/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/array-tiling/skippedu.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 16:24:47,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:24:47,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:24:47,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 16:24:47,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 16:24:47,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 16:24:47,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 16:24:47,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 16:24:47,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 16:24:47,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 16:24:47,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 16:24:47,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 16:24:47,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 16:24:47,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 16:24:47,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 16:24:47,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 16:24:47,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 16:24:47,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 16:24:47,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 16:24:47,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 16:24:47,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 16:24:47,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 16:24:47,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 16:24:47,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 16:24:47,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 16:24:47,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 16:24:47,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 16:24:47,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 16:24:47,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 16:24:47,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 16:24:47,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 16:24:47,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 16:24:47,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 16:24:47,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 16:24:47,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 16:24:47,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 16:24:47,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 16:24:47,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 16:24:47,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 16:24:47,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 16:24:47,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 16:24:47,674 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 16:24:47,727 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:24:47,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:24:47,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:24:47,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:24:47,732 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:24:47,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:24:47,733 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:24:47,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:24:47,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:24:47,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:24:47,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:24:47,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:24:47,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:24:47,735 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:24:47,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:24:47,735 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:24:47,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:24:47,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:24:47,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:24:47,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:24:47,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:24:47,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:24:47,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:24:47,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:24:47,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:24:47,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:24:47,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:24:47,738 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:24:47,738 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:24:48,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:24:48,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:24:48,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:24:48,213 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:24:48,213 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:24:48,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/skippedu.c [2021-02-21 16:24:48,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad598fae/48d22dd182e7402fae4db827136ee94f/FLAG9e41a2382 [2021-02-21 16:24:48,977 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:24:48,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/skippedu.c [2021-02-21 16:24:48,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad598fae/48d22dd182e7402fae4db827136ee94f/FLAG9e41a2382 [2021-02-21 16:24:49,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad598fae/48d22dd182e7402fae4db827136ee94f [2021-02-21 16:24:49,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:24:49,373 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:24:49,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:24:49,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:24:49,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:24:49,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:24:49" (1/1) ... [2021-02-21 16:24:49,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea768f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:24:49, skipping insertion in model container [2021-02-21 16:24:49,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:24:49" (1/1) ... [2021-02-21 16:24:49,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:24:49,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:24:49,554 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/skippedu.c[399,412] [2021-02-21 16:24:49,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:24:49,590 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:24:49,605 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/skippedu.c[399,412] [2021-02-21 16:24:49,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:24:49,637 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:24:49,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:24:49 WrapperNode [2021-02-21 16:24:49,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:24:49,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:24:49,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:24:49,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:24:49,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:24:49" (1/1) ... [2021-02-21 16:24:49,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:24:49" (1/1) ... [2021-02-21 16:24:49,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:24:49" (1/1) ... [2021-02-21 