/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_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:19:18,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:19:18,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:19:18,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 18:19:18,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:19:18,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:19:18,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:19:18,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:19:18,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:19:18,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:19:18,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:19:18,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:19:18,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:19:18,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:19:18,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:19:18,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:19:18,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 18:19:18,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:19:18,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:19:18,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:19:18,731 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:19:18,753 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:19:18,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:19:18,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:19:18,760 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:19:18,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:19:18,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:19:18,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:19:18,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:19:18,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:19:18,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:19:18,763 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:19:18,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:19:18,764 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:19:18,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:19:18,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:19:18,765 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:19:18,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:19:18,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:19:18,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:19:18,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:19:18,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:19:18,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:19:18,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:19:19,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:19:19,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:19:19,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:19:19,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:19:19,264 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:19:19,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label16.c [2021-02-23 18:19:19,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd52200a/b59618d64e8b4ae78ff71dbdd2afeab1/FLAG89f4ce67f [2021-02-23 18:19:20,214 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:19:20,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label16.c [2021-02-23 18:19:20,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd52200a/b59618d64e8b4ae78ff71dbdd2afeab1/FLAG89f4ce67f [2021-02-23 18:19:20,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd52200a/b59618d64e8b4ae78ff71dbdd2afeab1 [2021-02-23 18:19:20,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:19:20,500 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:19:20,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:19:20,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:19:20,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:19:20,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:19:20" (1/1) ... [2021-02-23 18:19:20,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1724468c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:20, skipping insertion in model container [2021-02-23 18:19:20,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:19:20" (1/1) ... [2021-02-23 18:19:20,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:19:20,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:19:20,941 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_label16.c[15312,15325] [2021-02-23 18:19:20,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:19:20,996 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:19:21,201 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_label16.c[15312,15325] [2021-02-23 18:19:21,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:19:21,273 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:19:21,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:21 WrapperNode [2021-02-23 18:19:21,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:19:21,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:19:21,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:19:21,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:19:21,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:21" (1/1) ... [2021-02-23 18:19:21,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:21" (1/1) ... [2021-02-23 18:19:21,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:21" (1/1) ... [2021-02-23 18:19:21,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:21" (1/1) ... [2021-02-23 18:19:21,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:21" (1/1) ... [2021-02-23 18:19:21,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:21" (1/1) ... [2021-02-23 18:19:21,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:21" (1/1) ... [2021-02-23 18:19:21,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:19:21,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:19:21,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:19:21,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:19:21,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:21" (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 [2021-02-23 18:19:21,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:19:21,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:19:21,507 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:19:21,507 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-23 18:19:21,507 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:19:21,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-23 18:19:21,507 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:19:21,508 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:19:21,508 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:19:21,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:19:21,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 18:19:21,509 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 18:19:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:19:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:19:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:19:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:19:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:19:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:19:21,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:19:23,049 