/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-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/list-ext3-properties/sll_length_check-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 05:43:48,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 05:43:48,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 05:43:48,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 05:43:48,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 05:43:48,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 05:43:48,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 05:43:48,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 05:43:48,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 05:43:48,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 05:43:48,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 05:43:48,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 05:43:48,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 05:43:48,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 05:43:48,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 05:43:48,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 05:43:48,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 05:43:48,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 05:43:48,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 05:43:48,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 05:43:48,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 05:43:48,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 05:43:48,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 05:43:48,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 05:43:48,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-07 05:43:48,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 05:43:48,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 05:43:48,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 05:43:48,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 05:43:48,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 05:43:48,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 05:43:48,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 05:43:48,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 05:43:48,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 05:43:48,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 05:43:48,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 05:43:48,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-01-07 05:43:48,363 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 05:43:48,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 05:43:48,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 05:43:48,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 05:43:48,369 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 05:43:48,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 05:43:48,370 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 05:43:48,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 05:43:48,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 05:43:48,370 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 05:43:48,372 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 05:43:48,372 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-01-07 05:43:48,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 05:43:48,372 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 05:43:48,373 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 05:43:48,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 05:43:48,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 05:43:48,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 05:43:48,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:43:48,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 05:43:48,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 05:43:48,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 05:43:48,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 05:43:48,374 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 05:43:48,375 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-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 05:43:48,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 05:43:48,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 05:43:48,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 05:43:48,831 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 05:43:48,832 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 05:43:48,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/sll_length_check-2.i [2021-01-07 05:43:48,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0e2ced4ab/a301faed37d14596b2ca6f37d2bb36d3/FLAG1475861a6 [2021-01-07 05:43:49,757 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 05:43:49,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_length_check-2.i [2021-01-07 05:43:49,781 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0e2ced4ab/a301faed37d14596b2ca6f37d2bb36d3/FLAG1475861a6 [2021-01-07 05:43:49,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0e2ced4ab/a301faed37d14596b2ca6f37d2bb36d3 [2021-01-07 05:43:49,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 05:43:49,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 05:43:49,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 05:43:49,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 05:43:49,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 05:43:49,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:43:49" (1/1) ... [2021-01-07 05:43:49,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f7e3acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:43:49, skipping insertion in model container [2021-01-07 05:43:49,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:43:49" (1/1) ... [2021-01-07 05:43:49,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 05:43:50,020 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_head~0,],base],StructAccessExpression[IdentifierExpression[~new_head~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~head~0,] left hand side expression in assignment: lhs: VariableLHS[~head,] left hand side expression in assignment: lhs: VariableLHS[~head,] [2021-01-07 05:43:50,328 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_length_check-2.i[23814,23827] [2021-01-07 05:43:50,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:43:50,343 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_head~0,],base],StructAccessExpression[IdentifierExpression[~new_head~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~head~0,] left hand side expression in assignment: lhs: VariableLHS[~head,] left hand side expression in assignment: lhs: VariableLHS[~head,] [2021-01-07 05:43:50,440 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_length_check-2.i[23814,23827] [2021-01-07 05:43:50,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:43:50,510 INFO L208 MainTranslator]: Completed translation [2021-01-07 05:43:50,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:43:50 WrapperNode [2021-01-07 05:43:50,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 05:43:50,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 05:43:50,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 05:43:50,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 05:43:50,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:43:50" (1/1) ... [2021-01-07 05:43:50,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:43:50" (1/1) ... [2021-01-07 05:43:50,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 05:43:50,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 05:43:50,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 05:43:50,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 05:43:50,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:43:50" (1/1) ... [2021-01-07 05:43:50,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:43:50" (1/1) ... [2021-01-07 05:43:50,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:43:50" (1/1) ... [2021-01-07 05:43:50,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:43:50" (1/1) ... [2021-01-07 05:43:50,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:43:50" (1/1) ... [2021-01-07 05:43:50,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:43:50" (1/1) ... [2021-01-07 05:43:50,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:43:50" (1/1) ... [2021-01-07 05:43:50,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 05:43:50,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 05:43:50,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 05:43:50,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 05:43:50,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:43:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:43:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-07 05:43:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-07 05:43:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 05:43:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-07 05:43:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-07 05:43:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 05:43:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 05:43:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 05:43:51,252 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 05:43:51,252 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-01-07 05:43:51,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:43:51 BoogieIcfgContainer [2021-01-07 05:43:51,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 05:43:51,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 05:43:51,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 05:43:51,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 05:43:51,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 05:43:49" (1/3) ... [2021-01-07 05:43:51,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496dc902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:43:51, skipping insertion in model container [2021-01-07 05:43:51,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:43:50" (2/3) ... [2021-01-07 05:43:51,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496dc902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:43:51, skipping insertion in model container [2021-01-07 05:43:51,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:43:51" (3/3) ... [2021-01-07 05:43:51,263 INFO L111 eAbstractionObserver]: Analyzing ICFG sll_length_check-2.i [2021-01-07 05:43:51,271 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 05:43:51,276 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2021-01-07 05:43:51,297 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-01-07 05:43:51,326 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 05:43:51,326 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 05:43:51,326 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 05:43:51,326 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 05:43:51,326 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 05:43:51,327 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 05:43:51,327 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 05:43:51,327 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 05:43:51,345 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2021-01-07 05:43:51,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-07 05:43:51,353 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:43:51,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:43:51,355 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:43:51,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:43:51,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1819225437, now seen corresponding path program 1 times [2021-01-07 05:43:51,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:43:51,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170978539] [2021-01-07 05:43:51,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:43:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:43:51,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170978539] [2021-01-07 05:43:51,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:43:51,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:43:51,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744718436] [2021-01-07 05:43:51,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-07 05:43:51,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:43:51,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-07 05:43:51,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 05:43:51,565 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2021-01-07 05:43:51,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:43:51,582 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2021-01-07 05:43:51,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-07 05:43:51,584 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2021-01-07 05:43:51,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:43:51,594 INFO L225 Difference]: With dead ends: 41 [2021-01-07 05:43:51,594 INFO L226 Difference]: Without dead ends: 38 [2021-01-07 05:43:51,596 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 [2021-01-07 05:43:51,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-01-07 05:43:51,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-01-07 05:43:51,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-01-07 05:43:51,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2021-01-07 05:43:51,652 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 7 [2021-01-07 05:43:51,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:43:51,652 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2021-01-07 05:43:51,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-07 05:43:51,653 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2021-01-07 05:43:51,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-07 05:43:51,654 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:43:51,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:43:51,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 05:43:51,656 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:43:51,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:43:51,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1213452566, now seen corresponding path program 1 times [2021-01-07 05:43:51,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:43:51,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473244183] [2021-01-07 05:43:51,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:43:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:51,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:43:51,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473244183] [2021-01-07 05:43:51,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:43:51,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:43:51,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339905279] [2021-01-07 05:43:51,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:43:51,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:43:51,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:43:51,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:43:51,818 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 3 states. [2021-01-07 05:43:51,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:43:51,883 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2021-01-07 05:43:51,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:43:51,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2021-01-07 05:43:51,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:43:51,886 INFO L225 Difference]: With dead ends: 64 [2021-01-07 05:43:51,886 INFO L226 Difference]: Without dead ends: 64 [2021-01-07 05:43:51,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:43:51,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-01-07 05:43:51,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 37. [2021-01-07 05:43:51,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-01-07 05:43:51,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2021-01-07 05:43:51,895 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 9 [2021-01-07 05:43:51,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:43:51,896 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2021-01-07 05:43:51,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:43:51,897 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2021-01-07 05:43:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-07 05:43:51,898 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:43:51,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:43:51,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 05:43:51,899 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:43:51,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:43:51,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1213452567, now