/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_10x0-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:50:08,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:50:08,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:50:08,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 01:50:08,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:50:08,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:50:08,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:50:08,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:50:08,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:50:08,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:50:08,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:50:08,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:50:08,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:50:08,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:50:08,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:50:08,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:50:08,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 01:50:08,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:50:08,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:50:08,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:50:08,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:50:08,732 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:50:08,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:50:08,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:50:08,737 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:50:08,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:50:08,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:50:08,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:50:08,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:50:08,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:50:08,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:50:08,740 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:50:08,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:50:08,741 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:50:08,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:50:08,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:50:08,742 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:50:08,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:50:08,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:50:08,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:50:08,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:50:08,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:50:08,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:50:08,743 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:50:08,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:50:09,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:50:09,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:50:09,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:50:09,182 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:50:09,183 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:50:09,184 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_10x0-1.c [2021-02-22 01:50:09,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/018739256/1fd0521463e24ea8ae2f0dde13b5b928/FLAG48e0c3cd4 [2021-02-22 01:50:09,894 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:50:09,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_10x0-1.c [2021-02-22 01:50:09,903 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/018739256/1fd0521463e24ea8ae2f0dde13b5b928/FLAG48e0c3cd4 [2021-02-22 01:50:10,246 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/018739256/1fd0521463e24ea8ae2f0dde13b5b928 [2021-02-22 01:50:10,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:50:10,266 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:50:10,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:50:10,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:50:10,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:50:10,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:50:10" (1/1) ... [2021-02-22 01:50:10,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c1d36b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:50:10, skipping insertion in model container [2021-02-22 01:50:10,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:50:10" (1/1) ... [2021-02-22 01:50:10,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:50:10,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:50:10,508 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_10x0-1.c[481,494] [2021-02-22 01:50:10,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:50:10,523 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:50:10,540 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_10x0-1.c[481,494] [2021-02-22 01:50:10,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:50:10,557 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:50:10,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:50:10 WrapperNode [2021-02-22 01:50:10,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:50:10,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:50:10,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:50:10,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:50:10,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:50:10" (1/1) ... [2021-02-22 01:50:10,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:50:10" (1/1) ... [2021-02-22 01:50:10,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:50:10" (1/1) ... [2021-02-22 01:50:10,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:50:10" (1/1) ... [2021-02-22 01:50:10,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:50:10" (1/1) ... [2021-02-22 01:50:10,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:50:10" (1/1) ... [2021-02-22 01:50:10,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:50:10" (1/1) ... [2021-02-22 01:50:10,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:50:10,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:50:10,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:50:10,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:50:10,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:50:10" (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 [2021-02-22 01:50:10,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:50:10,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:50:10,740 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:50:10,740 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-02-22 01:50:10,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:50:10,740 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:50:10,741 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:50:10,741 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:50:10,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:50:10,741 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-02-22 01:50:10,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:50:10,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:50:10,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:50:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:50:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:50:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:50:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:50:11,137 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:50:11,137 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 01:50:11,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:50:11 BoogieIcfgContainer [2021-02-22 01:50:11,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:50:11,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:50:11,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:50:11,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:50:11,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:50:10" (1/3) ... [2021-02-22 01:50:11,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762d81d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:50:11, skipping insertion in model container [2021-02-22 01:50:11,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:50:10" (2/3) ... [2021-02-22 01:50:11,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762d81d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:50:11, skipping insertion in model container [2021-02-22 01:50:11,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:50:11" (3/3) ... [2021-02-22 01:50:11,150 