/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 15:55:45,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 15:55:45,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 15:55:46,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 15:55:46,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 15:55:46,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 15:55:46,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 15:55:46,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 15:55:46,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 15:55:46,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 15:55:46,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 15:55:46,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 15:55:46,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 15:55:46,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 15:55:46,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 15:55:46,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 15:55:46,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 15:55:46,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 15:55:46,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 15:55:46,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 15:55:46,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 15:55:46,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 15:55:46,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 15:55:46,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 15:55:46,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 15:55:46,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 15:55:46,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 15:55:46,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 15:55:46,107 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-21 15:55:46,155 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 15:55:46,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 15:55:46,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 15:55:46,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 15:55:46,162 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 15:55:46,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 15:55:46,162 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 15:55:46,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 15:55:46,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 15:55:46,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 15:55:46,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 15:55:46,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 15:55:46,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 15:55:46,164 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 15:55:46,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 15:55:46,165 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 15:55:46,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 15:55:46,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 15:55:46,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 15:55:46,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 15:55:46,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 15:55:46,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 15:55:46,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 15:55:46,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 15:55:46,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 15:55:46,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 15:55:46,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 15:55:46,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 15:55:46,167 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 15:55:46,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 15:55:46,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 15:55:46,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 15:55:46,683 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 15:55:46,684 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 15:55:46,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_2-1.c [2021-02-21 15:55:46,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bfea244f/2d2b755dc7d8464b829de2c26e672c39/FLAG88241ce6c [2021-02-21 15:55:47,609 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 15:55:47,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_2-1.c [2021-02-21 15:55:47,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bfea244f/2d2b755dc7d8464b829de2c26e672c39/FLAG88241ce6c [2021-02-21 15:55:47,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bfea244f/2d2b755dc7d8464b829de2c26e672c39 [2021-02-21 15:55:47,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 15:55:47,967 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 15:55:47,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 15:55:47,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 15:55:47,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 15:55:47,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:55:47" (1/1) ... [2021-02-21 15:55:47,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6662e577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:55:47, skipping insertion in model container [2021-02-21 15:55:47,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:55:47" (1/1) ... [2021-02-21 15:55:47,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 15:55:48,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 15:55:48,172 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_2-1.c[946,959] [2021-02-21 15:55:48,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:55:48,188 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 15:55:48,207 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_2-1.c[946,959] [2021-02-21 15:55:48,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:55:48,225 INFO L208 MainTranslator]: Completed translation [2021-02-21 15:55:48,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:55:48 WrapperNode [2021-02-21 15:55:48,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 15:55:48,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 15:55:48,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 15:55:48,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 15:55:48,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:55:48" (1/1) ... [2021-02-21 15:55:48,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:55:48" (1/1) ... [2021-02-21 15:55:48,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:55:48" (1/1) ... [2021-02-21 15:55:48,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:55:48" (1/1) ... [2021-02-21 15:55:48,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:55:48" (1/1) ... [2021-02-21 15:55:48,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:55:48" (1/1) ... [2021-02-21 15:55:48,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:55:48" (1/1) ... [2021-02-21 15:55:48,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 15:55:48,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 15:55:48,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 15:55:48,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 15:55:48,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:55:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 15:55:48,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 15:55:48,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 15:55:48,370 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 15:55:48,370 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2021-02-21 15:55:48,370 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2021-02-21 15:55:48,370 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 15:55:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 15:55:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 15:55:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 15:55:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 15:55:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 15:55:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2021-02-21 15:55:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2021-02-21 15:55:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 15:55:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 15:55:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 15:55:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 15:55:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 15:55:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 15:55:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 15:55:48,670 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 15:55:48,674 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-21 15:55:48,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:55:48 BoogieIcfgContainer [2021-02-21 15:55:48,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 15:55:48,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 15:55:48,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 15:55:48,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 15:55:48,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:55:47" (1/3) ... [2021-02-21 15:55:48,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624f8a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:55:48, skipping insertion in model container [2021-02-21 15:55:48,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:55:48" (2/3) ... [2021-02-21 