02-24 00:19:06,416 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2548 transitions. Word has length 248 [2021-02-24 00:19:06,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:19:06,417 INFO L480 AbstractCegarLoop]: Abstraction has 1811 states and 2548 transitions. [2021-02-24 00:19:06,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-24 00:19:06,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2548 transitions. [2021-02-24 00:19:06,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-02-24 00:19:06,424 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:19:06,424 INFO L422 BasicCegarLoop]: trace histogram [38, 37, 37, 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, 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] [2021-02-24 00:19:06,425 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-02-24 00:19:06,425 INFO L428 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:19:06,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:19:06,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1080628580, now seen corresponding path program 8 times [2021-02-24 00:19:06,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:19:06,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806895050] [2021-02-24 00:19:06,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:19:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:06,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:06,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:06,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:06,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:06,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:06,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:06,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:06,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:06,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:06,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:06,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:06,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:06,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:19:06,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:19:06,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:19:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:19:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:19:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:19:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:19:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:19:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:19:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:19:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:19:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:19:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:19:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-02-24 00:19:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-24 00:19:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:19:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:19:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-24 00:19:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 00:19:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-24 00:19:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 00:19:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:19:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 00:19:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-24 00:19:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-02-24 00:19:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:19:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-24 00:19:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-24 00:19:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-02-24 00:19:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-02-24 00:19:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-02-24 00:19:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-02-24 00:19:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-02-24 00:19:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 00:19:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-02-24 00:19:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-02-24 00:19:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-02-24 00:19:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-02-24 00:19:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-02-24 00:19:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-02-24 00:19:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:06,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:06,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:06,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2826 backedges. 124 proven. 38 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2021-02-24 00:19:06,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806895050] [2021-02-24 00:19:06,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:19:06,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2021-02-24 00:19:06,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388752884] [2021-02-24 00:19:06,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-24 00:19:06,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:19:06,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-24 00:19:06,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2021-02-24 00:19:06,879 INFO L87 Difference]: Start difference. First operand 1811 states and 2548 transitions. Second operand 18 states. [2021-02-24 00:19:09,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:19:09,583 INFO L93 Difference]: Finished difference Result 2051 states and 2879 