/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/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 20:55:53,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 20:55:53,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 20:55:53,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-21 20:55:53,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 20:55:53,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 20:55:53,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 20:55:53,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 20:55:53,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 20:55:53,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 20:55:53,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 20:55:53,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 20:55:53,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 20:55:53,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 20:55:53,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 20:55:53,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 20:55:53,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 20:55:53,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 20:55:53,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 20:55:53,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 20:55:53,710 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 20:55:53,722 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 20:55:53,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 20:55:53,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 20:55:53,725 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 20:55:53,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 20:55:53,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 20:55:53,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 20:55:53,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 20:55:53,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 20:55:53,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 20:55:53,727 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 20:55:53,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 20:55:53,727 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 20:55:53,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 20:55:53,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 20:55:53,728 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 20:55:53,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 20:55:53,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 20:55:53,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 20:55:53,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 20:55:53,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 20:55:53,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 20:55:53,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 20:55:54,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 20:55:54,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 20:55:54,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 20:55:54,118 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 20:55:54,119 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 20:55:54,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label46.c [2021-02-21 20:55:54,209 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c6ab30d/982aa6aeb22e4da8b282c641cf1b4052/FLAG8cd4c3abc [2021-02-21 20:55:54,952 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 20:55:54,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label46.c [2021-02-21 20:55:54,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c6ab30d/982aa6aeb22e4da8b282c641cf1b4052/FLAG8cd4c3abc [2021-02-21 20:55:55,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c6ab30d/982aa6aeb22e4da8b282c641cf1b4052 [2021-02-21 20:55:55,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 20:55:55,224 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 20:55:55,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 20:55:55,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 20:55:55,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 20:55:55,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:55:55" (1/1) ... [2021-02-21 20:55:55,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae5f7bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:55:55, skipping insertion in model container [2021-02-21 20:55:55,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:55:55" (1/1) ... [2021-02-21 20:55:55,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 20:55:55,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 20:55:55,712 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label46.c[18150,18163] [2021-02-21 20:55:55,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:55:55,774 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 20:55:55,902 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label46.c[18150,18163] [2021-02-21 20:55:55,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:55:55,979 INFO L208 MainTranslator]: Completed translation [2021-02-21 20:55:55,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:55:55 WrapperNode [2021-02-21 20:55:55,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 20:55:55,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 20:55:55,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 20:55:55,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 20:55:56,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:55:55" (1/1) ... [2021-02-21 20:55:56,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:55:55" (1/1) ... [2021-02-21 20:55:56,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:55:55" (1/1) ... [2021-02-21 20:55:56,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:55:55" (1/1) ... [2021-02-21 20:55:56,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:55:55" (1/1) ... [2021-02-21 20:55:56,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:55:55" (1/1) ... [2021-02-21 20:55:56,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:55:55" (1/1) ... [2021-02-21 20:55:56,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 20:55:56,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 20:55:56,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 20:55:56,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 20:55:56,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:55:55" (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 [2021-02-21 20:55:56,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 20:55:56,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 20:55:56,299 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 20:55:56,299 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-21 20:55:56,299 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 20:55:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-21 20:55:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 20:55:56,300 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 20:55:56,300 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 20:55:56,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 20:55:56,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 20:55:56,301 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-21 20:55:56,302 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 20:55:56,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 20:55:56,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 20:55:56,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 20:55:56,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 20:55:56,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 20:55:56,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 20:55:57,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 20:55:57,810 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-21 20:55:57,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:55:57 BoogieIcfgContainer [2021-02-21 20:55:57,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 20:55:57,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 20:55:57,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 20:55:57,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 20:55:57,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 08:55:55" (1/3) ... [2021-02-21 20:55:57,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f12783c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:55:57, skipping insertion in model container [2021-02-21 20:55:57,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:55:55" (2/3) ... [2021-02-21 20:55:57,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f12783c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:55:57, skipping insertion in model container [2021-02-21 20:55:57,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:55:57" (3/3) ... [2021-02-21 20:55:57,823 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label46.c [2021-02-21 20:55:57,830 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 20:55:57,835 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 20:55:57,855 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 20:55:57,880 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 20:55:57,880 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 20:55:57,880 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 20:55:57,880 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 20:55:57,880 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 20:55:57,881 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 20:55:57,881 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 20:55:57,881 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 20:55:57,908 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states. [2021-02-21 20:55:57,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-02-21 20:55:57,941 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:55:57,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:55:57,949 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:55:57,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:55:57,956 INFO L82 PathProgramCache]: Analyzing trace with hash 196230593, now seen corresponding path program 1 times [2021-02-21 20:55:57,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:55:57,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136984333] [2021-02-21 20:55:57,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:55:58,040 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:55:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:55:58,548 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-21 