/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 22:54:55,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 22:54:55,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 22:54:55,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 22:54:55,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 22:54:55,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 22:54:55,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 22:54:55,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 22:54:55,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 22:54:55,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 22:54:55,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 22:54:55,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 22:54:55,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 22:54:55,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 22:54:55,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 22:54:55,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 22:54:55,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 22:54:55,433 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 22:54:55,463 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 22:54:55,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 22:54:55,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 22:54:55,466 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 22:54:55,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 22:54:55,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 22:54:55,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 22:54:55,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 22:54:55,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 22:54:55,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 22:54:55,469 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 22:54:55,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 22:54:55,469 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 22:54:55,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 22:54:55,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 22:54:55,470 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 22:54:55,470 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 22:54:55,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 22:54:55,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:54:55,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 22:54:55,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 22:54:55,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 22:54:55,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 22:54:55,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 22:54:55,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 22:54:55,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 22:54:55,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 22:54:55,937 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 22:54:55,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-2.c [2021-02-23 22:54:56,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a919b2190/0ba230eeffdd458f8bf208451ff96c58/FLAG5db97a8d8 [2021-02-23 22:54:56,764 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 22:54:56,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-2.c [2021-02-23 22:54:56,774 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a919b2190/0ba230eeffdd458f8bf208451ff96c58/FLAG5db97a8d8 [2021-02-23 22:54:57,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a919b2190/0ba230eeffdd458f8bf208451ff96c58 [2021-02-23 22:54:57,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 22:54:57,123 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 22:54:57,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 22:54:57,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 22:54:57,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 22:54:57,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:54:57" (1/1) ... [2021-02-23 22:54:57,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d06397d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:54:57, skipping insertion in model container [2021-02-23 22:54:57,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:54:57" (1/1) ... [2021-02-23 22:54:57,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 22:54:57,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 22:54:57,352 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-2.c[947,960] [2021-02-23 22:54:57,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:54:57,370 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 22:54:57,388 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-2.c[947,960] [2021-02-23 22:54:57,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:54:57,406 INFO L208 MainTranslator]: Completed translation [2021-02-23 22:54:57,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:54:57 WrapperNode [2021-02-23 22:54:57,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 22:54:57,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 22:54:57,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 22:54:57,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 22:54:57,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:54:57" (1/1) ... [2021-02-23 22:54:57,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:54:57" (1/1) ... [2021-02-23 22:54:57,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:54:57" (1/1) ... [2021-02-23 22:54:57,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:54:57" (1/1) ... [2021-02-23 22:54:57,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:54:57" (1/1) ... [2021-02-23 22:54:57,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:54:57" (1/1) ... [2021-02-23 22:54:57,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:54:57" (1/1) ... [2021-02-23 22:54:57,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 22:54:57,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 22:54:57,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 22:54:57,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 22:54:57,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:54:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:54:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 22:54:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 22:54:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 22:54:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2021-02-23 22:54:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2021-02-23 22:54:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 22:54:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 22:54:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 22:54:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 22:54:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 22:54:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 22:54:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2021-02-23 22:54:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2021-02-23 22:54:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 22:54:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 22:54:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 22:54:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 22:54:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 22:54:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 22:54:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 22:54:57,939 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 22:54:57,940 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 22:54:57,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:54:57 BoogieIcfgContainer [2021-02-23 22:54:57,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 22:54:57,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 22:54:57,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 22:54:57,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 22:54:57,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 10:54:57" (1/3) ... [2021-02-23 22:54:57,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129103ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:54:57, skipping insertion in model container [2021-02-23 22:54:57,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:54:57" (2/3) ... [2021-02-23 22:54:57,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129103ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:54:57, skipping insertion in model container [2021-02-23 22:54:57,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:54:57" (3/3) ... [2021-02-23 22:54:57,956 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-2.c [2021-02-23 22:54:57,966 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 22:54:57,972 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 22:54:58,000 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 22:54:58,032 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 22:54:58,032 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 22:54:58,033 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 22:54:58,033 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 22:54:58,033 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 22:54:58,033 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 22:54:58,033 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 22:54:58,034 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 22:54:58,053 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2021-02-23 22:54:58,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-23 22:54:58,065 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:54:58,066 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] [2021-02-23 22:54:58,066 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:54:58,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:54:58,075 INFO L82 PathProgramCache]: Analyzing trace with hash 2042570277, now seen corresponding path program 1 times [2021-02-23 22:54:58,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:54:58,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032946989] [2021-02-23 22:54:58,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:54:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:54:58,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:58,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:58,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:58,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:54:58,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:58,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:54:58,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:58,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:58,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:54:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:54:58,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:58,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:58,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:54:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:54:58,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:58,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:58,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:58,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:54:58,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:54:58,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032946989] [2021-02-23 22:54:58,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:54:58,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 22:54:58,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453466855] [2021-02-23 22:54:58,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 22:54:58,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:54:58,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 22:54:58,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-23 22:54:58,573 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 6 states. [2021-02-23 22:54:59,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:54:59,016 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2021-02-23 22:54:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 22:54:59,019 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2021-02-23 22:54:59,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:54:59,031 INFO L225 Difference]: With dead ends: 70 [2021-02-23 22:54:59,031 INFO L226 Difference]: Without dead ends: 50 [2021-02-23 22:54:59,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-23 22:54:59,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-02-23 22:54:59,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-02-23 22:54:59,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2021-02-23 22:54:59,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2021-02-23 22:54:59,109 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 24 [2021-02-23 22:54:59,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:54:59,110 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2021-02-23 22:54:59,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 22:54:59,110 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2021-02-23 22:54:59,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-23 22:54:59,113 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:54:59,113 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] [2021-02-23 22:54:59,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 22:54:59,114 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:54:59,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:54:59,115 INFO L82 PathProgramCache]: Analyzing trace with hash -589714176, now seen corresponding path program 1 times [2021-02-23 22:54:59,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:54:59,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651880784] [2021-02-23 22:54:59,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:54:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:54:59,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:59,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:54:59,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:54:59,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:59,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:54:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:54:59,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:59,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:54:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:54:59,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:59,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:54:59,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:54:59,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651880784] [2021-02-23 22:54:59,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:54:59,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 22:54:59,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463375831] [2021-02-23 22:54:59,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 22:54:59,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:54:59,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 22:54:59,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-23 22:54:59,325 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand 6 states. [2021-02-23 22:54:59,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:54:59,642 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2021-02-23 22:54:59,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 