transitions. [2021-02-24 00:19:09,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-24 00:19:09,583 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 277 [2021-02-24 00:19:09,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:19:09,597 INFO L225 Difference]: With dead ends: 2051 [2021-02-24 00:19:09,598 INFO L226 Difference]: Without dead ends: 2049 [2021-02-24 00:19:09,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=299, Invalid=1423, Unknown=0, NotChecked=0, Total=1722 [2021-02-24 00:19:09,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2021-02-24 00:19:09,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 1397. [2021-02-24 00:19:09,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1397 states. [2021-02-24 00:19:09,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 1939 transitions. [2021-02-24 00:19:09,955 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 1939 transitions. Word has length 277 [2021-02-24 00:19:09,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:19:09,955 INFO L480 AbstractCegarLoop]: Abstraction has 1397 states and 1939 transitions. [2021-02-24 00:19:09,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-02-24 00:19:09,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 1939 transitions. [2021-02-24 00:19:09,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-02-24 00:19:09,960 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:19:09,960 INFO L422 BasicCegarLoop]: trace histogram [40, 39, 39, 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, 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] [2021-02-24 00:19:09,960 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-02-24 00:19:09,961 INFO L428 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:19:09,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:19:09,961 INFO L82 PathProgramCache]: Analyzing trace with hash -582329948, now seen corresponding path program 9 times [2021-02-24 00:19:09,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:19:09,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730873581] [2021-02-24 00:19:09,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:19:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:19:10,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:19:10,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:19:10,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:19:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 00:19:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 00:19:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 00:19:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 00:19:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 00:19:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:19:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 00:19:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 00:19:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 00:19:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 00:19:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-02-24 00:19:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-24 00:19:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:19:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-24 00:19:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-24 00:19:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 00:19:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-24 00:19:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 00:19:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 00:19:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 00:19:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-24 00:19:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-02-24 00:19:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:19:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-24 00:19:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-24 00:19:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-02-24 00:19:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-02-24 00:19:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-02-24 00:19:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-02-24 00:19:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-02-24 00:19:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-02-24 00:19:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-02-24 00:19:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-02-24 00:19:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-02-24 00:19:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-02-24 00:19:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-02-24 00:19:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-02-24 00:19:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-02-24 00:19:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-02-24 00:19:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:19:10,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:19:10,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:19:10,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3134 backedges. 138 proven. 