20:55:58,549 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-21 20:55:58,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:55:58,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:55:58,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:55:58,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:55:58,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:55:58,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:55:58,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:55:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:55:58,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:55:58,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:55:58,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:55:58,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:55:58,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:55:58,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136984333] [2021-02-21 20:55:58,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:55:58,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 20:55:58,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497216425] [2021-02-21 20:55:58,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 20:55:58,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:55:58,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 20:55:58,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-21 20:55:58,845 INFO L87 Difference]: Start difference. First operand 536 states. Second operand 5 states. [2021-02-21 20:56:02,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:56:02,747 INFO L93 Difference]: Finished difference Result 1428 states and 2023 transitions. [2021-02-21 20:56:02,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 20:56:02,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2021-02-21 20:56:02,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:56:02,773 INFO L225 Difference]: With dead ends: 1428 [2021-02-21 20:56:02,773 INFO L226 Difference]: Without dead ends: 844 [2021-02-21 20:56:02,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-21 20:56:02,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-02-21 20:56:03,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 780. [2021-02-21 20:56:03,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2021-02-21 20:56:03,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 951 transitions. [2021-02-21 20:56:03,054 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 951 transitions. Word has length 146 [2021-02-21 20:56:03,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:56:03,055 INFO L480 AbstractCegarLoop]: Abstraction has 780 states and 951 transitions. [2021-02-21 20:56:03,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 20:56:03,056 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 951 transitions. [2021-02-21 20:56:03,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-02-21 20:56:03,065 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:56:03,065 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:56:03,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 20:56:03,066 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:56:03,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:56:03,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1039659290, now seen corresponding path program 1 times [2021-02-21 20:56:03,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:56:03,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824737592] [2021-02-21 20:56:03,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:56:03,310 WARN L141 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size [2021-02-21 20:56:03,336 WARN L147 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size 178 [2021-02-21 20:56:03,457 WARN L141 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size [2021-02-21 20:56:03,463 WARN L147 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size 178 [2021-02-21 20:56:03,570 WARN L141 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size [2021-02-21 20:56:03,575 WARN L147 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size 178 [2021-02-21 20:56:03,682 WARN L141 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size [2021-02-21 20:56:03,688 WARN L147 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size 178 [2021-02-21 20:56:03,689 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-21 20:56:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:03,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:03,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:03,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:03,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:03,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:03,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:56:03,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:03,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:03,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:03,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:56:03,971 WARN L141 QuantifierPusher]: treesize reduction 33, result has 21.4 percent of original size [2021-02-21 20:56:03,972 WARN L147 QuantifierPusher]: treesize reduction 33, result has 21.4 percent of original size 9 [2021-02-21 20:56:03,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:03,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 20:56:03,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:03,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:04,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:56:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:04,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:04,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:04,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:56:04,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:04,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:56:04,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-21 20:56:04,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:04,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-02-21 20:56:04,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-02-21 20:56:04,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:04,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-02-21 20:56:04,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-21 20:56:04,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:04,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:04,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-21 20:56:04,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-21 20:56:04,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-21 20:56:04,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-21 20:56:04,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-21 20:56:04,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-21 20:56:04,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-21 20:56:04,552 WARN L141 QuantifierPusher]: treesize reduction 38, result has 43.3 percent of original size [2021-02-21 20:56:04,553 WARN L147 QuantifierPusher]: treesize reduction 38, result has 43.3 percent of original size 29 [2021-02-21 20:56:04,554 WARN L141 QuantifierPusher]: treesize reduction 11, result has 78.8 percent of original size [2021-02-21 20:56:04,555 WARN L147 QuantifierPusher]: treesize reduction 11, result has 78.8 percent of original size 41 [2021-02-21 20:56:04,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-21 20:56:04,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-21 20:56:04,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-21 20:56:04,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-21 20:56:04,718 WARN L141 QuantifierPusher]: treesize reduction 8, result has 75.8 percent of original size [2021-02-21 20:56:04,719 WARN L147 QuantifierPusher]: treesize reduction 8, result has 75.8 percent of original size 25 [2021-02-21 20:56:04,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-21 20:56:04,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:04,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-21 20:56:04,795 WARN L141 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size [2021-02-21 20:56:04,795 WARN L147 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size 1 [2021-02-21 20:56:04,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824737592] [2021-02-21 20:56:04,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:56:04,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-21 20:56:04,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673987112] [2021-02-21 20:56:04,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-21 20:56:04,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:56:04,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-21 20:56:04,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2021-02-21 20:56:04,799 INFO L87 Difference]: Start difference. First operand 780 states and 951 transitions. Second operand 19 states. [2021-02-21 20:56:05,510 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-21 20:56:05,633 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-21 20:56:05,789 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-21 20:56:12,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:56:12,989 INFO L93 Difference]: Finished difference Result 3808 states and 4984 transitions. [2021-02-21 20:56:12,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-02-21 20:56:12,989 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 163 [2021-02-21 20:56:12,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:56:13,017 INFO L225 Difference]: With dead ends: 3808 [2021-02-21 20:56:13,018 INFO L226 Difference]: Without dead ends: 3058 [2021-02-21 20:56:13,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=341, Invalid=919, Unknown=0, NotChecked=0, Total=1260 [2021-02-21 20:56:13,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2021-02-21 20:56:13,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 2575. [2021-02-21 20:56:13,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2575 states. [2021-02-21 20:56:13,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 3368 transitions. [2021-02-21 20:56:13,772 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 3368 transitions. Word has length 163 [2021-02-21 20:56:13,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:56:13,773 INFO L480 AbstractCegarLoop]: Abstraction has 2575 states and 3368 transitions. [2021-02-21 20:56:13,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-21 20:56:13,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 