22:54:59,643 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2021-02-23 22:54:59,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:54:59,645 INFO L225 Difference]: With dead ends: 58 [2021-02-23 22:54:59,645 INFO L226 Difference]: Without dead ends: 52 [2021-02-23 22:54:59,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-23 22:54:59,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-02-23 22:54:59,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2021-02-23 22:54:59,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2021-02-23 22:54:59,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2021-02-23 22:54:59,665 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 25 [2021-02-23 22:54:59,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:54:59,666 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2021-02-23 22:54:59,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 22:54:59,666 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2021-02-23 22:54:59,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-02-23 22:54:59,669 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:54:59,669 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:54:59,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 22:54:59,669 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:54:59,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:54:59,670 INFO L82 PathProgramCache]: Analyzing trace with hash -374229603, now seen corresponding path program 1 times [2021-02-23 22:54:59,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:54:59,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375756079] [2021-02-23 22:54:59,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:54:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:54:59,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:59,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:59,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:54:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:54:59,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:59,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:54:59,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:54:59,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:59,767 WARN L141 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size [2021-02-23 22:54:59,768 WARN L147 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size 3 [2021-02-23 22:54:59,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:54:59,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:59,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:59,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:54:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:54:59,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:54:59,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:54:59,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 22:54:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:54:59,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:54:59,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:54:59,820 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-23 22:54:59,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375756079] [2021-02-23 22:54:59,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:54:59,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 22:54:59,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690312981] [2021-02-23 22:54:59,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 22:54:59,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:54:59,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 22:54:59,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-23 22:54:59,824 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand 7 states. [2021-02-23 22:55:00,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:00,170 INFO L93 Difference]: Finished difference Result 90 states and 110 transitions. [2021-02-23 22:55:00,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 22:55:00,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2021-02-23 22:55:00,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:00,173 INFO L225 Difference]: With dead ends: 90 [2021-02-23 22:55:00,173 INFO L226 Difference]: Without dead ends: 54 [2021-02-23 22:55:00,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-02-23 22:55:00,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-02-23 22:55:00,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2021-02-23 22:55:00,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2021-02-23 22:55:00,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2021-02-23 22:55:00,191 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 41 [2021-02-23 22:55:00,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:00,192 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2021-02-23 22:55:00,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 22:55:00,192 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2021-02-23 22:55:00,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-23 22:55:00,194 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:00,195 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-23 22:55:00,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 22:55:00,195 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:00,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:00,196 INFO L82 PathProgramCache]: Analyzing trace with hash -245289899, now seen corresponding path program 1 times [2021-02-23 22:55:00,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:00,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980410509] [2021-02-23 22:55:00,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:00,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:00,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:00,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:00,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:00,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:00,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:00,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:00,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:00,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:00,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:00,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:00,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:00,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:00,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:00,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:00,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:00,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:00,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:00,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:00,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:00,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:00,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:00,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:00,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:00,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-23 22:55:00,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980410509] [2021-02-23 22:55:00,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:00,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-02-23 22:55:00,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057797363] [2021-02-23 22:55:00,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 22:55:00,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:00,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 22:55:00,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-02-23 22:55:00,391 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand 9 states. [2021-02-23 22:55:00,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:00,874 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2021-02-23 22:55:00,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 22:55:00,875 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2021-02-23 22:55:00,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:00,877 INFO L225 Difference]: With dead ends: 82 [2021-02-23 22:55:00,878 INFO L226 Difference]: Without dead ends: 76 [2021-02-23 22:55:00,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-02-23 22:55:00,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-02-23 22:55:00,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2021-02-23 22:55:00,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-02-23 22:55:00,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2021-02-23 22:55:00,901 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 42 [2021-02-23 22:55:00,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:00,902 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2021-02-23 22:55:00,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 22:55:00,902 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2021-02-23 22:55:00,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-23 22:55:00,905 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:00,905 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:00,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 22:55:00,906 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:00,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:00,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1853062104, now seen corresponding path program 1 times [2021-02-23 22:55:00,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:00,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316177390] [2021-02-23 22:55:00,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:00,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:00,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:00,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:00,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:00,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:00,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:00,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:00,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:01,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:01,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:01,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:01,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:01,047 WARN L141 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size [2021-02-23 22:55:01,047 WARN L147 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size 3 [2021-02-23 22:55:01,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:55:01,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:01,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:01,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:01,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:01,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:01,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 22:55:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:01,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:01,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-02-23 22:55:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:01,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:01,117 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-23 22:55:01,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316177390] [2021-02-23 22:55:01,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:01,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 22:55:01,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228257376] [2021-02-23 22:55:01,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 22:55:01,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:01,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 22:55:01,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-23 22:55:01,120 INFO L87 Difference]: Start difference. First operand 74 states and 91 transitions. Second operand 7 states. [2021-02-23 22:55:01,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:01,390 INFO L93 Difference]: Finished difference Result 138 states and 186 transitions. [2021-02-23 22:55:01,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 22:55:01,391 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2021-02-23 22:55:01,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:01,393 INFO L225 Difference]: With dead ends: 138 [2021-02-23 22:55:01,393 INFO L226 Difference]: Without dead ends: 78 [2021-02-23 22:55:01,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-02-23 22:55:01,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-02-23 22:55:01,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-02-23 22:55:01,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-02-23 22:55:01,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 97 transitions. [2021-02-23 22:55:01,418 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 97 transitions. Word has length 58 [2021-02-23 22:55:01,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:01,419 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 97 transitions. [2021-02-23 22:55:01,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 22:55:01,419 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 97 transitions. [2021-02-23 22:55:01,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-02-23 22:55:01,422 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:01,422 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:01,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 22:55:01,422 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:01,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:01,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1662933173, now seen corresponding path program 1 times [2021-02-23 22:55:01,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:01,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063700106] [2021-02-23 22:55:01,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:01,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:01,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:01,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:01,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:01,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:01,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:01,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:01,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:01,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:01,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:01,580 WARN L141 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-02-23 22:55:01,581 WARN L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-02-23 22:55:01,589 WARN L141 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-02-23 22:55:01,590 WARN L147 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size 7 [2021-02-23 22:55:01,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:01,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:01,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:01,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:01,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:01,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:01,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:01,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:01,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:01,642 