32 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2021-02-24 00:19:10,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730873581] [2021-02-24 00:19:10,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:19:10,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2021-02-24 00:19:10,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669368887] [2021-02-24 00:19:10,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-24 00:19:10,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:19:10,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-24 00:19:10,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2021-02-24 00:19:10,420 INFO L87 Difference]: Start difference. First operand 1397 states and 1939 transitions. Second operand 22 states. [2021-02-24 00:19:13,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:19:13,263 INFO L93 Difference]: Finished difference Result 1495 states and 2065 transitions. [2021-02-24 00:19:13,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-02-24 00:19:13,264 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 287 [2021-02-24 00:19:13,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:19:13,266 INFO L225 Difference]: With dead ends: 1495 [2021-02-24 00:19:13,266 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 00:19:13,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-02-24 00:19:13,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 00:19:13,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 00:19:13,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 00:19:13,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 00:19:13,272 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 287 [2021-02-24 00:19:13,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:19:13,272 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 00:19:13,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-02-24 00:19:13,272 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 00:19:13,272 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 00:19:13,272 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-02-24 00:19:13,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 00:19:15,012 WARN L202 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 318 DAG size of output: 251 [2021-02-24 00:19:15,207 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 122 [2021-02-24 00:19:15,473 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 149 [2021-02-24 00:19:15,788 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 148 [2021-02-24 00:19:17,069 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 375 DAG size of output: 292 [2021-02-24 00:19:17,204 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 112 [2021-02-24 00:19:17,526 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 158 [2021-02-24 00:19:17,716 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 129 [2021-02-24 00:19:18,110 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 233 [2021-02-24 00:19:18,304 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 157 [2021-02-24 00:19:18,457 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 137 [2021-02-24 00:19:18,803 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 212 [2021-02-24 00:19:19,512 WARN L202 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 214 [2021-02-24 00:19:20,385 WARN L202 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 273 [2021-02-24 00:19:20,559 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 158 [2021-02-24 00:19:20,745 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 158 [2021-02-24 00:19:20,928 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 152 [2021-02-24 00:19:21,650 WARN L202 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 292 [2021-02-24 00:19:22,279 WARN L202 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 256 [2021-02-24 00:19:24,292 WARN L202 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 549 DAG size of output: 306 [2021-02-24 00:19:24,785 WARN L202 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 205 [2021-02-24 00:19:25,652 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 203 [2021-02-24 00:19:26,028 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 212 [2021-02-24 00:19:26,644 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 157 [2021-02-24 00:19:26,865 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 143 [2021-02-24 00:19:28,016 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 423 DAG size of output: 329 [2021-02-24 00:19:29,189 WARN L202 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 256 [2021-02-24 00:19:29,449 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 154 [2021-02-24 00:19:31,641 WARN L202 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 522 DAG size of output: 301 [2021-02-24 00:19:32,149 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 226 [2021-02-24 00:19:32,323 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 157 [2021-02-24 00:19:32,704 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 175 [2021-02-24 00:19:32,872 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 150 [2021-02-24 00:19:33,250 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 211 [2021-02-24 00:19:33,421 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 157 [2021-02-24 00:19:33,669 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 159 [2021-02-24 00:19:34,826 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 435 DAG size of output: 340 [2021-02-24 00:19:35,542 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 105 [2021-02-24 00:19:36,863 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 227 DAG size of output: 25 [2021-02-24 00:19:37,102 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 18 [2021-02-24 00:19:37,474 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 21 [2021-02-24 00:19:37,755 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 16 [2021-02-24 00:19:39,390 WARN L202 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 251 DAG size of output: 23 [2021-02-24 00:19:39,579 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 19 [2021-02-24 00:19:39,795 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 25 [2021-02-24 00:19:40,400 WARN L202 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 22 [2021-02-24 