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:19:23,049 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 18:19:23,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:19:23 BoogieIcfgContainer [2021-02-23 18:19:23,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:19:23,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:19:23,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:19:23,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:19:23,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:19:20" (1/3) ... [2021-02-23 18:19:23,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50baea17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:19:23, skipping insertion in model container [2021-02-23 18:19:23,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:21" (2/3) ... [2021-02-23 18:19:23,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50baea17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:19:23, skipping insertion in model container [2021-02-23 18:19:23,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:19:23" (3/3) ... [2021-02-23 18:19:23,064 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label16.c [2021-02-23 18:19:23,073 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:19:23,080 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:19:23,104 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:19:23,134 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:19:23,134 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:19:23,134 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:19:23,134 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:19:23,134 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:19:23,135 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:19:23,135 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:19:23,135 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:19:23,165 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states. [2021-02-23 18:19:23,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-02-23 18:19:23,191 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:19:23,192 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] [2021-02-23 18:19:23,193 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:19:23,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:19:23,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1280091089, now seen corresponding path program 1 times [2021-02-23 18:19:23,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:19:23,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051116993] [2021-02-23 18:19:23,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:19:23,303 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:19:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:19:23,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:23,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:19:23,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:23,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:19:23,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:23,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:19:23,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:23,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:23,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:19:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:19:23,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:23,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:23,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:23,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:19:23,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:19:23,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051116993] [2021-02-23 18:19:23,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:19:23,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:19:23,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150191100] [2021-02-23 18:19:23,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:19:23,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:19:23,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:19:23,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:19:23,987 INFO L87 Difference]: Start difference. First operand 536 states. Second operand 4 states. [2021-02-23 18:19:26,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:19:26,863 INFO L93 Difference]: Finished difference Result 1215 states and 1661 transitions. [2021-02-23 18:19:26,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 18:19:26,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2021-02-23 18:19:26,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:19:26,904 INFO L225 Difference]: With dead ends: 1215 [2021-02-23 18:19:26,905 INFO L226 Difference]: Without dead ends: 636 [2021-02-23 18:19:26,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:19:26,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-02-23 18:19:27,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 623. [2021-02-23 18:19:27,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2021-02-23 18:19:27,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 759 transitions. [2021-02-23 18:19:27,129 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 759 transitions. Word has length 121 [2021-02-23 18:19:27,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:19:27,130 INFO L480 AbstractCegarLoop]: Abstraction has 623 states and 759 transitions. [2021-02-23 18:19:27,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:19:27,130 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 759 transitions. [2021-02-23 18:19:27,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-02-23 18:19:27,138 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:19:27,138 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:19:27,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:19:27,139 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:19:27,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:19:27,140 INFO L82 PathProgramCache]: Analyzing trace with hash 2122805689, now seen corresponding path program 1 times [2021-02-23 18:19:27,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:19:27,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655524011] [2021-02-23 18:19:27,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:19:27,373 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.5 percent of original size [2021-02-23 18:19:27,404 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.5 percent of original size 173 [2021-02-23 18:19:27,551 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.5 percent of original size [2021-02-23 18:19:27,562 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.5 percent of original size 173 [2021-02-23 18:19:27,564 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 18:19:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:19:27,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:27,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:19:27,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:27,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:19:27,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:27,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:19:27,764 