3368 transitions. [2021-02-21 20:56:13,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-02-21 20:56:13,786 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:56:13,787 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:56:13,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 20:56:13,787 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:56:13,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:56:13,788 INFO L82 PathProgramCache]: Analyzing trace with hash 30444125, now seen corresponding path program 1 times [2021-02-21 20:56:13,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:56:13,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820929561] [2021-02-21 20:56:13,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:56:13,931 WARN L141 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size [2021-02-21 20:56:13,935 WARN L147 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size 177 [2021-02-21 20:56:14,033 WARN L141 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size [2021-02-21 20:56:14,037 WARN L147 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size 177 [2021-02-21 20:56:14,140 WARN L141 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size [2021-02-21 20:56:14,144 WARN L147 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size 177 [2021-02-21 20:56:14,236 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.7 percent of original size [2021-02-21 20:56:14,239 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.7 percent of original size 177 [2021-02-21 20:56:14,330 WARN L141 QuantifierPusher]: treesize reduction 153, result has 53.8 percent of original size [2021-02-21 20:56:14,334 WARN L147 QuantifierPusher]: treesize reduction 153, result has 53.8 percent of original size 178 [2021-02-21 20:56:14,452 WARN L141 QuantifierPusher]: treesize reduction 153, result has 53.8 percent of original size [2021-02-21 20:56:14,456 WARN L147 QuantifierPusher]: treesize reduction 153, result has 53.8 percent of original size 178 [2021-02-21 20:56:14,553 WARN L141 QuantifierPusher]: treesize reduction 153, result has 53.8 percent of original size [2021-02-21 20:56:14,556 WARN L147 QuantifierPusher]: treesize reduction 153, result has 53.8 percent of original size 178 [2021-02-21 20:56:14,641 WARN L141 QuantifierPusher]: treesize reduction 153, result has 53.8 percent of original size [2021-02-21 20:56:14,645 WARN L147 QuantifierPusher]: treesize reduction 153, result has 53.8 percent of original size 178 [2021-02-21 20:56:14,645 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-21 20:56:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:14,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:14,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:14,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:14,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:14,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:14,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:14,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:14,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:56:14,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:14,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:14,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:14,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:14,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:14,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:14,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:14,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:14,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:14,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:14,963 WARN L141 QuantifierPusher]: treesize reduction 42, result has 17.6 percent of original size [2021-02-21 20:56:14,964 WARN L147 QuantifierPusher]: treesize reduction 42, result has 17.6 percent of original size 9 [2021-02-21 20:56:14,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:14,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 20:56:14,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:14,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:15,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:56:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:15,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:15,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:15,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:56:15,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:15,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 20:56:15,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:15,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 20:56:15,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:15,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 20:56:15,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:15,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 20:56:15,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:15,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 20:56:15,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:15,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 20:56:15,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-02-21 20:56:15,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:15,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-02-21 20:56:15,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-02-21 20:56:15,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:15,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-02-21 20:56:15,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-21 20:56:15,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:15,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-02-21 20:56:15,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-21 20:56:15,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:15,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-21 20:56:15,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-02-21 20:56:15,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:15,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-02-21 20:56:15,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-21 20:56:15,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:15,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:15,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 20:56:15,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-21 20:56:15,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-21 20:56:15,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-21 20:56:15,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-21 20:56:15,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-21 20:56:15,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-21 20:56:15,509 WARN L141 QuantifierPusher]: treesize reduction 3, result has 95.1 percent of original size [2021-02-21 20:56:15,523 WARN L147 QuantifierPusher]: treesize reduction 3, result has 95.1 percent of original size 58 [2021-02-21 20:56:15,585 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.5 percent of original size [2021-02-21 20:56:15,589 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.5 percent of original size 82 [2021-02-21 20:56:15,677 WARN L141 QuantifierPusher]: treesize reduction 25, result has 76.6 percent of original size [2021-02-21 20:56:15,679 WARN L147 QuantifierPusher]: treesize reduction 25, result has 76.6 percent of original size 82 [2021-02-21 20:56:15,683 WARN L141 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size [2021-02-21 20:56:15,685 WARN L147 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size 105 [2021-02-21 20:56:15,813 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-02-21 20:56:15,815 WARN L141 QuantifierPusher]: treesize reduction 3, result has 97.7 percent of original size [2021-02-21 20:56:15,818 WARN L147 QuantifierPusher]: treesize reduction 3, result has 97.7 percent of original size 126 [2021-02-21 20:56:15,924 WARN L141 QuantifierPusher]: treesize reduction 107, result has 28.2 percent of original size [2021-02-21 20:56:15,928 WARN L147 QuantifierPusher]: treesize reduction 107, result has 28.2 percent of original size 42 [2021-02-21 20:56:15,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:15,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-21 20:56:16,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:16,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:16,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:16,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:56:16,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-21 20:56:16,701 WARN L202 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-21 20:56:16,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:16,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:16,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:16,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:56:16,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-21 20:56:17,448 WARN L202 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-02-21 20:56:17,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:17,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:17,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:17,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:56:17,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-21 20:56:17,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:17,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:17,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:17,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:56:17,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-21 20:56:18,124 WARN L202 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-02-21 20:56:18,126 WARN L141 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size [2021-02-21 20:56:18,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:18,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:18,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:56:18,129 WARN L147 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size 30 [2021-02-21 20:56:18,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:18,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:18,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:18,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:56:18,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-21 20:56:18,814 WARN L202 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-02-21 