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_10x0-1.c [2021-02-22 01:50:11,159 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:50:11,164 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:50:11,186 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:50:11,212 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:50:11,212 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:50:11,212 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:50:11,212 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:50:11,212 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:50:11,213 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:50:11,213 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:50:11,213 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:50:11,253 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2021-02-22 01:50:11,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-22 01:50:11,266 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:50:11,267 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] [2021-02-22 01:50:11,268 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:50:11,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:50:11,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1485133070, now seen corresponding path program 1 times [2021-02-22 01:50:11,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:50:11,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461559127] [2021-02-22 01:50:11,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:50:11,363 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:50:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:11,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:11,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:11,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:11,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:11,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:11,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:11,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:50:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:11,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:11,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:11,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:50:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:11,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:11,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:11,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:11,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:11,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:11,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:11,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:50:11,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461559127] [2021-02-22 01:50:11,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:50:11,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 01:50:11,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504259534] [2021-02-22 01:50:11,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 01:50:11,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:50:11,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 01:50:11,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-22 01:50:11,743 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 7 states. [2021-02-22 01:50:12,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:50:12,041 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2021-02-22 01:50:12,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-22 01:50:12,043 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2021-02-22 01:50:12,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:50:12,054 INFO L225 Difference]: With dead ends: 48 [2021-02-22 01:50:12,054 INFO L226 Difference]: Without dead ends: 33 [2021-02-22 01:50:12,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-22 01:50:12,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-02-22 01:50:12,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-02-22 01:50:12,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-02-22 01:50:12,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2021-02-22 01:50:12,157 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 26 [2021-02-22 01:50:12,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:50:12,157 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2021-02-22 01:50:12,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 01:50:12,158 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-02-22 01:50:12,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-02-22 01:50:12,160 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:50:12,160 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-22 01:50:12,160 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:50:12,161 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:50:12,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:50:12,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1822905144, now seen corresponding path program 1 times [2021-02-22 01:50:12,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:50:12,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976220351] [2021-02-22 01:50:12,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:50:12,175 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:50:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:12,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:12,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:12,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:12,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:50:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:12,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:12,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:50:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:12,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:12,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:12,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:12,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:12,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:12,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:12,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-22 01:50:12,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976220351] [2021-02-22 01:50:12,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:50:12,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 01:50:12,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600804605] [2021-02-22 01:50:12,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 01:50:12,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:50:12,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 01:50:12,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-22 01:50:12,491 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 8 states. [2021-02-22 01:50:12,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:50:12,813 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2021-02-22 01:50:12,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-22 01:50:12,814 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2021-02-22 01:50:12,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:50:12,816 INFO L225 Difference]: With dead ends: 44 [2021-02-22 01:50:12,816 INFO L226 Difference]: Without dead ends: 38 [2021-02-22 01:50:12,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-22 01:50:12,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-02-22 01:50:12,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-02-22 01:50:12,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-02-22 01:50:12,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2021-02-22 01:50:12,832 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 35 [2021-02-22 01:50:12,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:50:12,833 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2021-02-22 01:50:12,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 01:50:12,833 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2021-02-22 01:50:12,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-02-22 01:50:12,835 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:50:12,835 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-02-22 01:50:12,835 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:50:12,836 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:50:12,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:50:12,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1004193542, now