/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 04:16:16,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 04:16:16,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 04:16:16,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 04:16:16,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 04:16:16,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 04:16:16,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 04:16:16,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 04:16:16,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 04:16:16,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 04:16:16,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 04:16:16,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 04:16:16,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 04:16:16,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 04:16:16,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 04:16:16,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 04:16:16,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 04:16:16,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 04:16:16,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 04:16:16,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 04:16:16,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 04:16:16,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 04:16:16,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 04:16:16,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 04:16:16,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 04:16:16,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 04:16:16,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 04:16:16,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 04:16:16,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 04:16:16,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 04:16:16,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 04:16:16,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 04:16:16,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 04:16:16,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 04:16:16,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 04:16:16,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 04:16:16,704 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 04:16:16,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 04:16:16,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 04:16:16,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 04:16:16,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 04:16:16,779 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 04:16:16,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 04:16:16,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 04:16:16,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 04:16:16,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 04:16:16,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 04:16:16,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 04:16:16,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 04:16:16,782 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 04:16:16,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 04:16:16,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 04:16:16,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 04:16:16,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 04:16:16,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 04:16:16,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 04:16:16,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 04:16:16,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 04:16:16,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 04:16:16,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 04:16:16,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 04:16:16,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 04:16:16,785 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 04:16:17,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 04:16:17,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 04:16:17,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 04:16:17,212 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 04:16:17,213 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 04:16:17,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-1.i [2020-12-22 04:16:17,291 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4273dda45/756e716176ff4059851a5e21455e9123/FLAGead35e0a1 [2020-12-22 04:16:18,051 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 04:16:18,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-1.i [2020-12-22 04:16:18,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4273dda45/756e716176ff4059851a5e21455e9123/FLAGead35e0a1 [2020-12-22 04:16:18,284 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4273dda45/756e716176ff4059851a5e21455e9123 [2020-12-22 04:16:18,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 04:16:18,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 04:16:18,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 04:16:18,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 04:16:18,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 04:16:18,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:16:18" (1/1) ... [2020-12-22 04:16:18,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7da19985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:18, skipping insertion in model container [2020-12-22 04:16:18,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:16:18" (1/1) ... [2020-12-22 04:16:18,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 04:16:18,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 04:16:18,678 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-1.i[24987,25000] [2020-12-22 04:16:18,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:16:18,705 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 04:16:18,787 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-1.i[24987,25000] [2020-12-22 04:16:18,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:16:18,855 INFO L208 MainTranslator]: Completed translation [2020-12-22 04:16:18,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:18 WrapperNode [2020-12-22 04:16:18,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 04:16:18,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 04:16:18,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 04:16:18,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 04:16:18,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:18" (1/1) ... [2020-12-22 04:16:18,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:18" (1/1) ... [2020-12-22 04:16:18,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 04:16:18,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 04:16:18,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 04:16:18,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 04:16:18,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:18" (1/1) ... [2020-12-22 04:16:18,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:18" (1/1) ... [2020-12-22 04:16:18,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:18" (1/1) ... [2020-12-22 04:16:18,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:18" (1/1) ... [2020-12-22 04:16:19,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:18" (1/1) ... [2020-12-22 04:16:19,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:18" (1/1) ... [2020-12-22 04:16:19,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:18" (1/1) ... [2020-12-22 04:16:19,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 04:16:19,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 04:16:19,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 04:16:19,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 04:16:19,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:18" (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 [2020-12-22 04:16:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 04:16:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 04:16:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 04:16:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 04:16:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 04:16:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 04:16:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 04:16:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 04:16:19,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 04:16:19,769 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 04:16:19,769 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2020-12-22 04:16:19,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:16:19 BoogieIcfgContainer [2020-12-22 04:16:19,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 04:16:19,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 04:16:19,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 04:16:19,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 04:16:19,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:16:18" (1/3) ... [2020-12-22 04:16:19,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2555e9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:16:19, skipping insertion in model container [2020-12-22 04:16:19,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:18" (2/3) ... [2020-12-22 04:16:19,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2555e9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:16:19, skipping insertion in model container [2020-12-22 04:16:19,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:16:19" (3/3) ... [2020-12-22 04:16:19,781 INFO L111 eAbstractionObserver]: Analyzing ICFG sll_of_sll_nondet_append-1.i [2020-12-22 04:16:19,787 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 04:16:19,791 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 04:16:19,810 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 04:16:19,836 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 04:16:19,836 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 04:16:19,836 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 04:16:19,836 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 04:16:19,836 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 04:16:19,837 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 04:16:19,837 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 04:16:19,837 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 04:16:19,851 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-12-22 04:16:19,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 04:16:19,857 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:16:19,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:16:19,858 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:16:19,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:16:19,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1882208553, now