/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/loop-invgen/sendmail-close-angle.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:48:53,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:48:53,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:48:53,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:48:53,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:48:53,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:48:53,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:48:53,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:48:53,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:48:53,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:48:53,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:48:53,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:48:53,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:48:53,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:48:53,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:48:53,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:48:53,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:48:53,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:48:53,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:48:53,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:48:53,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:48:53,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:48:53,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:48:53,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:48:53,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:48:53,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:48:53,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:48:53,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:48:53,375 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:48:53,399 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:48:53,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:48:53,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:48:53,406 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:48:53,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:48:53,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:48:53,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:48:53,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:48:53,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:48:53,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:48:53,409 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:48:53,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:48:53,410 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:48:53,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:48:53,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:48:53,411 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:48:53,411 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:48:53,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:48:53,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:48:53,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:48:53,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:48:53,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:48:53,413 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:48:53,413 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:48:53,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:48:53,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:48:53,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:48:53,878 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:48:53,879 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:48:53,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/sendmail-close-angle.i [2021-02-24 04:48:53,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0afb4cc58/e8feab00e55644ebb33c9f7290b7f066/FLAGfc222f9b6 [2021-02-24 04:48:54,585 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:48:54,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/sendmail-close-angle.i [2021-02-24 04:48:54,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0afb4cc58/e8feab00e55644ebb33c9f7290b7f066/FLAGfc222f9b6 [2021-02-24 04:48:54,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0afb4cc58/e8feab00e55644ebb33c9f7290b7f066 [2021-02-24 04:48:54,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:48:54,981 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:48:54,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:48:54,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:48:54,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:48:54,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:48:54" (1/1) ... [2021-02-24 04:48:54,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9e8f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:54, skipping insertion in model container [2021-02-24 04:48:54,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:48:54" (1/1) ... [2021-02-24 04:48:54,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:48:55,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:48:55,173 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/sendmail-close-angle.i[893,906] [2021-02-24 04:48:55,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:48:55,199 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:48:55,215 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/sendmail-close-angle.i[893,906] [2021-02-24 04:48:55,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:48:55,239 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:48:55,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:55 WrapperNode [2021-02-24 04:48:55,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:48:55,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:48:55,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:48:55,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:48:55,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:55" (1/1) ... [2021-02-24 04:48:55,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:55" (1/1) ... [2021-02-24 04:48:55,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:55" (1/1) ... [2021-02-24 04:48:55,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:55" (1/1) ... [2021-02-24 04:48:55,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:55" (1/1) ... [2021-02-24 04:48:55,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:55" (1/1) ... [2021-02-24 04:48:55,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:55" (1/1) ... [2021-02-24 04:48:55,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:48:55,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:48:55,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:48:55,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:48:55,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:48:55,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:48:55,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:48:55,397 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:48:55,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 04:48:55,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 04:48:55,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:48:55,398 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:48:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:48:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 04:48:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 04:48:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:48:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:48:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 04:48:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 04:48:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:48:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:48:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:48:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:48:55,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:48:55,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:48:55,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:48:55,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:48:55,828 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:48:55,828 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 04:48:55,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:48:55 BoogieIcfgContainer [2021-02-24 04:48:55,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:48:55,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:48:55,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:48:55,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:48:55,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:48:54" (1/3) ... [2021-02-24 04:48:55,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b869018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:48:55, skipping insertion in model container [2021-02-24 04:48:55,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:55" (2/3) ... [2021-02-24 04:48:55,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b869018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:48:55, skipping insertion in model container [2021-02-24 04:48:55,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:48:55" (3/3) ... [2021-02-24 04:48:55,840 INFO L111 eAbstractionObserver]: Analyzing ICFG sendmail-close-angle.i [2021-02-24 04:48:55,847 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:48:55,852 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:48:55,883 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:48:55,940 