seen corresponding path program 2 times [2021-02-22 01:50:12,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:50:12,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765215070] [2021-02-22 01:50:12,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:50:12,840 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:50:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:12,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:12,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:12,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:12,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:50:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:12,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:12,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:50:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:12,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:12,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:12,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:12,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:12,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:12,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:13,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:13,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:13,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:13,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:13,063 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-02-22 01:50:13,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765215070] [2021-02-22 01:50:13,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:50:13,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 01:50:13,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356644821] [2021-02-22 01:50:13,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 01:50:13,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:50:13,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 01:50:13,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-02-22 01:50:13,066 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 9 states. [2021-02-22 01:50:13,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:50:13,424 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2021-02-22 01:50:13,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-22 01:50:13,425 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2021-02-22 01:50:13,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:50:13,426 INFO L225 Difference]: With dead ends: 49 [2021-02-22 01:50:13,427 INFO L226 Difference]: Without dead ends: 43 [2021-02-22 01:50:13,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-02-22 01:50:13,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-02-22 01:50:13,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-02-22 01:50:13,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2021-02-22 01:50:13,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-02-22 01:50:13,442 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 44 [2021-02-22 01:50:13,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:50:13,443 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-02-22 01:50:13,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 01:50:13,443 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-02-22 01:50:13,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-22 01:50:13,445 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:50:13,445 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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] [2021-02-22 01:50:13,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 01:50:13,446 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:50:13,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:50:13,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1655724848, now seen corresponding path program 3 times [2021-02-22 01:50:13,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:50:13,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521825832] [2021-02-22 01:50:13,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:50:13,449 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:50:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:13,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:13,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:13,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:13,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:50:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:13,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:13,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:50:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:13,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:13,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:13,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:13,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:13,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:13,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:13,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:13,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:13,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:13,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:13,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:13,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:13,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:13,676 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-02-22 01:50:13,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521825832] [2021-02-22 01:50:13,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:50:13,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 01:50:13,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687361651] [2021-02-22 01:50:13,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 01:50:13,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:50:13,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 01:50:13,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-22 01:50:13,679 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 10 states. [2021-02-22 01:50:14,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:50:14,032 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2021-02-22 01:50:14,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-22 01:50:14,032 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2021-02-22 01:50:14,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:50:14,034 INFO L225 Difference]: With dead ends: 54 [2021-02-22 01:50:14,034 INFO L226 Difference]: Without dead ends: 48 [2021-02-22 01:50:14,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-02-22 01:50:14,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-02-22 01:50:14,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-02-22 01:50:14,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-02-22 01:50:14,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2021-02-22 01:50:14,050 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 53 [2021-02-22 01:50:14,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:50:14,059 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2021-02-22 01:50:14,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 01:50:14,060 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2021-02-22 01:50:14,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-22 01:50:14,062 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:50:14,062 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:50:14,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 01:50:14,062 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:50:14,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:50:14,063 INFO L82 PathProgramCache]: Analyzing trace with hash 54098690, now seen corresponding path program 4 times [2021-02-22 01:50:14,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:50:14,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816438151] [2021-02-22 01:50:14,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:50:14,066 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:50:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:14,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:14,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:14,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:50:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:14,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:14,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:50:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:14,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:14,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:14,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:14,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:14,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:14,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,292 