16:24:49,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:24:49" (1/1) ... [2021-02-21 16:24:49,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:24:49" (1/1) ... [2021-02-21 16:24:49,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:24:49" (1/1) ... [2021-02-21 16:24:49,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:24:49" (1/1) ... [2021-02-21 16:24:49,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:24:49,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:24:49,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:24:49,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:24:49,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:24:49" (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 16:24:49,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:24:49,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:24:49,802 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:24:49,802 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-21 16:24:49,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 16:24:49,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:24:49,803 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:24:49,803 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:24:49,803 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:24:49,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:24:49,803 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-21 16:24:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 16:24:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 16:24:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 16:24:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:24:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 16:24:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:24:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:24:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:24:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:24:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:24:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:24:50,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:24:50,305 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-02-21 16:24:50,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:24:50 BoogieIcfgContainer [2021-02-21 16:24:50,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:24:50,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:24:50,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:24:50,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:24:50,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:24:49" (1/3) ... [2021-02-21 16:24:50,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595b7b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:24:50, skipping insertion in model container [2021-02-21 16:24:50,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:24:49" (2/3) ... [2021-02-21 16:24:50,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595b7b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:24:50, skipping insertion in model container [2021-02-21 16:24:50,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:24:50" (3/3) ... [2021-02-21 16:24:50,319 INFO L111 eAbstractionObserver]: Analyzing ICFG skippedu.c [2021-02-21 16:24:50,327 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:24:50,333 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 16:24:50,355 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 16:24:50,393 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:24:50,393 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:24:50,393 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:24:50,393 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:24:50,393 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:24:50,394 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:24:50,394 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:24:50,394 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:24:50,415 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2021-02-21 16:24:50,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-02-21 16:24:50,422 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:24:50,423 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:24:50,424 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:24:50,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:24:50,431 INFO L82 PathProgramCache]: Analyzing trace with hash 535893130, now seen corresponding path program 1 times [2021-02-21 16:24:50,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:24:50,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396278801] [2021-02-21 16:24:50,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:24:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:24:50,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:50,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:50,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:50,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:50,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:50,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:50,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:24:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:24:50,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:50,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:50,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 16:24:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:24:50,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:50,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:50,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:50,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:50,818 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 16:24:50,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396278801] [2021-02-21 16:24:50,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:24:50,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 16:24:50,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323950431] [2021-02-21 16:24:50,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 16:24:50,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:24:50,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 16:24:50,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 16:24:50,849 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 4 states. [2021-02-21 16:24:51,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:24:51,100 INFO L93 Difference]: Finished difference Result 67 states and 90 transitions. [2021-02-21 16:24:51,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 16:24:51,103 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2021-02-21 16:24:51,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:24:51,110 INFO L225 Difference]: With dead ends: 67 [2021-02-21 16:24:51,111 INFO L226 Difference]: Without dead ends: 34 [2021-02-21 16:24:51,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 16:24:51,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-02-21 16:24:51,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-02-21 16:24:51,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-02-21 16:24:51,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2021-02-21 