/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:12:24,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:12:24,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:12:24,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 02:12:24,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:12:24,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:12:24,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:12:24,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:12:24,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:12:24,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:12:24,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:12:24,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:12:24,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:12:24,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:12:24,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:12:24,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:12:24,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:12:24,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:12:24,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:12:24,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:12:24,575 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:12:24,598 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:12:24,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:12:24,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:12:24,602 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:12:24,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:12:24,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:12:24,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:12:24,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:12:24,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:12:24,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:12:24,606 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:12:24,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:12:24,607 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:12:24,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:12:24,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:12:24,608 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:12:24,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:12:24,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:12:24,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:12:24,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:12:24,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:12:24,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:12:24,609 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:12:24,610 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:12:25,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:12:25,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:12:25,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:12:25,090 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:12:25,090 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:12:25,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label47.c [2021-02-22 02:12:25,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e9f43203/43c937b78ff34996a4d44475a01473c7/FLAG0017faf2d [2021-02-22 02:12:25,875 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:12:25,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label47.c [2021-02-22 02:12:25,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e9f43203/43c937b78ff34996a4d44475a01473c7/FLAG0017faf2d [2021-02-22 02:12:26,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e9f43203/43c937b78ff34996a4d44475a01473c7 [2021-02-22 02:12:26,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:12:26,124 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:12:26,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:12:26,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:12:26,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:12:26,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:12:26" (1/1) ... [2021-02-22 02:12:26,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@410af52e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:12:26, skipping insertion in model container [2021-02-22 02:12:26,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:12:26" (1/1) ... [2021-02-22 02:12:26,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:12:26,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:12:26,535 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_label47.c[17583,17596] [2021-02-22 02:12:26,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:12:26,599 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:12:26,673 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_label47.c[17583,17596] [2021-02-22 02:12:26,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:12:26,766 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:12:26,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:12:26 WrapperNode [2021-02-22 02:12:26,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:12:26,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:12:26,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:12:26,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:12:26,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:12:26" (1/1) ... [2021-02-22 02:12:26,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:12:26" (1/1) ... [2021-02-22 02:12:26,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:12:26" (1/1) ... [2021-02-22 02:12:26,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:12:26" (1/1) ... [2021-02-22 02:12:26,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:12:26" (1/1) ... [2021-02-22 02:12:26,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:12:26" (1/1) ... [2021-02-22 02:12:26,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:12:26" (1/1) ... [2021-02-22 02:12:26,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:12:26,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:12:26,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:12:26,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:12:26,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:12:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:12:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:12:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:12:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:12:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-22 02:12:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:12:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-22 02:12:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:12:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:12:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:12:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:12:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:12:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-22 02:12:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:12:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:12:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:12:27,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:12:27,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:12:27,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:12:27,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:12:28,472 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:12:28,472 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 02:12:28,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:12:28 BoogieIcfgContainer [2021-02-22 02:12:28,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:12:28,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:12:28,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:12:28,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:12:28,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:12:26" (1/3) ... [2021-02-22 02:12:28,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ebaa293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:12:28, skipping insertion in model container [2021-02-22 02:12:28,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:12:26" (2/3) ... [2021-02-22 02:12:28,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ebaa293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:12:28, skipping insertion in model container [2021-02-22 02:12:28,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:12:28" (3/3) ... [2021-02-22 02:12:28,483 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label47.c [2021-02-22 02:12:28,490 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:12:28,498 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:12:28,516 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:12:28,540 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:12:28,540 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:12:28,540 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:12:28,540 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:12:28,540 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:12:28,541 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:12:28,541 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:12:28,541 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:12:28,566 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states. [2021-02-22 02:12:28,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-02-22 02:12:28,590 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:12:28,591 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] [2021-02-22 02:12:28,591 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:12:28,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:12:28,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1072698625, now seen corresponding path program 1 times [2021-02-22 02:12:28,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:12:28,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361189891] [2021-02-22 02:12:28,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:12:28,684 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:12:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:12:29,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:29,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:12:29,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:29,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:12:29,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:29,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:12:29,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:29,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:12:29,225 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-22 