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-02-22 01:50:14,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816438151] [2021-02-22 01:50:14,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:50:14,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-22 01:50:14,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932043087] [2021-02-22 01:50:14,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-22 01:50:14,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:50:14,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-22 01:50:14,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-02-22 01:50:14,295 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 11 states. [2021-02-22 01:50:14,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:50:14,720 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2021-02-22 01:50:14,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-22 01:50:14,721 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2021-02-22 01:50:14,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:50:14,723 INFO L225 Difference]: With dead ends: 59 [2021-02-22 01:50:14,723 INFO L226 Difference]: Without dead ends: 53 [2021-02-22 01:50:14,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-02-22 01:50:14,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-02-22 01:50:14,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-02-22 01:50:14,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-02-22 01:50:14,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2021-02-22 01:50:14,740 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 62 [2021-02-22 01:50:14,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:50:14,740 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2021-02-22 01:50:14,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-22 01:50:14,741 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2021-02-22 01:50:14,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-02-22 01:50:14,742 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:50:14,742 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:50:14,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 01:50:14,743 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:50:14,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:50:14,744 INFO L82 PathProgramCache]: Analyzing trace with hash -406982872, now seen corresponding path program 5 times [2021-02-22 01:50:14,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:50:14,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478783723] [2021-02-22 01:50:14,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:50:14,746 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:50:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:14,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:14,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:14,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:50:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:14,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:14,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:50:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:14,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:14,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:14,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:14,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:14,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:14,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:15,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:15,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:15,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,078 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-02-22 01:50:15,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478783723] [2021-02-22 01:50:15,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:50:15,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-22 01:50:15,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357862759] [2021-02-22 01:50:15,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-22 01:50:15,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:50:15,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-22 01:50:15,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-02-22 01:50:15,082 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 12 states. [2021-02-22 01:50:15,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:50:15,555 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2021-02-22 01:50:15,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-22 01:50:15,556 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2021-02-22 01:50:15,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:50:15,557 INFO L225 Difference]: With dead ends: 64 [2021-02-22 01:50:15,558 INFO L226 Difference]: Without dead ends: 58 [2021-02-22 01:50:15,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-02-22 01:50:15,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-02-22 01:50:15,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-02-22 01:50:15,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2021-02-22 01:50:15,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2021-02-22 01:50:15,576 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 71 [2021-02-22 01:50:15,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:50:15,577 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2021-02-22 01:50:15,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-22 01:50:15,577 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2021-02-22 01:50:15,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-02-22 01:50:15,578 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:50:15,579 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 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] [2021-02-22 01:50:15,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 01:50:15,579 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:50:15,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:50:15,580 INFO L82 PathProgramCache]: Analyzing trace with hash 507179274, now seen corresponding path program 6 times [2021-02-22 01:50:15,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:50:15,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985274776] [2021-02-22 01:50:15,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:50:15,583 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:50:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:15,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:15,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:15,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:50:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:15,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:15,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:50:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:15,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:15,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:15,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:15,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:15,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:15,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:15,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:15,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:15,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-02-22 01:50:15,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [985274776] [2021-02-22 01:50:15,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:50:15,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 01:50:15,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241868890] [2021-02-22 01:50:15,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 01:50:15,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:50:15,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 01:50:15,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-02-22 01:50:15,871 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 13 states. [2021-02-22 01:50:16,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:50:16,339 