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-23 18:19:27,765 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-23 18:19:27,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:27,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:19:27,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:27,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:27,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:19:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:19:27,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:27,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:27,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:27,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:19:27,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:27,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:19:27,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:19:27,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:27,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-02-23 18:19:27,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:27,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:19:27,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:27,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-02-23 18:19:27,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-23 18:19:27,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:27,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:19:27,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:27,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:19:27,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:27,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 18:19:28,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:28,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 18:19:28,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:28,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 18:19:28,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:28,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-23 18:19:28,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:28,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-23 18:19:28,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:28,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 18:19:28,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:28,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-23 18:19:28,246 WARN L141 QuantifierPusher]: treesize reduction 17, result has 73.4 percent of original size [2021-02-23 18:19:28,248 WARN L147 QuantifierPusher]: treesize reduction 17, result has 73.4 percent of original size 47 [2021-02-23 18:19:28,300 WARN L141 QuantifierPusher]: treesize reduction 6, result has 91.9 percent of original size [2021-02-23 18:19:28,302 WARN L147 QuantifierPusher]: treesize reduction 6, result has 91.9 percent of original size 68 [2021-02-23 18:19:28,366 WARN L141 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-02-23 18:19:28,369 WARN L147 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size 68 [2021-02-23 18:19:28,372 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.6 percent of original size [2021-02-23 18:19:28,374 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.6 percent of original size 88 [2021-02-23 18:19:28,473 WARN L141 QuantifierPusher]: treesize reduction 3, result has 97.3 percent of original size [2021-02-23 18:19:28,476 WARN L147 QuantifierPusher]: treesize reduction 3, result has 97.3 percent of original size 109 [2021-02-23 18:19:28,575 WARN L141 QuantifierPusher]: treesize reduction 6, result has 95.6 percent of original size [2021-02-23 18:19:28,578 WARN L147 QuantifierPusher]: treesize reduction 6, result has 95.6 percent of original size 130 [2021-02-23 18:19:28,697 WARN L141 QuantifierPusher]: treesize reduction 26, result has 85.2 percent of original size [2021-02-23 18:19:28,701 WARN L147 QuantifierPusher]: treesize reduction 26, result has 85.2 percent of original size 150 [2021-02-23 18:19:28,888 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2021-02-23 18:19:28,893 WARN L141 QuantifierPusher]: treesize reduction 48, result has 72.4 percent of original size [2021-02-23 18:19:28,895 WARN L147 QuantifierPusher]: treesize reduction 48, result has 72.4 percent of original size 126 [2021-02-23 18:19:28,899 WARN L141 QuantifierPusher]: treesize reduction 17, result has 89.6 percent of original size [2021-02-23 18:19:28,901 WARN L147 QuantifierPusher]: treesize reduction 17, result has 89.6 percent of original size 147 [2021-02-23 18:19:29,030 WARN L141 QuantifierPusher]: treesize reduction 17, result has 90.8 percent of original size [2021-02-23 18:19:29,032 WARN L147 QuantifierPusher]: treesize reduction 17, result has 90.8 percent of original size 167 [2021-02-23 18:19:29,175 WARN L141 QuantifierPusher]: treesize reduction 27, result has 86.1 percent of original size [2021-02-23 18:19:29,178 WARN L147 QuantifierPusher]: treesize reduction 27, result has 86.1 percent of original size 167 [2021-02-23 18:19:29,182 WARN L141 QuantifierPusher]: treesize reduction 26, result has 87.8 percent of original size [2021-02-23 18:19:29,186 WARN L147 QuantifierPusher]: treesize reduction 26, result has 87.8 percent of original size 187 [2021-02-23 18:19:29,339 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-02-23 18:19:29,344 WARN L141 QuantifierPusher]: treesize reduction 28, result has 87.0 percent of original size [2021-02-23 18:19:29,347 WARN L147 QuantifierPusher]: treesize reduction 28, result has 87.0 percent of original size 187 [2021-02-23 18:19:29,351 WARN L141 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-02-23 18:19:29,355 WARN L147 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size 207 [2021-02-23 18:19:29,544 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-02-23 18:19:29,548 WARN L141 QuantifierPusher]: treesize reduction 228, result has 0.4 percent of original size [2021-02-23 18:19:29,549 WARN L147 QuantifierPusher]: treesize reduction 228, result has 0.4 percent of original size 1 [2021-02-23 18:19:29,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:29,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:29,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:29,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:29,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655524011] [2021-02-23 18:19:29,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:19:29,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-02-23 18:19:29,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432066263] [2021-02-23 18:19:29,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-23 18:19:29,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:19:29,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-23 18:19:29,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2021-02-23 18:19:29,557 INFO L87 Difference]: Start difference. First operand 623 states and 759 transitions. Second operand 22 states. [2021-02-23 18:19:29,859 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-23 18:19:30,329 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-23 18:19:30,460 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-23 18:19:30,600 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-02-23 18:19:30,769 