02:12:29,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:12:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:12:29,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:29,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:12:29,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:29,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:12:29,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:12:29,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361189891] [2021-02-22 02:12:29,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:12:29,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 02:12:29,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203184694] [2021-02-22 02:12:29,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 02:12:29,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:12:29,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 02:12:29,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:12:29,349 INFO L87 Difference]: Start difference. First operand 536 states. Second operand 4 states. [2021-02-22 02:12:32,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:12:32,210 INFO L93 Difference]: Finished difference Result 1405 states and 1859 transitions. [2021-02-22 02:12:32,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 02:12:32,212 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 141 [2021-02-22 02:12:32,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:12:32,250 INFO L225 Difference]: With dead ends: 1405 [2021-02-22 02:12:32,250 INFO L226 Difference]: Without dead ends: 796 [2021-02-22 02:12:32,263 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 [2021-02-22 02:12:32,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2021-02-22 02:12:32,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 673. [2021-02-22 02:12:32,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2021-02-22 02:12:32,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 821 transitions. [2021-02-22 02:12:32,501 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 821 transitions. Word has length 141 [2021-02-22 02:12:32,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:12:32,506 INFO L480 AbstractCegarLoop]: Abstraction has 673 states and 821 transitions. [2021-02-22 02:12:32,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 02:12:32,506 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 821 transitions. [2021-02-22 02:12:32,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-22 02:12:32,524 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:12:32,524 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-22 02:12:32,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:12:32,525 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:12:32,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:12:32,526 INFO L82 PathProgramCache]: Analyzing trace with hash 38487184, now seen corresponding path program 1 times [2021-02-22 02:12:32,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:12:32,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753626174] [2021-02-22 02:12:32,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:12:32,591 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:32,612 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:32,621 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:32,627 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:32,661 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:12:32,672 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:12:32,679 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:12:32,684 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:12:32,688 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:32,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:32,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:32,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:32,697 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:12:32,700 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:32,705 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:32,708 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:32,713 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:32,742 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:12:32,745 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:12:32,749 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:12:32,751 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:12:32,752 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:32,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:32,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:32,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:32,758 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:12:32,760 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:32,765 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:32,767 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:32,772 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:32,802 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:12:32,804 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:12:32,807 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:12:32,809 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:12:32,811 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:32,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:32,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:32,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:32,817 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:12:32,819 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:32,824 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:32,826 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:32,831 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:32,865 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:12:32,868 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:12:32,871 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:12:32,872 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:12:32,874 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:32,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:32,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:32,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:32,880 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:12:32,883 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:32,888 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:32,891 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:32,898 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:32,928 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:12:32,931 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:12:32,936 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:12:32,937 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:12:32,939 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:32,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:32,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:32,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:32,944 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:12:32,946 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:32,951 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:32,954 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:32,959 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:32,988 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:12:32,990 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:12:32,993 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:12:32,995 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:12:32,996 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:32,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:32,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:33,003 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:12:33,003 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:12:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:12:33,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:12:33,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:12:33,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:12:33,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:12:33,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:12:33,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:12:33,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:12:33,288 WARN L141 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-02-22 02:12:33,288 WARN L147 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size 8 [2021-02-22 02:12:33,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:12:33,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:12:33,409 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-22 02:12:33,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:12:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:12:33,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:12:33,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:12:33,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:12:33,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:12:33,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:33,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:12:33,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:12:33,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:33,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:12:33,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:12:33,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:33,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:12:33,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:12:33,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:12:33,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-22 02:12:33,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:12:33,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:12:33,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:33,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-22 02:12:33,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-02-22 02:12:33,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-22 02:12:33,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-22 02:12:33,907 WARN L141 QuantifierPusher]: treesize reduction 23, result has 68.9 percent of original size [2021-02-22 02:12:33,909 WARN L147 QuantifierPusher]: treesize reduction 23, result has 68.9 percent of original size 51 [2021-02-22 02:12:33,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:33,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-02-22 02:12:34,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:34,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-22 02:12:34,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:34,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:12:34,064 WARN L141 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size [2021-02-22 02:12:34,065 WARN