00:19:40,666 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 20 [2021-02-24 00:19:41,496 WARN L202 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 30 [2021-02-24 00:19:42,125 WARN L202 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 22 [2021-02-24 00:19:42,438 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 18 [2021-02-24 00:19:43,232 WARN L202 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 26 [2021-02-24 00:19:44,171 WARN L202 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 33 [2021-02-24 00:19:45,815 WARN L202 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 243 DAG size of output: 30 [2021-02-24 00:19:46,436 WARN L202 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 22 [2021-02-24 00:19:47,071 WARN L202 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 22 [2021-02-24 00:19:47,409 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 16 [2021-02-24 00:19:49,059 WARN L202 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 251 DAG size of output: 23 [2021-02-24 00:19:49,269 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 16 [2021-02-24 00:19:50,378 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 235 DAG size of output: 23 [2021-02-24 00:19:50,595 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 17 [2021-02-24 00:19:52,705 WARN L202 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 271 DAG size of output: 25 [2021-02-24 00:19:53,032 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 26 [2021-02-24 00:19:53,910 WARN L202 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 27 [2021-02-24 00:19:54,667 WARN L202 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 21 [2021-02-24 00:19:55,773 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 189 DAG size of output: 27 [2021-02-24 00:19:56,479 WARN L202 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 22 [2021-02-24 00:19:56,872 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 16 [2021-02-24 00:19:59,043 WARN L202 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 300 DAG size of output: 33 [2021-02-24 00:20:00,176 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 235 DAG size of output: 23 [2021-02-24 00:20:00,375 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 16 [2021-02-24 00:20:00,797 WARN L202 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 23 [2021-02-24 00:20:01,057 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 16 [2021-02-24 00:20:04,183 WARN L202 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 275 DAG size of output: 27 [2021-02-24 00:20:04,419 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 16 [2021-02-24 00:20:05,701 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 204 DAG size of output: 23 [2021-02-24 00:20:06,410 WARN L202 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 22 [2021-02-24 00:20:07,163 WARN L202 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 22 [2021-02-24 00:20:07,578 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 22 [2021-02-24 00:20:08,407 WARN L202 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 34 [2021-02-24 00:20:09,119 WARN L202 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 22 [2021-02-24 00:20:09,564 WARN L202 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2021-02-24 00:20:12,068 WARN L202 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 310 DAG size of output: 38 [2021-02-24 00:20:12,307 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 16 [2021-02-24 00:20:12,318 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-24 00:20:12,318 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-24 00:20:12,318 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-24 00:20:12,318 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-02-24 00:20:12,318 INFO L189 CegarLoopUtils]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-02-24 00:20:12,319 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:20:12,319 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 00:20:12,319 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2021-02-24 00:20:12,319 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-24 00:20:12,319 INFO L192 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: true [2021-02-24 00:20:12,319 INFO L192 CegarLoopUtils]: At program point L12-2(line 12) the Hoare annotation is: true [2021-02-24 00:20:12,320 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-02-24 00:20:12,320 INFO L192 CegarLoopUtils]: At program point L12-3(line 12) the Hoare annotation is: true [2021-02-24 00:20:12,320 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:20:12,320 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:20:12,320 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:20:12,320 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 00:20:12,321 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 00:20:12,321 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-02-24 00:20:12,321 INFO L189 CegarLoopUtils]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-02-24 00:20:12,321 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-02-24 00:20:12,321 INFO L189 CegarLoopUtils]: For program point L15-3(lines 14 16) no Hoare annotation was computed. [2021-02-24 00:20:12,321 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-02-24 00:20:12,321 INFO L185 CegarLoopUtils]: At program point L35-3(lines 35 64) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= 1 main_~j~0) (<= 1 main_~i~0) .cse0) (and (<= 2 main_~len~0) (<= main_~len~0 main_~i~0) .cse0) (and (<= (+ main_~i~0 1) main_~len~0) (= main_~j~0 0) (<= 0 main_~i~0) .cse0))) [2021-02-24 00:20:12,322 INFO L192 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: true [2021-02-24 00:20:12,322 INFO L192 CegarLoopUtils]: At program point L31-1(line 31) the Hoare annotation is: true [2021-02-24 00:20:12,322 INFO L185 CegarLoopUtils]: At program point L60(line 60) the Hoare annotation is: (let ((.