seen corresponding path program 1 times [2020-12-22 04:16:19,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:16:19,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459493834] [2020-12-22 04:16:19,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:16:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:16:20,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:16:20,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459493834] [2020-12-22 04:16:20,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:16:20,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 04:16:20,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236219909] [2020-12-22 04:16:20,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 04:16:20,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:16:20,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 04:16:20,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 04:16:20,076 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-12-22 04:16:20,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:16:20,102 INFO L93 Difference]: Finished difference Result 84 states and 134 transitions. [2020-12-22 04:16:20,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 04:16:20,104 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-22 04:16:20,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:16:20,115 INFO L225 Difference]: With dead ends: 84 [2020-12-22 04:16:20,115 INFO L226 Difference]: Without dead ends: 33 [2020-12-22 04:16:20,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 04:16:20,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-22 04:16:20,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-22 04:16:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-22 04:16:20,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2020-12-22 04:16:20,161 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 7 [2020-12-22 04:16:20,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:16:20,161 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2020-12-22 04:16:20,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 04:16:20,161 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2020-12-22 04:16:20,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 04:16:20,162 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:16:20,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:16:20,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 04:16:20,163 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:16:20,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:16:20,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1810173915, now seen corresponding path program 1 times [2020-12-22 04:16:20,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:16:20,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023424761] [2020-12-22 04:16:20,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:16:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:16:20,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:16:20,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023424761] [2020-12-22 04:16:20,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:16:20,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 04:16:20,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697149017] [2020-12-22 04:16:20,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 04:16:20,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:16:20,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 04:16:20,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:16:20,252 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 3 states. [2020-12-22 04:16:20,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:16:20,315 INFO L93 Difference]: Finished difference Result 64 states and 86 transitions. [2020-12-22 04:16:20,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 04:16:20,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-22 04:16:20,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:16:20,317 INFO L225 Difference]: With dead ends: 64 [2020-12-22 04:16:20,318 INFO L226 Difference]: Without dead ends: 51 [2020-12-22 04:16:20,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:16:20,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-22 04:16:20,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 34. [2020-12-22 04:16:20,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-22 04:16:20,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-12-22 04:16:20,328 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 7 [2020-12-22 04:16:20,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:16:20,328 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-12-22 04:16:20,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 04:16:20,328 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-12-22 04:16:20,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 04:16:20,329 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:16:20,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:16:20,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 04:16:20,330 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:16:20,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:16:20,331 INFO L82 PathProgramCache]: Analyzing trace with hash -176325417, now seen corresponding path program 1 times [2020-12-22 04:16:20,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:16:20,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140374552] [2020-12-22 04:16:20,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:16:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:16:20,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 04:16:20,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140374552] [2020-12-22 04:16:20,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:16:20,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 04:16:20,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911467162] [2020-12-22 04:16:20,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 04:16:20,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:16:20,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 04:16:20,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:16:20,415 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 4 states. [2020-12-22 04:16:20,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:16:20,538 INFO L93 Difference]: Finished difference Result 62 states and 82 transitions. [2020-12-22 04:16:20,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 04:16:20,542 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-22 04:16:20,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:16:20,543 INFO L225 Difference]: With dead ends: 62 [2020-12-22 04:16:20,543 INFO L226 Difference]: Without dead ends: 46 [2020-12-22 04:16:20,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:16:20,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-12-22 04:16:20,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2020-12-22 04:16:20,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-22 04:16:20,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2020-12-22 04:16:20,551 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 50 transitions. Word has length 12 [2020-12-22 04:16:20,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:16:20,552 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 50 transitions. [2020-12-22 04:16:20,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 04:16:20,552 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2020-12-22 04:16:20,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 04:16:20,553 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:16:20,553 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] [2020-12-22 04:16:20,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 04:16:20,554 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:16:20,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:16:20,555 INFO L82 PathProgramCache]: Analyzing trace with hash -254202918, now seen corresponding path program 1 times [2020-12-22 04:16:20,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:16:20,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56003497] [2020-12-22 04:16:20,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:16:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:16:20,677 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:16:20,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56003497] [2020-12-22 04:16:20,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:16:20,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 04:16:20,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872411826] [2020-12-22 04:16:20,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 04:16:20,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:16:20,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 04:16:20,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:16:20,680 INFO L87 Difference]: Start difference. First operand 38 states and 50 transitions. Second operand 5 states. [2020-12-22 04:16:20,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:16:20,785 INFO L93 Difference]: Finished difference Result 94 states and 124 transitions. [2020-12-22 04:16:20,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 04:16:20,786 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-12-22 04:16:20,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:16:20,787 INFO L225 Difference]: With dead ends: 94 [2020-12-22 04:16:20,787 INFO L226 Difference]: Without dead ends: 63 [2020-12-22 04:16:20,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:16:20,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-12-22 04:16:20,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-12-22 04:16:20,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-12-22 04:16:20,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 78 transitions. [2020-12-22 04:16:20,798 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 78 transitions. Word has length 23 [2020-12-22 04:16:20,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:16:20,799 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 78 transitions. [2020-12-22 04:16:20,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 04:16:20,799 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 78 transitions. [2020-12-22 04:16:20,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 04:16:20,800 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:16:20,801 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] [2020-12-22 04:16:20,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 04:16:20,801 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:16:20,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:16:20,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1546151472, now seen corresponding path program 1 times [2020-12-22 04:16:20,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:16:20,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938852293] [2020-12-22 04:16:20,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:16:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:16:20,941 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 04:16:20,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938852293] [2020-12-22 04:16:20,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159293085] [2020-12-22 04:16:20,942 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 [2020-12-22 04:16:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:16:21,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-22 04:16:21,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:16:21,261 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:16:21,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:16:21,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 8 [2020-12-22 04:16:21,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149091238] [2020-12-22 04:16:21,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 04:16:21,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:16:21,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 04:16:21,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 04:16:21,264 INFO L87 Difference]: Start difference. First operand 59 states and 78 transitions. Second operand 8 states. [2020-12-22 04:16:21,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:16:21,813 INFO L93 Difference]: Finished difference Result 162 states and 213 transitions. [2020-12-22 04:16:21,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-22 04:16:21,814 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-12-22 04:16:21,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:16:21,816 INFO L225 Difference]: With dead ends: 162 [2020-12-22 04:16:21,816 INFO L226 Difference]: Without dead ends: 114 [2020-12-22 04:16:21,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=224, Unknown=0, NotChecked=0, Total=342 [2020-12-22 04:16:21,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-12-22 04:16:21,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 68. [2020-12-22 04:16:21,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-22 04:16:21,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2020-12-22 04:16:21,829 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 26 [2020-12-22 04:16:21,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:16:21,830 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2020-12-22 04:16:21,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 04:16:21,830 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2020-12-22 04:16:21,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 04:16:21,831 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:16:21,831 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:16:22,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:16:22,046 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:16:22,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:16:22,047 INFO L82 PathProgramCache]: Analyzing trace with hash -770683882, now seen corresponding path program 2 times [2020-12-22 04:16:22,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:16:22,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675122462] [2020-12-22 04:16:22,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:16:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:16:22,184 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 04:16:22,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675122462] [2020-12-22 04:16:22,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829096268] [2020-12-22 04:16:22,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2020-12-22 04:16:22,273 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 04:16:22,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 04:16:22,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-22 04:16:22,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:16:22,394 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 04:16:22,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 04:16:22,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2020-12-22 04:16:22,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031294347] [2020-12-22 04:16:22,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 04:16:22,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:16:22,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 04:16:22,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 04:16:22,397 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand 4 states. [2020-12-22 04:16:22,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:16:22,456 INFO L93 Difference]: Finished difference Result 83 states and 105 transitions. [2020-12-22 04:16:22,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 04:16:22,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-12-22 04:16:22,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:16:22,458 INFO L225 Difference]: With dead ends: 83 [2020-12-22 04:16:22,458 INFO L226 Difference]: Without dead ends: 81 [2020-12-22 04:16:22,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-12-22 04:16:22,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-12-22 04:16:22,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 70. [2020-12-22 04:16:22,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-12-22 04:16:22,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2020-12-22 04:16:22,469 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 34 [2020-12-22 04:16:22,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:16:22,469 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2020-12-22 04:16:22,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 04:16:22,470 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2020-12-22 04:16:22,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 04:16:22,471 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:16:22,471 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:16:22,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:16:22,685 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:16:22,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:16:22,686 INFO L82 PathProgramCache]: Analyzing trace with hash -2123237744, now seen corresponding path program 1 times [2020-12-22 04:16:22,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:16:22,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027453206] [2020-12-22 04:16:22,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:16:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:16:22,845 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 04:16:22,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027453206] [2020-12-22 04:16:22,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856915331] [2020-12-22 04:16:22,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:16:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:16:22,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-22 04:16:22,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:16:23,156 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:16:23,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:16:23,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 11 [2020-12-22 04:16:23,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259768797] [2020-12-22 04:16:23,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 04:16:23,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:16:23,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 04:16:23,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-12-22 04:16:23,161 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand 11 states. [2020-12-22 04:16:23,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:16:23,655 INFO L93 Difference]: Finished difference Result 205 states and 262 transitions. [2020-12-22 04:16:23,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-22 04:16:23,655 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2020-12-22 04:16:23,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:16:23,659 INFO L225 Difference]: With dead ends: 205 [2020-12-22 04:16:23,659 INFO L226 Difference]: Without dead ends: 168 [2020-12-22 04:16:23,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2020-12-22 04:16:23,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-12-22 04:16:23,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 114. [2020-12-22 04:16:23,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-12-22 04:16:23,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 143 transitions. [2020-12-22 04:16:23,692 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 143 transitions. Word has length 41 [2020-12-22 04:16:23,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:16:23,692 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 143 transitions. [2020-12-22 04:16:23,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 04:16:23,692 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2020-12-22 04:16:23,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-22 04:16:23,697 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:16:23,698 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:16:23,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:16:23,912 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:16:23,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:16:23,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1388929204, now seen corresponding path program 2 times [2020-12-22 04:16:23,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:16:23,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160791338] [2020-12-22 04:16:23,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:16:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:16:24,045 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 04:16:24,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160791338] [2020-12-22 04:16:24,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970551226] [2020-12-22 04:16:24,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:16:24,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 04:16:24,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 04:16:24,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 04:16:24,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:16:24,268 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 04:16:24,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:16:24,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2020-12-22 04:16:24,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143370605] [2020-12-22 04:16:24,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 04:16:24,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:16:24,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 