seen corresponding path program 1 times [2021-01-07 05:43:51,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:43:51,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359847406] [2021-01-07 05:43:51,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:43:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:52,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:43:52,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359847406] [2021-01-07 05:43:52,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:43:52,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:43:52,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504234217] [2021-01-07 05:43:52,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:43:52,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:43:52,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:43:52,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:43:52,044 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 3 states. [2021-01-07 05:43:52,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:43:52,094 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2021-01-07 05:43:52,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:43:52,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2021-01-07 05:43:52,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:43:52,097 INFO L225 Difference]: With dead ends: 63 [2021-01-07 05:43:52,097 INFO L226 Difference]: Without dead ends: 63 [2021-01-07 05:43:52,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:43:52,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-01-07 05:43:52,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 36. [2021-01-07 05:43:52,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-01-07 05:43:52,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2021-01-07 05:43:52,105 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 9 [2021-01-07 05:43:52,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:43:52,105 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2021-01-07 05:43:52,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:43:52,106 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2021-01-07 05:43:52,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-07 05:43:52,106 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:43:52,107 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:43:52,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-07 05:43:52,107 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:43:52,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:43:52,108 INFO L82 PathProgramCache]: Analyzing trace with hash -2104757995, now seen corresponding path program 1 times [2021-01-07 05:43:52,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:43:52,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445630325] [2021-01-07 05:43:52,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:43:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:52,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:43:52,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445630325] [2021-01-07 05:43:52,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:43:52,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 05:43:52,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590707410] [2021-01-07 05:43:52,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 05:43:52,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:43:52,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 05:43:52,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 05:43:52,170 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 4 states. [2021-01-07 05:43:52,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:43:52,252 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2021-01-07 05:43:52,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 05:43:52,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-01-07 05:43:52,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:43:52,258 INFO L225 Difference]: With dead ends: 74 [2021-01-07 05:43:52,259 INFO L226 Difference]: Without dead ends: 74 [2021-01-07 05:43:52,259 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 [2021-01-07 05:43:52,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-01-07 05:43:52,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 41. [2021-01-07 05:43:52,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2021-01-07 05:43:52,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2021-01-07 05:43:52,272 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 11 [2021-01-07 05:43:52,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:43:52,274 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2021-01-07 05:43:52,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 05:43:52,274 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2021-01-07 05:43:52,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-07 05:43:52,275 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:43:52,275 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:43:52,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-07 05:43:52,276 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:43:52,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:43:52,276 INFO L82 PathProgramCache]: Analyzing trace with hash -48409076, now seen corresponding path program 1 times [2021-01-07 05:43:52,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:43:52,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819408393] [2021-01-07 05:43:52,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:43:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:52,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-07 05:43:52,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819408393] [2021-01-07 05:43:52,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:43:52,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-07 05:43:52,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952431133] [2021-01-07 05:43:52,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 05:43:52,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:43:52,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 05:43:52,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:43:52,410 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand 5 states. [2021-01-07 05:43:52,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:43:52,481 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2021-01-07 05:43:52,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 05:43:52,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-01-07 05:43:52,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:43:52,483 INFO L225 Difference]: With dead ends: 67 [2021-01-07 05:43:52,483 INFO L226 Difference]: Without dead ends: 67 [2021-01-07 05:43:52,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-07 05:43:52,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-01-07 05:43:52,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 45. [2021-01-07 05:43:52,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-01-07 05:43:52,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2021-01-07 05:43:52,495 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 14 [2021-01-07 05:43:52,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:43:52,495 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2021-01-07 05:43:52,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 05:43:52,495 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2021-01-07 05:43:52,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-07 05:43:52,496 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:43:52,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:43:52,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-07 05:43:52,497 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:43:52,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:43:52,498 INFO L82 PathProgramCache]: Analyzing trace with hash 347063660, now seen corresponding path program 1 times [2021-01-07 05:43:52,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:43:52,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249981037] [2021-01-07 05:43:52,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:43:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:52,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:43:52,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249981037] [2021-01-07 05:43:52,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200225476] [2021-01-07 05:43:52,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:43:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:52,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-07 05:43:52,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:43:52,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:43:52,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:43:52,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-01-07 05:43:52,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969230180] [2021-01-07 05:43:52,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-07 05:43:52,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:43:52,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-07 05:43:52,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-01-07 05:43:52,817 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 7 states. [2021-01-07 05:43:52,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:43:52,934 INFO L93 Difference]: Finished difference Result 80 states and 88 transitions. [2021-01-07 05:43:52,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 05:43:52,935 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2021-01-07 05:43:52,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:43:52,941 INFO L225 Difference]: With dead ends: 80 [2021-01-07 05:43:52,941 INFO L226 Difference]: Without dead ends: 80 [2021-01-07 05:43:52,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-01-07 05:43:52,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-01-07 05:43:52,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 41. [2021-01-07 05:43:52,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2021-01-07 05:43:52,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2021-01-07 05:43:52,956 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 15 [2021-01-07 05:43:52,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:43:52,957 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2021-01-07 05:43:52,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-07 05:43:52,957 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2021-01-07 05:43:52,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-07 05:43:52,958 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:43:52,958 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:43:53,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-01-07 05:43:53,160 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:43:53,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:43:53,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1919707581, now seen corresponding path program 2 times [2021-01-07 05:43:53,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:43:53,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381817735] [2021-01-07 05:43:53,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:43:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:53,265 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-07 05:43:53,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381817735] [2021-01-07 05:43:53,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:43:53,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-07 05:43:53,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660735740] [2021-01-07 05:43:53,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 05:43:53,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:43:53,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 05:43:53,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:43:53,271 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 6 states. [2021-01-07 05:43:53,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:43:53,439 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2021-01-07 05:43:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 05:43:53,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2021-01-07 05:43:53,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:43:53,441 INFO L225 Difference]: With dead ends: 77 [2021-01-07 05:43:53,441 INFO L226 Difference]: Without dead ends: 77 [2021-01-07 05:43:53,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-07 05:43:53,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-01-07 05:43:53,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 43. [2021-01-07 05:43:53,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2021-01-07 05:43:53,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2021-01-07 05:43:53,447 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 19 [2021-01-07 05:43:53,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:43:53,448 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2021-01-07 05:43:53,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 05:43:53,448 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2021-01-07 05:43:53,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-07 05:43:53,449 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:43:53,449 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:43:53,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-07 05:43:53,449 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:43:53,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:43:53,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1919707580, now seen corresponding path program 1 times [2021-01-07 05:43:53,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:43:53,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622993332] [2021-01-07 05:43:53,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:43:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:53,545 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-07 05:43:53,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622993332] [2021-01-07 05:43:53,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:43:53,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-07 05:43:53,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676163499] [2021-01-07 05:43:53,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 05:43:53,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:43:53,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 05:43:53,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:43:53,550 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 6 states. [2021-01-07 05:43:53,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:43:53,685 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2021-01-07 05:43:53,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 05:43:53,686 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2021-01-07 05:43:53,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:43:53,687 INFO L225 Difference]: With dead ends: 63 [2021-01-07 05:43:53,687 INFO L226 Difference]: Without dead ends: 63 [2021-01-07 05:43:53,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-07 05:43:53,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-01-07 05:43:53,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 43. [2021-01-07 05:43:53,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2021-01-07 05:43:53,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2021-01-07 05:43:53,692 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 19 [2021-01-07 05:43:53,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:43:53,693 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2021-01-07 05:43:53,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 05:43:53,693 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2021-01-07 05:43:53,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-07 05:43:53,694 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:43:53,694 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:43:53,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-07 05:43:53,695 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:43:53,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:43:53,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1774366323, now seen corresponding path program 1 times [2021-01-07 05:43:53,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:43:53,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050911850] [2021-01-07 05:43:53,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:43:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:53,758 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-07 05:43:53,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050911850] [2021-01-07 