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-02-23 22:55:01,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063700106] [2021-02-23 22:55:01,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:01,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-02-23 22:55:01,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092930275] [2021-02-23 22:55:01,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 22:55:01,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:01,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 22:55:01,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-02-23 22:55:01,644 INFO L87 Difference]: Start difference. First operand 78 states and 97 transitions. Second operand 9 states. [2021-02-23 22:55:02,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:02,022 INFO L93 Difference]: Finished difference Result 150 states and 205 transitions. [2021-02-23 22:55:02,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-23 22:55:02,023 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 59 [2021-02-23 22:55:02,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:02,025 INFO L225 Difference]: With dead ends: 150 [2021-02-23 22:55:02,025 INFO L226 Difference]: Without dead ends: 86 [2021-02-23 22:55:02,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-02-23 22:55:02,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-02-23 22:55:02,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 80. [2021-02-23 22:55:02,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2021-02-23 22:55:02,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 100 transitions. [2021-02-23 22:55:02,054 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 100 transitions. Word has length 59 [2021-02-23 22:55:02,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:02,055 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 100 transitions. [2021-02-23 22:55:02,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 22:55:02,055 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 100 transitions. [2021-02-23 22:55:02,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-02-23 22:55:02,058 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:02,058 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:02,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 22:55:02,058 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:02,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:02,059 INFO L82 PathProgramCache]: Analyzing trace with hash -702082707, now seen corresponding path program 1 times [2021-02-23 22:55:02,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:02,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781482551] [2021-02-23 22:55:02,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:02,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:02,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:02,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:02,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:02,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:02,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:02,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:02,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:02,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:02,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:02,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:02,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:02,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:02,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:02,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:02,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:02,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:02,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:02,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:02,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:02,233 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-23 22:55:02,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781482551] [2021-02-23 22:55:02,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:02,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-23 22:55:02,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481646853] [2021-02-23 22:55:02,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 22:55:02,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:02,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 22:55:02,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-02-23 22:55:02,236 INFO L87 Difference]: Start difference. First operand 80 states and 100 transitions. Second operand 11 states. [2021-02-23 22:55:02,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:02,813 INFO L93 Difference]: Finished difference Result 126 states and 166 transitions. [2021-02-23 22:55:02,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 22:55:02,813 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 60 [2021-02-23 22:55:02,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:02,816 INFO L225 Difference]: With dead ends: 126 [2021-02-23 22:55:02,816 INFO L226 Difference]: Without dead ends: 120 [2021-02-23 22:55:02,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2021-02-23 22:55:02,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-02-23 22:55:02,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 114. [2021-02-23 22:55:02,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2021-02-23 22:55:02,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 153 transitions. [2021-02-23 22:55:02,854 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 153 transitions. Word has length 60 [2021-02-23 22:55:02,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:02,854 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 153 transitions. [2021-02-23 22:55:02,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 22:55:02,854 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 153 transitions. [2021-02-23 22:55:02,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-02-23 22:55:02,856 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:02,857 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:02,857 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 22:55:02,857 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:02,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:02,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1046643654, now seen corresponding path program 1 times [2021-02-23 22:55:02,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:02,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891861647] [2021-02-23 22:55:02,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:02,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:02,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:02,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:02,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:02,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:02,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:02,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:02,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:02,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:02,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:02,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:02,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:02,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:02,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:02,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:02,981 WARN L141 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-02-23 22:55:02,982 WARN L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-02-23 22:55:02,991 WARN L141 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-02-23 22:55:02,992 WARN L147 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size 7 [2021-02-23 22:55:03,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:03,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:03,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:03,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:03,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:03,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:03,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:03,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:03,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 22:55:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:03,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:03,058 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-02-23 22:55:03,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891861647] [2021-02-23 22:55:03,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:03,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 22:55:03,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66065731] [2021-02-23 22:55:03,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 22:55:03,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:03,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 22:55:03,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-02-23 22:55:03,061 INFO L87 Difference]: Start difference. First operand 114 states and 153 transitions. Second operand 10 states. [2021-02-23 22:55:03,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:03,500 INFO L93 Difference]: Finished difference Result 235 states and 356 transitions. [2021-02-23 22:55:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 22:55:03,501 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2021-02-23 22:55:03,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:03,504 INFO L225 Difference]: With dead ends: 235 [2021-02-23 22:55:03,504 INFO L226 Difference]: Without dead ends: 135 [2021-02-23 22:55:03,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-02-23 22:55:03,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-02-23 22:55:03,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 123. [2021-02-23 22:55:03,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2021-02-23 22:55:03,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 169 transitions. [2021-02-23 22:55:03,547 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 169 transitions. Word has length 77 [2021-02-23 22:55:03,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:03,548 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 169 transitions. [2021-02-23 22:55:03,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 22:55:03,548 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 169 transitions. [2021-02-23 22:55:03,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-02-23 22:55:03,551 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:03,551 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:03,551 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 22:55:03,551 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:03,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:03,552 INFO L82 PathProgramCache]: Analyzing trace with hash 549553181, now seen corresponding path program 1 times [2021-02-23 22:55:03,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:03,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990111416] [2021-02-23 22:55:03,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:03,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:03,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:03,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:03,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:03,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:03,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:03,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:03,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:03,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:03,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:03,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:03,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:03,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:03,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:03,687 WARN L141 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-02-23 22:55:03,688 WARN L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-02-23 22:55:03,700 WARN L141 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-02-23 22:55:03,701 WARN L147 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size 7 [2021-02-23 22:55:03,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:03,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:03,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:03,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:03,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:03,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:03,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:03,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:03,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:03,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:03,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:03,824 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 23 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-02-23 22:55:03,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990111416] [2021-02-23 22:55:03,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:03,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-02-23 22:55:03,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794137978] [2021-02-23 22:55:03,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 22:55:03,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:03,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 22:55:03,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-02-23 22:55:03,827 INFO L87 Difference]: Start difference. First operand 123 states and 169 transitions. Second operand 12 states. [2021-02-23 22:55:04,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:04,345 INFO L93 Difference]: Finished difference Result 265 states and 408 transitions. [2021-02-23 22:55:04,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 22:55:04,345 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2021-02-23 22:55:04,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:04,348 INFO L225 Difference]: With dead ends: 265 [2021-02-23 22:55:04,348 INFO L226 Difference]: Without dead ends: 159 [2021-02-23 22:55:04,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2021-02-23 22:55:04,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-02-23 22:55:04,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 141. [2021-02-23 22:55:04,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2021-02-23 22:55:04,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 199 transitions. [2021-02-23 22:55:04,388 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 199 transitions. Word has length 78 [2021-02-23 22:55:04,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:04,388 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 199 transitions. [2021-02-23 22:55:04,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 22:55:04,389 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 199 transitions. [2021-02-23 22:55:04,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-02-23 22:55:04,391 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:04,392 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:04,392 