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2021-02-22 01:50:16,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 01:50:16,340 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 80 [2021-02-22 01:50:16,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:50:16,344 INFO L225 Difference]: With dead ends: 69 [2021-02-22 01:50:16,345 INFO L226 Difference]: Without dead ends: 63 [2021-02-22 01:50:16,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2021-02-22 01:50:16,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-02-22 01:50:16,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-02-22 01:50:16,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-02-22 01:50:16,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2021-02-22 01:50:16,380 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2021-02-22 01:50:16,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:50:16,380 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2021-02-22 01:50:16,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 01:50:16,381 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2021-02-22 01:50:16,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-02-22 01:50:16,382 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:50:16,383 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 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] [2021-02-22 01:50:16,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 01:50:16,383 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:50:16,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:50:16,390 INFO L82 PathProgramCache]: Analyzing trace with hash -326332640, now seen corresponding path program 7 times [2021-02-22 01:50:16,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:50:16,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569649530] [2021-02-22 01:50:16,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:50:16,393 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:50:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:16,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:16,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:16,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:50:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:16,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:16,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:50:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:16,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:16,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:16,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:16,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:16,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:16,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:16,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:16,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:16,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:16,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:16,766 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-02-22 01:50:16,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569649530] [2021-02-22 01:50:16,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:50:16,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-22 01:50:16,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897606009] [2021-02-22 01:50:16,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-22 01:50:16,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:50:16,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-22 01:50:16,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-02-22 01:50:16,769 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 14 states. [2021-02-22 01:50:17,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:50:17,293 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2021-02-22 01:50:17,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-22 01:50:17,293 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 89 [2021-02-22 01:50:17,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:50:17,301 INFO L225 Difference]: With dead ends: 74 [2021-02-22 01:50:17,301 INFO L226 Difference]: Without dead ends: 68 [2021-02-22 01:50:17,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2021-02-22 01:50:17,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-02-22 01:50:17,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-02-22 01:50:17,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-02-22 01:50:17,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2021-02-22 01:50:17,338 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 89 [2021-02-22 01:50:17,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:50:17,339 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2021-02-22 01:50:17,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-22 01:50:17,339 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2021-02-22 01:50:17,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-02-22 01:50:17,343 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:50:17,344 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 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] [2021-02-22 01:50:17,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-22 01:50:17,348 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:50:17,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:50:17,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1949113106, now seen corresponding path program 8 times [2021-02-22 01:50:17,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:50:17,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552186745] [2021-02-22 01:50:17,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:50:17,352 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:50:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:17,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:17,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:17,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:50:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:17,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:17,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:50:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:17,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:17,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:17,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:17,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:17,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:17,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:17,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:17,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:17,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:17,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:17,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:17,814 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-02-22 01:50:17,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552186745] [2021-02-22 01:50:17,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:50:17,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-22 01:50:17,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754833309] [2021-02-22 01:50:17,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-22 01:50:17,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:50:17,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-22 01:50:17,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-02-22 01:50:17,816 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 15 states. [2021-02-22 01:50:18,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:50:18,386 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2021-02-22 01:50:18,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-22 01:50:18,386 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 98 [2021-02-22 01:50:18,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:50:18,388 INFO L225 Difference]: With dead ends: 79 [2021-02-22 01:50:18,388 INFO L226 Difference]: Without dead ends: 73 [2021-02-22 01:50:18,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=208, Invalid=442, Unknown=0, NotChecked=0, Total=650 [2021-02-22 01:50:18,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-02-22 01:50:18,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-02-22 01:50:18,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2021-02-22 01:50:18,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2021-02-22 