/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-36cd7be [2021-02-23 13:21:58,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:21:58,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:21:58,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 13:21:58,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 13:21:58,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 13:21:58,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 13:21:58,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 13:21:58,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 13:21:58,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 13:21:58,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 13:21:58,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 13:21:58,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:21:58,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:21:58,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:21:58,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:21:58,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:21:58,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:21:58,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:21:58,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:21:58,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:21:58,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:21:58,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:21:58,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:21:58,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 13:21:58,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:21:58,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:21:58,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:21:58,216 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 [2021-02-23 13:21:58,254 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:21:58,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:21:58,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:21:58,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:21:58,259 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:21:58,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:21:58,261 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:21:58,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:21:58,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:21:58,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:21:58,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:21:58,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:21:58,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:21:58,263 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:21:58,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:21:58,263 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:21:58,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:21:58,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:21:58,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:21:58,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:21:58,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:21:58,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:21:58,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:21:58,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:21:58,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:21:58,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:21:58,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:21:58,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:21:58,267 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:21:58,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:21:58,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:21:58,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:21:58,720 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:21:58,720 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:21:58,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_2-1.c [2021-02-23 13:21:58,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e0eb150e/e2f6a660a10c4131b84cfdd323c2473d/FLAGd5ec86cbb [2021-02-23 13:21:59,484 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:21:59,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_2-1.c [2021-02-23 13:21:59,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e0eb150e/e2f6a660a10c4131b84cfdd323c2473d/FLAGd5ec86cbb [2021-02-23 13:21:59,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e0eb150e/e2f6a660a10c4131b84cfdd323c2473d [2021-02-23 13:21:59,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:21:59,852 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:21:59,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:21:59,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:21:59,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:21:59,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:21:59" (1/1) ... [2021-02-23 13:21:59,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42cf06fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:21:59, skipping insertion in model container [2021-02-23 13:21:59,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:21:59" (1/1) ... [2021-02-23 13:21:59,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:21:59,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:22:00,059 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] [2021-02-23 13:22:00,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:22:00,075 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:22:00,108 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] [2021-02-23 13:22:00,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:22:00,123 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:22:00,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:22:00 WrapperNode [2021-02-23 13:22:00,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:22:00,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:22:00,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:22:00,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:22:00,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:22:00" (1/1) ... [2021-02-23 13:22:00,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:22:00" (1/1) ... [2021-02-23 13:22:00,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:22:00" (1/1) ... [2021-02-23 13:22:00,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:22:00" (1/1) ... [2021-02-23 13:22:00,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:22:00" (1/1) ... [2021-02-23 13:22:00,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:22:00" (1/1) ... [2021-02-23 13:22:00,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:22:00" (1/1) ... [2021-02-23 13:22:00,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:22:00,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:22:00,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:22:00,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:22:00,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:22:00" (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 13:22:00,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:22:00,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:22:00,278 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:22:00,279 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2021-02-23 13:22:00,279 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2021-02-23 13:22:00,279 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:22:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 13:22:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:22:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:22:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:22:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:22:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2021-02-23 13:22:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2021-02-23 13:22:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:22:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:22:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:22:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:22:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:22:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:22:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:22:00,539 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:22:00,539 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 13:22:00,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:22:00 BoogieIcfgContainer [2021-02-23 13:22:00,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:22:00,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:22:00,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:22:00,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:22:00,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:21:59" (1/3) ... [2021-02-23 13:22:00,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7ba246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:22:00, skipping insertion in model container [2021-02-23 13:22:00,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:22:00" (2/3) ... [2021-02-23 13:22:00,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7ba246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:22:00, skipping