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 22:55:04,392 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:04,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:04,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1536611686, now seen corresponding path program 2 times [2021-02-23 22:55:04,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:04,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114959963] [2021-02-23 22:55:04,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:04,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:04,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:04,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:04,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:04,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:04,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:04,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:04,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:04,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:04,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:04,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:04,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:04,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:04,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:04,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:04,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:04,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:04,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:04,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:04,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:04,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:04,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:04,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:04,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:04,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:04,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:04,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:04,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:04,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:04,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:04,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:04,628 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 8 proven. 47 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-02-23 22:55:04,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114959963] [2021-02-23 22:55:04,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:04,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-02-23 22:55:04,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675107804] [2021-02-23 22:55:04,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-23 22:55:04,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:04,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-23 22:55:04,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-02-23 22:55:04,631 INFO L87 Difference]: Start difference. First operand 141 states and 199 transitions. Second operand 13 states. [2021-02-23 22:55:05,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:05,268 INFO L93 Difference]: Finished difference Result 221 states and 323 transitions. [2021-02-23 22:55:05,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-23 22:55:05,269 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 96 [2021-02-23 22:55:05,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:05,274 INFO L225 Difference]: With dead ends: 221 [2021-02-23 22:55:05,274 INFO L226 Difference]: Without dead ends: 215 [2021-02-23 22:55:05,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2021-02-23 22:55:05,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-02-23 22:55:05,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 209. [2021-02-23 22:55:05,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2021-02-23 22:55:05,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 310 transitions. [2021-02-23 22:55:05,330 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 310 transitions. Word has length 96 [2021-02-23 22:55:05,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:05,331 INFO L480 AbstractCegarLoop]: Abstraction has 209 states and 310 transitions. [2021-02-23 22:55:05,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-23 22:55:05,331 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 310 transitions. [2021-02-23 22:55:05,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-02-23 22:55:05,336 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:05,336 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:05,336 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 22:55:05,336 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:05,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:05,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1860651107, now seen corresponding path program 2 times [2021-02-23 22:55:05,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:05,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427782635] [2021-02-23 22:55:05,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:05,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:05,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:05,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:05,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:05,500 WARN L141 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-02-23 22:55:05,500 WARN L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-02-23 22:55:05,509 WARN L141 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-02-23 22:55:05,510 WARN L147 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size 7 [2021-02-23 22:55:05,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:05,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:05,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:05,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 22:55:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:05,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:05,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:05,650 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 54 proven. 96 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2021-02-23 22:55:05,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427782635] [2021-02-23 22:55:05,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:05,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-02-23 22:55:05,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606412882] [2021-02-23 22:55:05,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 22:55:05,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:05,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 22:55:05,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-02-23 22:55:05,653 INFO L87 Difference]: Start difference. First operand 209 states and 310 transitions. Second operand 12 states. [2021-02-23 22:55:06,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:06,212 INFO L93 Difference]: Finished difference Result 453 states and 766 transitions. [2021-02-23 22:55:06,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 22:55:06,212 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 149 [2021-02-23 22:55:06,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:06,217 INFO L225 Difference]: With dead ends: 453 [2021-02-23 22:55:06,218 INFO L226 Difference]: Without dead ends: 261 [2021-02-23 22:55:06,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2021-02-23 22:55:06,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-02-23 22:55:06,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 231. [2021-02-23 22:55:06,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2021-02-23 22:55:06,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 358 transitions. [2021-02-23 22:55:06,277 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 358 transitions. Word has length 149 [2021-02-23 22:55:06,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:06,277 INFO L480 AbstractCegarLoop]: Abstraction has 231 states and 358 transitions. [2021-02-23 22:55:06,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 22:55:06,278 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 358 transitions. [2021-02-23 22:55:06,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-02-23 22:55:06,283 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:06,283 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 8, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:06,283 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 22:55:06,283 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:06,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:06,284 INFO L82 PathProgramCache]: Analyzing trace with hash -719621011, now seen corresponding path program 3 times [2021-02-23 22:55:06,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:06,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726964563] [2021-02-23 22:55:06,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:06,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:06,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:06,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:06,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:06,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:06,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:06,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:06,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:06,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:06,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:06,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:06,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:06,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:06,567 WARN L141 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-02-23 22:55:06,567 WARN L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-02-23 22:55:06,579 WARN L141 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-02-23 22:55:06,580 WARN L147 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size 7 [2021-02-23 22:55:06,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:06,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 22:55:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-02-23 22:55:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:06,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:06,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:06,721 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 85 proven. 148 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-02-23 22:55:06,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726964563] [2021-02-23 22:55:06,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:06,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-02-23 22:55:06,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147381096] [2021-02-23 22:55:06,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-23 22:55:06,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:06,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-23 22:55:06,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-02-23 22:55:06,724 INFO L87 Difference]: Start difference. First operand 231 states and 358 transitions. Second operand 17 states. [2021-02-23 22:55:07,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:07,975 INFO L93 Difference]: Finished difference Result 463 states and 793 transitions. [2021-02-23 22:55:07,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-23 22:55:07,975 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 166 [2021-02-23 22:55:07,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:07,979 INFO L225 Difference]: With dead ends: 463 [2021-02-23 22:55:07,979 INFO L226 Difference]: Without dead ends: 213 [2021-02-23 22:55:07,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=184, Invalid=1006, Unknown=0, NotChecked=0, Total=1190 [2021-02-23 22:55:07,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-02-23 22:55:08,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 185. [2021-02-23 22:55:08,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2021-02-23 22:55:08,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 241 transitions. [2021-02-23 22:55:08,024 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 241 transitions. Word has length 166 [2021-02-23 22:55:08,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:08,024 INFO L480 AbstractCegarLoop]: Abstraction has 185 states and 241 transitions. [2021-02-23 22:55:08,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-23 22:55:08,025 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 241 transitions. [2021-02-23 22:55:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-02-23 22:55:08,028 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:08,028 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:08,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-23 22:55:08,028 INFO L428 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:08,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:08,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1120622697, now seen corresponding path program 1 times [2021-02-23 22:55:08,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:08,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057438380] [2021-02-23 22:55:08,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:08,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:08,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:08,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:08,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:08,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,434 WARN L141 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-02-23 22:55:08,434 WARN L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-02-23 22:55:08,449 WARN L141 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-02-23 22:55:08,449 WARN L147 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size 7 [2021-02-23 22:55:08,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:08,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:08,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:08,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:08,569 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 110 proven. 