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-02-23 18:19:30,971 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-02-23 18:19:31,179 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-23 18:19:31,423 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-23 18:19:31,662 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-23 18:19:31,956 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-02-23 18:19:32,238 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-02-23 18:19:32,536 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-02-23 18:19:32,842 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 18:19:39,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:19:39,730 INFO L93 Difference]: Finished difference Result 2711 states and 3610 transitions. [2021-02-23 18:19:39,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-23 18:19:39,731 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 155 [2021-02-23 18:19:39,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:19:39,751 INFO L225 Difference]: With dead ends: 2711 [2021-02-23 18:19:39,751 INFO L226 Difference]: Without dead ends: 2118 [2021-02-23 18:19:39,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=556, Invalid=1336, Unknown=0, NotChecked=0, Total=1892 [2021-02-23 18:19:39,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2021-02-23 18:19:40,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1929. [2021-02-23 18:19:40,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1929 states. [2021-02-23 18:19:40,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2477 transitions. [2021-02-23 18:19:40,318 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2477 transitions. Word has length 155 [2021-02-23 18:19:40,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:19:40,319 INFO L480 AbstractCegarLoop]: Abstraction has 1929 states and 2477 transitions. [2021-02-23 18:19:40,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-02-23 18:19:40,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2477 transitions. [2021-02-23 18:19:40,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 18:19:40,328 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:19:40,329 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-02-23 18:19:40,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:19:40,330 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:19:40,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:19:40,330 INFO L82 PathProgramCache]: Analyzing trace with hash -842898763, now seen corresponding path program 1 times [2021-02-23 18:19:40,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:19:40,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126235666] [2021-02-23 18:19:40,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:19:40,456 WARN L141 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size [2021-02-23 18:19:40,460 WARN L147 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size 175 [2021-02-23 18:19:40,561 WARN L141 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size [2021-02-23 18:19:40,566 WARN L147 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size 175 [2021-02-23 18:19:40,668 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.6 percent of original size [2021-02-23 18:19:40,674 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.6 percent of original size 175 [2021-02-23 18:19:40,776 WARN L141 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size [2021-02-23 18:19:40,780 WARN L147 QuantifierPusher]: treesize reduction 174, result has 50.1 percent of original size 175 [2021-02-23 18:19:40,781 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 18:19:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:19:40,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:40,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:19:40,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:40,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:19:40,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:40,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:19:40,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:40,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:19:40,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:40,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:19:40,961 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-23 18:19:40,962 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-23 18:19:40,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:40,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:19:40,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:40,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:41,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:19:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:19:41,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:41,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:19:41,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:19:41,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:19:41,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:19:41,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-02-23 18:19:41,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:19:41,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-23 18:19:41,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-02-23 18:19:41,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:19:41,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-23 18:19:41,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-02-23 18:19:41,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:19:41,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:19:41,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 18:19:41,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:19:41,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:19:41,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-23 18:19:41,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-23 18:19:41,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-23 18:19:41,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:41,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-23 18:19:41,519 WARN L141 QuantifierPusher]: treesize reduction 38, result has 43.3 percent of original size [2021-02-23 18:19:41,522 WARN L147 QuantifierPusher]: treesize reduction 38, result has 43.3 percent of original size 29 [2021-02-23 18:19:41,523 WARN L141 QuantifierPusher]: treesize reduction 3, result has 94.6 percent of original size [2021-02-23 18:19:41,526 WARN L147 QuantifierPusher]: treesize reduction 3, result has 94.6 percent of original size 53 [2021-02-23 18:19:41,575 WARN L141 QuantifierPusher]: treesize reduction 25, result has 67.9 percent of original size [2021-02-23 18:19:41,576 WARN L147 QuantifierPusher]: treesize reduction 25, result has 67.9 percent of original size 53 [2021-02-23 18:19:41,578 WARN L141 QuantifierPusher]: treesize reduction 26, result has 67.1 percent of original size [2021-02-23 18:19:41,579 WARN L147 QuantifierPusher]: treesize reduction 26, result has 67.1 percent of original size 53 [2021-02-23 18:19:41,581 WARN L141 QuantifierPusher]: treesize reduction 24, result has 68.8 percent of original size [2021-02-23 18:19:41,582 WARN L147 QuantifierPusher]: treesize reduction 24, result has 68.8 percent of original