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:48:55,940 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:48:55,940 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:48:55,941 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:48:55,941 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:48:55,942 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:48:55,942 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:48:55,942 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:48:55,971 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2021-02-24 04:48:55,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-24 04:48:55,983 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:55,984 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] [2021-02-24 04:48:55,985 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:55,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:55,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1576659073, now seen corresponding path program 1 times [2021-02-24 04:48:56,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:56,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814514741] [2021-02-24 04:48:56,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:56,119 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:56,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:56,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:56,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:56,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:56,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:56,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:56,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:56,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:48:56,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814514741] [2021-02-24 04:48:56,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:56,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 04:48:56,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356897830] [2021-02-24 04:48:56,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 04:48:56,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:56,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 04:48:56,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 04:48:56,547 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 3 states. [2021-02-24 04:48:56,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:56,832 INFO L93 Difference]: Finished difference Result 99 states and 130 transitions. [2021-02-24 04:48:56,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 04:48:56,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2021-02-24 04:48:56,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:56,856 INFO L225 Difference]: With dead ends: 99 [2021-02-24 04:48:56,857 INFO L226 Difference]: Without dead ends: 54 [2021-02-24 04:48:56,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 04:48:56,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-02-24 04:48:56,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-02-24 04:48:56,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-02-24 04:48:56,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2021-02-24 04:48:56,966 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 31 [2021-02-24 04:48:56,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:56,967 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2021-02-24 04:48:56,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 04:48:56,967 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2021-02-24 04:48:56,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-24 04:48:56,972 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:56,972 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] [2021-02-24 04:48:56,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:48:56,973 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:56,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:56,974 INFO L82 PathProgramCache]: Analyzing trace with hash 638442697, now seen corresponding path program 1 times [2021-02-24 04:48:56,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:56,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154030826] [2021-02-24 04:48:56,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:56,987 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:57,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:57,160 WARN L141 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-02-24 04:48:57,161 WARN L147 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size 3 [2021-02-24 04:48:57,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:57,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:57,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:57,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:57,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:57,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:48:57,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154030826] [2021-02-24 04:48:57,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:57,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:48:57,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860279822] [2021-02-24 04:48:57,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:48:57,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:57,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:48:57,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:48:57,237 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand 6 states. [2021-02-24 04:48:57,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:57,602 INFO L93 Difference]: Finished difference Result 73 states and 86 transitions. [2021-02-24 04:48:57,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:48:57,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2021-02-24 04:48:57,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:57,605 INFO L225 Difference]: With dead ends: 73 [2021-02-24 04:48:57,606 INFO L226 Difference]: Without dead ends: 71 [2021-02-24 04:48:57,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:48:57,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-02-24 04:48:57,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 65. [2021-02-24 04:48:57,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2021-02-24 04:48:57,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2021-02-24 04:48:57,632 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 33 [2021-02-24 04:48:57,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:57,633 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-02-24 04:48:57,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:48:57,633 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2021-02-24 04:48:57,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-02-24 04:48:57,635 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:57,635 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:57,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:48:57,635 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:57,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:57,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1444285217, now seen corresponding path program 1 times [2021-02-24 04:48:57,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:57,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590478754] [2021-02-24 04:48:57,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:57,640 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:57,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:57,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:57,697 WARN L141 QuantifierPusher]: treesize reduction 1, result has 91.7 percent of original size [2021-02-24 04:48:57,698 WARN L147 QuantifierPusher]: treesize reduction 1, result has 91.7 percent of original size 11 [2021-02-24 04:48:57,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:57,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:57,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:57,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:57,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:57,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:48:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:57,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:57,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:48:57,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590478754] [2021-02-24 04:48:57,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:57,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 04:48:57,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125872487] [2021-02-24 04:48:57,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 04:48:57,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:57,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 04:48:57,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-24 04:48:57,764 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand 7 states. [2021-02-24 04:48:58,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:58,139 INFO L93 Difference]: Finished difference Result 77 states and 89 transitions. [2021-02-24 04:48:58,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 04:48:58,139 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2021-02-24 04:48:58,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:58,141 INFO L225 Difference]: With dead ends: 77 [2021-02-24 04:48:58,141 INFO L226 Difference]: Without dead ends: 75 [2021-02-24 