175 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2021-02-23 22:55:08,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057438380] [2021-02-23 22:55:08,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:08,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2021-02-23 22:55:08,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631621583] [2021-02-23 22:55:08,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-02-23 22:55:08,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:08,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-02-23 22:55:08,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-02-23 22:55:08,572 INFO L87 Difference]: Start difference. First operand 185 states and 241 transitions. Second operand 21 states. [2021-02-23 22:55:10,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:10,034 INFO L93 Difference]: Finished difference Result 361 states and 515 transitions. [2021-02-23 22:55:10,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-23 22:55:10,034 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 183 [2021-02-23 22:55:10,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:10,037 INFO L225 Difference]: With dead ends: 361 [2021-02-23 22:55:10,038 INFO L226 Difference]: Without dead ends: 171 [2021-02-23 22:55:10,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=290, Invalid=1690, Unknown=0, NotChecked=0, Total=1980 [2021-02-23 22:55:10,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-02-23 22:55:10,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 131. [2021-02-23 22:55:10,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2021-02-23 22:55:10,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 162 transitions. [2021-02-23 22:55:10,068 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 162 transitions. Word has length 183 [2021-02-23 22:55:10,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:10,069 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 162 transitions. [2021-02-23 22:55:10,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2021-02-23 22:55:10,069 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 162 transitions. [2021-02-23 22:55:10,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-02-23 22:55:10,073 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:10,073 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:10,073 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-23 22:55:10,073 INFO L428 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:10,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:10,074 INFO L82 PathProgramCache]: Analyzing trace with hash 585476387, now seen corresponding path program 3 times [2021-02-23 22:55:10,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:10,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756612816] [2021-02-23 22:55:10,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:10,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:10,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:10,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 22:55:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:10,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:10,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,611 WARN L141 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-02-23 22:55:10,613 WARN L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-02-23 22:55:10,632 WARN L141 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-02-23 22:55:10,633 WARN L147 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size 7 [2021-02-23 22:55:10,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:10,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 22:55:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 22:55:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:10,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:10,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:10,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 180 proven. 363 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2021-02-23 22:55:10,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756612816] [2021-02-23 22:55:10,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:10,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2021-02-23 22:55:10,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652931688] [2021-02-23 22:55:10,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-02-23 22:55:10,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:10,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-02-23 22:55:10,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-02-23 22:55:10,996 INFO L87 Difference]: Start difference. First operand 131 states and 162 transitions. Second operand 21 states. [2021-02-23 22:55:12,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:12,432 INFO L93 Difference]: Finished difference Result 303 states and 445 transitions. [2021-02-23 22:55:12,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-23 22:55:12,433 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 256 [2021-02-23 22:55:12,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:12,436 INFO L225 Difference]: With dead ends: 303 [2021-02-23 22:55:12,436 INFO L226 Difference]: Without dead ends: 185 [2021-02-23 22:55:12,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=298, Invalid=1772, Unknown=0, NotChecked=0, Total=2070 [2021-02-23 22:55:12,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-02-23 22:55:12,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 159. [2021-02-23 22:55:12,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2021-02-23 22:55:12,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 204 transitions. [2021-02-23 22:55:12,475 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 204 transitions. Word has length 256 [2021-02-23 22:55:12,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:12,475 INFO L480 AbstractCegarLoop]: Abstraction has 159 states and 204 transitions. [2021-02-23 22:55:12,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2021-02-23 22:55:12,475 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 204 transitions. [2021-02-23 22:55:12,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-02-23 22:55:12,480 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:12,480 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 11, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:12,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-23 22:55:12,480 INFO L428 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:12,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:12,481 INFO L82 PathProgramCache]: Analyzing trace with hash -2067350275, now seen corresponding path program 2 times [2021-02-23 22:55:12,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:12,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782871238] [2021-02-23 22:55:12,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,725 WARN L141 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-02-23 22:55:12,725 WARN L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-02-23 22:55:12,738 WARN L141 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-02-23 22:55:12,739 WARN L147 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size 7 [2021-02-23 22:55:12,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:12,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-02-23 22:55:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:12,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,941 WARN L141 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-02-23 22:55:12,941 WARN L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-02-23 22:55:12,942 WARN L141 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-02-23 22:55:12,942 WARN L147 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size 7 [2021-02-23 22:55:12,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:12,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:12,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:12,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:12,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:13,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 293 proven. 225 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2021-02-23 22:55:13,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782871238] [2021-02-23 22:55:13,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:13,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-02-23 22:55:13,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449137794] [2021-02-23 22:55:13,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-23 22:55:13,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:13,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-23 22:55:13,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-02-23 22:55:13,111 INFO L87 Difference]: Start difference. First operand 159 states and 204 transitions. Second operand 17 states. [2021-02-23 22:55:13,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:13,922 INFO L93 Difference]: Finished difference Result 293 states and 392 transitions. [2021-02-23 22:55:13,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-23 22:55:13,923 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 253 [2021-02-23 22:55:13,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:13,925 INFO L225 Difference]: With dead ends: 293 [2021-02-23 22:55:13,925 INFO L226 Difference]: Without dead ends: 158 [2021-02-23 22:55:13,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2021-02-23 22:55:13,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-02-23 22:55:13,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-02-23 22:55:13,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2021-02-23 22:55:13,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 198 transitions. [2021-02-23 22:55:13,959 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 198 transitions. Word has length 253 [2021-02-23 22:55:13,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:13,959 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 198 transitions. [2021-02-23 22:55:13,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-23 22:55:13,959 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 198 transitions. [2021-02-23 22:55:13,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-02-23 22:55:13,962 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:13,962 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:13,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-23 22:55:13,963 INFO L428 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:13,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:13,963 INFO L82 PathProgramCache]: Analyzing trace with hash 183289714, now seen corresponding path program 3 times [2021-02-23 22:55:13,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:13,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619835826] [2021-02-23 22:55:13,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:14,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:14,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:14,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:14,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:14,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:14,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:14,169 WARN L141 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-02-23 22:55:14,169 WARN L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-02-23 22:55:14,181 WARN L141 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-02-23 22:55:14,181 WARN L147 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size 7 [2021-02-23 22:55:14,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:14,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 22:55:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:14,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:14,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:14,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:14,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:14,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:14,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:14,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:14,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:14,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:14,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:14,489 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 206 proven. 107 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-02-23 22:55:14,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619835826] [2021-02-23 22:55:14,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:14,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-02-23 22:55:14,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945421648] [2021-02-23 22:55:14,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-23 22:55:14,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:14,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-23 22:55:14,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-02-23 22:55:14,495 INFO L87 Difference]: Start difference. First operand 158 states and 198 transitions. Second operand 17 states. [2021-02-23 22:55:15,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:15,450 INFO L93 Difference]: Finished difference Result 294 states and 380 transitions. [2021-02-23 22:55:15,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-23 22:55:15,451 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 201 [2021-02-23 22:55:15,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:15,453 INFO L225 Difference]: With dead ends: 294 [2021-02-23 22:55:15,454 INFO L226 Difference]: Without dead ends: 161 [2021-02-23 22:55:15,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=778, Unknown=0, NotChecked=0, Total=930 [2021-02-23 22:55:15,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-02-23 22:55:15,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 158. [2021-02-23 22:55:15,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2021-02-23 22:55:15,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 195 transitions. [2021-02-23 22:55:15,485 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 195 transitions. Word has length 201 [2021-02-23 22:55:15,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:15,486 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 195 transitions. [2021-02-23 22:55:15,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-23 22:55:15,486 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 195 transitions. [2021-02-23 22:55:15,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-02-23 22:55:15,491 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:15,491 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 14, 14, 13, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:15,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-23 22:55:15,491 INFO L428 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:15,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:15,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1543557443, now seen corresponding path program 4 times [2021-02-23 22:55:15,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:15,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558008020] [2021-02-23 22:55:15,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:15,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:15,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:15,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:15,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 22:55:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:15,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:15,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:15,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:15,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:15,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:16,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:16,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:16,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:16,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:16,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:16,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:16,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:16,013 WARN L141 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-02-23 22:55:16,014 WARN L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-02-23 22:55:16,028 WARN L141 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-02-23 22:55:16,031 WARN L147 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size 7 [2021-02-23 22:55:16,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:16,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:16,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:16,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:16,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:16,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:16,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:16,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:16,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:16,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:16,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:16,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:16,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:16,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:16,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:16,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:16,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:16,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:16,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:16,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:16,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:16,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:16,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:16,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 247 proven. 