04:16:24,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-12-22 04:16:24,271 INFO L87 Difference]: Start difference. First operand 114 states and 143 transitions. Second operand 12 states. [2020-12-22 04:16:24,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:16:24,488 INFO L93 Difference]: Finished difference Result 217 states and 269 transitions. [2020-12-22 04:16:24,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 04:16:24,489 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2020-12-22 04:16:24,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:16:24,490 INFO L225 Difference]: With dead ends: 217 [2020-12-22 04:16:24,490 INFO L226 Difference]: Without dead ends: 119 [2020-12-22 04:16:24,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-12-22 04:16:24,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-12-22 04:16:24,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2020-12-22 04:16:24,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-12-22 04:16:24,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 146 transitions. [2020-12-22 04:16:24,502 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 146 transitions. Word has length 46 [2020-12-22 04:16:24,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:16:24,502 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 146 transitions. [2020-12-22 04:16:24,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 04:16:24,503 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 146 transitions. [2020-12-22 04:16:24,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 04:16:24,504 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:16:24,504 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:16:24,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:16:24,718 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:16:24,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:16:24,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1728220938, now seen corresponding path program 3 times [2020-12-22 04:16:24,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:16:24,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391211887] [2020-12-22 04:16:24,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:16:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:16:24,857 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:16:24,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391211887] [2020-12-22 04:16:24,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840847465] [2020-12-22 04:16:24,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:16:24,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-12-22 04:16:24,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 04:16:24,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 59 conjunts are in the unsatisfiable core [2020-12-22 04:16:24,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:16:25,031 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-12-22 04:16:25,032 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,036 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:25,036 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,037 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-22 04:16:25,080 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:25,080 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-22 04:16:25,084 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:16:25,091 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,098 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:25,099 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,099 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:14 [2020-12-22 04:16:25,258 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:16:25,261 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:16:25,263 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:16:25,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:25,283 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-22 04:16:25,284 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:25,296 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-22 04:16:25,297 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,347 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:25,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:25,364 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-22 04:16:25,365 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:25,377 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-22 04:16:25,379 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,433 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:25,440 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-22 04:16:25,441 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:101, output treesize:77 [2020-12-22 04:16:25,509 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:16:25,512 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:16:25,514 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:16:25,529 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2020-12-22 04:16:25,531 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:25,541 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2020-12-22 04:16:25,544 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,592 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:25,603 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2020-12-22 04:16:25,607 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:25,618 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2020-12-22 04:16:25,621 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,657 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:25,658 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-22 04:16:25,659 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:121, output treesize:77 [2020-12-22 04:16:25,730 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 7, 1] term [2020-12-22 04:16:25,730 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:16:25,734 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-12-22 04:16:25,735 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:16:25,751 INFO L443 ElimStorePlain]: Different costs {2=[v_prenex_2, |v_#memory_$Pointer$.base_24|], 4=[|v_#memory_$Pointer$.offset_24|, v_prenex_3]} [2020-12-22 04:16:25,760 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 04:16:25,762 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,792 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:25,804 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 04:16:25,805 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,835 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:25,846 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2020-12-22 04:16:25,848 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,878 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:25,888 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2020-12-22 04:16:25,890 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:25,918 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:25,921 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-22 04:16:25,922 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:99, output treesize:101 [2020-12-22 04:16:26,017 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:16:26,767 WARN L197 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-22 04:16:26,989 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:16:27,002 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:16:27,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:16:27,054 INFO L443 ElimStorePlain]: Different costs {6=[v_prenex_10, |#memory_$Pointer$.base|], 10=[|#memory_$Pointer$.offset|, v_prenex_9]} [2020-12-22 04:16:27,065 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:27,065 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 36 [2020-12-22 04:16:27,067 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:27,098 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:27,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:27,119 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:27,120 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 72 [2020-12-22 04:16:27,124 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 04:16:27,125 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 04:16:27,129 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 04:16:27,149 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:27,167 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:27,167 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 35 [2020-12-22 04:16:27,170 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:27,183 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:27,199 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:27,200 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 42 [2020-12-22 04:16:27,206 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 04:16:27,207 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:16:27,210 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:27,216 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:27,219 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-22 04:16:27,219 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:169, output treesize:9 [2020-12-22 04:16:27,266 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-22 04:16:27,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:16:27,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2020-12-22 04:16:27,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608796677] [2020-12-22 04:16:27,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-22 04:16:27,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:16:27,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-22 04:16:27,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2020-12-22 04:16:27,268 INFO L87 Difference]: Start difference. First operand 117 states and 146 transitions. Second operand 20 states. [2020-12-22 04:16:28,175 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2020-12-22 04:16:28,516 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-12-22 04:16:28,918 WARN L197 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-12-22 04:16:29,261 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2020-12-22 04:16:29,596 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-12-22 04:16:30,171 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-12-22 04:16:31,089 WARN L197 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-12-22 04:16:31,289 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2020-12-22 04:16:31,703 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-12-22 04:16:32,279 WARN L197 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 110 [2020-12-22 04:16:33,076 WARN L197 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 114 [2020-12-22 04:16:33,753 WARN L197 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 121 [2020-12-22 04:16:34,193 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 105 [2020-12-22 04:16:34,645 WARN L197 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 117 [2020-12-22 04:16:35,137 WARN L197 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 117 [2020-12-22 04:16:35,704 WARN L197 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 124 [2020-12-22 04:16:35,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:16:35,928 INFO L93 Difference]: Finished difference Result 280 states and 347 transitions. [2020-12-22 04:16:35,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-12-22 04:16:35,928 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 49 [2020-12-22 04:16:35,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:16:35,932 INFO L225 Difference]: With dead ends: 280 [2020-12-22 04:16:35,932 INFO L226 Difference]: Without dead ends: 229 [2020-12-22 04:16:35,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 999 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=786, Invalid=3504, Unknown=0, NotChecked=0, Total=4290 [2020-12-22 04:16:35,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-12-22 04:16:35,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 164. [2020-12-22 04:16:35,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-12-22 04:16:35,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 208 transitions. [2020-12-22 04:16:35,976 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 208 transitions. Word has length 49 [2020-12-22 04:16:35,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:16:35,976 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 208 transitions. [2020-12-22 04:16:35,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-22 04:16:35,976 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 208 transitions. [2020-12-22 04:16:35,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 04:16:35,978 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:16:35,978 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:16:36,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:16:36,179 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:16:36,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:16:36,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1242542659, now seen corresponding path program 1 times [2020-12-22 04:16:36,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:16:36,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030133149] [2020-12-22 04:16:36,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:16:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:16:36,291 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 04:16:36,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030133149] [2020-12-22 04:16:36,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749973059] [2020-12-22 04:16:36,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:16:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:16:36,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-22 04:16:36,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:16:36,494 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 04:16:36,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:16:36,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-12-22 04:16:36,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839871714] [2020-12-22 04:16:36,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 04:16:36,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:16:36,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 04:16:36,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-12-22 04:16:36,497 INFO L87 Difference]: Start difference. First operand 164 states and 208 transitions. Second operand 12 states. [2020-12-22 04:16:36,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:16:36,831 INFO L93 Difference]: Finished difference Result 368 states and 471 transitions. [2020-12-22 04:16:36,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 04:16:36,831 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 50 [2020-12-22 04:16:36,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:16:36,833 INFO L225 Difference]: With dead ends: 368 [2020-12-22 04:16:36,833 INFO L226 Difference]: Without dead ends: 251 [2020-12-22 04:16:36,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2020-12-22 04:16:36,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-12-22 04:16:36,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 167. [2020-12-22 04:16:36,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-12-22 04:16:36,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 211 transitions. [2020-12-22 04:16:36,863 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 211 transitions. Word has length 50 [2020-12-22 04:16:36,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:16:36,864 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 211 transitions. [2020-12-22 04:16:36,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 04:16:36,864 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 211 transitions. [2020-12-22 04:16:36,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 04:16:36,865 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:16:36,865 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:16:37,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:16:37,081 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:16:37,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:16:37,082 INFO L82 PathProgramCache]: Analyzing trace with hash 272815509, now seen corresponding path program 2 times [2020-12-22 04:16:37,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:16:37,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339590195] [2020-12-22 04:16:37,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:16:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:16:37,647 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-22 04:16:37,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339590195] [2020-12-22 04:16:37,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108702826] [2020-12-22 04:16:37,649 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:16:37,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 04:16:37,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 04:16:37,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 87 conjunts are in the unsatisfiable core [2020-12-22 04:16:37,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:16:37,796 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-12-22 04:16:37,796 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:37,805 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:37,805 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:16:37,806 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:23 [2020-12-22 04:16:37,867 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:37,868 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-22 04:16:37,870 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:16:37,874 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:37,891 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:37,892 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:16:37,893 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:38 [2020-12-22 04:16:37,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:37,975 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:37,975 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-22 04:16:37,981 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:38,035 INFO L625 ElimStorePlain]: treesize reduction 14, result has 77.8 percent of original size [2020-12-22 04:16:38,038 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 04:16:38,039 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:49 [2020-12-22 04:16:38,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:38,143 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 04:16:38,145 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:38,172 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:38,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:38,185 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 04:16:38,186 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:38,216 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:38,221 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 04:16:38,221 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:71, output treesize:46 [2020-12-22 04:16:38,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:38,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:38,343 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:38,343 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 66 [2020-12-22 04:16:38,346 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:38,415 INFO L625 ElimStorePlain]: treesize reduction 28, result has 67.4 percent of original size [2020-12-22 04:16:38,417 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 04:16:38,417 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:59, output treesize:58 [2020-12-22 04:16:38,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:38,545 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 04:16:38,546 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:38,578 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:38,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:38,585 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 04:16:38,587 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:38,633 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:38,635 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:16:38,637 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:72, output treesize:50 [2020-12-22 04:16:38,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:38,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:38,729 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:38,730 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 37 [2020-12-22 04:16:38,732 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:16:38,733 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:16:38,735 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:38,757 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:38,758 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:16:38,759 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:50 [2020-12-22 04:16:38,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:38,858 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 04:16:38,862 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:38,893 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:38,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:38,900 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-22 04:16:38,903 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:38,932 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:38,934 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:16:38,935 