15:55:48,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624f8a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:55:48, skipping insertion in model container [2021-02-21 15:55:48,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:55:48" (3/3) ... [2021-02-21 15:55:48,712 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_2calls_2-1.c [2021-02-21 15:55:48,736 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 15:55:48,751 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 15:55:48,797 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 15:55:48,834 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 15:55:48,834 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 15:55:48,862 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 15:55:48,863 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 15:55:48,863 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 15:55:48,863 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 15:55:48,863 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 15:55:48,863 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 15:55:48,917 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2021-02-21 15:55:48,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-21 15:55:48,953 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:55:48,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 15:55:48,959 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:55:48,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:55:48,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1412692817, now seen corresponding path program 1 times [2021-02-21 15:55:48,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:55:48,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515503459] [2021-02-21 15:55:49,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:55:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:55:49,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:49,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:49,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:49,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:49,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:49,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:49,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:55:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:55:49,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:49,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:49,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:55:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:55:49,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:49,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:49,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:49,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:49,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:55:49,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515503459] [2021-02-21 15:55:49,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:55:49,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 15:55:49,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487845448] [2021-02-21 15:55:49,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 15:55:49,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:55:49,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 15:55:49,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-21 15:55:49,525 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 6 states. [2021-02-21 15:55:49,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:55:49,937 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2021-02-21 15:55:49,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 15:55:49,939 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2021-02-21 15:55:49,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:55:49,951 INFO L225 Difference]: With dead ends: 45 [2021-02-21 15:55:49,951 INFO L226 Difference]: Without dead ends: 31 [2021-02-21 15:55:49,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-02-21 15:55:49,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-02-21 15:55:50,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-02-21 15:55:50,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-02-21 15:55:50,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-02-21 15:55:50,036 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 14 [2021-02-21 15:55:50,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:55:50,036 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-02-21 15:55:50,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 15:55:50,037 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2021-02-21 15:55:50,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-02-21 15:55:50,040 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:55:50,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 15:55:50,041 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 15:55:50,041 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:55:50,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:55:50,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1554435945, now seen corresponding path program 1 times [2021-02-21 15:55:50,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:55:50,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825403611] [2021-02-21 15:55:50,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:55:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:55:50,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:50,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:55:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:55:50,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:55:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:55:50,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:50,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:55:50,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825403611] [2021-02-21 15:55:50,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:55:50,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 15:55:50,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191305928] [2021-02-21 15:55:50,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 15:55:50,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:55:50,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 15:55:50,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-21 15:55:50,251 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 6 states. [2021-02-21 15:55:50,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:55:50,540 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2021-02-21 15:55:50,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 15:55:50,544 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-02-21 15:55:50,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:55:50,548 INFO L225 Difference]: With dead ends: 37 [2021-02-21 15:55:50,548 INFO L226 Difference]: Without dead ends: 33 [2021-02-21 15:55:50,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-02-21 15:55:50,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-02-21 15:55:50,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-02-21 15:55:50,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-02-21 15:55:50,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-02-21 15:55:50,570 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 15 [2021-02-21 15:55:50,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:55:50,571 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-02-21 15:55:50,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 15:55:50,571 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2021-02-21 15:55:50,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-21 15:55:50,573 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:55:50,573 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 15:55:50,574 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 15:55:50,574 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:55:50,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:55:50,575 INFO L82 PathProgramCache]: Analyzing trace with hash 317474724, now seen corresponding path program 1 times [2021-02-21 15:55:50,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:55:50,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752235284] [2021-02-21 15:55:50,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:55:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:55:50,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:50,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:55:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:55:50,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:55:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:55:50,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,750 WARN L141 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size [2021-02-21 15:55:50,750 WARN L147 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size 3 [2021-02-21 15:55:50,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:55:50,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 15:55:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:55:50,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:50,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:50,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 15:55:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:55:50,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,834 