409 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2021-02-23 22:55:16,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558008020] [2021-02-23 22:55:16,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:16,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2021-02-23 22:55:16,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420270695] [2021-02-23 22:55:16,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-23 22:55:16,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:16,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-23 22:55:16,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2021-02-23 22:55:16,258 INFO L87 Difference]: Start difference. First operand 158 states and 195 transitions. Second operand 22 states. [2021-02-23 22:55:17,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:17,856 INFO L93 Difference]: Finished difference Result 324 states and 438 transitions. [2021-02-23 22:55:17,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-02-23 22:55:17,856 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 289 [2021-02-23 22:55:17,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:17,864 INFO L225 Difference]: With dead ends: 324 [2021-02-23 22:55:17,864 INFO L226 Difference]: Without dead ends: 187 [2021-02-23 22:55:17,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 686 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=358, Invalid=2192, Unknown=0, NotChecked=0, Total=2550 [2021-02-23 22:55:17,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-02-23 22:55:17,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 170. [2021-02-23 22:55:17,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2021-02-23 22:55:17,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 209 transitions. [2021-02-23 22:55:17,907 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 209 transitions. Word has length 289 [2021-02-23 22:55:17,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:17,908 INFO L480 AbstractCegarLoop]: Abstraction has 170 states and 209 transitions. [2021-02-23 22:55:17,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-02-23 22:55:17,908 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 209 transitions. [2021-02-23 22:55:17,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-02-23 22:55:17,914 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:17,914 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 15, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:17,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-23 22:55:17,914 INFO L428 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:17,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:17,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1832464049, now seen corresponding path program 5 times [2021-02-23 22:55:17,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:17,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2085944973] [2021-02-23 22:55:17,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:18,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:18,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:18,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:18,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:18,257 WARN L141 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-02-23 22:55:18,258 WARN L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-02-23 22:55:18,267 WARN L141 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-02-23 22:55:18,267 WARN L147 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size 7 [2021-02-23 22:55:18,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:18,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:18,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:18,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:18,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:18,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:18,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-02-23 22:55:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-02-23 22:55:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:18,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:18,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:18,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 234 proven. 383 refuted. 0 times theorem prover too weak. 1417 trivial. 0 not checked. [2021-02-23 22:55:18,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2085944973] [2021-02-23 22:55:18,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:18,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-02-23 22:55:18,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361865547] [2021-02-23 22:55:18,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-23 22:55:18,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:18,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-23 22:55:18,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-02-23 22:55:18,671 INFO L87 Difference]: Start difference. First operand 170 states and 209 transitions. Second operand 14 states. [2021-02-23 22:55:19,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:19,396 INFO L93 Difference]: Finished difference Result 315 states and 403 transitions. [2021-02-23 22:55:19,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 22:55:19,401 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 341 [2021-02-23 22:55:19,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:19,408 INFO L225 Difference]: With dead ends: 315 [2021-02-23 22:55:19,409 INFO L226 Difference]: Without dead ends: 169 [2021-02-23 22:55:19,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=541, Unknown=0, NotChecked=0, Total=650 [2021-02-23 22:55:19,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-02-23 22:55:19,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 166. [2021-02-23 22:55:19,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2021-02-23 22:55:19,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 202 transitions. [2021-02-23 22:55:19,446 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 202 transitions. Word has length 341 [2021-02-23 22:55:19,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:19,446 INFO L480 AbstractCegarLoop]: Abstraction has 166 states and 202 transitions. [2021-02-23 22:55:19,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-23 22:55:19,447 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 202 transitions. [2021-02-23 22:55:19,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-02-23 22:55:19,452 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:19,452 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:19,452 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-02-23 22:55:19,452 INFO L428 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:19,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:19,453 INFO L82 PathProgramCache]: Analyzing trace with hash -848767614, now seen corresponding path program 6 times [2021-02-23 22:55:19,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:19,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488288135] [2021-02-23 22:55:19,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:19,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:19,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:19,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:19,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:19,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:19,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:19,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:19,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:19,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:19,829 WARN L141 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-02-23 22:55:19,829 WARN L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-02-23 22:55:19,841 WARN L141 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-02-23 22:55:19,842 WARN L147 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size 7 [2021-02-23 22:55:19,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:19,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 22:55:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:19,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:19,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:19,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:19,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-02-23 22:55:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:20,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:20,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:20,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:20,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:20,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:20,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:20,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:20,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:20,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:20,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:20,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:20,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:20,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:20,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:20,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:20,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:20,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:20,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:20,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:20,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:20,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:20,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:20,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:20,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:20,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:20,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1820 backedges. 453 proven. 330 refuted. 0 times theorem prover too weak. 1037 trivial. 0 not checked. [2021-02-23 22:55:20,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488288135] [2021-02-23 22:55:20,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:20,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2021-02-23 22:55:20,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362119302] [2021-02-23 22:55:20,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-02-23 22:55:20,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:20,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-02-23 22:55:20,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2021-02-23 22:55:20,290 INFO L87 Difference]: Start difference. First operand 166 states and 202 transitions. Second operand 21 states. [2021-02-23 22:55:21,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:21,737 INFO L93 Difference]: Finished difference Result 342 states and 439 transitions. [2021-02-23 22:55:21,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-23 22:55:21,737 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 324 [2021-02-23 22:55:21,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:21,741 INFO L225 Difference]: With dead ends: 342 [2021-02-23 22:55:21,741 INFO L226 Difference]: Without dead ends: 188 [2021-02-23 22:55:21,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=253, Invalid=1553, Unknown=0, NotChecked=0, Total=1806 [2021-02-23 22:55:21,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-02-23 22:55:21,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 172. [2021-02-23 22:55:21,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2021-02-23 22:55:21,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 210 transitions. [2021-02-23 22:55:21,781 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 210 transitions. Word has length 324 [2021-02-23 22:55:21,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:21,782 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 210 transitions. [2021-02-23 22:55:21,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2021-02-23 22:55:21,782 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 210 transitions. [2021-02-23 22:55:21,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2021-02-23 22:55:21,799 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:21,799 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 29, 29, 26, 25, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 8, 8, 8, 8, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:21,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-02-23 22:55:21,800 INFO L428 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:21,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:21,800 INFO L82 PathProgramCache]: Analyzing trace with hash 65923783, now seen corresponding path program 7 times [2021-02-23 22:55:21,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:21,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511211901] [2021-02-23 22:55:21,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:22,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:22,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:22,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:22,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 22:55:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:22,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,676 WARN L141 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-02-23 22:55:22,676 WARN L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-02-23 22:55:22,693 WARN L141 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-02-23 22:55:22,694 WARN L147 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size 7 [2021-02-23 22:55:22,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:22,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-02-23 22:55:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:22,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:22,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:22,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 22:55:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:23,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:23,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:23,495 INFO L134 CoverageAnalysis]: Checked inductivity of 6210 backedges. 