size 53 [2021-02-23 18:19:41,583 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.3 percent of original size [2021-02-23 18:19:41,585 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.3 percent of original size 77 [2021-02-23 18:19:41,654 WARN L141 QuantifierPusher]: treesize reduction 12, result has 90.2 percent of original size [2021-02-23 18:19:41,656 WARN L147 QuantifierPusher]: treesize reduction 12, result has 90.2 percent of original size 111 [2021-02-23 18:19:41,809 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-02-23 18:19:41,813 WARN L141 QuantifierPusher]: treesize reduction 48, result has 66.0 percent of original size [2021-02-23 18:19:41,822 WARN L147 QuantifierPusher]: treesize reduction 48, result has 66.0 percent of original size 93 [2021-02-23 18:19:41,826 WARN L141 QuantifierPusher]: treesize reduction 38, result has 71.0 percent of original size [2021-02-23 18:19:41,827 WARN L147 QuantifierPusher]: treesize reduction 38, result has 71.0 percent of original size 93 [2021-02-23 18:19:41,829 WARN L141 QuantifierPusher]: treesize reduction 37, result has 71.5 percent of original size [2021-02-23 18:19:41,831 WARN L147 QuantifierPusher]: treesize reduction 37, result has 71.5 percent of original size 93 [2021-02-23 18:19:41,834 WARN L141 QuantifierPusher]: treesize reduction 27, result has 77.5 percent of original size [2021-02-23 18:19:41,835 WARN L147 QuantifierPusher]: treesize reduction 27, result has 77.5 percent of original size 93 [2021-02-23 18:19:41,837 WARN L141 QuantifierPusher]: treesize reduction 12, result has 91.4 percent of original size [2021-02-23 18:19:41,839 WARN L147 QuantifierPusher]: treesize reduction 12, result has 91.4 percent of original size 127 [2021-02-23 18:19:42,027 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-02-23 18:19:42,030 WARN L141 QuantifierPusher]: treesize reduction 28, result has 80.1 percent of original size [2021-02-23 18:19:42,033 WARN L147 QuantifierPusher]: treesize reduction 28, result has 80.1 percent of original size 113 [2021-02-23 18:19:42,036 WARN L141 QuantifierPusher]: treesize reduction 26, result has 81.3 percent of original size [2021-02-23 18:19:42,040 WARN L147 QuantifierPusher]: treesize reduction 26, result has 81.3 percent of original size 113 [2021-02-23 18:19:42,045 WARN L141 QuantifierPusher]: treesize reduction 28, result has 80.1 percent of original size [2021-02-23 18:19:42,046 WARN L147 QuantifierPusher]: treesize reduction 28, result has 80.1 percent of original size 113 [2021-02-23 18:19:42,049 WARN L141 QuantifierPusher]: treesize reduction 48, result has 70.2 percent of original size [2021-02-23 18:19:42,051 WARN L147 QuantifierPusher]: treesize reduction 48, result has 70.2 percent of original size 113 [2021-02-23 18:19:42,053 WARN L141 QuantifierPusher]: treesize reduction 37, result has 75.3 percent of original size [2021-02-23 18:19:42,055 WARN L147 QuantifierPusher]: treesize reduction 37, result has 75.3 percent of original size 113 [2021-02-23 18:19:42,057 WARN L141 QuantifierPusher]: treesize reduction 27, result has 80.7 percent of original size [2021-02-23 18:19:42,058 WARN L147 QuantifierPusher]: treesize reduction 27, result has 80.7 percent of original size 113 [2021-02-23 18:19:42,061 WARN L141 QuantifierPusher]: treesize reduction 12, result has 92.5 percent of original size [2021-02-23 18:19:42,063 WARN L147 QuantifierPusher]: treesize reduction 12, result has 92.5 percent of original size 147 [2021-02-23 18:19:42,286 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2021-02-23 18:19:42,291 WARN L141 QuantifierPusher]: treesize reduction 26, result has 83.2 percent of original size [2021-02-23 18:19:42,295 WARN L147 QuantifierPusher]: treesize reduction 26, result has 83.2 percent of original size 129 [2021-02-23 18:19:42,297 WARN L141 QuantifierPusher]: treesize reduction 151, result has 0.7 percent of original size [2021-02-23 18:19:42,297 WARN L147 QuantifierPusher]: treesize reduction 151, result has 0.7 percent of original size 1 [2021-02-23 18:19:42,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:42,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:42,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:42,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:42,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126235666] [2021-02-23 18:19:42,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:19:42,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-02-23 18:19:42,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336376974] [2021-02-23 18:19:42,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-23 18:19:42,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:19:42,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-23 18:19:42,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=275, Unknown=0, NotChecked=0, Total=420 [2021-02-23 18:19:42,304 INFO L87 Difference]: Start difference. First operand 1929 states and 2477 transitions. Second operand 18 states. [2021-02-23 18:19:42,630 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-23 18:19:42,772 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-23 18:19:42,895 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-23 18:19:43,026 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-23 18:19:43,158 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-23 18:19:43,298 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-23 18:19:43,473 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-02-23 18:19:43,704 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-02-23 18:19:43,924 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-02-23 18:19:44,229 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-02-23 18:19:44,718 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-02-23 18:19:51,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:19:51,898 INFO L93 Difference]: Finished difference Result 6625 states and 8747 transitions. [2021-02-23 18:19:51,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-02-23 18:19:51,898 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 159 [2021-02-23 18:19:51,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:19:51,945 INFO L225 Difference]: With dead ends: 6625 [2021-02-23 18:19:51,945 INFO L226 Difference]: Without dead ends: 4726 [2021-02-23 18:19:51,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=465, Invalid=1017, Unknown=0, NotChecked=0, Total=1482 [2021-02-23 18:19:51,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2021-02-23 18:19:52,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 4045. [2021-02-23 18:19:52,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4045 states. [2021-02-23 18:19:52,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4045 states to 4045 states and 5129 transitions. [2021-02-23 18:19:52,914 INFO L78 Accepts]: Start accepts. Automaton has 4045 states and 5129 transitions. Word has length 159 [2021-02-23 18:19:52,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:19:52,915 INFO L480 AbstractCegarLoop]: Abstraction has 4045 states and 5129 transitions. [2021-02-23 18:19:52,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-02-23 18:19:52,915 INFO L276 IsEmpty]: Start isEmpty. Operand 4045 states and 5129 transitions. [2021-02-23 