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-21 15:55:50,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752235284] [2021-02-21 15:55:50,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076087480] [2021-02-21 15:55:50,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-21 15:55:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:55:50,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2021-02-21 15:55:50,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-21 15:55:50,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:50,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:50,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:50,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:50,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:50,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 15:55:50,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:50,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:50,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:55:51,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 15:55:51,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:55:51,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:55:51,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 15:55:51,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:55:51,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 15:55:51,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:55:51,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:55:51,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 15:55:51,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 15:55:51,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 15:55:51,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 15:55:51,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 15:55:51,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 15:55:51,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 15:55:51,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 15:55:51,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 15:55:51,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 15:55:51,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 15:55:51,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 15:55:51,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-21 15:55:51,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-21 15:55:51,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 15:55:51,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:55:51,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 15:55:51,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:55:51,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:55:51,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:55:51,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 15:55:51,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 15:55:51,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 15:55:51,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 15:55:51,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 15:55:51,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 15:55:51,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 15:55:51,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 15:55:51,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 15:55:51,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:55:51,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:55:51,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-21 15:55:51,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-21 15:55:51,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-02-21 15:55:51,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349787225] [2021-02-21 15:55:51,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-21 15:55:51,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:55:51,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-21 15:55:51,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-02-21 15:55:51,217 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 12 states. [2021-02-21 15:55:51,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:55:51,716 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2021-02-21 15:55:51,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-21 15:55:51,717 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2021-02-21 15:55:51,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:55:51,721 INFO L225 Difference]: With dead ends: 59 [2021-02-21 15:55:51,721 INFO L226 Difference]: Without dead ends: 35 [2021-02-21 15:55:51,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-02-21 15:55:51,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-02-21 15:55:51,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2021-02-21 15:55:51,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-02-21 15:55:51,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2021-02-21 15:55:51,752 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 27 [2021-02-21 15:55:51,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:55:51,752 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2021-02-21 15:55:51,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-21 15:55:51,752 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2021-02-21 15:55:51,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-21 15:55:51,755 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:55:51,755 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] [2021-02-21 15:55:51,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-02-21 15:55:51,958 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:55:51,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:55:51,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1560358132, now seen corresponding path program 1 times [2021-02-21 15:55:51,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:55:51,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859365450] [2021-02-21 15:55:51,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:55:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:55:52,008 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:55:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:55:52,037 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:55:52,073 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 15:55:52,073 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 15:55:52,074 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 15:55:52,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:55:52 BoogieIcfgContainer [2021-02-21 15:55:52,135 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 15:55:52,136 INFO L168 Benchmark]: Toolchain (without parser) took 4181.97 ms. Allocated memory was 155.2 MB in the beginning and 188.7 MB in the end (delta: 33.6 MB). Free memory was 130.4 MB in the beginning and 113.1 MB in the end (delta: 17.3 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. [2021-02-21 15:55:52,137 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 15:55:52,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.61 ms. Allocated memory is still 155.2 MB. Free memory was 129.3 MB in the beginning and 119.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-21 15:55:52,137 INFO L168 Benchmark]: Boogie Preprocessor took 33.33 ms. Allocated memory is still 155.2 MB. Free memory was 119.8 MB in the beginning and 118.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 15:55:52,138 INFO L168 Benchmark]: RCFGBuilder took 415.33 ms. Allocated memory is still 155.2 MB. Free memory was 118.5 MB in the beginning and 104.1 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-21 15:55:52,138 INFO L168 Benchmark]: TraceAbstraction took 3450.59 ms. Allocated memory was 155.2 MB in the beginning and 188.7 MB in the end (delta: 33.6 MB). Free memory was 103.7 MB in the beginning and 113.1 MB in the end (delta: -9.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-02-21 15:55:52,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 257.61 ms. Allocated memory is still 155.2 MB. Free memory was 129.3 MB in the beginning and 119.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.33 ms. Allocated memory is still 155.2 MB. Free memory was 119.8 MB in the beginning and 118.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 415.33 ms. Allocated memory is still 155.2 MB. Free memory was 118.5 MB in the beginning and 104.1 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3450.59 ms. Allocated memory was 155.2 MB in the beginning and 188.7 MB in the end (delta: 33.6 MB). Free memory was 103.7 MB in the beginning and 113.1 MB in the end (delta: -9.4 MB). Peak memory consumption was 25.2 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 = 2; VAL [x=2] [L39] CALL, EXPR fibo1(x) 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 [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 [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); [L39] RET, EXPR fibo1(x) VAL [fibo1(x)=1, x=2] [L39] int result = fibo1(x); [L40] COND TRUE result == 1 VAL [result=1, x=2] [L41] reach_error() VAL [result=1, x=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 78 SDtfs, 125 SDslu, 108 SDs, 0 SdLazy, 370 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 4487 SizeOfPredicates, 3 NumberOfNonLiveVariables, 123 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/8 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...