05:43:53,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:43:53,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-07 05:43:53,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712223769] [2021-01-07 05:43:53,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 05:43:53,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:43:53,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 05:43:53,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:43:53,761 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 6 states. [2021-01-07 05:43:53,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:43:53,854 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2021-01-07 05:43:53,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 05:43:53,855 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2021-01-07 05:43:53,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:43:53,856 INFO L225 Difference]: With dead ends: 44 [2021-01-07 05:43:53,856 INFO L226 Difference]: Without dead ends: 44 [2021-01-07 05:43:53,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-07 05:43:53,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-01-07 05:43:53,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2021-01-07 05:43:53,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2021-01-07 05:43:53,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2021-01-07 05:43:53,870 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 22 [2021-01-07 05:43:53,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:43:53,870 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2021-01-07 05:43:53,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 05:43:53,871 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2021-01-07 05:43:53,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-07 05:43:53,872 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:43:53,872 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:43:53,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-07 05:43:53,873 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:43:53,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:43:53,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1775998621, now seen corresponding path program 1 times [2021-01-07 05:43:53,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:43:53,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167880344] [2021-01-07 05:43:53,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:43:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:54,118 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:43:54,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167880344] [2021-01-07 05:43:54,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216722328] [2021-01-07 05:43:54,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:43:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:54,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 37 conjunts are in the unsatisfiable core [2021-01-07 05:43:54,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:43:54,288 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 [2021-01-07 05:43:54,289 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:54,292 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:54,293 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:43:54,293 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-01-07 05:43:54,337 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:54,338 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2021-01-07 05:43:54,341 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:54,363 INFO L625 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2021-01-07 05:43:54,365 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:43:54,365 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2021-01-07 05:43:54,455 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 [2021-01-07 05:43:54,458 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:54,477 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:54,480 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:43:54,481 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2021-01-07 05:43:54,642 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-01-07 05:43:54,644 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:54,652 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:54,657 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:43:54,657 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:28, output treesize:11 [2021-01-07 05:43:54,688 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:43:54,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:43:54,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2021-01-07 05:43:54,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624030150] [2021-01-07 05:43:54,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-07 05:43:54,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:43:54,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-07 05:43:54,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-01-07 05:43:54,691 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 16 states. [2021-01-07 05:43:55,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:43:55,232 INFO L93 Difference]: Finished difference Result 83 states and 88 transitions. [2021-01-07 05:43:55,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-07 05:43:55,233 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 22 [2021-01-07 05:43:55,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:43:55,234 INFO L225 Difference]: With dead ends: 83 [2021-01-07 05:43:55,234 INFO L226 Difference]: Without dead ends: 83 [2021-01-07 05:43:55,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2021-01-07 05:43:55,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-01-07 05:43:55,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 46. [2021-01-07 05:43:55,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-01-07 05:43:55,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2021-01-07 05:43:55,239 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 22 [2021-01-07 05:43:55,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:43:55,240 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2021-01-07 05:43:55,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-07 05:43:55,240 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2021-01-07 05:43:55,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-07 05:43:55,240 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:43:55,241 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:43:55,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-01-07 05:43:55,454 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:43:55,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:43:55,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1775998622, now seen corresponding path program 1 times [2021-01-07 05:43:55,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:43:55,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204384405] [2021-01-07 05:43:55,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:43:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:55,649 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:43:55,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204384405] [2021-01-07 05:43:55,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839937334] [2021-01-07 05:43:55,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-07 05:43:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:55,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 48 conjunts are in the unsatisfiable core [2021-01-07 05:43:55,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:43:55,751 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 [2021-01-07 05:43:55,752 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:55,757 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:55,758 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:43:55,758 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2021-01-07 05:43:55,825 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:55,825 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2021-01-07 05:43:55,828 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:55,854 INFO L625 ElimStorePlain]: treesize reduction 14, result has 54.8 percent of original size [2021-01-07 05:43:55,855 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:43:55,855 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:17 [2021-01-07 05:43:55,898 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 [2021-01-07 05:43:55,899 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:55,914 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:55,918 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 [2021-01-07 05:43:55,919 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:55,933 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:55,935 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:43:55,935 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:28 [2021-01-07 05:43:56,104 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-01-07 05:43:56,106 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:56,119 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:56,123 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-01-07 05:43:56,124 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:56,134 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:56,140 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. [2021-01-07 05:43:56,140 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:42, output treesize:14 [2021-01-07 05:43:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:43:56,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:43:56,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2021-01-07 05:43:56,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999223311] [2021-01-07 05:43:56,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-07 05:43:56,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:43:56,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-07 05:43:56,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-01-07 05:43:56,220 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand 19 states. [2021-01-07 05:43:56,763 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-01-07 05:43:56,931 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2021-01-07 05:43:57,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:43:57,098 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2021-01-07 05:43:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-07 05:43:57,099 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2021-01-07 05:43:57,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:43:57,100 INFO L225 Difference]: With dead ends: 69 [2021-01-07 05:43:57,101 INFO L226 Difference]: Without dead ends: 69 [2021-01-07 05:43:57,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=179, Invalid=523, Unknown=0, NotChecked=0, Total=702 [2021-01-07 05:43:57,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-01-07 05:43:57,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 46. [2021-01-07 05:43:57,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-01-07 05:43:57,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2021-01-07 05:43:57,107 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 22 [2021-01-07 05:43:57,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:43:57,107 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2021-01-07 05:43:57,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-07 05:43:57,107 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2021-01-07 05:43:57,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-07 05:43:57,108 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:43:57,108 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:43:57,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-01-07 05:43:57,313 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:43:57,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:43:57,314 INFO L82 PathProgramCache]: Analyzing trace with hash -928802855, now seen corresponding path program 1 times [2021-01-07 05:43:57,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:43:57,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276045] [2021-01-07 05:43:57,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:43:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:57,412 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:43:57,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276045] [2021-01-07 05:43:57,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275989985] [2021-01-07 05:43:57,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-07 05:43:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:57,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 37 conjunts are in the unsatisfiable core [2021-01-07 05:43:57,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:43:57,559 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-01-07 05:43:57,559 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:57,567 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:57,569 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:43:57,569 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:15 [2021-01-07 05:43:57,702 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-01-07 05:43:57,706 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:57,712 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:57,715 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:43:57,715 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:4 [2021-01-07 05:43:57,721 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:43:57,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:43:57,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 15 [2021-01-07 05:43:57,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134510909] [2021-01-07 05:43:57,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-07 05:43:57,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:43:57,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-07 05:43:57,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2021-01-07 05:43:57,733 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand 15 states. [2021-01-07 05:43:58,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:43:58,166 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2021-01-07 05:43:58,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-07 05:43:58,166 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2021-01-07 05:43:58,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:43:58,167 INFO L225 Difference]: With dead ends: 50 [2021-01-07 05:43:58,167 INFO L226 Difference]: Without dead ends: 50 [2021-01-07 05:43:58,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=172, Invalid=428, Unknown=0, NotChecked=0, Total=600 [2021-01-07 05:43:58,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-01-07 05:43:58,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2021-01-07 05:43:58,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-01-07 05:43:58,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2021-01-07 05:43:58,171 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 25 [2021-01-07 05:43:58,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:43:58,171 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2021-01-07 05:43:58,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-07 05:43:58,171 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2021-01-07 05:43:58,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-07 05:43:58,172 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:43:58,172 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:43:58,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:43:58,388 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:43:58,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:43:58,389 INFO L82 PathProgramCache]: Analyzing trace with hash -927170557, now seen corresponding path program 2 times [2021-01-07 05:43:58,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:43:58,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007190842] [2021-01-07 05:43:58,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:43:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:43:58,654 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:43:58,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007190842] [2021-01-07 05:43:58,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488011427] [2021-01-07 05:43:58,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-07 05:43:58,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-07 05:43:58,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 05:43:58,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 61 conjunts are in the unsatisfiable core [2021-01-07 05:43:58,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:43:58,813 