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse4 (= main_~j~0 0)) (.cse1 (<= 1 main_~i~0)) (.cse5 (<= (+ main_~i~0 2) main_~len~0)) (.cse2 (< main_~i~0 main_~len~0)) (.cse3 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (<= main_~len~0 (+ main_~i~0 1)) .cse1 .cse2 .cse3) (and .cse0 (= main_~i~0 0) .cse4 .cse2 .cse3) (and (<= 1 main_~j~0) .cse0 .cse1 .cse5 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse5 .cse2 .cse3))) [2021-02-24 00:20:12,322 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-24 00:20:12,322 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 24 67) the Hoare annotation is: true [2021-02-24 00:20:12,323 INFO L185 CegarLoopUtils]: At program point L56(lines 36 63) the Hoare annotation is: (let ((.cse1 (<= 1 main_~j~0)) (.cse3 (+ main_~i~0 1)) (.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse2 (< main_~i~0 main_~len~0)) (.cse4 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 .cse1 (<= 2 main_~len~0) .cse2 (<= main_~len~0 .cse3) .cse4) (and .cse0 .cse1 (<= 1 main_~i~0) (< .cse3 main_~len~0) .cse4) (and .cse0 (= main_~j~0 0) .cse2 (<= 0 main_~i~0) .cse4))) [2021-02-24 00:20:12,323 INFO L185 CegarLoopUtils]: At program point L52(line 52) the Hoare annotation is: (and (<= (+ main_~j~0 3) main_~bufsize~0) (<= 2 main_~i~0) (<= 2 main_~len~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0)) [2021-02-24 00:20:12,323 INFO L185 CegarLoopUtils]: At program point L52-1(line 52) the Hoare annotation is: (and (<= (+ main_~j~0 3) main_~bufsize~0) (<= 2 main_~i~0) (<= 2 main_~len~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0)) [2021-02-24 00:20:12,323 INFO L185 CegarLoopUtils]: At program point L48(line 48) the Hoare annotation is: (and (<= 1 main_~j~0) (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0)) [2021-02-24 00:20:12,323 INFO L185 CegarLoopUtils]: At program point L44(line 44) the Hoare annotation is: (let ((.cse1 (= main_~j~0 0)) (.cse2 (= |main_#t~post6| 0)) (.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse5 (<= 1 main_~i~0)) (.cse3 (< (+ main_~i~0 1) main_~len~0)) (.cse4 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (= main_~i~0 0) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse3 .cse4) (and (<= 1 main_~j~0) .cse0 .cse5 (<= (+ |main_#t~post6| 5) main_~bufsize~0) .cse3 .cse4 (<= 1 |main_#t~post6|)))) [2021-02-24 00:20:12,323 INFO L185 CegarLoopUtils]: At program point L44-1(line 44) the Hoare annotation is: (let ((.cse0 (<= 1 main_~j~0)) (.cse1 (= |main_#t~post6| 0)) (.cse5 (<= 1 main_~i~0)) (.cse2 (< (+ main_~i~0 1) main_~len~0)) (.cse3 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse4 (<= (+ main_~j~0 4) main_~bufsize~0))) (or (and .cse0 (= main_~i~0 0) .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= (+ main_~i~0 2) main_~len~0) .cse5 .cse1 .cse3 .cse4) (and .cse5 (<= (+ |main_#t~post6| 5) main_~bufsize~0) .cse2 .cse3 (<= 1 |main_#t~post6|) (<= 2 main_~j~0) .cse4))) [2021-02-24 00:20:12,323 INFO L185 CegarLoopUtils]: At program point L40(line 40) the Hoare annotation is: (let ((.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse1 (< (+ main_~i~0 1) main_~len~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (= main_~j~0 0) (<= 0 main_~i~0) .cse1 .cse2) (and .cse0 (<= 1 main_~j~0) (<= 1 main_~i~0) .cse1 .cse2))) [2021-02-24 00:20:12,324 INFO L185 CegarLoopUtils]: At program point L40-1(line 40) the Hoare annotation is: (let ((.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse1 (< (+ main_~i~0 1) main_~len~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (= main_~j~0 0) (<= 0 main_~i~0) .cse1 .cse2) (and .cse0 (<= 1 main_~j~0) (<= 1 main_~i~0) .cse1 .cse2))) [2021-02-24 00:20:12,324 INFO L185 CegarLoopUtils]: At program point L36(lines 36 63) the Hoare annotation is: (let ((.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse1 (< main_~i~0 main_~len~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (<= 1 main_~j~0) (<= 1 main_~i~0) .cse1 .cse2) (and .cse0 (= main_~j~0 0) .cse1 (<= 0 main_~i~0) .cse2))) [2021-02-24 00:20:12,324 INFO L192 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: true [2021-02-24 00:20:12,324 INFO L192 CegarLoopUtils]: At program point L32-1(line 32) the Hoare annotation is: true [2021-02-24 00:20:12,324 INFO L192 CegarLoopUtils]: At program point L32-2(line 32) the Hoare annotation is: true [2021-02-24 00:20:12,324 INFO L185 CegarLoopUtils]: At program point L61(line 61) the Hoare annotation is: (let ((.cse1 (= main_~j~0 0)) (.cse3 (= 0 |main_#t~post11|)) (.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse2 (< main_~i~0 main_~len~0)) (.cse5 (<= 1 main_~i~0)) (.cse4 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (= main_~i~0 0) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 (<= (+ main_~i~0 2) main_~len~0) .cse1 .cse3 .cse4) (and .cse0 (<= main_~len~0 (+ main_~i~0 1)) .cse5 .cse2 .cse4) (and (<= 1 main_~j~0) .cse0 .cse2 .cse5 .cse4 (<= 1 |main_#t~post11|)))) [2021-02-24 00:20:12,324 INFO L192 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-02-24 00:20:12,324 INFO L185 CegarLoopUtils]: At program point L61-1(line 61) the Hoare annotation is: (let ((.cse1 (< main_~i~0 main_~len~0)) (.cse0 (<= 1 main_~j~0)) (.cse2 (= 0 |main_#t~post11|)) (.cse4 (<= 1 main_~i~0)) (.cse5 (<= (+ main_~i~0 2) main_~len~0)) (.cse3 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (= main_~i~0 0) .cse1 .cse2 .cse3) (and (<= main_~len~0 (+ main_~i~0 1)) .cse1 .cse4 .cse3) (and .cse0 .cse4 .cse5 .cse2 .cse3) (and .cse4 .cse5 .cse3 (<= 2 main_~j~0) (<= 1 |main_#t~post11|)))) [2021-02-24 00:20:12,324 INFO L185 CegarLoopUtils]: At program point L57(line 57) the Hoare annotation is: (let ((.cse1 (<= 1 main_~i~0)) (.