20:56:18,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:18,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:18,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:18,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:56:18,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-21 20:56:19,577 WARN L202 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-02-21 20:56:19,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:19,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:19,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:19,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:56:19,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-21 20:56:19,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:19,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:19,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:19,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:56:19,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-21 20:56:20,264 WARN L202 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-02-21 20:56:20,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:20,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:20,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:20,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:56:20,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-21 20:56:20,941 WARN L202 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-02-21 20:56:20,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:20,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:20,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:20,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:56:20,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-21 20:56:21,638 WARN L202 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-02-21 20:56:21,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:21,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:21,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:21,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:56:21,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-02-21 20:56:21,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:21,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-21 20:56:21,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:21,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-02-21 20:56:21,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:21,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-21 20:56:21,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:21,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-21 20:56:22,036 WARN L141 QuantifierPusher]: treesize reduction 38, result has 51.9 percent of original size [2021-02-21 20:56:22,039 WARN L147 QuantifierPusher]: treesize reduction 38, result has 51.9 percent of original size 41 [2021-02-21 20:56:22,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:22,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:22,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:22,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:22,043 WARN L141 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size [2021-02-21 20:56:22,053 WARN L147 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size 1 [2021-02-21 20:56:22,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820929561] [2021-02-21 20:56:22,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:56:22,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-02-21 20:56:22,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63995744] [2021-02-21 20:56:22,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-02-21 20:56:22,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:56:22,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-02-21 20:56:22,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=833, Unknown=0, NotChecked=0, Total=1122 [2021-02-21 20:56:22,060 INFO L87 Difference]: Start difference. First operand 2575 states and 3368 transitions. Second operand 29 states. [2021-02-21 20:56:22,665 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-21 20:56:22,903 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-21 20:56:23,078 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-02-21 20:56:23,266 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 20:56:23,518 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-21 20:56:23,768 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-02-21 20:56:23,937 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-21 20:56:24,462 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-02-21 20:56:24,662 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-21 20:56:25,717 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 99 [2021-02-21 20:56:25,885 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-21 20:56:27,279 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2021-02-21 20:56:31,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:56:31,899 INFO L93 Difference]: Finished difference Result 7051 states and 9391 transitions. [2021-02-21 20:56:31,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-02-21 20:56:31,899 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 185 [2021-02-21 20:56:31,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:56:31,937 INFO L225 Difference]: With dead ends: 7051 [2021-02-21 20:56:31,937 INFO L226 Difference]: Without dead ends: 4506 [2021-02-21 20:56:31,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 834 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=602, Invalid=2050, Unknown=0, NotChecked=0, Total=2652 [2021-02-21 20:56:31,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4506 states. [2021-02-21 20:56:32,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4506 to 3802. [2021-02-21 20:56:32,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3802 states. [2021-02-21 20:56:32,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3802 states to 3802 states and 4927 transitions. [2021-02-21 20:56:32,992 INFO L78 Accepts]: Start accepts. Automaton has 3802 states and 4927 transitions. Word has length 185 [2021-02-21 20:56:32,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:56:32,993 INFO L480 AbstractCegarLoop]: Abstraction has 3802 states and 4927 transitions. [2021-02-21 20:56:32,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2021-02-21 20:56:32,993 INFO L276 IsEmpty]: Start isEmpty. Operand 3802 states and 4927 transitions. [2021-02-21 20:56:33,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-02-21 20:56:33,008 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:56:33,008 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:56:33,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 20:56:33,009 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:56:33,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:56:33,009 INFO L82 PathProgramCache]: Analyzing trace with hash -201856512, now seen corresponding path program 1 times [2021-02-21 20:56:33,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:56:33,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360215465] [2021-02-21 20:56:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:56:33,138 WARN L141 QuantifierPusher]: treesize reduction 169, result has 50.1 percent of original size [2021-02-21 20:56:33,142 WARN L147 QuantifierPusher]: treesize reduction 169, result has 50.1 percent of original size 170 [2021-02-21 20:56:33,226 WARN L141 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size [2021-02-21 20:56:33,229 WARN L147 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size 175 [2021-02-21 20:56:33,307 WARN L141 QuantifierPusher]: treesize reduction 169, result has 50.1 percent of original size [2021-02-21 20:56:33,310 WARN L147 QuantifierPusher]: treesize reduction 169, result has 50.1 percent of original size 170 [2021-02-21 20:56:33,392 WARN L141 QuantifierPusher]: treesize reduction 169, result has 50.1 percent of original size [2021-02-21 20:56:33,395 WARN L147 QuantifierPusher]: treesize reduction 169, result has 50.1 percent of original size 170 [2021-02-21 20:56:33,479 WARN L141 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size [2021-02-21 20:56:33,484 WARN L147 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size 175 [2021-02-21 20:56:33,571 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.6 percent of original size [2021-02-21 20:56:33,574 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.6 percent of original size 175 [2021-02-21 20:56:33,656 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.6 percent of original size [2021-02-21 20:56:33,660 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.6 percent of original size 175 [2021-02-21 20:56:33,740 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.4 percent of original size [2021-02-21 20:56:33,744 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.4 percent of original size 170 [2021-02-21 20:56:33,829 WARN L141 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size [2021-02-21 20:56:33,832 WARN L147 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size 175 [2021-02-21 20:56:33,955 WARN L141 QuantifierPusher]: treesize reduction 169, result has 50.1 percent of original size [2021-02-21 20:56:33,964 WARN L147 QuantifierPusher]: treesize reduction 169, result has 50.1 percent of original size 170 [2021-02-21 20:56:34,044 WARN L141 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size [2021-02-21 20:56:34,047 WARN L147 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size 175 [2021-02-21 20:56:34,129 WARN L141 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size [2021-02-21 20:56:34,132 WARN L147 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size 175 [2021-02-21 20:56:34,208 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.4 percent of original size [2021-02-21 20:56:34,211 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.4 percent of original size 170 [2021-02-21 20:56:34,290 WARN L141 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size [2021-02-21 20:56:34,294 WARN L147 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size 175 [2021-02-21 20:56:34,375 WARN L141 QuantifierPusher]: treesize reduction 169, result has 50.1 percent of original size [2021-02-21 20:56:34,378 WARN L147 QuantifierPusher]: treesize reduction 169, result has 50.1 percent of original size 170 [2021-02-21 20:56:34,460 WARN L141 QuantifierPusher]: treesize reduction 24, result has 92.9 percent of original size [2021-02-21 20:56:34,464 WARN L147 QuantifierPusher]: treesize reduction 24, result has 92.9 