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:72, output treesize:62 [2020-12-22 04:16:39,111 INFO L443 ElimStorePlain]: Different costs {4=[|v_#memory_$Pointer$.offset_28|], 10=[|v_#memory_$Pointer$.base_28|]} [2020-12-22 04:16:39,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:39,119 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2020-12-22 04:16:39,120 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:39,154 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:39,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:39,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:16:39,164 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2020-12-22 04:16:39,166 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:39,229 INFO L625 ElimStorePlain]: treesize reduction 4, result has 95.6 percent of original size [2020-12-22 04:16:39,231 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:16:39,231 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:91, output treesize:108 [2020-12-22 04:16:39,327 INFO L443 ElimStorePlain]: Different costs {10=[|v_#memory_$Pointer$.offset_29|], 15=[|v_#memory_$Pointer$.base_29|]} [2020-12-22 04:16:39,334 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2020-12-22 04:16:39,336 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:39,373 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:39,401 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:39,401 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 92 [2020-12-22 04:16:39,405 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 04:16:39,406 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:16:39,407 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:16:39,411 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:39,481 INFO L625 ElimStorePlain]: treesize reduction 84, result has 53.3 percent of original size [2020-12-22 04:16:39,483 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:16:39,483 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:118, output treesize:96 [2020-12-22 04:16:39,590 INFO L443 ElimStorePlain]: Different costs {10=[|v_#memory_$Pointer$.offset_30|], 15=[|v_#memory_$Pointer$.base_30|]} [2020-12-22 04:16:39,607 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:39,608 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 54 [2020-12-22 04:16:39,611 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:39,696 INFO L625 ElimStorePlain]: treesize reduction 16, result has 87.1 percent of original size [2020-12-22 04:16:39,747 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:39,748 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 76 treesize of output 123 [2020-12-22 04:16:39,753 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:16:39,754 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:16:39,755 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 04:16:39,760 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:39,838 INFO L625 ElimStorePlain]: treesize reduction 20, result has 84.4 percent of original size [2020-12-22 04:16:39,841 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:39,842 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 04:16:39,843 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:112, output treesize:137 [2020-12-22 04:16:39,845 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:39,934 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:40,069 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:40,193 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:40,312 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:40,432 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:40,539 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:40,652 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:40,760 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:40,869 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:40,970 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:41,081 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:41,196 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:41,304 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:41,419 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:41,533 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:41,649 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:41,771 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:16:41,772 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:41,782 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 04:16:41,788 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:16:42,201 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:42,201 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 47 [2020-12-22 04:16:42,205 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:42,229 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:42,231 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 04:16:42,232 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:161, output treesize:112 [2020-12-22 04:16:42,358 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:42,359 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 113 treesize of output 83 [2020-12-22 04:16:42,363 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 04:16:42,364 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:16:42,365 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 04:16:42,369 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 04:16:42,372 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 04:16:42,372 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 04:16:42,374 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 04:16:42,375 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:16:42,380 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:16:42,381 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:16:42,382 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:113, output treesize:4 [2020-12-22 04:16:42,434 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 04:16:42,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:16:42,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 30 [2020-12-22 04:16:42,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877829518] [2020-12-22 04:16:42,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-12-22 04:16:42,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:16:42,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-12-22 04:16:42,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2020-12-22 04:16:42,437 INFO L87 Difference]: Start difference. First operand 167 states and 211 transitions. Second operand 30 states. [2020-12-22 04:16:43,125 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-22 04:16:43,386 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2020-12-22 04:16:43,612 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2020-12-22 04:16:43,964 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2020-12-22 04:16:44,471 WARN L197 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 105 [2020-12-22 04:16:45,197 WARN L197 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 140 [2020-12-22 04:16:45,424 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-12-22 04:16:50,976 WARN L197 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 172 [2020-12-22 04:16:51,350 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-12-22 04:16:51,947 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-12-22 04:16:52,111 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-22 04:16:52,392 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-12-22 04:16:56,821 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-12-22 04:17:03,036 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-22 04:17:03,237 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-12-22 04:17:09,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:17:09,030 INFO L93 Difference]: Finished difference Result 413 states and 512 transitions. [2020-12-22 04:17:09,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-12-22 04:17:09,031 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 50 [2020-12-22 04:17:09,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:17:09,036 INFO L225 Difference]: With dead ends: 413 [2020-12-22 04:17:09,036 INFO L226 Difference]: Without dead ends: 363 [2020-12-22 04:17:09,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 21 SyntacticMatches, 16 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 922 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=679, Invalid=3102, Unknown=1, NotChecked=0, Total=3782 [2020-12-22 04:17:09,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-12-22 04:17:09,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 169. [2020-12-22 04:17:09,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-12-22 04:17:09,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 213 transitions. [2020-12-22 04:17:09,098 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 213 transitions. Word has length 50 [2020-12-22 04:17:09,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:17:09,098 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 213 transitions. [2020-12-22 04:17:09,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-12-22 04:17:09,098 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 213 transitions. [2020-12-22 04:17:09,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 04:17:09,099 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:17:09,100 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:17:09,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:17:09,301 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:17:09,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:17:09,302 INFO L82 PathProgramCache]: Analyzing trace with hash -2034085866, now seen corresponding path program 3 times [2020-12-22 04:17:09,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:17:09,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122104895] [2020-12-22 04:17:09,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:17:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:17:10,088 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 04:17:10,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122104895] [2020-12-22 04:17:10,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251393447] [2020-12-22 04:17:10,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:17:10,270 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2020-12-22 04:17:10,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 04:17:10,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 97 conjunts are in the unsatisfiable core [2020-12-22 04:17:10,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:17:10,338 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-12-22 04:17:10,339 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:10,353 