04:48:58,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:48:58,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-02-24 04:48:58,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2021-02-24 04:48:58,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2021-02-24 04:48:58,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions. [2021-02-24 04:48:58,162 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 83 transitions. Word has length 38 [2021-02-24 04:48:58,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:58,163 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 83 transitions. [2021-02-24 04:48:58,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 04:48:58,163 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 83 transitions. [2021-02-24 04:48:58,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-24 04:48:58,165 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:58,165 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:58,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:48:58,166 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:58,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:58,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1274214211, now seen corresponding path program 1 times [2021-02-24 04:48:58,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:58,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61146205] [2021-02-24 04:48:58,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:58,169 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:58,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:58,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:58,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:58,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:58,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:58,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:58,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:58,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:58,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:58,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:48:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:58,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:58,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-02-24 04:48:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:58,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:58,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:48:58,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61146205] [2021-02-24 04:48:58,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:58,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 04:48:58,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050473903] [2021-02-24 04:48:58,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 04:48:58,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:58,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 04:48:58,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:48:58,352 INFO L87 Difference]: Start difference. First operand 71 states and 83 transitions. Second operand 8 states. [2021-02-24 04:48:58,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:58,842 INFO L93 Difference]: Finished difference Result 84 states and 96 transitions. [2021-02-24 04:48:58,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 04:48:58,843 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2021-02-24 04:48:58,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:58,845 INFO L225 Difference]: With dead ends: 84 [2021-02-24 04:48:58,845 INFO L226 Difference]: Without dead ends: 82 [2021-02-24 04:48:58,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-02-24 04:48:58,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-02-24 04:48:58,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2021-02-24 04:48:58,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2021-02-24 04:48:58,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2021-02-24 04:48:58,865 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 91 transitions. Word has length 46 [2021-02-24 04:48:58,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:58,865 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 91 transitions. [2021-02-24 04:48:58,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 04:48:58,866 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 91 transitions. [2021-02-24 04:48:58,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-24 04:48:58,867 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:58,868 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:58,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:48:58,868 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:58,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:58,869 INFO L82 PathProgramCache]: Analyzing trace with hash 71717099, now seen corresponding path program 1 times [2021-02-24 04:48:58,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:58,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353046644] [2021-02-24 04:48:58,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:58,872 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:58,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:58,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:58,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:48:58,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:48:58,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:48:58,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:58,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:58,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:58,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:58,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:59,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:59,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:59,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:48:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:59,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:59,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:59,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-02-24 04:48:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:59,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:59,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:59,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-02-24 04:48:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:59,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:59,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:59,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:48:59,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353046644] [2021-02-24 04:48:59,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:59,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 04:48:59,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000883410] [2021-02-24 04:48:59,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 04:48:59,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:59,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 04:48:59,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-02-24 04:48:59,064 INFO L87 Difference]: Start difference. First operand 79 states and 91 transitions. Second operand 9 states. [2021-02-24 04:48:59,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:59,606 INFO L93 Difference]: Finished difference Result 88 states and 99 transitions. [2021-02-24 04:48:59,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 04:48:59,607 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2021-02-24 04:48:59,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:59,610 INFO L225 Difference]: With dead ends: 88 [2021-02-24 04:48:59,610 INFO L226 Difference]: Without dead ends: 70 [2021-02-24 04:48:59,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2021-02-24 04:48:59,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-02-24 04:48:59,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2021-02-24 04:48:59,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-02-24 04:48:59,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2021-02-24 04:48:59,629 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 51 [2021-02-24 04:48:59,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:59,630 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2021-02-24 04:48:59,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 04:48:59,630 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2021-02-24 04:48:59,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-02-24 04:48:59,631 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:59,632 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:59,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 04:48:59,632 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:59,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:59,633 INFO L82 PathProgramCache]: Analyzing trace with hash -782704161, now seen corresponding path program 1 times [2021-02-24 04:48:59,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:59,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304800546] [2021-02-24 04:48:59,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:59,635 