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse4 (= main_~j~0 0)) (.cse2 (< main_~i~0 main_~len~0)) (.cse3 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (<= 1 main_~j~0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3) (and .cse0 (= main_~i~0 0) .cse4 .cse2 .cse3))) [2021-02-24 00:20:12,325 INFO L185 CegarLoopUtils]: At program point L53(line 53) the Hoare annotation is: (and (<= (+ main_~j~0 3) main_~bufsize~0) (<= 2 main_~i~0) (<= 2 main_~len~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0)) [2021-02-24 00:20:12,325 INFO L185 CegarLoopUtils]: At program point L49(line 49) the Hoare annotation is: (and (<= 1 main_~j~0) (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0)) [2021-02-24 00:20:12,325 INFO L185 CegarLoopUtils]: At program point L45(line 45) the Hoare annotation is: (let ((.cse0 (<= 1 main_~j~0)) (.cse1 (< (+ main_~i~0 1) main_~len~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse3 (<= (+ main_~j~0 4) main_~bufsize~0))) (or (and .cse0 (<= 1 main_~i~0) .cse1 .cse2 .cse3) (and .cse0 (= main_~i~0 0) .cse1 .cse2 .cse3))) [2021-02-24 00:20:12,325 INFO L185 CegarLoopUtils]: At program point L45-1(line 45) the Hoare annotation is: (let ((.cse0 (<= 1 main_~j~0)) (.cse1 (<= (+ |main_#t~post7| 2) main_~len~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse3 (<= (+ main_~j~0 4) main_~bufsize~0))) (or (and .cse0 (<= 1 main_~i~0) .cse1 (<= 1 |main_#t~post7|) (< (+ main_~i~0 1) main_~len~0) .cse2 .cse3) (and .cse0 (= |main_#t~post7| 0) (= main_~i~0 0) .cse1 .cse2 .cse3))) [2021-02-24 00:20:12,325 INFO L185 CegarLoopUtils]: At program point L45-2(line 45) the Hoare annotation is: (let ((.cse0 (<= 1 main_~j~0)) (.cse1 (<= (+ main_~i~0 1) main_~len~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse3 (<= (+ main_~j~0 4) main_~bufsize~0))) (or (and .cse0 (<= 2 main_~i~0) .cse1 (<= (+ |main_#t~post7| 2) main_~len~0) (<= 1 |main_#t~post7|) .cse2 .cse3) (and .cse0 (= |main_#t~post7| 0) .cse1 (<= 1 main_~i~0) .cse2 .cse3))) [2021-02-24 00:20:12,325 INFO L185 CegarLoopUtils]: At program point L41(line 41) the Hoare annotation is: (let ((.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse1 (<= 0 main_~j~0)) (.cse2 (< (+ main_~i~0 1) main_~len~0)) (.cse3 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 .cse1 (= main_~i~0 0) (= main_~j~0 0) .cse2 .cse3) (and .cse0 .cse1 (<= 1 main_~i~0) .cse2 .cse3))) [2021-02-24 00:20:12,325 INFO L185 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: (let ((.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse1 (< (+ main_~i~0 1) main_~len~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (= main_~j~0 0) (<= 0 main_~i~0) .cse1 .cse2) (and .cse0 (<= 1 main_~j~0) (<= 1 main_~i~0) .cse1 .cse2))) [2021-02-24 00:20:12,325 INFO L185 CegarLoopUtils]: At program point L37-1(line 37) the Hoare annotation is: (let ((.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse1 (< (+ main_~i~0 1) main_~len~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (= main_~j~0 0) (<= 0 main_~i~0) .cse1 .cse2) (and .cse0 (<= 1 main_~j~0) (<= 1 main_~i~0) .cse1 .cse2))) [2021-02-24 00:20:12,326 INFO L192 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: true [2021-02-24 00:20:12,326 INFO L185 CegarLoopUtils]: At program point L62(line 62) the Hoare annotation is: (let ((.cse0 (< main_~i~0 main_~len~0)) (.cse3 (<= 1 main_~j~0)) (.cse1 (<= 1 main_~i~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 .cse1 .cse2) (and .cse3 (= main_~i~0 0) .cse0 .cse2) (and .cse3 .cse1 (<= (+ main_~i~0 2) main_~len~0) .cse2))) [2021-02-24 00:20:12,326 INFO L192 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: true [2021-02-24 00:20:12,326 INFO L185 CegarLoopUtils]: At program point L62-1(line 62) the Hoare annotation is: (let ((.cse1 (< main_~i~0 main_~len~0)) (.cse0 (<= 1 main_~j~0)) (.cse3 (<= 1 main_~i~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (= 0 |main_#t~post12|) (= main_~i~0 0) .cse1 .cse2) (and .cse1 .cse3 (<= main_~len~0 (+ main_~i~0 1)) (<= main_~len~0 (+ |main_#t~post12| 1)) .cse2) (and .cse0 (<= 1 |main_#t~post12|) .cse3 (<= (+ main_~i~0 2) main_~len~0) .cse2))) [2021-02-24 00:20:12,326 INFO L185 CegarLoopUtils]: At program point L62-2(line 62) the Hoare annotation is: (let ((.cse0 (<= 1 main_~j~0)) (.cse1 (<= 2 main_~len~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (<= 2 main_~i~0) (<= 1 |main_#t~post12|) .cse1 .cse2) (and .cse0 (= 0 |main_#t~post12|) (<= 1 main_~i~0) .cse2) (and .cse1 (<= main_~len~0 (+ |main_#t~post12| 1)) (<= main_~len~0 main_~i~0) .cse2))) [2021-02-24 00:20:12,326 INFO L185 CegarLoopUtils]: At program point L58(line 58) the Hoare annotation is: (let ((.