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:10,354 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:17:10,354 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:23 [2020-12-22 04:17:10,496 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:10,496 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-12-22 04:17:10,498 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:10,552 INFO L625 ElimStorePlain]: treesize reduction 14, result has 72.0 percent of original size [2020-12-22 04:17:10,553 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:17:10,553 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:36 [2020-12-22 04:17:10,742 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:10,743 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 34 [2020-12-22 04:17:10,745 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:17:10,746 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:17:10,748 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:10,776 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:10,777 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:17:10,777 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:48, output treesize:41 [2020-12-22 04:17:10,884 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-22 04:17:10,885 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:10,911 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:10,912 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:17:10,912 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:49 [2020-12-22 04:17:11,115 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_31|], 2=[|v_#memory_$Pointer$.base_32|]} [2020-12-22 04:17:11,121 INFO L382 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 11 treesize of output 7 [2020-12-22 04:17:11,122 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:11,160 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:11,184 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:11,185 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 39 [2020-12-22 04:17:11,186 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:17:11,188 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:11,278 INFO L625 ElimStorePlain]: treesize reduction 12, result has 85.0 percent of original size [2020-12-22 04:17:11,280 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:17:11,281 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:71, output treesize:85 [2020-12-22 04:17:11,532 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:11,534 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:11,535 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:11,537 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:11,543 INFO L443 ElimStorePlain]: Different costs {4=[|v_#memory_$Pointer$.offset_32|], 9=[|v_#memory_$Pointer$.base_33|]} [2020-12-22 04:17:11,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:11,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:11,557 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2020-12-22 04:17:11,559 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:11,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:11,586 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:11,587 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 43 [2020-12-22 04:17:11,589 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:11,815 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-22 04:17:11,816 INFO L625 ElimStorePlain]: treesize reduction 16, result has 92.2 percent of original size [2020-12-22 04:17:11,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:11,855 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:11,856 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 51 [2020-12-22 04:17:11,860 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:11,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:11,911 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:11,912 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 90 [2020-12-22 04:17:11,916 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 04:17:11,917 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:11,918 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:11,919 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:11,922 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:17:11,925 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:11,925 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:11,926 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:11,929 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:11,930 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 04:17:12,172 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-12-22 04:17:12,173 INFO L625 ElimStorePlain]: treesize reduction 24, result has 87.3 percent of original size [2020-12-22 04:17:12,176 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:12,178 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-12-22 04:17:12,178 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:190, output treesize:189 [2020-12-22 04:17:12,181 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:12,416 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-12-22 04:17:12,428 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:17:12,429 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:12,430 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:12,432 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:17:12,433 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:12,434 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:12,435 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 04:17:12,437 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:12,438 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:17:12,440 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:12,441 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:12,442 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 04:17:12,447 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:12,452 INFO L443 ElimStorePlain]: Different costs {12=[|v_#memory_$Pointer$.offset_33|], 27=[|v_#memory_$Pointer$.base_34|]} [2020-12-22 04:17:12,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:12,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:12,477 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2020-12-22 04:17:12,479 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:12,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:12,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:12,510 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2020-12-22 04:17:12,512 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:12,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:12,526 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2020-12-22 04:17:12,528 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:12,715 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-22 04:17:12,715 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:12,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:12,763 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:12,763 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 68 [2020-12-22 04:17:12,767 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:12,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:12,810 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:12,810 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 69 [2020-12-22 04:17:12,812 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:12,813 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:17:12,815 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:12,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:12,896 INFO L348 Elim1Store]: treesize reduction 8, result has 88.7 percent of original size [2020-12-22 04:17:12,897 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 92 treesize of output 107 [2020-12-22 04:17:12,901 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:12,902 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:17:12,905 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:12,905 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:12,906 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:12,907 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:12,909 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:12,910 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 04:17:13,201 WARN L197 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-12-22 04:17:13,202 INFO L625 ElimStorePlain]: treesize reduction 38, result has 87.8 percent of original size [2020-12-22 04:17:13,204 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2020-12-22 04:17:13,205 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:380, output treesize:301 [2020-12-22 04:17:13,496 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-22 04:17:13,506 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 14, 1] term [2020-12-22 04:17:13,507 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:17:13,510 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 11, 1] term [2020-12-22 04:17:13,510 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:17:13,529 INFO L443 ElimStorePlain]: Different costs {4=[|v_#memory_$Pointer$.offset_34|], 7=[v_prenex_18, v_prenex_15], 15=[|v_#memory_$Pointer$.base_35|, v_prenex_19], 21=[v_prenex_16]} [2020-12-22 04:17:13,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:13,553 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2020-12-22 04:17:13,554 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:13,761 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-22 04:17:13,761 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:13,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:13,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:13,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:13,795 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2020-12-22 04:17:13,800 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:13,993 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-12-22 04:17:13,995 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:14,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:14,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:14,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:14,033 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2020-12-22 04:17:14,037 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:14,198 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-22 04:17:14,198 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:14,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:14,248 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:14,248 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 78 [2020-12-22 04:17:14,252 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:14,253 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:14,254 