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 [2021-01-07 05:43:58,814 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:58,823 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:58,827 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 [2021-01-07 05:43:58,828 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:58,835 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:58,836 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:43:58,837 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2021-01-07 05:43:58,913 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 [2021-01-07 05:43:58,914 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:58,926 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:58,927 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:43:58,928 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:29 [2021-01-07 05:43:58,990 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:43:58,999 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:59,000 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 34 [2021-01-07 05:43:59,004 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:59,061 INFO L625 ElimStorePlain]: treesize reduction 12, result has 81.8 percent of original size [2021-01-07 05:43:59,072 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:43:59,084 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:59,085 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 34 [2021-01-07 05:43:59,090 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:43:59,147 INFO L625 ElimStorePlain]: treesize reduction 16, result has 75.8 percent of original size [2021-01-07 05:43:59,149 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:43:59,149 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:54, output treesize:64 [2021-01-07 05:43:59,398 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:43:59,403 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:43:59,407 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:43:59,720 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:43:59,746 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:43:59,774 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:43:59,855 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:43:59,860 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:59,860 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 40 [2021-01-07 05:43:59,863 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:43:59,865 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:43:59,866 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:43:59,963 INFO L625 ElimStorePlain]: treesize reduction 15, result has 89.1 percent of original size [2021-01-07 05:43:59,976 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:43:59,977 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 28 [2021-01-07 05:43:59,980 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-07 05:43:59,982 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:00,014 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:00,021 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:44:00,025 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:00,026 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 29 [2021-01-07 05:44:00,028 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:00,061 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:00,071 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:00,072 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2021-01-07 05:44:00,075 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:44:00,078 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 3 xjuncts. [2021-01-07 05:44:00,146 INFO L625 ElimStorePlain]: treesize reduction 8, result has 85.7 percent of original size [2021-01-07 05:44:00,152 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2021-01-07 05:44:00,153 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:165, output treesize:25 [2021-01-07 05:44:00,303 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:00,304 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:44:00,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:44:00,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-01-07 05:44:00,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021764355] [2021-01-07 05:44:00,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-07 05:44:00,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:44:00,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-07 05:44:00,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=648, Unknown=0, NotChecked=0, Total=702 [2021-01-07 05:44:00,363 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 27 states. [2021-01-07 05:44:01,397 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-07 05:44:01,732 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2021-01-07 05:44:02,133 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2021-01-07 05:44:02,699 WARN L197 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2021-01-07 05:44:03,017 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 84 [2021-01-07 05:44:03,476 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 92 [2021-01-07 05:44:03,781 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2021-01-07 05:44:04,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:44:04,278 INFO L93 Difference]: Finished difference Result 94 states and 99 transitions. [2021-01-07 05:44:04,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-07 05:44:04,279 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 25 [2021-01-07 05:44:04,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:44:04,280 INFO L225 Difference]: With dead ends: 94 [2021-01-07 05:44:04,280 INFO L226 Difference]: Without dead ends: 94 [2021-01-07 05:44:04,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=217, Invalid=1589, Unknown=0, NotChecked=0, Total=1806 [2021-01-07 05:44:04,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-01-07 05:44:04,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 59. [2021-01-07 05:44:04,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-01-07 05:44:04,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2021-01-07 05:44:04,285 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 25 [2021-01-07 05:44:04,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:44:04,286 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2021-01-07 05:44:04,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2021-01-07 05:44:04,286 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2021-01-07 05:44:04,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-07 05:44:04,287 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:44:04,287 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:44:04,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-07 05:44:04,501 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:44:04,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:44:04,502 INFO L82 PathProgramCache]: Analyzing trace with hash -404984653, now seen corresponding path program 2 times [2021-01-07 05:44:04,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:44:04,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309443665] [2021-01-07 05:44:04,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:44:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:04,614 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-01-07 05:44:04,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309443665] [2021-01-07 05:44:04,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348553483] [2021-01-07 05:44:04,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-07 05:44:04,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-07 05:44:04,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 05:44:04,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-07 05:44:04,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:44:04,770 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-01-07 05:44:04,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:44:04,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-01-07 05:44:04,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145745127] [2021-01-07 05:44:04,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-07 05:44:04,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:44:04,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-07 05:44:04,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:44:04,772 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 8 states. [2021-01-07 05:44:04,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:44:04,865 INFO L93 Difference]: Finished difference Result 135 states and 146 transitions. [2021-01-07 05:44:04,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 05:44:04,865 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2021-01-07 05:44:04,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:44:04,866 INFO L225 Difference]: With dead ends: 135 [2021-01-07 05:44:04,866 INFO L226 Difference]: Without dead ends: 135 [2021-01-07 05:44:04,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-01-07 05:44:04,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-01-07 05:44:04,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 97. [2021-01-07 05:44:04,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-01-07 05:44:04,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2021-01-07 05:44:04,871 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 28 [2021-01-07 05:44:04,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:44:04,872 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2021-01-07 05:44:04,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-07 05:44:04,872 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2021-01-07 05:44:04,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-07 05:44:04,873 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:44:04,873 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:44:05,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:44:05,088 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:44:05,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:44:05,089 INFO L82 PathProgramCache]: Analyzing trace with hash 330379154, now seen corresponding path program 1 times [2021-01-07 05:44:05,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:44:05,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238554884] [2021-01-07 05:44:05,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:44:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:05,157 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-07 05:44:05,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238554884] [2021-01-07 05:44:05,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:44:05,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-07 05:44:05,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477132640] [2021-01-07 05:44:05,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-07 05:44:05,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:44:05,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-07 05:44:05,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-07 05:44:05,159 INFO L87 Difference]: Start difference. First operand 97 states and 107 transitions. Second operand 7 states. [2021-01-07 05:44:05,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:44:05,289 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2021-01-07 05:44:05,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 05:44:05,289 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2021-01-07 05:44:05,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:44:05,292 INFO L225 Difference]: With dead ends: 108 [2021-01-07 05:44:05,292 INFO L226 Difference]: Without dead ends: 108 [2021-01-07 05:44:05,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-07 05:44:05,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-01-07 05:44:05,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 98. [2021-01-07 05:44:05,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2021-01-07 05:44:05,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2021-01-07 05:44:05,307 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 29 [2021-01-07 05:44:05,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:44:05,309 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2021-01-07 05:44:05,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-07 05:44:05,310 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2021-01-07 05:44:05,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-07 05:44:05,316 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:44:05,316 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:44:05,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-07 05:44:05,316 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:44:05,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:44:05,317 INFO L82 PathProgramCache]: Analyzing trace with hash 330379155, now seen corresponding path program 1 times [2021-01-07 05:44:05,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:44:05,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858874748] [2021-01-07 05:44:05,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:44:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:05,433 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-01-07 05:44:05,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858874748] [2021-01-07 05:44:05,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:44:05,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-07 05:44:05,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284641659] [2021-01-07 05:44:05,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-07 05:44:05,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:44:05,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-07 05:44:05,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-07 05:44:05,436 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 7 states. [2021-01-07 05:44:05,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:44:05,591 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2021-01-07 05:44:05,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 05:44:05,591 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2021-01-07 05:44:05,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:44:05,592 INFO L225 Difference]: With dead ends: 106 [2021-01-07 05:44:05,592 INFO L226 Difference]: Without dead ends: 106 [2021-01-07 05:44:05,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-07 05:44:05,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-01-07 05:44:05,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 100. [2021-01-07 05:44:05,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-01-07 05:44:05,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 111 transitions. [2021-01-07 05:44:05,596 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 111 transitions. Word has length 29 [2021-01-07 05:44:05,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:44:05,597 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 111 transitions. [2021-01-07 05:44:05,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-07 05:44:05,597 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 111 transitions. [2021-01-07 05:44:05,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-07 05:44:05,602 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:44:05,602 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:44:05,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-07 05:44:05,603 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:44:05,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:44:05,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1624346598, now seen corresponding path program 3 times [2021-01-07 05:44:05,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:44:05,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156220492] [2021-01-07 05:44:05,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:44:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:05,674 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-01-07 05:44:05,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156220492] [2021-01-07 05:44:05,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999961327] [2021-01-07 05:44:05,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-07 05:44:05,755 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-01-07 05:44:05,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 05:44:05,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-07 05:44:05,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:44:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-01-07 05:44:05,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-07 05:44:05,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-01-07 05:44:05,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870519474] [2021-01-07 