L147 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size 30 [2021-02-22 02:12:34,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:34,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:12:34,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:34,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:12:34,159 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size [2021-02-22 02:12:34,160 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size 27 [2021-02-22 02:12:34,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:34,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:12:34,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:34,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:12:34,241 WARN L141 QuantifierPusher]: treesize reduction 26, result has 3.7 percent of original size [2021-02-22 02:12:34,241 WARN L147 QuantifierPusher]: treesize reduction 26, result has 3.7 percent of original size 1 [2021-02-22 02:12:34,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753626174] [2021-02-22 02:12:34,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:12:34,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-02-22 02:12:34,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785135705] [2021-02-22 02:12:34,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-02-22 02:12:34,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:12:34,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-02-22 02:12:34,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2021-02-22 02:12:34,245 INFO L87 Difference]: Start difference. First operand 673 states and 821 transitions. Second operand 21 states. [2021-02-22 02:12:34,607 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2021-02-22 02:12:34,793 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2021-02-22 02:12:34,989 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2021-02-22 02:12:35,226 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 96 [2021-02-22 02:12:35,451 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 96 [2021-02-22 02:12:35,689 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 98 [2021-02-22 02:12:35,829 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-22 02:12:36,745 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-22 02:12:43,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:12:43,134 INFO L93 Difference]: Finished difference Result 2351 states and 3065 transitions. [2021-02-22 02:12:43,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-22 02:12:43,135 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 159 [2021-02-22 02:12:43,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:12:43,148 INFO L225 Difference]: With dead ends: 2351 [2021-02-22 02:12:43,149 INFO L226 Difference]: Without dead ends: 1708 [2021-02-22 02:12:43,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=323, Invalid=1237, Unknown=0, NotChecked=0, Total=1560 [2021-02-22 02:12:43,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2021-02-22 02:12:43,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1602. [2021-02-22 02:12:43,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1602 states. [2021-02-22 02:12:43,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1602 states to 1602 states and 2091 transitions. [2021-02-22 02:12:43,559 INFO L78 Accepts]: Start accepts. Automaton has 1602 states and 2091 transitions. Word has length 159 [2021-02-22 02:12:43,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:12:43,561 INFO L480 AbstractCegarLoop]: Abstraction has 1602 states and 2091 transitions. [2021-02-22 02:12:43,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2021-02-22 02:12:43,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1602 states and 2091 transitions. [2021-02-22 02:12:43,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-02-22 02:12:43,569 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:12:43,570 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:12:43,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-22 02:12:43,571 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:12:43,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:12:43,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1498402067, now seen corresponding path program 1 times [2021-02-22 02:12:43,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:12:43,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825471709] [2021-02-22 02:12:43,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:12:43,602 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-02-22 02:12:43,616 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:43,623 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:43,626 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:43,632 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:43,673 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:12:43,676 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:12:43,682 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:12:43,684 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:12:43,686 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:43,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:43,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:43,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:43,696 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:12:43,700 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:43,706 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:43,709 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:43,720 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:43,753 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:12:43,755 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:12:43,759 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:12:43,762 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:12:43,764 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:43,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:43,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:43,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:43,773 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:12:43,775 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:43,780 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:43,783 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:43,787 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:43,817 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:12:43,819 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:12:43,821 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:12:43,822 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:12:43,824 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:43,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:43,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:43,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:43,837 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:12:43,839 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:43,843 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:43,845 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:43,848 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:43,874 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:12:43,876 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:12:43,879 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:12:43,881 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:12:43,884 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:43,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:43,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:43,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:43,890 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:12:43,892 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:43,896 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:43,898 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:43,911 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:43,938 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:12:43,942 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:12:43,947 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:12:43,949 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:12:43,950 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:43,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:43,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:43,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:43,957 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:12:43,959 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:43,963 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:43,967 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:43,971 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:43,999 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:12:44,001 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:12:44,004 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:12:44,005 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:12:44,007 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:44,012 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:12:44,015 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:44,019 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:44,021 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:44,032 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:44,061 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:12:44,063 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:12:44,065 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:12:44,069 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:12:44,076 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:44,085 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:12:44,086 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:44,089 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:44,092 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:12:44,097 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:12:44,123 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:12:44,125 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:12:44,127 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:12:44,128 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:12:44,129 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:12:44,136 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:12:44,136 