insertion in model container [2021-02-23 13:22:00,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:22:00" (3/3) ... [2021-02-23 13:22:00,552 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_2calls_2-1.c [2021-02-23 13:22:00,560 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:22:00,566 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:22:00,590 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:22:00,625 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:22:00,625 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:22:00,626 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:22:00,626 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:22:00,626 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:22:00,626 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:22:00,626 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:22:00,626 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:22:00,665 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2021-02-23 13:22:00,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-23 13:22:00,681 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:22:00,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:22:00,686 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:22:00,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:22:00,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1412692817, now seen corresponding path program 1 times [2021-02-23 13:22:00,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:22:00,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891378421] [2021-02-23 13:22:00,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:22:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:22:01,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:01,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:01,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:01,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:01,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:01,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:01,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:22:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:22:01,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:01,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:01,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 13:22:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:22:01,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:01,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:01,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:01,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:01,310 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 13:22:01,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891378421] [2021-02-23 13:22:01,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:22:01,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 13:22:01,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618679951] [2021-02-23 13:22:01,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 13:22:01,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:22:01,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 13:22:01,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-23 13:22:01,339 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 6 states. [2021-02-23 13:22:01,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:22:01,639 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2021-02-23 13:22:01,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 13:22:01,641 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2021-02-23 13:22:01,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:22:01,652 INFO L225 Difference]: With dead ends: 45 [2021-02-23 13:22:01,652 INFO L226 Difference]: Without dead ends: 31 [2021-02-23 13:22:01,656 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 [2021-02-23 13:22:01,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-02-23 13:22:01,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-02-23 13:22:01,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-02-23 13:22:01,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-02-23 13:22:01,716 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 14 [2021-02-23 13:22:01,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:22:01,717 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-02-23 13:22:01,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 13:22:01,717 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2021-02-23 13:22:01,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-02-23 13:22:01,719 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:22:01,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:22:01,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:22:01,720 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:22:01,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:22:01,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1554435945, now seen corresponding path program 1 times [2021-02-23 13:22:01,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:22:01,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722571421] [2021-02-23 13:22:01,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:22:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:22:01,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:01,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:01,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:01,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:01,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:01,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:01,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:22:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:22:01,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:01,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:01,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 13:22:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:22:01,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:01,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:01,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:01,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:01,849 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 13:22:01,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722571421] [2021-02-23 13:22:01,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:22:01,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 13:22:01,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873609932] [2021-02-23 13:22:01,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 13:22:01,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:22:01,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 13:22:01,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-23 13:22:01,854 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 6 states. [2021-02-23 13:22:02,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:22:02,120 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2021-02-23 13:22:02,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 13:22:02,121 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-02-23 13:22:02,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:22:02,122 INFO L225 Difference]: With dead ends: 37 [2021-02-23 13:22:02,123 INFO L226 Difference]: Without dead ends: 33 [2021-02-23 13:22:02,124 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 [2021-02-23 13:22:02,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-02-23 13:22:02,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-02-23 13:22:02,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-02-23 13:22:02,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-02-23 13:22:02,136 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 15 [2021-02-23 13:22:02,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:22:02,136 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-02-23 13:22:02,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 13:22:02,136 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2021-02-23 13:22:02,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-23 13:22:02,138 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:22:02,138 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] [2021-02-23 13:22:02,138 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 13:22:02,139 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:22:02,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:22:02,139 INFO L82 PathProgramCache]: Analyzing trace with hash 317474724, now seen corresponding path program 1 times [2021-02-23 13:22:02,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:22:02,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251207485] [2021-02-23 13:22:02,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:22:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:22:02,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:22:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:22:02,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 13:22:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:22:02,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,239 