05:44:05,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 05:44:05,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:44:05,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 05:44:05,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:44:05,807 INFO L87 Difference]: Start difference. First operand 100 states and 111 transitions. Second operand 6 states. [2021-01-07 05:44:05,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:44:05,859 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2021-01-07 05:44:05,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 05:44:05,859 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2021-01-07 05:44:05,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:44:05,860 INFO L225 Difference]: With dead ends: 104 [2021-01-07 05:44:05,860 INFO L226 Difference]: Without dead ends: 104 [2021-01-07 05:44:05,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-01-07 05:44:05,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-01-07 05:44:05,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 87. [2021-01-07 05:44:05,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2021-01-07 05:44:05,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2021-01-07 05:44:05,864 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 29 [2021-01-07 05:44:05,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:44:05,864 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2021-01-07 05:44:05,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 05:44:05,865 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2021-01-07 05:44:05,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-01-07 05:44:05,865 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:44:05,865 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:44:06,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-01-07 05:44:06,081 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:44:06,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:44:06,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1651817732, now seen corresponding path program 1 times [2021-01-07 05:44:06,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:44:06,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476228175] [2021-01-07 05:44:06,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:44:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:06,132 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-01-07 05:44:06,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476228175] [2021-01-07 05:44:06,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:44:06,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-07 05:44:06,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122840789] [2021-01-07 05:44:06,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-07 05:44:06,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:44:06,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-07 05:44:06,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-07 05:44:06,134 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand 7 states. [2021-01-07 05:44:06,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:44:06,237 INFO L93 Difference]: Finished difference Result 90 states and 97 transitions. [2021-01-07 05:44:06,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 05:44:06,237 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2021-01-07 05:44:06,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:44:06,238 INFO L225 Difference]: With dead ends: 90 [2021-01-07 05:44:06,238 INFO L226 Difference]: Without dead ends: 90 [2021-01-07 05:44:06,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-07 05:44:06,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-01-07 05:44:06,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2021-01-07 05:44:06,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2021-01-07 05:44:06,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 94 transitions. [2021-01-07 05:44:06,241 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 94 transitions. Word has length 30 [2021-01-07 05:44:06,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:44:06,242 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 94 transitions. [2021-01-07 05:44:06,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-07 05:44:06,242 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 94 transitions. [2021-01-07 05:44:06,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-01-07 05:44:06,242 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:44:06,243 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:44:06,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-07 05:44:06,243 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:44:06,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:44:06,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1719710876, now seen corresponding path program 1 times [2021-01-07 05:44:06,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:44:06,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679216136] [2021-01-07 05:44:06,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:44:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:06,292 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-01-07 05:44:06,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679216136] [2021-01-07 05:44:06,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504585009] [2021-01-07 05:44:06,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-07 05:44:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:06,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 7 conjunts are in the unsatisfiable core [2021-01-07 05:44:06,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:44:06,420 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-01-07 05:44:06,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:44:06,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-01-07 05:44:06,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703710809] [2021-01-07 05:44:06,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-07 05:44:06,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:44:06,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-07 05:44:06,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:44:06,424 INFO L87 Difference]: Start difference. First operand 87 states and 94 transitions. Second operand 8 states. [2021-01-07 05:44:06,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:44:06,518 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2021-01-07 05:44:06,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-07 05:44:06,519 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2021-01-07 05:44:06,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:44:06,520 INFO L225 Difference]: With dead ends: 95 [2021-01-07 05:44:06,520 INFO L226 Difference]: Without dead ends: 95 [2021-01-07 05:44:06,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-01-07 05:44:06,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-01-07 05:44:06,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 78. [2021-01-07 05:44:06,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-01-07 05:44:06,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 84 transitions. [2021-01-07 05:44:06,523 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 84 transitions. Word has length 31 [2021-01-07 05:44:06,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:44:06,523 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 84 transitions. [2021-01-07 05:44:06,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-07 05:44:06,523 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 84 transitions. [2021-01-07 05:44:06,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-01-07 05:44:06,524 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:44:06,524 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:44:06,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:44:06,738 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:44:06,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:44:06,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1739610939, now seen corresponding path program 1 times [2021-01-07 05:44:06,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:44:06,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102915504] [2021-01-07 05:44:06,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:44:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-01-07 05:44:06,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102915504] [2021-01-07 05:44:06,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:44:06,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-07 05:44:06,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280014606] [2021-01-07 05:44:06,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-07 05:44:06,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:44:06,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-07 05:44:06,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-07 05:44:06,805 INFO L87 Difference]: Start difference. First operand 78 states and 84 transitions. Second operand 7 states. [2021-01-07 05:44:06,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:44:06,918 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2021-01-07 05:44:06,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 05:44:06,919 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2021-01-07 05:44:06,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:44:06,920 INFO L225 Difference]: With dead ends: 79 [2021-01-07 05:44:06,920 INFO L226 Difference]: Without dead ends: 79 [2021-01-07 05:44:06,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-07 05:44:06,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-01-07 05:44:06,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-01-07 05:44:06,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2021-01-07 05:44:06,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2021-01-07 05:44:06,924 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 32 [2021-01-07 05:44:06,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:44:06,924 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2021-01-07 05:44:06,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-07 05:44:06,924 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2021-01-07 05:44:06,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-01-07 05:44:06,925 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:44:06,925 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:44:06,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-07 05:44:06,925 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:44:06,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:44:06,926 INFO L82 PathProgramCache]: Analyzing trace with hash -183294639, now seen corresponding path program 1 times [2021-01-07 05:44:06,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:44:06,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675969840] [2021-01-07 05:44:06,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:44:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:07,119 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-07 05:44:07,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675969840] [2021-01-07 05:44:07,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996206879] [2021-01-07 05:44:07,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:44:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:07,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 57 conjunts are in the unsatisfiable core [2021-01-07 05:44:07,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:44:07,231 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 [2021-01-07 05:44:07,232 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:07,234 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:07,235 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:44:07,235 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-01-07 05:44:07,258 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:07,259 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2021-01-07 05:44:07,261 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:07,278 INFO L625 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2021-01-07 05:44:07,278 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:44:07,279 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2021-01-07 05:44:07,313 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 [2021-01-07 05:44:07,314 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:07,324 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:07,325 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:44:07,326 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2021-01-07 05:44:07,439 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:07,439 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 3 case distinctions, treesize of input 21 treesize of output 78 [2021-01-07 05:44:07,442 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:07,479 INFO L625 ElimStorePlain]: treesize reduction 40, result has 42.0 percent of original size [2021-01-07 05:44:07,480 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:44:07,480 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:29 [2021-01-07 05:44:07,530 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_8|], 2=[|v_#memory_$Pointer$.base_11|]} [2021-01-07 05:44:07,535 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 [2021-01-07 05:44:07,536 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:07,557 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:07,564 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:44:07,575 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:07,575 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 36 [2021-01-07 05:44:07,577 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:07,581 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:07,582 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:44:07,631 INFO L625 ElimStorePlain]: treesize reduction 12, result has 81.5 percent of original size [2021-01-07 05:44:07,634 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:07,635 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. [2021-01-07 05:44:07,635 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:54, output treesize:63 [2021-01-07 05:44:07,636 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:07,702 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:07,924 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2021-01-07 05:44:07,926 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:07,945 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:07,948 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. [2021-01-07 05:44:07,948 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:66, output treesize:47 [2021-01-07 05:44:08,102 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:44:08,107 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:08,107 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2021-01-07 05:44:08,109 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:08,113 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:08,114 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:44:08,132 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:08,135 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:08,137 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:08,138 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:44:08,140 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-07 05:44:08,140 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:51, output treesize:24 [2021-01-07 05:44:08,142 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:08,143 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:08,144 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:44:08,176 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-07 05:44:08,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:44:08,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 24 [2021-01-07 05:44:08,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712115358] [2021-01-07 05:44:08,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-07 05:44:08,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:44:08,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-07 05:44:08,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2021-01-07 05:44:08,179 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand 25 states. [2021-01-07 05:44:09,028 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-01-07 05:44:09,238 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-01-07 05:44:09,530 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-01-07 05:44:09,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:44:09,766 INFO L93 Difference]: Finished difference Result 104 states and 111 transitions. [2021-01-07 