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:59,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:59,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:59,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:59,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:59,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:59,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:59,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:59,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:59,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:59,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:59,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:59,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:59,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:59,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:59,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:59,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:59,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:59,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-24 04:48:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:59,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:59,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:59,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-24 04:48:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:59,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:59,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:59,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:48:59,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304800546] [2021-02-24 04:48:59,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:59,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 04:48:59,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529889709] [2021-02-24 04:48:59,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 04:48:59,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:59,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 04:48:59,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:48:59,743 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand 8 states. [2021-02-24 04:49:00,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:49:00,323 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2021-02-24 04:49:00,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 04:49:00,324 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2021-02-24 04:49:00,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:49:00,326 INFO L225 Difference]: With dead ends: 101 [2021-02-24 04:49:00,326 INFO L226 Difference]: Without dead ends: 99 [2021-02-24 04:49:00,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-02-24 04:49:00,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-02-24 04:49:00,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 79. [2021-02-24 04:49:00,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2021-02-24 04:49:00,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2021-02-24 04:49:00,349 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 50 [2021-02-24 04:49:00,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:49:00,349 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2021-02-24 04:49:00,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 04:49:00,349 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2021-02-24 04:49:00,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-02-24 04:49:00,351 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:49:00,351 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:49:00,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 04:49:00,351 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:49:00,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:49:00,352 INFO L82 PathProgramCache]: Analyzing trace with hash 51019273, now seen corresponding path program 1 times [2021-02-24 04:49:00,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:49:00,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1591729691] [2021-02-24 04:49:00,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:49:00,355 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:49:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:00,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:00,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:00,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:00,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:00,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:00,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:00,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:00,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:49:00,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:00,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:49:00,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:00,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:49:00,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:00,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:49:00,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:00,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:49:00,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:00,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:00,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:49:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:00,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:00,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:00,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-24 04:49:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:00,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:00,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:00,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-24 04:49:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:00,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:00,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:00,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:49:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:00,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:00,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:00,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:49:00,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1591729691] [2021-02-24 04:49:00,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:49:00,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 04:49:00,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171465330] [2021-02-24 04:49:00,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 04:49:00,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:49:00,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 04:49:00,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:49:00,508 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 10 states. [2021-02-24 04:49:01,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:49:01,163 INFO L93 Difference]: Finished difference Result 105 states and 120 transitions. [2021-02-24 04:49:01,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 04:49:01,164 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2021-02-24 04:49:01,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:49:01,166 INFO L225 Difference]: With dead ends: 105 [2021-02-24 04:49:01,166 INFO L226 Difference]: Without dead ends: 103 [2021-02-24 04:49:01,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2021-02-24 04:49:01,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-02-24 04:49:01,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 84. [2021-02-24 04:49:01,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2021-02-24 04:49:01,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2021-02-24 04:49:01,188 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 55 [2021-02-24 04:49:01,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:49:01,189 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2021-02-24 04:49:01,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 04:49:01,189 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2021-02-24 04:49:01,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-24 04:49:01,190 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:49:01,191 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 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] [2021-02-24 04:49:01,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 04:49:01,191 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:49:01,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:49:01,192 INFO L82 PathProgramCache]: Analyzing trace with hash 312752434, now seen corresponding path program 1 times [2021-02-24 04:49:01,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:49:01,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1871973747] [2021-02-24 04:49:01,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:49:01,238 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-02-24 04:49:01,254 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-02-24 04:49:01,262 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-02-24 04:49:01,265 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-02-24 04:49:01,289 WARN L141 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-02-24 04:49:01,304 INFO L723 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2021-02-24 04:49:01,309 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:01,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-02-24 04:49:01,333 WARN L147 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size 42 [2021-02-24 04:49:01,342 WARN L141 QuantifierPusher]: treesize reduction 19, result has 81.7 percent of original size [2021-02-24 04:49:01,347 WARN L147 QuantifierPusher]: treesize