16:24:51,159 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 22 [2021-02-21 16:24:51,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:24:51,159 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2021-02-21 16:24:51,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 16:24:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2021-02-21 16:24:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-21 16:24:51,161 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:24:51,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:24:51,162 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:24:51,162 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:24:51,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:24:51,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1366996202, now seen corresponding path program 1 times [2021-02-21 16:24:51,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:24:51,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133012656] [2021-02-21 16:24:51,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:24:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:24:51,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:51,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:24:51,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:24:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:24:51,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-21 16:24:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:24:51,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:24:51,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133012656] [2021-02-21 16:24:51,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510807969] [2021-02-21 16:24:51,356 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 16:24:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:24:51,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2021-02-21 16:24:51,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-21 16:24:51,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:51,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:51,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:51,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:51,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:51,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:51,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:51,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:51,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:24:51,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 16:24:51,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 16:24:51,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:24:51,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 16:24:51,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 16:24:51,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 16:24:51,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:51,677 WARN L141 QuantifierPusher]: treesize reduction 1, result has 90.9 percent of original size [2021-02-21 16:24:51,679 WARN L147 QuantifierPusher]: treesize reduction 1, result has 90.9 percent of original size 10 [2021-02-21 16:24:51,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:24:51,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 16:24:51,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 16:24:51,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 16:24:51,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:51,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:51,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:24:51,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-21 16:24:51,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2021-02-21 16:24:51,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350719783] [2021-02-21 16:24:51,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 16:24:51,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:24:51,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 16:24:51,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-02-21 16:24:51,833 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 7 states. [2021-02-21 16:24:52,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:24:52,072 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2021-02-21 16:24:52,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 16:24:52,073 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2021-02-21 16:24:52,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:24:52,075 INFO L225 Difference]: With dead ends: 59 [2021-02-21 16:24:52,075 INFO L226 Difference]: Without dead ends: 36 [2021-02-21 16:24:52,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-02-21 16:24:52,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-02-21 16:24:52,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2021-02-21 16:24:52,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-02-21 16:24:52,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-02-21 16:24:52,086 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2021-02-21 16:24:52,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:24:52,087 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-02-21 16:24:52,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 16:24:52,087 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-02-21 16:24:52,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-21 16:24:52,089 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:24:52,089 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] [2021-02-21 16:24:52,305 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-02-21 16:24:52,306 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:24:52,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:24:52,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1779937352, now seen corresponding path program 2 times [2021-02-21 16:24:52,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:24:52,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000562725] [2021-02-21 16:24:52,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:24:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:24:52,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:52,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:52,406 WARN L141 QuantifierPusher]: treesize reduction 56, result has 5.1 percent of original size [2021-02-21 16:24:52,407 WARN L147 QuantifierPusher]: treesize reduction 56, result has 5.1 percent of original size 3 [2021-02-21 16:24:52,417 WARN L141 QuantifierPusher]: treesize reduction 61, result has 29.1 percent of original size [2021-02-21 16:24:52,419 WARN L147 QuantifierPusher]: treesize reduction 61, result has 29.1 percent of original size 25 [2021-02-21 16:24:52,453 WARN L141 QuantifierPusher]: treesize reduction 63, result has 30.8 percent of original size [2021-02-21 16:24:52,456 WARN L147 QuantifierPusher]: treesize reduction 63, result has 30.8 percent of original size 28 [2021-02-21 16:24:52,505 WARN L141 QuantifierPusher]: treesize reduction 49, result has 50.0 percent of original size [2021-02-21 16:24:52,507 WARN L147 QuantifierPusher]: treesize reduction 49, result has 50.0 percent of original size 49 [2021-02-21 