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse4 (<= 1 main_~i~0)) (.cse2 (= main_~j~0 0)) (.cse1 (< main_~i~0 main_~len~0)) (.cse3 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (= main_~i~0 0) .cse1 .cse2 .cse3) (and .cse0 (<= 1 main_~j~0) .cse4 .cse1 .cse3) (and .cse0 .cse4 .cse2 .cse1 .cse3))) [2021-02-24 00:20:12,326 INFO L185 CegarLoopUtils]: At program point L54(line 54) the Hoare annotation is: (and (<= (+ main_~j~0 3) main_~bufsize~0) (<= 2 main_~i~0) (<= 2 main_~len~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 |main_#t~post10|) (<= 2 main_~j~0)) [2021-02-24 00:20:12,326 INFO L185 CegarLoopUtils]: At program point L54-1(line 54) the Hoare annotation is: (and (<= 2 main_~i~0) (<= 3 main_~j~0) (<= 2 main_~len~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 |main_#t~post10|)) [2021-02-24 00:20:12,327 INFO L185 CegarLoopUtils]: At program point L50(line 50) the Hoare annotation is: (and (<= 1 main_~j~0) (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ |main_#t~post8| 4) main_~bufsize~0) (<= 1 |main_#t~post8|) (<= (+ main_~j~0 4) main_~bufsize~0)) [2021-02-24 00:20:12,327 INFO L185 CegarLoopUtils]: At program point L50-1(line 50) the Hoare annotation is: (and (<= (+ main_~j~0 3) main_~bufsize~0) (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ |main_#t~post8| 4) main_~bufsize~0) (<= 1 |main_#t~post8|)) [2021-02-24 00:20:12,327 INFO L185 CegarLoopUtils]: At program point L46(line 46) the Hoare annotation is: (and (<= 1 main_~j~0) (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0)) [2021-02-24 00:20:12,327 INFO L185 CegarLoopUtils]: At program point L46-1(line 46) the Hoare annotation is: (and (<= 1 main_~j~0) (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0)) [2021-02-24 00:20:12,327 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 24 67) the Hoare annotation is: true [2021-02-24 00:20:12,327 INFO L185 CegarLoopUtils]: At program point L42(line 42) the Hoare annotation is: (let ((.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse1 (<= 0 main_~j~0)) (.cse2 (< (+ main_~i~0 1) main_~len~0)) (.cse3 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 .cse1 (= main_~i~0 0) (= main_~j~0 0) .cse2 .cse3) (and .cse0 .cse1 (<= 1 main_~i~0) .cse2 .cse3))) [2021-02-24 00:20:12,328 INFO L185 CegarLoopUtils]: At program point L38(line 38) the Hoare annotation is: (let ((.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse1 (< (+ main_~i~0 1) main_~len~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (= main_~j~0 0) (<= 0 main_~i~0) .cse1 .cse2) (and .cse0 (<= 1 main_~j~0) (<= 1 main_~i~0) .cse1 .cse2))) [2021-02-24 00:20:12,328 INFO L185 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: (<= (+ main_~limit~0 4) main_~bufsize~0) [2021-02-24 00:20:12,328 INFO L185 CegarLoopUtils]: At program point L34-3(lines 34 65) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (let ((.cse1 (<= 1 main_~i~0))) (or (and (= main_~j~0 0) .cse1) (and (<= 1 main_~j~0) .cse1)))) (and (<= 2 main_~i~0) (<= 2 main_~len~0) .cse0) (and (= main_~i~0 0) .cse0))) [2021-02-24 00:20:12,328 INFO L192 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: true [2021-02-24 00:20:12,328 INFO L192 CegarLoopUtils]: At program point L34-4(lines 34 65) the Hoare annotation is: true [2021-02-24 00:20:12,328 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 24 67) the Hoare annotation is: true [2021-02-24 00:20:12,328 INFO L192 CegarLoopUtils]: At program point L30-1(line 30) the Hoare annotation is: true [2021-02-24 00:20:12,328 INFO L192 CegarLoopUtils]: At program point L30-2(line 30) the Hoare annotation is: true [2021-02-24 00:20:12,329 INFO L185 CegarLoopUtils]: At program point L59(line 59) the Hoare annotation is: (let ((.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse4 (<= 1 main_~i~0)) (.cse2 (= main_~j~0 0)) (.cse1 (< main_~i~0 main_~len~0)) (.cse3 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (= main_~i~0 0) .cse1 .cse2 .cse3) (and .cse0 (<= 1 main_~j~0) .cse4 .cse1 .cse3) (and .cse0 .cse4 .cse2 .cse1 .cse3))) [2021-02-24 00:20:12,329 INFO L185 CegarLoopUtils]: At program point L51(line 51) the Hoare annotation is: (and (<= (+ main_~j~0 3) main_~bufsize~0) (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0)) [2021-02-24 00:20:12,329 INFO L185 CegarLoopUtils]: At program point L51-1(line 51) the Hoare annotation is: (and (<= (+ main_~j~0 3) main_~bufsize~0) (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~i~0) (<= 1 |main_#t~post9|) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0)) [2021-02-24 00:20:12,329 INFO L185 CegarLoopUtils]: At program point L51-2(line 51) the Hoare annotation is: (and (<= (+ main_~j~0 3) main_~bufsize~0) (<= 2 main_~i~0) (<= 2 main_~len~0) (<= 1 |main_#t~post9|) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0)) [2021-02-24 00:20:12,329 INFO L185 CegarLoopUtils]: At program point L47(line 47) the Hoare annotation is: (and (<= 1 main_~j~0) (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0)) [2021-02-24 00:20:12,329 INFO L185 CegarLoopUtils]: At program point L43(line 43) the Hoare annotation is: (let ((.cse1 (<= 1 main_~i~0)) (.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse4 (= main_~j~0 0)) (.cse2 (< (+ main_~i~0 1) main_~len~0)) (.cse3 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= 1 main_~j~0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3) (and .cse0 (= main_~i~0 0) .cse4 .cse2 .cse3))) [2021-02-24 00:20:12,329 INFO L185 CegarLoopUtils]: At program point L39(line 39) the Hoare annotation is: (let ((.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse1 (< (+ main_~i~0 1) main_~len~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (= main_~j~0 0) (<= 0 main_~i~0) .cse1 .cse2) (and .cse0 (<= 1 main_~j~0) (<= 1 main_~i~0) .cse1 .cse2))) [2021-02-24 00:20:12,329 INFO L185 CegarLoopUtils]: At program point L39-1(line 39) the Hoare annotation is: (let ((.