reduction 19, result has 81.7 percent of original size 85 [2021-02-24 04:49:01,350 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-02-24 04:49:01,353 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-02-24 04:49:01,356 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-02-24 04:49:01,358 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-02-24 04:49:01,375 WARN L141 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-02-24 04:49:01,378 INFO L723 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2021-02-24 04:49:01,380 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:01,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-02-24 04:49:01,395 WARN L147 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size 42 [2021-02-24 04:49:01,401 WARN L141 QuantifierPusher]: treesize reduction 19, result has 82.1 percent of original size [2021-02-24 04:49:01,405 WARN L147 QuantifierPusher]: treesize reduction 19, result has 82.1 percent of original size 87 [2021-02-24 04:49:01,408 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size [2021-02-24 04:49:01,411 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-02-24 04:49:01,413 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size [2021-02-24 04:49:01,416 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-02-24 04:49:01,433 WARN L141 QuantifierPusher]: treesize reduction 48, result has 14.3 percent of original size [2021-02-24 04:49:01,434 WARN L147 QuantifierPusher]: treesize reduction 48, result has 14.3 percent of original size 8 [2021-02-24 04:49:01,437 WARN L141 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-02-24 04:49:01,441 WARN L147 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size 32 [2021-02-24 04:49:01,443 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size [2021-02-24 04:49:01,447 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-02-24 04:49:01,449 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size [2021-02-24 04:49:01,452 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-02-24 04:49:01,471 WARN L141 QuantifierPusher]: treesize reduction 48, result has 14.3 percent of original size [2021-02-24 04:49:01,473 WARN L147 QuantifierPusher]: treesize reduction 48, result has 14.3 percent of original size 8 [2021-02-24 04:49:01,476 WARN L141 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-02-24 04:49:01,479 WARN L147 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size 32 [2021-02-24 04:49:01,480 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:49:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:01,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:01,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:01,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:49:01,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:49:01,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:01,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:01,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:01,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:01,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:49:01,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:49:01,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:01,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:49:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:01,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:01,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:49:01,621 WARN L141 QuantifierPusher]: treesize reduction 8, result has 91.1 percent of original size [2021-02-24 04:49:01,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:01,627 WARN L141 QuantifierPusher]: treesize reduction 13, result has 82.4 percent of original size [2021-02-24 04:49:01,629 WARN L147 QuantifierPusher]: treesize reduction 13, result has 82.4 percent of original size 61 [2021-02-24 04:49:01,631 WARN L147 QuantifierPusher]: treesize reduction 8, result has 91.1 percent of original size 82 [2021-02-24 04:49:01,634 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.8 percent of original size [2021-02-24 04:49:01,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:01,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-24 04:49:01,645 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.8 percent of original size 79 [2021-02-24 04:49:01,647 WARN L141 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-02-24 04:49:01,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:01,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:49:01,651 WARN L147 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size 33 [2021-02-24 04:49:01,712 WARN L141 QuantifierPusher]: treesize reduction 31, result has 56.3 percent of original size [2021-02-24 04:49:01,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:01,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:01,717 WARN L147 QuantifierPusher]: treesize reduction 31, result has 56.3 percent of original size 40 [2021-02-24 04:49:01,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 04:49:01,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:01,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:49:01,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:49:01,814 WARN L141 QuantifierPusher]: treesize reduction 31, result has 53.7 percent of original size [2021-02-24 04:49:01,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:01,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:01,820 WARN L147 QuantifierPusher]: treesize reduction 31, result has 53.7 percent of original size 36 [2021-02-24 04:49:01,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:01,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:49:01,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:49:01,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:49:01,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:49:01,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:49:01,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:49:01,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:01,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:49:01,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:49:01,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:01,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:01,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:49:01,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:49:02,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:49:02,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:49:02,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:49:02,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:49:02,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:49:02,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:49:02,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:49:02,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:49:02,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 04:49:02,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:49:02,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 04:49:02,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:49:02,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 04:49:02,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:49:02,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:49:02,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:49:02,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:49:02,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:49:02,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:49:02,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-02-24 04:49:02,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:49:02,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:49:02,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:49:02,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:49:02,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-02-24 04:49:02,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:49:02,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:49:02,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-02-24 04:49:02,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:49:02,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:49:02,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:49:02,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:49:02,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:49:02,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 04:49:02,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:49:02,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:49:02,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 04:49:02,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:49:02,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:49:02,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-24 04:49:02,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:49:02,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:49:02,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:49:02,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:49:02,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:49:02,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:49:02,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:49:02,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:49:02,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:49:02,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:49:02,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:49:02,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:49:02,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:02,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:49:02,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:49:02,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:02,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:02,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1871973747] [2021-02-24 