16:24:52,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:52,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:52,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:24:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:24:52,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:52,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:52,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 16:24:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:24:52,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:52,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:52,594 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-21 16:24:52,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000562725] [2021-02-21 16:24:52,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:24:52,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 16:24:52,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754796758] [2021-02-21 16:24:52,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 16:24:52,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:24:52,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 16:24:52,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-02-21 16:24:52,597 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 6 states. [2021-02-21 16:24:52,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:24:52,835 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2021-02-21 16:24:52,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 16:24:52,835 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2021-02-21 16:24:52,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:24:52,837 INFO L225 Difference]: With dead ends: 51 [2021-02-21 16:24:52,837 INFO L226 Difference]: Without dead ends: 40 [2021-02-21 16:24:52,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-02-21 16:24:52,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-02-21 16:24:52,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2021-02-21 16:24:52,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-02-21 16:24:52,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2021-02-21 16:24:52,846 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 26 [2021-02-21 16:24:52,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:24:52,847 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2021-02-21 16:24:52,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 16:24:52,847 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2021-02-21 16:24:52,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-21 16:24:52,848 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:24:52,848 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:24:52,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 16:24:52,849 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:24:52,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:24:52,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1702830002, now seen corresponding path program 1 times [2021-02-21 16:24:52,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:24:52,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564292418] [2021-02-21 16:24:52,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:24:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:24:52,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:52,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:52,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,011 WARN L141 QuantifierPusher]: treesize reduction 4, result has 75.0 percent of original size [2021-02-21 16:24:53,012 WARN L147 QuantifierPusher]: treesize reduction 4, result has 75.0 percent of original size 12 [2021-02-21 16:24:53,034 WARN L141 QuantifierPusher]: treesize reduction 5, result has 90.0 percent of original size [2021-02-21 16:24:53,036 WARN L147 QuantifierPusher]: treesize reduction 5, result has 90.0 percent of original size 45 [2021-02-21 16:24:53,075 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-02-21 16:24:53,078 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-02-21 16:24:53,094 WARN L141 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-02-21 16:24:53,095 WARN L147 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size 11 [2021-02-21 16:24:53,114 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size [2021-02-21 16:24:53,115 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size 27 [2021-02-21 16:24:53,153 WARN L141 QuantifierPusher]: treesize reduction 15, result has 31.8 percent of original size [2021-02-21 16:24:53,154 WARN L147 QuantifierPusher]: treesize reduction 15, result has 31.8 percent of original size 7 [2021-02-21 16:24:53,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:24:53,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:24:53,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:24:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:24:53,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-21 16:24:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:24:53,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,291 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-21 16:24:53,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564292418] [2021-02-21 16:24:53,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971256644] [2021-02-21 16:24:53,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-21 16:24:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:24:53,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 20 conjunts are in the unsatisfiable core [2021-02-21 16:24:53,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-21 16:24:53,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-21 16:24:53,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-21 16:24:53,495 WARN L141 QuantifierPusher]: treesize reduction 22, result has 29.0 percent of original size [2021-02-21 16:24:53,496 WARN L147 QuantifierPusher]: treesize reduction 22, result has 29.0 percent of original size 9 [2021-02-21 16:24:53,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 16:24:53,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 16:24:53,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 16:24:53,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 16:24:53,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 16:24:53,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 16:24:53,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 16:24:53,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 16:24:53,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 16:24:53,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-21 16:24:53,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 16:24:53,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 16:24:53,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 16:24:53,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 16:24:53,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 16:24:53,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 16:24:53,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 16:24:53,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-21 16:24:53,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:24:53,619 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.8 percent of original size [2021-02-21 16:24:53,619 