percent of original size 315 [2021-02-21 20:56:34,550 WARN L141 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size [2021-02-21 20:56:34,554 WARN L147 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size 178 [2021-02-21 20:56:34,640 WARN L141 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size [2021-02-21 20:56:34,643 WARN L147 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size 178 [2021-02-21 20:56:34,734 WARN L141 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size [2021-02-21 20:56:34,737 WARN L147 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size 178 [2021-02-21 20:56:34,822 WARN L141 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size [2021-02-21 20:56:34,825 WARN L147 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size 178 [2021-02-21 20:56:34,826 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-21 20:56:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:35,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:35,160 WARN L141 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-02-21 20:56:35,161 WARN L147 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size 10 [2021-02-21 20:56:35,161 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-21 20:56:35,162 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-21 20:56:35,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:35,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:35,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:35,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:35,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:35,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:35,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:56:35,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:56:35,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:35,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:35,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:35,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:56:35,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:35,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:35,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:35,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 20:56:35,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-21 20:56:35,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-21 20:56:35,267 WARN L141 QuantifierPusher]: treesize reduction 56, result has 18.8 percent of original size [2021-02-21 20:56:35,268 WARN L147 QuantifierPusher]: treesize reduction 56, result has 18.8 percent of original size 13 [2021-02-21 20:56:35,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 20:56:35,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:35,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:56:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:35,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:35,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:35,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:56:35,469 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-21 20:56:35,472 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-21 20:56:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:56:35,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-02-21 20:56:35,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:35,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-02-21 20:56:35,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-02-21 20:56:35,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:35,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-02-21 20:56:35,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-02-21 20:56:35,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:35,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-02-21 20:56:35,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-02-21 20:56:35,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:35,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-02-21 20:56:35,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-02-21 20:56:35,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:35,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-02-21 20:56:35,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-02-21 20:56:35,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:35,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-02-21 20:56:35,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-02-21 20:56:35,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:35,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-02-21 20:56:35,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-02-21 20:56:35,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:35,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-21 20:56:35,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-02-21 20:56:35,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:35,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-02-21 20:56:35,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-02-21 20:56:35,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:35,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-02-21 20:56:35,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-21 20:56:35,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:35,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-21 20:56:35,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-02-21 20:56:35,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:35,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-21 20:56:35,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-02-21 20:56:35,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:56:35,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:35,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-21 20:56:35,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-02-21 20:56:36,057 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 654 DAG size of output: 85 [2021-02-21 20:56:36,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:36,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:36,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:36,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:56:36,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:36,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-21 20:56:36,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:36,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-21 20:56:36,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:36,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-21 20:56:36,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:36,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-21 20:56:36,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:36,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-21 20:56:36,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:36,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-21 20:56:36,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:36,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-21 20:56:36,297 WARN L141 QuantifierPusher]: treesize reduction 38, result has 43.3 percent of original size [2021-02-21 20:56:36,298 WARN L147 QuantifierPusher]: treesize reduction 38, result has 43.3 percent of original size 29 [2021-02-21 20:56:36,299 WARN L141 QuantifierPusher]: treesize reduction 7, result has 87.5 percent of original size [2021-02-21 20:56:36,300 WARN L147 QuantifierPusher]: treesize reduction 7, result has 87.5 percent of original size 49 [2021-02-21 20:56:36,347 WARN L141 QuantifierPusher]: treesize reduction 25, result has 66.2 percent of original size [2021-02-21 20:56:36,348 WARN L147 QuantifierPusher]: treesize reduction 25, result has 66.2 percent of original size 49 [2021-02-21 20:56:36,349 WARN L141 QuantifierPusher]: treesize reduction 26, result has 65.3 percent of original size [2021-02-21 20:56:36,350 WARN L147 QuantifierPusher]: treesize reduction 26, result has 65.3 percent of original size 49 [2021-02-21 20:56:36,351 WARN L141 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-02-21 20:56:36,352 WARN L147 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size 49 [2021-02-21 20:56:36,353 WARN L141 QuantifierPusher]: treesize reduction 7, result has 90.8 percent of original size [2021-02-21 20:56:36,354 WARN L147 QuantifierPusher]: treesize reduction 7, result has 90.8 percent of original size 69 [2021-02-21 20:56:36,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:36,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:36,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:36,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:36,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:36,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:36,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:36,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:36,422 WARN L141 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size [2021-02-21 20:56:36,423 WARN L147 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size 1 [2021-02-21 20:56:36,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360215465] [2021-02-21 20:56:36,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:56:36,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-21 20:56:36,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482482705] [2021-02-21 20:56:36,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-21 20:56:36,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:56:36,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-21 20:56:36,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=306, Unknown=0, NotChecked=0, Total=506 [2021-02-21 20:56:36,425 INFO L87 Difference]: Start difference. First operand 3802 states and 4927 transitions. Second operand 15 states. [2021-02-21 20:56:36,621 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-21 20:56:36,770 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-21 20:56:36,912 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-21 20:56:37,050 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-21 20:56:37,187 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-21 20:56:37,329 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-21 20:56:37,467 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-21 20:56:37,654 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-02-21 20:56:37,937 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-02-21 20:56:38,750 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-21 