04:49:02,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:49:02,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-02-24 04:49:02,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368288672] [2021-02-24 04:49:02,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-02-24 04:49:02,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:49:02,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-02-24 04:49:02,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=759, Unknown=0, NotChecked=0, Total=870 [2021-02-24 04:49:02,901 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand 28 states. [2021-02-24 04:49:05,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:49:05,775 INFO L93 Difference]: Finished difference Result 101 states and 115 transitions. [2021-02-24 04:49:05,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-02-24 04:49:05,776 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 63 [2021-02-24 04:49:05,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:49:05,779 INFO L225 Difference]: With dead ends: 101 [2021-02-24 04:49:05,779 INFO L226 Difference]: Without dead ends: 99 [2021-02-24 04:49:05,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 14 SyntacticMatches, 7 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1021 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=442, Invalid=2864, Unknown=0, NotChecked=0, Total=3306 [2021-02-24 04:49:05,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-02-24 04:49:05,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-02-24 04:49:05,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2021-02-24 04:49:05,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2021-02-24 04:49:05,812 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 63 [2021-02-24 04:49:05,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:49:05,813 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2021-02-24 04:49:05,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2021-02-24 04:49:05,813 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2021-02-24 04:49:05,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-02-24 04:49:05,815 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:49:05,815 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 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] [2021-02-24 04:49:05,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 04:49:05,816 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:49:05,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:49:05,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1012670732, now seen corresponding path program 1 times [2021-02-24 04:49:05,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:49:05,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1423561454] [2021-02-24 04:49:05,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:49:05,833 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-02-24 04:49:05,835 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-02-24 04:49:05,837 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-02-24 04:49:05,839 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-02-24 04:49:05,856 WARN L141 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-02-24 04:49:05,857 INFO L723 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2021-02-24 04:49:05,859 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:05,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:05,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:05,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-02-24 04:49:05,867 WARN L147 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size 42 [2021-02-24 04:49:05,871 WARN L141 QuantifierPusher]: treesize reduction 19, result has 82.1 percent of original size [2021-02-24 04:49:05,874 WARN L147 QuantifierPusher]: treesize reduction 19, result has 82.1 percent of original size 87 [2021-02-24 04:49:05,876 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-02-24 04:49:05,878 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-02-24 04:49:05,880 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-02-24 04:49:05,882 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-02-24 04:49:05,897 WARN L141 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-02-24 04:49:05,898 INFO L723 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2021-02-24 04:49:05,900 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:05,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:05,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:05,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-02-24 04:49:05,909 WARN L147 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size 42 [2021-02-24 04:49:05,912 WARN L141 QuantifierPusher]: treesize reduction 19, result has 81.7 percent of original size [2021-02-24 04:49:05,915 WARN L147 QuantifierPusher]: treesize reduction 19, result has 81.7 percent of original size 85 [2021-02-24 04:49:05,917 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size [2021-02-24 04:49:05,919 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-02-24 04:49:05,921 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size [2021-02-24 04:49:05,922 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-02-24 04:49:05,939 WARN L141 QuantifierPusher]: treesize reduction 48, result has 14.3 percent of original size [2021-02-24 04:49:05,941 WARN L147 QuantifierPusher]: treesize reduction 48, result has 14.3 percent of original size 8 [2021-02-24 04:49:05,942 WARN L141 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-02-24 04:49:05,944 WARN L147 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size 32 [2021-02-24 04:49:05,945 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size [2021-02-24 04:49:05,947 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-02-24 04:49:05,948 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size [2021-02-24 04:49:05,950 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-02-24 04:49:05,965 WARN L141 QuantifierPusher]: treesize reduction 48, result has 14.3 percent of original size [2021-02-24 04:49:05,966 WARN L147 QuantifierPusher]: treesize reduction 48, result has 14.3 percent of original size 8 [2021-02-24 04:49:05,968 WARN L141 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-02-24 04:49:05,970 WARN L147 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size 32 [2021-02-24 04:49:05,970 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:49:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:06,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:06,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:06,040 WARN L141 QuantifierPusher]: treesize reduction 8, result has 38.5 percent of original size [2021-02-24 04:49:06,041 WARN L147 QuantifierPusher]: treesize reduction 8, result has 38.5 percent of original size 5 [2021-02-24 04:49:06,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:06,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:06,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:06,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:06,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:06,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:49:06,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:49:06,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:06,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:49:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:06,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:06,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-24 04:49:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:06,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:06,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:49:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:06,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:06,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-24 04:49:06,188 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.8 percent of original size [2021-02-24 04:49:06,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:49:06,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:06,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:06,197 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.8 percent of original size 79 [2021-02-24 04:49:06,204 WARN L141 QuantifierPusher]: treesize reduction 1, result has 98.9 percent of original size [2021-02-24 04:49:06,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:06,212 WARN L147 QuantifierPusher]: treesize reduction 1, result has 98.9 percent of original size 88 [2021-02-24 04:49:06,214 WARN L141 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-02-24 04:49:06,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:49:06,216 WARN L147 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size 35 [2021-02-24 04:49:06,352 WARN L141 QuantifierPusher]: treesize reduction 3, result has 97.3 percent of original size [2021-02-24 04:49:06,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:06,359 WARN L147 