397 proven. 1338 refuted. 0 times theorem prover too weak. 4475 trivial. 0 not checked. [2021-02-23 22:55:23,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511211901] [2021-02-23 22:55:23,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:23,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2021-02-23 22:55:23,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74451776] [2021-02-23 22:55:23,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-23 22:55:23,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:23,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-23 22:55:23,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2021-02-23 22:55:23,498 INFO L87 Difference]: Start difference. First operand 172 states and 210 transitions. Second operand 22 states. [2021-02-23 22:55:25,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:25,314 INFO L93 Difference]: Finished difference Result 369 states and 497 transitions. [2021-02-23 22:55:25,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-02-23 22:55:25,315 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 571 [2021-02-23 22:55:25,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:25,319 INFO L225 Difference]: With dead ends: 369 [2021-02-23 22:55:25,319 INFO L226 Difference]: Without dead ends: 215 [2021-02-23 22:55:25,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=366, Invalid=2286, Unknown=0, NotChecked=0, Total=2652 [2021-02-23 22:55:25,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-02-23 22:55:25,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 184. [2021-02-23 22:55:25,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2021-02-23 22:55:25,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 227 transitions. [2021-02-23 22:55:25,357 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 227 transitions. Word has length 571 [2021-02-23 22:55:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:25,357 INFO L480 AbstractCegarLoop]: Abstraction has 184 states and 227 transitions. [2021-02-23 22:55:25,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-02-23 22:55:25,357 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 227 transitions. [2021-02-23 22:55:25,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2021-02-23 22:55:25,363 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:25,363 INFO L422 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 31, 31, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 12, 12, 12, 12, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:25,364 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-02-23 22:55:25,364 INFO L428 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:25,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:25,365 INFO L82 PathProgramCache]: Analyzing trace with hash 137491866, now seen corresponding path program 8 times [2021-02-23 22:55:25,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:25,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643073317] [2021-02-23 22:55:25,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:25,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:25,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:25,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:25,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:25,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:25,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:25,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:55:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:25,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:25,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:25,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 22:55:25,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:25,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:25,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:25,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:25,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:25,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:25,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:25,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:26,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:26,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:26,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:26,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:26,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 22:55:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-02-23 22:55:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:26,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:26,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:26,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:55:26,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:55:26,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 22:55:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-02-23 22:55:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:26,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:26,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:26,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-02-23 22:55:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 22:55:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 22:55:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 22:55:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 22:55:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 22:55:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:55:27,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:55:27,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:55:27,739 INFO L134 CoverageAnalysis]: Checked inductivity of 9281 backedges. 792 proven. 1887 refuted. 0 times theorem prover too weak. 6602 trivial. 0 not checked. [2021-02-23 22:55:27,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643073317] [2021-02-23 22:55:27,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 22:55:27,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2021-02-23 22:55:27,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880045739] [2021-02-23 22:55:27,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-23 22:55:27,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:55:27,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-23 22:55:27,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2021-02-23 22:55:27,741 INFO L87 Difference]: Start difference. First operand 184 states and 227 transitions. Second operand 27 states. [2021-02-23 22:55:30,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:55:30,289 INFO L93 Difference]: Finished difference Result 390 states and 541 transitions. [2021-02-23 22:55:30,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-23 22:55:30,293 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 694 [2021-02-23 22:55:30,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:55:30,299 INFO L225 Difference]: With dead ends: 390 [2021-02-23 22:55:30,299 INFO L226 Difference]: Without dead ends: 223 [2021-02-23 22:55:30,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1120 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=475, Invalid=3307, Unknown=0, NotChecked=0, Total=3782 [2021-02-23 22:55:30,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-02-23 22:55:30,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 208. [2021-02-23 22:55:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2021-02-23 22:55:30,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 259 transitions. [2021-02-23 22:55:30,344 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 259 transitions. Word has length 694 [2021-02-23 22:55:30,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:55:30,344 INFO L480 AbstractCegarLoop]: Abstraction has 208 states and 259 transitions. [2021-02-23 22:55:30,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2021-02-23 22:55:30,344 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 259 transitions. [2021-02-23 22:55:30,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2021-02-23 22:55:30,349 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:55:30,350 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 11, 11, 10, 10, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:55:30,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-02-23 22:55:30,350 INFO L428 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:55:30,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:55:30,351 INFO L82 PathProgramCache]: Analyzing trace with hash 742227221, now seen corresponding path program 9 times [2021-02-23 22:55:30,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:55:30,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [183954607] [2021-02-23 22:55:30,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:55:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:55:30,432 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:55:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:55:30,522 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:55:30,779 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 22:55:30,780 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 22:55:30,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-02-23 22:55:31,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:55:31 BoogieIcfgContainer [2021-02-23 22:55:31,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:55:31,006 INFO L168 Benchmark]: Toolchain (without parser) took 33897.62 ms. Allocated memory was 151.0 MB in the beginning and 792.7 MB in the end (delta: 641.7 MB). Free memory was 128.3 MB in the beginning and 485.2 MB in the end (delta: -356.9 MB). Peak memory consumption was 285.5 MB. Max. memory is 8.0 GB. [2021-02-23 22:55:31,006 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:55:31,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.34 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 117.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 22:55:31,007 INFO L168 Benchmark]: Boogie Preprocessor took 35.76 ms. Allocated memory is still 151.0 MB. Free memory was 117.7 MB in the beginning and 116.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 22:55:31,007 INFO L168 Benchmark]: RCFGBuilder took 497.90 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 131.8 MB in the end (delta: -15.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 8.0 GB. [2021-02-23 22:55:31,007 INFO L168 Benchmark]: TraceAbstraction took 33059.42 ms. Allocated memory was 151.0 MB in the beginning and 792.7 MB in the end (delta: 641.7 MB). Free memory was 131.2 MB in the beginning and 485.2 MB in the end (delta: -354.0 MB). Peak memory consumption was 289.8 MB. Max. memory is 8.0 GB. [2021-02-23 22:55:31,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 280.34 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 117.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.76 ms. Allocated memory is still 151.0 MB. Free memory was 117.7 MB in the beginning and 116.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 497.90 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 131.8 MB in the end (delta: -15.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 33059.42 ms. Allocated memory was 151.0 MB in the beginning and 792.7 MB in the end (delta: 641.7 MB). Free memory was 131.2 MB in the beginning and 485.2 MB in the end (delta: -354.0 MB). Peak memory consumption was 289.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 41]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L38] int x = 8; VAL [x=8] [L39] CALL, EXPR fibo1(x) VAL [\old(n)=8] [L10] COND FALSE !(n < 1) VAL [\old(n)=8, n=8] [L12] COND FALSE !(n == 1) VAL [\old(n)=8, n=8] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=7] [L20] COND FALSE !(n < 1) VAL [\old(n)=7, n=7] [L22] COND FALSE !(n == 1) VAL [\old(n)=7, n=7] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=6] [L10] COND FALSE !(n < 1) VAL [\old(n)=6, n=6] [L12] COND FALSE !(n == 1) VAL [\old(n)=6, n=6] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=5] [L20] COND FALSE !(n < 1) VAL [\old(n)=5, n=5] [L22] COND FALSE !(n == 1) VAL [\old(n)=5, n=5] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=4] [L10] COND FALSE !(n < 1) VAL [\old(n)=4, n=4] [L12] COND FALSE !(n == 1) VAL [\old(n)=4, n=4] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=3] [L20] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L22] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=2] [L10] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L12] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L23] return 1; VAL [\old(n)=1, \result=1, n=1] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=2, fibo2(n-1)=1, n=2] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=0] [L20] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L21] return 0; VAL [\old(n)=0, \result=0, n=0] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=2, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=2, \result=1, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=3, fibo1(n-1)=1, n=3] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=1] [L10] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L12] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L13] return 1; VAL [\old(n)=1, \result=1, n=1] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=3, fibo1(n-1)=1, fibo1(n-2)=1, n=3] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=3, \result=2, fibo1(n-1)=1, fibo1(n-2)=1, n=3] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=4, fibo2(n-1)=2, n=4] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=2] [L20] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L22] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=1] [L10] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L12] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L13] return 1; VAL [\old(n)=1, \result=1, n=1] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=2, fibo1(n-1)=1, n=2] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=0] [L10] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L11] return 0; VAL [\old(n)=0, \result=0, n=0] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=2, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=2, \result=1, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=4, fibo2(n-1)=2, fibo2(n-2)=1, n=4] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=4, \result=3, fibo2(n-1)=2, fibo2(n-2)=1, n=4] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=5, fibo1(n-1)=3, n=5] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=3] [L10] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L12] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=2] [L20] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L22] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=1] [L10] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L12] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L13] return 1; VAL [\old(n)=1, \result=1, n=1] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=2, fibo1(n-1)=1, n=2] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=0] [L10] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L11] return 0; VAL [\old(n)=0, \result=0, n=0] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=2, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=2, \result=1, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=3, fibo2(n-1)=1, n=3] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L23] return 1; VAL [\old(n)=1, \result=1, n=1] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=3, fibo2(n-1)=1, fibo2(n-2)=1, n=3] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=3, \result=2, fibo2(n-1)=1, fibo2(n-2)=1, n=3] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=5, fibo1(n-1)=3, fibo1(n-2)=2, n=5] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=5, \result=5, fibo1(n-1)=3, fibo1(n-2)=2, n=5] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=6, fibo2(n-1)=5, n=6] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=4] [L20] COND FALSE !