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.8 percent of original size 45 [2021-02-21 16:24:53,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-21 16:24:53,624 WARN L141 QuantifierPusher]: treesize reduction 32, result has 38.5 percent of original size [2021-02-21 16:24:53,629 WARN L147 QuantifierPusher]: treesize reduction 32, result has 38.5 percent of original size 20 [2021-02-21 16:24:53,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:24:53,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 16:24:53,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-21 16:24:53,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:24:53,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 16:24:53,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-21 16:24:53,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:24:53,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 16:24:53,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-21 16:24:53,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-02-21 16:24:53,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-21 16:24:53,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-21 16:24:53,704 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-21 16:24:53,710 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 16:24:53,714 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-02-21 16:24:53,714 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2021-02-21 16:24:53,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 16:24:53,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 16:24:53,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 16:24:53,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 16:24:53,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 16:24:53,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 16:24:53,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:24:53,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-21 16:24:53,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-21 16:24:53,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:24:53,755 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-02-21 16:24:53,755 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size 21 [2021-02-21 16:24:53,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-21 16:24:53,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:24:53,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-21 16:24:53,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-21 16:24:53,778 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-02-21 16:24:53,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-02-21 16:24:53,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-21 16:24:53,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 16:24:53,782 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-21 16:24:53,787 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 16:24:53,789 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-02-21 16:24:53,789 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17 [2021-02-21 16:24:53,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 16:24:53,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 16:24:53,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 16:24:53,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 16:24:53,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 16:24:53,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 16:24:53,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 16:24:53,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 16:24:53,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 16:24:53,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 16:24:53,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 16:24:53,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 16:24:53,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 16:24:53,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 16:24:53,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-21 16:24:53,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:24:53,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-21 16:24:53,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-21 16:24:53,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:24:53,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-21 16:24:53,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-21 16:24:53,888 INFO L354 Elim1Store]: treesize reduction 34, result has 8.1 percent of original size [2021-02-21 16:24:53,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 13 [2021-02-21 16:24:53,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 16:24:53,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,894 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-21 16:24:53,902 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:53,904 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-02-21 16:24:53,904 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:31, output treesize:7 [2021-02-21 16:24:53,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:53,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:53,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:24:53,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 16:24:53,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-21 16:24:53,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:24:53,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 16:24:53,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 16:24:53,939 WARN L141 QuantifierPusher]: treesize reduction 13, result has 38.1 percent of original size [2021-02-21 16:24:53,941 WARN L147 QuantifierPusher]: treesize reduction 13, result has 38.1 percent of original size 8 [2021-02-21 16:24:53,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:24:53,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 16:24:53,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:24:53,993 WARN L141 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-02-21 16:24:53,994 WARN L147 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size 1 [2021-02-21 16:24:53,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:53,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:24:53,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:24:54,000 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-21 16:24:54,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-21 16:24:54,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2021-02-21 16:24:54,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843159573] [2021-02-21 16:24:54,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-21 16:24:54,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:24:54,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-21 16:24:54,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2021-02-21 16:24:54,004 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 22 states. [2021-02-21 16:24:55,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:24:55,176 INFO L93 Difference]: Finished difference Result 86 states and 104 transitions. [2021-02-21 16:24:55,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-21 16:24:55,177 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 31 [2021-02-21 