QuantifierPusher]: treesize reduction 3, result has 97.3 percent of original size 110 [2021-02-24 04:49:06,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:06,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-02-24 04:49:06,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:06,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-02-24 04:49:06,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-02-24 04:49:06,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:06,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-02-24 04:49:06,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-02-24 04:49:06,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:06,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-02-24 04:49:06,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:06,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-02-24 04:49:06,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-02-24 04:49:06,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-02-24 04:49:06,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:06,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-02-24 04:49:06,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:06,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:06,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:06,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-02-24 04:49:06,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-02-24 04:49:06,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-02-24 04:49:08,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:08,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:08,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:08,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:08,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:08,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:08,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-02-24 04:49:08,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:08,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:08,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:08,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:08,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:08,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:08,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:08,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-02-24 04:49:08,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-02-24 04:49:08,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-02-24 04:49:09,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:09,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-02-24 04:49:09,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:09,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-02-24 04:49:09,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-02-24 04:49:09,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-02-24 04:49:09,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:09,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-02-24 04:49:09,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:09,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-02-24 04:49:09,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-02-24 04:49:09,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-02-24 04:49:09,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:09,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-02-24 04:49:09,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-02-24 04:49:09,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:49:09,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-02-24 04:49:09,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-02-24 04:49:09,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 04:49:09,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:49:09,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 04:49:09,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:49:09,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 04:49:09,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:49:09,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:09,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:09,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 04:49:09,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:49:13,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:13,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 04:49:13,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:49:13,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:13,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:49:13,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:49:13,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:49:13,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:49:13,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 04:49:13,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:49:13,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:49:13,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:49:13,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:13,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:49:13,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:13,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:49:13,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:49:13,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:13,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:49:13,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:49:13,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:13,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:49:13,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-24 04:49:13,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:13,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:13,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:49:13,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:49:17,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:17,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:17,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:17,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:49:17,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:49:17,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:17,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:17,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:17,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:49:17,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:17,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:17,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:49:17,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:49:18,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:18,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:18,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:18,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:49:18,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:49:18,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:18,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:18,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:18,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:49:18,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:49:18,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:18,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:18,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:18,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 04:49:18,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:49:18,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:18,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:18,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:18,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 04:49:18,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:49:18,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:18,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:18,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:18,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 04:49:18,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:49:18,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:18,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:18,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:18,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:49:18,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:49:18,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:18,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:18,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1423561454] [2021-02-24 04:49:18,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:49:18,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-02-24 04:49:18,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87293145] [2021-02-24 04:49:18,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-02-24 04:49:18,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:49:18,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-02-24 04:49:18,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=811, Unknown=5, NotChecked=0, Total=930 [2021-02-24 04:49:18,223 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand 30 states. [2021-02-24 04:49:36,664 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2021-02-24 04:49:43,016 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2021-02-24 04:49:45,482 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2021-02-24 04:49:47,972 