(n < 1) VAL [\old(n)=4, n=4] [L22] COND FALSE !(n == 1) VAL [\old(n)=4, n=4] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=3] [L10] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L12] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=2] [L20] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L22] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=1] [L10] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L12] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L13] return 1; VAL [\old(n)=1, \result=1, n=1] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=2, fibo1(n-1)=1, n=2] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=0] [L10] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L11] return 0; VAL [\old(n)=0, \result=0, n=0] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=2, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=2, \result=1, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=3, fibo2(n-1)=1, n=3] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L23] return 1; VAL [\old(n)=1, \result=1, n=1] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=3, fibo2(n-1)=1, fibo2(n-2)=1, n=3] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=3, \result=2, fibo2(n-1)=1, fibo2(n-2)=1, n=3] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=4, fibo1(n-1)=2, n=4] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=2] [L10] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L12] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L23] return 1; VAL [\old(n)=1, \result=1, n=1] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=2, fibo2(n-1)=1, n=2] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=0] [L20] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L21] return 0; VAL [\old(n)=0, \result=0, n=0] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=2, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=2, \result=1, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=4, fibo1(n-1)=2, fibo1(n-2)=1, n=4] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=4, \result=3, fibo1(n-1)=2, fibo1(n-2)=1, n=4] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=6, fibo2(n-1)=5, fibo2(n-2)=3, n=6] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=6, \result=8, fibo2(n-1)=5, fibo2(n-2)=3, n=6] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=7, fibo1(n-1)=8, n=7] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=5] [L10] COND FALSE !(n < 1) VAL [\old(n)=5, n=5] [L12] COND FALSE !(n == 1) VAL [\old(n)=5, n=5] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=4] [L20] COND FALSE !(n < 1) VAL [\old(n)=4, n=4] [L22] COND FALSE !(n == 1) VAL [\old(n)=4, n=4] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=3] [L10] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L12] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=2] [L20] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L22] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=1] [L10] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L12] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L13] return 1; VAL [\old(n)=1, \result=1, n=1] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=2, fibo1(n-1)=1, n=2] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=0] [L10] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L11] return 0; VAL [\old(n)=0, \result=0, n=0] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=2, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=2, \result=1, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=3, fibo2(n-1)=1, n=3] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L23] return 1; VAL [\old(n)=1, \result=1, n=1] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=3, fibo2(n-1)=1, fibo2(n-2)=1, n=3] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=3, \result=2, fibo2(n-1)=1, fibo2(n-2)=1, n=3] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=4, fibo1(n-1)=2, n=4] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=2] [L10] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L12] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L23] return 1; VAL [\old(n)=1, \result=1, n=1] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=2, fibo2(n-1)=1, n=2] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=0] [L20] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L21] return 0; VAL [\old(n)=0, \result=0, n=0] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=2, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=2, \result=1, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=4, fibo1(n-1)=2, fibo1(n-2)=1, n=4] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=4, \result=3, fibo1(n-1)=2, fibo1(n-2)=1, n=4] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=5, fibo2(n-1)=3, n=5] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=3] [L20] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L22] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=2] [L10] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L12] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L23] return 1; VAL [\old(n)=1, \result=1, n=1] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=2, fibo2(n-1)=1, n=2] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=0] [L20] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L21] return 0; VAL [\old(n)=0, \result=0, n=0] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=2, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=2, \result=1, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=3, fibo1(n-1)=1, n=3] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=1] [L10] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L12] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L13] return 1; VAL [\old(n)=1, \result=1, n=1] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=3, fibo1(n-1)=1, fibo1(n-2)=1, n=3] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=3, \result=2, fibo1(n-1)=1, fibo1(n-2)=1, n=3] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=5, fibo2(n-1)=3, fibo2(n-2)=2, n=5] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=5, \result=5, fibo2(n-1)=3, fibo2(n-2)=2, n=5] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=7, fibo1(n-1)=8, fibo1(n-2)=5, n=7] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=7, \result=13, fibo1(n-1)=8, fibo1(n-2)=5, n=7] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=8, fibo2(n-1)=13, n=8] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=6] [L20] COND FALSE !(n < 1) VAL [\old(n)=6, n=6] [L22] COND FALSE !(n == 1) VAL [\old(n)=6, n=6] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=5] [L10] COND FALSE !(n < 1) VAL [\old(n)=5, n=5] [L12] COND FALSE !(n == 1) VAL [\old(n)=5, n=5] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=4] [L20] COND FALSE !(n < 1) VAL [\old(n)=4, n=4] [L22] COND FALSE !(n == 1) VAL [\old(n)=4, n=4] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=3] [L10] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L12] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=2] [L20] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L22] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=1] [L10] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L12] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L13] return 1; VAL [\old(n)=1, \result=1, n=1] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=2, fibo1(n-1)=1, n=2] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=0] [L10] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L11] return 0; VAL [\old(n)=0, \result=0, n=0] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=2, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=2, \result=1, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=3, fibo2(n-1)=1, n=3] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L23] return 1; VAL [\old(n)=1, \result=1, n=1] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=3, fibo2(n-1)=1, fibo2(n-2)=1, n=3] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=3, \result=2, fibo2(n-1)=1, fibo2(n-2)=1, n=3] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=4, fibo1(n-1)=2, n=4] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=2] [L10] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L12] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L23] return 1; VAL [\old(n)=1, \result=1, n=1] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=2, fibo2(n-1)=1, n=2] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=0] [L20] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L21] return 0; VAL [\old(n)=0, \result=0, n=0] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=2, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=2, \result=1, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=4, fibo1(n-1)=2, fibo1(n-2)=1, n=4] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=4, \result=3, fibo1(n-1)=2, fibo1(n-2)=1, n=4] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=5, fibo2(n-1)=3, n=5] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=3] [L20] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L22] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=2] [L10] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L12] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L23] return 1; VAL [\old(n)=1, \result=1, n=1] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=2, fibo2(n-1)=1, n=2] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=0] [L20] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L21] return 0; VAL [\old(n)=0, \result=0, n=0] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=2, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=2, \result=1, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=3, fibo1(n-1)=1, n=3] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=1] [L10] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L12] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L13] return 1; VAL [\old(n)=1, \result=1, n=1] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=3, fibo1(n-1)=1, fibo1(n-2)=1, n=3] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=3, \result=2, fibo1(n-1)=1, fibo1(n-2)=1, n=3] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=5, fibo2(n-1)=3, fibo2(n-2)=2, n=5] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=5, \result=5, fibo2(n-1)=3, fibo2(n-2)=2, n=5] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=6, fibo1(n-1)=5, n=6] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=4] [L10] COND FALSE !(n < 1) VAL [\old(n)=4, n=4] [L12] COND FALSE !(n == 1) VAL [\old(n)=4, n=4] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=3] [L20] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L22] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=2] [L10] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L12] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L23] return 1; VAL [\old(n)=1, \result=1, n=1] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=2, fibo2(n-1)=1, n=2] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=0] [L20] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L21] return 0; VAL [\old(n)=0, \result=0, n=0] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=2, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=2, \result=1, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=3, fibo1(n-1)=1, n=3] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=1] [L10] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L12] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L13] return 1; VAL [\old(n)=1, \result=1, n=1] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=3, fibo1(n-1)=1, fibo1(n-2)=1, n=3] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=3, \result=2, fibo1(n-1)=1, fibo1(n-2)=1, n=3] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=4, fibo2(n-1)=2, n=4] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=2] [L20] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L22] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=1] [L10] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L12] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L13] return 1; VAL [\old(n)=1, \result=1, n=1] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=2, fibo1(n-1)=1, n=2] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=0] [L10] COND TRUE n < 1 VAL [\old(n)=0, n=0] [L11] return 0; VAL [\old(n)=0, \result=0, n=0] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=2, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=2, \result=1, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=4, fibo2(n-1)=2, fibo2(n-2)=1, n=4] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=4, \result=3, fibo2(n-1)=2, fibo2(n-2)=1, n=4] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=6, fibo1(n-1)=5, fibo1(n-2)=3, n=6] [L25] return fibo1(n-1) + fibo1(n-2); VAL [\old(n)=6, \result=8, fibo1(n-1)=5, fibo1(n-2)=3, n=6] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=8, fibo2(n-1)=13, fibo2(n-2)=8, n=8] [L15] return fibo2(n-1) + fibo2(n-2); VAL [\old(n)=8, \result=21, fibo2(n-1)=13, fibo2(n-2)=8, n=8] [L39] RET, EXPR fibo1(x) VAL [fibo1(x)=21, x=8] [L39] int result = fibo1(x); VAL [fibo1(x)=21, result=21, x=8] [L40] COND TRUE result == 21 VAL [result=21, x=8] [L41] reach_error() VAL [result=21, x=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.7s, OverallIterations: 22, TraceHistogramMax: 39, AutomataDifference: 19.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1144 SDtfs, 2793 SDslu, 2668 SDs, 0 SdLazy, 10241 SolverSat, 1666 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1474 GetRequests, 925 SyntacticMatches, 0 SemanticMatches, 549 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5028 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 21 MinimizatonAttempts, 263 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 4593 NumberOfCodeBlocks, 4593 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3966 ConstructedInterpolants, 0 QuantifiedInterpolants, 2273456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 2 PerfectInterpolantSequences, 19456/25004 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...