WARN L141 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size [2021-02-23 13:22:02,240 WARN L147 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size 3 [2021-02-23 13:22:02,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:22:02,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 13:22:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:22:02,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 13:22:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:22:02,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,288 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 13:22:02,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251207485] [2021-02-23 13:22:02,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709587454] [2021-02-23 13:22:02,289 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 [2021-02-23 13:22:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:22:02,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2021-02-23 13:22:02,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-23 13:22:02,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:22:02,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:22:02,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:22:02,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:22:02,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:22:02,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:22:02,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:22:02,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:22:02,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:22:02,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:22:02,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:22:02,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:22:02,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:22:02,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 13:22:02,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 13:22:02,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:22:02,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 13:22:02,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 13:22:02,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:22:02,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:22:02,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 13:22:02,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 13:22:02,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 13:22:02,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 13:22:02,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:22:02,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:22:02,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:22:02,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:22:02,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:22:02,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:22:02,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:22:02,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:22:02,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 13:22:02,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:22:02,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:22:02,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:22:02,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 13:22:02,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 13:22:02,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 13:22:02,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:22:02,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:22:02,743 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 13:22:02,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-23 13:22:02,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-02-23 13:22:02,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716441339] [2021-02-23 13:22:02,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 13:22:02,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:22:02,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 13:22:02,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-02-23 13:22:02,747 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 12 states. [2021-02-23 13:22:03,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:22:03,261 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2021-02-23 13:22:03,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 13:22:03,262 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2021-02-23 13:22:03,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:22:03,263 INFO L225 Difference]: With dead ends: 59 [2021-02-23 13:22:03,263 INFO L226 Difference]: Without dead ends: 35 [2021-02-23 13:22:03,265 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 [2021-02-23 13:22:03,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-02-23 13:22:03,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2021-02-23 13:22:03,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-02-23 13:22:03,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2021-02-23 13:22:03,275 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 27 [2021-02-23 13:22:03,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:22:03,275 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2021-02-23 13:22:03,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 13:22:03,276 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2021-02-23 13:22:03,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-23 13:22:03,277 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:22:03,277 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] [2021-02-23 13:22:03,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-02-23 13:22:03,491 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:22:03,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:22:03,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1560358132, now seen corresponding path program 1 times [2021-02-23 13:22:03,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:22:03,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481030403] [2021-02-23 13:22:03,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:22:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:22:03,516 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:22:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:22:03,533 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:22:03,559 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 13:22:03,559 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 13:22:03,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 13:22:03,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:22:03 BoogieIcfgContainer [2021-02-23 13:22:03,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:22:03,622 INFO L168 Benchmark]: Toolchain (without parser) took 3784.46 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 132.6 MB in the beginning and 88.7 MB in the end (delta: 43.9 MB). Peak memory consumption was 76.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:22:03,622 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 157.3 MB. Free memory was 130.0 MB in the beginning and 129.8 MB in the end (delta: 152.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:22:03,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.34 ms. Allocated memory is still 157.3 MB. Free memory was 131.4 MB in the beginning and 122.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 13:22:03,623 INFO L168 Benchmark]: Boogie Preprocessor took 37.97 ms. Allocated memory is still 157.3 MB. Free memory was 122.1 MB in the beginning and 120.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:22:03,623 INFO L168 Benchmark]: RCFGBuilder took 377.22 ms. Allocated memory is still 157.3 MB. Free memory was 120.7 MB in the beginning and 138.2 MB in the end (delta: -17.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:22:03,624 INFO L168 Benchmark]: TraceAbstraction took 3077.19 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 137.7 MB in the beginning and 88.7 MB in the end (delta: 49.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:22:03,625 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 157.3 MB. Free memory was 130.0 MB in the beginning and 129.8 MB in the end (delta: 152.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 270.34 ms. Allocated memory is still 157.3 MB. Free memory was 131.4 MB in the beginning and 122.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.97 ms. Allocated memory is still 157.3 MB. Free memory was 122.1 MB in the beginning and 120.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 377.22 ms. Allocated memory is still 157.3 MB. Free memory was 120.7 MB in the beginning and 138.2 MB in the end (delta: -17.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3077.19 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 137.7 MB in the beginning and 88.7 MB in the end (delta: 49.0 MB). Peak memory consumption was 81.0 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: 2.9s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.1s, 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s 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...