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2021-02-24 04:49:48,136 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2021-02-24 04:49:51,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:49:51,040 INFO L93 Difference]: Finished difference Result 115 states and 126 transitions. [2021-02-24 04:49:51,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-02-24 04:49:51,041 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 76 [2021-02-24 04:49:51,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:49:51,047 INFO L225 Difference]: With dead ends: 115 [2021-02-24 04:49:51,047 INFO L226 Difference]: Without dead ends: 113 [2021-02-24 04:49:51,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 18 SyntacticMatches, 9 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1450 ImplicationChecksByTransitivity, 28.8s TimeCoverageRelationStatistics Valid=551, Invalid=3993, Unknown=12, NotChecked=0, Total=4556 [2021-02-24 04:49:51,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-02-24 04:49:51,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 107. [2021-02-24 04:49:51,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-02-24 04:49:51,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 118 transitions. [2021-02-24 04:49:51,099 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 118 transitions. Word has length 76 [2021-02-24 04:49:51,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:49:51,099 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 118 transitions. [2021-02-24 04:49:51,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2021-02-24 04:49:51,099 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 118 transitions. [2021-02-24 04:49:51,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-02-24 04:49:51,101 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:49:51,101 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 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] [2021-02-24 04:49:51,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-24 04:49:51,102 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:49:51,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:49:51,102 INFO L82 PathProgramCache]: Analyzing trace with hash -849361644, now seen corresponding path program 1 times [2021-02-24 04:49:51,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:49:51,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098604223] [2021-02-24 04:49:51,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:49:51,118 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-02-24 04:49:51,120 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-02-24 04:49:51,122 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-02-24 04:49:51,124 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-02-24 04:49:51,142 WARN L141 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-02-24 04:49:51,143 INFO L723 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2021-02-24 04:49:51,145 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:51,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:51,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:51,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-02-24 04:49:51,154 WARN L147 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size 42 [2021-02-24 04:49:51,157 WARN L141 QuantifierPusher]: treesize reduction 19, result has 82.1 percent of original size [2021-02-24 04:49:51,160 WARN L147 QuantifierPusher]: treesize reduction 19, result has 82.1 percent of original size 87 [2021-02-24 04:49:51,161 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size [2021-02-24 04:49:51,163 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-02-24 04:49:51,164 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size [2021-02-24 04:49:51,166 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-02-24 04:49:51,184 WARN L141 QuantifierPusher]: treesize reduction 48, result has 14.3 percent of original size [2021-02-24 04:49:51,185 WARN L147 QuantifierPusher]: treesize reduction 48, result has 14.3 percent of original size 8 [2021-02-24 04:49:51,186 WARN L141 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-02-24 04:49:51,188 WARN L147 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size 32 [2021-02-24 04:49:51,189 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size [2021-02-24 04:49:51,190 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-02-24 04:49:51,191 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size [2021-02-24 04:49:51,193 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-02-24 04:49:51,211 WARN L141 QuantifierPusher]: treesize reduction 48, result has 14.3 percent of original size [2021-02-24 04:49:51,212 WARN L147 QuantifierPusher]: treesize reduction 48, result has 14.3 percent of original size 8 [2021-02-24 04:49:51,214 WARN L141 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-02-24 04:49:51,215 WARN L147 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size 32 [2021-02-24 04:49:51,217 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-02-24 04:49:51,219 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-02-24 04:49:51,221 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-02-24 04:49:51,223 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-02-24 04:49:51,239 WARN L141 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-02-24 04:49:51,240 INFO L723 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2021-02-24 04:49:51,246 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:51,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:51,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:51,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-02-24 04:49:51,253 WARN L147 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size 42 [2021-02-24 04:49:51,256 WARN L141 QuantifierPusher]: treesize reduction 19, result has 81.7 percent of original size [2021-02-24 04:49:51,259 WARN L147 QuantifierPusher]: treesize reduction 19, result has 81.7 percent of original size 85 [2021-02-24 04:49:51,260 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:49:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:49:51,295 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:49:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:49:51,315 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:49:51,345 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 04:49:51,345 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:49:51,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-24 04:49:51,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:49:51 BoogieIcfgContainer [2021-02-24 04:49:51,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:49:51,367 INFO L168 Benchmark]: Toolchain (without parser) took 56399.46 ms. Allocated memory was 164.6 MB in the beginning and 274.7 MB in the end (delta: 110.1 MB). Free memory was 140.6 MB in the beginning and 148.1 MB in the end (delta: -7.5 MB). Peak memory consumption was 103.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:51,367 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 164.6 MB. Free memory is still 138.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:49:51,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.57 ms. Allocated memory is still 164.6 MB. Free memory was 139.5 MB in the beginning and 129.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:51,368 INFO L168 Benchmark]: Boogie Preprocessor took 38.92 ms. Allocated memory is still 164.6 MB. Free memory was 129.7 MB in the beginning and 128.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:51,368 INFO L168 Benchmark]: RCFGBuilder took 549.85 ms. Allocated memory is still 164.6 MB. Free memory was 128.2 MB in the beginning and 142.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:51,368 INFO L168 Benchmark]: TraceAbstraction took 55533.75 ms. Allocated memory was 164.6 MB in the beginning and 274.7 MB in the end (delta: 110.1 MB). Free memory was 142.1 MB in the beginning and 148.1 MB in the end (delta: -6.1 MB). Peak memory consumption was 105.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:51,369 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 164.6 MB. Free memory is still 138.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 257.57 ms. Allocated memory is still 164.6 MB. Free memory was 139.5 MB in the beginning and 129.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.92 ms. Allocated memory is still 164.6 MB. Free memory was 129.7 MB in the beginning and 128.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 549.85 ms. Allocated memory is still 164.6 MB. Free memory was 128.2 MB in the beginning and 142.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 55533.75 ms. Allocated memory was 164.6 MB in the beginning and 274.7 MB in the end (delta: 110.1 MB). Free memory was 142.1 MB in the beginning and 148.1 MB in the end (delta: -6.1 MB). Peak memory consumption was 105.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L26] int in; [L27] int inlen = __VERIFIER_nondet_int(); [L28] int bufferlen = __VERIFIER_nondet_int(); [L29] int buf; [L30] int buflim; [L31] COND TRUE bufferlen >1 [L32] COND TRUE inlen > 0 [L33] COND TRUE bufferlen < inlen [L34] buf = 0 [L35] in = 0 [L36] buflim = bufferlen - 2 [L37] COND TRUE __VERIFIER_nondet_int() [L39] COND FALSE !(buf == buflim) [L41] CALL __VERIFIER_assert(0<=buf) [L18] COND FALSE !(!(cond)) [L41] RET __VERIFIER_assert(0<=buf) [L42] CALL __VERIFIER_assert(buf