05:44:09,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-07 05:44:09,767 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 32 [2021-01-07 05:44:09,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:44:09,769 INFO L225 Difference]: With dead ends: 104 [2021-01-07 05:44:09,769 INFO L226 Difference]: Without dead ends: 104 [2021-01-07 05:44:09,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=342, Invalid=1064, Unknown=0, NotChecked=0, Total=1406 [2021-01-07 05:44:09,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-01-07 05:44:09,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 82. [2021-01-07 05:44:09,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2021-01-07 05:44:09,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2021-01-07 05:44:09,774 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 32 [2021-01-07 05:44:09,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:44:09,774 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2021-01-07 05:44:09,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-01-07 05:44:09,775 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2021-01-07 05:44:09,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-01-07 05:44:09,775 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:44:09,775 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:44:09,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:44:09,991 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:44:09,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:44:09,992 INFO L82 PathProgramCache]: Analyzing trace with hash -183294638, now seen corresponding path program 1 times [2021-01-07 05:44:09,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:44:09,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096455921] [2021-01-07 05:44:09,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:44:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:10,330 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-07 05:44:10,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096455921] [2021-01-07 05:44:10,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585235879] [2021-01-07 05:44:10,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:44:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:10,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 73 conjunts are in the unsatisfiable core [2021-01-07 05:44:10,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:44:10,426 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 [2021-01-07 05:44:10,427 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:10,432 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:10,435 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 [2021-01-07 05:44:10,436 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:10,443 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:10,443 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:44:10,444 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2021-01-07 05:44:10,538 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:10,538 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2021-01-07 05:44:10,540 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:10,566 INFO L625 ElimStorePlain]: treesize reduction 14, result has 66.7 percent of original size [2021-01-07 05:44:10,580 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:10,581 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2021-01-07 05:44:10,582 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:10,613 INFO L625 ElimStorePlain]: treesize reduction 14, result has 65.9 percent of original size [2021-01-07 05:44:10,614 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:44:10,615 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:27 [2021-01-07 05:44:10,676 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 [2021-01-07 05:44:10,676 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:10,693 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:10,698 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 [2021-01-07 05:44:10,701 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:10,717 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:10,719 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:44:10,719 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:49, output treesize:42 [2021-01-07 05:44:10,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:44:10,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:44:10,840 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:10,840 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 21 treesize of output 38 [2021-01-07 05:44:10,842 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:10,864 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:10,887 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:10,887 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 42 [2021-01-07 05:44:10,890 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:44:10,891 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:10,906 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:10,923 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:10,924 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:44:10,925 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:56, output treesize:48 [2021-01-07 05:44:11,008 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 [2021-01-07 05:44:11,009 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:11,036 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:11,041 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 29 treesize of output 24 [2021-01-07 05:44:11,042 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:11,090 INFO L625 ElimStorePlain]: treesize reduction 4, result has 93.8 percent of original size [2021-01-07 05:44:11,092 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:44:11,092 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:73, output treesize:83 [2021-01-07 05:44:11,567 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:44:11,571 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:11,572 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 51 [2021-01-07 05:44:11,574 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:44:11,576 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:44:11,577 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:44:11,624 INFO L625 ElimStorePlain]: treesize reduction 4, result has 94.3 percent of original size [2021-01-07 05:44:11,628 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 16 [2021-01-07 05:44:11,630 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:11,645 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:11,648 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-07 05:44:11,649 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:113, output treesize:27 [2021-01-07 05:44:11,786 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-07 05:44:11,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:44:11,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-01-07 05:44:11,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656306012] [2021-01-07 05:44:11,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-01-07 05:44:11,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:44:11,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-01-07 05:44:11,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=833, Unknown=0, NotChecked=0, Total=930 [2021-01-07 05:44:11,788 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 31 states. [2021-01-07 05:44:12,577 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2021-01-07 05:44:12,759 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2021-01-07 05:44:13,178 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2021-01-07 05:44:13,643 WARN L197 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 106 [2021-01-07 05:44:13,856 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2021-01-07 05:44:14,379 WARN L197 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 112 [2021-01-07 05:44:14,712 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 112 [2021-01-07 05:44:15,095 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 117 [2021-01-07 05:44:15,432 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 88 [2021-01-07 05:44:15,959 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-01-07 05:44:16,150 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-01-07 05:44:16,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:44:16,159 INFO L93 Difference]: Finished difference Result 130 states and 137 transitions. [2021-01-07 05:44:16,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-07 05:44:16,170 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 32 [2021-01-07 05:44:16,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:44:16,171 INFO L225 Difference]: With dead ends: 130 [2021-01-07 05:44:16,171 INFO L226 Difference]: Without dead ends: 130 [2021-01-07 05:44:16,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=493, Invalid=1859, Unknown=0, NotChecked=0, Total=2352 [2021-01-07 05:44:16,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-01-07 05:44:16,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 82. [2021-01-07 05:44:16,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2021-01-07 05:44:16,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2021-01-07 05:44:16,178 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 32 [2021-01-07 05:44:16,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:44:16,178 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2021-01-07 05:44:16,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2021-01-07 05:44:16,178 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2021-01-07 05:44:16,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-01-07 05:44:16,179 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:44:16,179 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:44:16,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:44:16,393 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:44:16,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:44:16,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1673970377, now seen corresponding path program 1 times [2021-01-07 05:44:16,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:44:16,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405952216] [2021-01-07 05:44:16,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:44:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:16,609 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:44:16,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405952216] [2021-01-07 05:44:16,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973646680] [2021-01-07 05:44:16,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:44:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:16,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 67 conjunts are in the unsatisfiable core [2021-01-07 05:44:16,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:44:16,704 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-01-07 05:44:16,705 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:16,711 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:16,712 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:44:16,712 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2021-01-07 05:44:16,815 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:16,816 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 12 treesize of output 28 [2021-01-07 05:44:16,817 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:16,843 INFO L625 ElimStorePlain]: treesize reduction 14, result has 63.2 percent of original size [2021-01-07 05:44:16,844 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:44:16,844 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:24 [2021-01-07 05:44:16,891 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 [2021-01-07 05:44:16,892 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:16,910 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:16,914 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-01-07 05:44:16,915 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:16,932 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:16,934 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:44:16,934 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:49, output treesize:43 [2021-01-07 05:44:17,176 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-01-07 05:44:17,177 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:17,207 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:17,209 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:44:17,209 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:42 [2021-01-07 05:44:17,674 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:44:17,689 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:17,690 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 47 [2021-01-07 05:44:17,692 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:44:17,693 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:44:17,693 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-07 05:44:17,695 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:44:17,696 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:44:17,719 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:17,721 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:44:17,722 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:44:17,724 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-07 05:44:17,726 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:44:17,727 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:56, output treesize:32 [2021-01-07 05:44:17,728 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:44:17,798 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:44:17,961 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 0 case distinctions, treesize of input 17 treesize of output 17 [2021-01-07 05:44:17,963 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:17,976 INFO L625 ElimStorePlain]: treesize reduction 4, result has 78.9 percent of original size [2021-01-07 05:44:17,977 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. [2021-01-07 05:44:17,977 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:15 [2021-01-07 05:44:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:44:18,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:44:18,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19] total 33 [2021-01-07 05:44:18,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614468590] [2021-01-07 05:44:18,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-01-07 05:44:18,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:44:18,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-01-07 05:44:18,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1042, Unknown=0, NotChecked=0, Total=1122 [2021-01-07 05:44:18,055 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand 34 states. [2021-01-07 05:44:18,750 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-01-07 05:44:19,153 WARN L197 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2021-01-07 05:44:19,731 WARN L197 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2021-01-07 05:44:20,131 WARN L197 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2021-01-07 05:44:20,737 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2021-01-07 05:44:22,792 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-01-07 05:44:25,782 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-01-07 05:44:30,542 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-01-07 05:44:35,683 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-01-07 05:44:39,486 WARN L197 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 123 [2021-01-07 05:44:43,228 WARN L197 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 122 [2021-01-07 05:44:53,678 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-01-07 05:44:56,965 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-01-07 05:44:57,272 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-01-07 05:44:57,478 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-01-07 05:44:58,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:44:58,569 INFO L93 Difference]: Finished difference Result 110 states and 117 transitions. [2021-01-07 05:44:58,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-07 05:44:58,570 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 35 [2021-01-07 05:44:58,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:44:58,571 INFO L225 Difference]: With dead ends: 110 [2021-01-07 05:44:58,571 INFO L226 Difference]: Without dead ends: 110 [2021-01-07 05:44:58,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=550, Invalid=2748, Unknown=8, NotChecked=0, Total=3306 [2021-01-07 05:44:58,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-01-07 