20:56:44,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:56:44,832 INFO L93 Difference]: Finished difference Result 8882 states and 11589 transitions. [2021-02-21 20:56:44,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-02-21 20:56:44,833 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 187 [2021-02-21 20:56:44,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:56:44,872 INFO L225 Difference]: With dead ends: 8882 [2021-02-21 20:56:44,872 INFO L226 Difference]: Without dead ends: 5110 [2021-02-21 20:56:44,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=416, Invalid=774, Unknown=0, NotChecked=0, Total=1190 [2021-02-21 20:56:44,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5110 states. [2021-02-21 20:56:46,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5110 to 4297. [2021-02-21 20:56:46,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4297 states. [2021-02-21 20:56:46,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4297 states to 4297 states and 5563 transitions. [2021-02-21 20:56:46,147 INFO L78 Accepts]: Start accepts. Automaton has 4297 states and 5563 transitions. Word has length 187 [2021-02-21 20:56:46,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:56:46,147 INFO L480 AbstractCegarLoop]: Abstraction has 4297 states and 5563 transitions. [2021-02-21 20:56:46,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-21 20:56:46,147 INFO L276 IsEmpty]: Start isEmpty. Operand 4297 states and 5563 transitions. [2021-02-21 20:56:46,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-02-21 20:56:46,167 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:56:46,168 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:56:46,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 20:56:46,168 INFO L428 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:56:46,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:56:46,169 INFO L82 PathProgramCache]: Analyzing trace with hash -195928590, now seen corresponding path program 1 times [2021-02-21 20:56:46,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:56:46,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146904714] [2021-02-21 20:56:46,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:56:46,259 WARN L141 QuantifierPusher]: treesize reduction -2, result has 103.3 percent of original size [2021-02-21 20:56:46,262 WARN L147 QuantifierPusher]: treesize reduction -2, result has 103.3 percent of original size 63 [2021-02-21 20:56:46,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:46,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-21 20:56:46,435 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:56:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:46,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:46,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:46,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:46,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:46,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:46,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:46,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:56:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:46,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:46,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:46,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-21 20:56:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:46,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:46,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:46,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-21 20:56:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:46,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:46,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:46,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:46,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 20:56:46,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-02-21 20:56:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:46,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:46,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:46,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:46,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:56:46,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:56:46,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146904714] [2021-02-21 20:56:46,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:56:46,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 20:56:46,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128464613] [2021-02-21 20:56:46,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 20:56:46,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:56:46,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 20:56:46,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-21 20:56:46,657 INFO L87 Difference]: Start difference. First operand 4297 states and 5563 transitions. Second operand 7 states. [2021-02-21 20:56:51,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:56:51,333 INFO L93 Difference]: Finished difference Result 9742 states and 12683 transitions. [2021-02-21 20:56:51,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-21 20:56:51,333 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2021-02-21 20:56:51,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:56:51,367 INFO L225 Difference]: With dead ends: 9742 [2021-02-21 20:56:51,368 INFO L226 Difference]: Without dead ends: 5457 [2021-02-21 20:56:51,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-21 20:56:51,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5457 states. [2021-02-21 20:56:52,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5457 to 4937. [2021-02-21 20:56:52,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4937 states. [2021-02-21 20:56:52,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4937 states to 4937 states and 6127 transitions. [2021-02-21 20:56:52,647 INFO L78 Accepts]: Start accepts. Automaton has 4937 states and 6127 transitions. Word has length 198 [2021-02-21 20:56:52,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:56:52,647 INFO L480 AbstractCegarLoop]: Abstraction has 4937 states and 6127 transitions. [2021-02-21 20:56:52,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 20:56:52,647 INFO L276 IsEmpty]: Start isEmpty. Operand 4937 states and 6127 transitions. [2021-02-21 20:56:52,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-02-21 20:56:52,668 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:56:52,668 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:56:52,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 20:56:52,669 INFO L428 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:56:52,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:56:52,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1448669497, now seen corresponding path program 2 times [2021-02-21 20:56:52,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:56:52,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968067688] [2021-02-21 20:56:52,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:56:52,795 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 43 [2021-02-21 20:56:52,797 WARN L141 QuantifierPusher]: treesize reduction -2, result has 103.5 percent of original size [2021-02-21 20:56:52,798 WARN L147 QuantifierPusher]: treesize reduction -2, result has 103.5 percent of original size 59 [2021-02-21 20:56:52,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:52,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-21 20:56:52,954 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:56:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:53,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:53,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:53,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:53,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:53,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:53,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:53,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:53,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:53,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:56:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:53,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:53,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:53,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:53,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 20:56:53,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-21 20:56:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:53,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:53,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:53,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:53,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:53,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-21 20:56:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:53,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:53,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:56:53,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:53,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:56:53,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-21 20:56:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:56:53,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:53,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:53,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:56:53,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968067688] [2021-02-21 20:56:53,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:56:53,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 20:56:53,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585224306] [2021-02-21 20:56:53,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 20:56:53,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:56:53,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 20:56:53,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-21 20:56:53,268 INFO L87 Difference]: Start difference. First operand 4937 states and 6127 transitions. Second operand 7 states. [2021-02-21 20:56:57,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:56:57,426 INFO L93 Difference]: Finished difference Result 11695 states and 15340 transitions. [2021-02-21 20:56:57,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-21 20:56:57,426 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2021-02-21 20:56:57,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:56:57,470 INFO L225 Difference]: With dead ends: 11695 [2021-02-21 20:56:57,470 INFO L226 Difference]: Without dead ends: 6753 [2021-02-21 20:56:57,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-21 20:56:57,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6753 states. [2021-02-21 20:56:59,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6753 to 6416. [2021-02-21 20:56:59,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6416 states. [2021-02-21 20:56:59,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6416 states to 6416 states and 7797 transitions. [2021-02-21 20:56:59,230 INFO L78 Accepts]: Start accepts. Automaton has 6416 states and 7797 transitions. Word has length 204 [2021-02-21 20:56:59,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:56:59,230 INFO L480 AbstractCegarLoop]: Abstraction has 6416 states and 7797 transitions. [2021-02-21 20:56:59,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 20:56:59,230 INFO L276 IsEmpty]: Start isEmpty. Operand 6416 states and 7797 transitions. [2021-02-21 20:56:59,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-02-21 20:56:59,249 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:56:59,249 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:56:59,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-21 20:56:59,250 INFO L428 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:56:59,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:56:59,250 INFO L82 PathProgramCache]: Analyzing trace with hash 2042669590, now seen corresponding path program 1 times [2021-02-21 20:56:59,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:56:59,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015379630] [2021-02-21 20:56:59,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:56:59,380 WARN L141 QuantifierPusher]: treesize reduction 184, result has 50.1 percent of original size [2021-02-21 20:56:59,383 WARN L147 QuantifierPusher]: treesize reduction 184, result has 50.1 percent of original size 185 [2021-02-21 20:56:59,464 WARN L141 QuantifierPusher]: treesize reduction 179, result has 50.1 percent of original size [2021-02-21 20:56:59,467 WARN L147 QuantifierPusher]: treesize reduction 179, result has 50.1 percent of original size 180 [2021-02-21 20:56:59,550 WARN L141 QuantifierPusher]: treesize reduction 179, result has 50.1 percent of original size [2021-02-21 20:56:59,552 WARN L147 QuantifierPusher]: treesize reduction 179, result has 50.1 percent of original size 180 [2021-02-21 20:56:59,629 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.8 percent of original size [2021-02-21 20:56:59,632 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.8 percent of original size 180 [2021-02-21 20:56:59,711 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.8 percent of original size [2021-02-21 20:56:59,714 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.8 percent of original size 180 [2021-02-21 20:56:59,878 WARN L141 QuantifierPusher]: treesize reduction 184, result has 50.1 percent of original size [2021-02-21 20:56:59,882 WARN L147 QuantifierPusher]: treesize reduction 184, result has 50.1 percent of original size 185 [2021-02-21 20:56:59,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:59,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:59,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:59,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:59,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:59,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:59,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:59,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:56:59,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:56:59,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,028 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.8 percent of original size [2021-02-21 20:57:00,032 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.8 percent of original size 182 [2021-02-21 20:57:00,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,265 WARN L141 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size [2021-02-21 20:57:00,268 WARN L147 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size 177 [2021-02-21 20:57:00,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,442 WARN L141 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size [2021-02-21 20:57:00,445 WARN L147 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size 177 [2021-02-21 20:57:00,522 WARN L141 QuantifierPusher]: treesize reduction 181, result has 50.1 percent of original size [2021-02-21 20:57:00,525 WARN L147 QuantifierPusher]: treesize reduction 181, result has 50.1 percent of original size 182 [2021-02-21 20:57:00,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,716 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.8 percent of original size [2021-02-21 20:57:00,724 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.8 percent of original size 182 [2021-02-21 20:57:00,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:00,946 WARN L141 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size [2021-02-21 20:57:00,949 WARN L147 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size 177 [2021-02-21 20:57:00,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:00,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:01,048 WARN L141 QuantifierPusher]: treesize reduction 181, result has 50.1 percent of original size [2021-02-21 20:57:01,052 WARN L147 QuantifierPusher]: treesize reduction 181, result has 50.1 percent of original size 182 [2021-02-21 20:57:01,141 WARN L141 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size [2021-02-21 20:57:01,144 WARN L147 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size 177 [2021-02-21 20:57:01,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:01,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:01,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:01,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:01,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:01,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:01,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:01,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:01,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:01,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:01,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:01,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:01,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:01,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:01,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:01,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:01,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:01,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:01,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:57:01,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:57:01,351 WARN L141 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size [2021-02-21 20:57:01,355 WARN L147 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size 178 [2021-02-21 20:57:01,449 WARN L141 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size [2021-02-21 20:57:01,453 WARN L147 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size 178 [2021-02-21 20:57:01,540 WARN L141 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size [2021-02-21 20:57:01,547 WARN L147 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size 178 [2021-02-21 20:57:01,627 WARN L141 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size [2021-02-21 20:57:01,635 WARN L147 QuantifierPusher]: treesize reduction 177, result has 50.1 percent of original size 178 [2021-02-21 20:57:01,636 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-21 20:57:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 20:57:01,755 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 20:57:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 20:57:01,857 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 20:57:02,003 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 20:57:02,003 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 20:57:02,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-21 20:57:02,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 08:57:02 BoogieIcfgContainer [2021-02-21 20:57:02,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 20:57:02,036 INFO L168 Benchmark]: Toolchain (without parser) took 66825.84 ms. Allocated memory was 163.6 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 137.9 MB in the beginning and 734.0 MB in the end (delta: -596.1 MB). Peak memory consumption was 644.3 MB. Max. memory is 8.0 GB. [2021-02-21 20:57:02,036 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 163.6 MB. Free memory is still 137.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 20:57:02,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 754.22 ms. Allocated memory is still 163.6 MB. Free memory was 136.9 MB in the beginning and 144.0 MB in the end (delta: -7.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 8.0 GB. [2021-02-21 20:57:02,037 INFO L168 Benchmark]: Boogie Preprocessor took 188.31 ms. Allocated memory is still 163.6 MB. Free memory was 144.0 MB in the beginning and 139.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2021-02-21 20:57:02,037 INFO L168 Benchmark]: RCFGBuilder took 1637.11 ms. Allocated memory was 163.6 MB in the beginning and 219.2 MB in the end (delta: 55.6 MB). Free memory was 139.1 MB in the beginning and 135.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 66.9 MB. Max. memory is 8.0 GB. [2021-02-21 20:57:02,037 INFO L168 Benchmark]: TraceAbstraction took 64220.35 ms. Allocated memory was 219.2 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 135.1 MB in the beginning and 734.0 MB in the end (delta: -598.9 MB). Peak memory consumption was 585.0 MB. Max. memory is 8.0 GB. [2021-02-21 20:57:02,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 163.6 MB. Free memory is still 137.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 754.22 ms. Allocated memory is still 163.6 MB. Free memory was 136.9 MB in the beginning and 144.0 MB in the end (delta: -7.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 188.31 ms. Allocated memory is still 163.6 MB. Free memory was 144.0 MB in the beginning and 139.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1637.11 ms. Allocated memory was 163.6 MB in the beginning and 219.2 MB in the end (delta: 55.6 MB). Free memory was 139.1 MB in the beginning and 135.