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:12:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:12:44,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:12:44,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:12:44,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:12:44,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:12:44,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:12:44,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:12:44,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:12:44,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:12:44,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:12:44,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:12:44,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:12:44,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 02:12:44,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:12:44,537 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-22 02:12:44,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:12:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:12:44,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:12:44,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:12:44,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:12:44,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:12:44,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:12:44,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:12:44,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:12:44,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:12:44,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:12:44,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:12:44,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:12:44,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:12:44,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:12:44,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:12:44,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:12:44,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-02-22 02:12:44,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:12:44,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-02-22 02:12:44,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-22 02:12:44,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:12:44,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-02-22 02:12:44,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-02-22 02:12:44,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:12:44,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-02-22 02:12:44,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-02-22 02:12:44,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:12:44,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:12:44,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-02-22 02:12:44,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-02-22 02:12:44,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:44,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:44,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-02-22 02:12:44,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-02-22 02:12:45,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:45,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-02-22 02:12:45,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-02-22 02:12:45,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:45,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-02-22 02:12:45,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-02-22 02:12:45,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:45,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-02-22 02:12:45,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-02-22 02:12:45,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:45,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-02-22 02:12:45,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-02-22 02:12:45,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:45,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-02-22 02:12:45,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-02-22 02:12:45,490 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2021-02-22 02:12:45,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:45,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-02-22 02:12:45,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-22 02:12:45,703 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2021-02-22 02:12:45,708 WARN L141 QuantifierPusher]: treesize reduction 127, result has 36.8 percent of original size [2021-02-22 02:12:45,711 WARN L147 QuantifierPusher]: treesize reduction 127, result has 36.8 percent of original size 74 [2021-02-22 02:12:45,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:45,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:12:45,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:12:45,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:45,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:45,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:12:45,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:12:46,517 WARN L202 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-02-22 02:12:46,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:46,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:46,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:46,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:12:46,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:12:47,305 WARN L202 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-22 02:12:47,308 WARN L141 QuantifierPusher]: treesize reduction -2, result has 106.1 percent of original size [2021-02-22 02:12:47,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:12:47,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:47,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:12:47,310 WARN L147 QuantifierPusher]: treesize reduction -2, result has 106.1 percent of original size 35 [2021-02-22 02:12:47,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:47,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:12:47,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:47,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:12:47,436 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size [2021-02-22 02:12:47,437 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size 27 [2021-02-22 02:12:47,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:47,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:12:47,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:12:47,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:12:47,617 WARN L141 QuantifierPusher]: treesize reduction 39, result has 2.5 percent of original size [2021-02-22 02:12:47,623 WARN L147 QuantifierPusher]: treesize reduction 39, result has 2.5 percent of original size 1 [2021-02-22 02:12:47,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825471709] [2021-02-22 02:12:47,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:12:47,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-22 02:12:47,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768127827] [2021-02-22 02:12:47,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-22 02:12:47,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:12:47,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-22 02:12:47,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2021-02-22 02:12:47,625 INFO L87 Difference]: Start difference. First operand 1602 states and 2091 transitions. Second operand 25 states. [2021-02-22 02:12:48,057 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 90 [2021-02-22 02:12:48,258 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-02-22 02:12:48,467 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 90 [2021-02-22 02:12:48,693 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 96 [2021-02-22 02:12:48,918 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 96 [2021-02-22 02:12:49,158 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 98 [2021-02-22 02:12:49,477 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 118 [2021-02-22 02:12:49,913 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 124 [2021-02-22 02:12:50,085 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 49 [2021-02-22 02:12:50,261 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-22 02:12:51,838 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-02-22 02:12:52,191 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-22 02:12:52,466 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-22 02:12:52,950 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 154 [2021-02-22 02:12:53,186 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:12:55,299 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 159 [2021-02-22 02:13:04,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:13:04,068 INFO L93 Difference]: Finished difference Result 6856 states and 9600 transitions. [2021-02-22 02:13:04,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-22 02:13:04,069 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 162 [2021-02-22 02:13:04,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:13:04,115 INFO L225 Difference]: With dead ends: 6856 [2021-02-22 02:13:04,116 INFO L226 Difference]: Without dead ends: 5284 [2021-02-22 02:13:04,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 919 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=559, Invalid=2411, Unknown=0, NotChecked=0, Total=2970 [2021-02-22 02:13:04,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5284 states. [2021-02-22 02:13:05,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5284 to 4286. [2021-02-22 02:13:05,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4286 states. [2021-02-22 02:13:05,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4286 states to 4286 states and 5836 transitions. [2021-02-22 02:13:05,401 INFO L78 Accepts]: Start accepts. Automaton has 4286 states and 5836 transitions. Word has length 162 [2021-02-22 02:13:05,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:13:05,402 INFO L480 AbstractCegarLoop]: Abstraction has 4286 states and 5836 transitions. [2021-02-22 02:13:05,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-22 02:13:05,402 INFO L276 IsEmpty]: Start isEmpty. Operand 4286 states and 5836 transitions. [2021-02-22 02:13:05,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-02-22 02:13:05,421 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:13:05,422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:13:05,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-22 02:13:05,422 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:13:05,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:13:05,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1455144181, now seen corresponding path program 1 times [2021-02-22 02:13:05,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:13:05,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844297037] [2021-02-22 02:13:05,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:13:05,450 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 19