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse1 (< (+ main_~i~0 1) main_~len~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (= main_~j~0 0) (<= 0 main_~i~0) .cse1 .cse2) (and .cse0 (<= 1 main_~j~0) (<= 1 main_~i~0) .cse1 .cse2))) [2021-02-24 00:20:12,330 INFO L185 CegarLoopUtils]: At program point L39-3(line 39) the Hoare annotation is: (let ((.cse0 (<= (+ main_~j~0 5) main_~bufsize~0)) (.cse1 (< (+ main_~i~0 1) main_~len~0)) (.cse2 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and .cse0 (= main_~j~0 0) (<= 0 main_~i~0) .cse1 .cse2) (and .cse0 (<= 1 main_~j~0) (<= 1 main_~i~0) .cse1 .cse2))) [2021-02-24 00:20:12,330 INFO L185 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: (let ((.cse0 (< main_~i~0 main_~len~0)) (.cse1 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= 2 main_~i~0) .cse0 .cse1) (and (<= 1 main_~i~0) .cse1 (or (and .cse0 (= main_~j~0 0)) (and (<= 1 main_~j~0) .cse0))) (and (= main_~i~0 0) .cse0 .cse1))) [2021-02-24 00:20:12,330 INFO L185 CegarLoopUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:20:12,330 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-02-24 00:20:12,330 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:20:12,330 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:20:12,330 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:20:12,330 INFO L185 CegarLoopUtils]: At program point L18(lines 18 20) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:20:12,330 INFO L185 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:20:12,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:20:12 BoogieIcfgContainer [2021-02-24 00:20:12,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 00:20:12,383 INFO L168 Benchmark]: Toolchain (without parser) took 130982.24 ms. Allocated memory was 170.9 MB in the beginning and 1.1 GB in the end (delta: 901.8 MB). Free memory was 147.1 MB in the beginning and 632.1 MB in the end (delta: -485.0 MB). Peak memory consumption was 665.8 MB. Max. memory is 8.0 GB. [2021-02-24 00:20:12,383 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 170.9 MB. Free memory is still 143.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 00:20:12,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.44 ms. Allocated memory is still 170.9 MB. Free memory was 145.8 MB in the beginning and 135.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-24 00:20:12,384 INFO L168 Benchmark]: Boogie Preprocessor took 65.77 ms. Allocated memory is still 170.9 MB. Free memory was 135.3 MB in the beginning and 133.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 00:20:12,384 INFO L168 Benchmark]: RCFGBuilder took 634.96 ms. Allocated memory is still 170.9 MB. Free memory was 133.7 MB in the beginning and 149.4 MB in the end (delta: -15.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. [2021-02-24 00:20:12,384 INFO L168 Benchmark]: TraceAbstraction took 129963.47 ms. Allocated memory was 170.9 MB in the beginning and 1.1 GB in the end (delta: 901.8 MB). Free memory was 148.9 MB in the beginning and 632.1 MB in the end (delta: -483.2 MB). Peak memory consumption was 667.1 MB. Max. memory is 8.0 GB. [2021-02-24 00:20:12,385 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 170.9 MB. Free memory is still 143.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 298.44 ms. Allocated memory is still 170.9 MB. Free memory was 145.8 MB in the beginning and 135.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 65.77 ms. Allocated memory is still 170.9 MB. Free memory was 135.3 MB in the beginning and 133.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 634.96 ms. Allocated memory is still 170.9 MB. Free memory was 133.7 MB in the beginning and 149.4 MB in the end (delta: -15.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 129963.47 ms. Allocated memory was 170.9 MB in the beginning and 1.1 GB in the end (delta: 901.8 MB). Free memory was 148.9 MB in the beginning and 632.1 MB in the end (delta: -483.2 MB). Peak memory consumption was 667.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((j + 5 <= bufsize && 1 <= j) && 2 <= len) && i < len) && len <= i + 1) && limit + 4 <= bufsize) || ((((j + 5 <= bufsize && 1 <= j) && 1 <= i) && i + 1 < len) && limit + 4 <= bufsize)) || ((((j + 5 <= bufsize && j == 0) && i < len) && 0 <= i) && limit + 4 <= bufsize) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((limit + 4 <= bufsize && ((j == 0 && 1 <= i) || (1 <= j && 1 <= i))) || ((2 <= i && 2 <= len) && limit + 4 <= bufsize)) || (i == 0 && limit + 4 <= bufsize) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((1 <= j && 1 <= i) && limit + 4 <= bufsize) || ((2 <= len && len <= i) && limit + 4 <= bufsize)) || (((i + 1 <= len && j == 0) && 0 <= i) && limit + 4 <= bufsize) - ProcedureContractResult [Line: 24]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 70.7s, OverallIterations: 45, TraceHistogramMax: 40, AutomataDifference: 55.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 59.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4726 SDtfs, 5596 SDslu, 12903 SDs, 0 SdLazy, 42458 SolverSat, 4822 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2657 GetRequests, 1675 SyntacticMatches, 0 SemanticMatches, 982 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4500 ImplicationChecksByTransitivity, 16.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1811occurred in iteration=43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.4s AutomataMinimizationTime, 45 MinimizatonAttempts, 3026 StatesRemovedByMinimization, 39 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 82 LocationsWithAnnotation, 5227 PreInvPairs, 7749 NumberOfFragments, 2126 HoareAnnotationTreeSize, 5227 FomulaSimplifications, 84196438442643 FormulaSimplificationTreeSizeReduction, 22.2s HoareSimplificationTime, 82 FomulaSimplificationsInter, 1893393011 FormulaSimplificationTreeSizeReductionInter, 36.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 6163 NumberOfCodeBlocks, 6163 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 6118 ConstructedInterpolants, 0 QuantifiedInterpolants, 1936372 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 45 InterpolantComputations, 13 PerfectInterpolantSequences, 31810/32299 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...