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 66.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 64220.35 ms. Allocated memory was 219.2 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 135.1 MB in the beginning and 734.0 MB in the end (delta: -598.9 MB). Peak memory consumption was 585.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 518]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int a= 1; [L18] int e= 5; [L19] int d= 4; [L20] int f= 6; [L21] int c= 3; [L24] int u = 21; [L25] int v = 22; [L26] int w = 23; [L27] int x = 24; [L28] int y = 25; [L29] int z = 26; [L32] int a25 = 0; [L33] int a11 = 0; [L34] int a28 = 7; [L35] int a19 = 1; [L36] int a21 = 1; [L37] int a17 = 8; [L613] int output = -1; [L616] COND TRUE 1 [L619] int input; [L620] input = __VERIFIER_nondet_int() [L621] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L624] CALL, EXPR calculate_output(input) [L40] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L45] COND TRUE ((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1))) [L46] a28 = 10 [L47] return 22; [L624] RET, EXPR calculate_output(input) [L624] output = calculate_output(input) [L616] COND TRUE 1 [L619] int input; [L620] input = __VERIFIER_nondet_int() [L621] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L624] CALL, EXPR calculate_output(input) [L40] COND TRUE (((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8)) [L41] a28 = 9 [L42] a11 = 1 [L43] a25 = 1 [L44] return -1; [L624] RET, EXPR calculate_output(input) [L624] output = calculate_output(input) [L616] COND TRUE 1 [L619] int input; [L620] input = __VERIFIER_nondet_int() [L621] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L624] CALL, EXPR calculate_output(input) [L40] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L45] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L48] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L52] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L57] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L60] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L64] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L69] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L75] COND TRUE ((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1))) [L76] a28 = 10 [L77] a25 = 0 [L78] return 22; [L624] RET, EXPR calculate_output(input) [L624] output = calculate_output(input) [L616] COND TRUE 1 [L619] int input; [L620] input = __VERIFIER_nondet_int() [L621] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L624] CALL calculate_output(input) [L40] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L45] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L48] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L52] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L57] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L60] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L64] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L69] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L75] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L79] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L84] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L92] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L101] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L105] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L109] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L116] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L123] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L129] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L133] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L140] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L144] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L149] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L153] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L158] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L164] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L169] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L175] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L179] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L185] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L189] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L195] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L197] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L199] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L201] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L204] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L208] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L212] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L222] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L225] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L228] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L233] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L235] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L242] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L244] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L247] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L258] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L263] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L269] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L271] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L286] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L290] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L293] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L296] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L301] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L303] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L307] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L319] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L324] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L338] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L341] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L347] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L359] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L364] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L371] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L378] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L385] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L388] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L390] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L399] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L404] COND FALSE !((((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1))) [L408] COND FALSE !((((a17==8)&&((((input==4)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9))))&&(a21==1))&&!(a19==1)))&&!(a11==1))) [L412] COND FALSE !((((!(a11==1)&&((((a19==1)&&(input==5))&&(a17==8))&&(a21==1)))&&(a28==9))&&!(a25==1))) [L414] COND FALSE !((((a11==1)&&((a19==1)&&((a21==1)&&(((a17==9)&&(input==5))&&!(a25==1)))))&&(a28==8))) [L417] COND FALSE !((!(a11==1)&&((a21==1)&&(((a19==1)&&((a17==8)&&((a25==1)&&(input==5))))&&(a28==11))))) [L419] COND FALSE !(((a19==1)&&((a17==8)&&(((((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))&&!(a11==1))&&(a21==1))))) [L424] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==8))) [L427] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8))) [L430] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L433] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L436] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8))) [L439] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==9))&&!(a19==1))&&(a21==1))&&(a17==7))) [L442] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==10))&&!(a19==1))&&(a21==1))&&(a17==7))) [L445] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8))) [L448] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L451] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==8))) [L454] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==11))&&!(a19==1))&&(a21==1))&&(a17==8))) [L457] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L460] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==7))) [L463] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==10))&&!(a19==1))&&(a21==1))&&(a17==7))) [L466] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==11))&&(a19==1))&&(a21==1))&&(a17==7))) [L469] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==7))) [L472] COND FALSE !((((((!(a25==1)&&!(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==7))) [L475] COND FALSE !((((((!(a25==1)&&!(a11==1))&&(a28==9))&&!(a19==1))&&(a21==1))&&(a17==7))) [L478] COND FALSE !((((((!(a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L481] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==8))) [L484] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==9))&&!(a19==1))&&(a21==1))&&(a17==8))) [L487] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==7))) [L490] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==11))&&!(a19==1))&&(a21==1))&&(a17==8))) [L493] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==8))&&!(a19==1))&&(a21==1))&&(a17==8))) [L496] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&!(a19==1))&&(a21==1))&&(a17==8))) [L499] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==7))) [L502] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==11))&&(a19==1))&&(a21==1))&&(a17==8))) [L505] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==8))&&!(a19==1))&&(a21==1))&&(a17==7))) [L508] COND FALSE !((((((!(a25==1)&&!(a11==1))&&(a28==8))&&!(a19==1))&&(a21==1))&&(a17==7))) [L511] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==8))&&!(a19==1))&&(a21==1))&&(a17==8))) [L514] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L517] COND TRUE (((((!(a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8)) [L518] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 539 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 64.1s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 39.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2318 SDtfs, 12288 SDslu, 3064 SDs, 0 SdLazy, 15849 SolverSat, 1566 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 265 GetRequests, 121 SyntacticMatches, 2 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1668 ImplicationChecksByTransitivity, 14.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6416occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 2921 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, 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 incorrect! Received shutdown request...