01:50:18,409 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 98 [2021-02-22 01:50:18,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:50:18,409 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2021-02-22 01:50:18,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-22 01:50:18,410 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2021-02-22 01:50:18,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-02-22 01:50:18,411 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:50:18,411 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 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] [2021-02-22 01:50:18,411 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 01:50:18,411 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:50:18,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:50:18,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1213774616, now seen corresponding path program 9 times [2021-02-22 01:50:18,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:50:18,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317141790] [2021-02-22 01:50:18,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:50:18,415 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:50:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:18,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:18,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:18,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:50:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:18,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:18,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:50:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:18,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:18,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:18,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:18,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:18,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:18,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:18,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:18,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:18,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:18,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:18,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:18,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:18,850 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-02-22 01:50:18,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317141790] [2021-02-22 01:50:18,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:50:18,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-22 01:50:18,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586579872] [2021-02-22 01:50:18,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-22 01:50:18,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:50:18,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-22 01:50:18,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2021-02-22 01:50:18,853 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 16 states. [2021-02-22 01:50:19,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:50:19,566 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2021-02-22 01:50:19,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-22 01:50:19,567 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 107 [2021-02-22 01:50:19,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:50:19,568 INFO L225 Difference]: With dead ends: 84 [2021-02-22 01:50:19,569 INFO L226 Difference]: Without dead ends: 78 [2021-02-22 01:50:19,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=244, Invalid=512, Unknown=0, NotChecked=0, Total=756 [2021-02-22 01:50:19,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-02-22 01:50:19,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-02-22 01:50:19,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-02-22 01:50:19,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2021-02-22 01:50:19,585 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 107 [2021-02-22 01:50:19,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:50:19,585 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2021-02-22 01:50:19,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-22 01:50:19,585 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2021-02-22 01:50:19,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-02-22 01:50:19,587 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:50:19,587 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 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] [2021-02-22 01:50:19,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-22 01:50:19,587 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:50:19,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:50:19,588 INFO L82 PathProgramCache]: Analyzing trace with hash -241993446, now seen corresponding path program 10 times [2021-02-22 01:50:19,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:50:19,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92868938] [2021-02-22 01:50:19,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:50:19,591 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:50:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:19,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:19,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:19,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:19,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:50:19,667 WARN L141 QuantifierPusher]: treesize reduction 7, result has 76.7 percent of original size [2021-02-22 01:50:19,669 WARN L147 QuantifierPusher]: treesize reduction 7, result has 76.7 percent of original size 23 [2021-02-22 01:50:19,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:19,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:50:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:19,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:50:19,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-22 01:50:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:19,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:19,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:19,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:19,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:19,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:19,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:19,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:19,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:19,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:19,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:19,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:19,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:19,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:19,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:20,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:20,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:20,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:20,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:20,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:20,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:20,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:20,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:20,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:20,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:20,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:20,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:20,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:20,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:20,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:20,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:20,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:20,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:20,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:20,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:20,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:50:20,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 01:50:20,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:50:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:50:20,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:50:20,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:50:20,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:50:20,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:50:20,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-22 