05:44:58,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 95. [2021-01-07 05:44:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2021-01-07 05:44:58,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 105 transitions. [2021-01-07 05:44:58,576 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 105 transitions. Word has length 35 [2021-01-07 05:44:58,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:44:58,576 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 105 transitions. [2021-01-07 05:44:58,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2021-01-07 05:44:58,576 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 105 transitions. [2021-01-07 05:44:58,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-01-07 05:44:58,577 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:44:58,577 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:44:58,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-01-07 05:44:58,778 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:44:58,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:44:58,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1673970376, now seen corresponding path program 1 times [2021-01-07 05:44:58,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:44:58,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574736371] [2021-01-07 05:44:58,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:44:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:59,040 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:44:59,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574736371] [2021-01-07 05:44:59,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864269639] [2021-01-07 05:44:59,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:44:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:44:59,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 57 conjunts are in the unsatisfiable core [2021-01-07 05:44:59,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:44:59,196 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 [2021-01-07 05:44:59,197 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:59,206 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:59,211 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 [2021-01-07 05:44:59,214 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:44:59,223 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:59,224 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:44:59,225 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:14 [2021-01-07 05:44:59,664 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:59,665 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 17 treesize of output 17 [2021-01-07 05:44:59,666 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:59,668 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:59,669 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:44:59,689 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:59,701 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:59,701 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 15 [2021-01-07 05:44:59,703 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-01-07 05:44:59,725 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:44:59,727 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:59,728 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:44:59,729 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:44:59,730 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:44:59,732 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-01-07 05:44:59,732 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. [2021-01-07 05:44:59,733 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:41 [2021-01-07 05:44:59,734 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:59,798 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:44:59,884 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:44:59,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:44:59,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 26 [2021-01-07 05:44:59,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273226291] [2021-01-07 05:44:59,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-07 05:44:59,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:44:59,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-07 05:44:59,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=642, Unknown=0, NotChecked=0, Total=702 [2021-01-07 05:44:59,887 INFO L87 Difference]: Start difference. First operand 95 states and 105 transitions. Second operand 27 states. [2021-01-07 05:45:01,225 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-01-07 05:45:01,448 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-01-07 05:45:01,669 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-01-07 05:45:01,892 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2021-01-07 05:45:02,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:45:02,229 INFO L93 Difference]: Finished difference Result 103 states and 111 transitions. [2021-01-07 05:45:02,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-07 05:45:02,230 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 35 [2021-01-07 05:45:02,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:45:02,230 INFO L225 Difference]: With dead ends: 103 [2021-01-07 05:45:02,230 INFO L226 Difference]: Without dead ends: 103 [2021-01-07 05:45:02,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=332, Invalid=1390, Unknown=0, NotChecked=0, Total=1722 [2021-01-07 05:45:02,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-01-07 05:45:02,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2021-01-07 05:45:02,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-01-07 05:45:02,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 106 transitions. [2021-01-07 05:45:02,234 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 106 transitions. Word has length 35 [2021-01-07 05:45:02,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:45:02,234 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 106 transitions. [2021-01-07 05:45:02,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2021-01-07 05:45:02,234 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2021-01-07 05:45:02,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-01-07 05:45:02,235 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:45:02,235 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:45:02,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-01-07 05:45:02,450 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:45:02,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:45:02,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1628758875, now seen corresponding path program 2 times [2021-01-07 05:45:02,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:45:02,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660898495] [2021-01-07 05:45:02,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:45:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:45:02,656 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-07 05:45:02,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660898495] [2021-01-07 05:45:02,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990535659] [2021-01-07 05:45:02,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:45:02,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-07 05:45:02,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 05:45:02,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 58 conjunts are in the unsatisfiable core [2021-01-07 05:45:02,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:45:02,800 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-01-07 05:45:02,801 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:02,811 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:02,812 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:45:02,812 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:20 [2021-01-07 05:45:02,897 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:02,897 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 [2021-01-07 05:45:02,899 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:45:02,901 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:45:02,903 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:02,913 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:02,913 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:45:02,914 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:22 [2021-01-07 05:45:02,960 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_13|], 2=[|v_#memory_$Pointer$.base_17|]} [2021-01-07 05:45:02,965 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-01-07 05:45:02,967 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:02,987 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:02,993 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 20 treesize of output 19 [2021-01-07 05:45:02,994 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:03,013 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:03,014 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:45:03,015 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:45 [2021-01-07 05:45:03,232 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-01-07 05:45:03,234 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:03,252 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:03,255 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. [2021-01-07 05:45:03,255 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:59, output treesize:40 [2021-01-07 05:45:03,407 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:45:03,412 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:03,412 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 23 [2021-01-07 05:45:03,414 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:45:03,415 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:03,424 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:03,427 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:45:03,427 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:44, output treesize:4 [2021-01-07 05:45:03,439 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-07 05:45:03,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:45:03,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 25 [2021-01-07 05:45:03,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274951798] [2021-01-07 05:45:03,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-07 05:45:03,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:45:03,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-07 05:45:03,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=545, Unknown=0, NotChecked=0, Total=600 [2021-01-07 05:45:03,441 INFO L87 Difference]: Start difference. First operand 97 states and 106 transitions. Second operand 25 states. [2021-01-07 05:45:04,176 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-07 05:45:04,537 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2021-01-07 05:45:04,898 WARN L197 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2021-01-07 05:45:05,082 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-01-07 05:45:05,431 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2021-01-07 05:45:05,844 WARN L197 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2021-01-07 05:45:06,174 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2021-01-07 05:45:06,498 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2021-01-07 05:45:06,840 WARN L197 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2021-01-07 05:45:07,107 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2021-01-07 05:45:07,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:45:07,386 INFO L93 Difference]: Finished difference Result 114 states and 121 transitions. [2021-01-07 05:45:07,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-07 05:45:07,387 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 35 [2021-01-07 05:45:07,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:45:07,388 INFO L225 Difference]: With dead ends: 114 [2021-01-07 05:45:07,388 INFO L226 Difference]: Without dead ends: 114 [2021-01-07 05:45:07,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=420, Invalid=1472, Unknown=0, NotChecked=0, Total=1892 [2021-01-07 05:45:07,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-01-07 05:45:07,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2021-01-07 05:45:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2021-01-07 05:45:07,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 101 transitions. [2021-01-07 05:45:07,392 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 101 transitions. Word has length 35 [2021-01-07 05:45:07,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:45:07,393 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 101 transitions. [2021-01-07 05:45:07,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-01-07 05:45:07,393 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 101 transitions. [2021-01-07 05:45:07,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-01-07 05:45:07,393 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:45:07,393 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:45:07,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-01-07 05:45:07,594 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:45:07,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:45:07,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1627126577, now seen corresponding path program 2 times [2021-01-07 05:45:07,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:45:07,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51202054] [2021-01-07 05:45:07,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:45:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:45:08,234 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-07 05:45:08,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51202054] [2021-01-07 05:45:08,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223739690] [2021-01-07 05:45:08,235 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:45:08,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-07 05:45:08,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 05:45:08,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 84 conjunts are in the unsatisfiable core [2021-01-07 05:45:08,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:45:08,340 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 [2021-01-07 05:45:08,341 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:08,349 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:08,350 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:45:08,350 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2021-01-07 05:45:08,413 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 [2021-01-07 05:45:08,413 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:08,425 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:08,428 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 [2021-01-07 05:45:08,429 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:08,442 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:08,443 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:45:08,443 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:26 [2021-01-07 05:45:08,481 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:08,481 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 [2021-01-07 05:45:08,483 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:45:08,485 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:08,499 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:08,500 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:45:08,500 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:35 [2021-01-07 05:45:08,575 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 [2021-01-07 05:45:08,577 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:08,596 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:08,602 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 [2021-01-07 05:45:08,603 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:08,622 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:08,624 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:45:08,624 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:57, output treesize:58 [2021-01-07 05:45:08,798 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:08,798 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 66 [2021-01-07 05:45:08,802 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:08,867 INFO L625 ElimStorePlain]: treesize reduction 40, result has 62.3 percent of original size [2021-01-07 05:45:08,868 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:45:08,869 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:66 [2021-01-07 05:45:08,969 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:45:08,970 