18:19:52,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-23 18:19:52,931 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:19:52,932 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:19:52,932 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 18:19:52,932 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:19:52,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:19:52,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1925381628, now seen corresponding path program 1 times [2021-02-23 18:19:52,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:19:52,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [859005722] [2021-02-23 18:19:52,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:19:52,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:52,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:52,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:52,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:53,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:53,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:53,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:53,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:53,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:53,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:53,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:53,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:53,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:53,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:53,179 WARN L141 QuantifierPusher]: treesize reduction 17, result has 91.1 percent of original size [2021-02-23 18:19:53,183 WARN L147 QuantifierPusher]: treesize reduction 17, result has 91.1 percent of original size 173 [2021-02-23 18:19:53,269 WARN L141 QuantifierPusher]: treesize reduction 17, result has 91.1 percent of original size [2021-02-23 18:19:53,273 WARN L147 QuantifierPusher]: treesize reduction 17, result has 91.1 percent of original size 173 [2021-02-23 18:19:53,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:19:53,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:19:53,392 WARN L141 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size [2021-02-23 18:19:53,396 WARN L147 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size 177 [2021-02-23 18:19:53,495 WARN L141 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size [2021-02-23 18:19:53,499 WARN L147 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size 177 [2021-02-23 18:19:53,592 WARN L141 QuantifierPusher]: treesize reduction 12, result has 93.7 percent of original size [2021-02-23 18:19:53,595 WARN L147 QuantifierPusher]: treesize reduction 12, result has 93.7 percent of original size 177 [2021-02-23 18:19:53,692 WARN L141 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size [2021-02-23 18:19:53,695 WARN L147 QuantifierPusher]: treesize reduction 176, result has 50.1 percent of original size 177 [2021-02-23 18:19:53,696 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 18:19:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 18:19:53,796 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 18:19:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 18:19:53,905 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 18:19:54,029 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 18:19:54,029 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 18:19:54,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 18:19:54,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:19:54 BoogieIcfgContainer [2021-02-23 18:19:54,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 18:19:54,090 INFO L168 Benchmark]: Toolchain (without parser) took 33601.57 ms. Allocated memory was 152.0 MB in the beginning and 596.6 MB in the end (delta: 444.6 MB). Free memory was 127.0 MB in the beginning and 364.1 MB in the end (delta: -237.1 MB). Peak memory consumption was 208.2 MB. Max. memory is 8.0 GB. [2021-02-23 18:19:54,090 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 152.0 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:19:54,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 771.52 ms. Allocated memory is still 152.0 MB. Free memory was 125.9 MB in the beginning and 130.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 8.0 GB. [2021-02-23 18:19:54,091 INFO L168 Benchmark]: Boogie Preprocessor took 115.39 ms. Allocated memory is still 152.0 MB. Free memory was 130.0 MB in the beginning and 125.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 18:19:54,091 INFO L168 Benchmark]: RCFGBuilder took 1662.04 ms. Allocated memory was 152.0 MB in the beginning and 199.2 MB in the end (delta: 47.2 MB). Free memory was 125.2 MB in the beginning and 173.9 MB in the end (delta: -48.6 MB). Peak memory consumption was 65.1 MB. Max. memory is 8.0 GB. [2021-02-23 18:19:54,091 INFO L168 Benchmark]: TraceAbstraction took 31033.32 ms. Allocated memory was 199.2 MB in the beginning and 596.6 MB in the end (delta: 397.4 MB). Free memory was 173.3 MB in the beginning and 364.1 MB in the end (delta: -190.8 MB). Peak memory consumption was 207.2 MB. Max. memory is 8.0 GB. [2021-02-23 18:19:54,093 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 152.0 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 771.52 ms. Allocated memory is still 152.0 MB. Free memory was 125.9 MB in the beginning and 130.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 115.39 ms. Allocated memory is still 152.0 MB. Free memory was 130.0 MB in the beginning and 125.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1662.04 ms. Allocated memory was 152.0 MB in the beginning and 199.2 MB in the end (delta: 47.2 MB). Free memory was 125.2 MB in the beginning and 173.9 MB in the end (delta: -48.6 MB). Peak memory consumption was 65.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 31033.32 ms. Allocated memory was 199.2 MB in the beginning and 596.6 MB in the end (delta: 397.4 MB). Free memory was 173.3 MB in the beginning and 364.1 MB in the end (delta: -190.8 MB). Peak memory consumption was 207.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 443]: 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 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 TRUE ((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7))))) [L61] a28 = 11 [L62] a25 = 1 [L63] return 26; [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 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 TRUE ((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1)) [L110] a17 = 7 [L111] a25 = 0 [L112] a11 = 1 [L113] a28 = 10 [L114] a19 = 0 [L115] 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 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 TRUE (((((!(a25==1)&&(a11==1))&&(a28==10))&&!(a19==1))&&(a21==1))&&(a17==7)) [L443] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 539 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.9s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 22.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1170 SDtfs, 6762 SDslu, 1466 SDs, 0 SdLazy, 8238 SolverSat, 817 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4045occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 3 MinimizatonAttempts, 883 StatesRemovedByMinimization, 3 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...