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:17:14,257 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:14,556 WARN L197 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-12-22 04:17:14,557 INFO L625 ElimStorePlain]: treesize reduction 16, result has 94.9 percent of original size [2020-12-22 04:17:14,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:14,599 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:14,599 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 84 [2020-12-22 04:17:14,607 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:14,884 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-12-22 04:17:14,885 INFO L625 ElimStorePlain]: treesize reduction 48, result has 85.5 percent of original size [2020-12-22 04:17:14,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:15,010 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-12-22 04:17:15,011 INFO L348 Elim1Store]: treesize reduction 8, result has 90.8 percent of original size [2020-12-22 04:17:15,011 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 89 treesize of output 131 [2020-12-22 04:17:15,017 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 04:17:15,018 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 04:17:15,018 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 04:17:15,019 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:15,019 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:15,020 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:15,021 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:15,022 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:15,024 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 04:17:15,025 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 04:17:15,026 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:15,026 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:15,028 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:15,030 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:15,031 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:15,031 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:17:15,033 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 04:17:15,034 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:15,034 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:15,035 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:15,035 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:15,036 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:15,037 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:17:15,038 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:15,041 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:15,042 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 04:17:15,425 WARN L197 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 99 [2020-12-22 04:17:15,426 INFO L625 ElimStorePlain]: treesize reduction 28, result has 90.1 percent of original size [2020-12-22 04:17:15,432 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 6 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2020-12-22 04:17:15,432 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 10 variables, input treesize:314, output treesize:372 [2020-12-22 04:17:15,700 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-12-22 04:17:15,876 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 12, 1] term [2020-12-22 04:17:15,877 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 04:17:16,155 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 04:17:16,445 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:17:16,458 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 04:17:16,460 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 04:17:16,462 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 04:17:16,468 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:16,470 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:16,471 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 04:17:16,474 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-22 04:17:16,483 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 04:17:16,484 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-22 04:17:16,489 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:16,490 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:16,491 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 04:17:16,494 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-22 04:17:16,502 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 04:17:16,503 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 04:17:16,506 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 04:17:16,507 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-22 04:17:16,515 INFO L443 ElimStorePlain]: Different costs {15=[|#memory_$Pointer$.offset|], 21=[v_prenex_23, v_prenex_22]} [2020-12-22 04:17:16,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:16,590 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:16,591 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 131 [2020-12-22 04:17:16,594 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:16,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:16,659 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:16,659 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 141 [2020-12-22 04:17:16,663 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:17,020 WARN L197 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 120 [2020-12-22 04:17:17,021 INFO L625 ElimStorePlain]: treesize reduction 498, result has 50.9 percent of original size [2020-12-22 04:17:17,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:17,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:17,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:17,091 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:17,092 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 7 case distinctions, treesize of input 133 treesize of output 164 [2020-12-22 04:17:17,096 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:17,191 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:17,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:17,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:17,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 04:17:17,255 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:17,255 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 7 case distinctions, treesize of input 133 treesize of output 164 [2020-12-22 04:17:17,259 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:17,350 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:17,354 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2020-12-22 04:17:17,355 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:1253, output treesize:312 [2020-12-22 04:17:17,605 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 04:17:17,612 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 2, 1] term [2020-12-22 04:17:17,612 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-22 04:17:17,623 INFO L443 ElimStorePlain]: Different costs {6=[v_prenex_25, |#memory_$Pointer$.base|], 10=[v_prenex_24]} [2020-12-22 04:17:17,655 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:17,656 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 99 treesize of output 84 [2020-12-22 04:17:17,659 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:17,660 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:17,661 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 04:17:17,666 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:17,740 INFO L625 ElimStorePlain]: treesize reduction 103, result has 59.9 percent of original size [2020-12-22 04:17:17,780 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 04:17:17,780 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 144 treesize of output 93 [2020-12-22 04:17:17,785 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 04:17:17,786 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 04:17:17,787 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 04:17:17,787 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 04:17:17,792 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:17:17,793 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:17:17,794 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:17:17,795 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:17:17,797 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 04:17:17,803 INFO L625 ElimStorePlain]: treesize reduction 10, result has 28.6 percent of original size [2020-12-22 04:17:17,803 INFO L515 ElimStorePlain]: Eliminatee v_prenex_24 vanished before elimination [2020-12-22 04:17:17,803 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 04:17:17,804 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:347, output treesize:4 [2020-12-22 04:17:17,853 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 04:17:17,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:17:17,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 34 [2020-12-22 04:17:17,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871275242] [2020-12-22 04:17:17,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-22 04:17:17,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:17:17,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-22 04:17:17,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1049, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 04:17:17,855 INFO L87 Difference]: Start difference. First operand 169 states and 213 transitions. Second operand 34 states. [2020-12-22 04:17:18,786 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-12-22 04:17:19,092 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-12-22 04:17:19,359 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2020-12-22 04:17:19,816 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2020-12-22 04:17:20,248 WARN L197 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 74 [2020-12-22 04:17:20,927 WARN L197 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 107 [2020-12-22 04:17:50,793 WARN L197 SmtUtils]: Spent 29.67 s on a formula simplification. DAG size of input: 204 DAG size of output: 163 [2020-12-22 04:18:32,917 WARN L197 SmtUtils]: Spent 41.86 s on a formula simplification. DAG size of input: 270 DAG size of output: 220 [2020-12-22 04:19:29,723 WARN L197 SmtUtils]: Spent 56.58 s on a formula simplification. DAG size of input: 276 DAG size of output: 221 [2020-12-22 04:20:25,835 WARN L197 SmtUtils]: Spent 55.88 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2020-12-22 04:20:28,701 WARN L197 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 95 [2020-12-22 04:20:28,915 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2020-12-22 04:20:29,416 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2020-12-22 04:20:29,938 WARN L197 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86