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:45:08,995 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:08,995 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 84 [2021-01-07 05:45:08,998 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:08,998 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:08,999 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:09,000 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:09,001 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:09,002 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:09,005 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:09,005 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:09,006 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:09,007 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:09,008 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:09,009 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:45:09,115 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-07 05:45:09,116 INFO L625 ElimStorePlain]: treesize reduction 24, result has 78.2 percent of original size [2021-01-07 05:45:09,125 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:45:09,126 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:45:09,151 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:09,152 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 60 [2021-01-07 05:45:09,154 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:09,268 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-01-07 05:45:09,270 INFO L625 ElimStorePlain]: treesize reduction 32, result has 71.9 percent of original size [2021-01-07 05:45:09,272 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:09,273 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:45:09,275 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. [2021-01-07 05:45:09,275 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:91, output treesize:104 [2021-01-07 05:45:09,277 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:09,278 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:45:09,390 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:09,391 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:09,696 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2021-01-07 05:45:10,113 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-07 05:45:11,762 WARN L197 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 61 [2021-01-07 05:45:12,030 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-07 05:45:16,067 WARN L197 SmtUtils]: Spent 3.81 s on a formula simplification that was a NOOP. DAG size: 99 [2021-01-07 05:45:18,308 WARN L197 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 99 [2021-01-07 05:45:18,341 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-07 05:45:18,362 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-07 05:45:18,382 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-07 05:45:18,420 INFO L443 ElimStorePlain]: Different costs {6=[v_prenex_3], 12=[v_prenex_4, v_prenex_5, v_prenex_6, |#memory_$Pointer$.base|, |#memory_$Pointer$.offset|]} [2021-01-07 05:45:18,429 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:45:18,447 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:18,447 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 110 treesize of output 95 [2021-01-07 05:45:18,450 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:18,451 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-07 05:45:18,452 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:18,457 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:45:18,661 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2021-01-07 05:45:18,662 INFO L625 ElimStorePlain]: treesize reduction 13, result has 96.6 percent of original size [2021-01-07 05:45:18,673 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:45:18,679 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:18,680 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 5 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 24 [2021-01-07 05:45:18,681 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-01-07 05:45:18,891 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2021-01-07 05:45:18,892 INFO L625 ElimStorePlain]: treesize reduction 5, result has 98.6 percent of original size [2021-01-07 05:45:18,908 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:45:18,909 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:45:18,957 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:18,958 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 115 [2021-01-07 05:45:18,966 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:19,142 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-01-07 05:45:19,143 INFO L625 ElimStorePlain]: treesize reduction 33, result has 89.3 percent of original size [2021-01-07 05:45:19,168 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:19,169 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 3 case distinctions, treesize of input 37 treesize of output 43 [2021-01-07 05:45:19,174 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:45:19,174 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:45:19,175 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:45:19,176 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:45:19,177 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:45:19,178 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-07 05:45:19,179 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:45:19,180 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 3 xjuncts. [2021-01-07 05:45:19,351 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2021-01-07 05:45:19,352 INFO L625 ElimStorePlain]: treesize reduction 8, result has 96.8 percent of original size [2021-01-07 05:45:19,359 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:45:19,360 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:45:19,401 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:19,402 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 162 treesize of output 131 [2021-01-07 05:45:19,408 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,409 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:45:19,410 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:45:19,411 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,412 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-07 05:45:19,413 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:19,415 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-07 05:45:19,415 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:45:19,416 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-07 05:45:19,417 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,417 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,419 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,419 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,421 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:45:19,421 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:45:19,422 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,424 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,424 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,426 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,427 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,428 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-01-07 05:45:19,429 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:45:19,430 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:45:19,431 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,432 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-07 05:45:19,433 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:19,434 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:45:19,435 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-07 05:45:19,435 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,436 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,437 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,438 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,439 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:45:19,440 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:45:19,441 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,442 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,443 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,444 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,445 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,446 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2021-01-07 05:45:19,448 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:45:19,448 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,449 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-07 05:45:19,450 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,451 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,452 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,453 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,454 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2021-01-07 05:45:19,455 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,456 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,457 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,458 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-07 05:45:19,459 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,460 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-07 05:45:19,464 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,465 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,466 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,466 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-07 05:45:19,468 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,469 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:45:19,472 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,472 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,474 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:19,476 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-07 05:45:19,477 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:19,478 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:45:19,479 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:45:19,480 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,481 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,482 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,483 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,484 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,485 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2021-01-07 05:45:19,486 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:19,487 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,488 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,489 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-07 05:45:19,491 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,492 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-07 05:45:19,495 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,496 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,497 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:19,499 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:45:19,500 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,501 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-07 05:45:19,504 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,504 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-07 05:45:19,508 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:45:19,509 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:45:19,509 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-07 05:45:19,510 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,511 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,513 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,514 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:45:19,514 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,515 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,517 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:45:19,517 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:45:19,518 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,519 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,522 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-07 05:45:19,523 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:19,524 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,525 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:45:19,526 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,527 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,528 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:45:19,530 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,531 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,531 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:45:19,535 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:19,537 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:45:19,538 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:45:19,539 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:45:19,541 INFO L547 ElimStorePlain]: Start of recursive call 6: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-07 05:45:19,700 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2021-01-07 05:45:19,701 INFO L625 ElimStorePlain]: treesize reduction 20, result has 88.0 percent of original size [2021-01-07 05:45:19,712 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:45:19,732 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:19,733 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 6 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 50 [2021-01-07 05:45:19,735 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:45:19,736 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-07 05:45:19,738 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-01-07 05:45:19,807 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:45:19,811 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:45:19,813 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:45:19,814 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:45:19,815 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,819 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 6 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2021-01-07 05:45:19,820 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 13 variables, input treesize:442, output treesize:78 [2021-01-07 05:45:19,822 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:45:19,823 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:45:19,824 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:45:19,825 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:19,981 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:45:19,983 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:45:19,984 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:45:19,985 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:45:20,156 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:45:20,160 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:45:20,267 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-07 05:45:20,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:45:20,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 36 [2021-01-07 05:45:20,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574256947] [2021-01-07 05:45:20,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-01-07 05:45:20,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:45:20,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-01-07 05:45:20,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1221, Unknown=0, NotChecked=0, Total=1332 [2021-01-07 05:45:20,269 INFO L87 Difference]: Start difference. First operand 94 states and 101 transitions. Second operand 37 states. [2021-01-07 05:45:24,100 WARN L197 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2021-01-07 05:45:30,010 WARN L197 SmtUtils]: Spent 5.77 s on a formula simplification. DAG size of input: 146 DAG size of output: 141 [2021-01-07 05:45:45,494 WARN L197 SmtUtils]: Spent 11.23 s on a formula simplification. DAG size of input: 188 DAG size of output: 183 [2021-01-07 05:46:00,217 WARN L197 SmtUtils]: Spent 9.32 s on a formula simplification. DAG size of input: 194 DAG size of output: 185 [2021-01-07 05:46:34,297 WARN L197 SmtUtils]: Spent 25.91 s on a formula simplification. DAG size of input: 205 DAG size of output: 196 [2021-01-07 05:46:57,905 WARN L197 SmtUtils]: Spent 19.43 s on a formula simplification. DAG size of input: 227 DAG size of output: 222 [2021-01-07 05:47:23,279 WARN L197 SmtUtils]: Spent 21.23 s on a formula simplification. DAG size of input: 235 DAG size of output: 224 [2021-01-07 05:48:05,362 WARN L197 SmtUtils]: Spent 37.88 s on a formula simplification. DAG size of input: 254 DAG size of output: 243