16:24:55,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:24:55,180 INFO L225 Difference]: With dead ends: 86 [2021-02-21 16:24:55,180 INFO L226 Difference]: Without dead ends: 84 [2021-02-21 16:24:55,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=232, Invalid=1250, Unknown=0, NotChecked=0, Total=1482 [2021-02-21 16:24:55,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-02-21 16:24:55,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 49. [2021-02-21 16:24:55,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-02-21 16:24:55,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2021-02-21 16:24:55,199 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 31 [2021-02-21 16:24:55,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:24:55,199 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2021-02-21 16:24:55,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-02-21 16:24:55,200 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2021-02-21 16:24:55,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-21 16:24:55,201 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:24:55,201 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:24:55,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-21 16:24:55,416 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:24:55,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:24:55,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1001765424, now seen corresponding path program 1 times [2021-02-21 16:24:55,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:24:55,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191079304] [2021-02-21 16:24:55,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:24:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:24:55,462 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:24:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:24:55,493 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:24:55,523 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 16:24:55,523 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 16:24:55,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 16:24:55,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 04:24:55 BoogieIcfgContainer [2021-02-21 16:24:55,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 16:24:55,575 INFO L168 Benchmark]: Toolchain (without parser) took 6216.66 ms. Allocated memory was 151.0 MB in the beginning and 205.5 MB in the end (delta: 54.5 MB). Free memory was 126.9 MB in the beginning and 179.1 MB in the end (delta: -52.2 MB). Peak memory consumption was 3.4 MB. Max. memory is 8.0 GB. [2021-02-21 16:24:55,575 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:24:55,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.30 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 115.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-21 16:24:55,576 INFO L168 Benchmark]: Boogie Preprocessor took 44.42 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 113.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 16:24:55,576 INFO L168 Benchmark]: RCFGBuilder took 623.41 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 129.9 MB in the end (delta: -16.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 8.0 GB. [2021-02-21 16:24:55,576 INFO L168 Benchmark]: TraceAbstraction took 5264.67 ms. Allocated memory was 151.0 MB in the beginning and 205.5 MB in the end (delta: 54.5 MB). Free memory was 129.4 MB in the beginning and 179.1 MB in the end (delta: -49.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2021-02-21 16:24:55,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 260.30 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 115.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.42 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 113.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 623.41 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 129.9 MB in the end (delta: -16.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5264.67 ms. Allocated memory was 151.0 MB in the beginning and 205.5 MB in the end (delta: 54.5 MB). Free memory was 129.4 MB in the beginning and 179.1 MB in the end (delta: -49.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] int SIZE; [L14] const int MAX = 100000; VAL [\old(MAX)=100005, \old(SIZE)=100003, MAX=100000, SIZE=0] [L18] SIZE = __VERIFIER_nondet_int() [L19] COND TRUE SIZE > 1 && SIZE < MAX [L21] int i; [L22] int *a = malloc(sizeof(int)*SIZE); [L24] i = 0 VAL [\old(SIZE)=0, a={-1:0}, i=0, malloc(sizeof(int)*SIZE)={-1:0}, MAX=100000, SIZE=2] [L24] COND TRUE i < SIZE [L26] a[i] = __VERIFIER_nondet_int() [L24] i++ VAL [\old(SIZE)=0, a={-1:0}, i=1, malloc(sizeof(int)*SIZE)={-1:0}, MAX=100000, SIZE=2] [L24] COND TRUE i < SIZE [L26] a[i] = __VERIFIER_nondet_int() [L24] i++ VAL [\old(SIZE)=0, a={-1:0}, i=2, malloc(sizeof(int)*SIZE)={-1:0}, MAX=100000, SIZE=2] [L24] COND FALSE !(i < SIZE) VAL [\old(SIZE)=0, a={-1:0}, i=2, malloc(sizeof(int)*SIZE)={-1:0}, MAX=100000, SIZE=2] [L29] COND FALSE !(SIZE % 2 != 0) VAL [\old(SIZE)=0, a={-1:0}, i=2, malloc(sizeof(int)*SIZE)={-1:0}, MAX=100000, SIZE=2] [L31] CALL assume_abort_if_not(SIZE % 2 == 0) VAL [\old(cond)=1, \old(SIZE)=0, MAX=100000, SIZE=2] [L6] COND FALSE !(!cond) VAL [\old(cond)=1, \old(SIZE)=0, cond=1, MAX=100000, SIZE=2] [L31] RET assume_abort_if_not(SIZE % 2 == 0) VAL [\old(SIZE)=0, a={-1:0}, i=2, malloc(sizeof(int)*SIZE)={-1:0}, MAX=100000, SIZE=2] [L32] i = 1 VAL [\old(SIZE)=0, a={-1:0}, i=1, malloc(sizeof(int)*SIZE)={-1:0}, MAX=100000, SIZE=2] [L32] COND TRUE i <= SIZE/2 [L34] EXPR a[2*i-2] VAL [\old(SIZE)=0, a={-1:0}, a[2*i-2]=1, i=1, malloc(sizeof(int)*SIZE)={-1:0}, MAX=100000, SIZE=2] [L34] COND FALSE !(a[2*i-2] > i) [L38] EXPR a[2*i-1] VAL [\old(SIZE)=0, a={-1:0}, a[2*i-1]=7, i=1, malloc(sizeof(int)*SIZE)={-1:0}, MAX=100000, SIZE=2] [L38] COND TRUE a[2*i-1] > i [L40] a[2*i-1] = 2*i-1 VAL [\old(SIZE)=0, a={-1:0}, i=1, malloc(sizeof(int)*SIZE)={-1:0}, MAX=100000, SIZE=2] [L32] i++ VAL [\old(SIZE)=0, a={-1:0}, i=2, malloc(sizeof(int)*SIZE)={-1:0}, MAX=100000, SIZE=2] [L32] COND FALSE !(i <= SIZE/2) VAL [\old(SIZE)=0, a={-1:0}, i=2, malloc(sizeof(int)*SIZE)={-1:0}, MAX=100000, SIZE=2] [L44] i = 0 VAL [\old(SIZE)=0, a={-1:0}, i=0, malloc(sizeof(int)*SIZE)={-1:0}, MAX=100000, SIZE=2] [L44] COND TRUE i < SIZE [L46] EXPR a[i] VAL [\old(SIZE)=0, a={-1:0}, a[i]=1, i=0, malloc(sizeof(int)*SIZE)={-1:0}, MAX=100000, SIZE=2] [L46] CALL __VERIFIER_assert( a[i] <= i ) VAL [\old(cond)=0, \old(SIZE)=0, MAX=100000, SIZE=2] [L8] COND TRUE !(cond) VAL [\old(cond)=0, \old(SIZE)=0, cond=0, MAX=100000, SIZE=2] [L8] reach_error() VAL [\old(cond)=0, \old(SIZE)=0, cond=0, MAX=100000, SIZE=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.1s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 112 SDtfs, 258 SDslu, 139 SDs, 0 SdLazy, 669 SolverSat, 105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=4, 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, 4 MinimizatonAttempts, 41 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 19991 SizeOfPredicates, 9 NumberOfNonLiveVariables, 313 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 12/16 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...