01:50:20,946 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-02-22 01:50:20,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92868938] [2021-02-22 01:50:20,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:50:20,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2021-02-22 01:50:20,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371861177] [2021-02-22 01:50:20,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-02-22 01:50:20,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:50:20,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-02-22 01:50:20,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=835, Unknown=0, NotChecked=0, Total=992 [2021-02-22 01:50:20,949 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 32 states. [2021-02-22 01:50:22,798 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-02-22 01:50:25,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:50:25,476 INFO L93 Difference]: Finished difference Result 78 states and 79 transitions. [2021-02-22 01:50:25,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-22 01:50:25,476 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 116 [2021-02-22 01:50:25,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:50:25,477 INFO L225 Difference]: With dead ends: 78 [2021-02-22 01:50:25,477 INFO L226 Difference]: Without dead ends: 0 [2021-02-22 01:50:25,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 722 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=965, Invalid=4147, Unknown=0, NotChecked=0, Total=5112 [2021-02-22 01:50:25,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-22 01:50:25,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-22 01:50:25,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-22 01:50:25,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-22 01:50:25,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 116 [2021-02-22 01:50:25,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:50:25,482 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-22 01:50:25,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2021-02-22 01:50:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-22 01:50:25,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-22 01:50:25,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-22 01:50:25,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-22 01:50:26,421 WARN L202 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2021-02-22 01:50:27,078 WARN L202 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-02-22 01:50:27,761 WARN L202 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-02-22 01:50:28,292 WARN L202 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2021-02-22 01:50:28,855 WARN L202 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2021-02-22 01:50:29,010 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-22 01:50:29,010 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-22 01:50:29,010 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-22 01:50:29,010 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-22 01:50:29,010 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-22 01:50:29,010 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:50:29,010 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-22 01:50:29,010 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-22 01:50:29,010 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-22 01:50:29,011 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-22 01:50:29,011 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-22 01:50:29,011 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-22 01:50:29,011 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:50:29,012 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:50:29,012 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:50:29,012 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-22 01:50:29,012 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-22 01:50:29,013 INFO L185 CegarLoopUtils]: At program point sumEXIT(lines 5 11) the Hoare annotation is: (let ((.cse2 (+ |sum_#in~n| |sum_#in~m|))) (let ((.cse0 (= sum_~n |sum_#in~n|)) (.cse1 (= sum_~m |sum_#in~m|)) (.cse3 (<= |sum_#res| .cse2))) (or (and .cse0 (<= |sum_#res| |sum_#in~m|) .cse1 (<= .cse2 |sum_#res|)) (and .cse0 .cse1 (<= |sum_#in~n| 8) .cse3 (<= (+ |sum_#in~m| 8) |sum_#res|)) (and .cse0 (<= (+ |sum_#in~m| 6) |sum_#res|) .cse1 .cse3 (<= |sum_#in~n| 6)) (and .cse0 .cse1 .cse3 (<= (+ |sum_#in~m| 9) |sum_#res|) (<= |sum_#in~n| 9)) (and .cse0 .cse1 (<= (+ |sum_#in~m| 7) |sum_#res|) (<= |sum_#in~n| 7) .cse3) (and .cse0 (<= (+ |sum_#in~m| 1) |sum_#res|) .cse1 (<= |sum_#in~n| 1) .cse3) (and .cse0 (<= (+ |sum_#in~m| 10) |sum_#res|) .cse1 .cse3) (and .cse0 .cse1 (<= |sum_#in~n| 3) .cse3 (<= (+ |sum_#in~m| 3) |sum_#res|)) (and .cse0 (<= (+ |sum_#in~m| 2) |sum_#res|) (<= |sum_#in~n| 2) .cse1 .cse3) (and .cse0 (<= |sum_#in~n| 4) .cse1 .cse3 (<= (+ |sum_#in~m| 4) |sum_#res|)) (and .cse0 (<= |sum_#in~n| 5) .cse1 .cse3 (<= (+ |sum_#in~m| 5) |sum_#res|))))) [2021-02-22 01:50:29,013 INFO L185 CegarLoopUtils]: At program point L9(line 9) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (<= 1 sum_~n) (= sum_~m |sum_#in~m|)) [2021-02-22 01:50:29,013 INFO L185 CegarLoopUtils]: At program point L9-1(line 9) the Hoare annotation is: (and (let ((.cse0 (= sum_~n |sum_#in~n|))) (or (and .cse0 (<= |sum_#in~n| 9)) (and .cse0 (<= (+ |sum_#in~m| 10) |sum_#t~ret7|)))) (let ((.cse1 (= sum_~m |sum_#in~m|)) (.cse2 (<= |sum_#t~ret7| (+ |sum_#in~n| |sum_#in~m|)))) (or (and (<= |sum_#in~n| 5) .cse1 (<= (+ |sum_#in~m| 5) |sum_#t~ret7|) .cse2) (and .cse1 (<= |sum_#in~n| 7) (<= (+ |sum_#in~m| 7) |sum_#t~ret7|) .cse2) (and .cse1 (<= (+ |sum_#in~m| 9) |sum_#t~ret7|) .cse2) (and (<= (+ |sum_#in~m| 4) |sum_#t~ret7|) (<= |sum_#in~n| 4) .cse1 .cse2) (and .cse1 (<= |sum_#in~n| 8) (<= (+ |sum_#in~m| 8) |sum_#t~ret7|) .cse2) (and (<= (+ |sum_#in~m| 3) |sum_#t~ret7|) .cse1 (<= |sum_#in~n| 3) .cse2) (and (<= (+ |sum_#in~m| 1) |sum_#t~ret7|) .cse1 (<= |sum_#in~n| 1) .cse2) (and (<= |sum_#in~n| 2) .cse1 .cse2 (<= (+ |sum_#in~m| 2) |sum_#t~ret7|)) (and .cse1 (<= |sum_#in~n| 6) (<= (+ |sum_#in~m| 6) |sum_#t~ret7|) .cse2)))) [2021-02-22 01:50:29,013 INFO L185 CegarLoopUtils]: At program point L7(line 7) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|) (<= sum_~n 0)) [2021-02-22 01:50:29,014 INFO L185 CegarLoopUtils]: At program point L9-2(line 9) the Hoare annotation is: (and (let ((.cse0 (= sum_~n |sum_#in~n|))) (or (and .cse0 (<= |sum_#in~n| 9)) (and .cse0 (<= (+ |sum_#in~m| 10) |sum_#t~ret7|)))) (let ((.cse1 (= sum_~m |sum_#in~m|)) (.cse2 (<= |sum_#t~ret7| (+ |sum_#in~n| |sum_#in~m|)))) (or (and (<= |sum_#in~n| 5) .cse1 (<= (+ |sum_#in~m| 5) |sum_#t~ret7|) .cse2) (and .cse1 (<= |sum_#in~n| 7) (<= (+ |sum_#in~m| 7) |sum_#t~ret7|) .cse2) (and .cse1 (<= (+ |sum_#in~m| 9) |sum_#t~ret7|) .cse2) (and (<= (+ |sum_#in~m| 4) |sum_#t~ret7|) (<= |sum_#in~n| 4) .cse1 .cse2) (and .cse1 (<= |sum_#in~n| 8) (<= (+ |sum_#in~m| 8) |sum_#t~ret7|) .cse2) (and (<= (+ |sum_#in~m| 3) |sum_#t~ret7|) .cse1 (<= |sum_#in~n| 3) .cse2) (and (<= (+ |sum_#in~m| 1) |sum_#t~ret7|) .cse1 (<= |sum_#in~n| 1) .cse2) (and (<= |sum_#in~n| 2) .cse1 .cse2 (<= (+ |sum_#in~m| 2) |sum_#t~ret7|)) (and .cse1 (<= |sum_#in~n| 6) (<= (+ |sum_#in~m| 6) |sum_#t~ret7|) .cse2)))) [2021-02-22 01:50:29,014 INFO L185 CegarLoopUtils]: At program point L6(lines 6 10) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|)) [2021-02-22 01:50:29,014 INFO L185 CegarLoopUtils]: At program point L9-3(line 9) the Hoare annotation is: (let ((.cse14 (+ |sum_#in~n| |sum_#in~m|))) (let ((.cse0 (= sum_~n |sum_#in~n|)) (.cse2 (= sum_~m |sum_#in~m|)) (.cse3 (<= |sum_#res| .cse14)) (.cse4 (<= |sum_#t~ret7| .cse14))) (or (let ((.cse1 (+ |sum_#in~m| 1))) (and .cse0 (<= .cse1 |sum_#t~ret7|) (<= .cse1 |sum_#res|) .cse2 (<= |sum_#in~n| 1) .cse3 .cse4)) (let ((.cse5 (+ |sum_#in~m| 7))) (and .cse0 .cse2 (<= .cse5 |sum_#res|) (<= |sum_#in~n| 7) .cse3 (<= .cse5 |sum_#t~ret7|) .cse4)) (let ((.cse6 (+ |sum_#in~m| 10))) (and .cse0 (<= .cse6 |sum_#res|) .cse2 .cse3 (<= .cse6 |sum_#t~ret7|) .cse4)) (let ((.cse7 (+ |sum_#in~m| 8))) (and .cse0 .cse2 (<= |sum_#in~n| 8) .cse3 (<= .cse7 |sum_#res|) (<= .cse7 |sum_#t~ret7|) .cse4)) (let ((.cse8 (+ |sum_#in~m| 4))) (and .cse0 (<= .cse8 |sum_#t~ret7|) (<= |sum_#in~n| 4) .cse2 .cse3 (<= .cse8 |sum_#res|) .cse4)) (let ((.cse9 (+ |sum_#in~m| 6))) (and .cse0 (<= .cse9 |sum_#res|) .cse2 .cse3 (<= |sum_#in~n| 6) (<= .cse9 |sum_#t~ret7|) .cse4)) (let ((.cse10 (+ |sum_#in~m| 5))) (and .cse0 (<= |sum_#in~n| 5) .cse2 .cse3 (<= .cse10 |sum_#t~ret7|) (<= .cse10 |sum_#res|) .cse4)) (let ((.cse11 (+ |sum_#in~m| 3))) (and .cse0 (<= .cse11 |sum_#t~ret7|) .cse2 (<= |sum_#in~n| 3) .cse3 (<= .cse11 |sum_#res|) .cse4)) (let ((.cse12 (+ |sum_#in~m| 2))) (and .cse0 (<= .cse12 |sum_#res|) (<= |sum_#in~n| 2) .cse2 .cse3 .cse4 (<= .cse12 |sum_#t~ret7|))) (let ((.cse13 (+ |sum_#in~m| 9))) (and .cse0 .cse2 .cse3 (<= .cse13 |sum_#res|) (<= .cse13 |sum_#t~ret7|) (<= |sum_#in~n| 9) .cse4))))) [2021-02-22 01:50:29,014 INFO L185 CegarLoopUtils]: At program point L5(lines 5 11) the Hoare annotation is: (= sum_~n |sum_#in~n|) [2021-02-22 01:50:29,015 INFO L185 CegarLoopUtils]: At program point sumFINAL(lines 5 11) the Hoare annotation is: (let ((.cse2 (+ |sum_#in~n| |sum_#in~m|))) (let ((.cse0 (= sum_~n |sum_#in~n|)) (.cse1 (= sum_~m |sum_#in~m|)) (.cse3 (<= |sum_#res| .cse2))) (or (and .cse0 (<= |sum_#res| |sum_#in~m|) .cse1 (<= .cse2 |sum_#res|)) (and .cse0 .cse1 (<= |sum_#in~n| 8) .cse3 (<= (+ |sum_#in~m| 8) |sum_#res|)) (and .cse0 (<= (+ |sum_#in~m| 6) |sum_#res|) .cse1 .cse3 (<= |sum_#in~n| 6)) (and .cse0 .cse1 .cse3 (<= (+ |sum_#in~m| 9) |sum_#res|) (<= |sum_#in~n| 9)) (and .cse0 .cse1 (<= (+ |sum_#in~m| 7) |sum_#res|) (<= |sum_#in~n| 7) .cse3) (and .cse0 (<= (+ |sum_#in~m| 1) |sum_#res|) .cse1 (<= |sum_#in~n| 1) .cse3) (and .cse0 (<= (+ |sum_#in~m| 10) |sum_#res|) .cse1 .cse3) (and .cse0 .cse1 (<= |sum_#in~n| 3) .cse3 (<= (+ |sum_#in~m| 3) |sum_#res|)) (and .cse0 (<= (+ |sum_#in~m| 2) |sum_#res|) (<= |sum_#in~n| 2) .cse1 .cse3) (and .cse0 (<= |sum_#in~n| 4) .cse1 .cse3 (<= (+ |sum_#in~m| 4) |sum_#res|)) (and .cse0 (<= |sum_#in~n| 5) .cse1 .cse3 (<= (+ |sum_#in~m| 5) |sum_#res|))))) [2021-02-22 01:50:29,015 INFO L192 CegarLoopUtils]: At program point sumENTRY(lines 5 11) the Hoare annotation is: true [2021-02-22 01:50:29,015 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) the Hoare annotation is: false [2021-02-22 01:50:29,015 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 13 20) the Hoare annotation is: true [2021-02-22 01:50:29,015 INFO L185 CegarLoopUtils]: At program point mainEXIT(lines 13 20) the Hoare annotation is: (<= 10 main_~a~0) [2021-02-22 01:50:29,015 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: false [2021-02-22 01:50:29,015 INFO L185 CegarLoopUtils]: At program point L17(lines 17 19) the Hoare annotation is: (and (<= main_~a~0 10) (<= main_~a~0 main_~result~0) (<= 10 main_~a~0) (<= main_~result~0 main_~a~0) (= main_~b~0 0)) [2021-02-22 01:50:29,015 INFO L185 CegarLoopUtils]: At program point L18-1(line 18) the Hoare annotation is: false [2021-02-22 01:50:29,016 INFO L185 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (and (<= main_~a~0 10) (<= 10 main_~a~0) (= main_~b~0 0)) [2021-02-22 01:50:29,016 INFO L185 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: (and (<= main_~a~0 10) (<= 10 main_~a~0)) [2021-02-22 01:50:29,016 INFO L185 CegarLoopUtils]: At program point L16-1(line 16) the Hoare annotation is: (and (<= main_~a~0 10) (<= |main_#t~ret8| main_~a~0) (<= 10 main_~a~0) (<= main_~a~0 |main_#t~ret8|) (= main_~b~0 0)) [2021-02-22 01:50:29,016 INFO L185 CegarLoopUtils]: At program point L17-2(lines 13 20) the Hoare annotation is: (<= 10 main_~a~0) [2021-02-22 01:50:29,016 INFO L185 CegarLoopUtils]: At program point L16-2(line 16) the Hoare annotation is: (and (<= main_~a~0 10) (<= |main_#t~ret8| main_~a~0) (<= 10 main_~a~0) (<= main_~a~0 |main_#t~ret8|) (= main_~b~0 0)) [2021-02-22 01:50:29,016 INFO L185 CegarLoopUtils]: At program point L16-3(line 16) the Hoare annotation is: (and (<= main_~a~0 10) (<= |main_#t~ret8| main_~a~0) (<= main_~a~0 main_~result~0) (<= 10 main_~a~0) (<= main_~a~0 |main_#t~ret8|) (<= main_~result~0 main_~a~0) (= main_~b~0 0)) [2021-02-22 01:50:29,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:50:29 BoogieIcfgContainer [2021-02-22 01:50:29,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:50:29,048 INFO L168 Benchmark]: Toolchain (without parser) took 18795.99 ms. Allocated memory was 154.1 MB in the beginning and 327.2 MB in the end (delta: 173.0 MB). Free memory was 130.7 MB in the beginning and 231.6 MB in the end (delta: -100.9 MB). Peak memory consumption was 190.9 MB. Max. memory is 8.0 GB. [2021-02-22 01:50:29,049 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 154.1 MB. Free memory was 126.7 MB in the beginning and 126.3 MB in the end (delta: 419.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:50:29,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.95 ms. Allocated memory is still 154.1 MB. Free memory was 129.6 MB in the beginning and 120.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-22 01:50:29,050 INFO L168 Benchmark]: Boogie Preprocessor took 53.65 ms. Allocated memory is still 154.1 MB. Free memory was 120.4 MB in the beginning and 119.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:50:29,050 INFO L168 Benchmark]: RCFGBuilder took 525.58 ms. Allocated memory is still 154.1 MB. Free memory was 119.2 MB in the beginning and 105.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-22 01:50:29,050 INFO L168 Benchmark]: TraceAbstraction took 17905.03 ms. Allocated memory was 154.1 MB in the beginning and 327.2 MB in the end (delta: 173.0 MB). Free memory was 105.1 MB in the beginning and 231.6 MB in the end (delta: -126.5 MB). Peak memory consumption was 165.8 MB. Max. memory is 8.0 GB. [2021-02-22 01:50:29,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 154.1 MB. Free memory was 126.7 MB in the beginning and 126.3 MB in the end (delta: 419.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 284.95 ms. Allocated memory is still 154.1 MB. Free memory was 129.6 MB in the beginning and 120.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.65 ms. Allocated memory is still 154.1 MB. Free memory was 120.4 MB in the beginning and 119.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 525.58 ms. Allocated memory is still 154.1 MB. Free memory was 119.2 MB in the beginning and 105.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17905.03 ms. Allocated memory was 154.1 MB in the beginning and 327.2 MB in the end (delta: 173.0 MB). Free memory was 105.1 MB in the beginning and 231.6 MB in the end (delta: -126.5 MB). Peak memory consumption was 165.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 - ProcedureContractResult [Line: 5]: Procedure Contract for sum Derived contract for procedure sum: ((((((((((((n == \old(n) && \result <= \old(m)) && m == \old(m)) && \old(n) + \old(m) <= \result) || ((((n == \old(n) && m == \old(m)) && \old(n) <= 8) && \result <= \old(n) + \old(m)) && \old(m) + 8 <= \result)) || ((((n == \old(n) && \old(m) + 6 <= \result) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(n) <= 6)) || ((((n == \old(n) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(m) + 9 <= \result) && \old(n) <= 9)) || ((((n == \old(n) && m == \old(m)) && \old(m) + 7 <= \result) && \old(n) <= 7) && \result <= \old(n) + \old(m))) || ((((n == \old(n) && \old(m) + 1 <= \result) && m == \old(m)) && \old(n) <= 1) && \result <= \old(n) + \old(m))) || (((n == \old(n) && \old(m) + 10 <= \result) && m == \old(m)) && \result <= \old(n) + \old(m))) || ((((n == \old(n) && m == \old(m)) && \old(n) <= 3) && \result <= \old(n) + \old(m)) && \old(m) + 3 <= \result)) || ((((n == \old(n) && \old(m) + 2 <= \result) && \old(n) <= 2) && m == \old(m)) && \result <= \old(n) + \old(m))) || ((((n == \old(n) && \old(n) <= 4) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(m) + 4 <= \result)) || ((((n == \old(n) && \old(n) <= 5) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(m) + 5 <= \result) - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: 10 <= a - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.2s, OverallIterations: 11, TraceHistogramMax: 11, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 303 SDtfs, 736 SDslu, 773 SDs, 0 SdLazy, 1797 SolverSat, 216 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 404 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1227 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 46 PreInvPairs, 196 NumberOfFragments, 1234 HoareAnnotationTreeSize, 46 FomulaSimplifications, 2945 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 36 FomulaSimplificationsInter, 4518 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...